Exhibit 10.1
	AMENDED AND RESTATED DECLARATION
	OF TRUST
	by and among
	WILMINGTON TRUST COMPANY,
	as Delaware Trustee,
	WILMINGTON TRUST COMPANY,
	as Institutional Trustee,
	TEXAS CAPITAL BANCSHARES, INC.,
	as Sponsor,
	and
	JOSEPH M. GRANT and DWAIN HOWARD,
	as Administrators,
	Dated as of April 28, 2006
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	 
 
	 
	TABLE OF CONTENTS
|  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  | Page | 
| ARTICLE I INTERPRETATION AND DEFINITIONS |  |  | 1 |  | 
| 
	 
 |  | Section 1.1. |  | Definitions |  |  | 1 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE II ORGANIZATION |  |  | 7 |  | 
| 
	 
 |  | Section 2.1. |  | Name |  |  | 7 |  | 
| 
	 
 |  | Section 2.2. |  | Office |  |  | 7 |  | 
| 
	 
 |  | Section 2.3. |  | Purpose |  |  | 7 |  | 
| 
	 
 |  | Section 2.4. |  | Authority |  |  | 8 |  | 
| 
	 
 |  | Section 2.5. |  | Title to Property of the Trust |  |  | 8 |  | 
| 
	 
 |  | Section 2.6. |  | Powers and Duties of the Trustees and the Administrators |  |  | 8 |  | 
| 
	 
 |  | Section 2.7. |  | Prohibition of Actions by the Trust and the Institutional Trustee |  |  | 11 |  | 
| 
	 
 |  | Section 2.8. |  | Powers and Duties of the Institutional Trustee |  |  | 12 |  | 
| 
	 
 |  | Section 2.9. |  | Certain Duties and Responsibilities of the Trustees and Administrators |  |  | 13 |  | 
| 
	 
 |  | Section 2.10. |  | Certain Rights of Institutional Trustee |  |  | 14 |  | 
| 
	 
 |  | Section 2.11. |  | Delaware Trustee |  |  | 16 |  | 
| 
	 
 |  | Section 2.12. |  | Execution of Documents |  |  | 17 |  | 
| 
	 
 |  | Section 2.13. |  | Not Responsible for Recitals or Issuance of Securities |  |  | 17 |  | 
| 
	 
 |  | Section 2.14. |  | Duration of Trust |  |  | 17 |  | 
| 
	 
 |  | Section 2.15. |  | Mergers |  |  | 17 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE III SPONSOR |  |  | 18 |  | 
| 
	 
 |  | Section 3.1. |  | Sponsors Purchase of Common Securities |  |  | 18 |  | 
| 
	 
 |  | Section 3.2. |  | Responsibilities of the Sponsor |  |  | 18 |  | 
| 
	 
 |  | Section 3.3. |  | Expenses |  |  | 19 |  | 
| 
	 
 |  | Section 3.4. |  | Right to Proceed |  |  | 19 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE IV INSTITUTIONAL TRUSTEE AND ADMINISTRATORS |  |  | 19 |  | 
| 
	 
 |  | Section 4.1. |  | Number of Trustees |  |  | 19 |  | 
| 
	 
 |  | Section 4.2. |  | Delaware Trustee; Eligibility |  |  | 20 |  | 
| 
	 
 |  | Section 4.3. |  | Institutional Trustee; Eligibility |  |  | 20 |  | 
| 
	 
 |  | Section 4.4. |  | Administrators |  |  | 20 |  | 
| 
	 
 |  | Section 4.5. |  | Appointment, Removal and Resignation of Trustees and Administrators |  |  | 21 |  | 
| 
	 
 |  | Section 4.6. |  | Vacancies Among Trustees |  |  | 22 |  | 
| 
	 
 |  | Section 4.7. |  | Effect of Vacancies |  |  | 22 |  | 
| 
	 
 |  | Section 4.8. |  | Meetings of the Trustees and the Administrators |  |  | 22 |  | 
| 
	 
 |  | Section 4.9. |  | Delegation of Power |  |  | 23 |  | 
| 
	 
 |  | Section 4.10. |  | Conversion, Consolidation or Succession to Business |  |  | 23 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE V DISTRIBUTIONS |  |  | 23 |  | 
| 
	 
 |  | Section 5.1. |  | Distributions |  |  | 23 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE VI ISSUANCE OF SECURITIES |  |  | 23 |  | 
| 
	 
 |  | Section 6.1. |  | General Provisions Regarding Securities |  |  | 23 |  | 
| 
	 
 |  | Section 6.2. |  | Paying Agent, Transfer Agent and Registrar |  |  | 24 |  | 
| 
	 
 |  | Section 6.3. |  | Form and Dating |  |  | 25 |  | 
| 
	 
 |  | Section 6.4. |  | Mutilated, Destroyed, Lost or Stolen Certificates |  |  | 25 |  | 
| 
	 
 |  | Section 6.5. |  | Temporary Securities |  |  | 25 |  | 
 
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	i
 
	 
|  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  | Page | 
| 
	 
 |  | Section 6.6. |  | Cancellation |  |  | 25 |  | 
| 
	 
 |  | Section 6.7. |  | Rights of Holders; Waivers of Past Defaults |  |  | 26 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE VII DISSOLUTION AND TERMINATION OF TRUST |  |  | 27 |  | 
| 
	 
 |  | Section 7.1. |  | Dissolution and Termination of Trust |  |  | 27 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE VIII TRANSFER OF INTERESTS |  |  | 28 |  | 
| 
	 
 |  | Section 8.1. |  | General |  |  | 28 |  | 
| 
	 
 |  | Section 8.2. |  | Transfer Procedures and Restrictions |  |  | 29 |  | 
| 
	 
 |  | Section 8.3. |  | Deemed Security Holders |  |  | 31 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE IX LIMITATION OF LIABILITY OF HOLDERS OF SECURITIES, INSTITUTIONAL TRUSTEE OR OTHERS |  |  | 31 |  | 
| 
	 
 |  | Section 9.1. |  | Liability |  |  | 31 |  | 
| 
	 
 |  | Section 9.2. |  | Exculpation |  |  | 31 |  | 
| 
	 
 |  | Section 9.3. |  | Fiduciary Duty |  |  | 32 |  | 
| 
	 
 |  | Section 9.4. |  | Indemnification |  |  | 32 |  | 
| 
	 
 |  | Section 9.5. |  | Outside Businesses |  |  | 34 |  | 
| 
	 
 |  | Section 9.6. |  | Compensation; Fee |  |  | 34 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE X ACCOUNTING |  |  | 35 |  | 
| 
	 
 |  | Section 10.1. |  | Fiscal Year |  |  | 35 |  | 
| 
	 
 |  | Section 10.2. |  | Certain Accounting Matters |  |  | 35 |  | 
| 
	 
 |  | Section 10.3. |  | Banking |  |  | 36 |  | 
| 
	 
 |  | Section 10.4. |  | Withholding |  |  | 36 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE XI AMENDMENTS AND MEETINGS |  |  | 36 |  | 
| 
	 
 |  | Section 11.1. |  | Amendments |  |  | 36 |  | 
| 
	 
 |  | Section 11.2. |  | Meetings of the Holders of Securities; Action by Written Consent |  |  | 38 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE XII REPRESENTATIONS OF INSTITUTIONAL TRUSTEE AND THE DELAWARE TRUSTEE |  |  | 39 |  | 
| 
	 
 |  | Section 12.1. |  | Representations and Warranties of Institutional Trustee |  |  | 39 |  | 
| 
	 
 |  | Section 12.2. |  | Representations of the Delaware Trustee |  |  | 39 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE XIII MISCELLANEOUS |  |  | 40 |  | 
| 
	 
 |  | Section 13.1. |  | Notices |  |  | 40 |  | 
| 
	 
 |  | Section 13.2. |  | Governing Law |  |  | 41 |  | 
| 
	 
 |  | Section 13.3. |  | Intention of the Parties |  |  | 41 |  | 
| 
	 
 |  | Section 13.4. |  | Headings |  |  | 41 |  | 
| 
	 
 |  | Section 13.5. |  | Successors and Assigns |  |  | 41 |  | 
| 
	 
 |  | Section 13.6. |  | Partial Enforceability |  |  | 41 |  | 
| 
	 
 |  | Section 13.7. |  | Counterparts |  |  | 42 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| Annex I |  | Terms of Securities |  |  |  |  | 
| Exhibit A-1 |  | Form of Capital Security Certificate |  |  |  |  | 
| Exhibit A-2 |  | Form of Common Security Certificate |  |  |  |  | 
| Exhibit B |  | Specimen of Initial Debenture |  |  |  |  | 
| Exhibit C |  | Placement Agreement |  |  |  |  | 
 
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	ii
 
	 
	AMENDED AND RESTATED
	DECLARATION OF TRUST
	OF
	TEXAS CAPITAL STATUTORY TRUST IV
	April 28, 2006
	     AMENDED AND RESTATED DECLARATION OF TRUST (
	Declaration
	) dated and effective as of
	April 28, 2006, by the Trustees (as defined herein), the Administrators (as defined herein), the
	Sponsor (as defined herein) and by the holders, from time to time, of undivided beneficial
	interests in the Trust (as defined herein) to be issued pursuant to this Declaration;
	     WHEREAS, the Trustees, the Administrators and the Sponsor established Texas Capital Statutory
	Trust IV (the 
	Trust
	), a statutory trust under the Statutory Trust Act (as defined herein)
	pursuant to a Declaration of Trust dated as of April 25, 2006 (the 
	Original Declaration
	),
	and a Certificate of Trust filed with the Secretary of State of the State of Delaware on April 25,
	2006, for the sole purpose of issuing and selling certain securities representing undivided
	beneficial interests in the assets of the Trust and investing the proceeds thereof in certain
	debentures of the Debenture Issuer (as defined herein);
	     WHEREAS, as of the date hereof, no interests in the Trust have been issued; and
	     WHEREAS, the Trustees, the Administrators and the Sponsor, by this Declaration, amend and
	restate each and every term and provision of the Original Declaration;
	     NOW, THEREFORE, it being the intention of the parties hereto to continue the Trust as a
	statutory trust under the Statutory Trust Act and that this Declaration constitutes the governing
	instrument of such statutory trust, the Trustees declare that all assets contributed to the Trust
	will be held in trust for the benefit of the holders, from time to time, of the securities
	representing undivided beneficial interests in the assets of the Trust issued hereunder, subject to
	the provisions of this Declaration. The parties hereto hereby agree as follows:
	ARTICLE I
	INTERPRETATION AND DEFINITIONS
	     
	Section 1.1.
	Definitions
	.
	     Unless the context otherwise requires:
	     (a) Capitalized terms used in this Declaration but not defined in the preamble above have the
	respective meanings assigned to them in this Section 1.1;
	     (b) a term defined anywhere in this Declaration has the same meaning throughout;
	     (c) all references to the Declaration or this Declaration are to this Declaration as modified,
	supplemented or amended from time to time;
	     (d) all references in this Declaration to Articles and Sections and Annexes and Exhibits are
	to Articles and Sections of and Annexes and Exhibits to this Declaration unless otherwise
	specified; and
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	1
 
	 
	     (e) a reference to the singular includes the plural and vice versa.
	     
	Acceleration Event of Default
	 has the meaning set forth in the Indenture.
	     
	Additional Interest
	 has the meaning set forth in the Indenture.
	     
	Administrative Action
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Administrators
	 means each of Joseph M. Grant and Dwain Howard, solely in such
	Persons capacity as Administrator of the Trust created and continued hereunder and not in such
	Persons individual capacity, or such Administrators successor in interest in such capacity, or
	any successor appointed as herein provided.
	     
	Affiliate
	 has the same meaning as given to that term in Rule 405 of the Securities
	Act or any successor rule thereunder.
	     
	Authorized Officer
	 of a Person means any Person that is authorized to bind such
	Person.
	     
	Bankruptcy Event
	 means, with respect to any Person:
	     (a) a court having jurisdiction in the premises shall enter a decree or order for relief in
	respect of such Person in an involuntary case under any applicable bankruptcy, insolvency or other
	similar law now or hereafter in effect, or appointing a receiver, liquidator, assignee, custodian,
	trustee, sequestrator (or similar official) of such Person or for any substantial part of its
	property, or ordering the winding-up or liquidation of its affairs and such decree or order shall
	remain unstayed and in effect for a period of 90 consecutive days; or
	     (b) such Person shall commence a voluntary case under any applicable bankruptcy, insolvency or
	other similar law now or hereafter in effect, shall consent to the entry of an order for relief in
	an involuntary case under any such law, or shall consent to the appointment of or taking possession
	by a receiver, liquidator, assignee, trustee, custodian, sequestrator (or other similar official)
	of such Person of any substantial part of its property, or shall make any general assignment for
	the benefit of creditors, or shall fail generally to pay its debts as they become due.
	     
	Business Day
	 means any day other than Saturday, Sunday or any other day on which
	banking institutions in New York City or Wilmington, Delaware are permitted or required by any
	applicable law or executive order to close.
	     
	Capital Securities
	 has the meaning set forth in paragraph 1(a) of Annex I.
	     
	Capital Security Certificate
	 means a definitive Certificate in fully registered form
	representing a Capital Security substantially in the form of Exhibit A-1.
	     
	Capital Treatment Event
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Certificate
	 means any certificate evidencing Securities.
	     
	Closing Date
	 has the meaning set forth in the Placement Agreement.
	     
	Code
	 means the Internal Revenue Code of 1986, as amended from time to time, or any
	successor legislation.
	     
	Common Securities
	 has the meaning set forth in paragraph 1(b) of Annex I.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	2
 
	 
	     
	Common Security Certificate
	 means a definitive Certificate in fully registered form
	representing a Common Security substantially in the form of Exhibit A-2.
	     
	Company Indemnified Person
	 means (a) any Administrator; (b) any Affiliate of any
	Administrator; (c) any officers, directors, shareholders, members, partners, employees,
	representatives or agents of any Administrator; or (d) any officer, employee or agent of the Trust
	or its Affiliates.
	     
	Corporate Trust Office
	 means the office of the Institutional Trustee at which the
	corporate trust business of the Institutional Trustee shall, at any particular time, be principally
	administered, which office at the date of execution of this Declaration is located at Rodney Square
	North, 1100 North Market Street, Wilmington, Delaware 19890-1600, Attn: Corporate Trust
	Administration.
	     
	Coupon Rate
	 has the meaning set forth in paragraph 2(a) of Annex I.
	     
	Covered Person
	 means: (a) any Administrator, officer, director, shareholder,
	partner, member, representative, employee or agent of (i) the Trust or (ii) any of the Trusts
	Affiliates; and (b) any Holder of Securities.
	     
	Creditor
	 has the meaning set forth in Section 3.3.
	     
	Debenture Issuer
	 means Texas Capital Bancshares, Inc., a Delaware corporation, in
	its capacity as issuer of the Debentures under the Indenture.
	     
	Debenture Trustee
	 means Wilmington Trust Company, as trustee under the Indenture
	until a successor is appointed thereunder, and thereafter means such successor trustee.
	     
	Debentures
	 means the Floating Rate Junior Subordinated Deferrable Interest
	Debentures due 2036 to be issued by the Debenture Issuer under the Indenture.
	     
	Defaulted Interest
	 has the meaning set forth in the Indenture.
	     
	Delaware Trustee
	 has the meaning set forth in Section 4.2.
	     
	Determination Date
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Direct Action
	 has the meaning set forth in Section 2.8(d).
	     
	Distribution
	 means a distribution payable to Holders of Securities in accordance
	with Section 5.1.
	     
	Distribution Payment Date
	 has the meaning set forth in paragraph 2(b) of Annex I.
	     
	Distribution Period
	 means (i) with respect to the Distribution paid on the first
	Distribution Payment Date, the period beginning on (and including) the date of original issuance
	and ending on (but excluding) the Distribution Payment Date in June 2006 and (ii) thereafter, with
	respect to a Distribution paid on each successive Distribution Payment Date, the period beginning
	on (and including) the preceding Distribution Payment Date and ending on (but excluding) such
	current Distribution Payment Date.
	     
	Distribution Rate
	 means, for the Distribution Period beginning on (and including)
	the date of original issuance and ending on (but excluding) the Distribution Payment Date in June
	2006, the rate per annum of 6.74875%, and for each Distribution Period beginning on or after the
	Distribution Payment Date in June 2006, the Coupon Rate for such Distribution Period.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	3
 
	 
	     
	Event of Default
	 means any one of the following events (whatever the reason for such
	event and whether it shall be voluntary or involuntary or be effected by operation of law or
	pursuant to any judgment, decree or order of any court or any order, rule or regulation of any
	administrative or governmental body):
	     (a) the occurrence of an Indenture Event of Default; or
	     (b) default by the Trust in the payment of any Redemption Price or Special Redemption Price of
	any Security when it becomes due and payable; or
	     (c) default in the performance, or breach, in any material respect, of any covenant or
	warranty of the Institutional Trustee in this Declaration (other than those specified in clause (a)
	or (b) above) and continuation of such default or breach for a period of 60 days after there has
	been given, by registered or certified mail to the Institutional Trustee and to the Sponsor by the
	Holders of at least 25% in aggregate liquidation amount of the outstanding Capital Securities, a
	written notice specifying such default or breach and requiring it to be remedied and stating that
	such notice is a Notice of Default hereunder; or
	     (d) the occurrence of a Bankruptcy Event with respect to the Institutional Trustee if a
	successor Institutional Trustee has not been appointed within 90 days thereof.
	     
	Extension Period
	 has the meaning set forth in paragraph 2(b) of Annex I.
	     
	Federal Reserve
	 has the meaning set forth in paragraph 3 of Annex I.
	     
	Fiduciary Indemnified Person
	 shall mean each of the Institutional Trustee (including
	in its individual capacity), the Delaware Trustee (including in its individual capacity), any
	Affiliate of the Institutional Trustee or Delaware Trustee and any officers, directors,
	shareholders, members, partners, employees, representatives, custodians, nominees or agents of the
	Institutional Trustee or Delaware Trustee.
	     
	Fiscal Year
	 has the meaning set forth in Section 10.1.
	     
	Guarantee
	 means the guarantee agreement to be dated as of the Closing Date, of the
	Sponsor in respect of the Capital Securities.
	     
	Holder
	 means a Person in whose name a Certificate representing a Security is
	registered, such Person being a beneficial owner within the meaning of the Statutory Trust Act.
	     
	Indemnified Person
	 means a Company Indemnified Person or a Fiduciary Indemnified
	Person.
	     
	Indenture
	 means the Indenture dated as of the Closing Date, between the Debenture
	Issuer and the Debenture Trustee, and any indenture supplemental thereto pursuant to which the
	Debentures are to be issued, as such Indenture and any supplemental indenture may be amended,
	supplemented or otherwise modified from time to time.
	     
	Indenture Event of Default
	 means an Event of Default as defined in the Indenture.
	     
	Institutional Trustee
	 means the Trustee meeting the eligibility requirements set
	forth in Section 4.3.
	     
	Interest
	 means any interest due on the Debentures including any Additional Interest
	and Defaulted Interest.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	4
 
	 
	     
	Investment Company
	 means an investment company as defined in the Investment Company
	Act.
	     
	Investment Company Act
	 means the Investment Company Act of 1940, as amended from
	time to time, or any successor legislation.
	     
	Investment Company Event
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Liquidation
	 has the meaning set forth in paragraph 3 of Annex I.
	     
	Liquidation Distribution
	 has the meaning set forth in paragraph 3 of Annex I.
	     
	Majority in liquidation amount of the Securities
	 means Holder(s) of outstanding
	Securities voting together as a single class or, as the context may require, Holders of outstanding
	Capital Securities or Holders of outstanding Common Securities voting separately as a class, who
	are the record owners of more than 50% of the aggregate liquidation amount (including the stated
	amount that would be paid on redemption, liquidation or otherwise, plus accrued and unpaid
	Distributions to the date upon which the voting percentages are determined) of all outstanding
	Securities of the relevant class.
	     
	Maturity Date
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Officers Certificates
	 means, with respect to any Person, a certificate signed by
	two Authorized Officers of such Person. Any Officers Certificate delivered with respect to
	compliance with a condition or covenant providing for it in this Declaration shall include:
	     (a) a statement that each officer signing the Certificate has read the covenant or condition
	and the definitions relating thereto;
	     (b) a brief statement of the nature and scope of the examination or investigation undertaken
	by each officer in rendering the Certificate;
	     (c) a statement that each such officer has made such examination or investigation as, in such
	officers opinion, is necessary to enable such officer to express an informed opinion as to whether
	or not such covenant or condition has been complied with; and
	     (d) a statement as to whether, in the opinion of each such officer, such condition or covenant
	has been complied with.
	     
	OTS
	 has the meaning set forth in paragraph 3 of Annex I.
	     
	Paying Agent
	 has the meaning specified in Section 6.2.
	     
	Person
	 means a legal person, including any individual, corporation, estate,
	partnership, joint venture, association, joint stock company, limited liability company, trust,
	unincorporated association, or government or any agency or political subdivision thereof, or any
	other entity of whatever nature.
	     
	Placement Agreement
	 means the Placement Agreement relating to the offering and sale
	of Capital Securities in the form of Exhibit C.
	     
	Property Account
	 has the meaning set forth in Section 2.8(c).
	     
	Pro Rata
	 has the meaning set forth in paragraph 8 of Annex I.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	5
 
	 
	     
	Quorum
	 means a majority of the Administrators or, if there are only two
	Administrators, both of them.
	     
	Redemption Date
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Redemption/Distribution Notice
	 has the meaning set forth in paragraph 4(e) of Annex
	I.
	     
	Redemption Price
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Registrar
	 has the meaning set forth in Section 6.2.
	     
	Relevant Trustee
	 has the meaning set forth in Section 4.5(a).
	     
	Responsible Officer
	 means, with respect to the Institutional Trustee, any officer
	within the Corporate Trust Office of the Institutional Trustee, including any vice-president, any
	assistant vice-president, any assistant secretary, the treasurer, any assistant treasurer, any
	trust officer or other officer of the Corporate Trust Office of the Institutional Trustee
	customarily performing functions similar to those performed by any of the above designated officers
	and also means, with respect to a particular corporate trust matter, any other officer to whom such
	matter is referred because of that officers knowledge of and familiarity with the particular
	subject.
	     
	Restricted Securities Legend
	 has the meaning set forth in Section 8.2(b).
	     
	Rule 3a-5
	 means Rule 3a-5 under the Investment Company Act.
	     
	Rule 3a-7
	 means Rule 3a-7 under the Investment Company Act.
	     
	Securities
	 means the Common Securities and the Capital Securities.
	     
	Securities Act
	 means the Securities Act of 1933, as amended from time to time, or
	any successor legislation.
	     
	Special Event
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Special Redemption Date
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Special Redemption Price
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Sponsor
	 means Texas Capital Bancshares, Inc., a Delaware corporation, or any
	successor entity in a merger, consolidation or amalgamation, in its capacity as sponsor of the
	Trust.
	     
	Statutory Trust Act
	 means Chapter 38 of Title 12 of the Delaware Code, 12 Del. C. §§
	3801,
	et seq.
	as may be amended from time to time.
	     
	Successor Entity
	 has the meaning set forth in Section 2.15(b).
	     
	Successor Delaware Trustee
	 has the meaning set forth in Section 4.5(e).
	     
	Successor Institutional Trustee
	 has the meaning set forth in Section 4.5(b).
	     
	Successor Securities
	 has the meaning set forth in Section 2.15(b).
	     
	Super Majority
	 has the meaning set forth in paragraph 5(b) of Annex I.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	6
 
	 
	     
	Tax Event
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	10% in liquidation amount of the Securities
	 means Holder(s) of outstanding
	Securities voting together as a single class or, as the context may require, Holders of outstanding
	Capital Securities or Holders of outstanding Common Securities voting separately as a class, who
	are the record owners of 10% or more of the aggregate liquidation amount (including the stated
	amount that would be paid on redemption, liquidation or otherwise, plus accrued and unpaid
	Distributions to the date upon which the voting percentages are determined) of all outstanding
	Securities of the relevant class.
	     
	3-Month LIBOR
	 has the meaning set forth in paragraph 4(a) of Annex I.
	     
	Transfer Agent
	 has the meaning set forth in Section 6.2.
	     
	Treasury Regulations
	 means the income tax regulations, including temporary and
	proposed regulations, promulgated under the Code by the United States Treasury, as such regulations
	may be amended from time to time (including corresponding provisions of succeeding regulations).
	     
	Trust Property
	 means (a) the Debentures, (b) any cash on deposit in, or owing to,
	the Property Account and (c) all proceeds and rights in respect of the foregoing and any other
	property and assets for the time being held or deemed to be held by the Institutional Trustee
	pursuant to the trusts of this Declaration.
	     
	Trustee
	 or 
	Trustees
	 means each Person who has signed this Declaration as a
	trustee, so long as such Person shall continue in office in accordance with the terms hereof, and
	all other Persons who may from time to time be duly appointed, qualified and serving as Trustees in
	accordance with the provisions hereof, and references herein to a Trustee or the Trustees shall
	refer to such Person or Persons solely in their capacity as trustees hereunder.
	     
	U.S. Person
	 means a United States Person as defined in Section 7701(a)(30) of the
	Code.
	ARTICLE II
	ORGANIZATION
	     
	Section 2.1.
	Name
	.
	The Trust is named Texas Capital Statutory Trust IV, as such
	name may be modified from time to time by the Administrators following written notice to the
	Holders of the Securities. The Trusts activities may be conducted under the name of the Trust or
	any other name deemed advisable by the Administrators.
	     
	Section 2.2.
	Office
	.
	The address of the principal office of the Trust is c/o
	Wilmington Trust Company, Rodney Square North, 1100 North Market Street, Wilmington, Delaware
	19890-1600. On at least 10 Business Days written notice to the Holders of the Securities, the
	Administrators may designate another principal office, which shall be in a state of the United
	States or in the District of Columbia.
	     
	Section 2.3.
	Purpose
	.
	The exclusive purposes and functions of the Trust are (a) to
	issue and sell the Securities representing undivided beneficial interests in the assets of the
	Trust, (b) to invest the gross proceeds from such sale to acquire the Debentures, (c) to facilitate
	direct investment in the assets of the Trust through issuance of the Common Securities and the
	Capital Securities and (d) except as otherwise limited herein, to engage in only those other
	activities necessary or incidental thereto. The Trust shall not borrow money, issue debt or
	reinvest proceeds derived from investments, pledge any of its assets, or otherwise undertake (or
	permit to be undertaken) any activity that would cause the Trust not to be classified for United
	States federal income tax purposes as a grantor trust.
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	7
 
	 
	     
	Section 2.4.
	Authority
	.
	Except as specifically provided in this Declaration, the
	Institutional Trustee shall have exclusive and complete authority to carry out the purposes of the
	Trust. An action taken by a Trustee in accordance with its powers shall constitute the act of and
	serve to bind the Trust. In dealing with the Trustees acting on behalf of the Trust, no Person
	shall be required to inquire into the authority of the Trustees to bind the Trust. Persons dealing
	with the Trust are entitled to rely conclusively on the power and authority of the Trustees as set
	forth in this Declaration. The Administrators shall have only those ministerial duties set forth
	herein with respect to accomplishing the purposes of the Trust and are not intended to be trustees
	or fiduciaries with respect to the Trust or the Holders. The Institutional Trustee shall have the
	right, but shall not be obligated except as provided in Section 2.6, to perform those duties
	assigned to the Administrators.
	     
	Section 2.5.
	Title to Property of the Trust
	.
	Except as provided in Section 2.8 with
	respect to the Debentures and the Property Account or as otherwise provided in this Declaration,
	legal title to all assets of the Trust shall be vested in the Trust. The Holders shall not have
	legal title to any part of the assets of the Trust, but shall have an undivided beneficial interest
	in the assets of the Trust.
	     
	Section 2.6.
	Powers and Duties of the Trustees and the Administrators.
	     (a) The Trustees and the Administrators shall conduct the affairs of the Trust in accordance
	with the terms of this Declaration. Subject to the limitations set forth in paragraph (b) of this
	Section, and in accordance with the following provisions (i) and (ii), the Trustees and the
	Administrators shall have the authority to enter into all transactions and agreements determined by
	the Institutional Trustee to be appropriate in exercising the authority, express or implied,
	otherwise granted to the Trustees or the Administrators, as the case may be, under this
	Declaration, and to perform all acts in furtherance thereof, including without limitation, the
	following:
	     (i) Each Administrator shall have the power and authority to act on behalf of the Trust
	with respect to the following matters:
	     (A) the issuance and sale of the Securities;
	     (B) to cause the Trust to enter into, and to execute and deliver on behalf of
	the Trust, such agreements as may be necessary or desirable in connection with the
	purposes and function of the Trust, including agreements with the Paying Agent;
	     (C) ensuring compliance with the Securities Act, applicable state securities or
	blue sky laws;
	     (D) the sending of notices (other than notices of default), and other
	information regarding the Securities and the Debentures to the Holders in accordance
	with this Declaration;
	     (E) the consent to the appointment of a Paying Agent, Transfer Agent and
	Registrar in accordance with this Declaration, which consent shall not be
	unreasonably withheld or delayed;
	     (F) execution and delivery of the Securities in accordance with this
	Declaration;
	     (G) execution and delivery of closing certificates pursuant to the Placement
	Agreement and the application for a taxpayer identification number;
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	8
 
	 
	     (H) unless otherwise determined by the Holders of a Majority in liquidation
	amount of the Securities or as otherwise required by the Statutory Trust Act, to
	execute on behalf of the Trust (either acting alone or together with any or all of
	the Administrators) any documents that the Administrators have the power to execute
	pursuant to this Declaration;
	     (I) the taking of any action incidental to the foregoing as the Institutional
	Trustee may from time to time determine is necessary or advisable to give effect to
	the terms of this Declaration for the benefit of the Holders (without consideration
	of the effect of any such action on any particular Holder);
	     (J) to establish a record date with respect to all actions to be taken
	hereunder that require a record date be established, including Distributions, voting
	rights, redemptions and exchanges, and to issue relevant notices to the Holders of
	Capital Securities and Holders of Common Securities as to such actions and
	applicable record dates; and
	     (K) to duly prepare and file all applicable tax returns and tax information
	reports that are required to be filed with respect to the Trust on behalf of the
	Trust.
	     (ii) As among the Trustees and the Administrators, the Institutional Trustee shall have
	the power, duty and authority to act on behalf of the Trust with respect to the following
	matters:
	     (A) the establishment of the Property Account;
	     (B) the receipt of the Debentures;
	     (C) the collection of interest, principal and any other payments made in
	respect of the Debentures in the Property Account;
	     (D) the distribution through the Paying Agent of amounts owed to the Holders in
	respect of the Securities;
	     (E) the exercise of all of the rights, powers and privileges of a holder of the
	Debentures;
	     (F) the sending of notices of default and other information regarding the
	Securities and the Debentures to the Holders in accordance with this Declaration;
	     (G) the distribution of the Trust Property in accordance with the terms of this
	Declaration;
	     (H) to the extent provided in this Declaration, the winding up of the affairs of
	and liquidation of the Trust and the preparation, execution and filing of the
	certificate of cancellation with the Secretary of State of the State of Delaware;
	     (I) after any Event of Default (
	provided
	that such Event of Default is
	not by or with respect to the Institutional Trustee) the taking of any action
	incidental to the foregoing as the Institutional Trustee may from time to time
	determine is necessary or advisable to give effect to the terms of this Declaration
	and protect and conserve the Trust Property for the benefit of the Holders (without
	consideration of the effect of any such action on any particular Holder); and
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	     (J) to take all action that may be necessary for the preservation and the
	continuation of the Trusts valid existence, rights, franchises and privileges as a
	statutory trust under the laws of the State of Delaware.
	     (iii) The Institutional Trustee shall have the power and authority to act on behalf of
	the Trust with respect to any of the duties, liabilities, powers or the authority of the
	Administrators set forth in Section 2.6(a)(i)(D), (E) and (F) herein but shall not have a
	duty to do any such act unless specifically requested to do so in writing by the Sponsor,
	and shall then be fully protected in acting pursuant to such written request; and in the
	event of a conflict between the action of the Administrators and the action of the
	Institutional Trustee, the action of the Institutional Trustee shall prevail.
	     (b) So long as this Declaration remains in effect, the Trust (or the Trustees or
	Administrators acting on behalf of the Trust) shall not undertake any business, activities or
	transaction except as expressly provided herein or contemplated hereby. In particular, neither the
	Trustees nor the Administrators may cause the Trust to (i) acquire any investments or engage in any
	activities not authorized by this Declaration, (ii) sell, assign, transfer, exchange, mortgage,
	pledge, set-off or otherwise dispose of any of the Trust Property or interests therein, including
	to Holders, except as expressly provided herein, (iii) take any action that would reasonably be
	expected (x) to cause the Trust to fail or cease to qualify as a grantor trust for United States
	federal income tax purposes or (y) to require the trust to register as an Investment Company under
	the Investment Company Act, (iv) incur any indebtedness for borrowed money or issue any other debt
	or (v) take or consent to any action that would result in the placement of a lien on any of the
	Trust Property. The Institutional Trustee shall, at the sole cost and expense of the Trust, defend
	all claims and demands of all Persons at any time claiming any lien on any of the Trust Property
	adverse to the interest of the Trust or the Holders in their capacity as Holders.
	     (c) In connection with the issuance and sale of the Capital Securities, the Sponsor shall have
	the right and responsibility to assist the Trust with respect to, or effect on behalf of the Trust,
	the following (and any actions taken by the Sponsor in furtherance of the following prior to the
	date of this Declaration are hereby ratified and confirmed in all respects):
	     (i) the taking of any action necessary to obtain an exemption from the Securities Act;
	     (ii) the determination of the States in which to take appropriate action to qualify or
	register for sale all or part of the Capital Securities and the determination of any and all
	such acts, other than actions which must be taken by or on behalf of the Trust, and the
	advice to the Administrators of actions they must take on behalf of the Trust, and the
	preparation for execution and filing of any documents to be executed and filed by the Trust
	or on behalf of the Trust, as the Sponsor deems necessary or advisable in order to comply
	with the applicable laws of any such States in connection with the sale of the Capital
	Securities;
	     (iii) the negotiation of the terms of, and the execution and delivery of, the Placement
	Agreement providing for the sale of the Capital Securities; and
	     (iv) the taking of any other actions necessary or desirable to carry out any of the
	foregoing activities.
	     (d) Notwithstanding anything herein to the contrary, the Administrators and the Holders of a
	Majority in liquidation amount of the Common Securities are authorized and directed to conduct the
	affairs of the Trust and to operate the Trust so that the Trust will not (i) be deemed to be an
	Investment
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	10
 
	 
	Company required to be registered under the Investment Company Act, and (ii) fail to be
	classified as a grantor trust for United States federal income tax purposes. The Administrators
	and the Holders of a Majority in liquidation amount of the Common Securities shall not take any
	action inconsistent with the treatment of the Debentures as indebtedness of the Debenture Issuer
	for United States federal income tax purposes. In this connection, the Administrators and the
	Holders of a Majority in liquidation amount of the Common Securities are authorized to take any
	action, not inconsistent with applicable laws, the Certificate of Trust or this Declaration, as
	amended from time to time, that each of the Administrators and the Holders of a Majority in
	liquidation amount of the Common Securities determines in their discretion to be necessary or
	desirable for such purposes.
	     (e) All expenses incurred by the Administrators or the Trustees pursuant to this Section 2.6
	shall be reimbursed by the Sponsor, and the Trustees and the Administrators shall have no
	obligations with respect to such expenses (for purposes of clarification, this Section 2.6(e) does
	not contemplate the payment by the Sponsor of acceptance or annual administration fees owing to the
	Trustees under this Declaration or the fees and expenses of the Trustees counsel in connection
	with the closing of the transactions contemplated by this Declaration).
	     (f) The assets of the Trust shall consist of the Trust Property.
	     (g) Legal title to all Trust Property shall be vested at all times in the Institutional Trustee
	(in its capacity as such) and shall be held and administered by the Institutional Trustee and the
	Administrators for the benefit of the Trust in accordance with this Declaration.
	     (h) If the Institutional Trustee or any Holder has instituted any proceeding to enforce any
	right or remedy under this Declaration and such proceeding has been discontinued or abandoned for
	any reason, or has been determined adversely to the Institutional Trustee or to such Holder, then
	and in every such case the Sponsor, the Institutional Trustee and the Holders shall, subject to any
	determination in such proceeding, be restored severally and respectively to their former positions
	hereunder, and thereafter all rights and remedies of the Institutional Trustee and the Holders
	shall continue as though no such proceeding had been instituted.
	     
	Section 2.7.
	Prohibition of Actions by the Trust and the Institutional Trustee.
	     (a) The Trust shall not, and the Institutional Trustee shall cause the Trust not to, engage in
	any activity other than as required or authorized by this Declaration. In particular, the Trust
	shall not and the Institutional Trustee shall cause the Trust not to:
	     (i) invest any proceeds received by the Trust from holding the Debentures, but shall
	distribute all such proceeds to Holders of the Securities pursuant to the terms of this
	Declaration and of the Securities;
	     (ii) acquire any assets other than as expressly provided herein;
	     (iii) possess Trust Property for other than a Trust purpose;
	     (iv) make any loans or incur any indebtedness other than loans represented by the
	Debentures;
	     (v) possess any power or otherwise act in such a way as to vary the Trust assets or the
	terms of the Securities in any way whatsoever other than as expressly provided herein;
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	11
 
	 
	     (vi) issue any securities or other evidences of beneficial ownership of, or beneficial
	interest in, the Trust other than the Securities;
	     (vii) carry on any trade or business as that phrase is used in the Code; or
	     (viii) other than as provided in this Declaration (including Annex I), (A) direct the
	time, method and place of exercising any trust or power conferred upon the Debenture Trustee
	with respect to the Debentures, (B) waive any past default that is waivable under the
	Indenture, (C) exercise any right to rescind or annul any declaration that the principal of
	all the Debentures shall be due and payable, or (D) consent to any amendment, modification
	or termination of the Indenture or the Debentures where such consent shall be required
	unless the Trust shall have received a written opinion of counsel to the effect that such
	modification will not cause the Trust to cease to be classified as a grantor trust for
	United States federal income tax purposes.
	     
	Section 2.8.
	Powers and Duties of the Institutional Trustee.
	     (a) The legal title to the Debentures shall be owned by and held of record in the name of the
	Institutional Trustee in trust for the benefit of the Trust and the Holders of the Securities. The
	right, title and interest of the Institutional Trustee to the Debentures shall vest automatically
	in each Person who may hereafter be appointed as Institutional Trustee in accordance with Section
	4.5. Such vesting and cessation of title shall be effective whether or not conveyancing documents
	with regard to the Debentures have been executed and delivered.
	     (b) The Institutional Trustee shall not transfer its right, title and interest in the
	Debentures to the Administrators or to the Delaware Trustee.
	     (c) The Institutional Trustee shall:
	     (i) establish and maintain a segregated non-interest bearing trust account (the
	
	Property Account
	) in the name of and under the exclusive control of the
	Institutional Trustee, and maintained in the Institutional Trustees trust department, on
	behalf of the Holders of the Securities and, upon the receipt of payments of funds made in
	respect of the Debentures held by the Institutional Trustee, deposit such funds into the
	Property Account and make payments, or cause the Paying Agent to make payments, to the
	Holders of the Capital Securities and Holders of the Common Securities from the Property
	Account in accordance with Section 5.1. Funds in the Property Account shall be held
	uninvested until disbursed in accordance with this Declaration;
	     (ii) engage in such ministerial activities as shall be necessary or appropriate to
	effect the redemption of the Capital Securities and the Common Securities to the extent the
	Debentures are redeemed or mature; and
	     (iii) upon written notice of distribution issued by the Administrators in accordance with the
	terms of the Securities, engage in such ministerial activities as shall be necessary or
	appropriate to effect the distribution of the Debentures to Holders of Securities upon the
	occurrence of certain circumstances pursuant to the terms of the Securities.
	     (d) The Institutional Trustee may bring or defend, pay, collect, compromise, arbitrate, resort
	to legal action with respect to, or otherwise adjust claims or demands of or against, the Trust
	which arises out of or in connection with an Event of Default of which a Responsible Officer of the
	Institutional Trustee has actual knowledge or arises out of the Institutional Trustees duties and
	obligations under this Declaration;
	provided
	,
	however
	, that if an Event of Default
	has occurred and is continuing and such event is attributable to the failure of the Debenture
	Issuer to pay interest or principal on the Debentures on the
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	12
 
	 
	date such interest or principal is
	otherwise payable (or in the case of redemption, on the redemption date), then a Holder of the
	Capital Securities may directly institute a proceeding for enforcement of payment to such Holder of
	the principal of or interest on the Debentures having a principal amount equal to the aggregate
	liquidation amount of the Capital Securities of such Holder (a 
	Direct Action
	) on or after
	the respective due date specified in the Debentures. In connection with such Direct Action, the
	rights of the Holders of the Common Securities will be subrogated to the rights of such Holder of
	the Capital Securities to the extent of any payment made by the Debenture Issuer to such Holder of
	the Capital Securities in such Direct Action;
	provided
	,
	however
	, that no Holder of
	the Common Securities may exercise such right of subrogation so long as an Event of Default with
	respect to the Capital Securities has occurred and is continuing.
	     (e) The Institutional Trustee shall continue to serve as a Trustee until either:
	     (i) the Trust has been completely liquidated and the proceeds of the liquidation
	distributed to the Holders of the Securities pursuant to the terms of the Securities and
	this Declaration; or
	     (ii) a Successor Institutional Trustee has been appointed and has accepted that
	appointment in accordance with Section 4.5.
	     (f) The Institutional Trustee shall have the legal power to exercise all of the rights, powers
	and privileges of a Holder of the Debentures under the Indenture and, if an Event of Default occurs
	and is continuing, the Institutional Trustee may, for the benefit of Holders of the Securities,
	enforce its rights as holder of the Debentures subject to the rights of the Holders pursuant to
	this Declaration (including Annex I) and the terms of the Securities.
	     The Institutional Trustee must exercise the powers set forth in this Section 2.8 in a manner
	that is consistent with the purposes and functions of the Trust set out in Section 2.3, and the
	Institutional Trustee shall not take any action that is inconsistent with the purposes and
	functions of the Trust set out in Section 2.3.
	     
	Section 2.9.
	Certain Duties and Responsibilities of the Trustees and Administrators.
	     (a) The Institutional Trustee, before the occurrence of any Event of Default and after the
	curing or waiving of all such Events of Default that may have occurred, shall undertake to perform
	only such duties as are specifically set forth in this Declaration and no implied covenants shall
	be read into this Declaration against the Institutional Trustee. In case an Event of Default has
	occurred (that has not been cured or waived pursuant to Section 6.7), the Institutional Trustee
	shall exercise such of the rights and powers vested in it by this Declaration, and use the same
	degree of care and skill in their exercise, as a prudent person would exercise or use under the
	circumstances in the conduct of his or her own affairs.
	     (b) The duties and responsibilities of the Trustees and the Administrators shall be as
	provided by this Declaration. Notwithstanding the foregoing, no provision of this Declaration
	shall require any Trustee or Administrator to expend or risk their own funds or otherwise incur any
	financial liability in the performance of any of their duties hereunder, or in the exercise of any
	of their rights or powers if it shall have reasonable grounds to believe that repayment of such
	funds or adequate protection against such risk of liability is not reasonably assured to it.
	Whether or not therein expressly so provided, every provision of this Declaration relating to the
	conduct or affecting the liability of or affording protection to the Trustees or Administrators
	shall be subject to the provisions of this Article. Nothing in this Declaration shall be construed
	to relieve an Administrator or a Trustee from liability for its own negligent act, its own
	negligent failure to act, or its own willful misconduct. To the extent that, at law or in equity,
	a Trustee or an Administrator has duties and liabilities relating to the Trust or to the Holders,
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	13
 
	 
	such Trustee or such Administrator shall not be liable to the Trust or to any Holder for such
	Trustees or such Administrators good faith reliance on the provisions of this Declaration. The
	provisions of this Declaration, to the extent that they restrict the duties and liabilities of the
	Administrators or the Trustee otherwise existing at law or in equity, are agreed by the Sponsor and
	the Holders to replace such other duties and liabilities of the Administrators or the Trustees.
	     (c) All payments made by the Institutional Trustee or a Paying Agent in respect of the
	Securities shall be made only from the revenue and proceeds from the Trust Property and only to the
	extent that there shall be sufficient revenue or proceeds from the Trust Property to enable the
	Institutional Trustee or a Paying Agent to make payments in accordance with the terms hereof. Each
	Holder, by its acceptance of a Security, agrees that it will look solely to the revenue and
	proceeds from the Trust Property to the extent legally available for distribution to it as herein
	provided and that the Trustees and the Administrators are not personally liable to it for any
	amount distributable in respect of any Security or for any other liability in respect of any
	Security. This Section 2.9(c) does not limit the liability of the Trustees expressly set forth
	elsewhere in this Declaration.
	     (d) The Institutional Trustee shall not be liable for its own acts or omissions hereunder
	except as a result of its own negligent action, its own negligent failure to act, or its own
	willful misconduct, except that:
	     (i) the Institutional Trustee shall not be liable for any error of judgment made in good
	faith by an Authorized Officer of the Institutional Trustee, unless it shall be proved that
	the Institutional Trustee was negligent in ascertaining the pertinent facts;
	     (ii) the Institutional Trustee shall not be liable with respect to any action taken or
	omitted to be taken by it in good faith in accordance with the direction of the Holders of
	not less than a Majority in liquidation amount of the Capital Securities or the Common
	Securities, as applicable, relating to the time, method and place of conducting any
	proceeding for any remedy available to the Institutional Trustee, or exercising any trust or
	power conferred upon the Institutional Trustee under this Declaration;
	     (iii) the Institutional Trustees sole duty with respect to the custody, safekeeping
	and physical preservation of the Debentures and the Property Account shall be to deal with
	such property in a similar manner as the Institutional Trustee deals with similar property
	for its fiduciary accounts generally, subject to the protections and limitations on
	liability afforded to the Institutional Trustee under this Declaration;
	     (iv) the Institutional Trustee shall not be liable for any interest on any money
	received by it except as it may otherwise agree in writing with the Sponsor; and money held
	by the Institutional Trustee need not be segregated from other funds held by it except in
	relation to the Property Account maintained by the Institutional Trustee pursuant to Section
	2.8(c)(i) and except to the extent otherwise required by law; and
	     (v) the Institutional Trustee shall not be responsible for monitoring the compliance by
	the Administrators or the Sponsor with their respective duties under this Declaration, nor
	shall the Institutional Trustee be liable for any default or misconduct of the
	Administrators or the Sponsor.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	14
 
	 
	     
	Section 2.10.
	Certain Rights of Institutional Trustee
	.
	Subject to the provisions of
	Section 2.9:
	     (a) the Institutional Trustee may conclusively rely and shall fully be protected in acting or
	refraining from acting in good faith upon any resolution, opinion of counsel, certificate, written
	representation of a Holder or transferee, certificate of auditors or any other certificate,
	statement, instrument, opinion, report, notice, request, direction, consent, order, appraisal,
	bond, debenture, note, other evidence of indebtedness or other paper or document believed by it to
	be genuine and to have been signed, sent or presented by the proper party or parties;
	     (b) if (i) in performing its duties under this Declaration, the Institutional Trustee is
	required to decide between alternative courses of action, (ii) in construing any of the provisions
	of this Declaration, the Institutional Trustee finds the same ambiguous or inconsistent with any
	other provisions contained herein,
	or (iii) the Institutional Trustee is unsure of the application of any provision of this
	Declaration, then, except as to any matter as to which the Holders of Capital Securities are
	entitled to vote under the terms of this Declaration, the Institutional Trustee may deliver a
	notice to the Sponsor requesting the Sponsors written instructions as to the course of action to
	be taken and the Institutional Trustee shall take such action, or refrain from taking such action,
	as the Institutional Trustee shall be instructed in writing, in which event the Institutional
	Trustee shall have no liability except for its own negligence or willful misconduct;
	     (c) any direction or act of the Sponsor or the Administrators contemplated by this Declaration
	shall be sufficiently evidenced by an Officers Certificate;
	     (d) whenever in the administration of this Declaration, the Institutional Trustee shall deem
	it desirable that a matter be proved or established before undertaking, suffering or omitting any
	action hereunder, the Institutional Trustee (unless other evidence is herein specifically
	prescribed) may request and conclusively rely upon an Officers Certificate as to factual matters
	which, upon receipt of such request, shall be promptly delivered by the Sponsor or the
	Administrators;
	     (e) the Institutional Trustee shall have no duty to see to any recording, filing or
	registration of any instrument (including any financing or continuation statement or any filing
	under tax or securities laws) or any rerecording, refiling or reregistration thereof;
	     (f) the Institutional Trustee may consult with counsel of its selection (which counsel may be
	counsel to the Sponsor or any of its Affiliates) and the advice of such counsel shall be full and
	complete authorization and protection in respect of any action taken, suffered or omitted by it
	hereunder in good faith and in reliance thereon and in accordance with such advice; the
	Institutional Trustee shall have the right at any time to seek instructions concerning the
	administration of this Declaration from any court of competent jurisdiction;
	     (g) the Institutional Trustee shall be under no obligation to exercise any of the rights or
	powers vested in it by this Declaration at the request or direction of any of the Holders pursuant
	to this Declaration, unless such Holders shall have offered to the Institutional Trustee security
	or indemnity reasonably satisfactory to it against the costs, expenses and liabilities which might
	be incurred by it in compliance with such request or direction;
	provided
	, that nothing
	contained in this Section 2.10(g) shall be taken to relieve the Institutional Trustee, subject to
	Section 2.9(b), upon the occurrence of an Event of Default (that has not been cured or waived
	pursuant to Section 6.7), to exercise such of the rights and powers vested in it by this
	Declaration, and use the same degree of care and skill in their exercise, as a prudent person would
	exercise or use under the circumstances in the conduct of his or her own affairs;
	     (h) the Institutional Trustee shall not be bound to make any investigation into the facts or
	matters stated in any resolution, certificate, statement, instrument, opinion, report, notice,
	request, consent, order,
	approval, bond, debenture, note or other evidence of indebtedness or other paper or
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	15
 
	 
	document,
	unless requested in writing to do so by one or more Holders, but the Institutional Trustee may make
	such further inquiry or investigation into such facts or matters as it may see fit;
	     (i) the Institutional Trustee may execute any of the trusts or powers hereunder or perform any
	duties hereunder either directly or by or through its agents or attorneys and the Institutional
	Trustee shall not be responsible for any misconduct or negligence on the part of or for the
	supervision of, any such agent or attorney appointed with due care by it hereunder;
	     (j) whenever in the administration of this Declaration the Institutional Trustee shall deem it
	desirable to receive instructions with respect to enforcing any remedy or right or taking any other
	action hereunder the Institutional Trustee (i) may request instructions from the Holders of the
	Capital Securities which instructions may only be given by the Holders of the same proportion in
	liquidation amount of the Capital Securities as would be entitled to direct the Institutional
	Trustee under the terms of the Capital Securities in respect of such remedy, right or action, (ii)
	may refrain from enforcing such remedy or right or taking such other action until such instructions
	are received, and (iii) shall be fully protected in acting in accordance with such instructions;
	     (k) except as otherwise expressly provided in this Declaration, the Institutional Trustee
	shall not be under any obligation to take any action that is discretionary under the provisions of
	this Declaration;
	     (l) when the Institutional Trustee incurs expenses or renders services in connection with a
	Bankruptcy Event, such expenses (including the fees and expenses of its counsel) and the
	compensation for such services are intended to constitute expenses of administration under any
	bankruptcy law or law relating to creditors rights generally;
	     (m) the Institutional Trustee shall not be charged with knowledge of an Event of Default
	unless a Responsible Officer of the Institutional Trustee obtains actual knowledge of such event or
	the Institutional Trustee receives written notice of such event from any Holder, the Sponsor or the
	Debenture Trustee;
	     (n) any action taken by the Institutional Trustee or its agents hereunder shall bind the Trust
	and the Holders of the Securities, and the signature of the Institutional Trustee or its agents
	alone shall be sufficient and effective to perform any such action and no third party shall be
	required to inquire as to the authority of the Institutional Trustee to so act or as to its
	compliance with any of the terms and provisions of this Declaration, both of which shall be
	conclusively evidenced by the Institutional Trustees or its agents taking such action; and
	     (o) no provision of this Declaration shall be deemed to impose any duty or obligation on the
	Institutional Trustee to perform any act or acts or exercise any right, power, duty or obligation
	conferred
	or imposed on it, in any jurisdiction in which it shall be illegal, or in which the
	Institutional Trustee shall be unqualified or incompetent in accordance with applicable law, to
	perform any such act or acts, or to exercise any such right, power, duty or obligation. No
	permissive power or authority available to the Institutional Trustee shall be construed to be a
	duty.
	     
	Section 2.11.
	Delaware Trustee
	. Notwithstanding any other provision of this
	Declaration other than Section 4.1, the Delaware Trustee shall not be entitled to exercise any
	powers, nor shall the Delaware Trustee have any of the duties and responsibilities of any of the
	Trustees or the Administrators described in this Declaration (except as may be required under the
	Statutory Trust Act). Except as set forth in Section 4.1, the Delaware Trustee shall be a Trustee
	for the sole and limited purpose of fulfilling the requirements of § 3807 of the Statutory Trust
	Act.
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	16
 
	 
	     
	Section 2.12.
	Execution of Documents
	.
	Unless otherwise determined in writing by the
	Institutional Trustee, and except as otherwise required by the Statutory Trust Act, the
	Institutional Trustee, or any one or more of the Administrators, as the case may be, is authorized
	to execute on behalf of the Trust any documents that the Trustees or the Administrators, as the
	case may be, have the power and authority to execute pursuant to Section 2.6.
	     
	Section 2.13.
	Not Responsible for Recitals or Issuance of Securities
	.
	The recitals
	contained in this Declaration and the Securities shall be taken as the statements of the Sponsor,
	and the Trustees do not assume any responsibility for their correctness. The Trustees make no
	representations as to the value or condition of the property of the Trust or any part thereof. The
	Trustees make no representations as to the validity or sufficiency of this Declaration, the
	Debentures or the Securities.
	     
	Section 2.14.
	Duration of Trust
	.
	The Trust, unless earlier dissolved pursuant to the
	provisions of Article VII hereof, shall be in existence for 35 years from the Closing Date.
	     
	Section 2.15.
	Mergers.
	     (a) The Trust may not consolidate, amalgamate, merge with or into, or be replaced by, or
	convey, transfer or lease its properties and assets substantially as an entirety to any corporation
	or other body, except as described in Section 2.15(b) and (c) and except in connection with the
	liquidation of the Trust and the distribution of the Debentures to Holders of Securities pursuant
	to Section 7.1(a)(iv) of the Declaration or Section 4 of Annex I.
	     (b) The Trust may, with the consent of the Institutional Trustee and without the consent of
	the Holders of the Capital Securities, consolidate, amalgamate, merge with or into, or be replaced
	by a trust organized as such under the laws of any state; provided that:
	     (i) if the Trust is not the surviving entity, such successor entity (the 
	Successor
	Entity
	) either:
	     (A) expressly assumes all of the obligations of the Trust under the Securities;
	or
	     (B) substitutes for the Securities other securities having substantially the
	same terms as the Securities (the 
	Successor Securities
	) so that the
	Successor Securities rank the same as the Securities rank with respect to
	Distributions and payments upon Liquidation, redemption and otherwise;
	     (ii) the Sponsor expressly appoints a trustee of the Successor Entity that possesses
	substantially the same powers and duties as the Institutional Trustee as the Holder of the
	Debentures;
	     (iii) such merger, consolidation, amalgamation or replacement does not adversely affect
	the rights, preferences and privileges of the Holders of the Securities (including any
	Successor Securities) in any material respect;
	     (iv) the Institutional Trustee receives written confirmation from Moodys Investor
	Services, Inc. and any other nationally recognized statistical rating organization that
	rates securities issued by the initial purchaser of the Capital Securities that it will not
	reduce or withdraw the rating of any such securities because of such merger, conversion,
	consolidation, amalgamation or replacement;
	     (v) such Successor Entity has a purpose substantially identical to that of the Trust;
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	17
 
	 
	     (vi) prior to such merger, consolidation, amalgamation or replacement, the Trust has
	received an opinion of a nationally recognized independent counsel to the Trust experienced
	in such matters to the effect that:
	     (A) such merger, consolidation, amalgamation or replacement does not adversely
	affect the rights, preferences and privileges of the Holders of the Securities
	(including any Successor Securities) in any material respect;
	     (B) following such merger, consolidation, amalgamation or replacement, neither the
	Trust nor the Successor Entity will be required to register as an Investment
	Company; and
	     (C) following such merger, consolidation, amalgamation or replacement, the
	Trust (or the Successor Entity) will continue to be classified as a grantor trust
	for United States federal income tax purposes;
	     (vii) the Sponsor guarantees the obligations of such Successor Entity under the
	Successor Securities at least to the extent provided by the Guarantee;
	     (viii) the Sponsor owns 100% of the common securities of any Successor Entity; and
	     (ix) prior to such merger, consolidation, amalgamation or replacement, the
	Institutional Trustee shall have received an Officers Certificate of the Administrators and
	an opinion of counsel, each to the effect that all conditions precedent under this Section
	2.15(b) to such transaction have been satisfied.
	     (c) Notwithstanding Section 2.15(b), the Trust shall not, except with the consent of Holders
	of 100% in aggregate liquidation amount of the Securities, consolidate, amalgamate, merge with or
	into, or be replaced by any other entity or permit any other entity to consolidate, amalgamate,
	merge with or into, or replace it if such consolidation, amalgamation, merger or replacement would
	cause the Trust or Successor Entity to be classified as other than a grantor trust for United
	States federal income tax purposes.
	ARTICLE III
	SPONSOR
	     
	Section 3.1.
	Sponsors Purchase of Common Securities
	.
	On the Closing Date, the
	Sponsor will purchase all of the Common Securities issued by the Trust in an amount at least equal
	to 3% of the capital of the Trust, at the same time as the Capital Securities are sold.
	     
	Section 3.2.
	Responsibilities of the Sponsor
	.
	In connection with the issue and sale
	of the Capital Securities, the Sponsor shall have the exclusive right and responsibility to engage
	in, or direct the Administrators to engage in, the following activities:
	     (a) to determine the States in which to take appropriate action to qualify the Trust or to qualify
	or register for sale all or part of the Capital Securities and to do any and all such acts, other
	than actions which must be taken by the Trust, and advise the Trust of actions it must take, and
	prepare for execution and filing any documents to be executed and filed by the Trust, as the
	Sponsor deems necessary or advisable in order to comply with the applicable laws of any such
	States, to protect the limited liability of the Holders of the Capital Securities or to enable the
	Trust to effect the purposes for which it was created; and
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
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	     (b) to negotiate the terms of and/or execute on behalf of the Trust, the Placement Agreement
	and other related agreements providing for the sale of the Capital Securities.
	     
	Section 3.3.
	Expenses
	. In connection with the offering, sale and issuance of the
	Debentures to the Trust and in connection with the sale of the Securities by the Trust, the
	Sponsor, in its capacity as Debenture Issuer, shall:
	     (a) pay all reasonable costs and expenses owing to the Debenture Trustee pursuant to Section
	6.6 of the Indenture;
	     (b) be responsible for and shall pay all debts and obligations (other than with respect to the
	Securities) and all costs and expenses of the Trust, the offering, sale and issuance of the
	Securities (including fees to the placement agents in connection therewith), the costs and expenses
	(including reasonable counsel fees and expenses) of the Institutional Trustee and the
	Administrators, the costs and expenses relating to the operation of the Trust, including, without
	limitation, costs and expenses of accountants, attorneys, statistical or bookkeeping services,
	expenses for printing and engraving and computing or accounting equipment, Paying Agents,
	Registrars, Transfer Agents, duplicating, travel and telephone and other telecommunications
	expenses and costs and expenses incurred in connection with the acquisition, financing, and
	disposition of Trust assets and the enforcement by the Institutional Trustee of the rights of the
	Holders (for purposes of clarification, this Section 3.3(b) does not contemplate the payment by the
	Sponsor of acceptance or annual administration fees owing to the Trustees pursuant to the services
	to be provided by the Trustees under this Declaration or the fees and expenses of the Trustees
	counsel in connection with the closing of the transactions contemplated by this Declaration); and
	     (c) pay any and all taxes (other than United States withholding taxes attributable to the
	Trust or its assets) and all liabilities, costs and expenses with respect to such taxes of the
	Trust.
	     The Sponsors obligations under this Section 3.3 shall be for the benefit of, and shall be
	enforceable by, any Person to whom such debts, obligations, costs, expenses and taxes are owed (a
	
	Creditor
	) whether or not such Creditor has received notice hereof. Any such Creditor may
	enforce the Sponsors obligations under this Section 3.3 directly against the Sponsor and the
	Sponsor irrevocably waives any right or remedy to require that any such Creditor take any action
	against the Trust or any other Person before proceeding against the Sponsor. The Sponsor agrees to
	execute such additional agreements as may be necessary or desirable in order to give full effect to
	the provisions of this Section 3.3.
	     
	Section 3.4.
	Right to Proceed
	.
	The Sponsor acknowledges the rights of Holders to institute a Direct Action as set forth in
	Section 2.8(d) hereto.
	ARTICLE IV
	INSTITUTIONAL TRUSTEE AND ADMINISTRATORS
	     
	Section 4.1.
	Number of Trustees
	. The number of Trustees shall initially be two, and;
	     (a) at any time before the issuance of any Securities, the Sponsor may, by written instrument,
	increase or decrease the number of Trustees; and
	     (b) after the issuance of any Securities, the number of Trustees may be increased or decreased
	by vote of the Holder of a Majority in liquidation amount of the Common Securities voting as a
	class at a meeting of the Holder of the Common Securities;
	provided
	,
	however
	, that
	there shall be a Delaware Trustee if required by Section 4.2; and there shall always be one Trustee
	who shall be the Institutional Trustee, and such Trustee may also serve as Delaware Trustee if it
	meets the applicable
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	requirements, in which case Section 2.11 shall have no application to such
	entity in its capacity as Institutional Trustee.
	     
	Section 4.2.
	Delaware Trustee; Eligibility
	.
	     (a) If required by the Statutory Trust Act, one Trustee (the Delaware Trustee) shall be:
	     (i) a natural person at least 21 years of age who is a resident of the State of
	Delaware; or
	     (ii) if not a natural person, an entity which is organized under the laws of the United
	States or any state thereof or the District of Columbia, has its principal place of business
	in the State of Delaware, and otherwise meets the requirements of applicable law, including
	§ 3807 of the Statutory Trust Act.
	     (b) The initial Delaware Trustee shall be Wilmington Trust Company.
	     
	Section 4.3.
	Institutional Trustee; Eligibility.
	     (a) There shall at all times be one Trustee which shall:
	     (i) not be an Affiliate of the Sponsor;
	     (ii) not offer or provide credit or credit enhancement to the Trust; and
	     (iii) be a banking corporation or trust company organized and doing business under the
	laws of the United States of America or any state thereof or the District of Columbia,
	authorized under such laws to exercise corporate trust powers, having a combined capital and
	surplus of at least 50 million U.S. dollars ($50,000,000.00), and subject to supervision or
	examination by Federal, state, or District of Columbia authority. If such corporation
	publishes reports of condition at least annually, pursuant to law or to the requirements of
	the supervising or examining authority referred to above, then for the purposes of this
	Section 4.3(a)(iii), the combined capital and surplus of such corporation shall be deemed to
	be its combined capital and surplus as set forth in its most recent report of condition so
	published.
	     (b) If at any time the Institutional Trustee shall cease to be eligible to so act under
	Section 4.3(a), the Institutional Trustee shall immediately resign in the manner and with the
	effect set forth in Section 4.5.
	     (c) If the Institutional Trustee has or shall acquire any conflicting interest within the
	meaning of Section 310(b) of the Trust Indenture Act of 1939, as amended, the Institutional Trustee
	shall either eliminate such interest or resign, to the extent and in the manner provided by, and
	subject to this Declaration.
	     (d) The initial Institutional Trustee shall be Wilmington Trust Company.
	     
	Section 4.4.
	Administrators
	.
	Each Administrator shall be a U.S. Person, 21 years of
	age or older and authorized to bind the Sponsor. The initial Administrators shall be Joseph M.
	Grant and Dwain Howard. There shall at all times be at least one Administrator. Except where a
	requirement for action by a specific number of Administrators is expressly set forth in this
	Declaration and except with respect to any action the taking of which is the subject of a meeting
	of the Administrators, any action required or permitted to be taken by the Administrators may be
	taken by, and any power of the Administrators may be exercised by, or with the consent of, any one
	such Administrator.
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	Section 4.5.
	Appointment, Removal and Resignation of Trustees and Administrators
	.
	     (a) No resignation or removal of any Trustee (the Relevant Trustee) and no appointment of a
	successor Trustee pursuant to this Article shall become effective until the acceptance of
	appointment by the successor Trustee in accordance with the applicable requirements of this Section
	4.5.
	     (b) Subject to Section 4.5(a), a Relevant Trustee may resign at any time by giving written notice
	thereof to the Holders of the Securities and by appointing a successor Relevant Trustee. Upon the
	resignation of the Institutional Trustee, the Institutional Trustee shall appoint a successor by
	requesting from at least three Persons meeting the eligibility requirements their expenses and
	charges to serve as the successor Institutional Trustee on a form provided by the Administrators,
	and selecting the Person who agrees to the lowest expense and charges (the Successor Institutional
	Trustee). If the instrument of acceptance by the successor Relevant Trustee required by this
	Section 4.5 shall not have been delivered to the Relevant Trustee within 60 days after the giving
	of such notice of resignation or delivery of the instrument of removal, the Relevant Trustee may
	petition, at the expense of the Trust, any federal, state or District of Columbia court of
	competent jurisdiction for the appointment of a successor Relevant Trustee. Such court may
	thereupon, after prescribing such notice, if any, as it may deem proper, appoint a Relevant
	Trustee. The Institutional Trustee shall have no liability for the selection of such successor
	pursuant to this Section 4.5.
	     (c) Unless an Event of Default shall have occurred and be continuing, any Trustee may be
	removed at any time by an act of the Holders of a Majority in liquidation amount of the Common
	Securities. If any Trustee shall be so removed, the Holders of the Common Securities, by act of
	the Holders of a Majority in liquidation amount of the Common Securities delivered to the Relevant
	Trustee, shall promptly appoint a successor Relevant Trustee, and such successor Trustee shall
	comply with the applicable requirements of this Section 4.5. If an Event of Default shall have
	occurred and be continuing, the Institutional Trustee or the Delaware Trustee, or both of them, may
	be removed by the act of the Holders of a Majority in liquidation amount of the Capital Securities,
	delivered to the Relevant Trustee (in its individual capacity and on behalf of the Trust). If any
	Trustee shall be so removed, the Holders of Capital Securities, by act of the Holders of a Majority
	in liquidation amount of the Capital Securities then outstanding delivered to the Relevant Trustee,
	shall promptly appoint a successor Relevant Trustee or Trustees, and such successor Trustee shall
	comply with the applicable requirements of this Section 4.5. If no successor Relevant Trustee
	shall have been so appointed by the Holders of a Majority in liquidation amount of the Capital
	Securities and accepted appointment in the manner required by this Section 4.5 within 30 days after
	delivery of an instrument of removal, the Relevant Trustee or any Holder who has been a Holder of
	the Securities for at least six months may, on behalf of himself and all others similarly situated,
	petition any federal, state or District of Columbia court of competent jurisdiction for the
	appointment of a successor Relevant Trustee. Such court may thereupon, after prescribing such
	notice, if any, as it may deem proper, appoint a successor Relevant Trustee or Trustees.
	     (d) The Institutional Trustee shall give notice of each resignation and each removal of a
	Trustee and each appointment of a successor Trustee to all Holders and to the Sponsor. Each notice
	shall include the name of the successor Relevant Trustee and the address of its Corporate Trust
	Office if it is the Institutional Trustee.
	     (e) Notwithstanding the foregoing or any other provision of this Declaration, in the event a
	Delaware Trustee who is a natural person dies or is adjudged by a court to have become incompetent
	or incapacitated, the vacancy created by such death, incompetence or incapacity may be filled by
	the Institutional Trustee following the procedures in this Section 4.5 (with the successor being a
	Person who satisfies the eligibility requirement for a Delaware Trustee set forth in this
	Declaration) (the Successor Delaware Trustee).
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	     (f) In case of the appointment hereunder of a successor Relevant Trustee, the retiring
	Relevant Trustee and each successor Relevant Trustee with respect to the Securities shall execute
	and deliver an amendment hereto wherein each successor Relevant Trustee shall accept such
	appointment and which (a) shall contain such provisions as shall be necessary or desirable to
	transfer and confirm to, and to vest in, each successor Relevant Trustee all the rights, powers,
	trusts and duties of the retiring Relevant Trustee with respect to the Securities and the Trust and
	(b) shall add to or change any of the provisions of this Declaration as shall be necessary to
	provide for or facilitate the administration of the Trust by more than one Relevant Trustee, it
	being understood that nothing herein or in such amendment shall constitute such Relevant Trustees
	co-trustees and upon the execution and delivery of such amendment the resignation or removal of the
	retiring Relevant Trustee shall become effective to the extent provided therein and each such
	successor Relevant Trustee, without any further act, deed or conveyance, shall become vested with
	all the rights, powers, trusts and duties of the retiring Relevant Trustee; but, on request of the
	Trust or any successor Relevant Trustee, such retiring Relevant Trustee shall duly assign, transfer
	and deliver to such successor Relevant Trustee all Trust Property, all proceeds thereof and money
	held by such retiring Relevant Trustee hereunder with respect to the Securities and the Trust
	subject to the payment of all unpaid fees, expenses and indemnities of such retiring Relevant
	Trustee.
	     (g) No Institutional Trustee or Delaware Trustee shall be liable for the acts or omissions to
	act of any Successor Institutional Trustee or Successor Delaware Trustee, as the case may be.
	     (h) The Holders of the Capital Securities will have no right to vote to appoint, remove or
	replace the Administrators, which voting rights are vested exclusively in the Holders of the Common
	Securities.
	     (i) Any successor Delaware Trustee shall file an amendment to the Certificate of Trust with
	the Secretary of State of the State of Delaware identifying the name and principal place of
	business of such Delaware Trustee in the State of Delaware.
	     
	Section 4.6.
	Vacancies Among Trustees
	. If a Trustee ceases to hold office for any
	reason and the number of Trustees is not reduced pursuant to Section 4.1, a vacancy shall occur. A
	resolution certifying the existence of such vacancy by the Trustees or, if there are more than two,
	a majority of the Trustees, shall be conclusive evidence of the existence of such vacancy. The
	vacancy shall be filled with a Trustee appointed in accordance with Section 4.5.
	     
	Section 4.7.
	Effect of Vacancies
	.
	The death, resignation, retirement, removal,
	bankruptcy, dissolution, liquidation, incompetence or incapacity to perform the duties of a Trustee
	shall not operate to dissolve, terminate or annul the Trust or terminate this Declaration.
	Whenever a vacancy in the number of Trustees shall occur, until such vacancy is filled by the
	appointment of a Trustee in accordance with Section 4.5, the Institutional Trustee shall have all
	the powers granted to the Trustees and shall discharge all the duties imposed upon the Trustees by
	this Declaration.
	     
	Section 4.8.
	Meetings of the Trustees and the Administrators
	.
	Meetings of the
	Administrators shall be held from time to time upon the call of an Administrator. Regular meetings
	of the Administrators may be held in person in the United States or by telephone, at a place (if
	applicable) and time fixed by resolution of the Administrators. Notice of any in-person meetings
	of the Trustees with the Administrators or meetings of the Administrators shall be hand delivered
	or otherwise delivered in writing (including by facsimile, with a hard copy by overnight courier)
	not less than 48 hours before such meeting. Notice of any telephonic meetings of the Trustees with
	the Administrators or meetings of the Administrators or any committee thereof shall be hand
	delivered or otherwise delivered in writing (including by facsimile, with a hard copy by overnight
	courier) not less than 24 hours before a meeting. Notices shall contain a brief statement of the
	time, place and anticipated purposes of the meeting. The presence (whether in person or by
	telephone) of a Trustee or an Administrator, as the case may be, at a
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	meeting shall constitute a
	waiver of notice of such meeting except where the Trustee or an Administrator, as the case may be,
	attends a meeting for the express purpose of objecting to the transaction of any activity on the
	grounds that the meeting has not been lawfully called or convened. Unless provided otherwise in
	this Declaration, any action of the Trustees or the Administrators, as the case may be, may be
	taken at a meeting by vote of a majority of the Trustees or the Administrators present (whether in
	person or by telephone) and eligible to vote with respect to such matter, provided that a Quorum is
	present, or without a meeting by the unanimous written consent of the Trustees or the
	Administrators. Meetings of the Trustees and the Administrators together shall be held from time
	to time upon the call of any Trustee or an Administrator.
	     
	Section 4.9.
	Delegation of Power.
	     (a) Any Administrator may, by power of attorney consistent with applicable law, delegate to
	any other natural person over the age of 21 that is a U.S. Person his or her power for the purpose
	of executing any documents contemplated in Section 2.6; and
	     (b) the Administrators shall have power to delegate from time to time to such of their number
	the doing of such things and the execution of such instruments either in the name of the Trust or
	the names of the Administrators or otherwise as the Administrators may deem expedient, to the
	extent such delegation is not prohibited by applicable law or contrary to the provisions of the
	Trust, as set forth herein.
	     
	Section 4.10.
	Conversion, Consolidation or Succession to Business
	.
	Any Person into
	which the Institutional Trustee or the Delaware Trustee may be merged or converted or with which it
	may be consolidated, or any Person resulting from any merger, conversion or consolidation to which
	the Institutional Trustee or the Delaware Trustee shall be a party, or any Person succeeding to all
	or substantially all the corporate trust business of the Institutional Trustee or the Delaware
	Trustee shall be the successor of the Institutional Trustee or the Delaware Trustee hereunder,
	provided such Person shall be otherwise qualified and eligible under this Article and,
	provided
	,
	further
	, that such Person shall file an amendment to the Certificate of
	Trust with the Secretary of State of the State of Delaware as contemplated in Section 4.5(i).
	ARTICLE V
	DISTRIBUTIONS
	     
	Section 5.1.
	Distributions
	.
	Holders shall receive Distributions in accordance with
	the applicable terms of the relevant Holders Securities. Distributions shall be made on the
	Capital Securities and the Common Securities in accordance with the preferences set forth in their
	respective terms. If and to the extent that the Debenture Issuer makes a payment of Interest or
	any principal on the Debentures held by the Institutional Trustee, the Institutional Trustee shall
	and is directed, to the extent funds are available for that purpose,
	to make a distribution
	(a
	
	Distribution
	)
	of such amounts to Holders.
	ARTICLE VI
	ISSUANCE OF SECURITIES
	     
	Section 6.1.
	General Provisions Regarding Securities.
	     (a) The Administrators shall, on behalf of the Trust, issue one series of capital securities
	substantially in the form of Exhibit A-1 representing undivided beneficial interests in the assets
	of the Trust having such terms as are set forth in Annex I and one series of common securities
	representing
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	undivided beneficial interests in the assets of the Trust having such terms as are set
	forth in Annex I. The Trust shall issue no securities or other interests in the assets of the
	Trust other than the Capital Securities and the Common Securities. The Capital Securities rank
	pari passu
	to, and payment thereon shall be made Pro Rata with, the Common Securities except that,
	where an Event of Default has occurred and is continuing, the rights of Holders of the Common
	Securities to payment in respect of Distributions and payments upon liquidation, redemption and
	otherwise are subordinated to the rights to payment of the Holders of the Capital Securities as set
	forth in Annex I.
	     (b) The Certificates shall be signed on behalf of the Trust by one or more Administrators.
	Such signature shall be the facsimile or manual signature of any Administrator. In case any
	Administrator of the Trust who shall have signed any of the Securities shall cease to be such
	Administrator before the Certificates so signed shall be delivered by the Trust, such Certificates
	nevertheless may be delivered as though the person who signed such Certificates had not ceased to
	be such Administrator, and any Certificate may be signed on behalf of the Trust by such persons
	who, at the actual date of execution of such Security, shall be an Administrator of the Trust,
	although at the date of the execution and delivery of the Declaration any such person was not such
	an Administrator. A Capital Security shall not be valid until authenticated by the facsimile or
	manual signature of an Authorized Officer of the Institutional Trustee. Such signature shall be
	conclusive evidence that the Capital Security has been authenticated under this Declaration. Upon
	written order of the Trust signed by one Administrator, the Institutional Trustee shall
	authenticate the Capital Securities for original issue. The Institutional Trustee may appoint an
	authenticating agent that is a U.S. Person acceptable to the Trust to authenticate the Capital
	Securities. A Common Security need not be so authenticated.
	     (c) The consideration received by the Trust for the issuance of the Securities shall constitute a
	contribution to the capital of the Trust and shall not constitute a loan to the Trust.
	     (d) Upon issuance of the Securities as provided in this Declaration, the Securities so issued
	shall be deemed to be validly issued, fully paid and, except as provided in Section 9.1(b) with
	respect to the Common Securities, non-assessable.
	     (e) Every Person, by virtue of having become a Holder in accordance with the terms of this
	Declaration, shall be deemed to have expressly assented and agreed to the terms of, and shall be
	bound by, this Declaration and the Guarantee.
	     
	Section 6.2.
	Paying Agent, Transfer Agent and Registrar
	.
	The Trust shall maintain in
	Wilmington, Delaware, an office or agency where the Capital Securities may be presented for payment
	(
	Paying Agent
	), and an office or agency where Securities may be presented for
	registration of transfer or exchange (the 
	Transfer Agent
	). The Trust shall keep or cause
	to be kept at such office or agency a register for the purpose of registering Securities, transfers
	and exchanges of Securities, such register to be held by a registrar (the 
	Registrar
	).
	The Administrators may appoint the Paying Agent, the Registrar and the Transfer Agent and may
	appoint one or more additional Paying Agents or one or more co-Registrars, or one or more
	co-Transfer Agents in such other locations as it shall determine. The term 
	Paying Agent
	
	includes any additional paying agent, the term 
	Registrar
	 includes any additional
	registrar or co-Registrar and the term 
	Transfer Agent
	 includes any additional transfer
	agent. The Administrators may change any Paying Agent, Transfer Agent or Registrar at any time
	without prior notice to any Holder. The Administrators shall notify the Institutional Trustee of
	the name and address of any Paying Agent, Transfer Agent and Registrar not a party to this
	Declaration. The Administrators hereby initially appoint the Institutional Trustee to act as
	Paying Agent, Transfer Agent and Registrar for the Capital Securities and the Common Securities.
	The Institutional Trustee or any of its Affiliates in the United States may act as Paying Agent,
	Transfer Agent or Registrar.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	24
 
	 
	     
	Section 6.3.
	Form and Dating
	.
	The Capital Securities and the Institutional Trustees
	certificate of authentication thereon shall be substantially in the form of Exhibit A-1, and the
	Common Securities shall be substantially in the form of Exhibit A-2, each of which is hereby
	incorporated in and expressly made a part of this Declaration. Certificates may be typed, printed,
	lithographed or engraved or may be produced in any other manner as is reasonably acceptable to the
	Administrators, as conclusively evidenced by their execution thereof. The Securities may have
	letters, numbers, notations or other marks of identification or designation and such legends or
	endorsements required by law, stock exchange rule, agreements to which the Trust is subject if any,
	or usage (provided that any such notation, legend or endorsement is in a form acceptable to the
	Sponsor). The Trust at the direction of the Sponsor shall furnish any such legend not contained in
	Exhibit A-1 to the Institutional Trustee in writing. Each Capital Security shall be dated on or
	before the date of its authentication. The terms and provisions of the Securities set forth in
	Annex I and the forms of Securities set forth in Exhibits A-1 and A-2 are part of the terms of this
	Declaration and to the extent applicable, the Institutional Trustee, the Delaware Trustee, the
	Administrators and the Sponsor, by their execution and delivery of this Declaration, expressly
	agree to such terms and provisions and to be bound thereby. Capital Securities will be issued only
	in blocks having a stated liquidation amount of not less than $100,000.00 and any multiple of
	$1,000.00 in excess thereof.
	     The Capital Securities are being offered and sold by the Trust pursuant to the Placement
	Agreement in definitive, registered form without coupons and with the Restricted Securities Legend.
	     
	Section 6.4.
	Mutilated, Destroyed, Lost or Stolen Certificates.
	     If:
	     (a) any mutilated Certificates should be surrendered to the Registrar, or if the Registrar
	shall receive evidence to its satisfaction of the destruction, loss or theft of any Certificate;
	and
	     (b) there shall be delivered to the Registrar, the Administrators and the Institutional
	Trustee such security or indemnity as may be required by them to keep each of them harmless;
	then, in the absence of notice that such Certificate shall have been acquired by a protected
	purchaser, an Administrator on behalf of the Trust shall execute (and in the case of a Capital
	Security Certificate, the Institutional Trustee shall authenticate) and deliver, in exchange for or
	in lieu of any such mutilated, destroyed, lost or stolen Certificate, a new Certificate of like
	denomination. In connection with the issuance of any new Certificate under this Section 6.4, the
	Registrar or the Administrators may require the payment of a sum sufficient to cover any tax or
	other governmental charge that may be imposed in connection therewith. Any duplicate Certificate
	issued pursuant to this Section shall constitute conclusive evidence of an ownership interest in
	the relevant Securities, as if originally issued, whether or not the lost, stolen or destroyed
	Certificate shall be found at any time.
	     
	Section 6.5.
	Temporary Securities
	.
	Until definitive Securities are ready for
	delivery, the Administrators may prepare and, in the case of the Capital Securities, the
	Institutional Trustee shall authenticate, temporary Securities. Temporary Securities shall be
	substantially in the form of definitive Securities but may have variations that the Administrators
	consider appropriate for temporary Securities. Without unreasonable delay, the Administrators
	shall prepare and, in the case of the Capital Securities, the Institutional Trustee shall
	authenticate, definitive Securities in exchange for temporary Securities.
	     
	Section 6.6.
	Cancellation
	.
	The Administrators at any time may deliver Securities to
	the Institutional Trustee for cancellation. The Registrar shall forward to the Institutional
	Trustee any Securities surrendered to it for registration of transfer, redemption or payment. The
	Institutional Trustee shall promptly cancel all Securities surrendered for registration of
	transfer, payment, replacement or
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	25
 
	 
	cancellation and shall dispose of such canceled Securities as the
	Administrators direct. The Administrators may not issue new Securities to replace Securities that
	have been paid or that have been delivered to the Institutional Trustee for cancellation.
	     
	Section 6.7.
	Rights of Holders; Waivers of Past Defaults.
	     (a) The legal title to the Trust Property is vested exclusively in the Institutional Trustee
	(in its capacity as such) in accordance with Section 2.5, and the Holders shall not have any right
	or title therein other than the undivided beneficial interest in the assets of the Trust conferred
	by their Securities and they
	shall have no right to call for any partition or division of property, profits or rights of
	the Trust except as described below. The Securities shall be personal property giving only the
	rights specifically set forth therein and in this Declaration. The Securities shall have no
	preemptive or similar rights.
	     (b) For so long as any Capital Securities remain outstanding, if upon an Acceleration Event of
	Default, the Debenture Trustee fails or the holders of not less than 25% in principal amount of the
	outstanding Debentures fail to declare the principal of all of the Debentures to be immediately due
	and payable, the Holders of a Majority in liquidation amount of the Capital Securities then
	outstanding shall have the right to make such declaration by a notice in writing to the
	Institutional Trustee, the Sponsor and the Debenture Trustee.
	     At any time after a declaration of acceleration with respect to the Debentures has been made
	and before a judgment or decree for payment of the money due has been obtained by the Debenture
	Trustee as provided in the Indenture, if the Institutional Trustee, subject to the provisions
	hereof, fails to annul any such declaration and waive such default, the Holders of a Majority in
	liquidation amount of the Capital Securities, by written notice to the Institutional Trustee, the
	Sponsor and the Debenture Trustee, may rescind and annul such declaration and its consequences if:
	     (i) the Debenture Issuer has paid or deposited with the Debenture Trustee a sum
	sufficient to pay
	     (A) all overdue installments of interest on all of the Debentures,
	     (B) any accrued Additional Interest on all of the Debentures,
	     (C) the principal of (and premium, if any, on) any Debentures that have become
	due otherwise than by such declaration of acceleration and interest and Additional
	Interest thereon at the rate borne by the Debentures, and
	     (D) all sums paid or advanced by the Debenture Trustee under the Indenture and
	the reasonable compensation, expenses, disbursements and advances of the Debenture
	Trustee and the Institutional Trustee, their agents and counsel; and
	     (ii) all Events of Default with respect to the Debentures, other than the non-payment
	of the principal of the Debentures that has become due solely by such acceleration, have
	been cured or waived as provided in Section 5.7 of the Indenture.
	     The Holders of at least a Majority in liquidation amount of the Capital Securities may, on
	behalf of the Holders of all the Capital Securities, waive any past default under the Indenture or
	any Indenture
	Event of Default, except a default or Indenture Event of Default in the payment of principal
	or interest on the Debentures (unless such default or Indenture Event of Default has been cured and
	a sum sufficient to pay all matured installments of interest and principal due otherwise than by
	acceleration has been deposited with the Debenture Trustee) or a default under the Indenture or an
	Indenture Event of Default in
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	26
 
	 
	respect of a covenant or provision that under the Indenture cannot be
	modified or amended without the consent of the holder of each outstanding Debenture. No such
	rescission shall affect any subsequent default or impair any right consequent thereon.
	     Upon receipt by the Institutional Trustee of written notice declaring such an acceleration, or
	rescission and annulment thereof, by Holders of any part of the Capital Securities, a record date
	shall be established for determining Holders of outstanding Capital Securities entitled to join in
	such notice, which record date shall be at the close of business on the day the Institutional
	Trustee receives such notice. The Holders on such record date, or their duly designated proxies,
	and only such Persons, shall be entitled to join in such notice, whether or not such Holders remain
	Holders after such record date;
	provided,
	that unless such declaration of acceleration, or
	rescission and annulment, as the case may be, shall have become effective by virtue of the
	requisite percentage having joined in such notice prior to the day that is 90 days after such
	record date, such notice of declaration of acceleration, or rescission and annulment, as the case
	may be, shall automatically and without further action by any Holder be canceled and of no further
	effect. Nothing in this paragraph shall prevent a Holder, or a proxy of a Holder, from giving,
	after expiration of such 90-day period, a new written notice of declaration of acceleration, or
	rescission and annulment thereof, as the case may be, that is identical to a written notice that
	has been canceled pursuant to the proviso to the preceding sentence, in which event a new record
	date shall be established pursuant to the provisions of this Section 6.7.
	     (c) Except as otherwise provided in paragraphs (a) and (b) of this Section 6.7, the Holders of
	at least a Majority in liquidation amount of the Capital Securities may, on behalf of the Holders
	of all the Capital Securities, waive any past default or Event of Default and its consequences.
	Upon such waiver, any such default or Event of Default shall cease to exist, and any default or
	Event of Default arising therefrom shall be deemed to have been cured, for every purpose of this
	Declaration, but no such waiver shall extend to any subsequent or other default or Event of Default
	or impair any right consequent thereon.
	ARTICLE VII
	DISSOLUTION AND TERMINATION OF TRUST
	     
	Section 7.1.
	Dissolution and Termination of Trust.
	     (a) The Trust shall dissolve on the first to occur of:
	     (i) unless earlier dissolved, on June 15, 2041, the expiration of the term of the
	Trust;
	     (ii) upon a Bankruptcy Event with respect to the Sponsor, the Trust or the Debenture
	Issuer;
	     (iii) upon the filing of a certificate of dissolution or its equivalent with respect to the
	Sponsor (other than in connection with a merger, consolidation or similar transaction not
	prohibited by the Indenture, this Declaration or the Guarantee, as the case may be) or upon
	the revocation of the charter of the Sponsor and the expiration of 90 days after the date of
	revocation without a reinstatement thereof;
	     (iv) upon the distribution of the Debentures to the Holders of the Securities, upon
	exercise of the right of the Holder of all of the outstanding Common Securities to dissolve
	the Trust as provided in Annex I hereto;
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	27
 
	 
	     (v) upon the entry of a decree of judicial dissolution of the Holder of the Common
	Securities, the Sponsor, the Trust or the Debenture Issuer;
	     (vi) when all of the Securities shall have been called for redemption and the amounts
	necessary for redemption thereof shall have been paid to the Holders in accordance with the
	terms of the Securities; or
	     (vii) before the issuance of any Securities, with the consent of all of the Trustees
	and the Sponsor.
	     (b) As soon as is practicable after the occurrence of an event referred to in Section 7.1(a),
	and after satisfaction of liabilities to creditors of the Trust as required by applicable law,
	including of the Statutory Trust Act, and subject to the terms set forth in Annex I, the
	Institutional Trustee shall terminate the Trust by filing a certificate of cancellation with the
	Secretary of State of the State of Delaware.
	     (c) The provisions of Section 2.9 and Article IX shall survive the termination of the Trust.
	ARTICLE VIII
	TRANSFER OF INTERESTS
	     
	Section 8.1.
	General.
	     (a) Subject to Section 8.1(c), where Capital Securities are presented to the Registrar or a
	co-registrar with a request to register a transfer or to exchange them for an equal number of
	Capital Securities represented by different certificates, the Registrar shall register the transfer
	or make the exchange if its requirements for such transactions are met. To permit registrations of
	transfer and exchanges, the Trust shall issue and the Institutional Trustee shall authenticate
	Capital Securities at the Registrars request.
	     (b) Upon issuance of the Common Securities, the Sponsor shall acquire and retain beneficial
	and record ownership of the Common Securities and for so long as the Securities remain outstanding,
	and to the fullest extent permitted by applicable law, the Sponsor shall maintain 100% ownership of
	the Common Securities;
	provided
	,
	however
	, that any permitted successor of the
	Sponsor, in its capacity as Debenture Issuer, under the Indenture that is a U.S. Person may succeed
	to the Sponsors ownership of the Common Securities.
	     (c) Capital Securities may only be transferred, in whole or in part, in accordance with the
	terms and conditions set forth in this Declaration and in the terms of the Securities. To the
	fullest extent permitted by applicable law, any transfer or purported transfer of any Security not
	made in accordance with this Declaration shall be null and void and will be deemed to be of no
	legal effect whatsoever and any such transferee shall be deemed not to be the holder of such
	Capital Securities for any purpose, including but not limited to the receipt of Distributions on
	such Capital Securities, and such transferee shall be deemed to have no interest whatsoever in such
	Capital Securities.
	     (d) The Registrar shall provide for the registration of Securities and of transfers of
	Securities, which will be effected without charge but only upon payment (with such indemnity as the
	Registrar may require) in respect of any tax or other governmental charges that may be imposed in
	relation to it. Upon surrender for registration of transfer of any Securities, the Registrar shall
	cause one or more new Securities of the same tenor to be issued in the name of the designated
	transferee or transferees. Every Security surrendered for registration of transfer shall be
	accompanied by a written instrument of transfer in form satisfactory to the Registrar duly executed
	by the Holder or such Holders attorney duly
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	28
 
	 
	authorized in writing. Each Security surrendered for
	registration of transfer shall be canceled by the Institutional Trustee pursuant to Section 6.6. A
	transferee of a Security shall be entitled to the rights and subject to the obligations of a Holder
	hereunder upon the receipt by such transferee of a Security. By acceptance of a Security, each
	transferee shall be deemed to have agreed to be bound by this Declaration.
	     (e) The Trust shall not be required (i) to issue, register the transfer of, or exchange any
	Securities during a period beginning at the opening of business fifteen days before the day of any
	selection of Securities for redemption and ending at the close of business on the earliest date on
	which the relevant notice of redemption is deemed to have been given to all Holders of the
	Securities to be redeemed, or (ii) to register the transfer or exchange of any Security so selected
	for redemption in whole or in part, except the unredeemed portion of any Security being redeemed in
	part.
	     
	Section 8.2.
	Transfer Procedures and Restrictions.
	     (a) The Capital Securities shall bear the Restricted Securities Legend, which shall not be
	removed unless there is delivered to the Trust such satisfactory evidence, which may include an
	opinion of counsel satisfactory to the Institutional Trustee, as may be reasonably required by the
	Trust, that neither the legend nor the restrictions on transfer set forth therein are required to
	ensure that transfers thereof comply with the provisions of the Securities Act. Upon provision of
	such satisfactory evidence, the Institutional
	Trustee, at the written direction of the Trust, shall authenticate and deliver Capital
	Securities that do not bear the legend.
	     (b) Except as permitted by Section 8.2(a), each Capital Security shall bear a legend (the
	
	Restricted Securities Legend
	) in substantially the following form and a Capital Security
	shall not be transferred except in compliance with such legend, unless otherwise determined by the
	Sponsor, upon the advice of counsel expert in securities law, in accordance with applicable law:
	     THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
	AMENDED (THE SECURITIES ACT), ANY STATE SECURITIES LAWS OR ANY OTHER APPLICABLE
	SECURITIES LAW. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY
	BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED
	OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR
	NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND ANY
	APPLICABLE STATE SECURITIES LAWS. THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE
	HEREOF AGREES TO OFFER, SELL OR OTHERWISE TRANSFER THIS SECURITY ONLY (A) TO THE
	SPONSOR OR THE TRUST, (B) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN
	DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) TO A PERSON WHOM THE SELLER
	REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER IN A TRANSACTION MEETING THE
	REQUIREMENTS OF RULE 144A SO LONG AS THIS SECURITY IS ELIGIBLE FOR RESALE PURSUANT
	TO RULE 144A IN ACCORDANCE WITH RULE 144A, (D) TO A NON-U.S. PERSON IN AN OFFSHORE
	TRANSACTION IN ACCORDANCE WITH RULE 903 OR RULE 904 (AS APPLICABLE) OF REGULATION S
	UNDER THE SECURITIES ACT, (E) TO AN INSTITUTIONAL ACCREDITED INVESTOR WITHIN THE
	MEANING OF SUBPARAGRAPH (A) OF RULE 501 UNDER THE SECURITIES ACT THAT IS ACQUIRING
	THIS CAPITAL SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN
	INSTITUTIONAL ACCREDITED INVESTOR, FOR INVESTMENT PURPOSES AND NOT WITH A
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	29
 
	 
	VIEW TO,
	OR FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE
	SECURITIES ACT, OR (F) PURSUANT TO ANY OTHER AVAILABLE EXEMPTION FROM THE
	REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE SPONSORS AND THE
	TRUSTS RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER TO REQUIRE THE DELIVERY OF
	AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH
	OF THEM IN ACCORDANCE WITH THE DECLARATION OF TRUST, A COPY OF WHICH MAY BE OBTAINED
	FROM THE SPONSOR OR THE TRUST. HEDGING TRANSACTIONS INVOLVING THIS SECURITY MAY NOT
	BE CONDUCTED UNLESS IN COMPLIANCE WITH THE SECURITIES ACT.
	     THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF ALSO AGREES, REPRESENTS
	AND WARRANTS THAT IT IS NOT AN EMPLOYEE BENEFIT, INDIVIDUAL RETIREMENT ACCOUNT OR
	OTHER PLAN OR ARRANGEMENT SUBJECT TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME
	SECURITY ACT OF 1974, AS AMENDED (ERISA), OR SECTION 4975
	OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE CODE) (EACH A PLAN),
	OR AN ENTITY WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF ANY PLANS
	INVESTMENT IN THE ENTITY, AND NO PERSON INVESTING PLAN ASSETS OF ANY PLAN MAY
	ACQUIRE OR HOLD THE SECURITIES OR ANY INTEREST THEREIN, UNLESS SUCH PURCHASER OR
	HOLDER IS ELIGIBLE FOR EXEMPTIVE RELIEF AVAILABLE UNDER U.S. DEPARTMENT OF LABOR
	PROHIBITED TRANSACTION CLASS EXEMPTION 96-23, 95-60, 91-38, 90-1 OR 84-14 OR ANOTHER
	APPLICABLE EXEMPTION OR ITS PURCHASE AND HOLDING OF THIS SECURITY IS NOT PROHIBITED
	BY SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE WITH RESPECT TO SUCH PURCHASE OR
	HOLDING. ANY PURCHASER OR HOLDER OF THE SECURITIES OR ANY INTEREST THEREIN WILL BE
	DEEMED TO HAVE REPRESENTED BY ITS PURCHASE AND HOLDING THEREOF THAT EITHER (i) IT IS
	NOT AN EMPLOYEE BENEFIT PLAN WITHIN THE MEANING OF SECTION 3(3) OF ERISA, OR A PLAN
	TO WHICH SECTION 4975 OF THE CODE IS APPLICABLE, A TRUSTEE OR OTHER PERSON ACTING ON
	BEHALF OF AN EMPLOYEE BENEFIT PLAN OR PLAN, OR ANY OTHER PERSON OR ENTITY USING THE
	ASSETS OF ANY EMPLOYEE BENEFIT PLAN OR PLAN TO FINANCE SUCH PURCHASE, OR (ii) SUCH
	PURCHASE WILL NOT RESULT IN A PROHIBITED TRANSACTION UNDER SECTION 406 OF ERISA OR
	SECTION 4975 OF THE CODE FOR WHICH THERE IS NO APPLICABLE STATUTORY OR
	ADMINISTRATIVE EXEMPTION.
	     THIS SECURITY WILL BE ISSUED AND MAY BE TRANSFERRED ONLY IN BLOCKS HAVING A
	LIQUIDATION AMOUNT OF NOT LESS THAN $100,000.00 (100 SECURITIES) AND MULTIPLES OF
	$1,000.00 IN EXCESS THEREOF. ANY ATTEMPTED TRANSFER OF SECURITIES IN A BLOCK HAVING
	A LIQUIDATION AMOUNT OF LESS THAN $100,000.00 SHALL BE DEEMED TO BE VOID AND OF NO
	LEGAL EFFECT WHATSOEVER.
	     THE HOLDER OF THIS SECURITY AGREES THAT IT WILL COMPLY WITH THE FOREGOING
	RESTRICTIONS.
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	30
 
	 
	     (c) To permit registrations of transfers and exchanges, the Trust shall execute and the
	Institutional Trustee shall authenticate Capital Securities at the Registrars request.
	     (d) Registrations of transfers or exchanges will be effected without charge, but only upon
	payment (with such indemnity as the Registrar or the Sponsor may require) in respect of any tax or
	other governmental charge that may be imposed in relation to it.
	     (e) All Capital Securities issued upon any registration of transfer or exchange pursuant to
	the terms of this Declaration shall evidence the same security and shall be entitled to the same
	benefits under this Declaration as the Capital Securities surrendered upon such registration of
	transfer or exchange.
	     
	Section 8.3.
	Deemed Security Holders
	.
	The Trust, the Administrators, the Trustees, the Paying Agent, the Transfer Agent or the
	Registrar may treat the Person in whose name any Certificate shall be registered on the books and
	records of the Trust as the sole holder of such Certificate and of the Securities represented by
	such Certificate for purposes of receiving Distributions and for all other purposes whatsoever and,
	accordingly, shall not be bound to recognize any equitable or other claim to or interest in such
	Certificate or in the Securities represented by such Certificate on the part of any Person, whether
	or not the Trust, the Administrators, the Trustees, the Paying Agent, the Transfer Agent or the
	Registrar shall have actual or other notice thereof.
	ARTICLE IX
	LIMITATION OF LIABILITY OF
	HOLDERS OF SECURITIES, INSTITUTIONAL TRUSTEE OR OTHERS
	     
	Section 9.1.
	Liability.
	     (a) Except as expressly set forth in this Declaration, the Guarantee and the terms of the
	Securities, the Sponsor shall not be:
	     (i) personally liable for the return of any portion of the capital contributions (or
	any return thereon) of the Holders of the Securities which shall be made solely from assets
	of the Trust; or
	     (ii) required to pay to the Trust or to any Holder of the Securities any deficit upon
	dissolution of the Trust or otherwise.
	     (b) The Holder of the Common Securities shall be liable for all of the debts and obligations
	of the Trust (other than with respect to the Securities) to the extent not satisfied out of the
	Trusts assets.
	     (c) Pursuant to the Statutory Trust Act, the Holders of the Capital Securities shall be
	entitled to the same limitation of personal liability extended to stockholders of private
	corporations for profit organized under the General Corporation Law of the State of Delaware.
	     
	Section 9.2.
	Exculpation.
	     (a) No Indemnified Person shall be liable, responsible or accountable in damages or otherwise
	to the Trust or any Covered Person for any loss, damage or claim incurred by reason of any act or
	omission performed or omitted by such Indemnified Person in good faith on behalf of the Trust and
	in a manner such Indemnified Person reasonably believed to be within the scope of the authority
	conferred on such Indemnified Person by this Declaration or by law, except that an Indemnified
	Person shall be
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	31
 
	 
	liable for any such loss, damage or claim incurred by reason of such Indemnified
	Persons negligence or willful misconduct with respect to such acts or omissions.
	     (b) An Indemnified Person shall be fully protected in relying in good faith upon the records
	of the Trust and upon such information, opinions, reports or statements presented to the Trust by
	any Person as to matters the Indemnified Person reasonably believes are within such other Persons
	professional or expert competence and, if selected by such Indemnified Person, has been selected by
	such Indemnified Person with reasonable care by or on behalf of the Trust, including information,
	opinions, reports or statements as to the value and amount of the assets, liabilities, profits,
	losses, or any other facts pertinent to the existence and amount of assets from which Distributions
	to Holders of Securities might properly be paid.
	     
	Section 9.3.
	Fiduciary Duty.
	     (a) To the extent that, at law or in equity, an Indemnified Person has duties (including
	fiduciary duties) and liabilities relating thereto to the Trust or to any other Covered Person, an
	Indemnified Person acting under this Declaration shall not be liable to the Trust or to any other
	Covered Person for its good faith reliance on the provisions of this Declaration. The provisions
	of this Declaration, to the extent that they restrict the duties and liabilities of an Indemnified
	Person otherwise existing at law or in equity, are agreed by the parties hereto to replace such
	other duties and liabilities of the Indemnified Person.
	     (b) Whenever in this Declaration an Indemnified Person is permitted or required to make a
	decision:
	     (i) in its discretion or under a grant of similar authority, the Indemnified Person
	shall be entitled to consider such interests and factors as it desires, including its own
	interests, and shall have no duty or obligation to give any consideration to any interest of
	or factors affecting the Trust or any other Person; or
	     (ii) in its good faith or under another express standard, the Indemnified Person
	shall act under such express standard and shall not be subject to any other or different
	standard imposed by this Declaration or by applicable law.
	     
	Section 9.4.
	Indemnification.
	     (a) The Sponsor shall indemnify, to the full extent permitted by law, any Indemnified Person
	who was or is a party or is threatened to be made a party to any threatened, pending or completed
	action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an
	action by or in the right of the Trust) arising out of or in connection with the acceptance or
	administration of this Declaration by reason of the fact that he is or was an Indemnified Person
	against expenses (including reasonable attorneys fees and expenses), judgments, fines and amounts
	paid in settlement actually and reasonably incurred by him in connection with such action, suit or
	proceeding if he acted in good faith and in a manner he reasonably believed to be in or not opposed
	to the best interests of the Trust, and, with respect to any criminal action or proceeding, had no
	reasonable cause to believe his conduct was unlawful. The termination of any action, suit or proceeding by judgment, order, settlement, conviction, or
	upon a plea of
	nolo contendere
	or its equivalent, shall not, of itself, create a presumption that
	the Indemnified Person did not act in good faith and in a manner which he reasonably believed to be
	in or not opposed to the best interests of the Trust, and, with respect to any criminal action or
	proceeding, had reasonable cause to believe that his conduct was unlawful.
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	     (b) The Sponsor shall indemnify, to the full extent permitted by law, any Indemnified Person
	who was or is a party or is threatened to be made a party to any threatened, pending or completed
	action or suit by or in the right of the Trust to procure a judgment in its favor arising out of or
	in connection with the acceptance or administration of this Declaration by reason of the fact that
	he is or was an Indemnified Person against expenses (including reasonable attorneys fees and
	expenses) actually and reasonably incurred by him in connection with the defense or settlement of
	such action or suit if he acted in good faith and in a manner he reasonably believed to be in or
	not opposed to the best interests of the Trust;
	provided
	,
	however
	, that no such
	indemnification shall be made in respect of any claim, issue or matter as to which such Indemnified
	Person shall have been adjudged to be liable to the Trust unless and only to the extent that the
	court in which such action or suit was brought shall determine upon application that, despite the
	adjudication of liability but in view of all the circumstances of the case, such person is fairly
	and reasonably entitled to indemnity for such expenses which such court shall deem proper.
	     (c) To the extent that an Indemnified Person shall be successful on the merits or otherwise
	(including dismissal of an action without prejudice or the settlement of an action without
	admission of liability) in defense of any action, suit or proceeding referred to in paragraphs (a)
	and (b) of this Section 9.4, or in defense of any claim, issue or matter therein, he shall be
	indemnified, to the full extent permitted by law, against expenses (including attorneys fees and
	expenses) actually and reasonably incurred by him in connection therewith.
	     (d) Any indemnification of an Administrator under paragraphs (a) and (b) of this Section 9.4
	(unless ordered by a court) shall be made by the Sponsor only as authorized in the specific case
	upon a determination that indemnification of the Indemnified Person is proper in the circumstances
	because he has met the applicable standard of conduct set forth in paragraphs (a) and (b). Such
	determination shall be made (i) by the Administrators by a majority vote of a Quorum consisting of
	such Administrators who were not parties to such action, suit or proceeding, (ii) if such a Quorum
	is not obtainable, or, even if obtainable, if a Quorum of disinterested Administrators so directs,
	by independent legal counsel in a written opinion, or (iii) by the Common Security Holder of the
	Trust.
	     (e) To the fullest extent permitted by law, expenses (including reasonable attorneys fees and
	expenses) incurred by an Indemnified Person in defending a civil, criminal, administrative or
	investigative action, suit or proceeding referred to in paragraphs (a) and (b) of this Section 9.4
	shall be paid by the Sponsor in advance of the final disposition of such action, suit or proceeding
	upon receipt of an undertaking by or on behalf of such Indemnified Person to repay such amount if
	it shall ultimately be determined that he is not entitled to be indemnified by the Sponsor as
	authorized in this Section 9.4. Notwithstanding the foregoing, no advance shall be made by the
	Sponsor if a determination is reasonably and promptly made (i) by the Administrators by a majority
	vote of a Quorum of disinterested Administrators, (ii) if such a Quorum is not obtainable, or, even
	if obtainable, if a quorum of disinterested
	Administrators so directs, by independent legal counsel in a written opinion or (iii) by the
	Common Security Holder of the Trust, that, based upon the facts known to the Administrators,
	counsel or the Common Security Holder at the time such determination is made, such Indemnified
	Person acted in bad faith or in a manner that such Indemnified Person did not believe to be in the
	best interests of the Trust, or, with respect to any criminal proceeding, that such Indemnified
	Person believed or had reasonable cause to believe his conduct was unlawful. In no event shall any
	advance be made in instances where the Administrators, independent legal counsel or the Common
	Security Holder reasonably determine that such Indemnified Person deliberately breached his duty to
	the Trust or its Common or Capital Security Holders.
	     (f) The Trustees, at the sole cost and expense of the Sponsor, retain the right to
	representation by counsel of their own choosing in any action, suit or any other proceeding for
	which they
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	33
 
	 
	are indemnified under paragraphs (a) and (b) of this Section 9.4, without affecting
	their right to indemnification hereunder or waiving any rights afforded to it under this
	Declaration or applicable law.
	     (g) The indemnification and advancement of expenses provided by, or granted pursuant to, the
	other paragraphs of this Section 9.4 shall not be deemed exclusive of any other rights to which
	those seeking indemnification and advancement of expenses may be entitled under any agreement, vote
	of stockholders or disinterested directors of the Sponsor or Capital Security Holders of the Trust
	or otherwise, both as to action in his official capacity and as to action in another capacity while
	holding such office. All rights to indemnification under this Section 9.4 shall be deemed to be
	provided by a contract between the Sponsor and each Indemnified Person who serves in such capacity
	at any time while this Section 9.4 is in effect. Any repeal or modification of this Section 9.4
	shall not affect any rights or obligations then existing.
	     (h) The Sponsor or the Trust may purchase and maintain insurance on behalf of any Person who
	is or was an Indemnified Person against any liability asserted against him and incurred by him in
	any such capacity, or arising out of his status as such, whether or not the Sponsor would have the
	power to indemnify him against such liability under the provisions of this Section 9.4.
	     (i) For purposes of this Section 9.4, references to the Trust shall include, in addition to
	the resulting or surviving entity, any constituent entity (including any constituent of a
	constituent) absorbed in a consolidation or merger, so that any Person who is or was a director,
	trustee, officer or employee of such constituent entity, or is or was serving at the request of
	such constituent entity as a director, trustee, officer, employee or agent of another entity, shall
	stand in the same position under the provisions of this Section 9.4 with respect to the resulting
	or surviving entity as he would have with respect to such constituent entity if its separate
	existence had continued.
	     (j) The indemnification and advancement of expenses provided by, or granted pursuant to, this
	Section 9.4 shall, unless otherwise provided when authorized or ratified, (i) continue as to a
	Person who has ceased to be an Indemnified Person and shall inure to the benefit of the heirs,
	executors and administrators of such a Person; and (ii) survive the termination or expiration of
	this Declaration or the earlier removal or resignation of an Indemnified Person.
	     
	Section 9.5.
	Outside Businesses
	.
	Any Covered Person, the Sponsor, the Delaware
	Trustee and the Institutional Trustee may engage in or possess an interest in other business
	ventures of any nature or description, independently or with others, similar or dissimilar to the
	business of the Trust, and the Trust and the Holders of Securities shall have no rights by virtue
	of this Declaration in and to such independent ventures or the income or profits derived therefrom,
	and the pursuit of any such venture, even if competitive with the business of the Trust, shall not
	be deemed wrongful or improper. None of any Covered Person, the Sponsor, the Delaware Trustee or
	the Institutional Trustee shall be obligated to present any particular investment or other
	opportunity to the Trust even if such opportunity is of a character that, if presented to the
	Trust, could be taken by the Trust, and any Covered Person, the Sponsor, the Delaware Trustee and
	the Institutional Trustee shall have the right to take for its own account (individually or as a
	partner or fiduciary) or to recommend to others any such particular investment or other
	opportunity. Any Covered Person, the Delaware Trustee and the Institutional Trustee may engage or
	be interested in any financial or other transaction with the Sponsor or any Affiliate of the
	Sponsor, or may act as depositary for, trustee or agent for, or act on any committee or body of
	holders of, securities or other obligations of the Sponsor or its Affiliates.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	34
 
	 
	     
	Section 9.6.
	Compensation; Fee
	.
	The Sponsor agrees:
	     (a) to pay to the Trustees from time to time such compensation for all services rendered by
	them hereunder as the parties shall agree from time to time (which compensation shall not be
	limited by any provision of law in regard to the compensation of a trustee of an express trust);
	and
	     (b) except as otherwise expressly provided herein, to reimburse the Trustees upon request for
	all reasonable expenses, disbursements and advances incurred or made by the Trustees in accordance
	with any provision of this Declaration (including the reasonable compensation and the expenses and
	disbursements of their respective agents and counsel), except any such expense, disbursement or
	advance as may be attributable to its negligence, bad faith or willful misconduct.
	     For purposes of clarification, this Section 9.6 does not contemplate the payment by the
	Sponsor of acceptance or annual administration fees owing to the Trustees under this Declaration or
	the fees and expenses of the Trustees counsel in connection with the closing of the transactions
	contemplated by this Declaration.
	     The provisions of this Section 9.6 shall survive the dissolution of the Trust and the
	termination of this Declaration and the removal or resignation of any Trustee.
	     No Trustee may claim any lien or charge on any property of the Trust as a result of any amount
	due pursuant to this Section 9.6.
	ARTICLE X
	ACCOUNTING
	     
	Section 10.1.
	Fiscal Year
	.
	The fiscal year (
	Fiscal Year
	) of the Trust shall be the calendar year, or such other
	year as is required by the Code.
	     
	Section 10.2.
	Certain Accounting Matters
	.
	     (a) At all times during the existence of the Trust, the Administrators shall keep, or cause to
	be kept at the principal office of the Trust in the United States, as defined for purposes of
	Treasury Regulations section 301.7701-7, full books of account, records and supporting documents,
	which shall reflect in reasonable detail each transaction of the Trust. The books of account shall
	be maintained, at the Sponsors expense, in accordance with generally accepted accounting
	principles, consistently applied. The books of account and the records of the Trust shall be
	examined by and reported upon (either separately or as part of the Sponsors regularly prepared
	consolidated financial report) as of the end of each Fiscal Year of the Trust by a firm of
	independent certified public accountants selected by the Administrators.
	     (b) The Administrators shall cause to be duly prepared and delivered to each of the Holders of
	Securities Form 1099 or such other annual United States federal income tax information statement
	required by the Code, containing such information with regard to the Securities held by each Holder
	as is required by the Code and the Treasury Regulations. Notwithstanding any right under the Code
	to deliver any such statement at a later date, the Administrators shall endeavor to deliver all
	such statements within 30 days after the end of each Fiscal Year of the Trust.
	     (c) The Administrators, at the Sponsors expense, shall cause to be duly prepared at the
	principal office of the Sponsor in the United States, as United States is defined in Section
	7701(a)(9) of the Code (or at the principal office of the Trust if the Sponsor has no such
	principal office in the United States), and filed an annual United States federal income tax return
	on a Form 1041 or such other form
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	35
 
	 
	required by United States federal income tax law, and any other
	annual income tax returns required to be filed by the Administrators on behalf of the Trust with
	any state or local taxing authority.
	     
	Section 10.3.
	Banking
	.
	The Trust shall maintain in the United States, as defined for
	purposes of Treasury Regulations section 301.7701-7, one or more bank accounts in the name and for
	the sole benefit of the Trust;
	provided
	,
	however
	, that all payments of funds in
	respect of the Debentures held by the Institutional Trustee shall be made directly to the Property
	Account and no other funds of the Trust shall be deposited in the Property Account. The sole
	signatories for such accounts (including the Property Account) shall be designated by the
	Institutional Trustee.
	     
	Section 10.4.
	Withholding
	.
	The Institutional Trustee or any Paying Agent and the
	Administrators shall comply with all withholding requirements under United States federal, state
	and local law. The Institutional Trustee or any Paying Agent shall request, and each Holder shall
	provide to the Institutional Trustee or any Paying Agent, such forms or certificates as are
	necessary to establish an exemption from withholding with respect to the Holder, and any
	representations and forms as shall reasonably be requested by the Institutional Trustee or any
	Paying Agent to assist it in determining the extent of, and in fulfilling, its
	withholding obligations. The Administrators shall file required forms with applicable
	jurisdictions and, unless an exemption from withholding is properly established by a Holder, shall
	remit amounts withheld with respect to the Holder to applicable jurisdictions. To the extent that
	the Institutional Trustee or any Paying Agent is required to withhold and pay over any amounts to
	any authority with respect to distributions or allocations to any Holder, the amount withheld shall
	be deemed to be a Distribution in the amount of the withholding to the Holder. In the event of any
	claimed overwithholding, Holders shall be limited to an action against the applicable jurisdiction.
	If the amount required to be withheld was not withheld from actual Distributions made, the
	Institutional Trustee or any Paying Agent may reduce subsequent Distributions by the amount of such
	withholding.
	ARTICLE XI
	AMENDMENTS AND MEETINGS
	     
	Section 11.1.
	Amendments.
	     (a) Except as otherwise provided in this Declaration or by any applicable terms of the
	Securities, this Declaration may only be amended by a written instrument approved and executed (i)
	by the Institutional Trustee, or (ii) if the amendment affects the rights, powers, duties,
	obligations or immunities of the Delaware Trustee, by the Delaware Trustee.
	     (b) Notwithstanding any other provision of this Article XI, an amendment may be made, and any
	such purported amendment shall be valid and effective only if:
	     (i) the Institutional Trustee shall have first received
	     (A) an Officers Certificate from each of the Trust and the Sponsor that such
	amendment is permitted by, and conforms to, the terms of this Declaration (including
	the terms of the Securities); and
	     (B) an opinion of counsel (who may be counsel to the Sponsor or the Trust) that
	such amendment is permitted by, and conforms to, the terms of this Declaration
	(including the terms of the Securities); and
	     (ii) the result of such amendment would not be to
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	36
 
	 
	     (A) cause the Trust to cease to be classified for purposes of United States
	federal income taxation as a grantor trust; or
	     (B) cause the Trust to be deemed to be an Investment Company required to be
	registered under the Investment Company Act.
	     (c) Except as provided in Section 11.1(d), (e) or (h), no amendment shall be made, and any
	such purported amendment shall be void and ineffective, unless the Holders of a Majority in
	liquidation amount of the Capital Securities shall have consented to such amendment.
	     (d) In addition to and notwithstanding any other provision in this Declaration, without the
	consent of each affected Holder, this Declaration may not be amended to (i) change the amount or
	timing of any Distribution on the Securities or otherwise adversely affect the amount of any
	Distribution required to be made in respect of the Securities as of a specified date or change any
	conversion or exchange provisions or (ii) restrict the right of a Holder to institute suit for the
	enforcement of any such payment on or after such date.
	     (e) Sections 9.1(b) and 9.1(c) and this Section 11.1 shall not be amended without the consent
	of all of the Holders of the Securities.
	     (f) Article III shall not be amended without the consent of the Holders of a Majority in
	liquidation amount of the Common Securities.
	     (g) The rights of the Holders of the Capital Securities under Article IV to appoint and remove
	Trustees shall not be amended without the consent of the Holders of a Majority in liquidation
	amount of the Capital Securities.
	     (h) This Declaration may be amended by the Institutional Trustee and the Holders of a Majority
	in liquidation amount of the Common Securities without the consent of the Holders of the Capital
	Securities to:
	     (i) cure any ambiguity;
	     (ii) correct or supplement any provision in this Declaration that may be defective or
	inconsistent with any other provision of this Declaration;
	     (iii) add to the covenants, restrictions or obligations of the Sponsor; or
	     (iv) modify, eliminate or add to any provision of this Declaration to such extent as
	may be necessary to ensure that the Trust will be classified for United States federal
	income tax purposes at all times as a grantor trust and will not be required to register as
	an Investment Company (including without limitation to conform to any change in Rule 3a-5,
	Rule 3a-7 or any other applicable rule under the Investment Company Act or written change in
	interpretation or application thereof by any legislative body, court, government agency or
	regulatory authority) which amendment does not have a material adverse effect on the rights,
	preferences or privileges of the Holders of Securities;
	     
	provided
	,
	however
	, that no such modification, elimination or addition referred
	to in clauses (i), (ii), (iii) or (iv) shall adversely affect in any material respect the powers,
	preferences or special rights of Holders of Capital Securities.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	37
 
	 
	     
	Section 11.2.
	Meetings of the Holders of Securities; Action by Written Consent.
	     (a) Meetings of the Holders of any class of Securities may be called at any time by the
	Administrators (or as provided in the terms of the Securities) to consider and act on any matter on
	which Holders of such class of Securities are entitled to act under the terms of this Declaration
	or the terms of the Securities. The Administrators shall call a meeting of the Holders of such
	class if directed to do so by the Holders of at least 10% in liquidation amount of such class of
	Securities. Such direction shall be given by delivering to the Administrators one or more calls in
	a writing stating that the signing Holders of the Securities wish to call a meeting and indicating
	the general or specific purpose for which the meeting is to be called. Any Holders of the
	Securities calling a meeting shall specify in writing the Certificates held by the Holders of the
	Securities exercising the right to call a meeting and only those Securities represented by such
	Certificates shall be counted for purposes of determining whether the required percentage set forth
	in the second sentence of this paragraph has been met.
	     (b) Except to the extent otherwise provided in the terms of the Securities, the following
	provisions shall apply to meetings of Holders of the Securities:
	     (i) notice of any such meeting shall be given to all the Holders of the Securities
	having a right to vote thereat at least 7 days and not more than 60 days before the date of
	such meeting. Whenever a vote, consent or approval of the Holders of the Securities is
	permitted or required under this Declaration, such vote, consent or approval may be given at
	a meeting of the Holders of the Securities. Any action that may be taken at a meeting of
	the Holders of the Securities may be taken without a meeting if a consent in writing setting
	forth the action so taken is signed by the Holders of the Securities owning not less than
	the minimum amount of Securities in liquidation amount that would be necessary to authorize
	or take such action at a meeting at which all Holders of the Securities having a right to
	vote thereon were present and voting. Prompt notice of the taking of action without a
	meeting shall be given to the Holders of the Securities entitled to vote who have not
	consented in writing. The Administrators may specify that any written ballot
	submitted to the Holders of the Securities for the purpose of taking any action without
	a meeting shall be returned to the Trust within the time specified by the Administrators;
	     (ii) each Holder of a Security may authorize any Person to act for it by proxy on all
	matters in which a Holder of Securities is entitled to participate, including waiving notice
	of any meeting, or voting or participating at a meeting. No proxy shall be valid after the
	expiration of 11 months from the date thereof unless otherwise provided in the proxy. Every
	proxy shall be revocable at the pleasure of the Holder of the Securities executing it.
	Except as otherwise provided herein, all matters relating to the giving, voting or validity
	of proxies shall be governed by the General Corporation Law of the State of Delaware
	relating to proxies, and judicial interpretations thereunder, as if the Trust were a
	Delaware corporation and the Holders of the Securities were stockholders of a Delaware
	corporation; each meeting of the Holders of the Securities shall be conducted by the
	Administrators or by such other Person that the Administrators may designate; and
	     (iii) unless the Statutory Trust Act, this Declaration, or the terms of the Securities
	otherwise provides, the Administrators, in their sole discretion, shall establish all other
	provisions relating to meetings of Holders of Securities, including notice of the time,
	place or purpose of any meeting at which any matter is to be voted on by any Holders of the
	Securities, waiver of any such notice, action by consent without a meeting, the
	establishment of a record date, quorum requirements, voting in person or by proxy or any
	other matter with respect to the exercise of any
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	38
 
	 
	such right to vote;
	provided
	,
	however
	, that each meeting shall be conducted in the United States (as that term is
	defined in Treasury Regulations section 301.7701-7).
	ARTICLE XII
	REPRESENTATIONS OF INSTITUTIONAL TRUSTEE AND THE DELAWARE TRUSTEE
	     
	Section 12.1.
	Representations and Warranties of Institutional Trustee
	.
	The initial
	Institutional Trustee represents and warrants to the Trust and to the Sponsor at the date of this
	Declaration, and each Successor Institutional Trustee represents and warrants to the Trust and the
	Sponsor at the time of the Successor Institutional Trustees acceptance of its appointment as
	Institutional Trustee, that:
	     (a) the Institutional Trustee is a Delaware banking corporation with trust powers, duly
	organized and validly existing under the laws of the State of Delaware with trust power and
	authority to execute and deliver, and to carry out and perform its obligations under the terms of,
	this Declaration;
	     (b) the execution, delivery and performance by the Institutional Trustee of this Declaration
	has been duly authorized by all necessary corporate action on the part of the Institutional
	Trustee. This Declaration has been duly executed and delivered by the Institutional Trustee, and
	it constitutes a legal, valid and binding obligation of the Institutional Trustee, enforceable
	against it in accordance with its terms, subject to applicable bankruptcy, reorganization,
	moratorium, insolvency, and other similar laws affecting
	creditors rights generally and to general principles of equity (regardless of whether
	considered in a proceeding in equity or at law);
	     (c) the execution, delivery and performance of this Declaration by the Institutional Trustee
	does not conflict with or constitute a breach of the charter or by-laws of the Institutional
	Trustee; and
	     (d) no consent, approval or authorization of, or registration with or notice to, any state or
	federal banking authority is required for the execution, delivery or performance by the
	Institutional Trustee of this Declaration.
	     
	Section 12.2.
	Representations of the Delaware Trustee
	. The Trustee that acts as
	initial Delaware Trustee represents and warrants to the Trust and to the Sponsor at the date of
	this Declaration, and each Successor Delaware Trustee represents and warrants to the Trust and the
	Sponsor at the time of the Successor Delaware Trustees acceptance of its appointment as Delaware
	Trustee that:
	     (a) if it is not a natural person, the Delaware Trustee is duly organized, validly existing
	and in good standing under the laws of the State of Delaware;
	     (b) if it is not a natural person, the execution, delivery and performance by the Delaware
	Trustee of this Declaration has been duly authorized by all necessary corporate action on the part
	of the Delaware Trustee. This Declaration has been duly executed and delivered by the Delaware
	Trustee, and under Delaware law (excluding any securities laws) constitutes a legal, valid and
	binding obligation of the Delaware Trustee, enforceable against it in accordance with its terms,
	subject to applicable bankruptcy, reorganization, moratorium, insolvency and other similar laws
	affecting creditors rights generally and to general principles of equity and the discretion of the
	court (regardless of whether considered in a proceeding in equity or at law);
	     (c) if it is not a natural person, the execution, delivery and performance of this Declaration
	by the Delaware Trustee does not conflict with or constitute a breach of the charter or by-laws of
	the Delaware Trustee;
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	39
 
	 
	     (d) it has trust power and authority to execute and deliver, and to carry out and perform its
	obligations under the terms of, this Declaration;
	     (e) no consent, approval or authorization of, or registration with or notice to, any state or
	federal banking authority governing the trust powers of the Delaware Trustee is required for the
	execution, delivery or performance by the Delaware Trustee of this Declaration; and
	     (f) the Delaware Trustee is a natural person who is a resident of the State of Delaware or, if
	not a natural person, it is an entity which has its principal place of business in the State of
	Delaware and, in either case, a Person that satisfies for the Trust the requirements of Section
	3807 of the Statutory Trust Act.
	ARTICLE XIII
	MISCELLANEOUS
	     
	Section 13.1.
	Notices
	.
	All notices provided for in this Declaration shall be in
	writing, duly signed by the party giving such notice, and shall be delivered, telecopied (which
	telecopy shall be followed by notice delivered or mailed by first class mail) or mailed by first
	class mail, as follows:
	     (a) if given to the Trust, in care of the Administrators at the Trusts mailing address set
	forth below (or such other address as the Trust may give notice of to the Holders of the
	Securities):
	Texas Capital Statutory Trust IV
	c/o Texas Capital Bancshares, Inc.
	2100 McKinney Avenue, Suite 1250
	Dallas, Texas 75201
	Attention: Mark R. Frears
	Telecopy: 214-932-6687
	     (b) if given to the Delaware Trustee, at the Delaware Trustees mailing address set forth
	below (or such other address as the Delaware Trustee may give notice of to the Holders of the
	Securities):
	Wilmington Trust Company
	Rodney Square North
	1100 North Market Street
	Wilmington, Delaware 19890-1600
	Attention: Corporate Trust Administration
	Telecopy: 302-636-4140
	     (c) if given to the Institutional Trustee, at the Institutional Trustees mailing address set
	forth below (or such other address as the Institutional Trustee may give notice of to the Holders
	of the Securities):
	Wilmington Trust Company
	Rodney Square North
	1100 North Market Street
	Wilmington, Delaware 19890-1600
	Attention: Corporate Trust Administration
	Telecopy: 302-636-4140
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	40
 
	 
	     (d) if given to the Holder of the Common Securities, at the mailing address of the Sponsor set
	forth below (or such other address as the Holder of the Common Securities may give notice of to the
	Trust):
	Texas Capital Bancshares, Inc.
	2100 McKinney Avenue, Suite 1250
	Dallas, Texas 75201
	Attention: Mark R. Frears
	Telecopy: 214-932-6687
	     (e) if given to any other Holder, at the address set forth on the books and records of the
	Trust.
	     All such notices shall be deemed to have been given when received in person, telecopied with
	receipt confirmed, or mailed by first class mail, postage prepaid except that if a notice or other
	document is refused delivery or cannot be delivered because of a changed address of which no notice
	was given, such notice or other document shall be deemed to have been delivered on the date of such
	refusal or inability to deliver.
	     
	Section 13.2.
	Governing Law
	.
	This Declaration and the rights of the parties hereunder
	shall be governed by and interpreted in accordance with the law of the State of Delaware and all
	rights and remedies shall be governed by such laws without regard to the principles of conflict of
	laws of the State of Delaware or any other jurisdiction that would call for the application of the
	law of any jurisdiction other than the State of Delaware;
	provided
	,
	however
	, that
	there shall not be applicable to the Trust, the Trustees or this Declaration any provision of the
	laws (statutory or common) of the State of Delaware pertaining to trusts that relate to or
	regulate, in a manner inconsistent with the terms hereof (a) the filing with any court or
	governmental body or agency of trustee accounts or schedules of trustee fees and charges, (b)
	affirmative requirements to post bonds for trustees, officers, agents or employees of a trust, (c)
	the necessity for obtaining court or other governmental approval concerning the acquisition,
	holding or disposition of real or personal property, (d) fees or other sums payable to trustees,
	officers, agents or employees of a trust, (e) the allocation of receipts and expenditures to income
	or principal, or (f) restrictions or limitations on the permissible nature, amount or concentration
	of trust investments or requirements relating to the titling, storage or other manner of holding or
	investing trust assets.
	     
	Section 13.3.
	Intention of the Parties
	.
	It is the intention of the parties hereto
	that the Trust be classified for United States federal income tax purposes as a grantor trust. The
	provisions of this Declaration shall be interpreted to further this intention of the parties.
	     
	Section 13.4.
	Headings
	.
	Headings contained in this Declaration are inserted for
	convenience of reference only and do not affect the interpretation of this Declaration or any
	provision hereof.
	     
	Section 13.5.
	Successors and Assigns
	.
	Whenever in this Declaration any of the parties hereto is named or referred to, the successors
	and assigns of such party shall be deemed to be included, and all covenants and agreements in this
	Declaration by the Sponsor and the Trustees shall bind and inure to the benefit of their respective
	successors and assigns, whether or not so expressed.
	     
	Section 13.6.
	Partial Enforceability
	.
	If any provision of this Declaration, or the
	application of such provision to any Person or circumstance, shall be held invalid, the remainder
	of this Declaration, or the application of such provision to persons or circumstances other than
	those to which it is held invalid, shall not be affected thereby.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	41
 
	 
	     
	Section 13.7.
	Counterparts
	.
	This Declaration may contain more than one counterpart of
	the signature page and this Declaration may be executed by the affixing of the signature of each of
	the Trustees and Administrators to any of such counterpart signature pages. All of such
	counterpart signature pages shall be read as though one, and they shall have the same force and
	effect as though all of the signers had signed a single signature page.
	Signatures appear on the following page
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	42
 
	 
	     IN WITNESS WHEREOF, the undersigned have caused these presents to be executed as of the day
	and year first above written.
|  |  |  |  |  | 
|  | WILMINGTON TRUST COMPANY, as Delaware Trustee
 
 |  | 
|  | By: |  |  | 
|  |  | Name: |  |  | 
|  |  | Title: |  |  | 
|  | 
|  | WILMINGTON TRUST COMPANY, as Institutional Trustee
 
 |  | 
|  | By: |  |  | 
|  |  | Name: |  |  | 
|  |  | Title: |  |  | 
|  | 
|  | TEXAS CAPITAL BANCSHARES, INC., as Sponsor 
 |  | 
|  | By: |  |  | 
|  |  | Name: |  |  | 
|  |  | Title: |  |  | 
|  | 
|  | ADMINISTRATORS OF TEXAS CAPITAL STATUTORY TRUST IV 
 |  | 
|  | By: |  |  | 
|  |  | Administrator |  | 
|  |  |  |  | 
|  | 
|  |  |  | 
|  | By: |  |  | 
|  |  | Administrator |  | 
|  |  |  |  | 
|  | 
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	43
 
	 
	ANNEX I
	TERMS OF SECURITIES
	          Pursuant to Section 6.1 of the Amended and Restated Declaration of Trust, dated as of April
	28, 2006 (as amended from time to time, the Declaration), the designation, rights, privileges,
	restrictions, preferences and other terms and provisions of the Capital Securities and the Common
	Securities are set out below (each capitalized term used but not defined herein has the meaning set
	forth in the Declaration):
	     1. 
	Designation and Number
	.
	          (a) 25,000 Floating Rate Capital Securities of Texas Capital Statutory Trust IV (the Trust),
	with an aggregate stated liquidation amount with respect to the assets of the Trust of twenty-five
	million dollars ($25,000,000.00) and a stated liquidation amount with respect to the assets of the
	Trust of $1,000.00 per Capital Security, are hereby designated for the purposes of identification
	only as the 
	Capital Securities
	. The Capital Security Certificates evidencing the Capital
	Securities shall be substantially in the form of Exhibit A-1 to the Declaration, with such changes
	and additions thereto or deletions therefrom as may be required by ordinary usage, custom or
	practice.
	          (b) 774 Floating Rate Common Securities of the Trust (the 
	Common Securities
	) will be
	evidenced by Common Security Certificates substantially in the form of Exhibit A-2 to the
	Declaration, with such changes and additions thereto or deletions therefrom as may be required by
	ordinary usage, custom or practice.
	     2. 
	Distributions
	.
	          (a) Distributions will be payable on each Security for the Distribution Period beginning on
	(and including) the date of original issuance and ending on (but excluding) the Distribution
	Payment Date in June 2006 at a rate per annum of 6.74875% and shall bear interest for each
	successive Distribution Period beginning on (and including) the Distribution Payment Date in June
	2006, and each succeeding Distribution Payment Date, and ending on (but excluding) the next
	succeeding Distribution Payment Date at a rate per annum equal to the 3-Month LIBOR, determined as
	described below, plus 1.60% (the 
	Coupon Rate
	), applied to the stated liquidation amount
	thereof, such rate being the rate of interest payable on the Debentures to be held by the
	Institutional Trustee. Distributions in arrears will bear interest thereon compounded quarterly at
	the applicable Distribution Rate (to the extent permitted by law). Distributions, as used herein,
	include cash distributions and any such compounded distributions unless otherwise noted. A
	Distribution is payable only to the extent that payments are made in respect of the Debentures held
	by the Institutional Trustee and to the extent the Institutional Trustee has funds available
	therefor. The amount of the Distribution payable for any Distribution Period will be calculated by
	applying the Distribution Rate to the stated liquidation amount outstanding at the commencement of
	the Distribution Period on the basis of the actual number of days in the Distribution Period
	concerned divided by 360. All percentages resulting from any calculations on the Capital
	Securities will be rounded, if necessary, to the nearest one hundred-thousandth of a percentage
	point, with five one-millionths of a percentage point rounded upward (e.g., 9.876545% (or .09876545) being rounded to 9.87655% (or .0987655), and all dollar amounts used in or resulting
	from such calculation will be rounded to the nearest cent (with one-half cent being rounded
	upward)).
	          (b) Distributions on the Securities will be cumulative, will accrue from the date of original
	issuance, and will be payable, subject to extension of distribution payment periods as described
	herein, quarterly in arrears on March 15, June 15, September 15 and December 15 of each year, or if
	such day is not a Business Day, then the next succeeding Business Day (each a 
	Distribution
	Payment Date
	)
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-1
 
	 
	(it being understood that interest accrues for any such non-Business Day), commencing on the
	Distribution Payment Date in June 2006 when, as and if available for payment. The Debenture Issuer
	has the right under the Indenture to defer payments of interest on the Debentures, so long as no
	Acceleration Event of Default has occurred and is continuing, by deferring the payment of interest
	on the Debentures for up to 20 consecutive quarterly periods (each an 
	Extension Period
	)
	at any time and from time to time, subject to the conditions described below, during which
	Extension Period no interest shall be due and payable. During any Extension Period, interest will
	continue to accrue on the Debentures, and interest on such accrued interest will accrue at an
	annual rate equal to the Distribution Rate in effect for each such Extension Period, compounded
	quarterly from the date such interest would have been payable were it not for the Extension Period,
	to the extent permitted by law (such interest referred to herein as 
	Additional Interest
	).
	No Extension Period may end on a date other than a Distribution Payment Date. At the end of any
	such Extension Period, the Debenture Issuer shall pay all interest then accrued and unpaid on the
	Debentures (together with Additional Interest thereon);
	provided
	,
	however
	, that no
	Extension Period may extend beyond the Maturity Date and
	provided
	further
	,
	however
	, that during any such Extension Period, the Debenture Issuer and its Affiliates
	shall not (i) declare or pay any dividends or distributions on, or redeem, purchase, acquire, or
	make a liquidation payment with respect to, any of the Debenture Issuers or its Affiliates
	capital stock (other than payments of dividends or distributions to the Debenture Issuer) or make
	any guarantee payments with respect to the foregoing, or (ii) make any payment of principal of or
	interest or premium, if any, on or repay, repurchase or redeem any debt securities of the Debenture
	Issuer or any Affiliate that rank
	pari passu
	in all respects with or junior in interest to the
	Debentures (other than, with respect to clauses (i) and (ii) above, (a) repurchases, redemptions or
	other acquisitions of shares of capital stock of the Debenture Issuer in connection with any
	employment contract, benefit plan or other similar arrangement with or for the benefit of one or
	more employees, officers, directors or consultants, in connection with a dividend reinvestment or
	stockholder stock purchase plan or in connection with the issuance of capital stock of the
	Debenture Issuer (or securities convertible into or exercisable for such capital stock) as
	consideration in an acquisition transaction entered into prior to the applicable Extension Period,
	(b) as a result of any exchange or conversion of any class or series of the Debenture Issuers
	capital stock (or any capital stock of a subsidiary of the Debenture Issuer) for any class or
	series of the Debenture Issuers capital stock or of any class or series of the Debenture Issuers
	indebtedness for any class or series of the Debenture Issuers capital stock, (c) the purchase of
	fractional interests in shares of the Debenture Issuers capital stock pursuant to the conversion
	or exchange provisions of such capital stock or the security being converted or exchanged, (d) any
	declaration of a dividend in connection with any stockholders rights plan, or the issuance of
	rights, stock or other property under any stockholders rights plan, or the redemption or
	repurchase of rights pursuant thereto, (e) any dividend in the form of stock, warrants, options or
	other rights where the dividend stock or the stock issuable upon exercise of such warrants, options
	or other rights is the same stock as that on which the dividend is being paid or ranks
	pari passu
	with or junior to such stock and any cash payments in lieu of fractional shares
	issued in
	connection therewith, or (f) payments under the Capital Securities Guarantee). Prior to the
	termination of any Extension Period, the Debenture Issuer may further extend such period, provided
	that such period together with all such previous and further consecutive extensions thereof shall
	not exceed 20 consecutive quarterly periods, or extend beyond the Maturity Date. Upon the
	termination of any Extension Period and upon the payment of all accrued and unpaid interest and
	Additional Interest, the Debenture Issuer may commence a new Extension Period, subject to the
	foregoing requirements. No interest or Additional Interest shall be due and payable during an
	Extension Period, except at the end thereof, but each installment of interest that would otherwise
	have been due and payable during such Extension Period shall bear Additional Interest. During any
	Extension Period, Distributions on the Securities shall be deferred for a period equal to the
	Extension Period. If Distributions are deferred, the Distributions due shall be paid on the date
	that the related Extension Period terminates to Holders of the Securities as they appear on the
	books and records of the Trust on the record date immediately preceding such date. Distributions
	on the Securities must be paid on the dates payable (after giving effect to any Extension Period)
	to the extent that the Trust has
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-2
 
	 
	funds available for the payment of such distributions in the Property Account of the Trust.
	The Trusts funds available for Distribution to the Holders of the Securities will be limited to
	payments received from the Debenture Issuer. The payment of Distributions out of moneys held by
	the Trust is guaranteed by the Guarantor pursuant to the Guarantee.
	          (c) Distributions on the Securities will be payable to the Holders thereof as they appear on
	the books and records of the Trust on the relevant record dates. The relevant record dates shall
	be fifteen days before the relevant Distribution Payment Date. Distributions payable on any
	Securities that are not punctually paid on any Distribution Payment Date, as a result of the
	Debenture Issuer having failed to make a payment under the Debentures, as the case may be, when due
	(taking into account any Extension Period), will cease to be payable to the Person in whose name
	such Securities are registered on the relevant record date, and such defaulted Distribution will
	instead be payable to the Person in whose name such Securities are registered on the special record
	date or other specified date determined in accordance with the Indenture.
	          (d) In the event that there is any money or other property held by or for the Trust that is
	not accounted for hereunder, such property shall be distributed Pro Rata (as defined herein) among
	the Holders of the Securities.
	     3. 
	Liquidation Distribution Upon Dissolution
	. In the event of the voluntary or
	involuntary liquidation, dissolution, winding-up or termination of the Trust (each a
	
	Liquidation
	) other than in connection with a redemption of the Debentures, the Holders of
	the Securities will be entitled to receive out of the assets of the Trust available for
	distribution to Holders of the Securities, after satisfaction of liabilities to creditors of the
	Trust (to the extent not satisfied by the Debenture Issuer), distributions equal to the aggregate
	of the stated liquidation amount of $1,000.00 per Security plus accrued and unpaid Distributions
	thereon to the date of payment (such amount being the 
	Liquidation Distribution
	), unless
	in connection with such Liquidation, the Debentures in an aggregate stated principal amount equal
	to the aggregate stated liquidation amount of such Securities, with an interest rate equal to the
	Distribution Rate of, and bearing accrued and unpaid interest in an amount equal to the accrued and
	unpaid Distributions on, and having the same record date as, such Securities, after paying or
	making reasonable provision to pay all claims and obligations of the Trust in accordance with the
	Statutory Trust Act, shall be distributed on a Pro Rata basis to the Holders of the Securities in
	exchange for such Securities.
	     The Sponsor, as the Holder of all of the Common Securities, has the right at any time to
	dissolve the Trust (including, without limitation, upon the occurrence of a Special Event), subject
	to the receipt by the Debenture Issuer of prior approval from the Board of Governors of the Federal
	Reserve System, or its designated district bank, as applicable, and any successor federal agency
	that is primarily responsible for regulating the activities of the Sponsor (the 
	Federal
	Reserve
	), if the Sponsor is a bank holding company, or from the Office of Thrift Supervision
	and any successor federal agency that is primarily responsible for regulating the activities of
	Sponsor, (the 
	OTS
	) if the Sponsor is a savings and loan holding company, in either case
	if then required under applicable capital guidelines or policies of the Federal Reserve or OTS, as
	applicable, and, after satisfaction of liabilities to creditors of the Trust, cause the Debentures
	to be distributed to the Holders of the Securities on a Pro Rata basis in accordance with the
	aggregate stated liquidation amount thereof.
	     If a Liquidation of the Trust occurs as described in clause (i), (ii), (iii) or (v) in Section
	7.1(a) of the Declaration, the Trust shall be liquidated by the Institutional Trustee as
	expeditiously as it determines to be possible by distributing, after satisfaction of liabilities to
	creditors of the Trust, to the Holders of the Securities, the Debentures on a Pro Rata basis to the
	extent not satisfied by the Debenture Issuer, unless such distribution is determined by the
	Institutional Trustee not to be practical, in which event such Holders will be entitled to receive
	out of the assets of the Trust available for distribution to the Holders,
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-3
 
	 
	after satisfaction of liabilities of creditors of the Trust to the extent not satisfied by the
	Debenture Issuer, an amount equal to the Liquidation Distribution. An early Liquidation of the
	Trust pursuant to clause (iv) of Section 7.1(a) of the Declaration shall occur if the Institutional
	Trustee determines that such Liquidation is possible by distributing, after satisfaction of
	liabilities to creditors of the Trust, to the Holders of the Securities on a Pro Rata basis, the
	Debentures, and such distribution occurs.
	     If, upon any such Liquidation the Liquidation Distribution can be paid only in part because
	the Trust has insufficient assets available to pay in full the aggregate Liquidation Distribution,
	then the amounts payable directly by the Trust on such Capital Securities shall be paid to the
	Holders of the Trust Securities on a Pro Rata basis, except that if an Event of Default has
	occurred and is continuing, the Capital Securities shall have a preference over the Common
	Securities with regard to such distributions.
	     After the date for any distribution of the Debentures upon dissolution of the Trust (i) the
	Securities of the Trust will be deemed to be no longer outstanding, (ii) upon surrender of a
	Holders Securities certificate, such Holder of the Securities will receive a certificate
	representing the Debentures to be delivered upon such distribution, (iii) any certificates
	representing the Securities still outstanding will be deemed to represent undivided beneficial
	interests in such of the Debentures as have an aggregate principal amount equal to the aggregate
	stated liquidation amount with an interest rate identical to the Distribution Rate of, and bearing
	accrued and unpaid interest equal to accrued and unpaid distributions on, the Securities until such
	certificates are presented to the Debenture Issuer or its agent for transfer or reissuance (and
	until such certificates are so surrendered, no payments of interest or principal shall be made to
	Holders of Securities in respect of any payments due and payable under the Debentures;
	provided
	,
	however
	that such failure to pay shall not be deemed to be an Event of
	Default and shall not entitle the Holder to the benefits of the Guarantee), and (iv) all rights of
	Holders of Securities under the Declaration shall cease, except the right of such Holders to
	receive Debentures upon surrender of certificates representing such Securities.
	     4. 
	Redemption and Distribution
	.
	          (a) The Debentures will mature on June 15, 2036. The Debentures may be redeemed by the
	Debenture Issuer, in whole or in part, at any Distribution Payment Date on or after the
	Distribution Payment Date in June 2011, at the Redemption Price. In addition, the Debentures may be
	redeemed by the Debenture Issuer at the Special Redemption Price, in whole but not in part, at any
	Distribution Payment Date, upon the occurrence and continuation of a Special Event within 120 days
	following the occurrence of such Special Event at the Special Redemption Price, upon not less than
	30 nor more than 60 days notice to holders of such Debentures so long as such Special Event is
	continuing. In each case, the right of the Debenture Issuer to redeem the Debentures is subject to
	the Debenture Issuer having received prior approval from the Federal Reserve (if the Debenture
	Issuer is a bank holding company) or prior approval from the OTS (if the Debenture Issuer is a
	savings and loan holding company), in each case if then required under applicable capital
	guidelines or policies of the applicable federal agency.
	     
	3-Month LIBOR
	 means the London interbank offered interest rate for three-month, U.S.
	dollar deposits determined by the Debenture Trustee in the following order of priority:
	     (1) the rate (expressed as a percentage per annum) for U.S. dollar deposits having a
	three-month maturity that appears on Telerate Page 3750 as of 11:00 a.m. (London time) on
	the related Determination Date (as defined below). Telerate Page 3750 means the display
	designated as Page 3750 on the Moneyline Telerate Service or such other page as may
	replace Page 3750 on that service or such other service or services as may be nominated by
	the British Bankers Association as the information vendor for the purpose of displaying
	London interbank offered rates for U.S. dollar deposits;
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-4
 
	 
	     (2) if such rate cannot be identified on the related Determination Date, the Debenture
	Trustee will request the principal London offices of four leading banks in the London
	interbank market to provide such banks offered quotations (expressed as percentages per
	annum) to prime banks in the London interbank market for U.S. dollar deposits having a
	three-month maturity as of 11:00 a.m. (London time) on such Determination Date. If at least
	two quotations are provided, 3-Month LIBOR will be the arithmetic mean of such quotations;
	     (3) if fewer than two such quotations are provided as requested in clause (2) above,
	the Debenture Trustee will request four major New York City banks to provide such banks
	offered quotations (expressed as percentages per annum) to leading European banks for loans
	in U.S. dollars as of 11:00 a.m. (London time) on such Determination Date. If at least two
	such quotations are provided, 3-Month LIBOR will be the arithmetic mean of such quotations;
	and
	     (4) if fewer than two such quotations are provided as requested in clause (3) above,
	3-Month LIBOR will be a 3-Month LIBOR determined with respect to the Distribution Period
	immediately preceding such current Distribution Period.
	     If the rate for U.S. dollar deposits having a three-month maturity that initially appears on
	Telerate Page 3750 as of 11:00 a.m. (London time) on the related Determination Date is superseded
	on the Telerate Page 3750 by a corrected rate by 12:00 noon (London time) on such Determination
	Date, then the corrected rate as so substituted on the applicable page will be the applicable
	3-Month LIBOR for such Determination Date.
	     The Distribution Rate for any Distribution Period will at no time be higher than the maximum
	rate then permitted by New York law as the same may be modified by United States law.
	     
	Capital Treatment Event
	 means the receipt by the Debenture Issuer and the Trust of
	an opinion of counsel experienced in such matters to the effect that, as a result of the occurrence
	of any amendment to, or change (including any announced prospective change) in, the laws, rules or
	regulations of the United States or any political subdivision thereof or therein, or as the result
	of any official or administrative pronouncement or action or decision interpreting or applying such
	laws, rules or regulations, which amendment or change is effective or which pronouncement, action
	or decision is announced on or after the date of original issuance of the Debentures, there is more
	than an insubstantial risk that the Sponsor will not, within 90 days of the date of such opinion,
	be entitled to treat an amount equal to the aggregate liquidation amount of the Capital Securities
	as Tier 1 Capital (or its then equivalent) for purposes of the capital adequacy guidelines of the
	Federal Reserve, as then in effect and applicable to the Sponsor (or if the Sponsor is not a bank
	holding company or otherwise is not subject to the Federal Reserves risk-based capital adequacy
	guidelines, such guidelines applied to the Sponsor as if the Sponsor were subject to such
	guidelines);
	provided
	,
	however
	, that the inability of the Sponsor to treat all or
	any portion of the liquidation amount of the Capital Securities as Tier l Capital shall not
	constitute the basis for a Capital Treatment Event, if such inability results from the Sponsor
	having cumulative preferred stock, minority interests in consolidated subsidiaries, or any other
	class of security or interest which the Federal Reserve or OTS, as applicable, may now or hereafter
	accord Tier 1 Capital treatment in excess of the amount which may now or hereafter qualify for
	treatment as Tier 1 Capital under applicable capital adequacy guidelines;
	provided
	further
	,
	however
	, that the distribution of Debentures in connection with the
	Liquidation of the Trust shall not in and of itself constitute a Capital Treatment Event unless
	such Liquidation shall have occurred in connection with a Tax Event or an Investment Company Event.
	     
	Determination Date
	 means the date that is two London Banking Days (i.e., a business
	day in which dealings in deposits in U.S. dollars are transacted in the London interbank market)
	preceding the particular Distribution Period for which a Coupon Rate is being determined.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-5
 
	 
	     
	Investment Company Event
	 means the receipt by the Debenture Issuer and the Trust of
	an opinion of counsel experienced in such matters to the effect that, as a result of the occurrence
	of a change in law or regulation or written change (including any announced prospective change) in
	interpretation or application of law or regulation by any legislative body, court, governmental
	agency or regulatory authority, there is more than an insubstantial risk that the Trust is or,
	within 90 days of the date of such opinion, will be considered an Investment Company that is
	required to be registered under the Investment Company Act which change or prospective change
	becomes effective or would become effective, as the case may be, on or after the date of the
	issuance of the Debentures.
	     
	Maturity Date
	 means June 15, 2036.
	     
	Redemption Date
	 shall mean the date fixed for the redemption of Capital Securities,
	which shall be any Distribution Payment Date on or after the Distribution Payment Date in June
	2011.
	     
	Redemption Price
	 means 100% of the principal amount of the Debentures being
	redeemed, plus accrued and unpaid Interest on such Debentures to the Redemption Date.
	     
	Special Event
	 means a Tax Event, an Investment Company Event or a Capital Treatment
	Event.
	     
	Special Redemption Date
	 means a date on which a Special Event redemption occurs,
	which shall be a Distribution Payment Date.
	     
	Special Redemption Price
	 means the price set forth in the following table for any
	Special Redemption Date that occurs on the date indicated below (or if such day is not a Business
	Day, then the next succeeding Business Day), expressed as the percentage of the principal amount of
	the Debentures being redeemed:
|  |  |  |  |  | 
| Month in which |  |  | 
| Special Redemption Date Occurs |  | Special Redemption Price | 
| 
	June 2006
 |  |  | 104.625 | % | 
| 
	September 2006
 |  |  | 104.300 | % | 
| 
	December 2006
 |  |  | 104.000 | % | 
| 
	March 2007
 |  |  | 103.650 | % | 
| 
	June 2007
 |  |  | 103.350 | % | 
| 
	September 2007
 |  |  | 103.000 | % | 
| 
	December 2007
 |  |  | 102.700 | % | 
| 
	March 2008
 |  |  | 102.350 | % | 
| 
	June 2008
 |  |  | 102.050 | % | 
| 
	September 2008
 |  |  | 101.700 | % | 
| 
	December 2008
 |  |  | 101.400 | % | 
 
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-6
 
	 
|  |  |  |  |  | 
| Month in which |  |  | 
| Special Redemption Date Occurs |  | Special Redemption Price | 
| 
	March 2009
 |  |  | 101.050 | % | 
| 
	June 2009
 |  |  | 100.750 | % | 
| 
	September 2009
 |  |  | 100.450 | % | 
| 
	December 2009
 |  |  | 100.200 | % | 
| 
	March 2010 and thereafter
 |  |  | 100.000 | % | 
 
	     plus, in each case, accrued and unpaid Interest on such Debentures to the Special Redemption
	Date.
	     
	Tax Event
	 means the receipt by the Debenture Issuer and the Trust of an opinion of
	counsel experienced in such matters to the effect that, as a result of any amendment to or change
	(including any announced prospective change) in the laws or any regulations thereunder of the
	United States or any political subdivision or taxing authority thereof or therein, or as a result
	of any official administrative pronouncement (including any private letter ruling, technical advice
	memorandum, field service advice, regulatory procedure, notice or announcement including any notice
	or announcement of intent to adopt such procedures or regulations) (an 
	Administrative
	Action
	) or judicial decision interpreting or applying such laws or regulations, regardless of
	whether such Administrative Action or judicial decision is issued to or in connection with a
	proceeding involving the Debenture Issuer or the Trust and whether or not subject to review or
	appeal, which amendment, clarification, change, Administrative Action or decision is enacted,
	promulgated or announced, in each case on or after the date of original issuance of the Debentures,
	there is more than an insubstantial risk that: (i) the Trust is, or will be within 90 days of the
	date of such opinion, subject to United States federal income tax with respect to income received
	or accrued on the Debentures; (ii) interest payable by the Debenture Issuer on the Debentures is
	not, or within 90 days of the date of such opinion, will not be, deductible by the Debenture
	Issuer, in whole or in part, for United States federal income tax purposes; or (iii) the Trust is,
	or will be within 90 days of the date of such opinion, subject to more than a de minimis amount of
	other taxes, duties or other governmental charges.
	          (b) Upon the repayment in full at maturity or redemption in whole or in part of the Debentures
	(other than following the distribution of the Debentures to the Holders of the Securities), the
	proceeds from such repayment or payment shall concurrently be applied to redeem Pro Rata at the
	applicable Redemption Price or Special Redemption Price, as applicable, Securities having an
	aggregate liquidation amount equal to the aggregate principal amount of the Debentures so repaid or
	redeemed;
	provided
	,
	however
	, that holders of such Securities shall be given not
	less than 30 nor more than 60 days notice of such redemption (other than at the scheduled maturity
	of the Debentures).
	          (c) If fewer than all the outstanding Securities are to be so redeemed, the Common Securities
	and the Capital Securities will be redeemed Pro Rata and the Capital Securities to be redeemed will
	be redeemed Pro Rata from each Holder of Capital Securities.
	          (d) The Trust may not redeem fewer than all the outstanding Capital Securities unless all
	accrued and unpaid Distributions have been paid on all Capital Securities for all quarterly
	Distribution periods terminating on or before the date of redemption.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-7
 
	 
	          (e)
	Redemption or Distribution Procedures
	.
	          (i) Notice of any redemption of, or notice of distribution of the Debentures in
	exchange for, the Securities (a 
	Redemption/Distribution Notice
	) will be given by
	the Trust by mail to each Holder of Securities to be redeemed or exchanged not fewer than 30
	nor more than 60 days before the date fixed for redemption or exchange thereof which, in the
	case of a redemption, will be the date fixed for redemption of the Debentures. For purposes
	of the calculation of the date of redemption or exchange and the dates on which notices are
	given pursuant to this paragraph 4(e)(i), a Redemption/Distribution Notice shall be deemed
	to be given on the day such notice is first mailed by first-class mail, postage prepaid, to
	Holders of such Securities. Each Redemption/Distribution Notice shall be addressed to the
	Holders of such Securities at the address of each such Holder appearing on the books and
	records of the Trust. No defect in the Redemption/Distribution Notice or in the mailing
	thereof with respect to any Holder shall affect the validity of the redemption or exchange
	proceedings with respect to any other Holder.
	          (ii) If the Securities are to be redeemed and the Trust gives a Redemption/
	Distribution Notice, which notice may only be issued if the Debentures are redeemed as set
	out in this paragraph 4 (which notice will be irrevocable), then,
	provided
	that the
	Institutional Trustee has a sufficient amount of cash in connection with the related
	redemption or maturity of the Debentures, the Institutional Trustee will pay the relevant
	Redemption Price or Special Redemption Price, as applicable, to the Holders of such
	Securities by check mailed to the address of each such Holder appearing on the books and
	records of the Trust on the Redemption Date. If a Redemption/Distribution Notice shall have
	been given and funds deposited as required then immediately prior to the close of business
	on the date of such deposit Distributions will cease to accrue on the Securities so called
	for redemption and all rights of Holders of such Securities so called for redemption will
	cease, except the right of the Holders of such Securities to receive the applicable
	Redemption Price or Special Redemption Price specified in paragraph 4(a), but without
	interest on such Redemption Price or Special Redemption Price. If payment of the Redemption
	Price or Special Redemption Price in respect of any Securities is improperly withheld or
	refused and not paid either by the Trust or by the Debenture Issuer as guarantor pursuant to
	the Guarantee, Distributions on such Securities will continue to accrue at the Distribution
	Rate from the original Redemption Date to the actual date of payment, in which case the
	actual payment date will be considered the date fixed for redemption for purposes of
	calculating the Redemption Price or Special Redemption Price. In the event of any
	redemption of the Capital Securities issued by the Trust in part, the Trust shall not be
	required to (i) issue, register the transfer of or exchange any Security during a period
	beginning at the opening of business fifteen days before any selection for redemption of the
	Capital Securities and ending at the close of business on the earliest date on which the
	relevant notice of redemption is deemed to have been given to all Holders of the Capital
	Securities to be so redeemed or (ii) register the transfer of or exchange any Capital
	Securities so selected for redemption, in whole or in part, except for the unredeemed
	portion of any Capital Securities being redeemed in part.
	          (iii) Redemption/Distribution Notices shall be sent by the Administrators on behalf of
	the Trust to (A) in respect of the Capital Securities, the Holders thereof and (B) in
	respect of the Common Securities, the Holder thereof.
	          (iv) Subject to the foregoing and applicable law (including, without limitation, United
	States federal securities laws), and provided that the acquiror is not the Holder of the
	Common Securities or the obligor under the Indenture, the Sponsor or any of its
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-8
 
	 
	subsidiaries may at any time and from time to time purchase outstanding Capital
	Securities by tender, in the open market or by private agreement.
	     5. 
	Voting Rights  Capital Securities
	.
	          (a) Except as provided under paragraphs 5(b) and 7 and as otherwise required by law and the
	Declaration, the Holders of the Capital Securities will have no voting rights. The Administrators
	are required to call a meeting of the Holders of the Capital Securities if directed to do so by
	Holders of at least 10% in liquidation amount of the Capital Securities.
	          (b) Subject to the requirements of obtaining a tax opinion by the Institutional Trustee in
	certain circumstances set forth in the last sentence of this paragraph, the Holders of a Majority
	in liquidation amount of the Capital Securities, voting separately as a class, have the right to
	direct the time, method, and place of conducting any proceeding for any remedy available to the
	Institutional Trustee, or exercising any trust or power conferred upon the Institutional Trustee
	under the Declaration, including the right to direct the Institutional Trustee, as holder of the
	Debentures, to (i) exercise the remedies available under the Indenture as the holder of the
	Debentures, (ii) waive any past default that is waivable under the Indenture, (iii) exercise any
	right to rescind or annul a declaration that the principal of all the Debentures shall be due and
	payable or (iv) consent on behalf of all the Holders of the Capital Securities to any amendment,
	modification or termination of the Indenture or the Debentures where such consent shall be
	required;
	provided
	,
	however
	, that, where a consent or action under the Indenture
	would require the consent or act of the holders of greater than a simple majority in aggregate
	principal amount of Debentures (a 
	Super Majority
	) affected thereby, the Institutional
	Trustee may only give such consent or take such action at the written direction of the Holders of
	at least the proportion in liquidation amount of the Capital Securities outstanding which the
	relevant Super Majority represents of the aggregate principal amount of the Debentures outstanding.
	If the Institutional Trustee fails to enforce its rights under the Debentures after the Holders of
	a Majority in liquidation amount of such Capital Securities have so directed the Institutional
	Trustee, to the fullest extent permitted by law, a Holder of the Capital Securities may institute a
	legal proceeding directly against the Debenture Issuer to enforce the Institutional Trustees
	rights under the Debentures without first instituting any legal proceeding against the
	Institutional Trustee or any other person or entity. Notwithstanding the foregoing, if an Event of
	Default has occurred and is continuing and such event is attributable to the failure of the
	Debenture Issuer to pay interest or principal on the Debentures on the date the interest or
	principal is payable (or in the case of redemption, the Redemption Date or the Special Redemption
	Date, as applicable), then a Holder of record of the Capital Securities may directly institute a
	proceeding for enforcement of payment, on or after the respective due dates specified in the
	Debentures, to such Holder directly of the principal of or interest on the Debentures having an
	aggregate principal amount equal to the aggregate liquidation amount of the Capital Securities of
	such Holder. The Institutional Trustee shall notify all Holders of the Capital Securities of any
	default actually known to the Institutional Trustee with respect to the Debentures unless (x) such
	default has been cured prior to the giving of such notice or (y) the Institutional Trustee
	determines in good faith that the withholding of such notice is in the interest of the Holders of
	such Capital Securities, except where the default relates to the payment of principal of or
	interest on any of the Debentures. Such notice shall state that such Indenture Event of Default
	also constitutes an Event of Default hereunder. Except with respect to directing the time, method
	and place of conducting a proceeding for a remedy, the Institutional Trustee shall not take any of
	the actions described in clauses (i), (ii) or (iii) above unless the Institutional Trustee has
	obtained an opinion of tax counsel to the effect that, as a result of such action, the Trust will
	not be classified as other than a grantor trust for United
	States federal income tax purposes.
	     In the event the consent of the Institutional Trustee, as the holder of the Debentures, is
	required under the Indenture with respect to any amendment, modification or termination of the
	Indenture, the Institutional Trustee shall request the direction of the Holders of the Securities
	with respect to such
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-9
 
	 
	amendment, modification or termination and shall vote with respect to such amendment,
	modification or termination as directed by a Majority in liquidation amount of the Securities
	voting together as a single class;
	provided
	,
	however
	, that where a consent under
	the Indenture would require the consent of a Super-Majority, the Institutional Trustee may only
	give such consent at the direction of the Holders of at least the proportion in liquidation amount
	of the Securities outstanding which the relevant Super-Majority represents of the aggregate
	principal amount of the Debentures outstanding. The Institutional Trustee shall not take any such
	action in accordance with the directions of the Holders of the Securities unless the Institutional
	Trustee has obtained an opinion of tax counsel to the effect that, as a result of such action, the
	Trust will not be classified as other than a grantor trust for United States federal income tax
	purposes.
	     A waiver of an Indenture Event of Default will constitute a waiver of the corresponding Event
	of Default hereunder. Any required approval or direction of Holders of the Capital Securities may
	be given at a separate meeting of Holders of the Capital Securities convened for such purpose, at a
	meeting of all of the Holders of the Securities in the Trust or pursuant to written consent. The
	Institutional Trustee will cause a notice of any meeting at which Holders of the Capital Securities
	are entitled to vote, or of any matter upon which action by written consent of such Holders is to
	be taken, to be mailed to each Holder of record of the Capital Securities. Each such notice will
	include a statement setting forth the following information (i) the date of such meeting or the
	date by which such action is to be taken, (ii) a description of any resolution proposed for
	adoption at such meeting on which such Holders are entitled to vote or of such matter upon which
	written consent is sought and (iii) instructions for the delivery of proxies or consents. No vote
	or consent of the Holders of the Capital Securities will be required for the Trust to redeem and
	cancel Capital Securities or to distribute the Debentures in accordance with the Declaration and
	the terms of the Securities.
	     Notwithstanding that Holders of the Capital Securities are entitled to vote or consent under
	any of the circumstances described above, any of the Capital Securities that are owned by the
	Sponsor or any Affiliate of the Sponsor shall not entitle the Holder thereof to vote or consent and
	shall, for purposes of such vote or consent, be treated as if such Capital Securities were not
	outstanding.
	     In no event will Holders of the Capital Securities have the right to vote to appoint, remove
	or replace the Administrators, which voting rights are vested exclusively in the Sponsor as the
	Holder of all of the Common Securities of the Trust. Under certain circumstances as more fully
	described in the Declaration, Holders of Capital Securities have the right to vote to appoint,
	remove or replace the Institutional Trustee and the Delaware Trustee.
	     6. 
	Voting Rights  Common Securities
	.
	          (a) Except as provided under paragraphs 6(b), 6(c) and 7 and as otherwise required by law and
	the Declaration, the Common Securities will have no voting rights.
	          (b) The Holders of the Common Securities are entitled, in accordance with Article IV of the
	Declaration, to vote to appoint, remove or replace any Administrators.
	          (c) Subject to Section 6.7 of the Declaration and only after each Event of Default (if any)
	with respect to the Capital Securities has been cured, waived, or otherwise eliminated and subject
	to the requirements of the second to last sentence of this paragraph, the Holders of a Majority in
	liquidation amount of the Common Securities, voting separately as a class, may direct the time,
	method, and place of conducting any proceeding for any remedy available to the Institutional
	Trustee, or exercising any trust or power conferred upon the Institutional Trustee under the
	Declaration, including (i) directing the time, method, place of conducting any proceeding for any
	remedy available to the Debenture Trustee, or exercising any trust or power conferred on the
	Debenture Trustee with respect to the Debentures, (ii) waiving any past default and its
	consequences that is waivable under the Indenture, or (iii) exercising
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-10
 
	 
	any right to rescind or annul a declaration that the principal of all the Debentures shall be
	due and payable;
	provided
	,
	however
	, that, where a consent or action under the
	Indenture would require a Super Majority, the Institutional Trustee may only give such consent or
	take such action at the written direction of the Holders of at least the proportion in liquidation
	amount of the Common Securities which the relevant Super Majority represents of the aggregate
	principal amount of the Debentures outstanding. Notwithstanding this paragraph 6(c), the
	Institutional Trustee shall not revoke any action previously authorized or approved by a vote or
	consent of the Holders of the Capital Securities. Other than with respect to directing the time,
	method and place of conducting any proceeding for any remedy available to the Institutional Trustee
	or the Debenture Trustee as set forth above, the Institutional Trustee shall not take any action
	described in (i), (ii) or (iii) above, unless the Institutional Trustee has obtained an opinion of
	tax counsel to the effect that for the purposes of United States federal income tax the Trust will
	not be classified as other than a grantor trust on account of such action. If the Institutional
	Trustee fails to enforce its rights, to the fullest extent permitted by law, under the Declaration,
	any Holder of the Common Securities may institute a legal proceeding directly against any Person to
	enforce the Institutional Trustees rights under the Declaration, without first instituting a legal
	proceeding against the Institutional Trustee or any other Person.
	     Any approval or direction of Holders of the Common Securities may be given at a separate
	meeting of Holders of the Common Securities convened for such purpose, at a meeting of all of the
	Holders of the Securities in the Trust or pursuant to written consent. The Administrators will
	cause a notice of any meeting at which Holders of the Common Securities are entitled to vote, or of
	any matter upon which action by written consent of such Holders is to be taken, to be mailed to
	each Holder of the Common Securities. Each such notice will include a statement setting forth (i)
	the date of such meeting or the date by which such action is to be taken, (ii) a description of any
	resolution proposed for adoption at such meeting on which such Holders are entitled to vote or of
	such matter upon which written consent is sought and (iii) instructions for the delivery of proxies
	or consents.
	     No vote or consent of the Holders of the Common Securities will be required for the Trust to
	redeem and cancel Common Securities or to distribute the Debentures in accordance with the
	Declaration and the terms of the Securities.
	     7. 
	Amendments to Declaration and Indenture
	.
	          (a) In addition to any requirements under Section 11.1 of the Declaration, if any proposed
	amendment to the Declaration provides for, or the Trustees, Sponsor or Administrators otherwise
	propose to effect, (i) any action that would adversely affect the powers, preferences or special
	rights of the Securities, whether by way of amendment to the Declaration or otherwise, or (ii) the
	Liquidation of the Trust, other than as described in Section 7.1 of the Declaration, then the
	Holders of outstanding Securities, voting together as a single class, will be entitled to vote on
	such amendment or proposal and such amendment or proposal shall not be effective except with the
	approval of the Holders of at least a Majority in liquidation amount of the Securities, affected
	thereby;
	provided
	,
	however
	, if any amendment or proposal referred to in clause (i)
	above would adversely affect only the Capital Securities or only the Common Securities, then only
	the affected class will be entitled to vote on such amendment or proposal and such amendment or
	proposal shall not be effective except with the approval of a Majority in liquidation amount of
	such class of Securities.
	          (b) In the event the consent of the Institutional Trustee as the holder of the Debentures is
	required under the Indenture with respect to any amendment, modification or termination of the
	Indenture or the Debentures, the Institutional Trustee shall request the written direction of the
	Holders of the Securities with respect to such amendment, modification or termination and shall
	vote with respect to such amendment, modification, or termination as directed by a Majority in
	liquidation amount of the
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-11
 
	 
	Securities voting together as a single class;
	provided
	,
	however
	, that where a
	consent under the Indenture would require a Super Majority, the Institutional Trustee may only give
	such consent at the direction of the Holders of at least the proportion in liquidation amount of
	the Securities which the relevant Super Majority represents of the aggregate principal amount of
	the Debentures outstanding.
	          (c) Notwithstanding the foregoing, no amendment or modification may be made to the Declaration
	if such amendment or modification would (i) cause the Trust to be classified for purposes of United
	States federal income taxation as other than a grantor trust, (ii) reduce or otherwise adversely
	affect the powers of the Institutional Trustee or (iii) cause the Trust to be deemed an Investment
	Company which is required to be registered under the Investment Company Act.
	          (d) Notwithstanding any provision of the Declaration, the right of any Holder of the Capital
	Securities to receive payment of distributions and other payments upon redemption or otherwise, on
	or after their respective due dates, or to institute a suit for the enforcement of any such payment
	on or after such respective dates, shall not be impaired or affected without the consent of such
	Holder. For the protection and enforcement of the foregoing provision, each and every Holder of the
	Capital Securities shall be entitled to such relief as can be given either at law or equity.
	     8. 
	Pro Rata
	. A reference in these terms of the Securities to any payment,
	distribution or treatment as being 
	Pro Rata
	 shall mean pro rata to each Holder of the
	Securities according to the aggregate liquidation amount of the Securities held by the relevant
	Holder in relation to the aggregate liquidation amount of all Securities then outstanding unless,
	in relation to a payment, an Event of Default has occurred and is continuing, in which case any
	funds available to make such payment shall be paid first to each Holder of the Capital Securities
	Pro Rata according to the aggregate liquidation amount of the Capital Securities held by the
	relevant Holder relative to the aggregate liquidation amount of all Capital Securities outstanding,
	and only after satisfaction of all amounts owed to the Holders of the Capital Securities, to each
	Holder of the Common Securities Pro Rata according to the aggregate liquidation amount of the
	Common Securities held by the relevant Holder relative to the aggregate liquidation amount of all
	Common Securities outstanding.
	     9. 
	Ranking
	. The Capital Securities rank
	pari passu
	with and payment thereon shall be
	made Pro Rata with the Common Securities except that, where an Event of Default has occurred and is
	continuing, the rights of Holders of the Common Securities to receive payment of Distributions and
	payments upon liquidation, redemption and otherwise are subordinated to the rights of the Holders
	of the Capital Securities with the result that no payment of any Distribution on, or Redemption
	Price (or Special Redemption Price) of, any Common Security, and no other payment on account of
	redemption, liquidation or other acquisition of Common Securities, shall be made unless payment in
	full in cash of all accumulated and unpaid Distributions on all outstanding Capital Securities for
	all distribution periods terminating on or prior thereto, or in the case of payment of the
	Redemption Price (or Special Redemption Price) the full amount of such Redemption Price (or Special
	Redemption Price) on all outstanding Capital Securities then called for redemption, shall have been
	made or provided for, and all funds immediately available to the Institutional Trustee shall first
	be applied to the payment in full in cash of all Distributions on, or the Redemption Price (or
	Special Redemption Price) of, the Capital Securities then due and payable.
	     10. 
	Acceptance of Guarantee and Indenture
	. Each Holder of the Capital Securities and
	the Common Securities, by the acceptance of such Securities, agrees to the provisions of the
	Guarantee, including the subordination provisions therein and to the provisions of the Indenture.
	     11. 
	No Preemptive Rights
	. The Holders of the Securities shall have no preemptive or
	similar rights to subscribe for any additional securities.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-12
 
	 
	     12. 
	Miscellaneous
	. These terms constitute a part of the Declaration. The Sponsor will
	provide a copy of the Declaration, the Guarantee, and the Indenture to a Holder without charge on
	written request to the Sponsor at its principal place of business.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	I-13
 
	 
	EXHIBIT A-1
	FORM OF CAPITAL SECURITY CERTIFICATE
	[FORM OF FACE OF SECURITY]
	     THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
	SECURITIES ACT), ANY STATE SECURITIES LAWS OR ANY OTHER APPLICABLE SECURITIES LAW. NEITHER THIS
	SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED,
	PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH
	TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT
	AND ANY APPLICABLE STATE SECURITIES LAWS. THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF
	AGREES TO OFFER, SELL OR OTHERWISE TRANSFER THIS SECURITY ONLY (A) TO THE SPONSOR OR THE TRUST, (B)
	PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C)
	TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER IN A TRANSACTION
	MEETING THE REQUIREMENTS OF RULE 144A SO LONG AS THIS SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO
	RULE 144A IN ACCORDANCE WITH RULE 144A, (D) TO A NON-U.S. PERSON IN AN OFFSHORE TRANSACTION IN
	ACCORDANCE WITH RULE 903 OR RULE 904 (AS APPLICABLE) OF REGULATION S UNDER THE SECURITIES ACT, (E)
	TO AN INSTITUTIONAL ACCREDITED INVESTOR WITHIN THE MEANING OF SUBPARAGRAPH (A) OF RULE 501 UNDER
	THE SECURITIES ACT THAT IS ACQUIRING THIS CAPITAL SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT
	OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR
	FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, OR (F)
	PURSUANT TO ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT,
	SUBJECT TO THE SPONSORS AND THE TRUSTS RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER TO REQUIRE
	THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH
	OF THEM IN ACCORDANCE WITH THE DECLARATION OF TRUST, A COPY OF WHICH MAY BE OBTAINED FROM THE
	SPONSOR OR THE TRUST. HEDGING TRANSACTIONS INVOLVING THIS SECURITY MAY NOT BE CONDUCTED UNLESS IN
	COMPLIANCE WITH THE SECURITIES ACT.
	     THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF ALSO AGREES, REPRESENTS AND WARRANTS THAT
	IT IS NOT AN EMPLOYEE BENEFIT, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER PLAN OR ARRANGEMENT SUBJECT
	TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (ERISA), OR SECTION
	4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE CODE) (EACH A PLAN), OR AN ENTITY
	WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF ANY PLANS INVESTMENT IN THE ENTITY, AND
	NO PERSON INVESTING PLAN ASSETS OF ANY PLAN MAY ACQUIRE OR HOLD THE SECURITIES OR ANY INTEREST
	THEREIN, UNLESS SUCH PURCHASER OR HOLDER IS ELIGIBLE FOR EXEMPTIVE RELIEF AVAILABLE UNDER U.S.
	DEPARTMENT OF LABOR PROHIBITED TRANSACTION CLASS EXEMPTION 96-23, 95-60, 91-38, 90-1 OR 84-14 OR
	ANOTHER APPLICABLE EXEMPTION OR ITS PURCHASE AND HOLDING OF THIS SECURITY IS NOT PROHIBITED BY
	SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE WITH RESPECT TO SUCH PURCHASE OR HOLDING. ANY
	PURCHASER OR HOLDER OF THE SECURITIES OR ANY INTEREST THEREIN WILL BE DEEMED TO HAVE REPRESENTED BY
	ITS PURCHASE AND HOLDING THEREOF THAT EITHER (i) IT IS NOT AN EMPLOYEE BENEFIT PLAN WITHIN THE
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-1-1
 
	 
	MEANING OF SECTION 3(3) OF ERISA, OR A PLAN TO WHICH SECTION 4975 OF THE CODE IS APPLICABLE, A
	TRUSTEE OR OTHER PERSON ACTING ON BEHALF OF AN EMPLOYEE BENEFIT PLAN OR PLAN, OR ANY OTHER PERSON
	OR ENTITY USING THE ASSETS OF ANY EMPLOYEE BENEFIT PLAN OR PLAN TO FINANCE SUCH PURCHASE, OR (ii)
	SUCH PURCHASE WILL NOT RESULT IN A PROHIBITED TRANSACTION UNDER SECTION 406 OF ERISA OR SECTION
	4975 OF THE CODE FOR WHICH THERE IS NO APPLICABLE STATUTORY OR ADMINISTRATIVE EXEMPTION.
	     THIS SECURITY WILL BE ISSUED AND MAY BE TRANSFERRED ONLY IN BLOCKS HAVING A LIQUIDATION AMOUNT
	OF NOT LESS THAN $100,000.00 (100 SECURITIES) AND MULTIPLES OF $1,000.00 IN EXCESS THEREOF. ANY
	ATTEMPTED TRANSFER OF SECURITIES IN A BLOCK HAVING A LIQUIDATION AMOUNT OF LESS THAN $100,000.00
	SHALL BE DEEMED TO BE VOID AND OF NO LEGAL EFFECT WHATSOEVER.
	     THE HOLDER OF THIS SECURITY AGREES THAT IT WILL COMPLY WITH THE FOREGOING RESTRICTIONS.
	     IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL DELIVER TO THE REGISTRAR AND TRANSFER AGENT
	SUCH CERTIFICATES AND OTHER INFORMATION AS MAY BE REQUIRED BY THE DECLARATION TO CONFIRM THAT THE
	TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS.
|  |  |  | 
|  |  |  | 
| Certificate Number P-1 |  | 25,000 Capital Securities | 
| [CUSIP NO. [_______] **
	To be inserted at the request of a subsequent transferee] | 
 
	April 28, 2006
	Certificate Evidencing Floating Rate Capital Securities
	of
	Texas Capital Statutory Trust IV
	(liquidation amount $1,000.00 per Capital Security)
	     Texas Capital Statutory Trust IV, a statutory trust created under the laws of the State of
	Delaware (the Trust), hereby certifies that First Tennessee Bank National Association is the
	registered owner of capital securities of the Trust representing undivided beneficial interests in
	the assets of the Trust, (liquidation amount $1,000.00 per capital security) (the Capital
	Securities). Subject to the Declaration (as defined below), the Capital Securities are
	transferable on the books and records of the Trust in person or by a duly authorized attorney, upon
	surrender of this Certificate duly endorsed and in proper form for transfer. The Capital Securities
	represented hereby are issued pursuant to, and the designation, rights, privileges, restrictions,
	preferences and other terms and provisions of the Capital Securities shall in all respects be
	subject to, the provisions of the Amended and Restated Declaration of Trust of the Trust dated as
	of April 28, 2006, among Joseph M. Grant and Dwain Howard, as Administrators, Wilmington Trust
	Company, as Delaware Trustee, Wilmington Trust Company, as Institutional Trustee, Texas Capital
	Bancshares, Inc., as Sponsor, and the holders from time to time of undivided beneficial interests
	in the assets of the Trust, including the designation of the terms of the Capital Securities as set
	forth in Annex I to such amended and restated declaration as the same may be amended from time to
	time (the Declaration). Capitalized terms used herein but not defined shall have the meaning
	given them in the Declaration. The Holder is entitled to the benefits of the Guarantee to the
	extent provided therein. The Sponsor will provide a copy of the Declaration, the Guarantee, and the
	Indenture to the Holder without charge upon written request to the Sponsor at its principal place
	of business.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-1-2
 
	 
	     Upon receipt of this Security, the Holder is bound by the Declaration and is entitled to the
	benefits thereunder.
	     By acceptance of this Security, the Holder agrees to treat, for United States federal income
	tax purposes, the Debentures as indebtedness and the Capital Securities as evidence of beneficial
	ownership in the Debentures.
	     This Capital Security is governed by, and construed in accordance with, the laws of the State
	of Delaware, without regard to principles of conflict of laws.
	Signatures appear on following page
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-1-3
 
	 
	     IN WITNESS WHEREOF, the Trust has duly executed this certificate.
|  |  |  |  |  |  |  | 
|  |  | TEXAS CAPITAL STATUTORY TRUST IV |  |  | 
| 
	 
 |  |  |  |  |  |  | 
| 
	 
 |  | By: |  |  |  |  | 
| 
	 
 |  |  |  | 
	 
Name: |  |  | 
| 
	 
 |  |  |  | Title: Administrator |  |  | 
 
	CERTIFICATE OF AUTHENTICATION
	     This is one of the Capital Securities referred to in the within-mentioned Declaration.
|  |  |  |  |  |  |  | 
|  |  | WILMINGTON TRUST COMPANY, as the Institutional Trustee
 |  |  | 
| 
	 
 |  |  |  |  |  |  | 
| 
	 
 |  | By: |  |  |  |  | 
| 
	 
 |  |  |  | 
	 
Authorized Officer |  |  | 
 
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-1-4
 
	 
	[FORM OF REVERSE OF CAPITAL SECURITY]
	     Distributions payable on each Capital Security will be payable at an annual rate equal to
	6.74875% beginning on (and including) the date of original issuance and ending on (but excluding)
	the Distribution Payment Date in June 2006 and at an annual rate for each successive period
	beginning on (and including) the Distribution Payment Date in June 2006, and each succeeding
	Distribution Payment Date, and ending on (but excluding) the next succeeding Distribution Payment
	Date (each a Distribution Period), equal to 3-Month LIBOR, determined as described below, plus
	1.60% (the Coupon Rate), applied to the stated liquidation amount of $1,000.00 per Capital
	Security, such rate being the rate of interest payable on the Debentures to be held by the
	Institutional Trustee. Distributions in arrears will bear interest thereon compounded quarterly at
	the Distribution Rate (to the extent permitted by applicable law). The term Distributions as
	used herein includes cash distributions and any such compounded distributions unless otherwise
	noted. A Distribution is payable only to the extent that payments are made in respect of the
	Debentures held by the Institutional Trustee and to the extent the Institutional Trustee has funds
	available therefor. As used herein, Determination Date means the date that is two London Banking
	Days (i.e., a business day in which dealings in deposits in U.S. dollars are transacted in the
	London interbank market) preceding the commencement of the relevant Distribution Period. The
	amount of the Distribution payable for any Distribution Period will be calculated by applying the
	Distribution Rate to the stated liquidation amount outstanding at the commencement of the
	Distribution Period on the basis of the actual number of days in the Distribution Period concerned
	divided by 360.
	     3-Month LIBOR as used herein, means the London interbank offered interest rate for
	three-month U.S. dollar deposits determined by the Debenture Trustee in the following order of
	priority: (i) the rate (expressed as a percentage per annum) for U.S. dollar deposits having a
	three-month maturity that appears on Telerate Page 3750 as of 11:00 a.m. (London time) on the
	related Determination Date (Telerate Page 3750 means the display designated as Page 3750 on the
	Moneyline Telerate Service or such other page as may replace Page 3750 on that service or such
	other service or services as may be nominated by the British Bankers Association as the
	information vendor for the purpose of displaying London interbank offered rates for U.S. dollar
	deposits); (ii) if such rate cannot be identified on the related Determination Date, the Debenture
	Trustee will request the principal London offices of four leading banks in the London interbank
	market to provide such banks offered quotations (expressed as percentages per annum) to prime
	banks in the London interbank market for U.S. dollar deposits having a three-month maturity as of
	11:00 a.m. (London time) on such Determination Date. If at least two quotations are provided,
	3-Month LIBOR will be the arithmetic mean of such quotations; (iii) if fewer than two such
	quotations are provided as requested in clause (ii) above, the Debenture Trustee will request four
	major New York City banks to provide such banks offered quotations (expressed as percentages per
	annum) to leading European banks for loans in U.S. dollars as of 11:00 a.m. (London time) on such
	Determination Date. If at least two such quotations are provided, 3-Month LIBOR will be the
	arithmetic mean of such quotations; and (iv) if fewer than two such quotations are provided as
	requested in clause (iii) above, 3-Month LIBOR will be a 3-Month LIBOR determined with respect to
	the Distribution Period immediately preceding such current Distribution Period. If the rate for
	U.S. dollar deposits having a three-month maturity that initially appears on Telerate Page 3750 as
	of 11:00 a.m. (London time) on the related Determination Date is superseded on the Telerate Page
	3750 by a corrected rate by 12:00 noon (London time) on such Determination Date, then the corrected
	rate as so substituted on the applicable page will be the applicable 3-Month LIBOR for such
	Determination Date.
	     The Distribution Rate for any Distribution Period will at no time be higher than the maximum
	rate then permitted by New York law as the same may be modified by United States law.
	     All percentages resulting from any calculations on the Capital Securities will be rounded, if
	necessary, to the nearest one hundred-thousandth of a percentage point, with five one-millionths of
	a percentage point rounded upward (e.g., 9.876545% (or .09876545) being rounded to 9.87655% (or
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-1-5
 
	 
	.0987655), and all dollar amounts used in or resulting from such calculation will be rounded
	to the nearest cent (with one-half cent being rounded upward)).
	     Except as otherwise described below, Distributions on the Capital Securities will be
	cumulative, will accrue from the date of original issuance and will be payable quarterly in arrears
	on March 15, June 15, September 15 and December 15 of each year or if any such day is not a
	Business Day, then the next succeeding Business Day (each such day, a Distribution Payment Date)
	(it being understood that interest accrues for any such non-Business Day), commencing on the
	Distribution Payment Date in June 2006. The Debenture Issuer has the right under the Indenture to
	defer payments of interest on the Debentures, so long as no Acceleration Event of Default has
	occurred and is continuing, by extending the interest payment period for up to 20 consecutive
	quarterly periods (each an Extension Period) at any time and from time to time on the Debentures,
	subject to the conditions described below, during which Extension Period no interest shall be due
	and payable. During any Extension Period, interest will continue to accrue on the Debentures, and
	interest on such accrued interest will accrue at an annual rate equal to the Distribution Rate in
	effect for each such Extension Period, compounded quarterly from the date such interest would have
	been payable were it not for the Extension Period, to the extent permitted by law (such interest
	referred to herein as Additional Interest). No Extension Period may end on a date other than a
	Distribution Payment Date. At the end of any such Extension Period, the Debenture Issuer shall pay
	all interest then accrued and unpaid on the Debentures (together with Additional Interest thereon);
	provided
	,
	however
	, that no Extension Period may extend beyond the Maturity Date.
	Prior to the termination of any Extension Period, the Debenture Issuer may further extend such
	period, provided that such period together with all such previous and further consecutive
	extensions thereof shall not exceed 20 consecutive quarterly periods, or extend beyond the Maturity
	Date. Upon the termination of any Extension Period and upon the payment of all accrued and unpaid
	interest and Additional Interest, the Debenture Issuer may commence a new Extension Period, subject
	to the foregoing requirements. No interest or Additional Interest shall be due and payable during
	an Extension Period, except at the end thereof, but each installment of interest that would
	otherwise have been due and payable during such Extension Period shall bear Additional Interest.
	During any Extension Period, Distributions on the Capital Securities shall be deferred for a period
	equal to the Extension Period. If Distributions are deferred, the Distributions due shall be paid
	on the date that the related Extension Period terminates, to Holders of the Securities as they
	appear on the books and records of the Trust on the record date immediately preceding such date.
	Distributions on the Securities must be paid on the dates payable (after giving effect to any
	Extension Period) to the extent that the Trust has funds available for the payment of such
	distributions in the Property Account of the Trust. The Trusts funds available for Distribution
	to the Holders of the Securities will be limited to payments received from the Debenture Issuer.
	The payment of Distributions out of moneys held by the Trust is guaranteed by the Guarantor
	pursuant to the Guarantee.
	     The Capital Securities shall be redeemable as provided in the Declaration.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-1-6
 
	 
	ASSIGNMENT
	     FOR VALUE RECEIVED, the undersigned assigns and transfers this Capital Security Certificate
	to:
|  |  |  | 
| 
	     (Insert assignees social security or tax identification number)
 |  |  | 
| 
	 
 |  |  | 
 
	     (Insert address and zip code of assignee) and irrevocably appoints
	     agent to transfer this Capital Security Certificate on the books of the Trust. The agent may
	substitute another to act for him or her.
	          (Sign exactly as your name appears on the other side of this Capital Security Certificate)
	     Signature Guarantee:
	1
|  |  |  | 
| 1 |  | Signature must be guaranteed by an
	eligible guarantor institution that is a bank, stockbroker,
	savings and loan association or credit union meeting the requirements of the
	Security registrar, which requirements include membership or participation in
	the Securities Transfer Agents Medallion Program (STAMP) or such
	other signature guarantee program as may be determined by the
	Security registrar in addition to, or in substitution for, STAMP, all in
	accordance with the Securities Exchange Act of 1934, as amended. | 
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-1-7
 
	 
	EXHIBIT A-2
	FORM OF COMMON SECURITY CERTIFICATE
	     THIS COMMON SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND
	MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO AN EXEMPTION FROM
	REGISTRATION.
	     THIS CERTIFICATE IS NOT TRANSFERABLE EXCEPT IN COMPLIANCE WITH SECTION 8.1 OF THE DECLARATION.
|  |  |  | 
|  |  |  | 
| Certificate Number C-1 |  | 774 Common Securities | 
 
	April 28, 2006
	Certificate Evidencing Floating Rate Common Securities
	of
	Texas Capital Statutory Trust IV
	     Texas Capital Statutory Trust IV, a statutory trust created under the laws of the State of
	Delaware (the Trust), hereby certifies that Texas Capital Bancshares, Inc. (the Holder) is the
	registered owner of common securities of the Trust representing undivided beneficial interests in
	the assets of the Trust (the Common Securities). The Common Securities represented hereby are
	issued pursuant to, and the designation, rights, privileges, restrictions, preferences and other
	terms and provisions of the Common Securities shall in all respects be subject to, the provisions
	of the Amended and Restated Declaration of Trust of the Trust dated as of April 28, 2006, among
	Joseph M. Grant and Dwain Howard, as Administrators, Wilmington Trust Company, as Delaware Trustee,
	Wilmington Trust Company, as Institutional Trustee, Texas Capital Bancshares, Inc., as Sponsor, and
	the holders from time to time of undivided beneficial interest in the assets of the Trust including
	the designation of the terms of the Common Securities as set forth in Annex I to such amended and
	restated declaration, as the same may be amended from time to time (the Declaration).
	Capitalized terms used herein but not defined shall have the meaning given them in the Declaration.
	The Holder is entitled to the benefits of the Guarantee to the extent provided therein. The
	Sponsor will provide a copy of the Declaration, the Guarantee and the Indenture to the Holder
	without charge upon written request to the Sponsor at its principal place of business.
	     As set forth in the Declaration, when an Event of Default has occurred and is continuing, the
	rights of Holders of Common Securities to payment in respect of Distributions and payments upon
	Liquidation, redemption or otherwise are subordinated to the rights of payment of Holders of the
	Capital Securities.
	     Upon receipt of this Certificate, the Holder is bound by the Declaration and is entitled to
	the benefits thereunder.
	     By acceptance of this Certificate, the Holder agrees to treat, for United States federal
	income tax purposes, the Debentures as indebtedness and the Common Securities as evidence of
	undivided beneficial ownership in the Debentures.
	     This Common Security is governed by, and construed in accordance with, the laws of the State
	of Delaware, without regard to principles of conflict of laws.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-2-1
 
	 
	     IN WITNESS WHEREOF, the Trust has duly executed this certificate.
|  |  |  |  |  |  |  | 
|  |  | TEXAS CAPITAL STATUTORY TRUST IV | 
| 
	 
 |  |  |  |  |  |  | 
| 
	 
 |  | By: |  |  |  |  | 
| 
	 
 |  |  |  | 
	 
Name: |  |  | 
| 
	 
 |  |  |  | Title: Administrator |  |  | 
 
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-2-2
 
	 
	[FORM OF REVERSE OF COMMON SECURITY]
	     Distributions payable on each Common Security will be payable at an annual rate equal to
	6.74875% beginning on (and including) the date of original issuance and ending on (but excluding)
	the Distribution Payment Date in June 2006 and at an annual rate for each successive period
	beginning on (and including) the Distribution Payment Date in June 2006, and each succeeding
	Distribution Payment Date, and ending on (but excluding) the next succeeding Distribution Payment
	Date (each a Distribution Period), equal to 3
	-
	Month LIBOR, determined as described below, plus
	1.60% (the Coupon Rate), applied to the stated liquidation amount of $1,000.00 per Common
	Security, such rate being the rate of interest payable on the Debentures to be held by the
	Institutional Trustee. Distributions in arrears will bear interest thereon compounded quarterly at
	the Distribution Rate (to the extent permitted by applicable law). The term Distributions as
	used herein includes cash distributions and any such compounded distributions unless otherwise
	noted. A Distribution is payable only to the extent that payments are made in respect of the
	Debentures held by the Institutional Trustee and to the extent the Institutional Trustee has funds
	available therefor. As used herein, Determination Date means the date that is two London Banking
	Days (i.e., a business day in which dealings in deposits in U.S. dollars are transacted in the
	London interbank market) preceding the commencement of the relevant Distribution Period. The
	amount of the Distribution payable for any Distribution Period will be calculated by applying the
	Distribution Rate to the stated liquidation amount outstanding at the commencement of the
	Distribution Period on the basis of the actual number of days in the Distribution Period concerned
	divided by 360.
	     3
	-
	Month LIBOR as used herein, means the London interbank offered interest rate for
	three
	-
	month U.S. dollar deposits determined by the Debenture Trustee in the following order of
	priority: (i) the rate (expressed as a percentage per annum) for U.S. dollar deposits having a
	three
	-
	month maturity that appears on Telerate Page 3750 as of 11:00 a.m. (London time) on the
	related Determination Date (Telerate Page 3750 means the display designated as Page 3750 on the
	Moneyline Telerate Service or such other page as may replace Page 3750 on that service or such
	other service or services as may be nominated by the British Bankers Association as the
	information vendor for the purpose of displaying London interbank offered rates for U.S. dollar
	deposits); (ii) if such rate cannot be identified on the related Determination Date, the Debenture
	Trustee will request the principal London offices of four leading banks in the London interbank
	market to provide such banks offered quotations (expressed as percentages per annum) to prime
	banks in the London interbank market for U.S. dollar deposits having a three
	-
	month maturity as of
	11:00 a.m. (London time) on such Determination Date. If at least two quotations are provided,
	3
	-
	Month LIBOR will be the arithmetic mean of such quotations; (iii) if fewer than two such
	quotations are provided as requested in clause (ii) above, the Debenture Trustee will request four
	major New York City banks to provide such banks offered quotations (expressed as percentages per
	annum) to leading European banks for loans in U.S. dollars as of 11:00 a.m. (London time) on such
	Determination Date. If at least two such quotations are provided, 3
	-
	Month LIBOR will be the
	arithmetic mean of such quotations; and (iv) if fewer than two such quotations are provided as
	requested in clause (iii) above, 3
	-
	Month LIBOR will be a 3
	-
	Month LIBOR determined with respect to
	the Distribution Period immediately preceding such current Distribution Period. If the rate for
	U.S. dollar deposits having a three
	-
	month maturity that initially appears on Telerate Page 3750 as
	of 11:00 a.m. (London time) on the related Determination Date is superseded on the Telerate Page
	3750 by a corrected rate by 12:00 noon (London time) on such Determination Date, then the corrected
	rate as so substituted on the applicable page will be the applicable 3
	-
	Month LIBOR for such
	Determination Date.
	     The Distribution Rate for any Distribution Period will at no time be higher than the maximum
	rate then permitted by New York law as the same may be modified by United States law.
	     All percentages resulting from any calculations on the Common Securities will be rounded, if
	necessary, to the nearest one hundred
	-
	thousandth of a percentage point, with five one
	-
	millionths of
	a percentage point rounded upward (e.g., 9.876545% (or .09876545) being rounded to 9.87655% (or
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-2-3
 
	 
	.0987655), and all dollar amounts used in or resulting from such calculation will be rounded
	to the nearest cent (with one
	-
	half cent being rounded upward)).
	     Except as otherwise described below, Distributions on the Common Securities will be
	cumulative, will accrue from the date of original issuance and will be payable quarterly in arrears
	on March 15, June 15, September 15 and December 15 of each year or if any such day is not a
	Business Day, then the next succeeding Business Day (each such day, a Distribution Payment Date)
	(it being understood that interest accrues for any such non-Business Day), commencing on the
	Distribution Payment Date in June 2006. The Debenture Issuer has the right under the Indenture to
	defer payments of interest on the Debentures, so long as no Acceleration Event of Default has
	occurred and is continuing, by extending the interest payment period for up to 20 consecutive
	quarterly periods (each an Extension Period) at any time and from time to time on the Debentures,
	subject to the conditions described below, during which Extension Period no interest shall be due
	and payable. During any Extension Period, interest will continue to accrue on the Debentures, and
	interest on such accrued interest will accrue at an annual rate equal to the Distribution Rate in
	effect for each such Extension Period, compounded quarterly from the date such interest would have
	been payable were it not for the Extension Period, to the extent permitted by law (such interest
	referred to herein as Additional Interest). No Extension Period may end on a date other than a
	Distribution Payment Date. At the end of any such Extension Period, the Debenture Issuer shall pay
	all interest then accrued and unpaid on the Debentures (together with Additional Interest thereon);
	provided
	,
	however
	, that no Extension Period may extend beyond the Maturity Date.
	Prior to the termination of any Extension Period, the Debenture Issuer may further extend such
	period, provided that such period together with all such previous and further consecutive
	extensions thereof shall not exceed 20 consecutive quarterly periods, or extend beyond the Maturity
	Date. Upon the termination of any Extension Period and upon the payment of all accrued and unpaid
	interest and Additional Interest, the Debenture Issuer may commence a new Extension Period, subject
	to the foregoing requirements. No interest or Additional Interest shall be due and payable during
	an Extension Period, except at the end thereof, but each installment of interest that would
	otherwise have been due and payable during such Extension Period shall bear Additional Interest.
	During any Extension Period, Distributions on the Common Securities shall be deferred for a period
	equal to the Extension Period. If Distributions are deferred, the Distributions due shall be paid
	on the date that the related Extension Period terminates, to Holders of the Securities as they
	appear on the books and records of the Trust on the record date immediately preceding such date.
	Distributions on the Securities must be paid on the dates payable (after giving effect to any
	Extension Period) to the extent that the Trust has funds available for the payment of such
	distributions in the Property Account of the Trust. The Trusts funds available for Distribution to
	the Holders of the Securities will be limited to payments received from the Debenture Issuer.
	     The Common Securities shall be redeemable as provided in the Declaration.
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-2-4
 
	 
	ASSIGNMENT
	     FOR VALUE RECEIVED, the undersigned assigns and transfers this Common Security Certificate to:
	     (Insert assignees social security or tax identification number)
	     (Insert address and zip code of assignee) and irrevocably appoints
|  |  |  |  |  |  |  | 
|  |  |  | 
|  |  | agent to transfer this Common Security Certificate on the books of the
	Trust. The agent may substitute another to act for him or her. | 
| 
	 
 |  |  |  |  |  |  | 
| 
	 
 |  | Date: |  |  |  |  | 
| 
	 
 |  |  |  | 
	 
 |  |  | 
| 
	 
 |  |  |  |  |  |  | 
| 
	 
 |  | Signature: |  |  |  |  | 
| 
	 
 |  |  |  | 
	 
 |  |  | 
| 
	 
 |  |  |  |  |  |  | 
|  |  | (Sign exactly as your name appears on the other side of this Common Security
	Certificate) | 
| 
	 
 |  |  |  |  |  |  | 
| 
	 
 |  | Signature: |  |  |  |  | 
| 
	 
 |  |  |  | 
	 
 |  |  | 
| 
	 
 |  |  |  |  |  |  | 
|  |  | (Sign exactly as your name appears on the other side of this Common Security
	Certificate) | 
 
	     Signature Guarantee
	2
|  |  |  | 
| 2 |  | Signature must be guaranteed by an
	eligible guarantor institution that is a bank, stockbroker,
	savings and loan association or credit union, meeting the requirements of the
	Security registrar, which requirements include membership or participation in
	the Securities Transfer Agents Medallion Program (STAMP) or such
	other signature guarantee program as may be determined by the
	Security registrar in addition to, or in substitution for, STAMP, all in
	accordance with the Securities Exchange Act of 1934, as amended. | 
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	A-2-5
 
	 
	EXHIBIT B
	SPECIMEN OF INITIAL DEBENTURE
	(See Document No. 17)
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	B-1
 
	 
	EXHIBIT C
	PLACEMENT AGREEMENT
	(See Document No. 1)
	Texas Capital Bancshares, Inc./Amended and Restated Declaration of Trust
	C-1
 
	 
	Exhibit 10.2
	TEXAS CAPITAL BANCSHARES, INC.,
	as Issuer
	INDENTURE
	Dated as of April 28, 2006
	WILMINGTON TRUST COMPANY,
	as Trustee
	FLOATING RATE JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURES
	DUE 2036
	Texas Capital Bancshares, Inc./Indenture
	 
 
	 
	TABLE OF CONTENTS
|  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  | Page |  | 
| ARTICLE I. DEFINITIONS |  |  | 1 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 1.1. |  | Definitions |  |  | 1 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE II. DEBENTURES |  |  | 8 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 2.1. |  | Authentication and Dating |  |  | 8 |  | 
| 
	 
 |  | Section 2.2. |  | Form of Trustees Certificate of Authentication |  |  | 8 |  | 
| 
	 
 |  | Section 2.3. |  | Form and Denomination of Debentures |  |  | 9 |  | 
| 
	 
 |  | Section 2.4. |  | Execution of Debentures |  |  | 9 |  | 
| 
	 
 |  | Section 2.5. |  | Exchange and Registration of Transfer of Debentures |  |  | 9 |  | 
| 
	 
 |  | Section 2.6. |  | Mutilated, Destroyed, Lost or Stolen Debentures |  |  | 11 |  | 
| 
	 
 |  | Section 2.7. |  | Temporary Debentures |  |  | 12 |  | 
| 
	 
 |  | Section 2.8. |  | Payment of Interest and Additional Interest |  |  | 12 |  | 
| 
	 
 |  | Section 2.9. |  | Cancellation of Debentures Paid, etc. |  |  | 13 |  | 
| 
	 
 |  | Section 2.10. |  | Computation of Interest |  |  | 14 |  | 
| 
	 
 |  | Section 2.11. |  | Extension of Interest Payment Period |  |  | 15 |  | 
| 
	 
 |  | Section 2.12. |  | CUSIP Numbers |  |  | 16 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE III. PARTICULAR COVENANTS OF THE COMPANY |  |  | 16 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 3.1. |  | Payment of Principal, Premium and Interest; Agreed Treatment of the Debentures |  |  | 16 |  | 
| 
	 
 |  | Section 3.2. |  | Offices for Notices and Payments, etc. |  |  | 17 |  | 
| 
	 
 |  | Section 3.3. |  | Appointments to Fill Vacancies in Trustees Office |  |  | 17 |  | 
| 
	 
 |  | Section 3.4. |  | Provision as to Paying Agent |  |  | 17 |  | 
| 
	 
 |  | Section 3.5. |  | Certificate to Trustee |  |  | 18 |  | 
| 
	 
 |  | Section 3.6. |  | Additional Sums |  |  | 18 |  | 
| 
	 
 |  | Section 3.7. |  | Compliance with Consolidation Provisions |  |  | 19 |  | 
| 
	 
 |  | Section 3.8. |  | Limitation on Dividends |  |  | 19 |  | 
| 
	 
 |  | Section 3.9. |  | Covenants as to the Trust |  |  | 19 |  | 
| 
	 
 |  | Section 3.10. |  | Additional Junior Indebtedness |  |  | 20 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE IV. SECURITYHOLDERS LISTS AND REPORTS BY THE COMPANY AND THE TRUSTEE |  |  | 20 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 4.1. |  | Securityholders Lists |  |  | 20 |  | 
| 
	 
 |  | Section 4.2. |  | Preservation and Disclosure of Lists |  |  | 20 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE V. REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS UPON AN EVENT OF DEFAULT |  |  | 21 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 5.1. |  | Events of Default |  |  | 21 |  | 
| 
	 
 |  | Section 5.2. |  | Payment of Debentures on Default; Suit Therefor |  |  | 23 |  | 
| 
	 
 |  | Section 5.3. |  | Application of Moneys Collected by Trustee |  |  | 24 |  | 
| 
	 
 |  | Section 5.4. |  | Proceedings by Securityholders |  |  | 24 |  | 
| 
	 
 |  | Section 5.5. |  | Proceedings by Trustee |  |  | 25 |  | 
| 
	 
 |  | Section 5.6. |  | Remedies Cumulative and Continuing; Delay or Omission Not a Waiver |  |  | 25 |  | 
 
	Texas Capital Bancshares, Inc./Indenture
	i
 
	 
|  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  | Page |  | 
| 
	 
 |  | Section 5.7. |  | Direction of Proceedings and Waiver of Defaults by Majority of Securityholders |  |  | 25 |  | 
| 
	 
 |  | Section 5.8. |  | Notice of Defaults |  |  | 26 |  | 
| 
	 
 |  | Section 5.9. |  | Undertaking to Pay Costs |  |  | 26 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE VI. CONCERNING THE TRUSTEE |  |  | 26 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 6.1. |  | Duties and Responsibilities of Trustee |  |  | 26 |  | 
| 
	 
 |  | Section 6.2. |  | Reliance on Documents, Opinions, etc. |  |  | 27 |  | 
| 
	 
 |  | Section 6.3. |  | No Responsibility for Recitals, etc. |  |  | 28 |  | 
| 
	 
 |  | Section 6.4. |  | Trustee, Authenticating Agent, Paying Agents, Transfer Agents or Registrar May Own Debentures |  |  | 28 |  | 
| 
	 
 |  | Section 6.5. |  | Moneys to be Held in Trust |  |  | 29 |  | 
| 
	 
 |  | Section 6.6. |  | Compensation and Expenses of Trustee |  |  | 29 |  | 
| 
	 
 |  | Section 6.7. |  | Officers Certificate as Evidence |  |  | 29 |  | 
| 
	 
 |  | Section 6.8. |  | Eligibility of Trustee |  |  | 30 |  | 
| 
	 
 |  | Section 6.9. |  | Resignation or Removal of Trustee |  |  | 30 |  | 
| 
	 
 |  | Section 6.10. |  | Acceptance by Successor Trustee |  |  | 31 |  | 
| 
	 
 |  | Section 6.11. |  | Succession by Merger, etc. |  |  | 32 |  | 
| 
	 
 |  | Section 6.12. |  | Authenticating Agents |  |  | 32 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE VII. CONCERNING THE SECURITYHOLDERS |  |  | 33 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 7.1. |  | Action by Securityholders |  |  | 33 |  | 
| 
	 
 |  | Section 7.2. |  | Proof of Execution by Securityholders |  |  | 33 |  | 
| 
	 
 |  | Section 7.3. |  | Who Are Deemed Absolute Owners |  |  | 34 |  | 
| 
	 
 |  | Section 7.4. |  | Debentures Owned by Company Deemed Not Outstanding |  |  | 34 |  | 
| 
	 
 |  | Section 7.5. |  | Revocation of Consents; Future Holders Bound |  |  | 34 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE VIII. SECURITYHOLDERS MEETINGS |  |  | 35 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 8.1. |  | Purposes of Meetings |  |  | 35 |  | 
| 
	 
 |  | Section 8.2. |  | Call of Meetings by Trustee |  |  | 35 |  | 
| 
	 
 |  | Section 8.3. |  | Call of Meetings by Company or Securityholders |  |  | 35 |  | 
| 
	 
 |  | Section 8.4. |  | Qualifications for Voting |  |  | 35 |  | 
| 
	 
 |  | Section 8.5. |  | Regulations |  |  | 35 |  | 
| 
	 
 |  | Section 8.6. |  | Voting |  |  | 36 |  | 
| 
	 
 |  | Section 8.7. |  | Quorum; Actions |  |  | 36 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE IX. SUPPLEMENTAL INDENTURES |  |  | 37 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 9.1. |  | Supplemental Indentures without Consent of Securityholders |  |  | 37 |  | 
| 
	 
 |  | Section 9.2. |  | Supplemental Indentures with Consent of Securityholders |  |  | 38 |  | 
| 
	 
 |  | Section 9.3. |  | Effect of Supplemental Indentures |  |  | 39 |  | 
| 
	 
 |  | Section 9.4. |  | Notation on Debentures |  |  | 39 |  | 
| 
	 
 |  | Section 9.5. |  | Evidence of Compliance of Supplemental Indenture to be Furnished to Trustee |  |  | 39 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE X. REDEMPTION OF SECURITIES |  |  | 39 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 10.1. |  | Optional Redemption |  |  | 39 |  | 
| 
	 
 |  | Section 10.2. |  | Special Event Redemption |  |  | 39 |  | 
| 
	 
 |  | Section 10.3. |  | Notice of Redemption; Selection of Debentures |  |  | 40 |  | 
| 
	 
 |  | Section 10.4. |  | Payment of Debentures Called for Redemption |  |  | 40 |  | 
 
	Texas Capital Bancshares, Inc./Indenture
	ii 
 
	 
|  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  | Page |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE XI. CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE |  |  | 41 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 11.1. |  | Company May Consolidate, etc., on Certain Terms |  |  | 41 |  | 
| 
	 
 |  | Section 11.2. |  | Successor Entity to be Substituted |  |  | 41 |  | 
| 
	 
 |  | Section 11.3. |  | Opinion of Counsel to be Given to Trustee |  |  | 41 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE XII. SATISFACTION AND DISCHARGE OF INDENTURE |  |  | 42 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 12.1. |  | Discharge of Indenture |  |  | 42 |  | 
| 
	 
 |  | Section 12.2. |  | Deposited Moneys to be Held in Trust by Trustee |  |  | 42 |  | 
| 
	 
 |  | Section 12.3. |  | Paying Agent to Repay Moneys Held |  |  | 42 |  | 
| 
	 
 |  | Section 12.4. |  | Return of Unclaimed Moneys |  |  | 42 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE XIII. IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS |  |  | 43 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 13.1. |  | Indenture and Debentures Solely Corporate Obligations |  |  | 43 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE XIV. MISCELLANEOUS PROVISIONS |  |  | 43 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| 
	 
 |  | Section 14.1. |  | Successors |  |  | 43 |  | 
| 
	 
 |  | Section 14.2. |  | Official Acts by Successor Entity |  |  | 43 |  | 
| 
	 
 |  | Section 14.3. |  | Surrender of Company Powers |  |  | 43 |  | 
| 
	 
 |  | Section 14.4. |  | Addresses for Notices, etc. |  |  | 43 |  | 
| 
	 
 |  | Section 14.5. |  | Governing Law |  |  | 44 |  | 
| 
	 
 |  | Section 14.6. |  | Evidence of Compliance with Conditions Precedent |  |  | 44 |  | 
| 
	 
 |  | Section 14.7. |  | Table of Contents, Headings, etc. |  |  | 44 |  | 
| 
	 
 |  | Section 14.8. |  | Execution in Counterparts |  |  | 44 |  | 
| 
	 
 |  | Section 14.9. |  | Separability |  |  | 44 |  | 
| 
	 
 |  | Section 14.10. |  | Assignment |  |  | 44 |  | 
| 
	 
 |  | Section 14.11. |  | Acknowledgment of Rights |  |  | 44 |  | 
| 
	 
 |  |  |  |  |  |  |  |  | 
| ARTICLE XV. SUBORDINATION OF DEBENTURES |  |  | 45 |  | 
| 
	 
 |  | Section 15.1. |  | Agreement to Subordinate |  |  | 45 |  | 
| 
	 
 |  | Section 15.2. |  | Default on Senior Indebtedness |  |  | 45 |  | 
| 
	 
 |  | Section 15.3. |  | Liquidation, Dissolution, Bankruptcy |  |  | 45 |  | 
| 
	 
 |  | Section 15.4. |  | Subrogation |  |  | 46 |  | 
| 
	 
 |  | Section 15.5. |  | Trustee to Effectuate Subordination |  |  | 47 |  | 
| 
	 
 |  | Section 15.6. |  | Notice by the Company |  |  | 47 |  | 
| 
	 
 |  | Section 15.7. |  | Rights of the Trustee; Holders of Senior Indebtedness |  |  | 48 |  | 
| 
	 
 |  | Section 15.8. |  | Subordination May Not Be Impaired |  |  | 48 |  | 
 
	Exhibit A      Form of Floating Rate Junior Subordinated Deferrable Interest Debenture
	Exhibit B      Form of Certificate to Trustee
	Texas Capital Bancshares, Inc./Indenture
	 iii 
	 
 
	 
	     THIS INDENTURE, dated as of April 28, 2006, between Texas Capital Bancshares, Inc., a Delaware
	corporation (the 
	Company
	), and Wilmington Trust Company, a Delaware banking corporation,
	as debenture trustee (the 
	Trustee
	).
	WITNESSETH:
	     WHEREAS, for its lawful corporate purposes, the Company has duly authorized the issuance of
	its Floating Rate Junior Subordinated Deferrable Interest Debentures due 2036 (the
	
	Debentures
	) under this Indenture to provide, among other things, for the execution and
	authentication, delivery and administration thereof, and the Company has duly authorized the
	execution of this Indenture; and
	     WHEREAS, all acts and things necessary to make this Indenture a valid agreement according to
	its terms, have been done and performed;
	     NOW, THEREFORE, This Indenture Witnesseth:
	     In consideration of the premises, and the purchase of the Debentures by the holders thereof,
	the Company covenants and agrees with the Trustee for the equal and proportionate benefit of the
	respective holders from time to time of the Debentures as follows:
	ARTICLE I.
	DEFINITIONS
	     
	Section 1.1.
	Definitions
	.
	The terms defined in this Section 1.1 (except as herein otherwise expressly provided or unless
	the context otherwise requires) for all purposes of this Indenture and of any indenture
	supplemental hereto shall have the respective meanings specified in this Section 1.1. All
	accounting terms used herein and not expressly defined shall have the meanings assigned to such
	terms in accordance with generally accepted accounting principles and the term generally accepted
	accounting principles means such accounting principles as are generally accepted in the United
	States at the time of any computation. The words herein, hereof and hereunder and other
	words of similar import refer to this Indenture as a whole and not to any particular Article,
	Section or other subdivision.
	     
	Acceleration Event of Default
	 means an Event of Default under Section 5.1(a), (d),
	(e) or (f), whatever the reason for such Acceleration Event of Default and whether it shall be
	voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or
	order of any court or any order, rule or regulation of any administrative or governmental body.
	     
	Additional Interest
	 has the meaning set forth in Section 2.11.
	     
	Additional Junior Indebtedness
	 means, without duplication and other than the
	Debentures, any indebtedness, liabilities or obligations of the Company, or any Subsidiary of the
	Company, under debt securities (or guarantees in respect of debt securities) initially issued after
	the date of this Indenture to any trust, or a trustee of a trust, partnership or other entity
	affiliated with the Company that is, directly or indirectly, a finance subsidiary (as such term is
	defined in Rule 3a-5 under the Investment Company Act of 1940) or other financing vehicle of the
	Company or any Subsidiary of the Company in connection with the issuance by that entity of
	preferred securities or other securities that are eligible to qualify for Tier 1 capital treatment
	(or its then equivalent) for purposes of the capital adequacy guidelines of the Federal Reserve, as
	then in effect and applicable to the Company (or, if the Company is not a bank holding company,
	such guidelines applied to the Company as if the Company were subject to such guidelines);
	provided
	,
	however
	, that the inability of the Company to treat all or any portion of
	the Additional Junior
	Indebtedness as Tier 1 capital shall not disqualify it as Additional Junior Indebtedness if
	such inability results from the Company having cumulative preferred stock, minority interests in
	consolidated
	Texas Capital Bancshares, Inc./Indenture
	1
 
	 
	subsidiaries, or any other class of security or interest which the Federal Reserve now
	or may hereafter accord Tier 1 capital treatment (including the Debentures) in excess of the amount
	which may qualify for treatment as Tier 1 capital under applicable capital adequacy guidelines.
	     
	Additional Sums
	 has the meaning set forth in Section 3.6.
	     
	Affiliate
	 has the same meaning as given to that term in Rule 405 of the Securities
	Act or any successor rule thereunder.
	     
	Authenticating Agent
	 means any agent or agents of the Trustee which at the time
	shall be appointed and acting pursuant to Section 6.12.
	     
	Bankruptcy Law
	 means Title 11, U.S. Code, or any similar federal or state law for
	the relief of debtors.
	     
	Board of Directors
	 means the board of directors or the executive committee or any
	other duly authorized designated officers of the Company.
	     
	Board Resolution
	 means a copy of a resolution certified by the Secretary or an
	Assistant Secretary of the Company to have been duly adopted by the Board of Directors and to be in
	full force and effect on the date of such certification and delivered to the Trustee.
	     
	Business Day
	 means any day other than a Saturday, Sunday or any other day on which
	banking institutions in New York City or Wilmington, Delaware are permitted or required by any
	applicable law or executive order to close.
	     
	Capital Securities
	 means undivided beneficial interests in the assets of the Trust
	which rank
	pari passu
	with Common Securities issued by the Trust;
	provided
	,
	however
	, that upon the occurrence and continuance of an Event of Default (as defined in the
	Declaration), the rights of holders of such Common Securities to payment in respect of
	distributions and payments upon liquidation, redemption and otherwise are subordinated to the
	rights of holders of such Capital Securities.
	     
	Capital Securities Guarantee
	 means the guarantee agreement that the Company enters
	into with Wilmington Trust Company, as guarantee trustee, or other Persons that operates directly
	or indirectly for the benefit of holders of Capital Securities of the Trust.
	     
	Capital Treatment Event
	 means the receipt by the Company and the Trust of an opinion
	of counsel experienced in such matters to the effect that, as a result of the occurrence of any
	amendment to, or change (including any announced prospective change) in, the laws, rules or
	regulations of the United States or any political subdivision thereof or therein, or as the result
	of any official or administrative pronouncement or action or decision interpreting or applying such
	laws, rules or regulations, which amendment or change is effective or which pronouncement, action
	or decision is announced on or after the date of original issuance of the Debentures, there is more
	than an insubstantial risk that the Company will not, within 90 days of the date of such opinion,
	be entitled to treat an amount equal to the aggregate liquidation amount of the Capital Securities
	as Tier 1 Capital (or its then equivalent) for purposes of the capital adequacy guidelines of the
	Federal Reserve, as then in effect and applicable to the Company (or if the Company is not a bank
	holding company or is otherwise not subject to the Federal Reserves risk-based capital adequacy
	guidelines, such guidelines applied to the Company as if the Company were subject to such
	guidelines);
	provided
	,
	however
	, that the inability of the Company to treat all or
	any portion of the liquidation amount of the Capital Securities as Tier l Capital shall not
	constitute the basis
	for a Capital Treatment Event, if such inability results from the Company having cumulative
	preferred stock, minority interests in consolidated subsidiaries, or any other class of security or
	interest which the
	Texas Capital Bancshares, Inc./Indenture
	2
 
	 
	Federal Reserve or OTS, as applicable, may now or hereafter accord Tier 1
	Capital treatment in excess of the amount which may now or hereafter qualify for treatment as Tier
	1 Capital under applicable capital adequacy guidelines;
	provided
	further
	,
	however
	, that the distribution of Debentures in connection with the liquidation of the
	Trust shall not in and of itself constitute a Capital Treatment Event unless such liquidation shall
	have occurred in connection with a Tax Event or an Investment Company Event.
	     
	Certificate
	 means a certificate signed by any one of the principal executive
	officer, the principal financial officer or the principal accounting officer of the Company.
	     
	Common Securities
	 means undivided beneficial interests in the assets of the Trust
	which rank
	pari passu
	with Capital Securities issued by the Trust;
	provided
	,
	however
	, that upon the occurrence and continuance of an Event of Default (as defined in the
	Declaration), the rights of holders of such Common Securities to payment in respect of
	distributions and payments upon liquidation, redemption and otherwise are subordinated to the
	rights of holders of such Capital Securities.
	     
	Company
	 means Texas Capital Bancshares, Inc., a Delaware corporation, and, subject
	to the provisions of Article XI, shall include its successors and assigns.
	     
	Coupon Rate
	 has the meaning set forth in Section 2.8.
	     
	Debenture
	 or 
	Debentures
	 has the meaning stated in the first recital of
	this Indenture.
	     
	Debenture Register
	 has the meaning specified in Section 2.5.
	     
	Declaration
	 means the Amended and Restated Declaration of Trust of the Trust, as
	amended or supplemented from time to time.
	     
	Default
	 means any event, act or condition that with notice or lapse of time, or
	both, would constitute an Event of Default.
	     
	Defaulted Interest
	 has the meaning set forth in Section 2.8.
	     
	Determination Date
	 has the meaning set forth in Section 2.10.
	     
	Distribution Period
	 means (i) with respect to interest paid on the first Interest
	Payment Date, the period beginning on (and including) the date of original issuance and ending on
	(but excluding) the Interest Payment Date in June 2006 and (ii) thereafter, with respect to
	interest paid on each successive Interest Payment Date, the period beginning on (and including) the
	preceding Interest Payment Date and ending on (but excluding) such current Interest Payment Date.
	     
	Event of Default
	 means any event specified in Section 5.1, continued for the period
	of time, if any, and after the giving of the notice, if any, therein designated.
	     
	Extension Period
	 has the meaning set forth in Section 2.11.
	     
	Federal Reserve
	 means the Board of Governors of the Federal Reserve System, or its
	designated district bank, as applicable, and any successor federal agency that is primarily
	responsible for regulating the activities of bank holding companies.
	     
	Indenture
	 means this instrument as originally executed or, if amended or
	supplemented as herein provided, as so amended or supplemented, or both.
	     
	Institutional Trustee
	 has the meaning set forth in the Declaration.
	Texas Capital Bancshares, Inc./Indenture
	3
 
	 
	     
	Interest Payment Date
	 means March 15, June 15, September 15 and December 15 of each
	year during the term of this Indenture, or if such day is not a Business Day, then the next
	succeeding Business Day (it being understood that interest accrues for any such non-Business Day),
	commencing in June 2006.
	     
	Interest Rate
	 means for the Distribution Period beginning on (and including) the
	date of original issuance and ending on (but excluding) the Interest Payment Date in June 2006 the
	rate per annum of 6.74875%, and for each Distribution Period beginning on or after the Interest
	Payment Date in June 2006, the Coupon Rate for such Distribution Period.
	     
	Investment Company Event
	 means the receipt by the Company and the Trust of an
	opinion of counsel experienced in such matters to the effect that, as a result of the occurrence of
	a change in law or regulation or written change (including any announced prospective change) in
	interpretation or application of law or regulation by any legislative body, court, governmental
	agency or regulatory authority, there is more than an insubstantial risk that the Trust is or,
	within 90 days of the date of such opinion will be considered an investment company that is
	required to be registered under the Investment Company Act of 1940, as amended which change or
	prospective change becomes effective or would become effective, as the case may be, on or after the
	date of the issuance of the Debentures.
	     
	Liquidation Amount
	 means the stated amount of $1,000.00 per Trust Security.
	     
	Maturity Date
	 means June 15, 2036.
	     
	Officers Certificate
	 means a certificate signed by the Chairman of the Board, the
	Chief Executive Officer, the Vice Chairman, the President, any Managing Director or any Vice
	President, and by the Treasurer, an Assistant Treasurer, the Comptroller, an Assistant Comptroller,
	the Secretary or an Assistant Secretary of the Company, and delivered to the Trustee. Each such
	certificate shall include the statements provided for in Section 14.6 if and to the extent required
	by the provisions of such Section.
	     
	Opinion of Counsel
	 means an opinion in writing signed by legal counsel, who may be
	an employee of or counsel to the Company, or may be other counsel reasonably satisfactory to the
	Trustee. Each such opinion shall include the statements provided for in Section 14.6 if and to the
	extent required by the provisions of such Section.
	     
	OTS
	 means the Office of Thrift Supervision and any successor federal agency that is
	primarily responsible for regulating the activities of savings and loan holding companies.
	     The term 
	outstanding
	, when used with reference to Debentures, means, subject to the
	provisions of Section 7.4, as of any particular time, all Debentures authenticated and delivered by
	the Trustee or the Authenticating Agent under this Indenture, except:
	     (a) Debentures theretofore canceled by the Trustee or the Authenticating Agent or delivered to
	the Trustee for cancellation;
	     (b) Debentures, or portions thereof, for the payment or redemption of which moneys in the
	necessary amount shall have been deposited in trust with the Trustee or with any paying agent
	(other than the Company) or shall have been set aside and segregated in trust by the Company (if
	the Company shall act as its own paying agent);
	provided
	,
	however
	, that, if such
	Debentures, or portions thereof, are to be redeemed prior to maturity thereof, notice of such
	redemption shall have been given as provided in Section 10.3 or provision satisfactory to the
	Trustee shall have been made for giving such notice; and
	     (c) Debentures paid pursuant to Section 2.6 or in lieu of or in substitution for which other
	Debentures shall have been authenticated and delivered pursuant to the terms of Section 2.6 unless
	proof
	Texas Capital Bancshares, Inc./Indenture
	4
 
	 
	satisfactory to the Company and the Trustee is presented that any such Debentures are held by
	bona fide holders in due course.
	     
	Person
	 means any individual, corporation, limited liability company, partnership,
	joint venture, association, joint-stock company, trust, unincorporated organization or government
	or any agency or political subdivision thereof.
	     
	Predecessor Security
	 of any particular Debenture means every previous Debenture
	evidencing all or a portion of the same debt as that evidenced by such particular Debenture; and,
	for purposes of this definition, any Debenture authenticated and delivered under Section 2.6 in
	lieu of a lost, destroyed or stolen Debenture shall be deemed to evidence the same debt as the
	lost, destroyed or stolen Debenture.
	     
	Principal Office of the Trustee
	, or other similar term, means the office of the
	Trustee, at which at any particular time its corporate trust business shall be principally
	administered, which at the time of the execution of this Indenture shall be Rodney Square North,
	1100 North Market Street, Wilmington, Delaware 19890-1600, Attention: Corporate Trust
	Administration.
	     
	Redemption Date
	 has the meaning set forth in Section 10.1.
	     
	Redemption Price
	 means 100% of the principal amount of the Debentures being
	redeemed, plus accrued and unpaid interest (including any Additional Interest) on such Debentures
	to the Redemption Date.
	     
	Responsible Officer
	 means, with respect to the Trustee, any officer within the
	Principal Office of the Trustee, including any vice-president, any assistant vice-president, any
	secretary, any assistant secretary, the treasurer, any assistant treasurer, any trust officer or
	other officer of the Principal Trust Office of the Trustee customarily performing functions similar
	to those performed by any of the above designated officers and also means, with respect to a
	particular corporate trust matter, any other officer to whom such matter is referred because of
	that officers knowledge of and familiarity with the particular subject.
	     
	Securities Act
	 means the Securities Act of 1933, as amended from time to time or any
	successor legislation.
	     
	Securityholder
	, holder of Debentures, or other similar terms, means any Person in
	whose name at the time a particular Debenture is registered on the register kept by the Company or
	the Trustee for that purpose in accordance with the terms hereof.
	     
	Senior Indebtedness
	 means, with respect to the Company, (i) the principal, premium,
	if any, and interest in respect of (A) indebtedness of the Company for all borrowed and purchased
	money and (B) indebtedness evidenced by securities, debentures, notes, bonds or other similar
	instruments issued by the Company; (ii) all capital lease obligations of the Company; (iii) all
	obligations of the Company issued or assumed as the deferred purchase price of property, all
	conditional sale obligations of the Company and all obligations of the Company under any title
	retention agreement; (iv) all obligations of the Company for the reimbursement of any letter of
	credit, any bankers acceptance, any security purchase facility, any repurchase agreement or
	similar arrangement, any interest rate swap, any other hedging arrangement, any obligation under
	options or any similar credit or other transaction; (v) all obligations of the Company associated
	with derivative products such as interest and foreign exchange rate contracts, commodity contracts,
	and similar arrangements; (vi) all obligations of the type referred to in clauses (i) through (v)
	above of other Persons for the payment of which the Company is responsible or liable as
	obligor, guarantor or otherwise including, without limitation, similar obligations arising
	from off-balance sheet guarantees and direct credit substitutes; and (vii) all obligations of the
	type referred to in clauses (i)
	Texas Capital Bancshares, Inc./Indenture
	5
 
	 
	through (vi) above of other Persons secured by any lien on any
	property or asset of the Company (whether or not such obligation is assumed by the Company),
	whether incurred on or prior to the date of this Indenture or thereafter incurred. Notwithstanding
	the foregoing, Senior Indebtedness shall not include (1) any Additional Junior Indebtedness, (2)
	Debentures issued pursuant to this Indenture and guarantees in respect of such Debentures, (3)
	trade accounts payable of the Company arising in the ordinary course of business (such trade
	accounts payable being
	pari passu
	in right of payment to the Debentures), or (4) obligations with
	respect to which (a) in the instrument creating or evidencing the same or pursuant to which the
	same is outstanding, it is provided that such obligations are
	pari passu
	, junior or otherwise not
	superior in right of payment to the Debentures and (b) the Company, prior to the issuance thereof,
	has notified (and, if then required under the applicable guidelines of the regulating entity, has
	received approval from) the Federal Reserve (if the Company is a bank holding company) or the OTS
	(if the Company is a savings and loan holding company). Senior Indebtedness shall continue to be
	Senior Indebtedness and be entitled to the subordination provisions irrespective of any amendment,
	modification or waiver of any term of such Senior Indebtedness.
	     
	Special Event
	 means any of a Capital Treatment Event, an Investment Company Event or
	a Tax Event.
	     
	Special Redemption Date
	 has the meaning set forth in Section 10.2.
	     
	Special Redemption Price
	 means the price set forth in the following table for any
	Special Redemption Date that occurs on the date indicated below (or if such day is not a Business
	Day, then the next succeeding Business Day), expressed as the percentage of the principal amount of
	the Debentures being redeemed:
|  |  |  |  |  | 
| Month in which |  |  | 
| Special Redemption Date Occurs |  | Special Redemption Price | 
| 
	June 2006
 |  |  | 104.625 | % | 
| 
	September 2006
 |  |  | 104.300 | % | 
| 
	December 2006
 |  |  | 104.000 | % | 
| 
	March 2007
 |  |  | 103.650 | % | 
| 
	June 2007
 |  |  | 103.350 | % | 
| 
	September 2007
 |  |  | 103.000 | % | 
| 
	December 2007
 |  |  | 102.700 | % | 
| 
	March 2008
 |  |  | 102.350 | % | 
| 
	June 2008
 |  |  | 102.050 | % | 
| 
	September 2008
 |  |  | 101.700 | % | 
| 
	December 2008
 |  |  | 101.400 | % | 
| 
	March 2009
 |  |  | 101.050 | % | 
 
	Texas Capital Bancshares, Inc./Indenture
	6
 
	 
|  |  |  |  |  | 
| Month in which |  |  | 
| Special Redemption Date Occurs |  | Special Redemption Price | 
| 
	June 2009
 |  |  | 100.750 | % | 
| 
	September 2009
 |  |  | 100.450 | % | 
| 
	December 2009
 |  |  | 100.200 | % | 
| 
	March 2010 and thereafter
 |  |  | 100.000 | % | 
 
	     plus, in each case, accrued and unpaid interest (including any Additional Interest) on such
	Debentures to the Special Redemption Date.
	     
	Subsidiary
	 means with respect to any Person, (i) any corporation at least a majority
	of the outstanding voting stock of which is owned, directly or indirectly, by such Person or by one
	or more of its Subsidiaries, or by such Person and one or more of its Subsidiaries, (ii) any
	general partnership, joint venture or similar entity, at least a majority of the outstanding
	partnership or similar interests of which shall at the time be owned by such Person, or by one or
	more of its Subsidiaries, or by such Person and one or more of its Subsidiaries and (iii) any
	limited partnership of which such Person or any of its Subsidiaries is a general partner. For the
	purposes of this definition, voting stock means shares, interests, participations or other
	equivalents in the equity interest (however designated) in such Person having ordinary voting power
	for the election of a majority of the directors (or the equivalent) of such Person, other than
	shares, interests, participations or other equivalents having such power only by reason of the
	occurrence of a contingency.
	     
	Tax Event
	 means the receipt by the Company and the Trust of an opinion of counsel
	experienced in such matters to the effect that, as a result of any amendment to or change
	(including any announced prospective change) in the laws or any regulations thereunder of the
	United States or any political subdivision or taxing authority thereof or therein, or as a result
	of any official administrative pronouncement (including any private letter ruling, technical advice
	memorandum, field service advice, regulatory procedure, notice or announcement, including any
	notice or announcement of intent to adopt such procedures or regulations) (an 
	Administrative
	Action
	) or judicial decision interpreting or applying such laws or regulations, regardless of
	whether such Administrative Action or judicial decision is issued to or in connection with a
	proceeding involving the Company or the Trust and whether or not subject to review or appeal, which
	amendment, clarification, change, Administrative Action or decision is enacted, promulgated or
	announced, in each case on or after the date of original issuance of the Debentures, there is more
	than an insubstantial risk that: (i) the Trust is, or will be within 90 days of the date of such
	opinion, subject to United States federal income tax with respect to income received or accrued on
	the Debentures; (ii) interest payable by the Company on the Debentures is not, or within 90 days of
	the date of such opinion, will not be, deductible by the Company, in whole or in part, for United
	States federal income tax purposes; or (iii) the Trust is, or will be within 90 days of the date of
	such opinion, subject to more than a de minimis amount of other taxes, duties or other governmental
	charges.
	     
	3-Month LIBOR
	 has the meaning set forth in Section 2.10.
	     
	Telerate Page 3750
	 has the meaning set forth in Section 2.10.
	     
	Trust
	 shall mean Texas Capital Statutory Trust IV, a Delaware statutory trust, or
	any other similar trust created for the purpose of issuing Capital Securities in connection with
	the issuance of Debentures under this Indenture, of which the Company is the sponsor.
	     
	Trust Securities
	 means Common Securities and Capital Securities of the Trust.
	Texas Capital Bancshares, Inc./Indenture
	7
 
	 
	     
	Trustee
	 means Wilmington Trust Company, and, subject to the provisions of Article VI
	hereof, shall also include its successors and assigns as Trustee hereunder.
	ARTICLE II.
	DEBENTURES
	     
	Section 2.1.
	Authentication and Dating
	.
	Upon the execution and delivery of this Indenture, or from time to time thereafter, Debentures
	in an aggregate principal amount not in excess of $25,774,000.00 may be executed and delivered by
	the Company to the Trustee for authentication, and the Trustee, upon receipt of a written
	authentication order from the Company, shall thereupon authenticate and make available for delivery
	said Debentures to or upon the written order of the Company, signed by its Chairman of the Board of
	Directors, Chief Executive Officer, Vice Chairman, the President, one of its Managing Directors or
	one of its Vice Presidents without any further action by the Company hereunder. Notwithstanding
	anything to the contrary contained herein, the Trustee shall be fully protected in relying upon the
	aforementioned authentication order and written order in authenticating and delivering said
	Debentures. In authenticating such Debentures, and accepting the additional responsibilities under
	this Indenture in relation to such Debentures, the Trustee shall be entitled to receive, and
	(subject to Section 6.1) shall be fully protected in relying upon:
	     (a) a copy of any Board Resolution or Board Resolutions relating thereto and, if applicable,
	an appropriate record of any action taken pursuant to such resolution, in each case certified by
	the Secretary or an Assistant Secretary of the Company, as the case may be; and
	     (b) an Opinion of Counsel prepared in accordance with Section 14.6 which shall also state:
	     (1) that such Debentures, when authenticated and delivered by the Trustee and
	issued by the Company in each case in the manner and subject to any conditions
	specified in such Opinion of Counsel, will constitute valid and legally binding
	obligations of the Company, subject to or limited by applicable bankruptcy,
	insolvency, reorganization, conservatorship, receivership, moratorium and other
	statutory or decisional laws relating to or affecting creditors rights or the
	reorganization of financial institutions (including, without limitation, preference
	and fraudulent conveyance or transfer laws), heretofore or hereafter enacted or in
	effect, affecting the rights of creditors generally; and
	     (2) that all laws and requirements in respect of the execution and delivery by
	the Company of the Debentures have been complied with and that authentication and
	delivery of the Debentures by the Trustee will not violate the terms of this
	Indenture.
	     The Trustee shall have the right to decline to authenticate and deliver any Debentures under
	this Section if the Trustee, being advised in writing by counsel, determines that such action may
	not lawfully be taken or if a Responsible Officer of the Trustee in good faith shall determine that
	such action would expose the Trustee to personal liability to existing holders.
	     The definitive Debentures shall be typed, printed, lithographed or engraved on steel engraved
	borders or may be produced in any other manner, all as determined by the officers executing such
	Debentures, as evidenced by their execution of such Debentures.
	     
	Section 2.2.
	Form of Trustees Certificate of Authentication
	.
	The Trustees certificate of authentication on all Debentures shall be in substantially the
	following form:
	     This is one of the Debentures referred to in the within-mentioned Indenture.
	Texas Capital Bancshares, Inc./Indenture
	8
 
	 
|  |  |  |  |  |  | 
|  | WILMINGTON TRUST COMPANY, as Trustee | 
|  |  |  |  |  |  | 
| 
	 
 | By |  |  |  |  | 
| 
	 
 |  | 
	 
 |  | 
| 
	 
 | 
	 
Authorized Signer |  | 
 
	     
	Section 2.3.
	Form and Denomination of Debentures.
	The Debentures shall be substantially in the form of Exhibit A attached hereto. The
	Debentures shall be in registered, certificated form without coupons and in minimum denominations
	of $100,000.00 and any multiple of $1,000.00 in excess thereof. Any attempted transfer of the
	Debentures in a block having an aggregate principal amount of less than $100,000.00 shall be deemed
	to be void and of no legal effect whatsoever. Any such purported transferee shall be deemed not to
	be a holder of such Debentures for any purpose, including, but not limited to the receipt of
	payments on such Debentures, and such purported transferee shall be deemed to have no interest
	whatsoever in such Debentures. The Debentures shall be numbered, lettered, or otherwise
	distinguished in such manner or in accordance with such plans as the officers executing the same
	may determine with the approval of the Trustee as evidenced by the execution and authentication
	thereof.
	     
	Section 2.4.
	Execution of Debentures
	.
	The Debentures shall be signed in the name and on behalf of the Company by the manual or
	facsimile signature of its Chairman of the Board of Directors, Chief Executive Officer, Vice
	Chairman, President, one of its Managing Directors or one of its Executive Vice Presidents, Senior
	Vice Presidents or Vice Presidents. Only such Debentures as shall bear thereon a certificate of
	authentication substantially in the form herein before recited, executed by the Trustee or the
	Authenticating Agent by the manual signature of an authorized signer, shall be entitled to the
	benefits of this Indenture or be valid or obligatory for any purpose. Such certificate by the
	Trustee or the Authenticating Agent upon any Debenture executed by the Company shall be conclusive
	evidence that the Debenture so authenticated has been duly authenticated and delivered hereunder
	and that the holder is entitled to the benefits of this Indenture.
	     In case any officer of the Company who shall have signed any of the Debentures shall cease to
	be such officer before the Debentures so signed shall have been authenticated and delivered by the
	Trustee or the Authenticating Agent, or disposed of by the Company, such Debentures nevertheless
	may be authenticated and delivered or disposed of as though the Person who signed such Debentures
	had not ceased to be such officer of the Company; and any Debenture may be signed on behalf of the
	Company by such Persons as, at the actual date of the execution of such Debenture, shall be the
	proper officers of the Company, although at the date of the execution of this Indenture any such
	person was not such an officer.
	     Every Debenture shall be dated the date of its authentication.
	     
	Section 2.5.
	Exchange and Registration of Transfer of Debentures
	.
	The Company shall cause to be kept, at the office or agency maintained for the purpose of
	registration of transfer and for exchange as provided in Section 3.2, a register (the
	
	Debenture Register
	) for the Debentures issued hereunder in which, subject to such
	reasonable regulations as it may prescribe, the Company shall provide for the registration and
	transfer of all Debentures as in this Article II provided. The Debenture Register shall be in
	written form or in any other form capable of being converted into written form within a reasonable
	time.
	     Debentures to be exchanged may be surrendered at the Principal Office of the Trustee or at any
	office or agency to be maintained by the Company for such purpose as provided in Section 3.2, and
	the Company shall execute, the Company or the Trustee shall register and the Trustee or the
	Authenticating Agent shall authenticate and make available for delivery in exchange therefor the
	Debenture or Debentures which the Securityholder making the exchange shall be entitled to receive.
	Upon due presentment for registration of transfer of any Debenture at the Principal Office of the
	Trustee or at any
	Texas Capital Bancshares, Inc./Indenture
	9
 
	 
	office or agency of the Company maintained for such purpose as provided in
	Section 3.2, the Company shall execute, the Company or the Trustee shall register and the Trustee
	or the Authenticating Agent shall authenticate and make available for delivery in the name of the
	transferee or transferees a new Debenture for a like aggregate principal amount. Registration or
	registration of transfer of any Debenture by the Trustee or by any agent of the Company appointed
	pursuant to Section 3.2, and delivery of such Debenture, shall be deemed to complete the
	registration or registration of transfer of such Debenture.
	     All Debentures presented for registration of transfer or for exchange or payment shall (if so
	required by the Company or the Trustee or the Authenticating Agent) be duly endorsed by, or be
	accompanied by a written instrument or instruments of transfer in form satisfactory to the Company
	and the Trustee or the Authenticating Agent duly executed by the holder or his attorney duly
	authorized in writing.
	     No service charge shall be made for any exchange or registration of transfer of Debentures,
	but the Company or the Trustee may require payment of a sum sufficient to cover any tax, fee or
	other governmental charge that may be imposed in connection therewith.
	     The Company or the Trustee shall not be required to exchange or register a transfer of any
	Debenture for a period of 15 days next preceding the date of selection of Debentures for
	redemption.
	     Notwithstanding anything herein to the contrary, Debentures may not be transferred except in
	compliance with the restricted securities legend set forth below, unless otherwise determined by
	the Company, upon the advice of counsel expert in securities law, in accordance with applicable
	law:
	     THIS SECURITY IS NOT A SAVINGS ACCOUNT OR DEPOSIT AND IT IS NOT INSURED BY THE UNITED STATES
	OR ANY AGENCY OR FUND OF THE UNITED STATES, INCLUDING THE FEDERAL DEPOSIT INSURANCE CORPORATION.
	     THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
	SECURITIES ACT), ANY STATE SECURITIES LAWS OR ANY OTHER APPLICABLE SECURITIES LAW. NEITHER THIS
	SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED,
	PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH
	TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT
	AND ANY APPLICABLE STATE SECURITIES LAWS. THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF
	AGREES TO OFFER, SELL OR OTHERWISE TRANSFER THIS SECURITY ONLY (A) TO THE COMPANY, (B) PURSUANT TO
	A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) TO A PERSON
	WHOM THE
	SELLER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER IN A TRANSACTION MEETING THE
	REQUIREMENTS OF RULE 144A SO LONG AS THIS SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A IN
	ACCORDANCE WITH RULE 144A, (D) TO A NON-U.S. PERSON IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH
	RULE 903 OR RULE 904 (AS APPLICABLE) OF REGULATION S UNDER THE SECURITIES ACT, (E) TO AN
	INSTITUTIONAL ACCREDITED INVESTOR WITHIN THE MEANING OF SUBPARAGRAPH (A) OF RULE 501 UNDER THE
	SECURITIES ACT THAT IS ACQUIRING THIS SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN
	INSTITUTIONAL ACCREDITED INVESTOR, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER OR
	SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, OR (F) PURSUANT TO
	ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO
	THE COMPANYS RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER TO REQUIRE THE DELIVERY OF
	Texas Capital Bancshares, Inc./Indenture
	10
 
	 
	AN OPINION
	OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO IT IN ACCORDANCE WITH THE
	INDENTURE, A COPY OF WHICH MAY BE OBTAINED FROM THE COMPANY.
	     THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF ALSO AGREES, REPRESENTS AND WARRANTS THAT
	IT IS NOT AN EMPLOYEE BENEFIT, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER PLAN OR ARRANGEMENT SUBJECT
	TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (ERISA), OR SECTION
	4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE CODE) (EACH A PLAN), OR AN ENTITY
	WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF ANY PLANS INVESTMENT IN THE ENTITY, AND
	NO PERSON INVESTING PLAN ASSETS OF ANY PLAN MAY ACQUIRE OR HOLD THE SECURITIES OR ANY INTEREST
	THEREIN, UNLESS SUCH PURCHASER OR HOLDER IS ELIGIBLE FOR EXEMPTIVE RELIEF AVAILABLE UNDER U.S.
	DEPARTMENT OF LABOR PROHIBITED TRANSACTION CLASS EXEMPTION 96-23, 95-60, 91-38, 90-1 OR 84-14 OR
	ANOTHER APPLICABLE EXEMPTION OR ITS PURCHASE AND HOLDING OF THIS SECURITY IS NOT PROHIBITED BY
	SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE WITH RESPECT TO SUCH PURCHASE OR HOLDING. ANY
	PURCHASER OR HOLDER OF THE SECURITIES OR ANY INTEREST THEREIN WILL BE DEEMED TO HAVE REPRESENTED BY
	ITS PURCHASE AND HOLDING THEREOF THAT EITHER (i) IT IS NOT AN EMPLOYEE BENEFIT PLAN WITHIN THE
	MEANING OF SECTION 3(3) OF ERISA, OR A PLAN TO WHICH SECTION 4975 OF THE CODE IS APPLICABLE, A
	TRUSTEE OR OTHER PERSON ACTING ON BEHALF OF AN EMPLOYEE BENEFIT PLAN OR PLAN, OR ANY OTHER PERSON
	OR ENTITY USING THE ASSETS OF ANY EMPLOYEE BENEFIT PLAN OR PLAN TO FINANCE SUCH PURCHASE, OR (ii)
	SUCH PURCHASE WILL NOT RESULT IN A PROHIBITED TRANSACTION UNDER SECTION 406 OF ERISA OR SECTION
	4975 OF THE CODE FOR WHICH THERE IS NO APPLICABLE STATUTORY OR ADMINISTRATIVE EXEMPTION.
	     THIS SECURITY WILL BE ISSUED AND MAY BE TRANSFERRED ONLY IN BLOCKS HAVING AN AGGREGATE
	PRINCIPAL AMOUNT OF NOT LESS THAN $100,000.00 AND MULTIPLES OF $1,000.00 IN EXCESS THEREOF. ANY
	ATTEMPTED TRANSFER OF THIS SECURITY IN A BLOCK HAVING AN AGGREGATE PRINCIPAL AMOUNT OF LESS THAN
	$100,000.00 SHALL BE DEEMED TO BE VOID AND OF NO LEGAL EFFECT WHATSOEVER.
	     THE HOLDER OF THIS SECURITY AGREES THAT IT WILL COMPLY WITH THE FOREGOING RESTRICTIONS.
	     
	Section 2.6.
	Mutilated, Destroyed, Lost or Stolen Debentures
	.
	In case any Debenture shall become mutilated or be destroyed, lost or stolen, the Company
	shall execute, and upon its written request the Trustee shall authenticate and deliver, a new
	Debenture bearing a number not contemporaneously outstanding, in exchange and substitution for the
	mutilated Debenture, or in lieu of and in substitution for the Debenture so destroyed, lost or
	stolen. In every case the applicant for a substituted Debenture shall furnish to the Company and
	the Trustee such security or indemnity as may be required by them to save each of them harmless,
	and, in every case of destruction, loss or theft, the applicant shall also furnish to the Company
	and the Trustee evidence to their satisfaction of the destruction, loss or theft of such Debenture
	and of the ownership thereof.
	     The Trustee may authenticate any such substituted Debenture and deliver the same upon the
	written request or authorization of any officer of the Company. Upon the issuance of any
	substituted Debenture, the Company may require the payment of a sum sufficient to cover any tax or
	other governmental charge that may be imposed in relation thereto and any other expenses connected
	therewith.
	Texas Capital Bancshares, Inc./Indenture
	11
 
	 
	In case any Debenture which has matured or is about to mature or has been called for
	redemption in full shall become mutilated or be destroyed, lost or stolen, the Company may, instead
	of issuing a substitute Debenture, pay or authorize the payment of the same (without surrender
	thereof except in the case of a mutilated Debenture) if the applicant for such payment shall
	furnish to the Company and the Trustee such security or indemnity as may be required by them to
	save each of them harmless and, in case of destruction, loss or theft, evidence satisfactory to the
	Company and to the Trustee of the destruction, loss or theft of such Debenture and of the ownership
	thereof.
	     Every substituted Debenture issued pursuant to the provisions of this Section 2.6 by virtue of
	the fact that any such Debenture is destroyed, lost or stolen shall constitute an additional
	contractual obligation of the Company, whether or not the destroyed, lost or stolen Debenture shall
	be found at any time, and shall be entitled to all the benefits of this Indenture equally and
	proportionately with any and all other Debentures duly issued hereunder. All Debentures shall be
	held and owned upon the express condition that, to the extent permitted by applicable law, the
	foregoing provisions are exclusive with respect to the replacement or payment of mutilated,
	destroyed, lost or stolen Debentures and shall preclude any and all other rights or remedies
	notwithstanding any law or statute existing or hereafter enacted to the contrary with respect to
	the replacement or payment of negotiable instruments or other securities without their surrender.
	     
	Section 2.7.
	Temporary Debentures
	.
	Pending the preparation of definitive Debentures, the Company may execute and the Trustee
	shall authenticate and make available for delivery temporary Debentures that are typed, printed or
	lithographed. Temporary Debentures shall be issuable in any authorized denomination, and
	substantially in the form of the definitive Debentures in lieu of which they are issued but with
	such omissions, insertions and variations as may be appropriate for temporary Debentures, all as
	may be determined by the Company. Every such temporary Debenture shall be executed by the Company
	and be authenticated by the Trustee upon the same conditions and in substantially the same manner,
	and with the same effect, as the definitive Debentures. Without unreasonable delay the Company
	will execute and deliver to the Trustee or the Authenticating Agent definitive Debentures and
	thereupon any or all temporary Debentures may be surrendered in exchange therefor, at the principal
	corporate trust office of the Trustee or at any office or agency maintained by the Company for such
	purpose as provided in Section 3.2, and the Trustee or the Authenticating Agent shall authenticate
	and make available for delivery in exchange for such temporary Debentures a like aggregate
	principal amount of such definitive Debentures. Such exchange shall be made by the Company at its
	own expense and without any charge therefor except that in case of any such exchange involving a
	registration of transfer the Company may require payment of a sum sufficient to cover any tax, fee
	or other governmental charge that may be imposed in relation thereto.
	     Until so exchanged, the temporary Debentures shall in all respects be entitled to the same
	benefits under this Indenture as definitive Debentures authenticated and delivered hereunder.
	     
	Section 2.8.
	Payment of Interest and Additional Interest
	.
	Interest at the Interest Rate and any Additional Interest on any Debenture that is payable,
	and is punctually paid or duly provided for, on any Interest Payment Date for Debentures shall be
	paid to the Person in whose name said Debenture (or one or more Predecessor Securities) is
	registered at the close of business on the regular record date for such interest installment except
	that interest and any Additional Interest payable on the Maturity Date shall be paid to the Person
	to whom principal is paid.
	     Each Debenture shall bear interest for the period beginning on (and including) the date of
	original issuance and ending on (but excluding) the Interest Payment Date in June 2006 at a rate
	per annum of 6.74875%, and shall bear interest for each successive Distribution Period beginning on
	or after the Interest Payment Date in June 2006 at a rate per annum equal to the 3-Month LIBOR,
	determined as described in Section 2.10, plus 1.60% (the 
	Coupon Rate
	), applied to the
	principal amount thereof, until
	Texas Capital Bancshares, Inc./Indenture
	12
 
	 
	the principal thereof becomes due and payable, and on any overdue
	principal and to the extent that payment of such interest is enforceable under applicable law
	(without duplication) on any overdue installment of interest (including Additional Interest) at the
	Interest Rate in effect for each applicable period compounded quarterly. Interest shall be payable
	(subject to any relevant Extension Period) quarterly in arrears on each Interest Payment Date with
	the first installment of interest to be paid on the Interest Payment Date in June 2006.
	     Any interest on any Debenture, including Additional Interest, that is payable, but is not
	punctually paid or duly provided for, on any Interest Payment Date (herein called 
	Defaulted
	Interest
	) shall forthwith cease to be payable to the registered holder on the relevant regular
	record date by virtue of having been such holder; and such Defaulted Interest shall be paid by the
	Company to the Persons in whose names such Debentures (or their respective Predecessor Securities)
	are registered at the close of business on a special record date for the payment of such Defaulted
	Interest, which shall be fixed in the following manner: the Company shall notify the Trustee in
	writing at least 25 days prior to the date of the proposed payment of the amount of Defaulted
	Interest proposed to be paid on each such Debenture and the date of the proposed payment, and at
	the same time the Company shall deposit with the Trustee an amount of money equal to the aggregate
	amount proposed to be paid in respect of such Defaulted Interest or shall make arrangements
	satisfactory to the Trustee for such deposit prior to the date of the proposed payment, such money
	when deposited to be held in trust for the benefit of the Persons entitled to such Defaulted
	Interest as in this clause provided. Thereupon the Trustee shall fix a special record date for the
	payment of such Defaulted Interest which shall not be more than 15 nor less than 10 days prior to
	the date of the proposed payment and not less than 10 days after the receipt by the Trustee of the
	notice of the proposed payment. The Trustee shall promptly notify the Company of such special
	record date and, in the name and at the expense of the Company, shall cause notice of the proposed
	payment of such Defaulted Interest and the special record date therefor to be mailed, first class
	postage prepaid, to each Securityholder at its address as it appears in the Debenture Register, not
	less than 10 days prior to such special record date. Notice of the proposed payment of such
	Defaulted Interest and the special record date therefor having been mailed as aforesaid, such
	Defaulted Interest shall be paid to the Persons in whose names such Debentures (or their respective
	Predecessor Securities) are registered on such special record date and shall be no longer payable.
	     The Company may make payment of any Defaulted Interest on any Debentures in any other lawful
	manner after notice given by the Company to the Trustee of the proposed payment method;
	provided
	,
	however
	, the Trustee in its sole discretion deems such payment method to
	be practical.
	     Any interest (including Additional Interest) scheduled to become payable on an Interest
	Payment Date occurring during an Extension Period shall not be Defaulted Interest and shall be
	payable on such other date as may be specified in the terms of such Debentures.
	     The term regular record date as used in this Section shall mean the close of business on the
	15th Business Day preceding the applicable Interest Payment Date.
	     Subject to the foregoing provisions of this Section, each Debenture delivered under this
	Indenture upon registration of transfer of or in exchange for or in lieu of any other Debenture
	shall carry the rights to interest accrued and unpaid, and to accrue, that were carried by such
	other Debenture.
	     
	Section 2.9.
	Cancellation of Debentures Paid, etc
	.
	All Debentures surrendered for the purpose of payment, redemption, exchange or registration of
	transfer, shall, if surrendered to the Company or any paying agent, be surrendered to the Trustee
	and promptly canceled by it, or, if surrendered to the Trustee or any Authenticating Agent, shall
	be promptly canceled by it, and no Debentures shall be issued in lieu thereof except as expressly
	permitted by any of the provisions of this Indenture. All Debentures canceled by any
	Authenticating Agent shall be delivered to the Trustee. The
	Texas Capital Bancshares, Inc./Indenture
	13
 
	 
	Trustee shall destroy all canceled
	Debentures unless the Company otherwise directs the Trustee in writing. If the Company shall
	acquire any of the Debentures, however, such acquisition shall not operate as a redemption or
	satisfaction of the indebtedness represented by such Debentures unless and until the same are
	surrendered to the Trustee for cancellation.
	     
	Section 2.10.
	Computation of Interest
	.
	The amount of interest payable for each Distribution Period will be calculated by applying the
	Interest Rate to the principal amount outstanding at the commencement of the Distribution Period on
	the basis of the actual number of days in the Distribution Period concerned divided by 360. All
	percentages resulting from any calculations on the Debentures will be rounded, if necessary, to the
	nearest one hundred-thousandth of a percentage point, with five one-millionths of a percentage
	point rounded upward (e.g., 9.876545% (or .09876545) being rounded to 9.87655% (or .0987655), and
	all dollar amounts used in or resulting from such calculation will be rounded to the nearest cent
	(with one-half cent being rounded upward)).
	     (a) 
	3-Month LIBOR
	 means the London interbank offered interest rate for three-month,
	U.S. dollar deposits determined by the Trustee in the following order of priority:
	     (1) the rate (expressed as a percentage per annum) for U.S. dollar deposits having a
	three-month maturity that appears on Telerate Page 3750 as of 11:00 a.m. (London time) on
	the related Determination Date (as defined below). Telerate Page 3750 means the display
	designated as Page 3750 on the Moneyline Telerate Service or such other page as may
	replace Page 3750 on that service or such other service or services as may be nominated by
	the British Bankers Association as the information vendor for the purpose of displaying
	London interbank offered rates for U.S. dollar deposits;
	     (2) if such rate cannot be identified on the related Determination Date, the Trustee
	will request the principal London offices of four leading banks in the London interbank
	market to provide such banks offered quotations (expressed as percentages per annum) to
	prime banks in the London interbank market for U.S. dollar deposits having a three-month
	maturity as of 11:00 a.m. (London time) on such Determination Date. If at least two
	quotations are provided, 3-Month LIBOR will be the arithmetic mean of such quotations;
	     (3) if fewer than two such quotations are provided as requested in clause (2) above,
	the Trustee will request four major New York City banks to provide such banks offered
	quotations (expressed as percentages per annum) to leading European banks for loans in U.S.
	dollars as of 11:00 a.m. (London time) on such Determination Date. If at least two such
	quotations are provided, 3-Month LIBOR will be the arithmetic mean of such quotations; and
	     (4) if fewer than two such quotations are provided as requested in clause (3) above,
	3-Month LIBOR will be a 3-Month LIBOR determined with respect to the Distribution Period
	immediately preceding such current Distribution Period.
	       If the rate for U.S. dollar deposits having a three-month maturity that initially appears on
	Telerate Page 3750 as of 11:00 a.m. (London time) on the related Determination Date is superseded
	on the Telerate Page 3750 by a corrected rate by 12:00 noon (London time) on such Determination
	Date, then the corrected rate as so substituted on the applicable page will be the applicable
	3-Month LIBOR for such Determination Date.
	       (b) The Interest Rate for any Distribution Period will at no time be higher than the maximum
	rate then permitted by New York law as the same may be modified by United States law.
	Texas Capital Bancshares, Inc./Indenture
	14
 
	 
	     (c) 
	Determination Date
	 means the date that is two London Banking Days (i.e., a
	business day in which dealings in deposits in U.S. dollars are transacted in the London interbank
	market) preceding the particular Distribution Period for which a Coupon Rate is being determined.
	     (d) The Trustee shall notify the Company, the Institutional Trustee and any securities
	exchange or interdealer quotation system on which the Capital Securities are listed, of the Coupon
	Rate and the Determination Date for each Distribution Period, in each case as soon as practicable
	after the determination thereof but in no event later than the thirtieth (30th) day of the relevant
	Distribution Period. Failure to notify the Company, the Institutional Trustee or any securities
	exchange or interdealer quotation system, or any defect in said notice, shall not affect the
	obligation of the Company to make payment on the Debentures at the applicable Coupon Rate. Any
	error in the calculation of the Coupon Rate by the Trustee may be corrected at any time by notice
	delivered as above provided. Upon the request of a holder of a Debenture, the Trustee shall
	provide the Coupon Rate then in effect and, if determined, the Coupon Rate for the next
	Distribution Period.
	     (e) Subject to the corrective rights set forth above, all certificates, communications,
	opinions, determinations, calculations, quotations and decisions given, expressed, made or obtained
	for the purposes of the provisions relating to the payment and calculation of interest on the
	Debentures and distributions on the Capital Securities by the Trustee or the Institutional Trustee
	will (in the absence of willful default, bad faith and manifest error) be final, conclusive and
	binding on the Trust, the Company and all of the holders of the Debentures and the Capital
	Securities, and no liability shall (in the absence of willful default, bad faith or manifest error)
	attach to the Trustee or the Institutional Trustee in connection with the exercise or non-exercise
	by either of them or their respective powers, duties and discretion.
	     
	Section 2.11.
	Extension of Interest Payment Period
	.
	So long as no Acceleration Event of Default has occurred and is continuing, the Company shall
	have the right, from time to time, and without causing an Event of Default, to defer payments of
	interest on the Debentures by extending the interest payment period on the Debentures at any time
	and from time to time during the term of the Debentures, for up to 20 consecutive quarterly periods
	(each such extended interest payment period, an 
	Extension Period
	), during which Extension
	Period no interest (including Additional Interest) shall be due and payable (except any Additional
	Sums that may be due and payable). No Extension Period may end on a date other than an Interest
	Payment Date. During an Extension
	Period, interest will continue to accrue on the Debentures, and interest on such accrued
	interest will accrue at an annual rate equal to the Interest Rate in effect for such Extension
	Period, compounded quarterly from the date such interest would have been payable were it not for
	the Extension Period, to the extent permitted by law (such interest referred to herein as
	
	Additional Interest
	). At the end of any such Extension Period the Company shall pay all
	interest then accrued and unpaid on the Debentures (together with Additional Interest thereon);
	provided
	,
	however
	, that no Extension Period may extend beyond the Maturity Date;
	provided
	further
	,
	however
	, that during any such Extension Period, the
	Company shall not and shall not permit any Affiliate to (i) declare or pay any dividends or
	distributions on, or redeem, purchase, acquire, or make a liquidation payment with respect to, any
	of the Companys or such Affiliates capital stock (other than payments of dividends or
	distributions to the Company) or make any guarantee payments with respect to the foregoing or (ii)
	make any payment of principal of or interest or premium, if any, on or repay, repurchase or redeem
	any debt securities of the Company or any Affiliate that rank
	pari passu
	in all respects with or
	junior in interest to the Debentures (other than, with respect to clauses (i) or (ii) above, (a)
	repurchases, redemptions or other acquisitions of shares of capital stock of the Company in
	connection with any employment contract, benefit plan or other similar arrangement with or for the
	benefit of one or more employees, officers, directors or consultants, in connection with a dividend
	reinvestment or stockholder stock purchase plan or in connection with the issuance of capital stock
	of the Company (or securities convertible into or exercisable for such capital stock) as
	consideration in an acquisition transaction entered into prior to the applicable Extension Period,
	(b) as a result of any exchange or conversion of any
	Texas Capital Bancshares, Inc./Indenture
	15
 
	 
	class or series of the Companys capital stock
	(or any capital stock of a subsidiary of the Company) for any class or series of the Companys
	capital stock or of any class or series of the Companys indebtedness for any class or series of
	the Companys capital stock, (c) the purchase of fractional interests in shares of the Companys
	capital stock pursuant to the conversion or exchange provisions of such capital stock or the
	security being converted or exchanged, (d) any declaration of a dividend in connection with any
	stockholders rights plan, or the issuance of rights, stock or other property under any
	stockholders rights plan, or the redemption or repurchase of rights pursuant thereto, (e) any
	dividend in the form of stock, warrants, options or other rights where the dividend stock or the
	stock issuable upon exercise of such warrants, options or other rights is the same stock as that on
	which the dividend is being paid or ranks
	pari passu
	with or junior to such stock and any cash
	payments in lieu of fractional shares issued in connection therewith, or (f) payments under the
	Capital Securities Guarantee). Prior to the termination of any Extension Period, the Company may
	further extend such period, provided that such period together with all such previous and further
	consecutive extensions thereof shall not exceed 20 consecutive quarterly periods, or extend beyond
	the Maturity Date. Upon the termination of any Extension Period and upon the payment of all
	accrued and unpaid interest and Additional Interest, the Company may commence a new Extension
	Period, subject to the foregoing requirements. No interest or Additional Interest shall be due and
	payable during an Extension Period, except at the end thereof, but each installment of interest
	that would otherwise have been due and payable during such Extension Period shall bear Additional
	Interest to the extent permitted by applicable law. The Company must give the Trustee notice of
	its election to begin or extend an Extension Period by the close of business at least 15 Business
	Days prior to the Interest Payment Date with respect to which interest on the Debentures would have
	been payable except for the election to begin or extend such Extension Period. The Trustee shall
	give notice of the Companys election to begin a new Extension Period to the Securityholders.
	     
	Section 2.12.
	CUSIP Numbers
	.
	The Company in issuing the Debentures may use CUSIP numbers (if then generally in use), and,
	if so, the Trustee shall use CUSIP numbers in notices of redemption as a convenience to
	Securityholders; provided, however, that any such notice may state that no representation is made
	as to the correctness of such numbers either as printed on the Debentures or as contained in any
	notice of a redemption and that reliance may be placed only on the other identification numbers
	printed on the
	Debentures, and any such redemption shall not be affected by any defect in or omission of such
	numbers. The Company will promptly notify the Trustee in writing of any change in the CUSIP
	numbers.
	ARTICLE III.
	PARTICULAR COVENANTS OF THE COMPANY
	     
	Section 3.1.
	Payment of Principal, Premium and Interest; Agreed Treatment of the
	Debentures
	.
	     (a) The Company covenants and agrees that it will duly and punctually pay or cause to be paid
	the principal of and premium, if any, and interest and any Additional Interest and other payments
	on the Debentures at the place, at the respective times and in the manner provided in this
	Indenture and the Debentures. Each installment of interest on the Debentures may be paid (i) by
	mailing checks for such interest payable to the order of the holders of Debentures entitled thereto
	as they appear on the registry books of the Company if a request for a wire transfer has not been
	received by the Company or (ii) by wire transfer to any account with a banking institution located
	in the United States designated in writing by such Person to the paying agent no later than the
	related record date. Notwithstanding the foregoing, so long as the holder of this Debenture is the
	Institutional Trustee, the payment of the principal of and interest on this Debenture will be made
	in immediately available funds at such place and to such account as may be designated by the
	Institutional Trustee.
	Texas Capital Bancshares, Inc./Indenture
	16
 
	 
	     (b) The Company will treat the Debentures as indebtedness, and the amounts payable in respect
	of the principal amount of such Debentures as interest, for all United States federal income tax
	purposes. All payments in respect of such Debentures will be made free and clear of United States
	withholding tax to any beneficial owner thereof that has provided an Internal Revenue Service Form
	W8 BEN (or any substitute or successor form) establishing its non-United States status for United
	States federal income tax purposes.
	     (c) As of the date of this Indenture, the Company has no present intention to exercise its
	right under Section 2.11 to defer payments of interest on the Debentures by commencing an Extension
	Period.
	     (d) As of the date of this Indenture, the Company believes that the likelihood that it would
	exercise its right under Section 2.11 to defer payments of interest on the Debentures by commencing
	an Extension Period at any time during which the Debentures are outstanding is remote because of
	the restrictions that would be imposed on the Companys ability to declare or pay dividends or
	distributions on, or to redeem, purchase or make a liquidation payment with respect to, any of its
	outstanding equity and on the Companys ability to make any payments of principal of or interest
	on, or repurchase or redeem, any of its debt securities that rank
	pari passu
	in all respects with
	(or junior in interest to) the Debentures.
	     
	Section 3.2.
	Offices for Notices and Payments, etc
	.
	So long as any of the Debentures remain outstanding, the Company will maintain in Wilmington,
	Delaware, an office or agency where the Debentures may be presented for payment, an office or
	agency where the Debentures may be presented for registration of transfer and for exchange as in
	this Indenture provided and an office or agency where notices and demands to or upon the Company in
	respect of the Debentures or of this Indenture may be served. The Company will give to the Trustee
	written notice of the location of any such office or agency and of any change of location thereof.
	Until otherwise designated from time to time by the Company in a notice to the Trustee, or
	specified as contemplated by Section 2.5, such office or agency for all of the above purposes shall
	be the office or agency of the Trustee. In case the Company shall fail to maintain any such office
	or agency in Wilmington, Delaware,
	or shall fail to give such notice of the location or of any change in the location thereof,
	presentations and demands may be made and notices may be served at the Principal Office of the
	Trustee.
	     In addition to any such office or agency, the Company may from time to time designate one or
	more offices or agencies outside Wilmington, Delaware, where the Debentures may be presented for
	registration of transfer and for exchange in the manner provided in this Indenture, and the Company
	may from time to time rescind such designation, as the Company may deem desirable or expedient;
	provided
	,
	however
	, that no such designation or rescission shall in any manner
	relieve the Company of its obligation to maintain any such office or agency in Wilmington,
	Delaware, for the purposes above mentioned. The Company will give to the Trustee prompt written
	notice of any such designation or rescission thereof.
	     
	Section 3.3.
	Appointments to Fill Vacancies in Trustees Office
	.
	The Company, whenever necessary to avoid or fill a vacancy in the office of Trustee, will
	appoint, in the manner provided in Section 6.9, a Trustee, so that there shall at all times be a
	Trustee hereunder.
	     
	Section 3.4.
	Provision as to Paying Agent
	.
	     (a) If the Company shall appoint a paying agent other than the Trustee, it will cause such
	paying agent to execute and deliver to the Trustee an instrument in which such agent shall agree
	with the Trustee, subject to the provision of this Section 3.4,
	(1) that it will hold all sums held by it as such agent for the payment of the
	principal of and premium, if any, or interest, if any, on the Debentures (whether
	such sums have
	Texas Capital Bancshares, Inc./Indenture
	17
 
	 
	been paid to it by the Company or by any other obligor on the
	Debentures) in trust for the benefit of the holders of the Debentures;
	(2) that it will give the Trustee prompt written notice of any failure by the
	Company (or by any other obligor on the Debentures) to make any payment of the
	principal of and premium, if any, or interest, if any, on the Debentures when the
	same shall be due and payable; and
	(3) that it will, at any time during the continuance of any Event of Default, upon
	the written request of the Trustee, forthwith pay to the Trustee all sums so held in
	trust by such paying agent.
	     (b) If the Company shall act as its own paying agent, it will, on or before each due date of
	the principal of and premium, if any, or interest or other payments, if any, on the Debentures, set
	aside, segregate and hold in trust for the benefit of the holders of the Debentures a sum
	sufficient to pay such principal, premium, interest or other payments so becoming due and will
	notify the Trustee in writing of any failure to take such action and of any failure by the Company
	(or by any other obligor under the Debentures) to make any payment of the principal of and premium,
	if any, or interest or other payments, if any, on the Debentures when the same shall become due and
	payable.
	     Whenever the Company shall have one or more paying agents for the Debentures, it will, on or
	prior to each due date of the principal of and premium, if any, or interest, if any, on the
	Debentures, deposit with a paying agent a sum sufficient to pay the principal, premium, interest or
	other payments so becoming due, such sum to be held in trust for the benefit of the Persons
	entitled thereto and (unless such paying agent is the Trustee) the Company shall promptly notify
	the Trustee in writing of its action or failure to act.
	     (c) Anything in this Section 3.4 to the contrary notwithstanding, the Company may, at any
	time, for the purpose of obtaining a satisfaction and discharge with respect to the Debentures, or
	for any other reason, pay, or direct any paying agent to pay to the Trustee all sums held in trust
	by the Company or any such paying agent, such sums to be held by the Trustee upon the trusts herein
	contained.
	     (d) Anything in this Section 3.4 to the contrary notwithstanding, the agreement to hold sums
	in trust as provided in this Section 3.4 is subject to Sections 12.3 and 12.4.
	     
	Section 3.5.
	Certificate to Trustee
	.
	The Company will deliver to the Trustee on or before 120 days after the end of each fiscal
	year, so long as Debentures are outstanding hereunder, a Certificate stating that in the course of
	the performance by the signers of their duties as officers of the Company they would normally have
	knowledge of any default during such fiscal year by the Company in the performance of any covenants
	contained herein, stating whether or not they have knowledge of any such default and, if so,
	specifying each such default of which the signers have knowledge and the nature and status thereof.
	A form of this Certificate is attached hereto as
	Exhibit B
	.
	     
	Section 3.6.
	Additional Sums
	.
	If and for so long as the Trust is the holder of all Debentures and the Trust is required to
	pay any additional taxes (including withholding taxes), duties, assessments or other governmental
	charges as a result of a Tax Event, the Company will pay such additional amounts (
	Additional
	Sums
	) on the Debentures as shall be required so that the net amounts received and retained by
	the Trust after paying taxes (including withholding taxes), duties, assessments or other
	governmental charges will be equal to the amounts the Trust would have received if no such taxes,
	duties, assessments or other governmental charges had been imposed. Whenever in this Indenture or
	the Debentures there is a reference in any context to the payment of principal of or interest on
	the Debentures, such mention shall be deemed to include mention of payments of the Additional Sums
	provided for in this paragraph to the
	Texas Capital Bancshares, Inc./Indenture
	18
 
	 
	extent that, in such context, Additional Sums are, were or
	would be payable in respect thereof pursuant to the provisions of this paragraph and express
	mention of the payment of Additional Sums (if applicable) in any provisions hereof shall not be
	construed as excluding Additional Sums in those provisions hereof where such express mention is not
	made;
	provided
	,
	however
	, that the deferral of the payment of interest during an
	Extension Period pursuant to Section 2.11 shall not defer the payment of any Additional Sums that
	may be due and payable.
	     
	Section 3.7.
	Compliance with Consolidation Provisions
	.
	The Company will not, while any of the Debentures remain outstanding, consolidate with, or
	merge into, or merge into itself, or sell or convey all or substantially all of its property to any
	other Person unless the provisions of Article XI hereof are complied with.
	     
	Section 3.8.
	Limitation on Dividends
	.
	If Debentures are initially issued to the Trust or a trustee of such Trust in connection with
	the issuance of Trust Securities by the Trust (regardless of whether Debentures continue to be held
	by such Trust) and (i) there shall have occurred and be continuing an Event of Default, (ii) the
	Company shall be in default with respect to its payment of any obligations under the Capital
	Securities Guarantee, or (iii) the Company shall have given notice of its election to defer
	payments of interest on the Debentures by extending the interest payment period as provided herein
	and such period, or any extension thereof, shall be continuing, then the Company shall not, and
	shall not allow any Affiliate of the Company to, (x) declare or pay any dividends or distributions
	on, or redeem, purchase, acquire, or make a liquidation
	payment with respect to, any of the Companys capital stock or its Affiliates capital stock
	(other than payments of dividends or distributions to the Company) or make any guarantee payments
	with respect to the foregoing or (y) make any payment of principal of or interest or premium, if
	any, on or repay, repurchase or redeem any debt securities of the Company or any Affiliate that
	rank
	pari passu
	in all respects with or junior in interest to the Debentures (other than, with
	respect to clauses (x) and (y) above, (1) repurchases, redemptions or other acquisitions of shares
	of capital stock of the Company in connection with any employment contract, benefit plan or other
	similar arrangement with or for the benefit of one or more employees, officers, directors or
	consultants, in connection with a dividend reinvestment or stockholder stock purchase plan or in
	connection with the issuance of capital stock of the Company (or securities convertible into or
	exercisable for such capital stock) as consideration in an acquisition transaction entered into
	prior to the applicable Extension Period, if any, (2) as a result of any exchange or conversion of
	any class or series of the Companys capital stock (or any capital stock of a subsidiary of the
	Company) for any class or series of the Companys capital stock or of any class or series of the
	Companys indebtedness for any class or series of the Companys capital stock, (3) the purchase of
	fractional interests in shares of the Companys capital stock pursuant to the conversion or
	exchange provisions of such capital stock or the security being converted or exchanged, (4) any
	declaration of a dividend in connection with any stockholders rights plan, or the issuance of
	rights, stock or other property under any stockholders rights plan, or the redemption or
	repurchase of rights pursuant thereto, (5) any dividend in the form of stock, warrants, options or
	other rights where the dividend stock or the stock issuable upon exercise of such warrants, options
	or other rights is the same stock as that on which the dividend is being paid or ranks
	pari passu
	with or junior to such stock and any cash payments in lieu of fractional shares issued in
	connection therewith, or (6) payments under the Capital Securities Guarantee).
	     
	Section 3.9.
	Covenants as to the Trust
	.
	For so long as the Trust Securities remain outstanding, the Company shall maintain 100%
	ownership of the Common Securities;
	provided
	,
	however
	, that any permitted successor
	of the Company under this Indenture may succeed to the Companys ownership of such Common
	Securities. The Company, as owner of the Common Securities, shall, except in connection with a
	distribution of Debentures to the holders of Trust Securities in liquidation of the Trust, the
	redemption of all of the Trust Securities or certain mergers, consolidations or amalgamations, each
	as permitted by the Declaration, cause the Trust (a) to remain a statutory trust, (b) to otherwise
	Texas Capital Bancshares, Inc./Indenture
	19
 
	 
	continue to be classified as a grantor trust for United States federal income tax purposes,
	and (c) to cause each holder of Trust Securities to be treated as owning an undivided beneficial
	interest in the Debentures.
	     
	Section 3.10.
	Additional Junior Indebtedness
	. The Company shall not, and it shall not
	cause or permit any Subsidiary of the Company to, incur, issue or be obligated on any Additional
	Junior Indebtedness, either directly or indirectly, by way of guarantee, suretyship or otherwise,
	other than Additional Junior Indebtedness (i) that, by its terms, is expressly stated to be either
	junior and subordinate or
	pari passu
	in all respects to the Debentures, and (ii) of which the
	Company has notified (and, if then required under the applicable guidelines of the regulating
	entity, has received approval from) the Federal Reserve, if the Company is a bank holding company,
	or the OTS, if the Company is a savings and loan holding company.
	ARTICLE IV.
	SECURITYHOLDERS LISTS AND REPORTS
	BY THE COMPANY AND THE TRUSTEE
	     
	Section 4.1.
	Securityholders Lists
	.
	The Company covenants and agrees that it will
	furnish or cause to be furnished to the Trustee:
	     (a) on each regular record date for the Debentures, a list, in such form as the Trustee may
	reasonably require, of the names and addresses of the Securityholders of the Debentures as of such
	record date; and
	     (b) at such other times as the Trustee may request in writing, within 30 days after the
	receipt by the Company of any such request, a list of similar form and content as of a date not
	more than 15 days prior to the time such list is furnished;
	except that no such lists need be furnished under this Section 4.1 so long as the Trustee is in
	possession thereof by reason of its acting as Debenture registrar.
	     
	Section 4.2.
	Preservation and Disclosure of Lists
	.
	     (a) The Trustee shall preserve, in as current a form as is reasonably practicable, all
	information as to the names and addresses of the holders of Debentures (1) contained in the most
	recent list furnished to it as provided in Section 4.1 or (2) received by it in the capacity of
	Debentures registrar (if so acting) hereunder. The Trustee may destroy any list furnished to it as
	provided in Section 4.1 upon receipt of a new list so furnished.
	     (b) In case three or more holders of Debentures (hereinafter referred to as applicants)
	apply in writing to the Trustee and furnish to the Trustee reasonable proof that each such
	applicant has owned a Debenture for a period of at least 6 months preceding the date of such
	application, and such application states that the applicants desire to communicate with other
	holders of Debentures with respect to their rights under this Indenture or under such Debentures
	and is accompanied by a copy of the form of proxy or other communication which such applicants
	propose to transmit, then the Trustee shall within 5 Business Days after the receipt of such
	application, at its election, either:
	(1) afford such applicants access to the information preserved at the time by the
	Trustee in accordance with the provisions of subsection (a) of this Section 4.2, or
	(2) inform such applicants as to the approximate number of holders of Debentures
	whose names and addresses appear in the information preserved at the time by the
	Trustee in accordance with the provisions of subsection (a) of this Section 4.2, and
	as to
	Texas Capital Bancshares, Inc./Indenture
	20
 
	 
	the approximate cost of mailing to such Securityholders the form of proxy or
	other communication, if any, specified in such application.
	     If the Trustee shall elect not to afford such applicants access to such information, the
	Trustee shall, upon the written request of such applicants, mail to each Securityholder whose name
	and address appear in the information preserved at the time by the Trustee in accordance with the
	provisions of subsection (a) of this Section 4.2 a copy of the form of proxy or other communication
	which is specified in such request with reasonable promptness after a tender to the Trustee of the
	material to be mailed and of payment, or provision for the payment, of the reasonable expenses of
	mailing, unless within five days after such tender, the Trustee shall mail to such applicants and
	file with the Securities and Exchange Commission, if permitted or required by applicable law,
	together with a copy of the material to be mailed,
	a written statement to the effect that, in the opinion of the Trustee, such mailing would be
	contrary to the best interests of the holders of all Debentures, as the case may be, or would be in
	violation of applicable law. Such written statement shall specify the basis of such opinion. If
	said Commission, as permitted or required by applicable law, after opportunity for a hearing upon
	the objections specified in the written statement so filed, shall enter an order refusing to
	sustain any of such objections or if, after the entry of an order sustaining one or more of such
	objections, said Commission shall find, after notice and opportunity for hearing, that all the
	objections so sustained have been met and shall enter an order so declaring, the Trustee shall mail
	copies of such material to all such Securityholders with reasonable promptness after the entry of
	such order and the renewal of such tender; otherwise the Trustee shall be relieved of any
	obligation or duty to such applicants respecting their application.
	     (c) Each and every holder of Debentures, by receiving and holding the same, agrees with the
	Company and the Trustee that neither the Company nor the Trustee nor any paying agent shall be held
	accountable by reason of the disclosure of any such information as to the names and addresses of
	the holders of Debentures in accordance with the provisions of subsection (b) of this Section 4.2,
	regardless of the source from which such information was derived, and that the Trustee shall not be
	held accountable by reason of mailing any material pursuant to a request made under said subsection
	(b).
	ARTICLE V.
	REMEDIES OF THE TRUSTEE AND SECURITYHOLDERS
	UPON AN EVENT OF DEFAULT
	     
	Section 5.1.
	Events of Default
	. Event of Default, wherever used herein, means any
	one of the following events (whatever the reason for such Event of Default and whether it shall be
	voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or
	order of any court or any order, rule or regulation of any administrative or governmental body):
	     (a) the Company defaults in the payment of any interest upon any Debenture, including any
	Additional Interest in respect thereof, following the nonpayment of any such interest for twenty or
	more consecutive Distribution Periods; or
	     (b) the Company defaults in the payment of all or any part of the principal of (or premium, if
	any, on) any Debentures as and when the same shall become due and payable either at maturity, upon
	redemption, by declaration of acceleration or otherwise; or
	     (c) the Company defaults in the performance of, or breaches, any of its covenants or
	agreements in this Indenture or in the terms of the Debentures established as contemplated in this
	Indenture (other than a covenant or agreement a default in whose performance or whose breach is
	elsewhere in this Section specifically dealt with), and continuance of such default or breach for a
	period of 60 days after there has been given, by registered or certified mail, to the Company by
	the Trustee or to the Company and the Trustee by the holders of at least 25% in aggregate principal
	amount of the
	Texas Capital Bancshares, Inc./Indenture
	21
 
	 
	outstanding Debentures, a written notice specifying such default or breach and
	requiring it to be remedied and stating that such notice is a Notice of Default hereunder; or
	     (d) a court of competent jurisdiction shall enter a decree or order for relief in respect of
	the Company in an involuntary case under any applicable bankruptcy, insolvency, reorganization or
	other similar law now or hereafter in effect, or appointing a receiver, liquidator, assignee,
	custodian, trustee, sequestrator (or similar official) of the Company or for any substantial part
	of its property, or ordering the winding-up or liquidation of its affairs and such decree or order
	shall remain unstayed and in effect for a period of 90 consecutive days; or
	     (e) the Company shall commence a voluntary case under any applicable bankruptcy, insolvency,
	reorganization or other similar law now or hereafter in effect, shall consent to the entry of an
	order for relief in an involuntary case under any such law, or shall consent to the appointment of
	or taking possession by a receiver, liquidator, assignee, trustee, custodian, sequestrator (or
	other similar official) of the Company or of any substantial part of its property, or shall make
	any general assignment for the benefit of creditors, or shall fail generally to pay its debts as
	they become due; or
	     (f) the Trust shall have voluntarily or involuntarily liquidated, dissolved, wound-up its
	business or otherwise terminated its existence except in connection with (i) the distribution of
	the Debentures to holders of such Trust Securities in liquidation of their interests in the Trust,
	(ii) the redemption of all of the outstanding Trust Securities or (iii) certain mergers,
	consolidations or amalgamations, each as permitted by the Declaration.
	     If an Acceleration Event of Default occurs and is continuing with respect to the Debentures,
	then, and in each and every such case, unless the principal of the Debentures shall have already
	become due and payable, either the Trustee or the holders of not less than 25% in aggregate
	principal amount of the Debentures then outstanding hereunder, by notice in writing to the Company
	(and to the Trustee if given by Securityholders), may declare the entire principal of the
	Debentures and the interest accrued thereon, if any, to be due and payable immediately, and upon
	any such declaration the same shall become immediately due and payable. If an Event of Default
	under Section 5.1(b) or (c) occurs and is continuing with respect to the Debentures, then, and in
	each and every such case, unless the principal of the Debentures shall have already become due and
	payable, either the Trustee or the holders of not less than 25% in aggregate principal amount of
	the Debentures then outstanding hereunder, by notice in writing to the Company (and to the Trustee
	if given by Securityholders), may proceed to remedy the default or breach thereunder by such
	appropriate judicial proceedings as the Trustee or such holders shall deem most effectual to remedy
	the defaulted covenant or enforce the provisions of this Indenture so breached, either by suit in
	equity or by action at law, for damages or otherwise.
	     The foregoing provisions, however, are subject to the condition that if, at any time after the
	principal of the Debentures shall have been so declared due and payable, and before any judgment or
	decree for the payment of the moneys due shall have been obtained or entered as hereinafter
	provided, (i) the Company shall pay or shall deposit with the Trustee a sum sufficient to pay all
	matured installments of interest upon all the Debentures and the principal of and premium, if any,
	on the Debentures which shall have become due otherwise than by acceleration (with interest upon
	such principal and premium, if any, and Additional Interest) and such amount as shall be sufficient
	to cover reasonable compensation to the Trustee and each predecessor Trustee, their respective
	agents, attorneys and counsel, and all other amounts due to the Trustee pursuant to Section 6.6, if
	any, and (ii) all Events of Default under this Indenture, other than the non-payment of the
	principal of or premium, if any, on Debentures which shall have become due by acceleration, shall
	have been cured, waived or otherwise remedied as provided herein  then and in every such case the
	holders of a majority in aggregate principal amount of the Debentures then outstanding, by written
	notice to the Company and to the Trustee, may
	Texas Capital Bancshares, Inc./Indenture
	22
 
	 
	waive all defaults and rescind and annul such
	declaration and its consequences, but no such waiver or rescission and annulment shall extend to or
	shall affect any subsequent default or shall impair any right consequent thereon.
	     In case the Trustee shall have proceeded to enforce any right under this Indenture and such
	proceedings shall have been discontinued or abandoned because of such rescission or annulment or
	for any other reason or shall have been determined adversely to the Trustee, then and in every such
	case the Company, the Trustee and the holders of the Debentures shall be restored respectively to
	their several positions and rights hereunder, and all rights, remedies and powers of the Company,
	the Trustee and the holders of the Debentures shall continue as though no such proceeding had been
	taken.
	     
	Section 5.2.
	Payment of Debentures on Default; Suit Therefor
	.
	The Company covenants
	that upon the occurrence of an Event of Default pursuant to Section 5.1(a) or (b) then, upon demand
	of the Trustee, the Company will pay to the Trustee, for the benefit of the holders of the
	Debentures the whole amount that then shall have become due and payable on all Debentures for
	principal and premium, if any, or interest, or both, as the case may be, with Additional Interest
	accrued on the Debentures (to the extent that payment of such interest is enforceable under
	applicable law and, if the Debentures are held by the Trust or a trustee of such Trust, without
	duplication of any other amounts paid by the Trust or a trustee in respect thereof); and, in
	addition thereto, such further amount as shall be sufficient to cover the costs and expenses of
	collection, including a reasonable compensation to the Trustee, its agents, attorneys and counsel,
	and any other amounts due to the Trustee under Section 6.6. In case the Company shall fail
	forthwith to pay such amounts upon such demand, the Trustee, in its own name and as trustee of an
	express trust, shall be entitled and empowered to institute any actions or proceedings at law or in
	equity for the collection of the sums so due and unpaid, and may prosecute any such action or
	proceeding to judgment or final decree, and may enforce any such judgment or final decree against
	the Company or any other obligor on such Debentures and collect in the manner provided by law out
	of the property of the Company or any other obligor on such Debentures wherever situated the moneys
	adjudged or decreed to be payable.
	     In case there shall be pending proceedings for the bankruptcy or for the reorganization of the
	Company or any other obligor on the Debentures under Bankruptcy Law, or in case a receiver or
	trustee shall have been appointed for the property of the Company or such other obligor, or in the
	case of any other similar judicial proceedings relative to the Company or other obligor upon the
	Debentures, or to the creditors or property of the Company or such other obligor, the Trustee,
	irrespective of whether the principal of the Debentures shall then be due and payable as therein
	expressed or by declaration of acceleration or otherwise and irrespective of whether the Trustee
	shall have made any demand pursuant to the provisions of this Section 5.2, shall be entitled and
	empowered, by intervention in such proceedings or otherwise,
|  | (i) |  | to file and prove a claim or claims for the whole amount of principal and
	interest owing and unpaid in respect of the Debentures, | 
|  | 
|  | (ii) |  | in case of any judicial proceedings, to file such proofs of claim and other
	papers or documents as may be necessary or advisable in order to have the claims of the
	Trustee (including any claim for reasonable compensation to the Trustee and each
	predecessor Trustee, and their respective agents, attorneys and counsel, and for
	reimbursement of all other amounts due to the Trustee under Section 6.6), and of the
	Securityholders allowed in such judicial proceedings relative to the Company or any
	other obligor on the Debentures, or to the creditors or property of the Company or such
	other obligor, unless prohibited by applicable law and regulations, to vote on behalf
	of the holders of the Debentures in any election of a trustee or a standby trustee in
	arrangement, | 
 
	Texas Capital Bancshares, Inc./Indenture
	23
 
	 
|  |  |  | reorganization, liquidation or other bankruptcy or insolvency proceedings
	or Person performing similar functions in comparable proceedings, | 
|  | 
|  | (iii) |  | to collect and receive any moneys or other property payable or deliverable on
	any such claims, and | 
|  | 
|  | (iv) |  | to distribute the same after the deduction of its charges and expenses. | 
 
	Any receiver, assignee or trustee in bankruptcy or reorganization is hereby authorized by each of
	the Securityholders to make such payments to the Trustee, and, in the event that the Trustee shall
	consent to the making of such payments directly to the Securityholders, to pay to the Trustee such
	amounts as shall
	be sufficient to cover reasonable compensation to the Trustee, each predecessor Trustee and their
	respective agents, attorneys and counsel, and all other amounts due to the Trustee under Section
	6.6.
	     Nothing herein contained shall be construed to authorize the Trustee to authorize or consent
	to or accept or adopt on behalf of any Securityholder any plan of reorganization, arrangement,
	adjustment or composition affecting the Debentures or the rights of any holder thereof or to
	authorize the Trustee to vote in respect of the claim of any Securityholder in any such proceeding.
	     All rights of action and of asserting claims under this Indenture, or under any of the
	Debentures, may be enforced by the Trustee without the possession of any of the Debentures, or the
	production thereof at any trial or other proceeding relative thereto, and any such suit or
	proceeding instituted by the Trustee shall be brought in its own name as trustee of an express
	trust, and any recovery of judgment shall be for the ratable benefit of the holders of the
	Debentures.
	     In any proceedings brought by the Trustee (and also any proceedings involving the
	interpretation of any provision of this Indenture to which the Trustee shall be a party), the
	Trustee shall be held to represent all the holders of the Debentures, and it shall not be necessary
	to make any holders of the Debentures parties to any such proceedings.
	     
	Section 5.3.
	Application of Moneys Collected by Trustee
	.
	Any moneys collected by the
	Trustee pursuant to this Article V shall be applied in the following order, at the date or dates
	fixed by the Trustee for the distribution of such moneys, upon presentation of the several
	Debentures in respect of which moneys have been collected, and stamping thereon the payment, if
	only partially paid, and upon surrender thereof if fully paid:
	     First: To the payment of costs and expenses incurred by, and reasonable fees of, the Trustee,
	its agents, attorneys and counsel, and of all other amounts due to the Trustee under Section 6.6;
	     Second: To the payment of all Senior Indebtedness of the Company if and to the extent
	required by Article XV;
	     Third: To the payment of the amounts then due and unpaid upon Debentures for principal (and
	premium, if any), and interest on the Debentures, in respect of which or for the benefit of which
	money has been collected, ratably, without preference or priority of any kind, according to the
	amounts due on such Debentures (including Additional Interest); and
	     Fourth: The balance, if any, to the Company.
	     
	Section 5.4.
	Proceedings by Securityholders
	.
	No holder of any Debenture shall have
	any right to institute any suit, action or proceeding for any remedy hereunder, unless such holder
	previously shall have given to the Trustee written notice of an Event of Default with respect to
	the Debentures and
	Texas Capital Bancshares, Inc./Indenture
	24
 
	 
	unless the holders of not less than 25% in aggregate principal amount of the
	Debentures then outstanding shall have given the Trustee a written request to institute such
	action, suit or proceeding and shall have offered to the Trustee such reasonable indemnity as it
	may require against the costs, expenses and liabilities to be incurred thereby, and the Trustee for
	60 days after its receipt of such notice, request and offer of indemnity shall have failed to
	institute any such action, suit or proceeding.
	     Notwithstanding any other provisions in this Indenture, however, the right of any holder of
	any Debenture to receive payment of the principal of, premium, if any, and interest, on such
	Debenture when
	due, or to institute suit for the enforcement of any such payment, shall not be impaired or
	affected without the consent of such holder and by accepting a Debenture hereunder it is expressly
	understood, intended and covenanted by the taker and holder of every Debenture with every other
	such taker and holder and the Trustee, that no one or more holders of Debentures shall have any
	right in any manner whatsoever by virtue or by availing itself of any provision of this Indenture
	to affect, disturb or prejudice the rights of the holders of any other Debentures, or to obtain or
	seek to obtain priority over or preference to any other such holder, or to enforce any right under
	this Indenture, except in the manner herein provided and for the equal, ratable and common benefit
	of all holders of Debentures. For the protection and enforcement of the provisions of this
	Section, each and every Securityholder and the Trustee shall be entitled to such relief as can be
	given either at law or in equity.
	     
	Section 5.5.
	Proceedings by Trustee
	.
	In case of an Event of Default hereunder the
	Trustee may in its discretion proceed to protect and enforce the rights vested in it by this
	Indenture by such appropriate judicial proceedings as the Trustee shall deem most effectual to
	protect and enforce any of such rights, either by suit in equity or by action at law or by
	proceeding in bankruptcy or otherwise, whether for the specific enforcement of any covenant or
	agreement contained in this Indenture or in aid of the exercise of any power granted in this
	Indenture, or to enforce any other legal or equitable right vested in the Trustee by this Indenture
	or by law.
	     
	Section 5.6.
	Remedies Cumulative and Continuing; Delay or Omission Not a Waiver
	.
	Except as otherwise provided in Section 2.6, all powers and remedies given by this Article V to the
	Trustee or to the Securityholders shall, to the extent permitted by law, be deemed cumulative and
	not exclusive of any other powers and remedies available to the Trustee or the holders of the
	Debentures, by judicial proceedings or otherwise, to enforce the performance or observance of the
	covenants and agreements contained in this Indenture or otherwise established with respect to the
	Debentures, and no delay or omission of the Trustee or of any holder of any of the Debentures to
	exercise any right, remedy or power accruing upon any Event of Default occurring and continuing as
	aforesaid shall impair any such right, remedy or power, or shall be construed to be a waiver of any
	such default or an acquiescence therein; and, subject to the provisions of Section 5.4, every power
	and remedy given by this Article V or by law to the Trustee or to the Securityholders may be
	exercised from time to time, and as often as shall be deemed expedient, by the Trustee (in
	accordance with its duties under Section 6.1) or by the Securityholders.
	     
	Section 5.7.
	Direction of Proceedings and Waiver of Defaults by Majority of
	Securityholders
	.
	The holders of a majority in aggregate principal amount of the Debentures
	affected (voting as one class) at the time outstanding shall have the right to direct the time,
	method, and place of conducting any proceeding for any remedy available to the Trustee, or
	exercising any trust or power conferred on the Trustee with respect to such Debentures;
	provided
	,
	however
	, that (subject to the provisions of Section 6.1) the Trustee
	shall have the right to decline to follow any such direction if the Trustee shall determine that
	the action so directed would be unjustly prejudicial to the holders not taking part in such
	direction or if the Trustee being advised by counsel determines that the action or proceeding so
	directed may not lawfully be taken or if a Responsible Officer of the Trustee shall determine that
	the action or proceedings so directed would involve the Trustee in personal liability.
	Texas Capital Bancshares, Inc./Indenture
	25
 
	 
	     The holders of a majority in aggregate principal amount of the Debentures at the time
	outstanding may on behalf of the holders of all of the Debentures waive (or modify any previously
	granted waiver of) any past default or Event of Default, and its consequences, except a default (a)
	in the payment of principal of, premium, if any, or interest on any of the Debentures, (b) in
	respect of covenants or provisions hereof
	which cannot be modified or amended without the consent of the holder of each Debenture
	affected, or (c) in respect of the covenants contained in Section 3.9;
	provided
	,
	however
	, that if the Debentures are held by the Trust or a trustee of such trust, such
	waiver or modification to such waiver shall not be effective until the holders of a majority in
	Liquidation Amount of Trust Securities of the Trust shall have consented to such waiver or
	modification to such waiver,
	provided
	,
	further
	, that if the consent of the holder
	of each outstanding Debenture is required, such waiver shall not be effective until each holder of
	the Trust Securities of the Trust shall have consented to such waiver. Upon any such waiver, the
	default covered thereby shall be deemed to be cured for all purposes of this Indenture and the
	Company, the Trustee and the holders of the Debentures shall be restored to their former positions
	and rights hereunder, respectively; but no such waiver shall extend to any subsequent or other
	default or Event of Default or impair any right consequent thereon. Whenever any default or Event
	of Default hereunder shall have been waived as permitted by this Section, said default or Event of
	Default shall for all purposes of the Debentures and this Indenture be deemed to have been cured
	and to be not continuing.
	     
	Section 5.8.
	Notice of Defaults
	.
	The Trustee shall, within 90 days after the actual
	knowledge by a Responsible Officer of the Trustee of the occurrence of a default with respect to
	the Debentures, mail to all Securityholders, as the names and addresses of such holders appear upon
	the Debenture Register, notice of all defaults with respect to the Debentures known to the Trustee,
	unless such defaults shall have been cured before the giving of such notice (the term defaults
	for the purpose of this Section 5.8 being hereby defined to be the events specified in clauses (a),
	(b), (c), (d), (e) and (f) of Section 5.1, not including periods of grace, if any, provided for
	therein);
	provided
	,
	however
	, that, except in the case of default in the payment of
	the principal of, premium, if any, or interest on any of the Debentures, the Trustee shall be
	protected in withholding such notice if and so long as a Responsible Officer of the Trustee in good
	faith determines that the withholding of such notice is in the interests of the Securityholders.
	     
	Section 5.9.
	Undertaking to Pay Costs
	.
	All parties to this Indenture agree, and each
	holder of any Debenture by his acceptance thereof shall be deemed to have agreed, that any court
	may in its discretion require, in any suit for the enforcement of any right or remedy under this
	Indenture, or in any suit against the Trustee for any action taken or omitted by it as Trustee, the
	filing by any party litigant in such suit of an undertaking to pay the costs of such suit, and that
	such court may in its discretion assess reasonable costs, including reasonable attorneys fees and
	expenses, against any party litigant in such suit, having due regard to the merits and good faith
	of the claims or defenses made by such party litigant;
	provided
	,
	however
	, that the
	provisions of this Section 5.9 shall not apply to any suit instituted by the Trustee, to any suit
	instituted by any Securityholder, or group of Securityholders, holding in the aggregate more than
	10% in principal amount of the Debentures outstanding, or to any suit instituted by any
	Securityholder for the enforcement of the payment of the principal of (or premium, if any) or
	interest on any Debenture against the Company on or after the same shall have become due and
	payable.
	ARTICLE VI.
	CONCERNING THE TRUSTEE
	     
	Section 6.1.
	Duties and Responsibilities of Trustee
	.
	With respect to the holders of
	Debentures issued hereunder, the Trustee, prior to the occurrence of an Event of Default with
	respect to the Debentures and after the curing or waiving of all Events of Default which may have
	occurred, with respect to the Debentures, undertakes to perform such duties and only such duties as
	are specifically set forth in this Indenture, and no implied covenants shall be read into this
	Indenture against the Trustee. In
	Texas Capital Bancshares, Inc./Indenture
	26
 
	 
	case an Event of Default with respect to the Debentures has
	occurred (which has not been cured or waived), the Trustee shall exercise such of the rights
	and powers vested in it by this Indenture, and use the same degree of care and skill in their
	exercise, as a prudent man would exercise or use under the circumstances in the conduct of his own
	affairs.
	     No provision of this Indenture shall be construed to relieve the Trustee from liability for
	its own negligent action, its own negligent failure to act or its own willful misconduct, except
	that:
	     (a) prior to the occurrence of an Event of Default with respect to Debentures and after the
	curing or waiving of all Events of Default which may have occurred
	(1) the duties and obligations of the Trustee with respect to Debentures shall be
	determined solely by the express provisions of this Indenture, and the Trustee shall
	not be liable except for the performance of such duties and obligations with respect
	to the Debentures as are specifically set forth in this Indenture, and no implied
	covenants or obligations shall be read into this Indenture against the Trustee, and
	(2) in the absence of bad faith on the part of the Trustee, the Trustee may
	conclusively rely, as to the truth of the statements and the correctness of the
	opinions expressed therein, upon any certificates or opinions furnished to the
	Trustee and conforming to the requirements of this Indenture; but, in the case of
	any such certificates or opinions which by any provision hereof are specifically
	required to be furnished to the Trustee, the Trustee shall be under a duty to
	examine the same to determine whether or not they conform to the requirements of
	this Indenture;
	     (b) the Trustee shall not be liable for any error of judgment made in good faith by a
	Responsible Officer or Officers of the Trustee, unless it shall be proved that the Trustee was
	negligent in ascertaining the pertinent facts; and
	     (c) the Trustee shall not be liable with respect to any action taken or omitted to be taken by
	it in good faith, in accordance with the direction of the Securityholders pursuant to Section 5.7,
	relating to the time, method and place of conducting any proceeding for any remedy available to the
	Trustee, or exercising any trust or power conferred upon the Trustee, under this Indenture.
	     None of the provisions contained in this Indenture shall require the Trustee to expend or risk
	its own funds or otherwise incur personal financial liability in the performance of any of its
	duties or in the exercise of any of its rights or powers, if there is ground for believing that the
	repayment of such funds or liability is not assured to it under the terms of this Indenture or
	indemnity satisfactory to the Trustee against such risk is not reasonably assured to it.
	     
	Section 6.2.
	Reliance on Documents, Opinions, etc
	.
	Except as otherwise provided in
	Section 6.1:
	     (a) the Trustee may conclusively rely and shall be fully protected in acting or refraining
	from acting upon any resolution, certificate, statement, instrument, opinion, report, notice,
	request, consent, order, bond, note, debenture or other paper or document believed by it to be
	genuine and to have been signed or presented by the proper party or parties;
	     (b) any request, direction, order or demand of the Company mentioned herein shall be
	sufficiently evidenced by an Officers Certificate (unless other evidence in respect thereof be
	herein specifically prescribed); and any Board Resolution may be evidenced to the Trustee by a copy
	thereof certified by the Secretary or an Assistant Secretary of the Company;
	Texas Capital Bancshares, Inc./Indenture
	27
 
	 
	     (c) the Trustee may consult with counsel of its selection and any advice or Opinion of Counsel
	shall be full and complete authorization and protection in respect of any action taken, suffered or
	omitted by it hereunder in good faith and in accordance with such advice or Opinion of Counsel;
	     (d) the Trustee shall be under no obligation to exercise any of the rights or powers vested in
	it by this Indenture at the request, order or direction of any of the Securityholders, pursuant to
	the provisions of this Indenture, unless such Securityholders shall have offered to the Trustee
	reasonable security or indemnity against the costs, expenses and liabilities which may be incurred
	therein or thereby;
	     (e) the Trustee shall not be liable for any action taken or omitted by it in good faith and
	believed by it to be authorized or within the discretion or rights or powers conferred upon it by
	this Indenture; nothing contained herein shall, however, relieve the Trustee of the obligation,
	upon the occurrence of an Event of Default with respect to the Debentures (that has not been cured
	or waived) to exercise with respect to Debentures such of the rights and powers vested in it by
	this Indenture, and to use the same degree of care and skill in their exercise, as a prudent man
	would exercise or use under the circumstances in the conduct of his own affairs;
	     (f) the Trustee shall not be bound to make any investigation into the facts or matters stated
	in any resolution, certificate, statement, instrument, opinion, report, notice, request, consent,
	order, approval, bond, debenture, coupon or other paper or document, unless requested in writing to
	do so by the holders of not less than a majority in aggregate principal amount of the outstanding
	Debentures affected thereby;
	provided
	,
	however
	, that if the payment within a
	reasonable time to the Trustee of the costs, expenses or liabilities likely to be incurred by it in
	the making of such investigation is, in the opinion of the Trustee, not reasonably assured to the
	Trustee by the security afforded to it by the terms of this Indenture, the Trustee may require
	reasonable indemnity against such expense or liability as a condition to so proceeding;
	     (g) the Trustee may execute any of the trusts or powers hereunder or perform any duties
	hereunder either directly or by or through agents (including any Authenticating Agent) or
	attorneys, and the Trustee shall not be responsible for any misconduct or negligence on the part of
	any such agent or attorney appointed by it with due care; and
	     (h) with the exceptions of defaults under Sections 5.1(a) or (b), the Trustee shall not be
	charged with knowledge of any Default or Event of Default with respect to the Debentures unless a
	written notice of such Default or Event of Default shall have been given to the Trustee by the
	Company or any other obligor on the Debentures or by any holder of the Debentures.
	     
	Section 6.3.
	No Responsibility for Recitals, etc
	.
	The recitals contained herein and
	in the Debentures (except in the certificate of authentication of the Trustee or the Authenticating
	Agent) shall be taken as the statements of the Company, and the Trustee and the Authenticating
	Agent assume no responsibility for the correctness of the same. The Trustee and the Authenticating
	Agent make no representations as to the validity or sufficiency of this Indenture or of the
	Debentures. The Trustee and the Authenticating Agent shall not be accountable for the use or
	application by the Company of any Debentures or the proceeds of any Debentures authenticated and
	delivered by the Trustee or the Authenticating Agent in conformity with the provisions of this
	Indenture.
	     
	Section 6.4.
	Trustee, Authenticating Agent, Paying Agents, Transfer Agents or Registrar
	May Own Debentures
	.
	The Trustee or any Authenticating Agent or any paying agent or any
	transfer agent or any Debenture registrar, in its individual or any other capacity, may become the
	owner or pledgee of
	Debentures with the same rights it would have if it were not Trustee, Authenticating Agent,
	paying agent, transfer agent or Debenture registrar.
	Texas Capital Bancshares, Inc./Indenture
	28
 
	 
	     
	Section 6.5.
	Moneys to be Held in Trust
	.
	Subject to the provisions of Section 12.4,
	all moneys received by the Trustee or any paying agent shall, until used or applied as herein
	provided, be held in trust for the purpose for which they were received, but need not be segregated
	from other funds except to the extent required by law. The Trustee and any paying agent shall be
	under no liability for interest on any money received by it hereunder except as otherwise agreed in
	writing with the Company. So long as no Event of Default shall have occurred and be continuing,
	all interest allowed on any such moneys shall be paid from time to time upon the written order of
	the Company, signed by the Chairman of the Board of Directors, the Chief Executive Officer, the
	President, a Managing Director, a Vice President, the Treasurer or an Assistant Treasurer of the
	Company.
	     
	Section 6.6.
	Compensation and Expenses of Trustee
	.
	The Company covenants and agrees
	to pay or reimburse the Trustee upon its request for all reasonable expenses, disbursements and
	advances incurred or made by the Trustee in accordance with any of the provisions of this Indenture
	(including the reasonable compensation and the expenses and disbursements of its counsel and of all
	Persons not regularly in its employ) except any such expense, disbursement or advance as may arise
	from its negligence or willful misconduct. For purposes of clarification, this Section 6.6 does
	not contemplate the payment by the Company of acceptance or annual administration fees owing to the
	Trustee pursuant to the services to be provided by the Trustee under this Indenture or the fees and
	expenses of the Trustees counsel in connection with the closing of the transactions contemplated
	by this Indenture. The Company also covenants to indemnify each of the Trustee or any predecessor
	Trustee (and its officers, agents, directors and employees) for, and to hold it harmless against,
	any and all loss, damage, claim, liability or expense including taxes (other than taxes based on
	the income of the Trustee) incurred without negligence or willful misconduct on the part of the
	Trustee and arising out of or in connection with the acceptance or administration of this trust,
	including the costs and expenses of defending itself against any claim of liability. The
	obligations of the Company under this Section 6.6 to compensate and indemnify the Trustee and to
	pay or reimburse the Trustee for expenses, disbursements and advances shall constitute additional
	indebtedness hereunder. Such additional indebtedness shall be secured by a lien prior to that of
	the Debentures upon all property and funds held or collected by the Trustee as such, except funds
	held in trust for the benefit of the holders of particular Debentures.
	     Without prejudice to any other rights available to the Trustee under applicable law, when the
	Trustee incurs expenses or renders services in connection with an Event of Default specified in
	Section 5.1(d), (e) or (f), the expenses (including the reasonable charges and expenses of its
	counsel) and the compensation for the services are intended to constitute expenses of
	administration under any applicable federal or state bankruptcy, insolvency or other similar law.
	     The provisions of this Section shall survive the resignation or removal of the Trustee and the
	defeasance or other termination of this Indenture.
	     Notwithstanding anything in this Indenture or any Debenture to the contrary, the Trustee shall
	have no obligation whatsoever to advance funds to pay any principal of or interest on or other
	amounts with respect to the Debentures or otherwise advance funds to or on behalf of the Company.
	     
	Section 6.7.
	Officers Certificate as Evidence
	.
	Except as otherwise provided in Sections 6.1 and 6.2, whenever in the administration of the
	provisions of this Indenture the Trustee shall deem it necessary or desirable that a matter be
	proved or established prior to taking or omitting any action hereunder, such matter (unless other
	evidence in respect thereof be herein specifically prescribed) may, in the absence of negligence or
	willful misconduct on the part of the Trustee, be deemed to be conclusively proved and established
	by an Officers Certificate delivered to the Trustee, and such certificate, in the absence of
	negligence or willful misconduct on the part of the Trustee, shall be full warrant to the Trustee
	for any action taken or omitted by it under the provisions of this Indenture upon the faith
	thereof.
	Texas Capital Bancshares, Inc./Indenture
	29
 
	 
	     
	Section 6.8.
	Eligibility of Trustee
	.
	The Trustee hereunder shall at all times be a
	corporation organized and doing business under the laws of the United States of America or any
	state or territory thereof or of the District of Columbia or a corporation or other Person
	authorized under such laws to exercise corporate trust powers, having (or whose obligations under
	this Indenture are guaranteed by an affiliate having) a combined capital and surplus of at least 50
	million U.S. dollars ($50,000,000.00) and subject to supervision or examination by federal, state,
	territorial, or District of Columbia authority. If such corporation publishes reports of condition
	at least annually, pursuant to law or to the requirements of the aforesaid supervising or examining
	authority, then for the purposes of this Section 6.8 the combined capital and surplus of such
	corporation shall be deemed to be its combined capital and surplus as set forth in its most recent
	records of condition so published.
	     The Company may not, nor may any Person directly or indirectly controlling, controlled by, or
	under common control with the Company, serve as Trustee.
	     In case at any time the Trustee shall cease to be eligible in accordance with the provisions
	of this Section 6.8, the Trustee shall resign immediately in the manner and with the effect
	specified in Section 6.9.
	     If the Trustee has or shall acquire any conflicting interest within the meaning of § 310(b)
	of the Trust Indenture Act of 1939, the Trustee shall either eliminate such interest or resign, to
	the extent and in the manner described by this Indenture.
	     
	Section 6.9.
	Resignation or Removal of Trustee
	     (a) The Trustee, or any trustee or trustees hereafter appointed, may at any time resign by
	giving written notice of such resignation to the Company and by mailing notice thereof, at the
	Companys expense, to the holders of the Debentures at their addresses as they shall appear on the
	Debenture Register. Upon receiving such notice of resignation, the Company shall promptly appoint
	a successor trustee or trustees by written instrument, in duplicate, executed by order of its Board
	of Directors, one copy of which instrument shall be delivered to the resigning Trustee and one copy
	to the successor Trustee. If no successor Trustee shall have been so appointed and have accepted
	appointment within 30 days after the mailing of such notice of resignation to the affected
	Securityholders, the resigning Trustee may petition any court of competent jurisdiction for the
	appointment of a successor Trustee, or any Securityholder who has been a bona fide holder of a
	Debenture or Debentures for at least six months may, subject to the provisions of Section 5.9, on
	behalf of himself and all others similarly situated, petition any such court for the appointment of
	a successor Trustee. Such court may thereupon, after such notice, if any, as it may deem proper
	and prescribe, appoint a successor Trustee.
	     (b) In case at any time any of the following shall occur 
	(1) the Trustee shall fail to comply with the provisions of Section 6.8 after
	written request therefor by the Company or by any Securityholder who has been a bona
	fide holder of a Debenture or Debentures for at least 6 months, or
	(2) the Trustee shall cease to be eligible in accordance with the provisions of
	Section 6.8 and shall fail to resign after written request therefor by the Company
	or by any such Securityholder, or
	(3) the Trustee shall become incapable of acting, or shall be adjudged as bankrupt
	or insolvent, or a receiver of the Trustee or of its property shall be appointed, or
	any public officer shall take charge or control of the Trustee or of its property or
	affairs for the purpose of rehabilitation, conservation or liquidation,
	Texas Capital Bancshares, Inc./Indenture
	30
 
	 
	then, in any such case, the Company may remove the Trustee and appoint a successor
	Trustee by written instrument, in duplicate, executed by order of the Board of
	Directors, one copy of which instrument shall be delivered to the Trustee so removed
	and one copy to the successor Trustee, or, subject to the provisions of Section 5.9,
	any Securityholder who has been a bona fide holder of a Debenture or Debentures for
	at least 6 months may, on behalf of himself and all others similarly situated,
	petition any court of competent jurisdiction for the removal of the Trustee and the
	appointment of a successor Trustee. Such court may thereupon, after such notice, if
	any, as it may deem proper and prescribe, remove the Trustee and appoint successor
	Trustee.
	     (c) Upon prior written notice to the Company and the Trustee, the holders of a majority in
	aggregate principal amount of the Debentures at the time outstanding may at any time remove the
	Trustee and nominate a successor Trustee, which shall be deemed appointed as successor Trustee
	unless within 10 Business Days after such nomination the Company objects thereto, in which case, or
	in the case of a failure by such holders to nominate a successor Trustee, the Trustee so removed or
	any Securityholder, upon the terms and conditions and otherwise as in subsection (a) of this
	Section 6.9 provided, may petition any court of competent jurisdiction for an appointment of a
	successor.
	     (d) Any resignation or removal of the Trustee and appointment of a successor Trustee pursuant
	to any of the provisions of this Section shall become effective upon acceptance of appointment by
	the successor Trustee as provided in Section 6.10.
	     
	Section 6.10.
	Acceptance by Successor Trustee
	.
	Any successor Trustee appointed as
	provided in Section 6.9 shall execute, acknowledge and deliver to the Company and to its
	predecessor Trustee an instrument accepting such appointment hereunder, and thereupon the
	resignation or removal of the retiring Trustee shall become effective and such successor Trustee,
	without any further act, deed or conveyance, shall become vested with all the rights, powers,
	duties and obligations with respect to the Debentures of its predecessor hereunder, with like
	effect as if originally named as Trustee herein; but, nevertheless, on the written request of the
	Company or of the successor Trustee, the Trustee ceasing to act shall, upon payment of any amounts
	then due it pursuant to the provisions of Section 6.6, execute and deliver an instrument
	transferring to such successor Trustee all the rights and powers of the Trustee so ceasing to act
	and shall duly assign, transfer and deliver to such successor Trustee all property and money held
	by such retiring Trustee thereunder. Upon request of any such successor Trustee, the Company shall
	execute any and all instruments in writing for more fully and certainly vesting in and confirming
	to such successor Trustee all such rights
	and powers. Any Trustee ceasing to act shall, nevertheless, retain a lien upon all property
	or funds held or collected by such Trustee to secure any amounts then due it pursuant to the
	provisions of Section 6.6.
	     If a successor Trustee is appointed, the Company, the retiring Trustee and the successor
	Trustee shall execute and deliver an indenture supplemental hereto which shall contain such
	provisions as shall be deemed necessary or desirable to confirm that all the rights, powers, trusts
	and duties of the retiring Trustee with respect to the Debentures as to which the predecessor
	Trustee is not retiring shall continue to be vested in the predecessor Trustee, and shall add to or
	change any of the provisions of this Indenture as shall be necessary to provide for or facilitate
	the administration of the Trust hereunder by more than one Trustee, it being understood that
	nothing herein or in such supplemental indenture shall constitute such Trustees co-trustees of the
	same trust and that each such Trustee shall be Trustee of a trust or trusts hereunder separate and
	apart from any trust or trusts hereunder administered by any other such Trustee.
	     No successor Trustee shall accept appointment as provided in this Section unless at the time
	of such acceptance such successor Trustee shall be eligible under the provisions of Section 6.8.
	Texas Capital Bancshares, Inc./Indenture
	31
 
	 
	     In no event shall a retiring Trustee be liable for the acts or omissions of any successor
	Trustee hereunder.
	     Upon acceptance of appointment by a successor Trustee as provided in this Section 6.10, the
	Company shall mail notice of the succession of such Trustee hereunder to the holders of Debentures
	at their addresses as they shall appear on the Debenture Register. If the Company fails to mail
	such notice within 10 Business Days after the acceptance of appointment by the successor Trustee,
	the successor Trustee shall cause such notice to be mailed at the expense of the Company.
	     
	Section 6.11.
	Succession by Merger, etc
	.
	Any corporation into which the Trustee may
	be merged or converted or with which it may be consolidated, or any corporation resulting from any
	merger, conversion or consolidation to which the Trustee shall be a party, or any corporation
	succeeding to all or substantially all of the corporate trust business of the Trustee, shall be the
	successor of the Trustee hereunder without the execution or filing of any paper or any further act
	on the part of any of the parties hereto;
	provided
	such corporation shall be otherwise
	eligible and qualified under this Article.
	     In case at the time such successor to the Trustee shall succeed to the trusts created by this
	Indenture any of the Debentures shall have been authenticated but not delivered, any such successor
	to the Trustee may adopt the certificate of authentication of any predecessor Trustee, and deliver
	such Debentures so authenticated; and in case at that time any of the Debentures shall not have
	been authenticated, any successor to the Trustee may authenticate such Debentures either in the
	name of any predecessor hereunder or in the name of the successor Trustee; and in all such cases
	such certificates shall have the full force which it is anywhere in the Debentures or in this
	Indenture provided that the certificate of the Trustee shall have;
	provided
	,
	however
	, that the right to adopt the certificate of authentication of any predecessor
	Trustee or authenticate Debentures in the name of any predecessor Trustee shall apply only to its
	successor or successors by merger, conversion or consolidation.
	     
	Section 6.12.
	Authenticating Agents
	.
	There may be one or more Authenticating Agents
	appointed by the Trustee upon the request of the Company with power to act on its behalf and
	subject to its direction in the authentication and delivery of Debentures issued upon exchange or
	registration of transfer thereof as fully to all intents and purposes as though any such
	Authenticating Agent had been expressly authorized to authenticate and deliver Debentures;
	provided
	,
	however
	, that the Trustee shall have no liability to the Company for any
	acts or
	omissions of the Authenticating Agent with respect to the authentication and delivery of
	Debentures. Any such Authenticating Agent shall at all times be a corporation organized and doing
	business under the laws of the United States or of any state or territory thereof or of the
	District of Columbia authorized under such laws to act as Authenticating Agent, having a combined
	capital and surplus of at least $50,000,000.00 and being subject to supervision or examination by
	federal, state, territorial or District of Columbia authority. If such corporation publishes
	reports of condition at least annually pursuant to law or the requirements of such authority, then
	for the purposes of this Section 6.12 the combined capital and surplus of such corporation shall be
	deemed to be its combined capital and surplus as set forth in its most recent report of condition
	so published. If at any time an Authenticating Agent shall cease to be eligible in accordance with
	the provisions of this Section, it shall resign immediately in the manner and with the effect
	herein specified in this Section.
	     Any corporation into which any Authenticating Agent may be merged or converted or with which
	it may be consolidated, or any corporation resulting from any merger, consolidation or conversion
	to which any Authenticating Agent shall be a party, or any corporation succeeding to all or
	substantially all of the corporate trust business of any Authenticating Agent, shall be the
	successor of such Authenticating Agent hereunder, if such successor corporation is otherwise
	eligible under this Section 6.12 without the execution or filing of any paper or any further act on
	the part of the parties hereto or such Authenticating Agent.
	Texas Capital Bancshares, Inc./Indenture
	32
 
	 
	     Any Authenticating Agent may at any time resign by giving written notice of resignation to the
	Trustee and to the Company. The Trustee may at any time terminate the agency of any Authenticating
	Agent with respect to the Debentures by giving written notice of termination to such Authenticating
	Agent and to the Company. Upon receiving such a notice of resignation or upon such a termination,
	or in case at any time any Authenticating Agent shall cease to be eligible under this Section 6.12,
	the Trustee may, and upon the request of the Company shall, promptly appoint a successor
	Authenticating Agent eligible under this Section 6.12, shall give written notice of such
	appointment to the Company and shall mail notice of such appointment to all holders of Debentures
	as the names and addresses of such holders appear on the Debenture Register. Any successor
	Authenticating Agent upon acceptance of its appointment hereunder shall become vested with all
	rights, powers, duties and responsibilities with respect to the Debentures of its predecessor
	hereunder, with like effect as if originally named as Authenticating Agent herein.
	     The Company agrees to pay to any Authenticating Agent from time to time reasonable
	compensation for its services. Any Authenticating Agent shall have no responsibility or liability
	for any action taken by it as such in accordance with the directions of the Trustee.
	ARTICLE VII.
	CONCERNING THE SECURITYHOLDERS
	     
	Section 7.1.
	Action by Securityholders
	.
	Whenever in this Indenture it is provided
	that the holders of a specified percentage in aggregate principal amount of the Debentures may take
	any action (including the making of any demand or request, the giving of any notice, consent or
	waiver or the taking of any other action) the fact that at the time of taking any such action the
	holders of such specified percentage have joined therein may be evidenced (a) by any instrument or
	any number of instruments of similar tenor executed by such Securityholders in person or by agent
	or proxy appointed in writing, or (b) by the record of such holders of Debentures voting in favor
	thereof at any meeting of such Securityholders duly called and held in accordance with the
	provisions of Article VIII, or (c) by a combination of such instrument or instruments and any such
	record of such a meeting of such Securityholders or (d) by any other method the Trustee deems
	satisfactory.
	     If the Company shall solicit from the Securityholders any request, demand, authorization,
	direction, notice, consent, waiver or other action or revocation of the same, the Company may, at
	its option, as evidenced by an Officers Certificate, fix in advance a record date for such
	Debentures for the determination of Securityholders entitled to give such request, demand,
	authorization, direction, notice, consent, waiver or other action or revocation of the same, but
	the Company shall have no obligation to do so. If such a record date is fixed, such request,
	demand, authorization, direction, notice, consent, waiver or other action or revocation of the same
	may be given before or after the record date, but only the Securityholders of record at the close
	of business on the record date shall be deemed to be Securityholders for the purposes of
	determining whether Securityholders of the requisite proportion of outstanding Debentures have
	authorized or agreed or consented to such request, demand, authorization, direction, notice,
	consent, waiver or other action or revocation of the same, and for that purpose the outstanding
	Debentures shall be computed as of the record date;
	provided
	,
	however
	, that no such
	authorization, agreement or consent by such Securityholders on the record date shall be deemed
	effective unless it shall become effective pursuant to the provisions of this Indenture not later
	than 6 months after the record date.
	     
	Section 7.2.
	Proof of Execution by Securityholders
	.
	Subject to the provisions of
	Section 6.1, 6.2 and 8.5, proof of the execution of any instrument by a Securityholder or his agent
	or proxy shall be sufficient if made in accordance with such reasonable rules and regulations as
	may be prescribed by the Trustee or in such manner as shall be satisfactory to the Trustee. The
	ownership of Debentures shall be proved by the Debenture Register or by a certificate of the
	Debenture registrar. The
	Texas Capital Bancshares, Inc./Indenture
	33
 
	 
	Trustee may require such additional proof of any matter referred to in
	this Section as it shall deem necessary.
	     The record of any Securityholders meeting shall be proved in the manner provided in Section
	8.6.
	     
	Section 7.3.
	Who Are Deemed Absolute Owners
	.
	Prior to due presentment for
	registration of transfer of any Debenture, the Company, the Trustee, any Authenticating Agent, any
	paying agent, any transfer agent and any Debenture registrar may deem the Person in whose name such
	Debenture shall be registered upon the Debenture Register to be, and may treat him as, the absolute
	owner of such Debenture (whether or not such Debenture shall be overdue) for the purpose of
	receiving payment of or on account of the principal of, premium, if any, and interest on such
	Debenture and for all other purposes; and neither the Company nor the Trustee nor any
	Authenticating Agent nor any paying agent nor any transfer agent nor any Debenture registrar shall
	be affected by any notice to the contrary. All such payments so made to any holder for the time
	being or upon his order shall be valid, and, to the extent of the sum or sums so paid, effectual to
	satisfy and discharge the liability for moneys payable upon any such Debenture.
	     
	Section 7.4.
	Debentures Owned by Company Deemed Not Outstanding
	.
	In determining
	whether the holders of the requisite aggregate principal amount of Debentures have concurred in any
	direction, consent or waiver under this Indenture, Debentures which are owned by the Company or any
	other obligor on the Debentures or by any Person directly or indirectly controlling or controlled
	by or under direct or indirect common control with the Company or any other obligor on the
	Debentures shall be disregarded and deemed not to be outstanding for the purpose of any such
	determination;
	provided
	,
	however
	, that for the purposes of determining whether the
	Trustee shall be protected in relying on any such direction, consent or waiver, only Debentures
	which a Responsible Officer of the Trustee actually knows are so owned shall be so disregarded.
	Debentures so owned which have been pledged in good faith may be regarded as outstanding for the
	purposes of this Section 7.4 if the pledgee shall establish to the satisfaction of the Trustee the
	pledgees right to vote such Debentures and
	that the pledgee is not the Company or any such other obligor or Person directly or indirectly
	controlling or controlled by or under direct or indirect common control with the Company or any
	such other obligor. In the case of a dispute as to such right, any decision by the Trustee taken
	upon the advice of counsel shall be full protection to the Trustee.
	     
	Section 7.5.
	Revocation of Consents; Future Holders Bound
	.
	At any time prior to (but
	not after) the evidencing to the Trustee, as provided in Section 7.1, of the taking of any action
	by the holders of the percentage in aggregate principal amount of the Debentures specified in this
	Indenture in connection with such action, any holder (in cases where no record date has been set
	pursuant to Section 7.1) or any holder as of an applicable record date (in cases where a record
	date has been set pursuant to Section 7.1) of a Debenture (or any Debenture issued in whole or in
	part in exchange or substitution therefor) the serial number of which is shown by the evidence to
	be included in the Debentures the holders of which have consented to such action may, by filing
	written notice with the Trustee at the Principal Office of the Trustee and upon proof of holding as
	provided in Section 7.2, revoke such action so far as concerns such Debenture (or so far as
	concerns the principal amount represented by any exchanged or substituted Debenture). Except as
	aforesaid any such action taken by the holder of any Debenture shall be conclusive and binding upon
	such holder and upon all future holders and owners of such Debenture, and of any Debenture issued
	in exchange or substitution therefor or on registration of transfer thereof, irrespective of
	whether or not any notation in regard thereto is made upon such Debenture or any Debenture issued
	in exchange or substitution therefor.
	Texas Capital Bancshares, Inc./Indenture
	34
 
	 
	ARTICLE VIII.
	SECURITYHOLDERS MEETINGS
	     
	Section 8.1.
	Purposes of Meetings
	.
	A meeting of Securityholders may be called at any
	time and from time to time pursuant to the provisions of this Article VIII for any of the following
	purposes:
	     (a) to give any notice to the Company or to the Trustee, or to give any directions to the
	Trustee, or to consent to the waiving of any default hereunder and its consequences, or to take any
	other action authorized to be taken by Securityholders pursuant to any of the provisions of Article
	V;
	     (b) to remove the Trustee and nominate a successor trustee pursuant to the provisions of
	Article VI;
	     (c) to consent to the execution of an indenture or indentures supplemental hereto pursuant to
	the provisions of Section 9.2; or
	     (d) to take any other action authorized to be taken by or on behalf of the holders of any
	specified aggregate principal amount of such Debentures under any other provision of this Indenture
	or under applicable law.
	     
	Section 8.2.
	Call of Meetings by Trustee
	.
	The Trustee may at any time call a meeting
	of Securityholders to take any action specified in Section 8.1, to be held at such time and at such
	place as the Trustee shall determine. Notice of every meeting of the Securityholders, setting
	forth the time and the place of such meeting and in general terms the action proposed to be taken
	at such meeting, shall be mailed to holders of Debentures affected at their addresses as they shall
	appear on the Debentures Register and, if the Company is not a holder of
	Debentures, to the Company. Such notice shall be mailed not less than 20 nor more than 180
	days prior to the date fixed for the meeting.
	     
	Section 8.3.
	Call of Meetings by Company or Securityholders
	.
	In case at any time the
	Company pursuant to a Board Resolution, or the holders of at least 10% in aggregate principal
	amount of the Debentures, as the case may be, then outstanding, shall have requested the Trustee to
	call a meeting of Securityholders, by written request setting forth in reasonable detail the action
	proposed to be taken at the meeting, and the Trustee shall not have mailed the notice of such
	meeting within 20 days after receipt of such request, then the Company or such Securityholders may
	determine the time and the place for such meeting and may call such meeting to take any action
	authorized in Section 8.1, by mailing notice thereof as provided in Section 8.2.
	     
	Section 8.4.
	Qualifications for Voting
	.
	To be entitled to vote at any meeting of
	Securityholders a Person shall (a) be a holder of one or more Debentures with respect to which the
	meeting is being held or (b) a Person appointed by an instrument in writing as proxy by a holder of
	one or more such Debentures. The only Persons who shall be entitled to be present or to speak at
	any meeting of Securityholders shall be the Persons entitled to vote at such meeting and their
	counsel and any representatives of the Trustee and its counsel and any representatives of the
	Company and its counsel.
	     
	Section 8.5.
	Regulations
	.
	Notwithstanding any other provisions of this Indenture, the
	Trustee may make such reasonable regulations as it may deem advisable for any meeting of
	Securityholders, in regard to proof of the holding of Debentures and of the appointment of proxies,
	and in regard to the appointment and duties of inspectors of votes, the submission and examination
	of proxies, certificates and other evidence of the right to vote, and such other matters concerning
	the conduct of the meeting as it shall think fit.
	Texas Capital Bancshares, Inc./Indenture
	35
 
	 
	     The Trustee shall, by an instrument in writing, appoint a temporary chairman of the meeting,
	unless the meeting shall have been called by the Company or by Securityholders as provided in
	Section 8.3, in which case the Company or the Securityholders calling the meeting, as the case may
	be, shall in like manner appoint a temporary chairman. A permanent chairman and a permanent
	secretary of the meeting shall be elected by majority vote of the meeting.
	     Subject to the provisions of Section 7.4, at any meeting each holder of Debentures with
	respect to which such meeting is being held or proxy therefor shall be entitled to one vote for
	each $1,000.00 principal amount of Debentures held or represented by him;
	provided
	,
	however
	, that no vote shall be cast or counted at any meeting in respect of any Debenture
	challenged as not outstanding and ruled by the chairman of the meeting to be not outstanding. The
	chairman of the meeting shall have no right to vote other than by virtue of Debentures held by him
	or instruments in writing as aforesaid duly designating him as the Person to vote on behalf of
	other Securityholders. Any meeting of Securityholders duly called pursuant to the provisions of
	Section 8.2 or 8.3 may be adjourned from time to time by a majority of those present, whether or
	not constituting a quorum, and the meeting may be held as so adjourned without further notice.
	     
	Section 8.6.
	Voting
	.
	The vote upon any resolution submitted to any meeting of holders
	of Debentures with respect to which such meeting is being held shall be by written ballots on which
	shall be subscribed the signatures of such holders or of their representatives by proxy and the
	serial number or numbers of the Debentures
	held or represented by them. The permanent chairman of the meeting shall appoint two
	inspectors of votes who shall count all votes cast at the meeting for or against any resolution and
	who shall make and file with the secretary of the meeting their verified written reports in
	triplicate of all votes cast at the meeting. A record in duplicate of the proceedings of each
	meeting of Securityholders shall be prepared by the secretary of the meeting and there shall be
	attached to said record the original reports of the inspectors of votes on any vote by ballot taken
	thereat and affidavits by one or more Persons having knowledge of the facts setting forth a copy of
	the notice of the meeting and showing that said notice was mailed as provided in Section 8.2. The
	record shall show the serial numbers of the Debentures voting in favor of or against any
	resolution. The record shall be signed and verified by the affidavits of the permanent chairman
	and secretary of the meeting and one of the duplicates shall be delivered to the Company and the
	other to the Trustee to be preserved by the Trustee, the latter to have attached thereto the
	ballots voted at the meeting.
	     Any record so signed and verified shall be conclusive evidence of the matters therein stated.
	     
	Section 8.7.
	Quorum; Actions
	.
	The Persons entitled to vote a majority in principal
	amount of the Debentures then outstanding shall constitute a quorum for a meeting of
	Securityholders;
	provided
	,
	however
	, that if any action is to be taken at such
	meeting with respect to a consent, waiver, request, demand, notice, authorization, direction or
	other action which may be given by the holders of not less than a specified percentage in principal
	amount of the Debentures then outstanding, the Persons holding or representing such specified
	percentage in principal amount of the Debentures then outstanding will constitute a quorum. In the
	absence of a quorum within 30 minutes of the time appointed for any such meeting, the meeting
	shall, if convened at the request of Securityholders, be dissolved. In any other case the meeting
	may be adjourned for a period of not less than 10 days as determined by the permanent chairman of
	the meeting prior to the adjournment of such meeting. In the absence of a quorum at any such
	adjourned meeting, such adjourned meeting may be further adjourned for a period of not less than 10
	days as determined by the permanent chairman of the meeting prior to the adjournment of such
	adjourned meeting. Notice of the reconvening of any adjourned meeting shall be given as provided
	in Section 8.2, except that such notice need be given only once not less than 5 days prior to the
	date on which the meeting is scheduled to be reconvened. Notice of the reconvening of an adjourned
	meeting
	Texas Capital Bancshares, Inc./Indenture
	36
 
	 
	shall state expressly the percentage, as provided above, of the principal amount of the
	Debentures then outstanding which shall constitute a quorum.
	     Except as limited by the provisos in the first paragraph of Section 9.2, any resolution
	presented to a meeting or adjourned meeting duly reconvened at which a quorum is present as
	aforesaid may be adopted by the affirmative vote of the holders of a majority in principal amount
	of the Debentures then outstanding;
	provided
	,
	however
	, that, except as limited by
	the provisos in the first paragraph of Section 9.2, any resolution with respect to any consent,
	waiver, request, demand, notice, authorization, direction or other action which this Indenture
	expressly provides may be given by the holders of not less than a specified percentage in principal
	amount of the Debentures then outstanding may be adopted at a meeting or an adjourned meeting duly
	reconvened and at which a quorum is present as aforesaid only by the affirmative vote of the
	holders of a not less than such specified percentage in principal amount of the Debentures then
	outstanding.
	     Any resolution passed or decision taken at any meeting of holders of Debentures duly held in
	accordance with this Section shall be binding on all the Securityholders, whether or not present or
	represented at the meeting.
	ARTICLE IX.
	SUPPLEMENTAL INDENTURES
	     
	Section 9.1.
	Supplemental Indentures without Consent of Securityholders
	.
	The Company,
	when authorized by a Board Resolution, and the Trustee may from time to time and at any time enter
	into an indenture or indentures supplemental hereto, without the consent of the Securityholders,
	for one or more of the following purposes:
	     (a) to evidence the succession of another Person to the Company, or successive successions,
	and the assumption by the successor Person of the covenants, agreements and obligations of the
	Company, pursuant to Article XI hereof;
	     (b) to add to the covenants of the Company such further covenants, restrictions or conditions
	for the protection of the holders of Debentures as the Board of Directors shall consider to be for
	the protection of the holders of such Debentures, and to make the occurrence, or the occurrence and
	continuance, of a default in any of such additional covenants, restrictions or conditions a default
	or an Event of Default permitting the enforcement of all or any of the several remedies provided in
	this Indenture as herein set forth;
	provided
	,
	however
	, that in respect of any such
	additional covenant restriction or condition such supplemental indenture may provide for a
	particular period of grace after default (which period may be shorter or longer than that allowed
	in the case of other defaults) or may provide for an immediate enforcement upon such default or may
	limit the remedies available to the Trustee upon such default;
	     (c) to cure any ambiguity or to correct or supplement any provision contained herein or in any
	supplemental indenture which may be defective or inconsistent with any other provision contained
	herein or in any supplemental indenture, or to make such other provisions in regard to matters or
	questions arising under this Indenture;
	provided
	that any such action shall not materially
	adversely affect the interests of the holders of the Debentures;
	     (d) to add to, delete from, or revise the terms of Debentures, including, without limitation,
	any terms relating to the issuance, exchange, registration or transfer of Debentures, including to
	provide for transfer procedures and restrictions substantially similar to those applicable to the
	Capital Securities as required by Section 2.5 (for purposes of assuring that no registration of
	Debentures is required under the Securities Act);
	provided
	,
	however
	, that any such
	action shall not adversely affect the interests of the
	Texas Capital Bancshares, Inc./Indenture
	37
 
	 
	holders of the Debentures then outstanding
	(it being understood, for purposes of this proviso, that transfer restrictions on Debentures
	substantially similar to those that were applicable to Capital Securities shall not be deemed to
	materially adversely affect the holders of the Debentures);
	     (e) to evidence and provide for the acceptance of appointment hereunder by a successor Trustee
	with respect to the Debentures and to add to or change any of the provisions of this Indenture as
	shall be necessary to provide for or facilitate the administration of the trusts hereunder by more
	than one Trustee;
	     (f) to make any change (other than as elsewhere provided in this paragraph) that does not
	adversely affect the rights of any Securityholder in any material respect; or
	     (g) to provide for the issuance of and establish the form and terms and conditions of the
	Debentures, to establish the form of any certifications required to be furnished pursuant to the
	terms of this Indenture or the Debentures, or to add to the rights of the holders of Debentures.
	     The Trustee is hereby authorized to join with the Company in the execution of any such
	supplemental indenture, to make any further appropriate agreements and stipulations which may be
	therein contained and to accept the conveyance, transfer and assignment of any property thereunder,
	but the Trustee shall not be obligated to, but may in its discretion, enter into any such
	supplemental indenture which affects the Trustees own rights, duties or immunities under this
	Indenture or otherwise.
	     Any supplemental indenture authorized by the provisions of this Section 9.1 may be executed by
	the Company and the Trustee without the consent of the holders of any of the Debentures at the time
	outstanding, notwithstanding any of the provisions of Section 9.2.
	     
	Section 9.2.
	Supplemental Indentures with Consent of Securityholders
	.
	With the
	consent (evidenced as provided in Section 7.1) of the holders of not less than a majority in
	aggregate principal amount of the Debentures at the time outstanding affected by such supplemental
	indenture (voting as a class), the Company, when authorized by a Board Resolution, and the Trustee
	may from time to time and at any time enter into an indenture or indentures supplemental hereto for
	the purpose of adding any provisions to or changing in any manner or eliminating any of the
	provisions of this Indenture or of any supplemental indenture or of modifying in any manner the
	rights of the holders of the Debentures;
	provided
	,
	however
	, that no such
	supplemental indenture shall without the consent of the holders of each Debenture then outstanding
	and affected thereby (i) change the fixed maturity of any Debenture, or reduce the principal amount
	thereof or any premium thereon, or reduce the rate or extend the time of payment of interest
	thereon, or reduce any amount payable on redemption thereof or make the principal thereof or any
	interest or premium thereon payable in any coin or currency other than that provided in the
	Debentures, or impair or affect the right of any Securityholder to institute suit for payment
	thereof or impair the right of repayment, if any, at the option of the holder, or (ii) reduce the
	aforesaid percentage of Debentures the holders of which are required to consent to any such
	supplemental indenture;
	provided
	further
	,
	however
	, that if the Debentures
	are held by a trust or a trustee of such trust, such supplemental indenture shall not be effective
	until the holders of a majority in Liquidation Amount of Trust Securities shall have consented to
	such supplemental indenture;
	provided
	further
	,
	however
	, that if the consent
	of the Securityholder of each outstanding Debenture is required, such supplemental indenture shall
	not be effective until each holder of the Trust Securities shall have consented to such
	supplemental indenture.
	     Upon the request of the Company accompanied by a Board Resolution authorizing the execution of
	any such supplemental indenture, and upon the filing with the Trustee of evidence of the consent of
	Securityholders as aforesaid, the Trustee shall join with the Company in the execution of such
	supplemental indenture unless such supplemental indenture affects the Trustees own rights, duties
	or
	Texas Capital Bancshares, Inc./Indenture
	38
 
	 
	immunities under this Indenture or otherwise, in which case the Trustee may in its discretion,
	but shall not be obligated to, enter into such supplemental indenture.
	     Promptly after the execution by the Company and the Trustee of any supplemental indenture
	pursuant to the provisions of this Section, the Trustee shall transmit by mail, first class postage
	prepaid, a notice, prepared by the Company, setting forth in general terms the substance of such
	supplemental indenture, to the Securityholders as their names and addresses appear upon the
	Debenture Register. Any failure of the Trustee to mail such notice, or any defect therein, shall
	not, however, in any way impair or affect the validity of any such supplemental indenture.
	     It shall not be necessary for the consent of the Securityholders under this Section 9.2 to
	approve the particular form of any proposed supplemental indenture, but it shall be sufficient if
	such consent shall approve the substance thereof.
	     
	Section 9.3.
	Effect of Supplemental Indentures
	.
	Upon the execution of any supplemental indenture pursuant to the provisions of this Article
	IX, this Indenture shall be and be deemed to be modified and amended in accordance therewith and
	the respective rights, limitations of rights, obligations, duties and immunities under this
	Indenture of the Trustee, the Company and the holders of Debentures shall thereafter be determined,
	exercised and enforced hereunder subject in all respects to such modifications and amendments and
	all the terms and conditions of any such supplemental indenture shall be and be deemed to be part
	of the terms and conditions of this Indenture for any and all purposes.
	     
	Section 9.4.
	Notation on Debentures
	.
	Debentures authenticated and delivered after the
	execution of any supplemental indenture pursuant to the provisions of this Article IX may bear a
	notation as to any matter provided for in such supplemental indenture. If the Company or the
	Trustee shall so determine, new Debentures so modified as to conform, in the opinion of the Board
	of Directors of the Company, to any modification of this Indenture contained in any such
	supplemental indenture may be prepared and executed by the Company, authenticated by the Trustee or
	the Authenticating Agent and delivered in exchange for the Debentures then outstanding.
	     
	Section 9.5.
	Evidence of Compliance of Supplemental Indenture to be Furnished to
	Trustee
	.
	The Trustee, subject to the provisions of Sections 6.1 and 6.2, shall, in addition to
	the documents required by Section 14.6, receive an Officers Certificate and an Opinion of Counsel
	as conclusive evidence that any supplemental indenture executed pursuant hereto complies with the
	requirements of this Article IX. The Trustee shall receive an Opinion of Counsel as conclusive
	evidence that any supplemental indenture executed pursuant to this Article IX is authorized or
	permitted by, and conforms to, the terms of this Article IX and that it is proper for the Trustee
	under the provisions of this Article IX to join in the execution thereof.
	ARTICLE X.
	REDEMPTION OF SECURITIES
	     
	Section 10.1.
	Optional Redemption
	.
	The Company shall have the right (subject to the
	receipt by the Company of prior approval (i) if the Company is a bank holding company, from the
	Federal Reserve, if then required under applicable capital guidelines or policies of the Federal
	Reserve or (ii) if the Company is a savings and loan holding company, from the OTS, if then
	required under applicable capital guidelines or policies of the OTS) to redeem the Debentures, in
	whole or in part, but in all cases in a principal amount with integral multiples of $1,000.00, on
	any Interest Payment Date on or after the Interest Payment Date in June 2011 (the 
	Redemption
	Date
	), at the Redemption Price.
	     
	Section 10.2.
	Special Event Redemption
	.
	If a Special Event shall occur and be
	continuing, the Company shall have the right (subject to the receipt by the Company of prior
	approval (i) if the
	Texas Capital Bancshares, Inc./Indenture
	39
 
	 
	Company is a bank holding company, from the Federal Reserve, if then required
	under applicable capital guidelines or policies of the Federal Reserve or (ii) if the Company is a
	savings and loan holding company, from the OTS, if then required under applicable capital
	guidelines or policies of the OTS) to redeem the Debentures in whole, but not in part, at any
	Interest Payment Date, within 120 days following the occurrence of such Special Event (the
	
	Special Redemption Date
	) at the Special Redemption Price.
	     
	Section 10.3.
	Notice of Redemption; Selection of Debentures
	.
	In case the Company
	shall desire to exercise the right to redeem all, or, as the case may be, any part of the
	Debentures, it shall cause to be mailed a notice of such redemption at least 30 and not more than
	60 days prior to the Redemption Date or the Special Redemption Date to the holders of Debentures so
	to be redeemed as a whole or in part at their last addresses as the same appear on the Debenture
	Register. Such mailing shall be by first class mail. The notice if mailed in the manner herein
	provided shall be conclusively presumed to have been duly given, whether or not the holder receives
	such notice. In any case, failure to give such notice by mail or any defect in the notice to the
	holder of any Debenture designated for redemption as a whole or in part shall not affect the
	validity of the proceedings for the redemption of any other Debenture.
	     Each such notice of redemption shall specify the CUSIP number, if any, of the Debentures to be
	redeemed, the Redemption Date or the Special Redemption Date, as applicable, the Redemption Price
	or the Special Redemption Price, as applicable, at which Debentures are to be redeemed, the place
	or places of payment, that payment will be made upon presentation and surrender of such Debentures,
	that interest accrued to the date fixed for redemption will be paid as specified in said notice,
	and that on and after said date interest thereon or on the portions thereof to be redeemed will
	cease to accrue. If less than all the Debentures are to be redeemed the notice of redemption shall
	specify the numbers of the Debentures to be redeemed. In case the Debentures are to be redeemed in
	part only, the notice of redemption shall state the portion of the principal amount thereof to be
	redeemed and shall state that on and after the date fixed for redemption, upon surrender of such
	Debenture, a new Debenture or Debentures in principal amount equal to the unredeemed portion
	thereof will be issued.
	     Prior to 10:00 a.m. New York City time on the Redemption Date or Special Redemption Date, as
	applicable, the Company will deposit with the Trustee or with one or more paying agents an amount
	of money sufficient to redeem on the Redemption Date or the Special Redemption Date, as applicable,
	all the Debentures so called for redemption at the appropriate Redemption Price or Special
	Redemption Price.
	     If all, or less than all, the Debentures are to be redeemed, the Company will give the Trustee
	notice not less than 45 nor more than 60 days, respectively, prior to the Redemption Date or
	Special Redemption Date, as applicable, as to the aggregate principal amount of Debentures to be
	redeemed and the Trustee shall select, in such manner as in its sole discretion it shall deem
	appropriate and fair, the Debentures or portions thereof (in integral multiples of $1,000.00) to be
	redeemed.
	     
	Section 10.4.
	Payment of Debentures Called for Redemption
	.
	If notice of redemption
	has been given as provided in Section 10.3, the Debentures or portions of Debentures with respect
	to which such notice has been given shall become due and payable on the Redemption Date or Special
	Redemption Date, as applicable, and at the place or places stated in such notice at the applicable
	Redemption Price or Special Redemption Price and on and after said date (unless the Company shall
	default in the payment of such Debentures at the Redemption Price or Special Redemption Price, as
	applicable) interest on the Debentures or portions of Debentures so called for redemption shall
	cease to accrue. On presentation and surrender of such Debentures at a place of payment specified
	in said notice, such Debentures or the specified portions thereof shall be paid and redeemed by the
	Company at the applicable Redemption Price or Special Redemption Price.
	Texas Capital Bancshares, Inc./Indenture
	40
 
	 
	     Upon presentation of any Debenture redeemed in part only, the Company shall execute and the
	Trustee shall authenticate and make available for delivery to the holder thereof, at the expense of
	the Company, a new Debenture or Debentures of authorized denominations, in principal amount equal
	to the unredeemed portion of the Debenture so presented.
	ARTICLE XI.
	CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE
	     
	Section 11.1.
	Company May Consolidate, etc., on Certain Terms
	.
	Nothing contained in
	this Indenture or in the Debentures shall prevent any consolidation or merger of the Company with
	or into any other Person (whether or not affiliated with the Company) or successive consolidations
	or mergers in which the Company or its successor or successors shall be a party or parties, or
	shall prevent any sale, conveyance, transfer or other disposition of the property of the Company or
	its successor or successors as an entirety, or substantially as an entirety, to any other Person
	(whether or not affiliated with the Company, or its successor or successors) authorized to acquire
	and operate the same;
	provided
	,
	however
	, that the Company hereby covenants and
	agrees that, upon any such consolidation, merger (where the Company is not the surviving
	corporation), sale, conveyance, transfer or other disposition, the due and punctual payment of the
	principal of (and premium, if any) and interest on all of the Debentures in accordance with their
	terms, according to their tenor, and the due and punctual performance and observance of all the
	covenants and conditions of this Indenture to be kept or performed by the Company, shall be
	expressly assumed by supplemental indenture satisfactory in form to the Trustee executed and
	delivered to the Trustee by the entity formed by such consolidation, or into which the Company
	shall have been merged, or by the entity which shall have acquired such property.
	     
	Section 11.2.
	Successor Entity to be Substituted
	.
	In case of any such consolidation,
	merger, sale, conveyance, transfer or other disposition and upon the assumption by the successor
	entity, by supplemental indenture, executed and delivered to the Trustee and satisfactory in form
	to the Trustee, of the due and punctual payment of the principal of and premium, if any, and
	interest on all of the Debentures and the due and punctual performance and observance of all of the
	covenants and conditions of this Indenture to be performed or observed by the Company, such
	successor entity shall succeed to and be substituted for the Company, with the same effect as if it
	had been named herein as the Company, and thereupon the predecessor entity shall be relieved of any
	further liability or obligation hereunder or upon the Debentures. Such successor entity thereupon
	may cause to be signed, and may issue in its own name, any or all of the Debentures issuable
	hereunder which theretofore shall not have been signed by the Company and delivered to the Trustee
	or the Authenticating Agent; and, upon the order of such successor entity instead of the Company
	and subject to all the terms, conditions and limitations in this Indenture prescribed, the Trustee
	or the Authenticating Agent shall authenticate and deliver any Debentures which previously shall
	have been signed and delivered by the officers of the Company, to the Trustee or the Authenticating
	Agent for authentication, and any Debentures which such successor entity thereafter shall cause to
	be signed and delivered to the Trustee or the Authenticating Agent for that purpose. All the
	Debentures so issued shall in all respects have the same legal rank and benefit under this
	Indenture as the Debentures theretofore or thereafter issued in accordance with the terms of this
	Indenture as though all of such Debentures had been issued at the date of the execution hereof.
	     
	Section 11.3.
	Opinion of Counsel to be Given to Trustee
	.
	The Trustee, subject to the
	provisions of Sections 6.1 and 6.2, shall receive, in addition to the Opinion of Counsel required
	by Section 9.5, an Opinion of Counsel as conclusive evidence that any consolidation, merger, sale,
	conveyance, transfer or other disposition, and any assumption, permitted or required by the terms
	of this Article XI complies with the provisions of this Article XI.
	Texas Capital Bancshares, Inc./Indenture
	41
 
	 
	ARTICLE XII.
	SATISFACTION AND DISCHARGE OF INDENTURE
	     
	Section 12.1.
	Discharge of Indenture
	.
	When
|  | (a) |  | the Company shall deliver to the Trustee for cancellation all Debentures
	theretofore authenticated (other than any Debentures which shall have been destroyed,
	lost or stolen and which shall have been replaced or paid as provided in Section 2.6)
	and not theretofore canceled, or | 
|  | 
|  | (b) |  | all the Debentures not theretofore canceled or delivered to the Trustee for
	cancellation shall have become due and payable, or are by their terms to become due and
	payable within 1 year or are to be called for redemption within 1 year under
	arrangements satisfactory to the Trustee for the giving of notice of redemption, and
	the Company shall deposit with the Trustee, in trust, funds, which shall be immediately
	due and payable, sufficient to pay at maturity or upon redemption all of the Debentures
	(other than any Debentures which shall have been destroyed, lost or stolen and which
	shall have been replaced or paid as provided in Section 2.6) not theretofore canceled
	or delivered to the Trustee for cancellation, including principal and premium, if any,
	and interest due or to become due to such date of maturity or redemption date, as the
	case may be, but excluding, however, the amount of any moneys for the payment of
	principal of, and premium, if any, or interest on the Debentures (1) theretofore repaid
	to the Company in accordance with the provisions of Section 12.4, or (2) paid to any
	state or to the District of Columbia pursuant to its unclaimed property or similar
	laws, | 
 
	and if in the case of either clause (a) or clause (b) the Company shall also pay or cause to be
	paid all other sums payable hereunder by the Company, then this Indenture shall cease to be of
	further effect except for the provisions of Sections 2.5, 2.6, 2.8, 3.1, 3.2, 3.4, 6.6, 6.8, 6.9
	and 12.4 hereof shall survive until such Debentures shall mature and be paid. Thereafter, Sections
	6.6 and 12.4 shall survive, and the Trustee, on demand of the Company accompanied by an Officers
	Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided
	for relating to the satisfaction and discharge of this Indenture have been complied with, and at
	the cost and expense of the Company, shall execute proper instruments acknowledging satisfaction of
	and discharging this Indenture. The Company agrees to reimburse the Trustee for any costs or
	expenses thereafter reasonably and properly incurred by the Trustee in connection with this
	Indenture or the Debentures.
	     
	Section 12.2.
	Deposited Moneys to be Held in Trust by Trustee
	.
	Subject to the
	provisions of Section 12.4, all moneys deposited with the Trustee pursuant to Section 12.1 shall be
	held in trust in a non-interest bearing account and applied by it to the payment, either directly
	or through any paying agent (including the Company if acting as its own paying agent), to the
	holders of the particular Debentures for the payment of which such moneys have been deposited with
	the Trustee, of all sums due and to become due thereon for principal, and premium, if any, and
	interest.
	     
	Section 12.3.
	Paying Agent to Repay Moneys Held
	.
	Upon the satisfaction and discharge
	of this Indenture all moneys then held by any paying agent of the Debentures (other than the
	Trustee) shall, upon demand of the Company, be repaid to it or paid to the Trustee, and thereupon
	such paying agent shall be released from all further liability with respect to such moneys.
	     
	Section 12.4.
	Return of Unclaimed Moneys
	.
	Any moneys deposited with or paid to the
	Trustee or any paying agent for payment of the principal of, and premium, if any, or interest on
	Debentures and not applied but remaining unclaimed by the holders of Debentures for 2 years after
	the date upon which the principal of, and premium, if any, or interest on such Debentures, as the
	case may be,
	Texas Capital Bancshares, Inc./Indenture
	42
 
	 
	shall have become due and payable, shall, subject to applicable escheatment laws, be
	repaid to the Company by the Trustee or such paying agent on written demand; and the holder of any
	of the Debentures shall thereafter look only to the Company for any payment which such holder may
	be entitled to collect, and all liability of the Trustee or such paying agent with respect to such
	moneys shall thereupon cease.
	ARTICLE XIII.
	IMMUNITY OF INCORPORATORS, STOCKHOLDERS,
	OFFICERS AND DIRECTORS
	     
	Section 13.1.
	Indenture and Debentures Solely Corporate Obligations
	.
	No recourse for
	the payment of the principal of or premium, if any, or interest on any Debenture, or for any claim
	based thereon or otherwise in respect thereof, and no recourse under or upon any obligation,
	covenant or agreement of the Company in this Indenture or in any supplemental indenture, or in any
	such Debenture, or because of the creation of any indebtedness represented thereby, shall be had
	against any incorporator, stockholder, employee, officer or director, as such, past, present or
	future, of the Company or of any successor Person of the Company, either directly or through the
	Company or any successor Person of the Company, whether by virtue of any constitution, statute or
	rule of law, or by the enforcement of any assessment or penalty or otherwise, it being expressly
	understood that all such liability is hereby expressly waived and released as a condition of, and
	as a consideration for, the execution of this Indenture and the issue of the Debentures.
	ARTICLE XIV.
	MISCELLANEOUS PROVISIONS
	     
	Section 14.1.
	Successors
	.
	All the covenants, stipulations, promises and agreements of
	the Company in this Indenture shall bind its successors and assigns whether so expressed or not.
	     
	Section 14.2.
	Official Acts by Successor Entity
	.
	Any act or proceeding by any
	provision of this Indenture authorized or required to be done or performed by any board, committee
	or officer of the Company shall and may be done and performed with like force and effect by the
	like board, committee, officer or other authorized Person of any entity that shall at the time be
	the lawful successor of the Company.
	     
	Section 14.3.
	Surrender of Company Powers
	.
	The Company by instrument in writing
	executed by authority of at least 2/3 (two-thirds) of its Board of Directors and delivered to the
	Trustee may surrender any of the powers reserved to the Company and thereupon such power so
	surrendered shall terminate both as to the Company, and as to any permitted successor.
	     
	Section 14.4.
	Addresses for Notices, etc
	.
	Any notice, consent, direction, request, authorization, waiver or demand which by any
	provision of this Indenture is required or permitted to be given, made, furnished or served by the
	Trustee or by the Securityholders on or to the Company may be given or served in writing by being
	deposited postage prepaid by registered or certified mail in a post office letter box addressed
	(until another address is filed by the Company, with the Trustee for the purpose) to the Company,
	2100 McKinney Avenue, Suite 1250, Dallas, Texas 75201, Attention: Mark R. Frears. Any notice,
	consent, direction, request, authorization, waiver or demand by any Securityholder or the Company
	to or upon the Trustee shall be deemed to have been sufficiently given or made, for all purposes,
	if given or made in writing at the office of the Trustee, addressed to the Trustee, Rodney Square
	North, 1100 North Market Street, Wilmington, Delaware 19890-1600, Attention: Corporate Trust
	Administration. Any notice, consent, direction, request, authorization, waiver or demand on or to
	any Securityholder shall be deemed to have been sufficiently given or made, for all purposes, if
	given or made in writing at the address set forth in the Debenture Register.
	Texas Capital Bancshares, Inc./Indenture
	43
 
	 
	     
	Section 14.5.
	Governing Law
	.
	This Indenture and each Debenture shall be deemed to be
	a contract made under the law of the State of New York, and for all purposes shall be governed by
	and construed in accordance with the law of said State, without regard to conflict of laws
	principles thereof.
	     
	Section 14.6.
	Evidence of Compliance with Conditions Precedent
	.
	Upon any application
	or demand by the Company to the Trustee to take any action under any of the provisions of this
	Indenture, the Company shall furnish to the Trustee an Officers Certificate stating that in the
	opinion of the signers all conditions precedent, if any, provided for in this Indenture relating to
	the proposed action have been complied with and an Opinion of Counsel stating that, in the opinion
	of such counsel, all such conditions precedent have been complied with.
	     Each certificate or opinion provided for in this Indenture and delivered to the Trustee with
	respect to compliance with a condition or covenant provided for in this Indenture shall include (1)
	a statement that the person making such certificate or opinion has read such covenant or condition;
	(2) a brief statement as to the nature and scope of the examination or investigation upon which the
	statements or opinions contained in such certificate or opinion are based; (3) a statement that, in
	the opinion of such person, he has made such examination or investigation as is necessary to enable
	him to express an informed opinion as to whether or not such covenant or condition has been
	complied with; and (4) a statement as to whether or not in the opinion of such person, such
	condition or covenant has been complied with.
	     
	Section 14.7.
	Table of Contents, Headings, etc
	.
	The table of contents and the titles
	and headings of the articles and sections of this Indenture have been inserted for convenience of
	reference only, are not to be considered a part hereof, and shall in no way modify or restrict any
	of the terms or provisions hereof.
	     
	Section 14.8.
	Execution in Counterparts
	.
	This Indenture may be executed in any number
	of counterparts, each of which shall be an original, but such counterparts shall together
	constitute but one and the same instrument.
	     
	Section 14.9.
	Separability
	.
	In case any one or more of the provisions contained in this Indenture or in the Debentures
	shall for any reason be held to be invalid, illegal or unenforceable in any respect, such
	invalidity, illegality or unenforceability shall not affect any other provisions of this Indenture
	or of such Debentures, but this Indenture and such Debentures shall be construed as if such invalid
	or illegal or unenforceable provision had never been contained herein or therein.
	     
	Section 14.10.
	Assignment
	.
	The Company will have the right at all times to assign any
	of its rights or obligations under this Indenture to a direct or indirect wholly owned Subsidiary
	of the Company, provided that, in the event of any such assignment, the Company will remain liable
	for all such obligations. Subject to the foregoing, this Indenture is binding upon and inures to
	the benefit of the parties hereto and their respective successors and assigns. This Indenture may
	not otherwise be assigned by the parties hereto.
	     
	Section 14.11.
	Acknowledgment of Rights
	.
	The Company agrees that, with respect to any
	Debentures held by the Trust or the Institutional Trustee of the Trust, if the Institutional
	Trustee of the Trust fails to enforce its rights under this Indenture as the holder of Debentures
	held as the assets of such Trust after the holders of a majority in Liquidation Amount of the
	Capital Securities of such Trust have so directed such Institutional Trustee, a holder of record of
	such Capital Securities may, to the fullest extent permitted by law, institute legal proceedings
	directly against the Company to enforce such Institutional Trustees rights under this Indenture
	without first instituting any legal proceedings against such trustee or any other Person.
	Notwithstanding the foregoing, if an Event of Default has occurred and is continuing and such event
	is attributable to the failure of the Company to pay interest (or premium, if any) or
	Texas Capital Bancshares, Inc./Indenture
	44
 
	 
	principal on
	the Debentures on the date such interest (or premium, if any) or principal is otherwise payable (or
	in the case of redemption, on the redemption date), the Company agrees that a holder of record of
	Capital Securities of the Trust may directly institute a proceeding against the Company for
	enforcement of payment to such holder directly of the principal of (or premium, if any) or interest
	on the Debentures having an aggregate principal amount equal to the aggregate Liquidation Amount of
	the Capital Securities of such holder on or after the respective due date specified in the
	Debentures.
	ARTICLE XV.
	SUBORDINATION OF DEBENTURES
	     
	Section 15.1.
	Agreement to Subordinate
	.
	The Company covenants and agrees, and each
	holder of Debentures by such Securityholders acceptance thereof likewise covenants and agrees,
	that all Debentures shall be issued subject to the provisions of this Article XV; and each holder
	of a Debenture, whether upon original issue or upon transfer or assignment thereof, accepts and
	agrees to be bound by such provisions.
	     The payment by the Company of the principal of, and premium, if any, and interest on all
	Debentures shall, to the extent and in the manner hereinafter set forth, be subordinated and junior
	in right of payment to the prior payment in full of all Senior Indebtedness of the Company, whether
	outstanding at the date of this Indenture or thereafter incurred;
	provided
	,
	however
	, that the Debentures shall rank
	pari passu
	in right of payment with the Companys:
	(1) Floating Rate Junior Subordinated Debentures due November 19, 2032 issued pursuant to an
	Indenture dated as of November 19, 2002 by and between the Company and State Street Bank and Trust
	Company of Connecticut, National Association; (2) Floating Rate Junior Subordinated Debt Securities
	due April 24, 2033 issued pursuant to an Indenture dated as of April 10, 2003 by and between the
	Company and Wilmington Trust Company; and (3) Fixed/Floating
	Rate Junior Subordinated Debentures due December 15, 2035 issued pursuant to an Indenture
	dated as of October 6, 2005 by and between the Company and Wilmington Trust Company.
	     No provision of this Article XV shall prevent the occurrence of any default or Event of
	Default hereunder.
	     
	Section 15.2.
	Default on Senior Indebtedness
	.
	In the event and during the
	continuation of any default by the Company in the payment of principal, premium, interest or any
	other payment due on any Senior Indebtedness of the Company following any grace period, or in the
	event that the maturity of any Senior Indebtedness of the Company has been accelerated because of a
	default and such acceleration has not been rescinded or canceled and such Senior Indebtedness has
	not been paid in full, then, in either case, no payment shall be made by the Company with respect
	to the principal (including redemption) of, or premium, if any, or interest on the Debentures.
	     In the event that, notwithstanding the foregoing, any payment shall be received by the Trustee
	when such payment is prohibited by the preceding paragraph of this Section 15.2, such payment
	shall, subject to Section 15.7, be held in trust for the benefit of, and shall be paid over or
	delivered to, the holders of Senior Indebtedness or their respective representatives, or to the
	trustee or trustees under any indenture pursuant to which any of such Senior Indebtedness may have
	been issued, as their respective interests may appear, but only to the extent that the holders of
	the Senior Indebtedness (or their representative or representatives or a trustee) notify the
	Trustee in writing within 90 days of such payment of the amounts then due and owing on the Senior
	Indebtedness and only the amounts specified in such notice to the Trustee shall be paid to the
	holders of Senior Indebtedness.
	     
	Section 15.3.
	Liquidation, Dissolution, Bankruptcy
	.
	Upon any payment by the Company
	or distribution of assets of the Company of any kind or character, whether in cash, property or
	securities, to creditors upon any dissolution or winding-up or liquidation or reorganization of the
	Company, whether
	Texas Capital Bancshares, Inc./Indenture
	45
 
	 
	voluntary or involuntary or in bankruptcy, insolvency, receivership or other
	proceedings, all amounts due upon all Senior Indebtedness of the Company shall first be paid in
	full, or payment thereof provided for in money in accordance with its terms, before any payment is
	made by the Company, on account of the principal (and premium, if any) or interest on the
	Debentures. Upon any such dissolution or winding-up or liquidation or reorganization, any payment
	by the Company, or distribution of assets of the Company of any kind or character, whether in cash,
	property or securities, to which the Securityholders or the Trustee would be entitled to receive
	from the Company, except for the provisions of this Article XV, shall be paid by the Company, or by
	any receiver, trustee in bankruptcy, liquidating trustee, agent or other Person making such payment
	or distribution, or by the Securityholders or by the Trustee under this Indenture if received by
	them or it, directly to the holders of Senior Indebtedness (
	pro rata
	to such holders on the basis
	of the respective amounts of Senior Indebtedness held by such holders, as calculated by the
	Company) or their representative or representatives, or to the trustee or trustees under any
	indenture pursuant to which any instruments evidencing such Senior Indebtedness may have been
	issued, as their respective interests may appear, to the extent necessary to pay such Senior
	Indebtedness in full, in money or moneys worth, after giving effect to any concurrent payment or
	distribution to or for the holders of such Senior Indebtedness, before any payment or distribution
	is made to the Securityholders or to the Trustee.
	     In the event that, notwithstanding the foregoing, any payment or distribution of assets of the
	Company of any kind or character, whether in cash, property or securities, prohibited by the
	foregoing, shall be received by the Trustee before all Senior Indebtedness is paid in full, or
	provision is made for such payment in money in accordance with its terms, such payment or
	distribution shall be held in trust
	for the benefit of and shall be paid over or delivered to the holders of such Senior
	Indebtedness or their representative or representatives, or to the trustee or trustees under any
	indenture pursuant to which any instruments evidencing such Senior Indebtedness may have been
	issued, as their respective interests may appear, as calculated by the Company, for application to
	the payment of all Senior Indebtedness, remaining unpaid to the extent necessary to pay such Senior
	Indebtedness in full in money in accordance with its terms, after giving effect to any concurrent
	payment or distribution to or for the benefit of the holders of such Senior Indebtedness.
	     For purposes of this Article XV, the words cash, property or securities shall not be deemed
	to include shares of stock of the Company as reorganized or readjusted, or securities of the
	Company or any other corporation provided for by a plan of reorganization or readjustment, the
	payment of which is subordinated at least to the extent provided in this Article XV with respect to
	the Debentures to the payment of all Senior Indebtedness, that may at the time be outstanding,
	provided that (i) such Senior Indebtedness is assumed by the new corporation, if any, resulting
	from any such reorganization or readjustment, and (ii) the rights of the holders of such Senior
	Indebtedness are not, without the consent of such holders, altered by such reorganization or
	readjustment. The consolidation of the Company with, or the merger of the Company into, another
	corporation or the liquidation or dissolution of the Company following the conveyance or transfer
	of its property as an entirety, or substantially as an entirety, to another corporation upon the
	terms and conditions provided for in Article XI of this Indenture shall not be deemed a
	dissolution, winding-up, liquidation or reorganization for the purposes of this Section if such
	other corporation shall, as a part of such consolidation, merger, conveyance or transfer, comply
	with the conditions stated in Article XI of this Indenture. Nothing in Section 15.2 or in this
	Section shall apply to claims of, or payments to, the Trustee under or pursuant to Section 6.6 of
	this Indenture.
	     
	Section 15.4.
	Subrogation
	.
	Subject to the payment in full of all Senior Indebtedness,
	the Securityholders shall be subrogated to the rights of the holders of such Senior Indebtedness to
	receive payments or distributions of cash, property or securities of the Company, applicable to
	such Senior Indebtedness until the principal of (and premium, if any) and interest on the
	Debentures shall be paid in full. For the purposes of such subrogation, no payments or
	distributions to the holders of such Senior
	Texas Capital Bancshares, Inc./Indenture
	46
 
	 
	Indebtedness of any cash, property or securities to
	which the Securityholders or the Trustee would be entitled except for the provisions of this
	Article XV, and no payment over pursuant to the provisions of this Article XV to or for the benefit
	of the holders of such Senior Indebtedness by Securityholders or the Trustee, shall, as between the
	Company, its creditors other than holders of Senior Indebtedness of the Company, and the holders of
	the Debentures be deemed to be a payment or distribution by the Company to or on account of such
	Senior Indebtedness. It is understood that the provisions of this Article XV are and are intended
	solely for the purposes of defining the relative rights of the holders of the Securities, on the
	one hand, and the holders of such Senior Indebtedness, on the other hand.
	     Nothing contained in this Article XV or elsewhere in this Indenture or in the Debentures is
	intended to or shall impair, as between the Company, its creditors other than the holders of Senior
	Indebtedness, and the holders of the Debentures, the obligation of the Company, which is absolute
	and unconditional, to pay to the holders of the Debentures the principal of (and premium, if any)
	and interest on the Debentures as and when the same shall become due and payable in accordance with
	their terms, or is intended to or shall affect the relative rights of the holders of the Debentures
	and creditors of the Company, other than the holders of Senior Indebtedness, nor shall anything
	herein or therein prevent the Trustee or the holder of any Debenture from exercising all remedies
	otherwise permitted by applicable law upon default under this Indenture, subject to the rights, if
	any, under this Article XV of the holders of such Senior Indebtedness in respect of cash, property
	or securities of the Company, received upon the exercise of any such remedy.
	     Upon any payment or distribution of assets of the Company referred to in this Article XV, the
	Trustee, subject to the provisions of Article VI of this Indenture, and the Securityholders shall
	be entitled to conclusively rely upon any order or decree made by any court of competent
	jurisdiction in which such dissolution, winding-up, liquidation or reorganization proceedings are
	pending, or a certificate of the receiver, trustee in bankruptcy, liquidation trustee, agent or
	other Person making such payment or distribution, delivered to the Trustee or to the
	Securityholders, for the purposes of ascertaining the Persons entitled to participate in such
	distribution, the holders of Senior Indebtedness and other indebtedness of the Company, the amount
	thereof or payable thereon, the amount or amounts paid or distributed thereon and all other facts
	pertinent thereto or to this Article XV.
	     
	Section 15.5.
	Trustee to Effectuate Subordination
	.
	Each Securityholder by such
	Securityholders acceptance thereof authorizes and directs the Trustee on such Securityholders
	behalf to take such action as may be necessary or appropriate to effectuate the subordination
	provided in this Article XV and appoints the Trustee such Securityholders attorney-in-fact for any
	and all such purposes.
	     
	Section 15.6.
	Notice by the Company
	.
	The Company shall give prompt written notice to
	a Responsible Officer of the Trustee at the Principal Office of the Trustee of any fact known to
	the Company that would prohibit the making of any payment of monies to or by the Trustee in respect
	of the Debentures pursuant to the provisions of this Article XV. Notwithstanding the provisions of
	this Article XV or any other provision of this Indenture, the Trustee shall not be charged with
	knowledge of the existence of any facts that would prohibit the making of any payment of monies to
	or by the Trustee in respect of the Debentures pursuant to the provisions of this Article XV,
	unless and until a Responsible Officer of the Trustee at the Principal Office of the Trustee shall
	have received written notice thereof from the Company or a holder or holders of Senior Indebtedness
	or from any trustee therefor; and before the receipt of any such written notice, the Trustee,
	subject to the provisions of Article VI of this Indenture, shall be entitled in all respects to
	assume that no such facts exist;
	provided
	,
	however
	, that if the Trustee shall not
	have received the notice provided for in this Section at least 2 Business Days prior to the date
	upon which by the terms hereof any money may become payable for any purpose (including, without
	limitation, the payment of the principal of (or premium, if any) or interest on any Debenture),
	then, anything herein contained to the contrary notwithstanding, the Trustee shall have full power
	and authority
	Texas Capital Bancshares, Inc./Indenture
	47
 
	 
	to receive such money and to apply the same to the purposes for which they were
	received, and shall not be affected by any notice to the contrary that may be received by it within
	2 Business Days prior to such date.
	     The Trustee, subject to the provisions of Article VI of this Indenture, shall be entitled to
	conclusively rely on the delivery to it of a written notice by a Person representing himself to be
	a holder of Senior Indebtedness (or a trustee or representative on behalf of such holder), to
	establish that such notice has been given by a holder of such Senior Indebtedness or a trustee or
	representative on behalf of any such holder or holders. In the event that the Trustee determines
	in good faith that further evidence is required with respect to the right of any Person as a holder
	of such Senior Indebtedness to participate in any payment or distribution pursuant to this Article
	XV, the Trustee may request such Person to furnish evidence to the reasonable satisfaction of the
	Trustee as to the amount of such Senior Indebtedness held by such Person, the extent to which such
	Person is entitled to participate in such payment or distribution and any other facts pertinent to
	the rights of such Person under this Article XV, and, if such evidence is not furnished, the
	Trustee may defer any payment to such Person pending judicial determination as to the right of such
	Person to receive such payment.
	     
	Section 15.7.
	Rights of the Trustee; Holders of Senior Indebtedness
	.
	The Trustee in its individual capacity shall be entitled to all the rights set forth in this
	Article XV in respect of any Senior Indebtedness at any time held by it, to the same extent as any
	other holder of Senior Indebtedness, and nothing in this Indenture shall deprive the Trustee of any
	of its rights as such holder.
	     With respect to the holders of Senior Indebtedness, the Trustee undertakes to perform or to
	observe only such of its covenants and obligations as are specifically set forth in this Article
	XV, and no implied covenants or obligations with respect to the holders of such Senior Indebtedness
	shall be read into this Indenture against the Trustee. The Trustee shall not be deemed to owe any
	fiduciary duty to the holders of such Senior Indebtedness and, subject to the provisions of Article
	VI of this Indenture, the Trustee shall not be liable to any holder of such Senior Indebtedness if
	it shall pay over or deliver to Securityholders, the Company or any other Person money or assets to
	which any holder of such Senior Indebtedness shall be entitled by virtue of this Article XV or
	otherwise.
	     Nothing in this Article XV shall apply to claims of, or payments to, the Trustee under or
	pursuant to Section 6.6.
	     
	Section 15.8.
	Subordination May Not Be Impaired
	.
	No right of any present or future
	holder of any Senior Indebtedness to enforce subordination as herein provided shall at any time in
	any way be prejudiced or impaired by any act or failure to act on the part of the Company, or by
	any act or failure to act, in good faith, by any such holder, or by any noncompliance by the
	Company, with the terms, provisions and covenants of this Indenture, regardless of any knowledge
	thereof that any such holder may have or otherwise be charged with.
	     Without in any way limiting the generality of the foregoing paragraph, the holders of Senior
	Indebtedness may, at any time and from time to time, without the consent of or notice to the
	Trustee or the Securityholders, without incurring responsibility to the Securityholders and without
	impairing or releasing the subordination provided in this Article XV or the obligations hereunder
	of the holders of the Debentures to the holders of such Senior Indebtedness, do any one or more of
	the following: (i) change the manner, place or terms of payment or extend the time of payment of,
	or renew or alter, such Senior Indebtedness, or otherwise amend or supplement in any manner such
	Senior Indebtedness or any instrument evidencing the same or any agreement under which such Senior
	Indebtedness is outstanding; (ii) sell, exchange, release or otherwise deal with any property
	pledged, mortgaged or otherwise securing such Senior Indebtedness; (iii) release any Person liable
	in any manner for the collection of such Senior
	Texas Capital Bancshares, Inc./Indenture
	48
 
	 
	Indebtedness; and (iv) exercise or refrain from
	exercising any rights against the Company, and any other Person.
	Signatures appear on the following page
	Texas Capital Bancshares, Inc./Indenture
	49
 
	 
	     IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed by their
	respective officers thereunto duly authorized, as of the day and year first above written.
|  |  |  |  |  | 
|  |  | TEXAS CAPITAL BANCSHARES, INC. | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  | By |  |  | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  |  |  | Name: | 
| 
	 
 |  |  |  | Title: | 
| 
	 
 |  |  |  |  | 
|  |  | WILMINGTON TRUST COMPANY, as Trustee | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  | By |  |  | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  |  |  | Name: | 
| 
	 
 |  |  |  | Title: | 
 
	Texas Capital Bancshares, Inc./Indenture
	50
 
	 
	EXHIBIT A
	FORM OF FLOATING RATE JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURE
	[FORM OF FACE OF SECURITY]
	     THIS SECURITY IS NOT A SAVINGS ACCOUNT OR DEPOSIT AND IT IS NOT INSURED BY THE UNITED STATES
	OR ANY AGENCY OR FUND OF THE UNITED STATES, INCLUDING THE FEDERAL DEPOSIT INSURANCE CORPORATION.
	     THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
	SECURITIES ACT), ANY STATE SECURITIES LAWS OR ANY OTHER APPLICABLE SECURITIES LAW. NEITHER THIS
	SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED,
	PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH
	TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT
	AND ANY APPLICABLE STATE SECURITIES LAWS. THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF
	AGREES TO OFFER, SELL OR OTHERWISE TRANSFER THIS SECURITY ONLY (A) TO THE COMPANY, (B) PURSUANT TO
	A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, (C) TO A PERSON
	WHOM THE SELLER REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER IN A TRANSACTION MEETING THE
	REQUIREMENTS OF RULE 144A SO LONG AS THIS SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO RULE 144A IN
	ACCORDANCE WITH RULE 144A, (D) TO A NON-U.S. PERSON IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH
	RULE 903 OR RULE 904 (AS APPLICABLE) OF REGULATION S UNDER THE SECURITIES ACT, (E) TO AN
	INSTITUTIONAL ACCREDITED INVESTOR WITHIN THE MEANING OF SUBPARAGRAPH (A) OF RULE 501 UNDER THE
	SECURITIES ACT THAT IS ACQUIRING THIS SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN
	INSTITUTIONAL ACCREDITED INVESTOR, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER OR
	SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, OR (F) PURSUANT TO
	ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO
	THE COMPANYS RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER TO REQUIRE THE DELIVERY OF AN OPINION
	OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO IT IN ACCORDANCE WITH THE
	INDENTURE, A COPY OF WHICH MAY BE OBTAINED FROM THE COMPANY.
	     THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF ALSO AGREES, REPRESENTS AND WARRANTS THAT
	IT IS NOT AN EMPLOYEE BENEFIT, INDIVIDUAL RETIREMENT ACCOUNT OR OTHER PLAN OR ARRANGEMENT SUBJECT
	TO TITLE I OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (ERISA), OR
	SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE CODE) (EACH A PLAN), OR AN
	ENTITY WHOSE UNDERLYING ASSETS INCLUDE PLAN ASSETS BY REASON OF ANY PLANS INVESTMENT IN THE
	ENTITY, AND NO PERSON INVESTING PLAN ASSETS OF ANY PLAN MAY ACQUIRE OR HOLD THE SECURITIES OR ANY
	INTEREST THEREIN, UNLESS SUCH PURCHASER OR HOLDER IS ELIGIBLE FOR EXEMPTIVE RELIEF AVAILABLE UNDER
	U.S. DEPARTMENT OF LABOR PROHIBITED TRANSACTION CLASS EXEMPTION 96-23, 95-60, 91-38, 90-1 OR 84-14
	OR ANOTHER APPLICABLE EXEMPTION OR ITS PURCHASE AND HOLDING OF THIS SECURITY IS NOT PROHIBITED BY
	Texas Capital Bancshares, Inc./Indenture
	A-1
 
	 
	SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE WITH RESPECT TO SUCH PURCHASE OR HOLDING.
	ANY PURCHASER OR HOLDER OF THE SECURITIES OR ANY INTEREST THEREIN WILL BE DEEMED TO HAVE
	REPRESENTED BY ITS PURCHASE AND HOLDING THEREOF THAT EITHER (i) IT IS NOT AN EMPLOYEE BENEFIT PLAN
	WITHIN THE MEANING OF SECTION 3(3) OF ERISA, OR A PLAN TO WHICH SECTION 4975 OF THE CODE IS
	APPLICABLE, A TRUSTEE OR OTHER PERSON ACTING ON BEHALF OF AN EMPLOYEE BENEFIT PLAN OR PLAN, OR ANY
	OTHER PERSON OR ENTITY USING THE ASSETS OF ANY EMPLOYEE BENEFIT PLAN OR PLAN TO FINANCE SUCH
	PURCHASE, OR (ii) SUCH PURCHASE WILL NOT RESULT IN A PROHIBITED TRANSACTION UNDER SECTION 406 OF
	ERISA OR SECTION 4975 OF THE CODE FOR WHICH THERE IS NO APPLICABLE STATUTORY OR ADMINISTRATIVE
	EXEMPTION.
	     THIS SECURITY WILL BE ISSUED AND MAY BE TRANSFERRED ONLY IN BLOCKS HAVING AN AGGREGATE
	PRINCIPAL AMOUNT OF NOT LESS THAN $100,000.00 AND MULTIPLES OF $1,000.00 IN EXCESS THEREOF. ANY
	ATTEMPTED TRANSFER OF THIS SECURITY IN A BLOCK HAVING AN AGGREGATE PRINCIPAL AMOUNT OF LESS THAN
	$100,000.00 SHALL BE DEEMED TO BE VOID AND OF NO LEGAL EFFECT WHATSOEVER.
	     THE HOLDER OF THIS SECURITY AGREES THAT IT WILL COMPLY WITH THE FOREGOING RESTRICTIONS.
	     IN CONNECTION WITH ANY TRANSFER, THE HOLDER WILL DELIVER TO THE REGISTRAR AND TRANSFER AGENT
	SUCH CERTIFICATES AND OTHER INFORMATION AS MAY BE REQUIRED BY THE INDENTURE TO CONFIRM THAT THE
	TRANSFER COMPLIES WITH THE FOREGOING RESTRICTIONS.
	Floating Rate Junior Subordinated Deferrable Interest Debenture
	of
	Texas Capital Bancshares, Inc.
	April 28, 2006
	     Texas Capital Bancshares, Inc., a Delaware corporation (the Company which term includes any
	successor Person under the Indenture hereinafter referred to), for value received promises to pay
	to Wilmington Trust Company, not in its individual capacity but solely as Institutional Trustee for
	Texas Capital Statutory Trust IV (the Holder) or registered assigns, the principal sum of
	twenty-five million seven hundred seventy-four thousand dollars ($25,774,000.00) on June 15, 2036,
	and to pay interest on said principal sum from April 28, 2006, or from the most recent Interest
	Payment Date (as defined below) to which interest has been paid or duly provided for, quarterly
	(subject to deferral as set forth herein) in arrears on March 15, June 15, September 15 and
	December 15 of each year or if such day is not a Business Day, then the next succeeding Business
	Day (each such date, an Interest Payment Date) (it being understood that interest accrues for any
	such non-Business Day), commencing on the Interest Payment Date in June 2006, at an annual rate
	equal to 6.74875% beginning on (and including) the date of original issuance and ending on (but
	excluding) the Interest Payment Date in June 2006 and at an annual rate for each successive period
	beginning on (and including) the Interest Payment Date in June 2006, and each succeeding Interest
	Payment Date, and ending on (but excluding) the next succeeding Interest Payment Date (each a
	Distribution Period), equal to 3-Month LIBOR, determined as described below, plus 1.60% (the
	Coupon Rate), applied to the principal amount hereof, until the principal hereof is paid or duly
	provided for or made available for payment, and on any overdue principal and (without duplication
	and to the extent that payment of such interest is enforceable under applicable law) on any
	Texas Capital Bancshares, Inc./Indenture
	A-2
 
	 
	overdue installment of interest (including Additional Interest) at the Interest Rate in effect
	for each applicable period, compounded quarterly, from the dates such amounts are due until they
	are paid or made available for payment. The amount of interest payable for any period will be
	computed on the basis of the actual number of days in the Distribution Period concerned divided by
	360. The interest installment so payable, and punctually paid or duly provided for, on any
	Interest Payment Date will, as provided in the Indenture, be paid to the Person in whose name this
	Debenture (or one or more Predecessor Securities) is registered at the close of business on the
	regular record date for such interest installment, which shall be fifteen Business Days prior to
	the day on which the relevant Interest Payment Date occurs. Any such interest installment not so
	punctually paid or duly provided for shall forthwith cease to be payable to the Holder on such
	regular record date and may be paid to the Person in whose name this Debenture (or one or more
	Predecessor Securities) is registered at the close of business on a special record date.
	     3-Month LIBOR as used herein, means the London interbank offered interest rate for
	three-month U.S. dollar deposits determined by the Trustee in the following order of priority: (i)
	the rate (expressed as a percentage per annum) for U.S. dollar deposits having a three-month
	maturity that appears on Telerate Page 3750 as of 11:00 a.m. (London time) on the related
	Determination Date (Telerate Page 3750 means the display designated as Page 3750 on the
	Moneyline Telerate Service or such other page as may replace Page 3750 on that service or such
	other service or services as may be nominated by the British Bankers Association as the
	information vendor for the purpose of displaying London interbank offered rates for U.S. dollar
	deposits); (ii) if such rate cannot be identified on the related Determination Date, the Trustee
	will request the principal London offices of four leading banks in the London interbank market to
	provide such banks offered quotations (expressed as percentages per annum) to prime banks in the
	London interbank market for U.S. dollar deposits having a three-month maturity as of 11:00 a.m.
	(London time) on such Determination Date. If at least two quotations are provided, 3-Month LIBOR
	will be the arithmetic mean of such quotations; (iii) if fewer than two such quotations are
	provided as requested in clause (ii) above, the Trustee will request four major New York City banks
	to provide such banks offered quotations (expressed as percentages per annum) to leading European
	banks for loans in U.S. dollars as of 11:00 a.m. (London time) on such Determination Date. If at
	least two such quotations are provided, 3-Month LIBOR will be the arithmetic mean of such
	quotations; and (iv) if fewer than two such quotations are provided as requested in clause (iii)
	above, 3-Month LIBOR will be a 3-Month LIBOR determined with respect to the Distribution Period
	immediately preceding such current Distribution Period. If the rate for U.S. dollar deposits
	having a three-month maturity that initially appears on Telerate Page 3750 as of 11:00 a.m. (London
	time) on the related Determination Date is superseded on the Telerate Page 3750 by a corrected rate
	by 12:00 noon (London time) on such Determination Date, then the corrected rate as so substituted
	on the applicable page will be the applicable 3-Month LIBOR for such Determination Date. As used
	herein, Determination Date means the date that is two London Banking Days (i.e., a business day
	in which dealings in deposits in U.S. dollars are transacted in the London interbank market)
	preceding the commencement of the relevant Distribution Period.
	     The Interest Rate for any Distribution Period will at no time be higher than the maximum rate
	then permitted by New York law as the same may be modified by United States law.
	     All percentages resulting from any calculations on the Debentures will be rounded, if
	necessary, to the nearest one hundred-thousandth of a percentage point, with five one-millionths of
	a percentage point rounded upward (e.g., 9.876545% (or .09876545)
	being rounded to 9.87655% (or .0987655), and all dollar amounts used in or resulting from such calculation will be rounded to the
	nearest cent (with one-half cent being rounded upward)).
	     The principal of and interest on this Debenture shall be payable at the office or agency of
	the Trustee (or other paying agent appointed by the Company) maintained for that purpose in any
	coin or
	Texas Capital Bancshares, Inc./Indenture
	A-3
 
	 
	currency of the United States of America that at the time of payment is legal tender for
	payment of public and private debts;
	provided
	,
	however
	, that payment of interest
	may be made by check mailed to the registered holder at such address as shall appear in the
	Debenture Register if a request for a wire transfer by such holder has not been received by the
	Company or by wire transfer to an account appropriately designated by the holder hereof.
	Notwithstanding the foregoing, so long as the holder of this Debenture is the Institutional
	Trustee, the payment of the principal of and interest on this Debenture will be made in immediately
	available funds at such place and to such account as may be designated by the Trustee.
	     So long as no Acceleration Event of Default has occurred and is continuing, the Company shall
	have the right, from time to time, and without causing an Event of Default, to defer payments of
	interest on the Debentures by extending the interest payment period on the Debentures at any time
	and from time to time during the term of the Debentures, for up to 20 consecutive quarterly periods
	(each such extended interest payment period, an Extension Period), during which Extension Period
	no interest (including Additional Interest) shall be due and payable (except any Additional Sums
	that may be due and payable). No Extension Period may end on a date other than an Interest Payment
	Date. During an Extension Period, interest will continue to accrue on the Debentures, and interest
	on such accrued interest will accrue at an annual rate equal to the Interest Rate in effect for
	such Extension Period, compounded quarterly from the date such interest would have been payable
	were it not for the Extension Period, to the extent permitted by law (such interest referred to
	herein as Additional Interest). At the end of any such Extension Period the Company shall pay
	all interest then accrued and unpaid on the Debentures (together with Additional Interest thereon);
	provided
	,
	however
	, that no Extension Period may extend beyond the Maturity Date;
	provided
	further
	,
	however
	, that during any such Extension Period, the
	Company shall not and shall not permit any Affiliate to engage in any of the activities or
	transactions described on the reverse side hereof and in the Indenture. Prior to the termination
	of any Extension Period, the Company may further extend such period, provided that such period
	together with all such previous and further consecutive extensions thereof shall not exceed 20
	consecutive quarterly periods, or extend beyond the Maturity Date. Upon the termination of any
	Extension Period and upon the payment of all accrued and unpaid interest and Additional Interest,
	the Company may commence a new Extension Period, subject to the foregoing requirements. No
	interest or Additional Interest shall be due and payable during an Extension Period, except at the
	end thereof, but each installment of interest that would otherwise have been due and payable during
	such Extension Period shall bear Additional Interest. The Company must give the Trustee notice of
	its election to begin or extend an Extension Period by the close of business at least 15 Business
	Days prior to the Interest Payment Date with respect to which interest on the Debentures would have
	been payable except for the election to begin or extend such Extension Period.
	     The indebtedness evidenced by this Debenture is, to the extent provided in the Indenture,
	subordinate and junior in right of payment to the prior payment in full of all Senior Indebtedness,
	and this Debenture is issued subject to the provisions of the Indenture with respect thereto. Each
	holder of this Debenture, by accepting the same, (a) agrees to and shall be bound by such
	provisions, (b) authorizes and directs the Trustee on his or her behalf to take such action as may
	be necessary or appropriate to acknowledge or effectuate the subordination so provided and (c)
	appoints the Trustee his or her attorney-in-fact for any and all such purposes. Each holder
	hereof, by his or her acceptance hereof, hereby waives all notice of the acceptance of the
	subordination provisions contained herein and in the Indenture by each holder of Senior
	Indebtedness, whether now outstanding or hereafter incurred, and waives reliance by each such
	holder upon said provisions.
	     This Debenture shall not be entitled to any benefit under the Indenture hereinafter referred
	to, be valid or become obligatory for any purpose until the certificate of authentication hereon
	shall have been signed by or on behalf of the Trustee.
	Texas Capital Bancshares, Inc./Indenture
	A-4
 
	 
	     The provisions of this Debenture are continued on the reverse side hereof and such provisions
	shall for all purposes have the same effect as though fully set forth at this place.
	Texas Capital Bancshares, Inc./Indenture
	A-5
 
	 
	     IN WITNESS WHEREOF, the Company has duly executed this certificate.
|  |  |  |  |  | 
|  |  | TEXAS CAPITAL BANCSHARES, INC. | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  | By |  |  | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  |  |  | Name: | 
| 
	 
 |  |  |  | Title: | 
 
	CERTIFICATE OF AUTHENTICATION
	     This is one of the Debentures referred to in the within-mentioned Indenture.
|  |  |  |  |  | 
|  |  | WILMINGTON TRUST COMPANY, as Trustee | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  | By: |  |  | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  |  |  | Authorized Officer | 
 
	Texas Capital Bancshares, Inc./Indenture
	A-6
 
	 
	[FORM OF REVERSE OF DEBENTURE]
	     This Debenture is one of the floating rate junior subordinated deferrable interest debentures
	of the Company, all issued or to be issued under and pursuant to the Indenture dated as of April
	28, 2006 (the Indenture), duly executed and delivered between the Company and the Trustee, to
	which Indenture reference is hereby made for a description of the rights, limitations of rights,
	obligations, duties and immunities thereunder of the Trustee, the Company and the holders of the
	Debentures. The Debentures are limited in aggregate principal amount as specified in the
	Indenture.
	     Upon the occurrence and continuation of a Special Event prior to the Interest Payment Date in
	June 2011, the Company shall have the right to redeem the Debentures in whole, but not in part, at
	any Interest Payment Date, within 120 days following the occurrence of such Special Event, at the
	Special Redemption Price.
	     In addition, the Company shall have the right to redeem the Debentures, in whole or in part,
	but in all cases in a principal amount with integral multiples of $1,000.00, on any Interest
	Payment Date on or after the Interest Payment Date in June 2011, at the Redemption Price.
	     Prior to 10:00 a.m. New York City time on the Redemption Date or Special Redemption Date, as
	applicable, the Company will deposit with the Trustee or with one or more paying agents an amount
	of money sufficient to redeem on the Redemption Date or the Special Redemption Date, as applicable,
	all the Debentures so called for redemption at the appropriate Redemption Price or Special
	Redemption Price.
	     If all, or less than all, the Debentures are to be redeemed, the Company will give the Trustee
	notice not less than 45 nor more than 60 days, respectively, prior to the Redemption Date or
	Special Redemption Date, as applicable, as to the aggregate principal amount of Debentures to be
	redeemed and the Trustee shall select, in such manner as in its sole discretion it shall deem
	appropriate and fair, the Debentures or portions thereof (in integral multiples of $1,000.00) to be
	redeemed.
	     Notwithstanding the foregoing, any redemption of Debentures by the Company shall be subject to
	the receipt of any and all required regulatory approvals.
	     In case an Acceleration Event of Default shall have occurred and be continuing, upon demand of
	the Trustee, the principal of all of the Debentures shall become due and payable in the manner,
	with the effect and subject to the conditions provided in the Indenture.
	     The Indenture contains provisions permitting the Company and the Trustee, with the consent of
	the holders of not less than a majority in aggregate principal amount of the Debentures at the time
	outstanding, to execute supplemental indentures for the purpose of adding any provisions to or
	changing in any manner or eliminating any of the provisions of this Indenture or of any
	supplemental indenture or of modifying in any manner the rights of the holders of the Debentures;
	provided
	,
	however
	, that no such supplemental indenture shall without the consent of
	the holders of each Debenture then outstanding and affected thereby (i) change the fixed maturity
	of any Debenture, or reduce the principal amount thereof or any premium thereon, or reduce the rate
	or extend the time of payment of interest thereon, or reduce any amount payable on redemption
	thereof or make the principal thereof or any interest or premium thereon payable in any coin or
	currency other than that provided in the Debentures, or impair or affect the right of any
	Securityholder to institute suit for payment thereof or impair the right of repayment, if any, at
	the option of the holder, or (ii) reduce the aforesaid percentage of Debentures the holders of
	which are required to consent to any such supplemental indenture.
	Texas Capital Bancshares, Inc./Indenture
	A-7
 
	 
	     The Indenture also contains provisions permitting the holders of a majority in aggregate
	principal amount of the Debentures at the time outstanding on behalf of the holders of all of the
	Debentures to waive (or modify any previously granted waiver of) any past default or Event of
	Default, and its consequences, except a default (a) in the payment of principal of, premium, if
	any, or interest on any of the Debentures, (b) in respect of covenants or provisions hereof or of
	the Indenture which cannot be modified or amended without the consent of the holder of each
	Debenture affected, or (c) in respect of the covenants contained in Section 3.9 of the Indenture;
	provided
	,
	however
	, that if the Debentures are held by the Trust or a trustee of
	such trust, such waiver or modification to such waiver shall not be effective until the holders of
	a majority in Liquidation Amount of Trust Securities of the Trust shall have consented to such
	waiver or modification to such waiver,
	provided
	,
	further
	, that if the consent of
	the holder of each outstanding Debenture is required, such waiver shall not be effective until each
	holder of the Trust Securities of the Trust shall have consented to such waiver. Upon any such
	waiver, the default covered thereby shall be deemed to be cured for all purposes of the Indenture
	and the Company, the Trustee and the holders of the Debentures shall be restored to their former
	positions and rights hereunder, respectively; but no such waiver shall extend to any subsequent or
	other default or Event of Default or impair any right consequent thereon. Whenever any default or
	Event of Default hereunder shall have been waived as permitted by the Indenture, said default or
	Event of Default shall for all purposes of the Debentures and the Indenture be deemed to have been
	cured and to be not continuing.
	     No reference herein to the Indenture and no provision of this Debenture or of the Indenture
	shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay
	the principal of and premium, if any, and interest, including Additional Interest, on this
	Debenture at the time and place and at the rate and in the money herein prescribed.
	     The Company has agreed that if Debentures are initially issued to the Trust or a trustee of
	such Trust in connection with the issuance of Trust Securities by the Trust (regardless of whether
	Debentures continue to be held by such Trust) and (i) there shall have occurred and be continuing
	an Event of Default, (ii) the Company shall be in default with respect to its payment of any
	obligations under the Capital Securities Guarantee, or (iii) the Company shall have given notice of
	its election to defer payments of interest on the Debentures by extending the interest payment
	period as provided herein and such Extension Period, or any extension thereof, shall be continuing,
	then the Company shall not, and shall not allow any Affiliate of the Company to, (x) declare or pay
	any dividends or distributions on, or redeem, purchase, acquire, or make a liquidation payment with
	respect to, any of the Companys capital stock or its Affiliates capital stock (other than
	payments of dividends or distributions to the Company) or make any guarantee payments with respect
	to the foregoing or (y) make any payment of principal of or interest or premium, if any, on or
	repay, repurchase or redeem any debt securities of the Company or any Affiliate that rank
	pari
	passu
	in all respects with or junior in interest to the Debentures (other than, with respect to
	clauses (x) and (y) above, (1) repurchases, redemptions or other acquisitions of shares of capital
	stock of the Company in connection with any employment contract, benefit plan or other similar
	arrangement with or for the benefit of one or more employees, officers, directors or consultants,
	in connection with a dividend reinvestment or stockholder stock purchase plan or in connection with
	the issuance of capital stock of the Company (or securities convertible into or exercisable for
	such capital stock) as consideration in an acquisition transaction entered into prior to the
	applicable Extension Period, if any, (2) as a result of any exchange or conversion of any class or
	series of the Companys capital stock (or any capital stock of a subsidiary of the Company) for any
	class or series of the Companys capital stock or of any class or series of the Companys
	indebtedness for any class or series of the Companys capital stock, (3) the purchase of fractional
	interests in shares of the Companys capital stock pursuant to the conversion or exchange
	provisions of such capital stock or the security being converted or exchanged, (4) any declaration
	of a dividend in connection with any stockholders rights plan, or the issuance of rights, stock or
	other property under any stockholders rights plan, or the redemption or repurchase of rights
	pursuant thereto, (5) any dividend in the form of stock, warrants, options or other rights where
	the
	Texas Capital Bancshares, Inc./Indenture
	A-8
 
	 
	dividend stock or the stock issuable upon exercise of such warrants, options or other rights
	is the same stock as that on which the dividend is being paid or ranks
	pari passu
	with or junior to
	such stock and any cash payments in lieu of fractional shares issued in connection therewith, or
	(6) payments under the Capital Securities Guarantee).
	     The Debentures are issuable only in registered, certificated form without coupons and in
	minimum denominations of $100,000.00 and any multiple of $1,000.00 in excess thereof. As provided
	in the Indenture and subject to the transfer restrictions and limitations as may be contained
	herein and therein from time to time, this Debenture is transferable by the holder hereof on the
	Debenture Register of the Company. Upon due presentment for registration of transfer of any
	Debenture at the Principal Office of the Trustee or at any office or agency of the Company
	maintained for such purpose as provided in Section 3.2 of the Indenture, the Company shall execute,
	the Company or the Trustee shall register and the Trustee or the Authenticating Agent shall
	authenticate and make available for delivery in the name of the transferee or transferees a new
	Debenture for a like aggregate principal amount. All Debentures presented for registration of
	transfer or for exchange or payment shall (if so required by the Company or the Trustee or the
	Authenticating Agent) be duly endorsed by, or be accompanied by a written instrument or instruments
	of transfer in form satisfactory to, the Company and the Trustee or the Authenticating Agent duly
	executed by the holder or his attorney duly authorized in writing. No service charge shall be made
	for any exchange or registration of transfer of Debentures, but the Company or the Trustee may
	require payment of a sum sufficient to cover any tax, fee or other governmental charge that may be
	imposed in connection therewith.
	     Prior to due presentment for registration of transfer of any Debenture, the Company, the
	Trustee, any Authenticating Agent, any paying agent, any transfer agent and any Debenture registrar
	may deem the Person in whose name such Debenture shall be registered upon the Debenture Register to
	be, and may treat him as, the absolute owner of such Debenture (whether or not such Debenture shall
	be overdue) for the purpose of receiving payment of or on account of the principal of, premium, if
	any, and interest on such Debenture and for all other purposes; and neither the Company nor the
	Trustee nor any Authenticating Agent nor any paying agent nor any transfer agent nor any Debenture
	registrar shall be affected by any notice to the contrary. All such payments so made to any holder
	for the time being or upon his order shall be valid, and, to the extent of the sum or sums so paid,
	effectual to satisfy and discharge the liability for moneys payable upon any such Debenture.
	     No recourse for the payment of the principal of or premium, if any, or interest on any
	Debenture, or for any claim based thereon or otherwise in respect thereof, and no recourse under or
	upon any obligation, covenant or agreement of the Company in the Indenture or in any supplemental
	indenture, or in any such Debenture, or because of the creation of any indebtedness represented
	thereby, shall be had against any incorporator, stockholder, employee, officer or director, as
	such, past, present or future, of the Company or of any successor Person of the Company, either
	directly or through the Company or any successor Person of the Company, whether by virtue of any
	constitution, statute or rule of law, or by the enforcement of any assessment or penalty or
	otherwise, it being expressly understood that all such liability is hereby expressly waived and
	released as a condition of, and as a consideration for, the execution of the Indenture and the
	issue of the Debentures.
	     Capitalized terms used and not defined in this Debenture shall have the meanings assigned in
	the Indenture dated as of the date of original issuance of this Debenture between the Trustee and
	the Company.
	     THE INDENTURE AND THE DEBENTURES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE
	LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO CONFLICT OF LAW PRINCIPLES THEREOF.
	Texas Capital Bancshares, Inc./Indenture
	A-9
 
	 
	EXHIBIT B
	FORM OF CERTIFICATE TO TRUSTEE
	     Pursuant to Section 3.5 of the Indenture between Texas Capital Bancshares, Inc., as the
	Company (the Company), and Wilmington Trust Company, as Trustee, dated as of April 28, 2006 (the
	Indenture), the undersigned hereby certifies as follows:
|  | 1. |  | In my capacity as an officer of the Company, I would normally have knowledge of
	any default by the Company during the last fiscal year in the performance of any
	covenants of the Company contained in the Indenture. | 
|  | 
|  | 2. |  | [To my knowledge, the Company is not in default in the performance of any
	covenants contained in the Indenture. | 
|  | 
|  |  |  | or, alternatively: | 
|  | 
|  |  |  | I am aware of the default(s) in the performance of covenants in the Indentures, as
	specified below.] | 
 
	     Capitalized terms used herein, and not otherwise defined herein, have the respective meanings
	ascribed thereto in the Indenture.
	     IN WITNESS WHEREOF, the undersigned has executed this Certificate.
	     Date:
	Texas Capital Bancshares, Inc./Indenture
	B-1
 
	 
	Exhibit 10.3
	 
	GUARANTEE AGREEMENT
	by and between
	TEXAS CAPITAL BANCSHARES, INC.
	and
	WILMINGTON TRUST COMPANY
	Dated as of April 28, 2006
	 
	Texas Capital Bancshares, Inc./Guarantee Agreement
	 
 
	 
	GUARANTEE AGREEMENT
	     This GUARANTEE AGREEMENT (this Guarantee), dated as of April 28, 2006, is executed and
	delivered by Texas Capital Bancshares, Inc., a Delaware corporation (the Guarantor), and
	Wilmington Trust Company, a Delaware banking corporation, as trustee (the Guarantee Trustee), for
	the benefit of the Holders (as defined herein) from time to time of the Capital Securities (as
	defined herein) of Texas Capital Statutory Trust IV, a Delaware statutory trust (the Issuer).
	     WHEREAS, pursuant to an Amended and Restated Declaration of Trust (the Declaration), dated
	as of the date hereof among Wilmington Trust Company, not in its individual capacity but solely as
	institutional trustee, the administrators of the Issuer named therein, the Guarantor, as sponsor,
	and the holders from time to time of undivided beneficial interests in the assets of the Issuer,
	the Issuer is issuing on the date hereof those undivided beneficial interests, having an aggregate
	liquidation amount of $25,000,000.00 (the Capital Securities); and
	     WHEREAS, as incentive for the Holders to purchase the Capital Securities, the Guarantor
	desires irrevocably and unconditionally to agree, to the extent set forth in this Guarantee, to pay
	to the Holders of Capital Securities the Guarantee Payments (as defined herein) and to make certain
	other payments on the terms and conditions set forth herein;
	     NOW, THEREFORE, in consideration of the purchase by each Holder of the Capital Securities,
	which purchase the Guarantor hereby agrees shall benefit the Guarantor, the Guarantor executes and
	delivers this Guarantee for the benefit of the Holders.
	ARTICLE I
	DEFINITIONS AND INTERPRETATION
	     
	Section 1.1.
	Definitions and Interpretation
	.
	In this Guarantee, unless the context
	otherwise requires:
	     (a) capitalized terms used in this Guarantee but not defined in the preamble above have the
	respective meanings assigned to them in this Section 1.1;
	     (b) a term defined anywhere in this Guarantee has the same meaning throughout;
	     (c) all references to the Guarantee or this Guarantee are to this Guarantee as modified,
	supplemented or amended from time to time;
	     (d) all references in this Guarantee to Articles or Sections are to Articles or Sections
	of this Guarantee, unless otherwise specified;
	     (e) terms defined in the Declaration as at the date of execution of this Guarantee have the
	same meanings when used in this Guarantee, unless otherwise defined in this Guarantee or unless the
	context otherwise requires; and
	     (f) a reference to the singular includes the plural and vice versa.
	     
	Affiliate
	 has the same meaning as given to that term in Rule 405 of the Securities
	Act of 1933, as amended, or any successor rule thereunder.
	     
	Beneficiaries
	 means any Person to whom the Issuer is or hereafter becomes indebted
	or liable.
	Texas Capital Bancshares, Inc./Guarantee Agreement
	 
 
	 
	     
	Capital Securities
	 has the meaning set forth in the recitals to this Guarantee.
	     
	Common Securities
	 means the common securities issued by the Issuer to the Guarantor
	pursuant to the Declaration.
	     
	Corporate Trust Office
	 means the office of the Guarantee Trustee at which the
	corporate trust business of the Guarantee Trustee shall, at any particular time, be principally
	administered, which office at the date of execution of this Guarantee is located at Rodney Square
	North, 1100 North Market Street, Wilmington, Delaware 19890-1600, Attention: Corporate Trust
	Administration.
	     
	Covered Person
	 means any Holder of Capital Securities.
	     
	Debentures
	 means the debt securities of the Guarantor designated the Floating Rate
	Junior Subordinated Deferrable Interest Debentures due 2036 held by the Institutional Trustee (as
	defined in the Declaration) of the Issuer.
	     
	Declaration Event of Default
	 means an Event of Default as defined in the
	Declaration.
	     
	Event of Default
	 has the meaning set forth in Section 2.4(a).
	     
	Guarantee Payments
	 means the following payments or distributions, without
	duplication, with respect to the Capital Securities, to the extent not paid or made by the Issuer:
	(i) any accrued and unpaid Distributions (as defined in the Declaration) which are required to be
	paid on such Capital Securities to the extent the Issuer shall have funds available therefor, (ii)
	the Redemption Price to the extent the Issuer has funds available therefor, with respect to any
	Capital Securities called for redemption by the Issuer, (iii) the Special Redemption Price to the
	extent the Issuer has funds available therefor, with respect to Capital Securities redeemed upon
	the occurrence of a Special Event, and (iv) upon a voluntary or involuntary liquidation,
	dissolution, winding-up or termination of the Issuer (other than in connection with the
	distribution of Debentures to the Holders of the Capital Securities in exchange therefor as
	provided in the Declaration), the lesser of (a) the aggregate of the liquidation amount and all
	accrued and unpaid Distributions on the Capital Securities to the date of payment, to the extent
	the Issuer shall have funds available therefor, and (b) the amount of assets of the Issuer
	remaining available for distribution to Holders in liquidation of the Issuer (in either case, the
	Liquidation Distribution).
	     
	Guarantee Trustee
	 means Wilmington Trust Company, until a Successor Guarantee
	Trustee has been appointed and has accepted such appointment pursuant to the terms of this
	Guarantee and thereafter means each such Successor Guarantee Trustee.
	     
	Guarantor
	 means Texas Capital Bancshares, Inc. and each of its successors and
	assigns.
	     
	Holder
	 means any holder, as registered on the books and records of the Issuer, of
	any Capital Securities;
	provided
	,
	however
	, that, in determining whether the Holders
	of the requisite percentage of Capital Securities have given any request, notice, consent or waiver
	hereunder, Holder shall not include the Guarantor or any Affiliate of the Guarantor.
	     
	Indemnified Person
	 means the Guarantee Trustee, any Affiliate of the Guarantee
	Trustee, or any officers, directors, shareholders, members, partners, employees, representatives,
	nominees, custodians or agents of the Guarantee Trustee.
	     
	Indenture
	 means the Indenture dated as of the date hereof between the Guarantor and
	Wilmington Trust Company, not in its individual capacity but solely as trustee, and any indenture
	Texas Capital Bancshares, Inc./Guarantee Agreement
	2
 
	 
	supplemental thereto pursuant to which the Debentures are to be issued to the institutional trustee
	of the Issuer.
	     
	Issuer
	 has the meaning set forth in the opening paragraph to this Guarantee.
	     
	Liquidation Distribution
	 has the meaning set forth in the definition of Guarantee
	Payments herein.
	     
	Majority in liquidation amount of the Capital Securities
	 means Holder(s) of
	outstanding Capital Securities, voting together as a class, but separately from the holders of
	Common Securities, of more than 50% of the aggregate liquidation amount (including the stated
	amount that would be paid on redemption, liquidation or otherwise, plus accrued and unpaid
	Distributions to the date upon which the voting percentages are determined) of all Capital
	Securities then outstanding.
	     
	Obligations
	 means any costs, expenses or liabilities (but not including liabilities
	related to taxes) of the Issuer other than obligations of the Issuer to pay to holders of any Trust
	Securities the amounts due such holders pursuant to the terms of the Trust Securities.
	     
	Officers Certificate
	 means, with respect to any Person, a certificate signed by one
	Authorized Officer of such Person. Any Officers Certificate delivered with respect to compliance
	with a condition or covenant provided for in this Guarantee shall include:
	     (a) a statement that the officer signing the Officers Certificate has read the
	covenant or condition and the definitions relating thereto;
	     (b) a brief statement of the nature and scope of the examination or investigation
	undertaken by the officer in rendering the Officers Certificate;
	     (c) a statement that the officer has made such examination or investigation as, in such
	officers opinion, is necessary to enable such officer to express an informed opinion as to
	whether or not such covenant or condition has been complied with; and
	     (d) a statement as to whether, in the opinion of the officer, such condition or
	covenant has been complied with.
	     
	Person
	 means a legal person, including any individual, corporation, estate,
	partnership, joint venture, association, joint stock company, limited liability company, trust,
	unincorporated association, or government or any agency or political subdivision thereof, or any
	other entity of whatever nature.
	     
	Redemption Price
	 has the meaning set forth in the Indenture.
	     
	Responsible Officer
	 means, with respect to the Guarantee Trustee, any officer within
	the Corporate Trust Office of the Guarantee Trustee including any Vice President, Assistant Vice
	President, Secretary, Assistant Secretary or any other officer of the Guarantee Trustee customarily
	performing functions similar to those performed by any of the above designated officers and also,
	with respect to a particular corporate trust matter, any other officer to whom such matter is
	referred because of that officers knowledge of and familiarity with the particular subject.
	     
	Special Event
	 has the meaning set forth in the Indenture.
	     
	Special Redemption Price
	 has the meaning set forth in the Indenture.
	Texas Capital Bancshares, Inc./Guarantee Agreement
	3
 
	 
	     
	Successor Guarantee Trustee
	 means a successor Guarantee Trustee possessing the
	qualifications to act as Guarantee Trustee under Section 3.1.
	     
	Trust Securities
	 means the Common Securities and the Capital Securities.
	ARTICLE II
	POWERS, DUTIES AND RIGHTS OF
	GUARANTEE TRUSTEE
	     
	Section 2.1.
	Powers and Duties of the Guarantee Trustee
	.
	     (a) This Guarantee shall be held by the Guarantee Trustee for the benefit of the Holders of
	the Capital Securities, and the Guarantee Trustee shall not transfer this Guarantee to any Person
	except a Holder of Capital Securities exercising his or her rights pursuant to Section 4.4(b) or to
	a Successor Guarantee Trustee on acceptance by such Successor Guarantee Trustee of its appointment
	to act as Successor Guarantee Trustee. The right, title and interest of the Guarantee Trustee
	shall automatically vest in any Successor Guarantee Trustee, and such vesting and cessation of
	title shall be effective whether or not conveyancing documents have been executed and delivered
	pursuant to the appointment of such Successor Guarantee Trustee.
	     (b) If an Event of Default actually known to a Responsible Officer of the Guarantee Trustee
	has occurred and is continuing, the Guarantee Trustee shall enforce this Guarantee for the benefit
	of the Holders of the Capital Securities.
	     (c) The Guarantee Trustee, before the occurrence of any Event of Default and after curing all
	Events of Default that may have occurred, shall undertake to perform only such duties as are
	specifically set forth in this Guarantee, and no implied covenants shall be read into this
	Guarantee against the Guarantee Trustee. In case an Event of Default has occurred (that has not
	been waived pursuant to Section 2.4) and is actually known to a Responsible Officer of the
	Guarantee Trustee, the Guarantee Trustee shall exercise such of the rights and powers vested in it
	by this Guarantee, and use the same degree of care and skill in its exercise thereof, as a prudent
	person would exercise or use under the circumstances in the conduct of his or her own affairs.
	     (d) No provision of this Guarantee shall be construed to relieve the Guarantee Trustee from
	liability for its own negligent action, its own negligent failure to act, or its own willful
	misconduct, except that:
	     (i) prior to the occurrence of any Event of Default and after the curing or waiving of
	all such Events of Default that may have occurred:
	          (A) the duties and obligations of the Guarantee Trustee shall be determined
	solely by the express provisions of this Guarantee, and the Guarantee Trustee shall
	not be liable except for the performance of such duties and obligations as are
	specifically set forth in this Guarantee, and no implied covenants or obligations
	shall be read into this Guarantee against the Guarantee Trustee; and
	          (B) in the absence of bad faith on the part of the Guarantee Trustee, the
	Guarantee Trustee may conclusively rely, as to the truth of the statements and the
	correctness of the opinions expressed therein, upon any certificates or opinions
	furnished
	to the Guarantee Trustee and conforming to the requirements of this Guarantee;
	but in the
	Texas Capital Bancshares, Inc./Guarantee Agreement
	4
 
	 
	case of any such certificates or opinions that by any provision hereof
	are specifically required to be furnished to the Guarantee Trustee, the Guarantee
	Trustee shall be under a duty to examine the same to determine whether or not they
	conform to the requirements of this Guarantee;
	     (ii) the Guarantee Trustee shall not be liable for any error of judgment made in good
	faith by a Responsible Officer of the Guarantee Trustee, unless it shall be proved that such
	Responsible Officer of the Guarantee Trustee or the Guarantee Trustee was negligent in
	ascertaining the pertinent facts upon which such judgment was made;
	     (iii) the Guarantee Trustee shall not be liable with respect to any action taken or
	omitted to be taken by it in good faith in accordance with the written direction of the
	Holders of not less than a Majority in liquidation amount of the Capital Securities relating
	to the time, method and place of conducting any proceeding for any remedy available to the
	Guarantee Trustee, or relating to the exercise of any trust or power conferred upon the
	Guarantee Trustee under this Guarantee; and
	     (iv) no provision of this Guarantee shall require the Guarantee Trustee to expend or
	risk its own funds or otherwise incur personal financial liability in the performance of any
	of its duties or in the exercise of any of its rights or powers, if the Guarantee Trustee
	shall have reasonable grounds for believing that the repayment of such funds is not
	reasonably assured to it under the terms of this Guarantee or security and indemnity,
	reasonably satisfactory to the Guarantee Trustee, against such risk or liability is not
	reasonably assured to it.
	     
	Section 2.2.
	Certain Rights of Guarantee Trustee
	.
	     (a) Subject to the provisions of Section 2.1:
	     (i) The Guarantee Trustee may conclusively rely, and shall be fully protected in acting
	or refraining from acting upon, any resolution, certificate, statement, instrument, opinion,
	report, notice, request, direction, consent, order, bond, debenture, note, other evidence of
	indebtedness or other paper or document believed by it to be genuine and to have been
	signed, sent or presented by the proper party or parties.
	     (ii) Any direction or act of the Guarantor contemplated by this Guarantee shall be
	sufficiently evidenced by an Officers Certificate.
	     (iii) Whenever, in the administration of this Guarantee, the Guarantee Trustee shall
	deem it desirable that a matter be proved or established before taking, suffering or
	omitting any action hereunder, the Guarantee Trustee (unless other evidence is herein
	specifically prescribed) may, in the absence of bad faith on its part, request and
	conclusively rely upon an Officers Certificate of the Guarantor which, upon receipt of such
	request, shall be promptly delivered by the Guarantor.
	     (iv) The Guarantee Trustee shall have no duty to see to any recording, filing or
	registration of any instrument (or any re-recording, refiling or re-registration thereof).
	     (v) The Guarantee Trustee may consult with counsel of its selection, and the advice or
	opinion of such counsel with respect to legal matters shall be full and complete
	authorization and protection in respect of any action taken, suffered or omitted by it
	hereunder in good faith and
	in accordance with such advice or opinion. Such counsel may be counsel to the Guarantor
	or any
	Texas Capital Bancshares, Inc./Guarantee Agreement
	5
 
	 
	of its Affiliates and may include any of its employees. The Guarantee Trustee shall
	have the right at any time to seek instructions concerning the administration of this
	Guarantee from any court of competent jurisdiction.
	     (vi) The Guarantee Trustee shall be under no obligation to exercise any of the rights
	or powers vested in it by this Guarantee at the request or direction of any Holder, unless
	such Holder shall have provided to the Guarantee Trustee such security and indemnity,
	reasonably satisfactory to the Guarantee Trustee, against the costs, expenses (including
	attorneys fees and expenses and the expenses of the Guarantee Trustees agents, nominees or
	custodians) and liabilities that might be incurred by it in complying with such request or
	direction, including such reasonable advances as may be requested by the Guarantee Trustee;
	provided
	,
	however
	, that nothing contained in this Section 2.2(a)(vi) shall
	relieve the Guarantee Trustee, upon the occurrence of an Event of Default, of its obligation
	to exercise the rights and powers vested in it by this Guarantee.
	     (vii) The Guarantee Trustee shall not be bound to make any investigation into the facts
	or matters stated in any resolution, certificate, statement, instrument, opinion, report,
	notice, request, direction, consent, order, bond, debenture, note, other evidence of
	indebtedness or other paper or document, but the Guarantee Trustee, in its discretion, may
	make such further inquiry or investigation into such facts or matters as it may see fit.
	     (viii) The Guarantee Trustee may execute any of the trusts or powers hereunder or
	perform any duties hereunder either directly or by or through agents, nominees, custodians
	or attorneys, and the Guarantee Trustee shall not be responsible for any misconduct or
	negligence on the part of any agent or attorney appointed with due care by it hereunder.
	     (ix) Any action taken by the Guarantee Trustee or its agents hereunder shall bind the
	Holders of the Capital Securities, and the signature of the Guarantee Trustee or its agents
	alone shall be sufficient and effective to perform any such action. No third party shall be
	required to inquire as to the authority of the Guarantee Trustee to so act or as to its
	compliance with any of the terms and provisions of this Guarantee, both of which shall be
	conclusively evidenced by the Guarantee Trustees or its agents taking such action.
	     (x) Whenever in the administration of this Guarantee the Guarantee Trustee shall deem
	it desirable to receive instructions with respect to enforcing any remedy or right or taking
	any other action hereunder, the Guarantee Trustee (i) may request instructions from the
	Holders of a Majority in liquidation amount of the Capital Securities, (ii) may refrain from
	enforcing such remedy or right or taking such other action until such instructions are
	received, and (iii) shall be protected in conclusively relying on or acting in accordance
	with such instructions.
	     (xi) The Guarantee Trustee shall not be liable for any action taken, suffered, or
	omitted to be taken by it in good faith, without negligence, and reasonably believed by it
	to be authorized or within the discretion or rights or powers conferred upon it by this
	Guarantee.
	     (b) No provision of this Guarantee shall be deemed to impose any duty or obligation on the
	Guarantee Trustee to perform any act or acts or exercise any right, power, duty or obligation
	conferred or imposed on it, in any jurisdiction in which it shall be illegal or in which the
	Guarantee Trustee shall be unqualified or incompetent in accordance with applicable law to perform
	any such act or acts or to exercise any such right, power, duty or obligation. No permissive power
	or authority available to the Guarantee Trustee shall be construed to be a duty.
	Texas Capital Bancshares, Inc./Guarantee Agreement
	6
 
	 
	     
	Section 2.3.
	Not Responsible for Recitals or Issuance of Guarantee
	.
	The recitals
	contained in this Guarantee shall be taken as the statements of the Guarantor, and the Guarantee
	Trustee does not assume any responsibility for their correctness. The Guarantee Trustee makes no
	representation as to the validity or sufficiency of this Guarantee.
	     
	Section 2.4.
	Events of Default; Waiver
	.
	     (a) An Event of Default under this Guarantee will occur upon the failure of the Guarantor to
	perform any of its payment or other obligations hereunder.
	     (b) The Holders of a Majority in liquidation amount of the Capital Securities may, voting or
	consenting as a class, on behalf of the Holders of all of the Capital Securities, waive any past
	Event of Default and its consequences. Upon such waiver, any such Event of Default shall cease to
	exist, and shall be deemed to have been cured, for every purpose of this Guarantee, but no such
	waiver shall extend to any subsequent or other default or Event of Default or impair any right
	consequent thereon.
	     
	Section 2.5.
	Events of Default; Notice
	.
	     (a) The Guarantee Trustee shall, within 90 days after the occurrence of an Event of Default,
	transmit by mail, first class postage prepaid, to the Holders of the Capital Securities and the
	Guarantor, notices of all Events of Default actually known to a Responsible Officer of the
	Guarantee Trustee, unless such defaults have been cured before the giving of such notice,
	provided
	,
	however
	, that the Guarantee Trustee shall be protected in withholding
	such notice if and so long as a Responsible Officer of the Guarantee Trustee in good faith
	determines that the withholding of such notice is in the interests of the Holders of the Capital
	Securities.
	     (b) The Guarantee Trustee shall not be deemed to have knowledge of any Event of Default unless
	the Guarantee Trustee shall have received written notice from the Guarantor or a Holder of the
	Capital Securities (except in the case of a payment default), or a Responsible Officer of the
	Guarantee Trustee charged with the administration of this Guarantee shall have obtained actual
	knowledge thereof.
	ARTICLE III
	GUARANTEE TRUSTEE
	     
	Section 3.1.
	Guarantee Trustee; Eligibility
	.
	     (a) There shall at all times be a Guarantee Trustee which shall:
	     (i) not be an Affiliate of the Guarantor, and
	     (ii) be a corporation organized and doing business under the laws of the United States
	of America or any State or Territory thereof or of the District of Columbia, or Person
	authorized under such laws to exercise corporate trust powers, having a combined capital and
	surplus of at least 50 million U.S. dollars ($50,000,000), and subject to supervision or
	examination by Federal, State, Territorial or District of Columbia authority. If such
	corporation publishes reports of condition at least annually, pursuant to law or to the
	requirements of the supervising or examining authority referred to above, then, for the
	purposes of this Section 3.1(a)(ii), the combined capital and surplus of such corporation
	shall be deemed to be its combined capital and surplus as set forth in its most recent
	report of condition so published.
	Texas Capital Bancshares, Inc./Guarantee Agreement
	7
 
	 
	     (b) If at any time the Guarantee Trustee shall cease to be eligible to so act under Section
	3.1(a), the Guarantee Trustee shall immediately resign in the manner and with the effect set out in
	Section 3.2(c).
	     (c) If the Guarantee Trustee has or shall acquire any conflicting interest within the
	meaning of Section 310(b) of the Trust Indenture Act, the Guarantee Trustee shall either eliminate
	such interest or resign to the extent and in the manner provided by, and subject to this Guarantee.
	     
	Section 3.2.
	Appointment, Removal and Resignation of Guarantee Trustee
	.
	     (a) Subject to Section 3.2(b), the Guarantee Trustee may be appointed or removed without cause
	at any time by the Guarantor except during an Event of Default.
	     (b) The Guarantee Trustee shall not be removed in accordance with Section 3.2(a) until a
	Successor Guarantee Trustee has been appointed and has accepted such appointment by written
	instrument executed by such Successor Guarantee Trustee and delivered to the Guarantor.
	     (c) The Guarantee Trustee appointed to office shall hold office until a Successor Guarantee
	Trustee shall have been appointed or until its removal or resignation. The Guarantee Trustee may
	resign from office (without need for prior or subsequent accounting) by an instrument in writing
	executed by the Guarantee Trustee and delivered to the Guarantor, which resignation shall not take
	effect until a Successor Guarantee Trustee has been appointed and has accepted such appointment by
	an instrument in writing executed by such Successor Guarantee Trustee and delivered to the
	Guarantor and the resigning Guarantee Trustee.
	     (d) If no Successor Guarantee Trustee shall have been appointed and accepted appointment as
	provided in this Section 3.2 within 60 days after delivery of an instrument of removal or
	resignation, the Guarantee Trustee resigning or being removed may petition any court of competent
	jurisdiction for appointment of a Successor Guarantee Trustee. Such court may thereupon, after
	prescribing such notice, if any, as it may deem proper, appoint a Successor Guarantee Trustee.
	     (e) No Guarantee Trustee shall be liable for the acts or omissions to act of any Successor
	Guarantee Trustee.
	     (f) Upon termination of this Guarantee or removal or resignation of the Guarantee Trustee
	pursuant to this Section 3.2, the Guarantor shall pay to the Guarantee Trustee all amounts owing to
	the Guarantee Trustee under Sections 7.2 and 7.3 accrued to the date of such termination, removal
	or resignation.
	Texas Capital Bancshares, Inc./Guarantee Agreement
	8
 
	 
	ARTICLE IV
	GUARANTEE
	     
	Section 4.1.
	Guarantee
	.
	     (a) The Guarantor irrevocably and unconditionally agrees to pay in full to the Holders the
	Guarantee Payments (without duplication of amounts theretofore paid by the Issuer), as and when
	due, regardless of any defense (except the defense of payment by the Issuer), right of set-off or
	counterclaim that the Issuer may have or assert. The Guarantors obligation to make a Guarantee
	Payment may be satisfied by direct payment of the required amounts by the Guarantor to the Holders
	or by causing the Issuer to pay such amounts to the Holders.
	     (b) The Guarantor hereby also agrees to assume any and all Obligations of the Issuer and in
	the event any such Obligation is not so assumed, subject to the terms and conditions hereof, the
	Guarantor hereby irrevocably and unconditionally guarantees to each Beneficiary the full payment,
	when and as due, of any and all Obligations to such Beneficiaries. This Guarantee is intended to
	be for the benefit of, and to be enforceable by, all such Beneficiaries, whether or not such
	Beneficiaries have received notice hereof.
	     
	Section 4.2.
	Waiver of Notice and Demand
	.
	The Guarantor hereby waives notice of
	acceptance of this Guarantee and of any liability to which it applies or may apply, presentment,
	demand for payment, any right to require a proceeding first against the Issuer or any other Person
	before proceeding against the Guarantor, protest, notice of nonpayment, notice of dishonor, notice
	of redemption and all other notices and demands.
	     
	Section 4.3.
	Obligations Not Affected
	.
	The obligations, covenants, agreements and
	duties of the Guarantor under this Guarantee shall in no way be affected or impaired by reason of
	the happening from time to time of any of the following:
	     (a) the release or waiver, by operation of law or otherwise, of the performance or observance
	by the Issuer of any express or implied agreement, covenant, term or condition relating to the
	Capital Securities to be performed or observed by the Issuer;
	     (b) the extension of time for the payment by the Issuer of all or any portion of the
	Distributions, Redemption Price, Special Redemption Price, Liquidation Distribution or any other
	sums payable under the terms of the Capital Securities or the extension of time for the performance
	of any other obligation under, arising out of or in connection with, the Capital Securities (other
	than an extension of time for payment of Distributions, Redemption Price, Special Redemption Price,
	Liquidation Distribution or other sum payable that results from the extension of any interest
	payment period on the Debentures or any extension of the maturity date of the Debentures permitted
	by the Indenture);
	     (c) any failure, omission, delay or lack of diligence on the part of the Holders to enforce,
	assert or exercise any right, privilege, power or remedy conferred on the Holders pursuant to the
	terms of the Capital Securities, or any action on the part of the Issuer granting indulgence or
	extension of any kind;
	     (d) the voluntary or involuntary liquidation, dissolution, sale of any collateral,
	receivership, insolvency, bankruptcy, assignment for the benefit of creditors, reorganization,
	arrangement, composition or readjustment of debt of, or other similar proceedings affecting, the
	Issuer or any of the assets of the Issuer;
	Texas Capital Bancshares, Inc./Guarantee Agreement
	9
 
	 
	     (e) any invalidity of, or defect or deficiency in, the Capital Securities;
	     (f) the settlement or compromise of any obligation guaranteed hereby or hereby incurred; or
	     (g) any other circumstance whatsoever that might otherwise constitute a legal or equitable
	discharge or defense of a guarantor, it being the intent of this Section 4.3 that the obligations
	of the Guarantor hereunder shall be absolute and unconditional under any and all circumstances.
	     There shall be no obligation of the Holders to give notice to, or obtain consent of, the
	Guarantor with respect to the happening of any of the foregoing.
	     
	Section 4.4.
	Rights of Holders
	.
	     (a) The Holders of a Majority in liquidation amount of the Capital Securities have the right
	to direct the time, method and place of conducting any proceeding for any remedy available to the
	Guarantee Trustee in respect of this Guarantee or to direct the exercise of any trust or power
	conferred upon the Guarantee Trustee under this Guarantee;
	provided
	,
	however
	, that
	(subject to Section 2.1) the Guarantee Trustee shall have the right to decline to follow any such
	direction if the Guarantee Trustee being advised by counsel determines that the action or
	proceeding so directed may not lawfully be taken or if the Guarantee Trustee in good faith by its
	board of directors or trustees, executive committees or a trust committee of directors or trustees
	and/or Responsible Officers shall determine that the action or proceedings so directed would
	involve the Guarantee Trustee in personal liability.
	     (b) Any Holder of Capital Securities may institute a legal proceeding directly against the
	Guarantor to enforce the Guarantee Trustees rights under this Guarantee, without first instituting
	a legal proceeding against the Issuer, the Guarantee Trustee or any other Person. The Guarantor
	waives any right or remedy to require that any such action be brought first against the Issuer, the
	Guarantee Trustee or any other Person before so proceeding directly against the Guarantor.
	     
	Section 4.5.
	Guarantee of Payment
	.
	This Guarantee creates a guarantee of payment and
	not of collection.
	     
	Section 4.6.
	Subrogation
	.
	The Guarantor shall be subrogated to all (if any) rights of
	the Holders of Capital Securities against the Issuer in respect of any amounts paid to such Holders
	by the Guarantor under this Guarantee;
	provided
	,
	however
	, that the Guarantor shall
	not (except to the extent required by mandatory provisions of law) be entitled to enforce or
	exercise any right that it may acquire by way of subrogation or any indemnity, reimbursement or
	other agreement, in all cases as a result of payment under this Guarantee, if, after giving effect
	to any such payment, any amounts are due and unpaid under this Guarantee. If any amount shall be
	paid to the Guarantor in violation of the preceding sentence, the Guarantor agrees to hold such
	amount in trust for the Holders and to pay over such amount to the Holders.
	     
	Section 4.7.
	Independent Obligations
	.
	The Guarantor acknowledges that its obligations
	hereunder are independent of the obligations of the Issuer with respect to the Capital Securities
	and that the Guarantor shall be liable as principal and as debtor hereunder to make Guarantee
	Payments pursuant to the terms of this Guarantee notwithstanding the occurrence of any event
	referred to in subsections (a) through (g), inclusive, of Section 4.3 hereof.
	     
	Section 4.8.
	Enforcement by a Beneficiary
	.
	A Beneficiary may enforce the obligations of the Guarantor contained in Section 4.1(b)
	directly against the Guarantor and the Guarantor waives any right or remedy to require that any
	action be brought against the Issuer or any other person or entity
	Texas Capital Bancshares, Inc./Guarantee Agreement
	10
 
	 
	before proceeding against the
	Guarantor. The Guarantor shall be subrogated to all rights (if any) of any Beneficiary against the
	Issuer in respect of any amounts paid to the Beneficiaries by the Guarantor under this Guarantee;
	provided
	,
	however
	, that the Guarantor shall not (except to the extent required by
	mandatory provisions of law) be entitled to enforce or exercise any rights that it may acquire by
	way of subrogation or any indemnity, reimbursement or other agreement, in all cases as a result of
	payment under this Guarantee, if at the time of any such payment, and after giving effect to such
	payment, any amounts are due and unpaid under this Guarantee.
	ARTICLE V
	LIMITATION OF TRANSACTIONS; SUBORDINATION
	     
	Section 5.1.
	Limitation of Transactions
	.
	So long as any Capital Securities remain
	outstanding, if (a) there shall have occurred and be continuing an Event of Default or a
	Declaration Event of Default or (b) the Guarantor shall have selected an Extension Period as
	provided in the Declaration and such period, or any extension thereof, shall have commenced and be
	continuing, then the Guarantor shall not and shall not permit any Affiliate to (x) declare or pay
	any dividends or distributions on, or redeem, purchase, acquire, or make a liquidation payment with
	respect to, any of the Guarantors or such Affiliates capital stock (other than payments of
	dividends or distributions to the Guarantor) or make any guarantee payments with respect to the
	foregoing or (y) make any payment of principal of or interest or premium, if any, on or repay,
	repurchase or redeem any debt securities of the Guarantor or any Affiliate that rank
	pari passu
	in
	all respects with or junior in interest to the Debentures (other than, with respect to clauses (x)
	and (y) above, (i) repurchases, redemptions or other acquisitions of shares of capital stock of the
	Guarantor in connection with any employment contract, benefit plan or other similar arrangement
	with or for the benefit of one or more employees, officers, directors or consultants, in connection
	with a dividend reinvestment or stockholder stock purchase plan or in connection with the issuance
	of capital stock of the Guarantor (or securities convertible into or exercisable for such capital
	stock) as consideration in an acquisition transaction entered into prior to the occurrence of the
	Event of Default, Declaration Event of Default or Extension Period, as applicable, (ii) as a result
	of any exchange or conversion of any class or series of the Guarantors capital stock (or any
	capital stock of a subsidiary of the Guarantor) for any class or series of the Guarantors capital
	stock or of any class or series of the Guarantors indebtedness for any class or series of the
	Guarantors capital stock, (iii) the purchase of fractional interests in shares of the Guarantors
	capital stock pursuant to the conversion or exchange provisions of such capital stock or the
	security being converted or exchanged, (iv) any declaration of a dividend in connection with any
	stockholders rights plan, or the issuance of rights, stock or other property under any
	stockholders rights plan, or the redemption or repurchase of rights pursuant thereto, (v) any
	dividend in the form of stock, warrants, options or other rights where the dividend stock or the
	stock issuable upon exercise of such warrants, options or other rights is the same stock as that on
	which the dividend is being paid or ranks
	pari passu
	with or junior to such stock and any cash
	payments in lieu of fractional shares issued in connection therewith, or (vi) payments under this
	Guarantee).
	     
	Section 5.2.
	Ranking
	.
	This Guarantee will constitute an unsecured obligation of the
	Guarantor and will rank subordinate and junior in right of payment to all present and future Senior
	Indebtedness (as defined in the Indenture) of the Guarantor. By their acceptance thereof, each
	Holder of Capital Securities agrees to the foregoing provisions of this Guarantee and the other
	terms set forth herein.
	     The right of the Guarantor to participate in any distribution of assets of any of its
	subsidiaries upon any such subsidiarys liquidation or reorganization or otherwise is subject to
	the prior claims of creditors of that subsidiary, except to the extent the Guarantor may itself be
	recognized as a creditor of that subsidiary. Accordingly, the Guarantors obligations under this
	Guarantee will be effectively
	Texas Capital Bancshares, Inc./Guarantee Agreement
	11
 
	 
	subordinated to all existing and future liabilities of the
	Guarantors subsidiaries, and claimants should look only to the assets of the Guarantor for
	payments hereunder. This Guarantee does not limit the incurrence or issuance of other secured or
	unsecured debt of the Guarantor, including Senior Indebtedness of the Guarantor, under any
	indenture that the Guarantor may enter into in the future or otherwise.
	ARTICLE VI
	TERMINATION
	     
	Section 6.1.
	Termination
	.
	This Guarantee shall terminate as to the Capital Securities
	(i) upon full payment of the Redemption Price or Special Redemption Price of all Capital Securities
	then outstanding, (ii) upon the distribution of all of the Debentures to the Holders of all of the
	Capital Securities or (iii) upon full payment of the amounts payable in accordance with the
	Declaration upon dissolution of the Issuer. This Guarantee will continue to be effective or will
	be reinstated, as the case may be, if at any time any Holder of Capital Securities must restore
	payment of any sums paid under the Capital Securities or under this Guarantee.
	ARTICLE VII
	INDEMNIFICATION
	     
	Section 7.1.
	Exculpation
	.
	     (a) No Indemnified Person shall be liable, responsible or accountable in damages or otherwise
	to the Guarantor or any Covered Person for any loss, damage or claim incurred by reason of any act
	or omission performed or omitted by such Indemnified Person in good faith in accordance with this
	Guarantee and in a manner that such Indemnified Person reasonably believed to be within the scope
	of the authority conferred on such Indemnified Person by this Guarantee or by law, except that an
	Indemnified Person shall be liable for any such loss, damage or claim incurred by reason of such
	Indemnified Persons negligence or willful misconduct with respect to such acts or omissions.
	     (b) An Indemnified Person shall be fully protected in relying in good faith upon the records
	of the Issuer or the Guarantor and upon such information, opinions, reports or statements presented
	to the Issuer or the Guarantor by any Person as to matters the Indemnified Person reasonably
	believes are within such other Persons professional or expert competence and who, if selected by
	such Indemnified Person, has been selected with reasonable care by such Indemnified Person,
	including information, opinions, reports or statements as to the value and amount of the assets,
	liabilities, profits, losses, or any other facts pertinent to the existence and amount of assets
	from which Distributions to Holders of Capital Securities might properly be paid.
	     
	Section 7.2.
	Indemnification
	.
	     (a) The Guarantor agrees to indemnify each Indemnified Person for, and to hold each
	Indemnified Person harmless against, any and all loss, liability, damage, claim or expense incurred
	without negligence or willful misconduct on the part of the Indemnified Person, arising out of or
	in
	connection with the acceptance or administration of the trust or trusts hereunder, including,
	but not limited to, the costs and expenses (including reasonable legal fees and expenses) of the
	Indemnified Person defending itself against, or investigating, any claim or liability in connection
	with the exercise or performance of any of the Indemnified Persons powers or duties hereunder.
	The obligation to indemnify as set forth in this Section 7.2 shall survive the resignation or
	removal of the Guarantee Trustee and the termination of this Guarantee.
	Texas Capital Bancshares, Inc./Guarantee Agreement
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	     (b) Promptly after receipt by an Indemnified Person under this Section 7.2 of notice of the
	commencement of any action, such Indemnified Person will, if a claim in respect thereof is to be
	made against the Guarantor under this Section 7.2, notify the Guarantor in writing of the
	commencement thereof; but the failure so to notify the Guarantor (i) will not relieve the Guarantor
	from liability under paragraph (a) above unless and to the extent that the Guarantor did not
	otherwise learn of such action and such failure results in the forfeiture by the Guarantor of
	substantial rights and defenses and (ii) will not, in any event, relieve the Guarantor from any
	obligations to any Indemnified Person other than the indemnification obligation provided in
	paragraph (a) above. The Guarantor shall be entitled to appoint counsel of the Guarantors choice
	at the Guarantors expense to represent the Indemnified Person in any action for which
	indemnification is sought (in which case the Guarantor shall not thereafter be responsible for the
	fees and expenses of any separate counsel retained by the Indemnified Person or Persons except as
	set forth below);
	provided
	,
	however
	, that such counsel shall be reasonably
	satisfactory to the Indemnified Person. Notwithstanding the Guarantors election to appoint
	counsel to represent the Guarantor in an action, the Indemnified Person shall have the right to
	employ separate counsel (including local counsel), and the Guarantor shall bear the reasonable
	fees, costs and expenses of such separate counsel if (i) the use of counsel chosen by the Guarantor
	to represent the Indemnified Person would present such counsel with a conflict of interest, (ii)
	the actual or potential defendants in, or targets of, any such action include both the Indemnified
	Person and the Guarantor and the Indemnified Person shall have reasonably concluded that there may
	be legal defenses available to it and/or other Indemnified Person(s) which are different from or
	additional to those available to the Guarantor, (iii) the Guarantor shall not have employed counsel
	satisfactory to the Indemnified Person to represent the Indemnified Person within a reasonable time
	after notice of the institution of such action or (iv) the Guarantor shall authorize the
	Indemnified Person to employ separate counsel at the expense of the Guarantor. The Guarantor will
	not, without the prior written consent of the Indemnified Persons, settle or compromise or consent
	to the entry of any judgment with respect to any pending or threatened claim, action, suit or
	proceeding in respect of which indemnification or contribution may be sought hereunder (whether or
	not the Indemnified Persons are actual or potential parties to such claim or action) unless such
	settlement, compromise or consent includes an unconditional release of each Indemnified Person from
	all liability arising out of such claim, action, suit or proceeding.
	     
	Section 7.3.
	Compensation; Reimbursement of Expenses
	.
	The Guarantor agrees:
	     (a) to pay to the Guarantee Trustee from time to time such compensation for all services
	rendered by it hereunder as the parties shall agree to from time to time (which compensation shall
	not be limited by any provision of law in regard to the compensation of a trustee of an express
	trust); and
	     (b) except as otherwise expressly provided herein, to reimburse the Guarantee Trustee upon
	request for all reasonable expenses, disbursements and advances incurred or made by it in
	accordance with any provision of this Guarantee (including the reasonable compensation and the
	expenses and disbursements of its agents and counsel), except any such expense, disbursement or
	advance as may be attributable to its negligence or willful misconduct.
	     For purposes of clarification, this Section 7.3 does not contemplate the payment by the
	Guarantor of acceptance or annual administration fees owing to the Guarantee Trustee for services
	to be provided by the Guarantee Trustee under this Guarantee or the fees and expenses of the
	Guarantee Trustees counsel in connection with the closing of the transactions contemplated by this
	Guarantee. The provisions of this Section 7.3 shall survive the resignation or removal of the
	Guarantee Trustee and the termination of this Guarantee.
	Texas Capital Bancshares, Inc./Guarantee Agreement
	13
 
	 
	ARTICLE VIII
	MISCELLANEOUS
	     
	Section 8.1.
	Successors and Assigns
	.
	All guarantees and agreements contained in this
	Guarantee shall bind the successors, assigns, receivers, trustees and representatives of the
	Guarantor and shall inure to the benefit of the Holders of the Capital Securities then outstanding.
	Except in connection with any merger or consolidation of the Guarantor with or into another entity
	or any sale, transfer or lease of the Guarantors assets to another entity, in each case, to the
	extent permitted under the Indenture, the Guarantor may not assign its rights or delegate its
	obligations under this Guarantee without the prior approval of the Holders of at least a Majority
	in liquidation amount of the Capital Securities.
	     
	Section 8.2.
	Amendments
	.
	Except with respect to any changes that do not adversely
	affect the rights of Holders of the Capital Securities in any material respect (in which case no
	consent of Holders will be required), this Guarantee may be amended only with the prior approval of
	the Holders of not less than a Majority in liquidation amount of the Capital Securities. The
	provisions of the Declaration with respect to amendments thereof apply to the giving of such
	approval.
	     
	Section 8.3.
	Notices
	.
	All notices provided for in this Guarantee shall be in writing,
	duly signed by the party giving such notice, and shall be delivered, telecopied or mailed by first
	class mail, as follows:
	     (a) If given to the Guarantee Trustee, at the Guarantee Trustees mailing address set forth
	below (or such other address as the Guarantee Trustee may give notice of to the Holders of the
	Capital Securities and the Guarantor):
	Wilmington Trust Company
	Rodney Square North
	1100 North Market Street
	Wilmington, Delaware 19890-1600
	Attention: Corporate Trust Administration
	Telecopy: 302-636-4140
	     (b) If given to the Guarantor, at the Guarantors mailing address set forth below (or such
	other address as the Guarantor may give notice of to the Holders of the Capital Securities and to
	the Guarantee Trustee):
	Texas Capital Bancshares, Inc.
	2100 McKinney Avenue, Suite 1250
	Dallas, Texas 75201
	Attention: Mark R. Frears
	Telecopy: 214-932-6687
	     (c) If given to any Holder of the Capital Securities, at the address set forth on the books
	and records of the Issuer.
	     All such notices shall be deemed to have been given when received in person, telecopied with
	receipt confirmed, or mailed by first class mail, postage prepaid, except that if a notice or other
	document is refused delivery or cannot be delivered because of a changed address of which no notice
	was given, such notice or other document shall be deemed to have been delivered on the date of such
	refusal or inability to deliver.
	Texas Capital Bancshares, Inc./Guarantee Agreement
	14
 
	 
	     
	Section 8.4.
	Benefit
	.
	This Guarantee is solely for the benefit of the Beneficiaries
	and, subject to Section 2.1(a), is not separately transferable from the Capital Securities.
	     
	Section 8.5.
	Governing Law
	.
	THIS GUARANTEE SHALL BE GOVERNED BY, AND CONSTRUED AND
	INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK, WITHOUT REGARD TO CONFLICT OF
	LAWS PRINCIPLES THEREOF (OTHER THAN SECTION 5-1401 OF THE NEW YORK GENERAL OBLIGATIONS LAW).
	     
	Section 8.6.
	Counterparts
	.
	This Guarantee may be executed in one or more
	counterparts, each of which shall be an original, but all of which taken together shall constitute
	one and the same instrument.
	     
	Section 8.7
	Separability
	. In case one or more of the provisions contained in this
	Guarantee shall for any reason be held to be invalid, illegal or unenforceable in any respect, such
	invalidity, illegality or unenforceability shall not affect any other provisions of this Guarantee,
	but this Guarantee shall be construed as if such invalid or illegal or unenforceable provision had
	never been contained herein.
	Signatures appear on the following page
	Texas Capital Bancshares, Inc./Guarantee Agreement
	15
 
	 
	     THIS GUARANTEE is executed as of the day and year first above written.
|  |  |  |  |  | 
|  |  | TEXAS CAPITAL BANCSHARES, INC., as Guarantor | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  | By: |  |  | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  |  |  | Name: | 
| 
	 
 |  |  |  | Title: | 
| 
	 
 |  |  |  |  | 
|  |  | WILMINGTON TRUST COMPANY, as Guarantee Trustee | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  | By: |  |  | 
| 
	 
 |  |  |  |  | 
| 
	 
 |  |  |  | Name: | 
| 
	 
 |  |  |  | Title: | 
 
	Texas Capital Bancshares, Inc./Guarantee Agreement
	16