Exhibit 4.2

OPKO HEALTH, INC.

and

U.S. Bank National Association

as Trustee

Guaranteed to the extent set forth therein by the Guarantors named herein.

INDENTURE

dated as of

February 7, 2019

TABLE OF CONTENTS

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ii

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N.A. means not applicable

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INDENTURE dated as of February 7, 2019 by and among OPKO HEALTH, INC., a Delaware corporation (the “Company”), the guarantors listed on Schedule 1 hereto (herein called the “Guarantors”), and U.S. BANK NATIONAL ASSOCIATION, as Trustee (the “Trustee”).

The Company has duly authorized the execution and delivery of this Indenture to provide for the issuance from time to time of its debentures, notes, or other evidences of indebtedness to be issued in one or more series (the “Securities”), as herein provided, up to such principal amount as may from time to time be authorized in or pursuant to one or more resolutions of the Board of Directors or by supplemental indenture.

Each party agrees as follows for the benefit of the other parties and for the equal and ratable benefit of the Holders of each series of the Securities:

ARTICLE 1

DEFINITIONS AND INCORPORATION

BY REFERENCE

Section  1.01 Certain Definitions .

“Affiliate” of any specified Person means any other Person directly or indirectly controlling or controlled by, or under direct or indirect common control with, such specified Person. For purposes of this definition, “control,” as used with respect to any Person, shall mean the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of such Person, whether through the ownership of voting securities, by agreement, or otherwise; provided , however , that beneficial ownership of 10% or more of the Voting Securities of a Person shall be deemed to be a controlling interest in such Person. For purposes of this definition, the terms “controlling,” “controlled by,” and “under common control with” have correlative meanings.

“Agent” means any Registrar, Paying Agent, authenticating agent, or co-Registrar.

“Board of Directors” means, with respect to any Person, the board of directors of such Person (or, if such Person is a limited liability company, the board of managers of such Person) or similar governing body or any authorized committee thereof.

“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 or pursuant to authorization by the Board of Directors and to be in full force and effect on the date of such certification (and delivered to the Trustee, if appropriate).

“Business Day” means any day other than a Legal Holiday.

“Closing Date” means the date on which the Securities of a particular series were originally issued under this Indenture.

“Commission” means the Securities and Exchange Commission.

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“Company” means the party named as such above until a successor replaces it pursuant to this Indenture and thereafter means the successor.

“Company Order” means a written order signed in the name of the Company by two Officers, one of whom must be the Company’s principal executive officer, principal financial officer, or principal accounting officer, and delivered to the Trustee.

“Company Request” means a written request signed in the name of the Company by its Chairman of the Board of Directors or the Chief Executive Officer, the President, any Vice President, the Chief Financial Officer, Controller, Assistant Controller, Treasurer, Assistant Treasurer, Corporate Secretary or Assistant Corporate Secretary of the Company, and delivered to the Trustee.

“Corporate Trust Office” shall mean the corporate trust office of the Trustee.

“Default” means any event that is, or with the passage of time or the giving of notice or both would be, an Event of Default.

“Depositary” means, with respect to the Securities of any series issuable or issued in whole or in part in the form of one or more Global Securities, the person designated as Depositary for such series by the Company, which Depositary shall be a clearing agency registered under the Exchange Act; and if at any time there is more than one such person, “Depositary” as used with respect to the Securities of any series shall mean the Depositary with respect to the Securities of such series.

“Exchange Act” means the Securities Exchange Act of 1934, as amended.

“GAAP” means generally accepted accounting principles set forth in the opinions and pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board, or in such other statements by such other entity as have been approved by a significant segment of the accounting profession, which are applicable to the circumstances as of the Closing Date.

“Global Security” shall mean a Security issued to evidence all or a part of any series of Securities that is executed by the Company and authenticated and delivered by the Trustee to a Depositary or pursuant to such Depositary’s instructions, all in accordance with this Indenture and pursuant to Section 2.01, which shall be registered as to principal and interest in the name of such Depositary or its nominee.

“Guarantee” means a guarantee by any Guarantor of an obligation under this Indenture.

“Holder” or “Securityholder” means a Person in whose name a Security is registered in the register of Securities kept by the Registrar.

“Indenture” means this Indenture, as amended or supplemented from time to time.

“Interest” when used with respect to an Original Issue Discount Security that by its terms bears interest only after Maturity, means interest payable after Maturity.

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“Maturity” when used with respect to any Security, means the date on which the principal of such Security or an installment of principal becomes due and payable as therein or herein provided, whether at Stated Maturity or by declaration of acceleration, call for redemption, or otherwise.

“Officer” means, with respect to any Person, the Chairman of the Board of Directors, the Chief Executive Officer, the President, any Vice President, the Chief Financial Officer, Controller, Assistant Controller, Treasurer, Assistant Treasurer, Corporate Secretary or Assistant Corporate Secretary of such Person.

“Officers’ Certificate” means a certificate signed by two or more Officers, one of whom must be the principal executive officer, principal financial officer, or principal accounting officer of the Company, that meets the requirements of Section 11.05 hereof.

“Opinion of Counsel” means an opinion from legal counsel who is reasonably acceptable to the Trustee that meets the requirements of Section 11.05 hereof. The counsel may be an employee of or counsel to the Company or the Trustee.

“Original Issue Discount Security” means any Security which provides that an amount less than its principal amount is due and payable upon acceleration after an Event of Default.

“Person” means any individual, corporation, partnership, joint venture, association, limited liability company, joint stock company, trust, unincorporated organization or government, or other entity.

“principal” of a Security means the principal amount due on the Stated Maturity of the Security plus the premium, if any, on the Security.

“Securities” means the Securities authenticated and delivered under this Indenture.

“Securities Act” means the Securities Act of 1933, as amended from time to time.

“Stated Maturity” when used with respect to any Security or any installment of interest thereon, means the date specified in such Security as the fixed date on which the principal of such Security or such installment of interest is due and payable.

“Subsidiary” means, with respect to any specified Person: (i) any corporation, association, or other business entity of which more than 50% of the total voting power of shares of capital stock entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers, or trustees of the corporation, association, or other business entity is at the time owned or controlled, directly or indirectly, by that Person or one or more of the other Subsidiaries of that Person (or a combination thereof); and (ii) any partnership (a) the sole general partner or the managing general partner of which is such Person or a Subsidiary of such Person, or (b) the only general partners of which are that Person or one or more Subsidiaries of that Person (or any combination thereof).

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“TIA” means the Trust Indenture Act of 1939 (15 U.S.C. §§77aaa-77bbbb) as in effect on the date on which this Indenture is qualified under the TIA; provided , however , that in the event the TIA is amended after such date, “TIA” means, to the extent required by such amendment, the Trust Indenture Act, as amended.

“Trust Officer” when used with respect to the Trustee, means any officer with direct responsibility for the administration of this Indenture and also means, with respect to a particular corporate trust matter, any other officer to whom such matter is referred because of his knowledge of and familiarity with the particular subject.

“Trustee” means the party named as such above until a successor becomes such pursuant to this Indenture and thereafter means or includes each party who is then a trustee hereunder, and if at any time there is more than one such party, “Trustee” as used with respect to the Securities of any series means the Trustee with respect to Securities of that series. If Trustees with respect to different series of Securities are trustees under this Indenture, nothing herein shall constitute the Trustees co-trustees of the same trust, and each Trustee shall be the trustee of a trust separate and apart from any trust administered by any other Trustee with respect to a different series of Securities.

“U.S. Government Obligations” means securities that are (i) direct obligations of the United States of America for the payment of which its full faith and credit is pledged or (ii) obligations of a person controlled or supervised by and acting as an agency or instrumentality of the United States of America, the payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America that is not callable or redeemable at the option of the issuer thereof, and shall also include a depository receipt issued by a bank or trust company as custodian with respect to any such U.S. Government Obligation or a specific payment of interest on or principal of any such U.S. Government Obligation held by such custodian for the account of the holder of a depository receipt, provided that (except as required by law) such custodian is not authorized to make any deduction from the amount payable to the holder of such depository receipt from any amount received by the custodian in respect of the U.S. Government Obligation evidenced by such depository receipt.

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Section  1.03 Incorporation by Reference of Trust Indenture Act .

Whenever this Indenture refers to a provision of the TIA, the provision is incorporated by reference in and made a part of this Indenture. The following TIA terms used in this Indenture have the following meanings:

“indenture securities” means the Securities.

“indenture securityholder” means a Securityholder.

“indenture to be qualified” means this Indenture.

“indenture trustee” or “institutional trustee” means the Trustee.

“obligor” on the Securities means the Company and any Guarantor and any successor obligor on the Securities.

All other terms used in this Indenture that are defined by the TIA, defined by TIA reference to another statute, or defined by Commission rule under the TIA have the meanings so assigned to them.

Section  1.04 Rules of Construction .

Unless the context otherwise requires:

(a) (a) a term has the meaning assigned to it;

(b) an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP;

(c) “or” is not exclusive;

(d) words in the singular include the plural, and in the plural include the singular;

(e) provisions apply to successive events and transactions; and

(f) references to sections of or rules under the Securities Act shall be deemed to include substitute, replacement of successor sections or rules adopted by the SEC from time to time.

ARTICLE 2

THE SECURITIES

Section  2.01 Unlimited In Amount, Issuable In Series, Form, and Dating .

The aggregate principal amount of Securities that may be authenticated and delivered under this Indenture is unlimited. The Securities may be issued in one or more series. There shall be established in or pursuant to a Board Resolution or an Officers’ Certificate pursuant to authority granted under a Board Resolution or established in one or more indentures supplemental hereto, prior to the issuance of Securities of any series:

(a) the title of the Securities of the series (which shall distinguish the Securities of the series from all other Securities);

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(b) the series designation and whether they are senior Securities, senior subordinated Securities, or subordinated Securities;

(c) any limit upon the aggregate principal amount of Securities of the series that may be authenticated and delivered under this Indenture (except for Securities authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Securities of the series pursuant to this Article 2);

(d) the price or prices (expressed as a percentage of the aggregate principal amount) at which the Securities will be issued and, if other than the principal amount of the Securities, the portion of the principal amount of the Securities payable upon the maturity of the debt securities;

(e) the date or dates on which the principal of the Securities of the series is payable;

(f) the rate or rates that may be fixed or variable at which the Securities of the series shall bear interest, if any, or the manner in which such rate or rates shall be determined, the date or dates from which such interest shall accrue, the interest payment dates on which such interest shall be payable, and the record dates for the determination of Holders to whom interest is payable;

(g) the place or places where the principal of, premium, if any, and any interest, if any, on Securities of the series shall be payable or the method of such payment, if by wire transfer, mail, or by other means, if other than as provided herein, and where the Securities can be surrendered for transfer, exchange, or conversion;

(h) the price or prices at which (if any), the period or periods within which (if any), and the terms and conditions upon which (if other than as provided herein) Securities of the series may be redeemed, in whole or in part, at the option, or as an obligation, of the Company;

(i) the obligation, if any, of the Company to redeem, purchase, or repay Securities of the series, in whole or in part, pursuant to any sinking fund or analogous provisions or at the option of a Holder thereof and the price or prices at which and the period and periods within which and the terms and conditions upon which Securities of the series shall be redeemed, purchased, or repaid pursuant to such obligation;

(j) the dates, if any, on which, and the price or prices at which, the Securities of the series will be repurchased by the Company at the option of the Holders thereof and other detailed terms and provisions of such repurchase obligations;

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(k) if convertible, the initial conversion price, the conversion period, and any other terms governing such conversion;

(l) if other than denominations of $1,000 and any multiple thereof, the denominations in which Securities of the series shall be issuable;

(m) if other than the principal amount thereof, the portion of the principal amount of Securities of the series which shall be payable upon declaration of acceleration of the Maturity thereof pursuant to Section 6.02 hereof;

(n) any addition to, change in, or deletion from the covenants set forth in Articles 4 or 5 that applies to Securities of the series;

(o) any addition to, changes in, or deletion from the Events of Default with respect to the Securities of a particular series and any change in the right of the Trustee or the requisite Holders of such Securities to declare the principal amount thereof due and payable pursuant to Section 6.02 hereof;

(p) the Trustee for the series of Securities;

(q) the forms of the Securities of the series in bearer or fully registered form (and, if in fully registered form, whether the Securities will be issuable, in whole or in part, as Global Securities);

(r) whether the Securities of the series shall be issued in whole or in part in the form of a Global Security or Securities; the terms and conditions, if any, upon which such Global Security or Securities may be exchanged in whole or in part for other individual Securities, and the Depositary for such Global Security and Securities;

(s) the provisions, if any, relating to any security provided for the Securities of the series;

(t) any other terms of the series (which terms may modify, supplement, or delete any provision of this Indenture with respect to such series; provided , however , that no such term may modify or delete any provision hereof if imposed by the TIA; and provided , further , that any modification or deletion of the rights, duties, or immunities of the Trustee hereunder shall have been consented to in writing by the Trustee);

(u) the terms and conditions, if any, upon which the Securities of the series shall be exchanged for or converted into other securities or property of the Company or securities of another person;

(v) any depositories, interest rate calculation agents, exchange rate calculation agents, or other agents with respect to Securities of such series if other than those appointed herein;

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(w) whether the Securities rank as senior subordinated Securities or subordinated Securities or any combination thereof and the terms of any such subordination;

(x) the form and terms of any guarantee of any Securities of the series;

(y) the terms and conditions of any defeasance provisions;

(z) the currency of denomination of the Securities;

(aa) the designation of the currency, currencies, or currency units in which payment of principal of, premium, and interest on the Securities will be made;

(bb) whether the Securities will be listed on any securities exchange or quotation system;

(cc) if payments of principal of, premium, or interest on the Securities will be made in one or more currencies or currency units other than that or those in which the Securities are denominated, the manner in which the exchange rate with respect to these payments will be determined;

(dd) the manner in which the amounts of payment of principal of, premium, or interest on the Securities will be determined, if these amounts may be determined by reference to an index based on a currency or currencies other than that in which the Securities are denominated or designated to be payable or by reference to a commodity, commodity index, stock exchange index, or financial index;

(ee) whether and under what circumstances, if any, additional amounts on any Securities will be paid in respect of any tax, assessment, or governmental charge and, if so, whether the Company will have the option to redeem the Securities instead of making the payment;

(ff) the terms and conditions pertaining to transfer, sale, or other assignment of the Securities; and

(gg) if the Securities are to be issued upon the exercise of debt warrants, the time, manner, and place for the Securities to be authenticated and delivered.

All Securities of any series shall be substantially identical except as to denomination and except as may otherwise be provided in or pursuant to such Board Resolution or Officers’ Certificate or in any such indenture supplemental hereto.

The principal of and any interest on the Securities shall be payable at the office or agency of the Company designated in the form of Security for the series (each such place herein called the “Place of Payment”); provided , however , that payment of interest may be made at the option of the Company by check mailed to the address of the Person entitled thereto as such address shall appear in the register of Securities referred to in Section 2.03 hereof.

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Each Security shall be in one of the forms approved from time to time by or pursuant to a Board Resolution or Officers’ Certificate, or established in one or more indentures supplemental hereto. Prior to the delivery of a Security to the Trustee for authentication in any form approved by or pursuant to a Board Resolution or Officers’ Certificate, the Company shall deliver to the Trustee the Board Resolution or Officers’ Certificate by or pursuant to which such form of Security has been approved, which Board Resolution or Officers’ Certificate shall have attached thereto a true and correct copy of the form of Security that has been approved by or pursuant thereto.

The Securities may have notations, legends, or endorsements required by law, stock exchange rule, or usage. Each Security shall be dated the date of its authentication.

Section  2.02 Execution and Authentication .

One or more Officers shall sign the Securities for the Company by manual or facsimile signature.

If an Officer whose signature is on a Security no longer holds that office at the time the Security is authenticated, the Security shall nevertheless be valid.

A Security shall not be valid until authenticated by the manual signature of the Trustee. The signature shall be conclusive evidence that the Security has been authenticated under this Indenture.

The Trustee shall authenticate Securities for original issue upon receipt of a Company Order.

The Trustee may appoint an authenticating agent acceptable to the Company to authenticate Securities. An authenticating agent may authenticate Securities whenever the Trustee may do so. Each reference in this Indenture to authentication by the Trustee includes authentication by such agent. An authenticating agent has the same rights as an Agent to deal with the Company or an Affiliate of the Company.

Section  2.03 Registrar and Paying Agent .

The Company shall maintain an office or agency where Securities of a particular series may be presented for registration of transfer or for exchange (the “Registrar”) and an office or agency where Securities of that series may be presented for payment (a “Paying Agent”). The Registrar for a particular series of Securities shall keep a register of the Securities of that series and of their registration of transfer and exchange. The Company may appoint one or more co-Registrars and one or more additional paying agents for each series of Securities. The term “Paying Agent” includes any additional paying agent. The Company may change any Paying Agent, Registrar, or co-Registrar without prior notice to any Securityholder. The Company shall notify the Trustee in writing of the name and address of any Agent not a party to this Indenture.

If the Company fails to maintain a Registrar or Paying Agent for any series of Securities, the Trustee shall act as such. The Company or any of its Affiliates may act as Paying Agent, Registrar, or co-Registrar.

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The Company hereby appoints the Trustee the initial Registrar and Paying Agent for each series of Securities unless another Registrar or Paying Agent, as the case may be, is appointed prior to the time Securities of that series are first issued.

Section  2.04 Paying Agent to Hold Money in Trust .

Whenever the Company has one or more Paying Agents it will, prior to each due date of the principal of, or interest on, any Securities, deposit with a Paying Agent a sum sufficient to pay the principal or interest so becoming due, such sum to be held in trust for the benefit of the Persons entitled to such principal or interest, and (unless such Paying Agent is the Trustee) the Company will promptly notify the Trustee of its action or failure so to act.

The Company shall require each Paying Agent other than the Trustee to agree in writing that such Paying Agent will hold in trust for the benefit of the Securityholders of the particular series for which it is acting, or the Trustee, all money held by the Paying Agent for the payment of principal or interest on the Securities of such series, and that such Paying Agent will notify the Trustee of any Default by the Company or any other obligor of the series of Securities in making any such payment and at any time during the continuance of any such Default, upon the written request of the Trustee, forthwith pay to the Trustee all sums so held in trust by such Paying Agent. If the Company or an Affiliate acts as Paying Agent, it shall segregate and hold in a separate trust fund for the benefit of the Securityholders of the particular series for which it is acting all money held by it as Paying Agent. The Company at any time may require a Paying Agent to pay all money held by it to the Trustee. Upon so doing, the Paying Agent (if other than the Company or an Affiliate of the Company) shall have no further liability for such money. Upon any bankruptcy or reorganization proceedings relating to the Company, the Trustee shall serve as Paying Agent for the Securities.

Section  2.05 Securityholder Lists .

The Trustee shall preserve in as current a form as is reasonably practicable the most recent list available to it of the names and addresses of Securityholders, separately by series, and shall otherwise comply with TIA Section 312(a). If the Trustee is not the Registrar, the Company shall furnish to the Trustee at least seven Business Days before each interest payment date and at such other times as the Trustee may request in writing, a list in such form and as of such date as the Trustee may reasonably require of the names and addresses of Securityholders, separately by series, relating to such interest payment date or request, as the case may be.

Section  2.06 Transfer and Exchange .

Where Securities of a series are presented to the Registrar or a co-Registrar with a request to register a transfer or to exchange them for an equal principal amount of Securities of the same series of other authorized denominations, the Registrar shall register the transfer or make the exchange if its requirements for such transactions are met. To permit registrations of transfers and exchanges, the Company shall issue and the Trustee shall authenticate Securities at the Registrar’s request.

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No service charge shall be made for any registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any transfer tax or similar governmental charge payable in connection therewith (other than any such transfer tax or similar governmental charge payable upon exchanges pursuant to Sections 2.09, 2.13, 3.06 or 9.04).

The Company need not issue, and the Registrar or co-Registrar need not register the transfer or exchange of, (i) any Security of a particular series during a period beginning at the opening of business 15 days before the day of any selection of Securities of that series for redemption under Section 3.02 and ending at the close of business on the day of selection, or (ii) any Security so selected for redemption in whole or in part, except the unredeemed portion of any Security of that series being redeemed in part.

Section  2.07 Replacement Securities .

If a mutilated Security is surrendered to the Trustee or if the Holder of a Security claims that the Security has been lost, destroyed, or wrongfully taken, the Company shall issue and the Trustee shall authenticate a replacement Security of same series if the Company’s and the Trustee’s requirements are met. The Trustee or the Company may require an indemnity bond to be furnished which is sufficient in the judgment of both to protect the Company, the Trustee, and any Agent from any loss which any of them may suffer if a Security is replaced. The Company or the Trustee may charge such Holder for its expenses in replacing a Security.

Every replacement Security is an obligation of the Company and shall be entitled to all the benefit of the Indenture equally and proportionately with any and all other Securities of the same series.

Section  2.08 Outstanding Securities .

The Securities of any series outstanding at any time are all the Securities of that series authenticated by the Trustee except for those canceled by it, those delivered to it for cancellation, and those described in this Section as not outstanding.

If a Security is replaced pursuant to Section 2.07, it ceases to be outstanding unless the Trustee receives proof satisfactory to it that the replaced Security is held by a protected purchaser.

If Securities are considered paid under Section 4.01, they cease to be outstanding and interest on them ceases to accrue.

Except as set forth in Section 2.09 hereof, a Security does not cease to be outstanding because the Company or an Affiliate holds the Security.

For each series of Original Issue Discount Securities, the principal amount of such Securities that shall be deemed to be outstanding and used to determine whether the necessary Holders have given any request, demand, authorization, direction, notice, consent, or waiver shall be the principal amount of such Securities that could be declared to be due and payable upon acceleration upon an Event of Default as of the date of such determination. When requested by the Trustee, the Company shall advise the Trustee of such amount, showing its computations in reasonable detail.

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Section 2.09 Temporary Securities.

Until definitive Securities are ready for delivery, the Company may prepare and the Trustee shall authenticate temporary Securities upon a Company Order. Temporary Securities shall be substantially in the form of definitive Securities but may have variations that the Company considers appropriate for temporary Securities. Without unreasonable delay, the Company shall prepare and the Trustee shall authenticate definitive Securities in exchange for temporary Securities.

Holders of temporary securities shall be entitled to all of the benefits of this Indenture.

Section  2.10 Cancellation .

The Company at any time may deliver Securities to the Trustee for cancellation. The Registrar and Paying Agent shall forward to the Trustee any Securities surrendered to them for registration of transfer, exchange, or payment. The Trustee shall cancel all Securities surrendered for registration of transfer, exchange, payment, replacement, or cancellation and shall return such canceled Securities to the Company at the Company’s written request. The Company may not issue new Securities to replace Securities that it has paid or that have been delivered to the Trustee for cancellation.

Section  2.11 Defaulted Interest .

If the Company fails to make a payment of interest on any series of Securities, the Company shall pay such defaulted interest plus (to the extent lawful) any interest payable on the defaulted interest, in any lawful manner. It may elect to pay such defaulted interest, plus any such interest payable on it, to the Persons who are Holders of such Securities on which the interest is due on a subsequent special record date. The Company shall notify the Trustee in writing of the amount of defaulted interest proposed to be paid on each such Security and the date of the proposed payment. The Company shall fix or cause to be fixed any such record date and payment date for such payment, provided that no such special record date shall be less than 10 days prior to the related payment date for such defaulted interest. At least 15 days before any such record date, the Company shall mail to Securityholders affected thereby a notice that states the record date, payment date, and amount of such interest to be paid.

Section  2.12 Special Record Dates .

(a) The Company may, but shall not be obligated to, set a record date for the purpose of determining the identity of Holders entitled to consent to any supplement, amendment, or waiver permitted by this Indenture. If a record date is fixed, the Holders of Securities of that series outstanding on such record date, and no other Holders, shall be entitled to consent to such supplement, amendment, or waiver or revoke any consent previously given, whether or not such Holders remain Holders after such record date. No consent shall be valid or effective for more than 90 days after such record date unless consents from Holders of the principal amount of Securities of that series required hereunder for such amendment or waiver to be effective shall have also been given and not revoked within such 90-day period.

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(b) The Company may, but shall not be obligated to, fix any day as a record date for the purpose of determining the Holders of any series of Securities entitled to join in the giving or making of any notice of Default, any declaration of acceleration, any request to institute proceedings, or any other similar direction. If a record date is fixed, the Holders of Securities of that series outstanding on such record date, and no other Holders, shall be entitled to join in such notice, declaration, request, or direction, whether or not such Holders remain Holders after such record date; provided , however , that no such action shall be effective hereunder unless taken on or prior to the date 90 days after such record date.

Section  2.13 Global Securities .

(a) Terms of Securities. A Board Resolution, a supplemental indenture hereto, or an Officers’ Certificate shall establish whether the Securities of a series shall be issued in whole or in part in the form of one or more Global Securities and the Depositary for such Global Security or Securities.

(b) Transfer and Exchange. Notwithstanding any provisions to the contrary contained in Section 2.06 of this Indenture and in addition thereto, any Global Security shall be exchangeable pursuant to Section 2.06 of this Indenture for securities registered in the names of Holders other than the Depositary for such Security or its nominee only if (i) such Depositary notifies the Company that it is unwilling or unable to continue as Depositary for such Global Security or if at any time such Depositary ceases to be a clearing agency registered under the Exchange Act, and, in either case, the Company fails to appoint a successor Depositary within 90 days of such event; or (ii) the Company executes and delivers to the Trustee an Officers’ Certificate to the effect that such Global Security shall be so exchangeable. Any Global Security that is exchangeable pursuant to the preceding sentence shall be exchangeable for Securities registered in such names as the Depositary shall direct in writing in an aggregate principal amount equal to the principal amount of the Global Security with like tenor and terms.

Except as provided in this paragraph (b) of this Section, a Global Security may not be transferred except as a whole by the Depositary with respect to such Global Security to a nominee of such Depositary, by a nominee of such Depositary to such Depositary or another nominee of such Depositary, or by the Depositary or any such nominee to a successor Depositary or a nominee of such a successor Depositary.

(c) Legend. Any Global Security issued hereunder shall bear a legend in substantially the following form:

“Unless this certificate is presented by an authorized representative of The Depository Trust Company, a New York corporation (“DTC”), New York, New York, to the issuer or its agent for registration of transfer, exchange, or payment and any certificate issued is registered in the name of Cede & Co. or such other name as may be requested by an authorized representative of DTC (and any payment is made to Cede & Co. or such other entity

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as may be requested by an authorized representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co. has an interest herein.

Transfer of this Global Security shall be limited to transfers in whole, but not in part, to nominees of DTC or to a successor thereof or such successor’s nominee and limited to transfers made in accordance with the restrictions set forth in the Indenture referred to herein.”

(d) Acts of Holders. The Depositary, as a Holder, may appoint agents and otherwise authorize participants to give or take any request, demand, authorization, direction, notice, consent, waiver, or other action which a Holder is entitled to give or take under this Indenture.

(e) Payments. Notwithstanding the other provisions of this Indenture, unless otherwise specified as contemplated by Section 2.01 hereof, payment of the principal of and interest, if any, on any Global Security shall be made to the Person specified therein.

(f) Consents, Declaration, and Directions. Except as provided in paragraph (e) of this Section, the Company, the Trustee, and any Agent shall treat a Person as the Holder of such principal amount of outstanding Securities of such series represented by a Global Security as shall be specified in a written statement of the Depositary with respect to such Global Security, for purposes of obtaining any consents, declarations, or directions required to be given by the Holders pursuant to this Indenture.

Section  2.14 CUSIP Numbers .

The Company in issuing any series of Securities may use “CUSIP” numbers (if then generally in use), and, if so, the Trustee shall use “CUSIP” numbers in notices as a convenience to Holders; provided that any such notice may state that no representation is made as to the correctness of such numbers either as printed on such Securities or as contained in any notice and that reliance may be placed only on the other identification numbers printed on such Securities, and any such action relating to such notice shall not be affected by any defect in or omission of such numbers in such notice. The Company shall promptly notify the Trustee of any change in the “CUSIP” numbers.

ARTICLE 3

REDEMPTION

Section  3.01 Notices to Trustee .

If the Company elects to redeem Securities of any series pursuant to any optional redemption provisions thereof, it shall furnish to the Trustee at least 30 days, but not more than 60 days before a redemption date, an Officer’s Certificate which shall specify (i) the provisions of such Security or this Indenture pursuant to which the redemption shall occur, (ii) the redemption date, (iii) the principal amount of Securities of that series to be redeemed, and (iv) the redemption price.

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If the Company elects to reduce the principal amount of Securities of any series to be redeemed pursuant to mandatory redemption provisions thereof, it shall notify the Trustee of the amount of, and the basis for, any such reduction. If the Company elects to credit against any such mandatory redemption Securities it has not previously delivered to the Trustee for cancellation, it shall deliver such Securities with such notice.

Section  3.02 Selection of Securities to Be Redeemed .

If less than all the Securities of any series are to be redeemed, or purchased in an offer to purchase at any time, the Trustee shall select the Securities of that series to be redeemed or purchased as follows: (1) if the Securities of such series are listed on any national securities exchange, in compliance with the requirements of the principal national securities exchange on which the Securities of that series are listed, or (2) if the Securities of that series are not listed on a national securities exchange, on a pro rata basis, by lot or by such other method as the Trustee deems fair and appropriate. In the event of a partial redemption or purchase by lot, the particular Securities to be redeemed or purchased will be selected not less than 30 nor more than 60 days prior to the redemption or purchase date by the Trustee from Securities of that series outstanding and not previously called for redemption.

The Trustee shall notify the Company promptly in writing of the Securities or portions of Securities to be called for redemption or purchase and, in the case of any Securities selected for partial redemption or purchase, the principal amount thereof to be redeemed or purchased. Except as otherwise provided as to any particular series of Securities, Securities and portions thereof that the Trustee selects shall be in amounts equal to the minimum authorized denomination for Securities of the series to be redeemed or purchased or any integral multiple thereof, except that if all of the Securities of the series are to be redeemed or purchased, the entire outstanding amount of the Securities of the series held by such Holder, even if not equal to the minimum authorized denomination for the Securities of that series, shall be redeemed or purchased. Provisions of this Indenture that apply to Securities called for redemption also apply to portions of Securities called for redemption.

Section  3.03 Notice of Redemption .

Except as otherwise provided as to any particular series of Securities, at least 30 days but not more than 60 days before a redemption date, the Company shall mail a notice of redemption to each Holder whose Securities are to be redeemed.

The notice shall identify the Securities of the series to be redeemed and shall state:

(1) the redemption date;

(2) the redemption price fixed in accordance with the terms of the Securities of the series to be redeemed, plus accrued interest, if any, to the date fixed for redemption (the “redemption price”);

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(3) if any Security is being redeemed in part, the portion of the principal amount of such Security to be redeemed and that, after the redemption date, upon surrender of such Security, a new Security or Securities in principal amount equal to the unredeemed portion will be issued upon cancellation of the original Securities;

(4) the name and address of the Paying Agent;

(5) that Securities called for redemption must be surrendered to the Paying Agent to collect the redemption price;

(6) that, unless the Company defaults in payment of the redemption price, interest on Securities called for redemption ceases to accrue on and after the redemption date;

(7) the CUSIP number, if any, of the Securities to be redeemed;

(8) the paragraph of the Securities and/or the section of the Indenture pursuant to which the Securities called for redemption are being redeemed; and

(9) that no representation is made as to the correctness or accuracy of the CUSIP number, if any, listed in such notice or printed on the Securities.

At the Company’s request, the Trustee shall give the notice of redemption in the Company’s name and at its expense; provided , however , that the Company shall have delivered to the Trustee, at least 45 days prior to the redemption date, an Officers’ Certificate requesting that the Trustee give such notice and setting forth the information to be stated in such notice as provided in the preceding paragraph. The notice 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 of the Holder of any Security shall not affect the validity of the proceeding for the redemption of any other Security.

Section 3.04 Effect of Notice of Redemption.

Except if the giving of a notice of redemption would violate the terms of the Company’s credit agreement, and subject to the subordination provisions of any series of Securities, once notice of redemption is mailed in accordance with Section 3.03 hereof, Securities called for redemption become due and payable on the redemption date for the redemption price. Upon surrender to the Paying Agent, such Securities will be paid at the Redemption Price.

Section  3.05 Deposit of Redemption Price .

On or before 10:00 a.m., New York City time, on the redemption or purchase date, the Company shall deposit with the Trustee or Paying Agent (or, if the Company or any Affiliate is the Paying Agent, shall segregate and hold in trust) money sufficient to pay the redemption or purchase price of all Securities called for redemption on that date other than Securities that have previously been delivered by the Company to the Trustee for cancellation. The Paying Agent shall return to the Company any money not required for that purpose.

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If the Company complies with the provisions of the preceding paragraph, on and after the redemption or purchase date, interest shall cease to accrue on the Securities (or the portions thereof) called for redemption or purchase. If a Security is redeemed or purchased on or after an interest record date but on or prior to the related interest payment date, then any accrued and unpaid interest shall be paid to the Person in whose name such Securities were registered at the close of business on such record date. If any Securities called for redemption or purchase shall not be so paid upon surrender for redemption because of the failure of the Company to comply with the preceding paragraph, interest shall be paid on the unpaid principal, from the redemption or purchase date until such principal is paid, and to the extent lawful on any interest not paid on such unpaid principal, in each case at the rate provided in accordance with the terms of the Securities of the series to be redeemed.

Section  3.06 Securities Redeemed or Purchased in Part .

Upon surrender of a Security that is redeemed or purchased in part, the Company shall issue and the Trustee shall authenticate for the Holder at the expense of the Company a new Security of same series equal in principal amount to the unredeemed or unpurchased portion of the Security surrendered.

ARTICLE 4

COVENANTS

Section  4.01 Payment of Securities .

The Company shall pay or cause to be paid the principal of, premium, if any, and interest on the Securities on the dates and in the manner provided in this Indenture and the Securities. Principal, premium, if any, and interest shall be considered paid on the date due if the Paying Agent, if other than the Company or an Affiliate, holds as of 10:00 a.m., New York City time, on that date immediately available funds designated for and sufficient to pay all principal, premium, if any, and interest then due.

To the extent lawful, the Company shall pay interest on overdue principal and overdue installments of interest at the rate per annum borne by the applicable series of Securities.

Section  4.02 Maintenance of Office or Agency .

The Company shall maintain in the Borough of Manhattan, The City of New York, an office or agency (which may be an office of the Trustee or an affiliate of the Trustee or Registrar) where Securities may be surrendered for registration of transfer or exchange and where notices and demands to or upon the Company in respect of the Securities and this Indenture may be served. The Company shall give prompt written notice to the Trustee of the location, and any change in the location, of such office or agency. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices, and demands may be made or served at the Corporate Trust Office of the Trustee.

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The Company may also from time to time designate one or more other offices or agencies where the Securities may be presented or surrendered for any or all such purposes and may from time to time rescind such designations; provided , however , that no such designation or rescission shall in any manner relieve the Company of its obligation to maintain an office or agency in the Borough of Manhattan, The City of New York for such purposes. The Company shall give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency.

The Company hereby designates the Corporate Trust Office of the Trustee as one such office or agency of the Company in accordance with Section 2.03.

Section  4.03 Reports .

The Company shall deliver to the Trustee within 15 days after it files them with the Commission copies of the annual reports and of the information, documents, and other reports (or copies of such portions of any of the foregoing as the Commission may by rules and regulations prescribe) that the Company is required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act; provided , however the Company shall not be required to deliver to the Trustee any materials for which the Company has sought and received confidential treatment by the Commission. The Company also shall comply with the other provisions of TIA Section 314(a).

Delivery of such reports, information, and documents to the Trustee is for informational purposes only and the Trustee’s receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on Officers’ Certificates).

Section  4.04 Compliance Certificate .

(a) The Company or any Guarantors shall deliver to the Trustee, within 120 days after the end of each fiscal year of the Company, an Officers’ Certificate stating that a review of the activities of the Company and its Subsidiaries during the preceding fiscal year has been made under the supervision of the signing Officers (one of whom shall be the principal executive officer, principal financial officer, or principal accounting officer of the Company) with a view to determining whether the Company has kept, observed, performed, and fulfilled its obligations under this Indenture, and further stating, as to each such Officer signing such certificate, that to the best of his or her knowledge the Company has kept, observed, performed, and fulfilled each and every covenant contained in this Indenture and is not in default in the performance or observance of any of the terms, provisions, and conditions of this Indenture (or, if a Default or Event of Default shall have occurred, describing all such Defaults or Events of Default of which he or she may have knowledge and what action the Company is taking or proposes to take with respect thereto) and that to the best of his or her knowledge no event has occurred and remains in existence by reason of which payments on account of the principal of or interest, if any, on the Notes is prohibited or if such event has occurred, a description of the event and what action the Company is taking or proposes to take with respect thereto.

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(b) The Company shall, so long as any of the Securities are outstanding, deliver to the Trustee, forthwith upon becoming aware of any Default or Event of Default, an Officers’ Certificate specifying such Default or Event of Default and what action the Company is taking or proposes to take with respect thereto.

Section  4.05 Taxes .

The Company shall pay prior to delinquency, all material taxes, assessments, and governmental levies except such as are contested in good faith by appropriate proceedings or where the failure to effect such payment is not adverse in any material respect to the Holders of any Securities.

Section  4.06 Stay, Extension, and Usury Laws .

The Company and any Guarantors covenant (to the extent that it may lawfully do so) that they shall not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension, or usury law wherever enacted, now or at any time hereafter in force, that may affect the covenants or the performance of this Indenture; and the Company and each Guarantor (to the extent that they may lawfully do so) hereby expressly waive all benefits or advantages of any such law, and covenant that they shall not, by resort to any such law, hinder, delay, or impede the execution of any power herein granted to the Trustee, but shall suffer and permit the execution of every such power as though no such law has been enacted.

Section  4.07 Calculation of Original Issue Discount .

If, as of the end of any fiscal year of the Company, the Company has any outstanding Original Issue Discount Securities under the Indenture, the Company shall file with the Trustee promptly following the end of such fiscal year (i) a written notice specifying the amount of original issue discount (including daily rates and accrual periods) accrued on such Original Issue Discount Securities as of the end of such year and (ii) such other specific information relating to such original issue discount as may then be required under the Internal Revenue Code of 1986, as amended from time to time.

ARTICLE 5

SUCCESSORS

Section  5.01 When Company May Merge, Etc .

In addition to provisions applicable to a particular series of Securities, the Company shall not directly or indirectly: (i) consolidate or merge with or into another Person (whether or not the Company is the surviving Person) or (ii) sell, assign, transfer, lease, convey, or otherwise dispose of all or substantially all of the properties or assets of the Company and its Subsidiaries in one or more related transactions to any Person unless:

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(1) either (x) the Company is the surviving Person; or (y) the Person formed by or surviving any such consolidation or merger (if other than the Company) or to which such sale, assignment, transfer, lease, conveyance, or other disposition shall have been made is a Person organized or existing under the laws of the United States, any state thereof, or the District of Columbia;

(2) the Person formed by or surviving any such consolidation or merger (if other than the Company) or the Person to which such sale, assignment, transfer, lease, conveyance, or other disposition shall have been made assumes (by supplemental indenture reasonably satisfactory to the Trustee) all the obligations of the Company under the Securities and this Indenture; and

(3) immediately after the transaction no Default or Event of Default exists.

The Company shall deliver to the Trustee on or prior to the consummation of the proposed transaction an Officers’ Certificate to the foregoing effect and an Opinion of Counsel stating that the proposed transaction and such supplemental indenture comply with this Indenture.

Section  5.02 Successor Person Substituted .

Upon any consolidation or merger, or any sale, assignment, transfer, conveyance, or other disposition (other than by lease) of all or substantially all of the assets of the Company in accordance with Section 5.01 hereof, the successor Person formed by such consolidation or into which the Company is merged or to which such sale, assignment, transfer, conveyance, or other disposition is made shall succeed to, and be substituted for (so that from and after the date of such consolidation, merger, sale, conveyance, or other disposition, the provisions of this Indenture referring to the “Company” shall refer instead to the successor Person and not to the Company), and may exercise every right and power of, the Company under this Indenture with the same effect as if such successor Person had been named as the Company herein; provided , however , that the predecessor Company shall not be relieved from the obligation to pay principal of, and interest on, any Securities except in the case of a sale, assignment, transfer, conveyance, or other disposition of all or substantially all of the Company’s assets that meets the requirements of Section 5.01 hereof.

ARTICLE 6

DEFAULTS AND REMEDIES

Section  6.01 Events of Default .

An “Event of Default” occurs with respect to Securities of any particular series if, unless as otherwise provided in the establishing Board Resolution, Officers’ Certificate, or supplemental indenture hereto:

(1) the Company defaults in the payment of interest on any Security of that series when the same becomes due and payable and the Default continues for a period of 30 days;

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(2) the Company defaults in the payment, when due, of the principal of, or premium, if any, on any Security of that series when the same becomes due and payable at Maturity, upon redemption (including in connection with any offer to purchase under the terms of such Securities), or otherwise;

(3) an Event of Default, as defined in the Securities of that series, occurs and is continuing, or the Company fails to comply with any of its other agreements in the Securities of that series or in this Indenture with respect to that series and the Default continues for the period and after the notice specified below;

(4) the Company pursuant to or within the meaning of any Bankruptcy Law:

(A) commences a voluntary case;

(B) consents to the entry of an order for relief against it in an involuntary case;

(C) consents to the appointment of a Custodian of it or for all or substantially all of its property;

(D) makes a general assignment for the benefit of its creditors; or

(E) admits in writing its inability generally to pay its debts as the same become due.

(5) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that:

(A) is for relief against the Company in an involuntary case;

(B) appoints a Custodian of the Company or for all or substantially all of its property; or

(C) orders the liquidation of the Company; and the order or decree remains unstayed and in effect for 60 days.

(6) any other Event of Default provided with respect to Securities of that series which is specified in a Board Resolution, Officers’ Certificate, or supplemental indenture establishing that series of Securities.

The term “Bankruptcy Law” means Title 11, U.S. Code or any similar federal or state law for the relief of debtors. The term “Custodian” means any receiver, trustee, assignee, liquidator, or similar official under any Bankruptcy Law.

A Default under clause (3) above is not an Event of Default with respect to a particular series of Securities until the Trustee or the Holders of at least 50% in principal amount of the then outstanding Securities of that series notify the Company of the Default and the Company does not cure the Default within 60 days after receipt of the notice. The notice must specify the Default, demand that it be remedied, and state that the notice is a “Notice of Default.” Such notice shall be given by the Trustee if so requested in writing by the Holders of 50% of the principal amount of the then outstanding Securities of that series.

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Section  6.02 Acceleration .

If an Event of Default with respect to Securities of any series (other than an Event of Default specified in clauses (4) and (5) of Section 6.01) occurs and is continuing, the Trustee by notice to the Company, or the Holders of at least 50% in principal amount of the then outstanding Securities of that series by notice to the Company and the Trustee, may, subject to any prior notice requirements set forth in any supplemental indenture, declare the unpaid principal (or, in the case of Original Issue Discount Securities, such lesser amount as may be provided for in such Securities) of and any accrued interest on all the Securities of that series to be due and payable on the Securities of that series. Upon such declaration the principal (or such lesser amount) and interest shall be due and payable immediately. If an Event of Default specified in clause (4) or (5) of Section 6.01 occurs, all of such amount shall become and be immediately due and payable without any declaration or other act on the part of the Trustee or any Holder. The Holders of a majority in principal amount of the then outstanding Securities of that series by notice to the Trustee may rescind an acceleration and its consequences if the rescission would not conflict with any judgment or decree and if all existing Events of Default with respect to that series have been cured or waived except nonpayment of principal (or such lesser amount) or interest that has become due solely because of the acceleration.

Section  6.03 Other Remedies .

If an Event of Default with respect to Securities of any series occurs and is continuing, the Trustee may pursue any available remedy to collect the payment of principal or interest on the Securities of that series or to enforce the performance of any provision of the Securities of that series or this Indenture.

The Trustee may maintain a proceeding even if it does not possess any of the Securities or does not produce any of them in the proceeding. A delay or omission by the Trustee or any Securityholder in exercising any right or remedy accruing upon an Event of Default shall not impair the right or remedy or constitute a waiver of or acquiescence in the Event of Default. All remedies are cumulative to the extent permitted by law.

Section  6.04 Waiver of Past Defaults .

Subject to Section 6.02, the Holders of not less than a majority in aggregate principal amount of the then outstanding Securities of any series, by notice to the Trustee, may on behalf of the Holders of the Securities of that series, waive an existing Default or Event of Default with respect to that series and its consequences except a continuing Default or Event of Default in the payment of the principal (including any mandatory sinking fund or like payment) of, premium, if any, or interest on any Security of that series (including in connection with an offer to purchase); provided , however , that the Holders of a majority in aggregate principal amount of the outstanding Securities of any series may rescind an acceleration and its consequences, including any related payment default that resulted from such acceleration and its consequences, including

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any related payment default that resulted from any such acceleration. Upon any such waiver, such Default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured for every purpose of this Indenture; but no such waiver shall extend to any subsequent or other Default or impair any right consequent thereon.

Section  6.05 Control by Majority .

The Holders of a majority in principal amount of the then outstanding Securities of any series may direct the time, method, and place of conducting any proceeding for exercising any remedy with respect to that series available to the Trustee or exercising any trust or power conferred on it. However, the Trustee may refuse to follow any direction that conflicts with law or this Indenture, that the Trustee determines may be unduly prejudicial to the rights of other Holders of Securities of that series, or that may involve the Trustee in personal liability. The Trustee may take any other action which it deems proper that is not inconsistent with any such direction. Notwithstanding any provision to the contrary in this Indenture, the Trustee shall not be obligated to take any action with respect to the provisions of Section 6.02 unless directed to do so pursuant to this Section 6.05.

Section  6.06 Limitation on Suits .

A Holder of Securities of any series may not pursue a remedy with respect to this Indenture or the Securities unless:

(1) the Holder gives to the Trustee written notice of a continuing Event of Default with respect to that series;

(2) the Holders of at least 25% in principal amount of the then outstanding Securities of that series make a written request to the Trustee to pursue the remedy;

(3) such Holder or Holders offer, and, if requested, provide to the Trustee indemnity satisfactory to the Trustee against any loss, liability, or expense;

(4) the Trustee does not comply with the request within 60 days after receipt of the request and the offer and, if requested, the provision of indemnity; and

(5) during such 60-day period the Holders of a majority in principal amount of the then outstanding Securities of that series do not give the Trustee a direction inconsistent with the request.

No Holder of any series of Securities may use this Indenture to prejudice the rights of another Holder of Securities of that series or to obtain a preference or priority over another Holder of Securities of that series.

Section  6.07 Rights of Holders to Receive Payment .

Notwithstanding any other provision of this Indenture, the right of any Holder of a Security to receive payment of principal, premium, if any, and interest on the Security, on or after the respective due dates expressed in the Security (including in connection with any offer to purchase), or to bring suit for the enforcement of any such payment on or after such respective dates, shall not, except as provided in the subordination provisions, if any, applicable to such Security, be impaired or affected without the consent of the Holder.

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Section  6.08 Collection Suit by Trustee .

If an Event of Default specified in Section 6.01(1) or (2) hereof occurs and is continuing with respect to Securities of any series, the Trustee may recover judgment in its own name and as trustee of an express trust against the Company for the whole amount of principal (or such portion of the principal as may be specified as due upon acceleration at that time in the terms of that series of Securities), premium, if any, and interest, remaining unpaid on the Securities of that series then outstanding, together with (to the extent lawful) interest on overdue principal and interest, and such further amount as shall be sufficient to cover the costs and, to the extent lawful, expenses of collection, including the reasonable compensation, expenses, disbursements, and advances of the Trustee, its agents, and counsel, and any other amounts due the Trustee under Section 7.07 hereof.

Section  6.09 Trustee May File Proofs of Claim .

The Trustee may 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 the reasonable compensation, expenses, disbursements, and advances of the Trustee, its agents, and counsel, and any other amounts due to the Trustee under Section 7.07 hereof) and the Securityholders allowed in any judicial proceedings relative to the Company (or any other obligor on the Securities), its creditors, or its property and shall be entitled to and empowered to collect, receive, and distribute any money or other property payable or deliverable on any such claims, and any custodian in any such judicial proceedings is hereby authorized by each Holder 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 Holders, to pay to the Trustee any amount due to it for the reasonable compensation, expenses, disbursements, and advances of the Trustee, its agent, and counsel, and any other amounts due the Trustee under Section 7.07 hereof. Nothing contained herein shall be deemed 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 Securities 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.

Section  6.10 Priorities .

If the Trustee collects any money with respect to Securities of any series pursuant to this Article, it shall pay out the money in the following order:

FIRST: to the Trustee, its agents, and attorneys for amounts due under Section 7.07 hereof, including payment of all compensation, expense, and liabilities incurred, and all advances made, by the Trustee and the costs and expenses of collection;

SECOND: in accordance with the subordination provisions, if any, of the Securities of such series;

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THIRD: to Securityholders for amounts due and unpaid on the Securities of such series for principal, premium, if any, and interest, ratably, without preference or priority of any kind, according to the amounts due and payable on the Securities of such series for principal, premium, if any, and interest, respectively; and

FOURTH: to the Company or to such party as a court of competent jurisdiction shall direct.

The Trustee may fix a record date and payment date for any payment to Holders of Securities of any series pursuant to this Section. The Trustee shall notify the Company in writing reasonably in advance of any such record date and payment date.

Section 6.11 Undertaking for Costs.

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 a Trustee, a court in its discretion may require the filing by any party litigant in the suit of an undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable costs, including reasonable attorneys’ fees and expenses, against any party litigant in the suit, having due regard to the merits and good faith of the claims or defense made by the party litigant. This Section does not apply to a suit by the Trustee, a suit by a Holder pursuant to Section 6.07 hereof, or a suit by Holders of more than 10% in principal amount of the then outstanding Securities of any series.

ARTICLE 7

TRUSTEE

Section  7.01 Duties of Trustee .

(a) If an Event of Default has occurred and is continuing, 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.

(b) Except during the continuance of an Event of Default known to the Trustee:

(i) the duties of the Trustee shall be determined solely by the express provisions of this Indenture or the TIA and the Trustee need perform only those duties that are specifically set forth in this Indenture or the TIA and no others, and no implied covenants or obligations shall be read into this Indenture against the Trustee; and

(ii) in the absence of bad faith on its part, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture. However, in the case of any certificates or opinions which by any provision hereof are specifically

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required to be furnished to the Trustee, the Trustee shall examine the certificates and opinions to determine whether or not they conform to the requirements of this Indenture (but need not confirm or investigate the accuracy of mathematical calculations or other facts stated therein).

(c) The Trustee may not be relieved from liabilities for its own negligent action, its own negligent failure to act, or its own willful misconduct, except that:

(i) this paragraph does not limit the effect of paragraph (b) of this Section;

(ii) the Trustee shall not be liable for any error of judgment made in good faith by a responsible officer of the Trustee, unless it is proved that the Trustee was negligent in ascertaining the pertinent facts; and

(iii) the Trustee shall not be liable with respect to any action it takes or omits to take in good faith in accordance with a direction received by it pursuant to Section 6.05 hereof.

(d) Whether or not therein expressly so provided, every provision of this Indenture that in any way relates to the Trustee is subject to paragraphs (a), (b), and (c) of this Section.

(e) No provision of this Indenture shall require the Trustee to expend or risk its own funds or incur any liability. The Trustee may refuse to perform any duty or exercise any right or power, including without limitation, the provisions of Section 6.05 hereof, unless it receives security and indemnity satisfactory to it against any loss, liability or expense.

(f) The Trustee shall not be liable for interest on any money received by it except as the Trustee may agree in writing with the Company. Absent written instruction from the Company, the Trustee shall not be required to invest any such money. Money held in trust by the Trustee need not be segregated from other funds except to the extent required by law.

Section  7.02 Rights of Trustee .

Subject to TIA Section 315(a) through (d):

(a) The Trustee may conclusively rely on any document believed by it to be genuine and to have been signed or presented by the proper person. 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, direction, consent, order, bond, debenture, note, other evidence of indebtedness, or other paper or document, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts or matters as it may see fit.

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(b) Before the Trustee acts or refrains from acting, it may require an Officers’ Certificate or an Opinion of Counsel, or both. The Trustee shall not be liable for any action it takes or omits to take in good faith in reliance on such Officers’ Certificate or Opinion of Counsel.

(c) The Trustee may act through agents and shall not be responsible for the misconduct or negligence of any agent appointed with due care.

(d) The Trustee shall not be liable for any action it takes or omits to take in good faith which it believes to be authorized or within its rights or powers under the Indenture, unless the Trustee’s conduct constitutes negligence.

(e) Unless otherwise specifically provided in this Indenture, any demand, request, direction, or notice from the Company shall be sufficient if signed by an Officer of the Company.

(f) The Trustee may consult with counsel of its selection and may rely upon the advice of such counsel or any Opinion of Counsel.

(g) The Trustee shall not be deemed to have notice of any Default or Event of Default unless a Trust Officer of the Trustee has actual knowledge thereof or unless written notice of any event that is in fact such a default is received by the Trustee at the Corporate Trust Office of the Trustee, and such notice references the Securities generally or the Securities of a particular series, as the case may be, and this Indenture.

(h) The permissive rights of the Trustee to do things enumerated in this Indenture shall not be construed as duties.

Section  7.03 Individual Rights of Trustee .

The Trustee in its individual or any other capacity may become the owner or pledgee of Securities and may otherwise deal with the Company or an Affiliate with the same rights it would have if it were not Trustee. Any Agent may do the same with like rights. However, the Trustee is subject to TIA Sections 310(b) and 311.

Section  7.04 Trustee ’ s Disclaimer .

The Trustee makes no representation as to the validity or adequacy of this Indenture or the Securities, it shall not be accountable for the Company’s use of the proceeds from the Securities, and it shall not be responsible for any statement in the Securities other than its certificate of authentication.

Section  7.05 Notice of Defaults .

If a Default or Event of Default with respect to the Securities of any series occurs and is continuing and if it is known to the Trustee, the Trustee shall mail to all Holders of Securities of that series a notice of the Default or Event of Default within 90 days after it occurs. Except in the case of a Default or Event of Default in payment on any such Security, the Trustee may withhold the notice if and so long as a committee of its Trust Officers in good faith determines that withholding the notice is in the interests of such Securityholders.

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Section  7.06 Reports by Trustee to Holders .

Within 60 days after May 15 in each year, the Trustee with respect to any series of Securities shall mail to Holders of Securities of that series as provided in TIA Section 313(c) a brief report dated as of such May 15 that complies with TIA Section 313(a) (if such report is required by TIA Section 313(a)). The Trustee shall also comply with TIA Section 313(b)(2).

A copy of each report at the time of its mailing to Securityholders shall be mailed to the Company and filed with the Commission and each stock exchange on which any of the Securities are listed, as required by TIA Section 313(d). The Company shall notify the Trustee when the Securities are listed on any stock exchange, and of any delisting thereof.

Section  7.07 Compensation and Indemnity .

The Company shall pay to the Trustee from time to time such compensation as shall be agreed upon in writing for its services hereunder. The Company shall reimburse the Trustee upon written request for all reasonable out-of-pocket expenses incurred by it. Such expenses shall include the reasonable compensation and out-of-pocket expenses of the Trustee’s agents and counsel.

The Company shall indemnify each of the Trustee or any predecessor Trustee for any loss, liability, damage, claims, or expenses, including taxes (other than taxes based upon, measured by or determined by the income of the Trustee) incurred by it, without negligence or bad faith on its part, in connection with the acceptance or administration of this Indenture and its duties hereunder. The Trustee shall notify the Company promptly of any claim for which it may seek indemnity. The Company shall defend the claim and the Trustee shall cooperate in the defense. The Trustee may have separate counsel and the Company shall pay the reasonable fees and expenses of such counsel. The Company need not pay for any settlement made without its consent.

To secure the Company’s payment obligations in this Section, the Trustee shall have a lien prior to the Securities on all money or property held or collected by the Trustee in its capacity as Trustee, except money or property held in trust to pay principal and interest on particular Securities. Such lien will survive the satisfaction and discharge of this Indenture.

If the Trustee incurs expenses or renders services after an Event of Default specified in Section 6.01(4) or (5) hereof occurs, the expenses and the compensation for the services will be intended to constitute expenses of administration under any applicable Bankruptcy Law.

This Section 7.07 shall survive the resignation or removal of the Trustee and the termination of this Indenture.

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Section  7.08 Replacement of Trustee .

A resignation or removal of the Trustee with respect to one or more or all series of Securities and appointment of a successor Trustee shall become effective only upon the successor Trustee’s acceptance of appointment as provided in this Section.

The Trustee may resign with respect to one or more or all series of Securities by so notifying the Company in writing. The Holders of a majority in principal amount of the then outstanding Securities of any series may remove the Trustee as to that series by so notifying the Trustee in writing and may appoint a successor Trustee with the Company’s consent. The Company may remove the Trustee with respect to one or more or all series of Securities if:

(1) the Trustee fails to comply with Section 7.10 hereof;

(2) the Trustee is adjudged bankrupt or insolvent;

(3) a receiver or other public officer takes charge of the Trustee or its property; or

(4) the Trustee becomes incapable of acting.

If, as to any series of Securities, the Trustee resigns or is removed or if a vacancy exists in the office of Trustee for any reason, the Company shall promptly appoint a successor Trustee for that series. Within one year after the successor Trustee with respect to any series takes office, the Holders of a majority in principal amount of the then outstanding Securities of that series may appoint a successor Trustee to replace the successor Trustee appointed by the Company. If a successor Trustee as to a particular series does not take office within 60 days after the retiring Trustee resigns or is removed, the retiring Trustee, the Company, or the Holders of at least 10% in principal amount of the then outstanding Securities of that series may petition any court of competent jurisdiction for the appointment of a successor Trustee.

If the Trustee fails to comply with Section 7.10 hereof with respect to any series, any Holder of Securities of that series who satisfies the requirements of TIA Section 310(b) may petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee for that series.

A successor Trustee as to any series of Securities shall deliver a written acceptance of its appointment to the retiring Trustee and to the Company. Immediately after that, the retiring Trustee shall promptly transfer all property held by it as Trustee to the successor Trustee (subject to the lien provided for in Section 7.07 hereof), the resignation or removal of the retiring Trustee shall become effective, and the successor Trustee shall have all the rights, powers, and duties of the Trustee under this Indenture as to that series. The successor Trustee shall mail a notice of its succession to the Holders of Securities of that series.

Notwithstanding replacement of the Trustee pursuant to this Section 7.08, the Company’s obligations under Section 7.07 hereof shall continue for the benefit of the retiring trustee.

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In case of the appointment hereunder of a successor Trustee with respect to the Securities of one or more (but not all) series, the Company, the retiring Trustee, and each successor Trustee with respect to the Securities of one or more series shall execute and deliver an indenture supplemental hereto wherein each successor Trustee shall accept such appointment and that (1) shall contain such provisions as shall be necessary or desirable to transfer and confirm to, and to vest in, each successor Trustee all the rights, powers, trusts, and duties of the retiring Trustee with respect to the Securities of that or those series to which the appointment of such successor Trustee relates, (2) shall contain such provisions as shall be necessary or desirable to confirm that all the rights, powers, trusts, and duties of the retiring Trustee with respect to the Securities of that or those series as to which the retiring Trustee is not retiring shall continue to be vested in the retiring Trustee, and (3) shall add to or change any of the provisions of this Indenture as shall be necessary or desirable to provide for or facilitate the administration of the trusts hereunder by more than one Trustee; provided , however , that nothing herein or in such supplemental indenture shall constitute such Trustee co-trustees of the same trust and that each such Trustee shall be trustee of a trust hereunder separate and apart from any trust hereunder administered by any other such Trustee.

Upon the execution and delivery of such supplemental indenture the resignation or removal of the retiring Trustee shall become effective to the extent provided therein and each such successor Trustee, without any further act, deed, or conveyance, shall become vested with all the rights, powers, trusts, and duties of the retiring Trustee with respect to the Securities of that or those series to which the appointment of such successor Trustee relates.

Section  7.09 Successor Trustee by Merger, etc .

If the Trustee as to any series of Securities consolidates, merges, or converts into, or transfers all or substantially all of its corporate trust business to, another corporation, the successor corporation without any further act shall be the successor Trustee as to that series.

Section  7.10 Eligibility; Disqualification .

Each series of Securities shall always have a Trustee who satisfies the requirements of TIA Section 310(a)(1), (2), and (5). The Trustee as to any series of Securities shall always have a combined capital and surplus of at least $25,000,000 as set forth in its most recent published annual report of condition. The Trustee is subject to TIA Section 310(b).

Section  7.11 Preferential Collection of Claims Against Company .

The Trustee is subject to TIA Section 311(a), excluding any creditor relationship listed in TIA Section 311(b). A Trustee who has resigned or been removed shall be subject to TIA Section 311(a) to the extent indicated therein.

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ARTICLE 8

SATISFACTION AND DISCHARGE; DEFEASANCE

Section  8.01 Satisfaction and Discharge .

This Indenture will be discharged and will cease to be of further effect with respect to any series of Securities issued hereunder, when:

(1) either:

(a) all Securities of such series that have been authenticated (except lost, stolen, or destroyed Securities that have been replaced or paid and Notes for whose payment money has theretofore been deposited in trust and thereafter repaid to the Company) have been delivered to the Trustee for cancellation; or

(b) all Securities of such series that have not been delivered to the Trustee for cancellation have become due and payable by reason of the making of a notice of redemption or otherwise or will become due and payable within one year and the Company or any Guarantor has irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust solely for the benefit of the Holders, cash in U.S. dollars, non-callable U.S. Government Obligations, foreign government obligations, or a combination thereof, in such amounts as will be sufficient without consideration of any reinvestment of interest, to pay and discharge the entire indebtedness on the Notes not delivered to the Trustee for cancellation for principal, premium, and accrued interest to the date of Maturity or redemption;

(2) no Default or Event of Default with respect to such series of Securities shall have occurred and be continuing on the date of such deposit or shall occur as a result of such deposit and such deposit will not result in a breach or violation of, or constitute a default under, any other material instrument to which the Company or any Guarantor is a party to or by which the Company or any Guarantor is bound;

(3) the Company or any Guarantor has paid or caused to be paid all sums payable by it under this Indenture with respect to such series of Securities; and

(4) the Company has delivered irrevocable instructions to the Trustee under this Indenture to apply the deposited money toward the payment of the Securities of such series at Maturity or the redemption date, as the case may be. In addition, the Company must deliver an Officers’ Certificate and an Opinion of Counsel to the Trustee stating that all conditions precedent to satisfaction and discharge have been satisfied.

Notwithstanding, the satisfaction and discharge of this Indenture with respect to a series of Securities, if money shall have been deposited with the Trustee pursuant to subclause (b) of clause (1) of this Section, the provisions of Section 8.06 shall survive.

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For purposes of this Indenture, the term “foreign government obligations” means, with respect to Securities of any series that are denominated in a currency other than United States dollars, (a) direct obligations of the government that issued or caused to be issued such currency for the payment of which obligations its full faith and credit is pledged, which are not callable or redeemable at the option of the issuer thereof; or (b) obligations of a person controlled or supervised by or acting as an agency or instrumentality of that government, the timely payment of which is unconditionally guaranteed as a full faith and credit obligation by that government, which are not callable or redeemable at the option of the issuer thereof.

Section  8.02 Option to Effect Legal Defeasance or Covenant Defeasance .

Unless Section 8.03 or 8.04 is otherwise specified to be inapplicable to Securities of a series, the Company may, at the option of its Board of Directors evidenced by a resolution set forth in an Officers’ Certificate, at any time, elect to have either Section 8.03 or 8.04 hereof be applied to all outstanding Securities of any such series upon compliance with the conditions set forth below in this Article 8.

Section  8.03 Legal Defeasance and Discharge .

Upon the Company’s exercise under Section 8.02 hereof of the option applicable to this Section 8.03, the Company and any Guarantor shall, subject to the satisfaction of the conditions set forth in Section 8.05 hereof, be deemed to have been discharged from their respective obligations with respect to all outstanding Securities of any series on the date the conditions set forth below are satisfied (hereinafter, “Legal Defeasance”). For this purpose, Legal Defeasance means that the Company and any Guarantor shall be deemed to have paid and discharged the entire Indebtedness represented by the outstanding Securities of a series, which shall thereafter be deemed to be “outstanding” only for the purposes of Section 8.06 hereof and the other Sections of this Indenture referred to in (a) and (b) below, and to have satisfied all its other obligations under such Securities and this Indenture (and the Trustee, on demand of and at the expense of the Company, shall execute proper instruments acknowledging the same), except for the following provisions which shall survive until otherwise terminated or discharged hereunder: (a) the rights of Holders of outstanding Securities to receive solely from the trust fund described in Section 8.05 hereof, and as more fully set forth in such Section, payments in respect of the principal of, premium, and interest on such Securities when such payments are due, (b) the Company’s obligations with respect to such Notes under Article 2 and Section 4.02 hereof, (c) the rights, powers, trusts, duties, and immunities of the Trustee hereunder and the Company’s or any Guarantors’ obligations in connection therewith, and (d) this Article 8. Subject to compliance with this Article 8, the Company may exercise its option under this Section 8.03 notwithstanding the prior exercise of its option under Section 8.04 hereof.

Section  8.04 Covenant Defeasance .

Upon the Company’s exercise under Section 8.02 hereof of the option applicable to this Section 8.04, the Company or any Guarantors shall, subject to the satisfaction of the conditions set forth in Section 8.05 hereof, be released from their respective obligations under the covenants contained in Sections 4.03, 4.04, 4.05, 4.06, and 4.07, and Section 5.01 hereof with respect to the outstanding Securities of any series on and after the date the conditions set forth in Section 8.05

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are satisfied (hereinafter, “Covenant Defeasance”), and the Securities of such series shall thereafter be deemed not “outstanding” for the purposes of any direction, waiver, consent, or declaration, or act of Holders (and the consequences of any thereof) in connection with such covenants, but shall continue to be deemed “outstanding” for all other purposes hereunder (it being understood that such Securities shall not be deemed outstanding for accounting purposes). For this purpose, Covenant Defeasance means that, with respect to the outstanding Securities of any series, the Company or any Guarantors may omit to comply with and shall have no liability in respect of any term, condition, or limitation set forth in any such covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such covenant or by reason of any reference in any such covenant to any other provision herein or in any other document and such omission to comply shall not constitute a Default or an Event of Default under Section 6.01 hereof, but, except as specified above, the remainder of this Indenture and such Securities shall be unaffected thereby. In addition, upon the Company’s exercise under Section 8.02 hereof of the option applicable to this Section 8.04 hereof, subject to the satisfaction of the conditions set forth in Section 8.05 hereof, Sections 6.01(3) through 6.01(6) hereof shall not constitute Events of Default.

Section  8.05 Conditions to Legal or Covenant Defeasance .

The following shall be the conditions to the application of either Section 8.03 or 8.04 hereof to the outstanding Securities of any series. In order to exercise either Legal Defeasance or Covenant Defeasance:

(a) the Company must irrevocably deposit with the Trustee, in trust, for the benefit of the Holders, cash in United States dollars, non-callable U.S. Government Obligations, foreign government obligations, or a combination thereof, in such amounts as will be sufficient, in the opinion of a nationally recognized firm of independent public accountants, to pay the principal of, premium, and interest on the outstanding Securities on the stated date for payment thereof or on the applicable redemption date, as the case may be;

(b) in the case of an election under Section 8.03 hereof, the Company shall have delivered to the Trustee an Opinion of Counsel in the United States reasonably acceptable to the Trustee confirming that (A) the Company has received from, or there has been published by, the Internal Revenue Service a ruling or (B) since the date hereof, there has been a change in the applicable federal income tax law, in either case to the effect that, and based thereon such Opinion of Counsel shall confirm that, the Holders of the outstanding Securities will not recognize income, gain, or loss for federal income tax purposes as a result of such Legal Defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such Legal Defeasance had not occurred;

(c) in the case of an election under Section 8.04 hereof, the Company shall have delivered to the Trustee an Opinion of Counsel in the United States reasonably acceptable to the Trustee confirming that the Holders of the outstanding Securities will not recognize income, gain, or loss for federal income tax purposes as a result of such Covenant Defeasance and will be subject to federal income tax on the same amounts, in the same manner, and at the same times as would have been the case if such Covenant Defeasance had not occurred;

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(d) no Default or Event of Default shall have occurred and be continuing on the date of such deposit (other than a Default or Event of Default resulting from the incurrence of Indebtedness all or a portion of the proceeds of which will be used to defease the Securities pursuant to this Article 8 concurrently with such incurrence) or insofar as Sections 6.01(4) or 6.01(5) hereof is concerned, at any time in the period ending on the 91st day after the date of deposit;

(e) such Legal Defeasance or Covenant Defeasance shall not result in a breach or violation of, or constitute a default under, any material agreement or instrument (other than this Indenture) to which the Company or any of its Subsidiaries is a party or by which the Company or any of its Subsidiaries is bound;

(f) the Company shall have delivered to the Trustee an Officers’ Certificate stating that the deposit was not made by the Company with the intent of preferring the Holders over any other creditors of the Company or with the intent of defeating, hindering, delaying, or defrauding any other creditors of the Company; and

(g) the Company shall have delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent provided for or relating to the Legal Defeasance or the Covenant Defeasance have been complied with.

Section  8.06 Deposited Money and Government Securities to be Held in Trust; Other Miscellaneous Provisions .

Subject to Section 8.07 hereof, all money and non-callable U.S. Government Obligations or foreign government obligations (including the proceeds thereof) deposited with the Trustee (or other qualifying trustee, collectively for purposes of this Section 8.06, the “Trustee”) pursuant to Section 8.01 or Section 8.05 hereof in respect of the outstanding Securities shall be held in trust and applied by the Trustee, in accordance with the provisions of such Securities and this Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as Paying Agent) as the Trustee may determine, to the Holders of such Securities of all sums due and to become due thereon in respect of principal, premium, if any, and interest, but such money need not be segregated from other funds except to the extent required by law.

The Company shall pay and indemnify the Trustee against any tax, fee, or other charge imposed on or assessed against the cash or non-callable U.S. Government Obligations or foreign government obligations deposited pursuant to Section 8.05 hereof or the principal and interest received in respect thereof other than any such tax, fee, or other charge which by law is for the account of the Holders of the outstanding Securities.

Anything in this Article 8 to the contrary notwithstanding, the Trustee shall deliver or pay to the Company from time to time upon the request of the Company any money or non-callable U.S. Government Obligations or foreign government obligations held by it as provided in Section 8.05 hereof which, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee (which may be the opinion delivered under Section 8.05(a) hereof), are in excess of the amount thereof that would then be required to be deposited to effect an equivalent Legal Defeasance or Covenant Defeasance.

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Section  8.07 Repayment to Company .

Any money deposited with the Trustee or any Paying Agent, or then held by the Company, in trust for the payment of the principal of, premium, if any, or interest on any Securities and remaining unclaimed for two years after such principal and premium, if any, or interest has become due and payable shall be paid to the Company on its request or (if then held by the Company) shall be discharged from such trust; and the Holder of such Securities shall thereafter look only to the Company for payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money, and all liability of the Company as trustee thereof, shall thereupon cease; provided , however , that the Trustee or such Paying Agent, before being required to make any such repayment, may at the expense of the Company cause to be published once, in the New York Times and The Wall Street Journal (national edition), notice that such money remains unclaimed and that, after a date specified therein, which shall not be less than 30 days from the date of such notification or publication, any unclaimed balance of such money then remaining will be repaid to the Company.

Section  8.08 Reinstatement .

If the Trustee or Paying Agent is unable to apply any United States dollars or non-callable U.S. Government Securities in accordance with Section 8.03 or 8.04 hereof, as the case may be, by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, then the Company’s obligations under this Indenture and the Securities shall be revived and reinstated as though no deposit had occurred pursuant to Section 8.03 or 8.04 hereof until such time as the Trustee or Paying Agent is permitted to apply all such money in accordance with Section 8.03 or 8.04 hereof, as the case may be; provided , however , that, if the Company makes any payment of principal of, premium, if any, or interest on any Securities following the reinstatement of its obligations, the Company shall be subrogated to the rights of the Holders of such Securities to receive such payment from the money held by the Trustee or Paying Agent.

ARTICLE 9

SUPPLEMENTS, AMENDMENTS, AND WAIVERS

Section  9.01 Without Consent of Holders .

The Company and the Trustee as to any series of Securities may supplement or amend this Indenture or the Securities without notice to or the consent of any Securityholder:

(1) to cure any ambiguity, defect, or inconsistency;

(2) to comply with Article 5;

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(3) to comply with any requirements of the Commission in connection with the qualification of this Indenture under the TIA;

(4) to add or change any provisions of this Indenture to facilitate the issuance of, or to liberalize the terms of, Securities issued in bearer form, or to permit or facilitate the issuance of Securities in uncertificated form, provided that this action will not adversely affect the interests of the Holders of the Securities of any series in any material respect;

(5) to add to, change, or eliminate any of the provisions of this Indenture in respect of one or more series of Securities; provided , however , that any such addition, change, or elimination (A) shall neither (i) apply to any Security of any series created prior to the execution of such supplemental indenture and entitled to the benefit of such provision nor (ii) modify the rights of the Holder of any such Security with respect to such provision; or (B) shall become effective only when there is no outstanding Security of any series created prior to the execution of such supplemental indenture and entitled to the benefit of such provision;

(6) to add to existing covenants additional covenants for the benefit of the Holders of all or any series of Securities, to surrender any right or power conferred upon the Company in this Indenture, or to add events of default for the benefit of Holders of all or any series of Securities;

(7) to secure previously unsecured Securities;

(8) to make any change that does not adversely affect in any material respect the interests of the Securityholders of any series;

(9) to establish additional series of Securities as permitted by Section 2.01 hereof;

(10) to establish the form or terms of Securities of any series, including the provisions and procedures, if applicable, for the conversion or exchange of the Securities into other securities or property;

(11) to evidence and provide for the acceptance or appointment of a successor Trustee or facilitate the administration of the trusts under this Indenture by more than one Trustee;

(12) to make any provision with respect to the conversion or exchange of rights of Holders pursuant to the requirements of this Indenture;

(13) to close this Indenture with respect to the authentication and delivery of additional series of Securities or to qualify, or maintain qualification of, this Indenture under the TIA; or

(14) to supplement any of the provisions of this Indenture to the extent necessary to permit or facilitate defeasance and discharge of any series of Securities, provided that the action shall not adversely affect the interests of the Holders of Securities of any series in any material respect.

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Section  9.02 With Consent of Holders .

Subject to Section 6.07, the Company and the Trustee as to any series of Securities may amend this Indenture or the Securities of that series with the written consent of the Holders of a majority in principal amount of the then outstanding Securities of each series affected by the amendment, with each such series voting as a separate class. The Holders of a majority in principal amount of the then outstanding Securities of any series may also waive compliance in a particular instance by the Company with any provision of this Indenture with respect to that series or the Securities of that series; provided , however , that without the consent of each Securityholder affected, an amendment or waiver may not:

(1) reduce the percentage of the principal amount of Securities whose Holders must consent to an amendment or waiver;

(2) reduce the amount of, or postpone the date fixed for, the payment of any sinking fund or analogous provision;

(3) reduce the rate of, or change the time for payment of interest on, any Security;

(4) reduce the principal of or change the fixed Maturity of any Security or waive a redemption payment or alter the redemption provisions with respect thereto;

(5) make any Security payable in money other than that stated in the Security (including defaulted interest);

(6) reduce the principal amount of Original Issue Discount Securities payable upon acceleration of the Maturity thereof;

(7) make any change in Section 6.04, 6.07, or this Section 9.02;

(8) waive a default in the payment of the principal of, or interest on, any Security, except to the extent otherwise provided for in Section 6.02 hereof;

(9) change the place of payment on a Security;

(10) change the currency or currencies of payment of the principal of, and any premium, make-whole payment, interest, or additional amounts on, any Security;

(11) reduce the percentage of Holders of Securities whose consent is needed to modify or amend this Indenture;

(12) reduce the percentage of the Holders of outstanding Securities of any series necessary to modify or amend this Indenture, to waive compliance with provisions of this Indenture or defaults and their consequences under this Indenture, or to reduce the quorum or voting requirements contained in this Indenture;

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(13) make any change that adversely affects the right to convert or exchange any Security other than as permitted by this Indenture or decrease the conversion or exchange rate or increase the conversion or exchange price of any such Security; or

(14) waive a redemption payment with respect to any Security.

An amendment or waiver under this Section that waives, changes, or eliminates any covenant or other provision of this Indenture that has expressly been included solely for the benefit of one or more particular series of Securities, or that modifies the rights of the Holders of Securities of such series with respect to such covenant or other provision, shall be deemed not to affect the rights under this Indenture of the Holders of Securities of any other series.

It shall not be necessary for the consent of the Holders under this Section to approve the particular form of any proposed amendment or waiver, but it shall be sufficient if such consent approves the substance thereof.

The Company shall mail supplemental indentures to Holders upon request. Any failure of the Company to mail such notice, or any defect therein, shall not, however, in any way impair or affect the validity of any such supplemental indenture or waiver.

Section  9.03 Revocation and Effect of Consents .

Until an amendment or waiver becomes effective, a consent to it by a Holder of a Security is a continuing consent by the Holder and every subsequent Holder of a Security or portion of a Security that evidences the same debt as the consenting Holder’s Security, even if notation of the consent is not made on any Security; provided , however , any such Holder or subsequent Holder may revoke the consent as to his Security or portion of a Security if the Trustee receives the written notice of revocation before the date on which the amendment, supplement, or waiver becomes effective. An amendment, supplement, or waiver shall become effective in accordance with its terms and thereafter shall bind every Holder of Securities of that series.

Section  9.04 Notation on or Exchange of Securities .

If an amendment, supplement, or waiver changes the terms of a Security: (a) the Trustee may require the Holder of the Security to deliver it to the Trustee, the Trustee may, at the written direction of the Company and at the Company’s expense, place an appropriate notation on the Security about the changed terms and return it to the Holder and the Trustee may place an appropriate notation on any Security thereafter authenticated; or (b) if the Company or the Trustee so determines, the Company in exchange for the Security shall issue and the Trustee shall authenticate a new Security that reflects the changed terms.

Failure to make the appropriate notation or issue a new Security shall not affect the validity and effect of such amendment, supplement, or waiver.

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Section  9.05 Trustee to Sign Amendments, etc .

Subject to the preceding sentence, the Trustee shall sign any amendment or supplemental indenture if the same does not adversely affect the rights, duties, liabilities, or immunities of the Trustee. The Trustee may, but shall not be obligated to, execute any such amendment, supplement, or waiver that affects the Trustee’s own rights, duties, liabilities, or immunities under this Indenture or otherwise. The Company may not sign an amendment or supplemental indenture until the Board of Directors approves it. In executing any amended or supplemental indenture, the Trustee shall be entitled to receive and (subject to Section 7.01) shall be fully protected in relying upon, in addition to the documents required by Section 11.04 hereof, an Officer’s Certificate and an Opinion of Counsel stating that the execution of such amended or supplemental indenture is authorized or permitted by this Indenture.

ARTICLE 10

GUARANTEES

Section  10.01 Guarantee .

Any series of Securities may be guaranteed by one or more of the Guarantors. The terms and the form of any such Guarantee will be established in the manner contemplated by Section 2.01 for that particular series of Securities.

ARTICLE 11

MISCELLANEOUS

Section  11.01 Indenture Subject to Trust Indenture Act .

This Indenture is subject to the provisions of the TIA that are required to be part of this Indenture, and shall, to the extent applicable, be governed by such provisions.

Section  11.02 Notices .

Any notice or communication is duly given if in writing and delivered in person or sent by first-class mail (registered or certified, return receipt requested), telecopier or overnight air courier guaranteeing next-day delivery, addressed as follows:

If to the Company and/or any Guarantor:

OPKO Health, Inc.

4400 Biscayne Blvd.

Miami, Florida 33137

Attention: Kate Inman, General Counsel

Telephone: (305) 575-4138

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with a copy to:

Greenberg Traurig, P.A.

333 S.E. 2nd Avenue, Suite 4400

Miami, FL 33131

Attention: Robert L. Grossman, Esq.

                 Joshua M. Samek, Esq.

Telephone: (305) 579-0500

Facsimile: (305) 961-5856

If to the Trustee:

U.S. Bank National Association

Two Midtown Plaza

1349 West Peachtree Street N.W., Suite 1050

Atlanta, GA 30309

Attention: George Hogan

Telephone: (404) 898-8832

The Company or the Trustee by notice to the other may designate additional or different addresses for subsequent notices or communications.

All notices and communications (other than those sent to Holders) shall be deemed to have been duly given: at the time delivered by hand, if personally delivered; five Business Days after being deposited in the mail, postage prepaid, if mailed; when receipt acknowledged, if telecopied; and the next Business Day after timely delivery to the courier, if sent by overnight air courier guaranteeing next-day delivery.

Any notice or communication to a Securityholder shall be mailed by first-class mail, certified or registered, return receipt requested, or by overnight air courier guaranteeing next day delivery to his address shown on the register kept by the Registrar. Failure to mail a notice or communication to a Security holder or any defect in it shall not affect its sufficiency with respect to other Securityholders. If the Company mails a notice or communication to Securityholders, it shall mail a copy to the Trustee at the same time. Any notice or communication shall also be mailed to any Person described in TIA Section 313(c), to the extent required by the TIA.

If a notice or communication is mailed in the manner provided above within the time prescribed, it is duly given, whether or not the addressee receives it.

Section 11.03 Communication By Holders With Other Holders.

Holders may communicate pursuant to TIA Section 312(b) with other Holders with respect to their rights under this Indenture or the Securities. The Company, the Trustee, the Registrar, and anyone else shall have the protection of TIA Section 312(c).

Section 11.04 Certificate and Opinion as to Conditions Precedent.

Upon any request or application by the Company to the Trustee to take any action under this Indenture, the Company shall furnish to the Trustee:

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(a) an Officers’ Certificate, in form and substance reasonably satisfactory to the Trustee (which shall include the statements set forth in Section 11.05 hereof) stating that, in the opinion of the signers, all conditions precedent and covenants, if any, provided for in this Indenture relating to the proposed action have been complied with; and

(b) an Opinion of Counsel, in form and substance reasonably satisfactory to the Trustee (which shall include the statements set forth in Section 11.05 hereof) stating that, in the opinion of such counsel, such action is authorized or permitted by this Indenture and that all such conditions precedent have been complied with.

Section 11.05 Statements Required in Certificate or Opinion.

Each certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture (other than the certificate provided pursuant to TIA Section 314(a)(4) 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 or she has made such examination or investigation as is necessary to enable him or her 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; provided , however , that with respect to matters of fact an Opinion of Counsel may rely on an officer’s certificate or certificates of public officials.

Section 11.06 Rules by Trustee and Agents.

The Trustee as to Securities of any series may make reasonable rules for action by or at a meeting of Holders of Securities of that series. The Registrar and any Paying Agent or Authenticating Agent may make reasonable rules and set reasonable requirements for their functions.

Section 11.07 Legal Holidays.

A “Legal Holiday” is a Saturday, a Sunday, or a day on which banking institutions in the City of New York, New York or at a place of payment are authorized by law, regulation, or executive order to remain closed. If a payment date is a Legal Holiday at a place of payment, payment may be made at that place on the next succeeding day that is not a Legal Holiday, and no interest shall accrue for the intervening period.

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Section 11.08 No Recourse Against Others.

No past, present or future director, officer, employee, manager, securityholder, or incorporator, as such, of the Company or any successor Person shall have any liability for any obligations of the Company or any Guarantor under any series of Securities, any guarantees thereof, or the Indenture or for any claim based on, in respect of, or by reason of such obligations or their creation. Each Securityholder by accepting a Security waives and releases all such liability. The waiver and release are part of the consideration of issuance of the Securities.

Section 11.09 Counterparts.

This Indenture may be executed by the parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement.

Section 11.10 Governing Law.

The internal laws of the state of New York shall govern and be used to construe this Indenture and the Securities (including any guarantees thereof), without giving effect to the applicable principles of conflicts of laws to the extent that the application of the laws of another jurisdiction would be required thereby.

Section 11.11 Submission to Jurisdiction; Service of Process; Waiver of Jury Trial

Each party hereto hereby submits to the nonexclusive jurisdiction of the United States District Court for the Southern District of New York and of any New York State Court sitting in New York City for purposes of all legal proceedings arising out of or relating to this Indenture, the Securities (including any guarantee thereof) or the transactions contemplated hereby and thereby. Each party hereto irrevocably waives, to the fullest extent permitted by law, any objection which it may now or hereafter have to the laying of the venue of any such proceeding brought in such a court and any claim that any such proceeding brought in such a court has been brought in an inconvenient forum. Process in any such suit, action or proceeding may be served on any party anywhere in the world, whether within or without the state of New York. Without limiting the foregoing, the parties agree that service of process upon such party at the address referred to in Section 11.02, together with written notice of such service to such party, shall be deemed effective service of process upon such party. Each of the parties hereto irrevocably waives any and all rights to trial by jury in any legal proceeding arising out of or relating to this Indenture, the Securities (including any guarantee thereof), or the transactions contemplated hereby and thereby.

Section 11.12 Severability.

In case any provision in this Indenture or in the Securities shall be invalid, illegal, or unenforceable, the validity, legality, and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

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Section 11.13 Effect of Headings, Table of Contents, etc.

The Article and Section headings herein and the table of contents are for convenience only and shall not affect the construction hereof.

Section 11.14 Successors and Assigns.

All covenants and agreements of the Company in this Indenture and the Securities shall bind its successors and assigns. All agreements of the Trustee in this Indenture shall bind its successor. All agreements of any Guarantor in this Indenture shall bind its successors, except as otherwise provided by the terms hereof.

Section 11.15 No Interpretation of Other Agreements.

This Indenture may not be used to interpret another indenture, loan, or debt agreement of the Company or any Subsidiary or of any Person. Any such indenture, loan, or debt agreement may not be used to interpret this Indenture.

[Signature Page Follows]

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IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed, all as of the date first above written.

Schedule 1

GUARANTORS

None,

Exhibit 4.3

OPKO HEALTH, INC.

AND

U.S. BANK NATIONAL ASSOCIATION

as Trustee

FIRST SUPPLEMENTAL INDENTURE

Dated as of February 7, 2019

4.50% Convertible Senior Notes due 2025

TABLE OF CONTENTS

i

ii

iii

iv

This FIRST SUPPLEMENTAL INDENTURE (this “ First Supplemental Indenture ”), dated as of February 7, 2019, between OPKO HEALTH, INC., a Delaware corporation, as issuer (the “ Company ,” as more fully set forth in Section 1.02) and U.S. BANK NATIONAL ASSOCIATION, a national banking association organized and existing under the laws of the United States of America, as trustee (the “ Trustee ,” as more fully set forth in Section 1.02).

W I T N E S S E T H:

WHEREAS , the Company and the Trustee executed and delivered an Indenture, dated as of February 7, 2019 (the “ Base Indenture ” and as supplemented by this First Supplemental Indenture, the “ Indenture ”), to provide for the issuance by the Company from time to time of its debentures, notes or other debt instruments (the “ Securities ”);

WHEREAS , Section 2.01 and Section 9.01 of the Base Indenture provide that the Company, when authorized by a resolution of the Board of Directors of the Company (the “ Board of Directors ”), and the Trustee, at any time and from time to time, may enter into one or more indentures supplemental to the Base Indenture, without the consent of any Holders, to, among other things, establish one or more series of Securities as permitted by the Base Indenture;

WHEREAS , for its lawful corporate purposes, the Company has duly authorized the issuance of its 4.50% Convertible Senior Notes due 2025 (the “ Notes ”), initially in an aggregate principal amount not to exceed $200,000,000 (or $230,000,000 if the underwriter’s overallotment option is exercised in full), and in order to provide the terms and conditions upon which the Notes are to be authenticated, issued and delivered, the Company has duly authorized the execution and delivery of this First Supplemental Indenture;

WHEREAS , the Company desires to establish the form and terms of the Notes;

WHEREAS , all things necessary to make this First Supplemental Indenture a legal and binding supplement to the Base Indenture in accordance with its terms and the terms of the Base Indenture have been done;

WHEREAS , the Form of Note, the certificate of authentication to be borne by each Note, the Form of Notice of Conversion, the Form of Fundamental Change Repurchase Notice and the Form of Assignment and Transfer to be borne by the Notes are to be substantially in the forms hereinafter provided; and

WHEREAS , all acts and things necessary to make the Notes, when executed by the Company and authenticated and delivered by the Trustee or a duly authorized authenticating agent, as in the Indenture provided, the valid, binding and legal obligations of the Company, and the Indenture a valid agreement according to its terms, have been done and performed, and the execution of the Indenture and the issuance hereunder of the Notes have in all respects been duly authorized;

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NOW, THEREFORE, THIS FIRST SUPPLEMENTAL INDENTURE WITNESSETH:

That in order to declare the terms and conditions upon which the Notes are, and are to be, authenticated, issued and delivered, and in consideration of the premises and of the purchase and acceptance of the Notes 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 Notes (except as otherwise provided below), as follows:

ARTICLE I

DEFINITIONS

Section 1.01 Scope . This First Supplemental Indenture constitutes a supplement to the Base Indenture and an integral part of the Indenture and shall be read together with the Base Indenture as though all the provisions thereof are contained in one instrument. Except as expressly amended by this First Supplemental Indenture, the terms and provisions of the Base Indenture shall remain in full force and effect. Notwithstanding the foregoing, this First Supplemental Indenture shall only apply to the Notes. For all purposes under the Base Indenture, the Notes shall constitute a single series, and with regard to any matter requiring the consent under the Base Indenture of Holders (as defined under the Base Indenture) of multiple series of Securities voting together as a single class, the consent of Holders of the Notes issued hereunder voting as a separate class shall also be required and the same threshold shall apply. With respect to the Notes, if the terms of the Base Indenture are inconsistent with the terms of this First Supplemental Indenture, the terms of this First Supplemental Indenture shall control.

Section 1.02 Definitions . For all purposes of this First Supplemental Indenture unless otherwise specified herein:

(a) all terms used in this First Supplemental Indenture that are not otherwise defined herein shall have the meanings they are given in the Base Indenture;

(b) the rules of construction stated in Section 1.04 of the Base Indenture shall apply to this First Supplemental Indenture;

(c) the words “herein,” “hereof,” “hereto,” “hereunder” and “this” and other words of similar import in this First Supplemental Indenture shall refer to this First Supplemental Indenture as a whole and not to the Base Indenture or any particular Article, Section or other subdivision of the Base Indenture or this First Supplemental Indenture; and

(d) Section 1.01 of the Base Indenture is amended and supplemented, solely with respect to the Notes, by inserting the following additional defined terms in their appropriate alphabetical positions and deleting any defined terms therein that are also defined in this Section 1.02.

“ Additional Interest ” means all amounts, if any, payable pursuant to Section 5.04.

“ Additional Shares ” has the meaning specified in Section 11.03(a).

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“ Base Indenture ” has the meaning specified in the first paragraph of the recitals of this First Supplemental Indenture.

“ Bid Solicitation Agent ” means the Person appointed by the Company to solicit bids for the Trading Price of the Notes in accordance with Section 11.01(b)(i). The Company shall initially act as the Bid Solicitation Agent.

“ Board of Directors ” has the meaning specified in the second paragraph of the recitals of this First Supplemental Indenture.

“ Business Day ” means, with respect to any Note, any day other than a Saturday, a Sunday or a day on which the Federal Reserve Bank of New York is authorized or required by law or executive order to close or be closed.

“ Cash Settlement ” has the meaning specified in Section 11.02(a).

“ close of business ” means 5:00 p.m. (New York City time).

“ Combination Settlement ” has the meaning specified in Section 11.02(a).

“ Common Equity ” of any Person means capital stock of such Person that is generally entitled (a) to vote in the election of directors of such Person or (b) if such Person is not a corporation, to vote or otherwise participate in the selection of the governing body, partners, managers or others that will control the management or policies of such Person.

“ Common Stock ” means the common stock of the Company, par value $0.01 per share, at the date of this First Supplemental Indenture, subject to Section 11.07.

“ Company ” shall have the meaning specified in the first paragraph of this First Supplemental Indenture, and subject to the provisions of Article X, shall include its successors and assigns.

“ Conversion Agent ” has the meaning specified in Section 4.01.

“ Conversion Date ” has the meaning specified in Section 11.02(c).

“ Conversion Obligation ” has the meaning specified in Section 11.01(a).

“ Conversion Price ” means as of any date, $1,000 divided by the Conversion Rate as of such date.

“ Conversion Rate ” has the meaning specified in Section 11.01(a).

“ Corporate Event ” has the meaning specified in Section 11.01(b)(iii).

“ Daily Conversion Value ” means, for each of the 25 consecutive Trading Days during the Observation Period, 4.0% of the product of (a) the Conversion Rate on such Trading Day and (b) the Daily VWAP on such Trading Day.

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“ Daily Measurement Value ” means the Specified Dollar Amount (if any), divided by 25.

“ Daily Settlement Amount ,” for each of the 25 consecutive Trading Days during the Observation Period, shall consist of:

(a) cash in an amount equal to the lesser of (i) the Daily Measurement Value and (ii) the Daily Conversion Value on such Trading Day; and

(b) if the Daily Conversion Value on such Trading Day exceeds the Daily Measurement Value, a number of shares of Common Stock equal to (i) the difference between the Daily Conversion Value and the Daily Measurement Value, divided by (ii) the Daily VWAP for such Trading Day.

“ Daily VWAP ” means, for each of the 25 consecutive Trading Days during the relevant Observation Period, the per share volume-weighted average price as displayed under the heading “Bloomberg VWAP” on Bloomberg page “OPK <equity> AQR” (or its equivalent successor if such page is not available) in respect of the period from the scheduled open of trading until the scheduled close of trading of the primary trading session on such Trading Day (or if such volume-weighted average price is unavailable, the market value of one share of the Common Stock on such Trading Day reasonably determined, using a volume-weighted average method, by a nationally recognized independent investment banking firm retained for this purpose by the Company). The “Daily VWAP” shall be determined without regard to after-hours trading or any other trading outside of the regular trading session trading hours.

“ Defaulted Amounts ” means any amounts on any Note (including, without limitation, the Redemption Price, the Fundamental Change Repurchase Price, principal and interest) that are payable but are not punctually paid or duly provided for.

“ Depositary ” means, with respect to each Global Note, the Person specified in Section 2.04(d) as the Depositary with respect to such Notes, until a successor shall have been appointed and become such pursuant to the applicable provisions of this First Supplemental Indenture, and thereafter, “Depositary” shall mean or include such successor.

“ Distributed Property ” has the meaning specified in Section 11.04(c).

“ DTC ” means The Depository Trust Company.

“ Effective Date ” has the meaning specified in Section 11.03(c); provided that, solely for purposes of Section 11.04, “Effective Date” means the first date on which shares of Common Stock trade on the applicable exchange or in the applicable market, regular way, reflecting the relevant share split or share combination, as applicable.

“ Event of Default ” has the meaning specified in Section 5.02.

“ Ex-Dividend Date ” means the first date on which shares of Common Stock trade on the applicable exchange or in the applicable market, regular way, without the right to receive the issuance, dividend or distribution in question, from the Company or, if applicable, from the seller of Common Stock on such exchange or market (in the form of due bills or otherwise) as determined by such exchange or market. For the avoidance of doubt, any alternative trading convention on the applicable exchange or market in respect of shares of Common Stock under a separate ticker symbol or CUSIP number will not be considered “regular way” for this purpose.

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“ First Supplemental Indenture ” has the meaning specified in the first paragraph of this First Supplemental Indenture.

“ Form of Assignment and Transfer ” means the “Form of Assignment and Transfer” attached as Attachment 3 to the Form of Note.

“ Form of Fundamental Change Repurchase Notice ” means the “Form of Fundamental Change Repurchase Notice” attached as Attachment 2 to the Form of Note.

“ Form of Note ” means the “Form of Note” attached hereto as Exhibit A.

“ Form of Notice of Conversion ” means the “Form of Notice of Conversion” attached as Attachment 1 to the Form of Note.

“ Fundamental Change ” shall be deemed to have occurred at the time after the Notes are originally issued if any of the following occurs:

(a) a “person” or “group” within the meaning of Section 13(d) of the Exchange Act, other than the Company, its wholly-owned subsidiaries and the employee benefit plans of the Company and its subsidiaries, and other than the Permitted Owners, has become the direct or indirect “beneficial owner,” as defined in Rule 13d-3 under the Exchange Act, of the Company’s Common Equity representing more than 50% of the voting power of the Company’s Common Equity or the Permitted Owners have (or any “group” within the meaning of Section 13(d) of the Exchange Act including any permitted owner has) become the direct or indirect “beneficial owners,” as defined in Rule 13d-3 under the Exchange Act, of the Company’s Common Equity representing more than 70% of the voting power of the Company’s Common Equity;

(b) the consummation of (A) any recapitalization, reclassification or change of the Common Stock (other than changes resulting from a subdivision, a combination or merely a change in par value) as a result of which the Common Stock would be converted into, or exchanged for, stock, other securities, other property or assets; (B) any share exchange, consolidation or merger of the Company pursuant to which the Common Stock will be converted into cash, securities or other property or assets; or (C) any sale, lease or other transfer in one transaction or a series of related transactions of all or substantially all of the consolidated assets of the Company and its Subsidiaries, taken as a whole, to any Person other than one or more of the Company’s Subsidiaries; provided , however , that neither (i) a transaction described in clause (B) in which the holders of all classes of the Company’s Common Equity immediately prior to such transaction own, directly or indirectly, more than 50% of all classes of Common Equity of the continuing or surviving corporation or transferee or the parent thereof immediately after such transaction in substantially the same proportions as such ownership immediately prior to such transaction nor (ii) any merger of the Company solely for the purpose of changing the Company’s jurisdiction of incorporation, that results in a reclassification, conversion or exchange of outstanding shares of Common Stock solely into shares of common stock of the surviving entity shall be a Fundamental Change pursuant to this clause (b);

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(c) the stockholders of the Company approve any plan or proposal for the liquidation or dissolution of the Company; or

(d) the Common Stock (or other common stock underlying the Notes) ceases to be listed or quoted on any of the New York Stock Exchange, the Nasdaq Global Select Market or the Nasdaq Global Market (or any of their respective successors);

provided , however , that a transaction or transactions described in clause (b) above shall not constitute a Fundamental Change if at least 90% of the consideration received or to be received by the common stockholders of the Company, excluding cash payments for fractional shares or pursuant to statutory appraisal rights, in connection with such transaction or transactions consists of shares of common stock or other Common Equity that are listed or quoted on any of the New York Stock Exchange, the Nasdaq Global Select Market or the Nasdaq Global Market (or any of their respective successors) or will be so listed or quoted when issued or exchanged in connection with such transaction or transactions and as a result of such transaction or transactions, the Notes become convertible into such consideration, excluding cash payments for fractional shares or pursuant to statutory appraisal rights (subject to the provisions of Section 11.02(a)). For purposes of this definition, any transaction that constitutes a Fundamental Change pursuant to both clause (a) and clause (b) of this definition (without giving effect to the proviso to clause (b)) shall be deemed a Fundamental Change solely under clause (b) of such definition (subject to the proviso to clause (b)).

If any transaction in which the Common Stock is replaced by the securities of another entity occurs, following the effective date of such transaction, references to the Company in this definition will instead be references to such other entity.

“ Fundamental Change Company Notice ” has the meaning specified in Section 12.01(c).

“ Fundamental Change Repurchase Date ” has the meaning specified in Section 12.01.

“ Fundamental Change Repurchase Notice ” has the meaning specified in Section 12.01(b)(i).

“ Fundamental Change Repurchase Price ” has the meaning specified in Section 12.01.

“ given ,” with respect to any notice to be given to a Holder pursuant to the Indenture, shall mean notice (x) in the case of a Global Note, given to the Depositary (or its designee) pursuant to the standing instructions from the Depositary or its designee, including by electronic mail in accordance with accepted practices or procedures at the Depositary or (y) in the case of a Physical Note, mailed to such Holder by first class mail, postage prepaid, at its address as it appears on the Note Register, in each case in accordance with Section 11.02 of the Base Indenture. Notice so “given” shall be deemed to include any notice to be “mailed” or “delivered,” as applicable, under this Indenture.

“ Global Note ” has the meaning specified in Section 2.04(c).

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“ Holder ,” as applied to any Note, or other similar terms (but excluding the term “beneficial holder,” “beneficial owner” or “owner of a beneficial interest” or terms of similar import), means any Person in whose name at the time a particular Note is registered on the Note Register.

“ Indenture ” has the meaning specified in the first paragraph of this First Supplemental Indenture.

“ Interest Payment Date ” means each February 15 and August 15 of each year, beginning on August 15, 2019.

“ Last Reported Sale Price ” of the Common Stock (or other security for which a closing sale price must be determined) on any date means the closing sale price per share (or if no closing sale price is reported, the average of the bid and ask prices or, if more than one in either case, the average of the average bid and the average ask prices) on that date as reported in composite transactions for the principal U.S. national or regional securities exchange on which the Common Stock (or such other security) is traded. If the Common Stock (or such other security) is not listed for trading on a U.S. national or regional securities exchange on the relevant date, the “Last Reported Sale Price” shall be the last quoted bid price for the Common Stock (or such other security) in the over-the-counter market on the relevant date as reported by OTC Markets Group Inc. or a similar organization. If the Common Stock (or such other security) is not so quoted, the “Last Reported Sale Price” shall be the average of the mid-point of the last bid and ask prices for the Common Stock (or such other security) on the relevant date from each of at least three nationally recognized independent investment banking firms selected by the Company for this purpose. The “Last Reported Sale Price” will be determined without regard to after-hours trading or any other trading outside of the regular trading session hours.

“ Make-Whole Fundamental Change ” means any transaction or event that constitutes a Fundamental Change (as defined above and determined after giving effect to any exceptions to or exclusions from such definition, but without regard to subclause (i) of the proviso in clause (b) of the definition thereof).

“ Market Disruption Event ” means, for purposes of determining amounts due upon conversion, (a) a failure by the primary U.S. national or regional securities exchange or market on which the Common Stock is listed or admitted for trading to open for trading during its regular trading session or (b) the occurrence or existence prior to 1:00 p.m., New York City time, on any Scheduled Trading Day for the Common Stock for more than one half-hour period in the aggregate during regular trading hours of any suspension or limitation imposed on trading (by reason of movements in price exceeding limits permitted by the relevant stock exchange or otherwise) in the Common Stock or in any options contracts or future contracts relating to the Common Stock.

“ Maturity Date ” means February 15, 2025.

“ Measurement Period ” has the meaning specified in Section 11.01(b)(i).

“ Merger Event ” has the meaning specified in Section 11.07(a).

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“ Note ” or “ Notes ” have the meaning specified in the third paragraph of the recitals of this First Supplemental Indenture.

“ Note Register ” means the register maintained by the Registrar with respect to the Notes in accordance with Section 2.03 of the Base Indenture.

“ Notes Custodian ” means the Trustee, as custodian for DTC, with respect to the Global Notes, or any successor entity thereto.

“ Notice of Conversion ” has the meaning specified in Section 11.02(b).

“ Notice of Redemption ” has the meaning specified in Section 13.03(a).

“ Observation Period ,” with respect to any Note surrendered for conversion, means: (i) subject to clause (ii), if the relevant Conversion Date occurs prior to November 15, 2024, the 25 consecutive Trading Day period beginning on, and including, the second Trading Day immediately succeeding such Conversion Date; (ii) if the relevant Conversion Date occurs on or after the date of issuance of a Notice of Redemption with respect to the Notes pursuant to Section 13.03 and prior to the relevant Redemption Date, the 25 consecutive Trading Days beginning on, and including, the 26th Scheduled Trading Day immediately preceding such Redemption Date; and (iii) subject to clause (ii), if the relevant Conversion Date occurs on or after November 15, 2024, the 25 consecutive Trading Days beginning on, and including, the 26th Scheduled Trading Day immediately preceding the Maturity Date.

“ open of business ” means 9:00 a.m. (New York City time).

“ Optional Redemption ” has the meaning specified in Section 13.02.

“ outstanding ,” when used with reference to Notes, shall, subject to the provisions of Section 7.05 of this First Supplemental Indenture, mean, as of any particular time, all Notes authenticated and delivered by the Trustee under the Indenture, except:

(a) Notes theretofore canceled by the Trustee or accepted by the Trustee for cancellation;

(b) Notes, or portions thereof, that have become due and payable and in respect of which monies 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);

(c) Notes that have been paid pursuant to Section 2.05 or Notes in lieu of which, or in substitution for which, other Notes shall have been authenticated and delivered pursuant to the terms of Section 2.05 unless proof satisfactory to the Trustee is presented that any such Notes are held by protected purchasers in due course;

(d) Notes converted pursuant to Article XI and required to be cancelled pursuant to Section 2.05;

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(e) Notes redeemed pursuant to Article XIII; and

(f) Notes repurchased pursuant to the penultimate sentence of Section 2.07 (subject to the caveat set forth in the last sentence of Section 2.07).

provided that (i) Section 2.08 of the Base Indenture shall not apply to the Notes and (ii) references in the Base Indenture to any “outstanding” Notes shall be deemed to refer to the foregoing definition of “outstanding.”

“ Permitted Owners ” means Phillip Frost, M.D. or entities directly or indirectly controlled by him or established for the benefit of him or his descendants or spouses or charities.

“ Physical Notes ” means permanent certificated Notes in registered form issued in denominations of $1,000 principal amount and integral multiples thereof.

“ Physical Settlement ” has the meaning specified in Section 11.02(a).

“ Predecessor Note ” of any particular Note means every previous Note evidencing all or a portion of the same debt as that evidenced by such particular Note; and, for the purposes of this definition, any Note authenticated and delivered under Section 2.05 in lieu of or in exchange for a mutilated, lost, destroyed or stolen Note shall be deemed to evidence the same debt as the mutilated, lost, destroyed or stolen Note that it replaces.

“ Preliminary Prospectus Supplement ” means the prospectus supplement, dated February 4, 2019, relating to the offering and sale of the Notes.

“ Record Date ” means, with respect to any dividend, distribution or other transaction or event in which the holders of Common Stock (or other applicable security) have the right to receive any cash, securities or other property or in which the Common Stock (or such other security) is exchanged for or converted into any combination of cash, securities or other property, the date fixed for determination of holders of the Common Stock (or such other security) entitled to receive such cash, securities or other property (whether such date is fixed by the Board of Directors, by statute, by contract or otherwise).

“ Redemption Date ” has the meaning specified in Section 13.03(a).

“ Redemption Price ” means, for any Notes to be redeemed pursuant to Section 13.02, 100% of the principal amount of such Notes, plus accrued and unpaid interest, if any, to, but excluding, the Redemption Date (unless the Redemption Date falls after a Regular Record Date but on or prior to the immediately succeeding Interest Payment Date, in which case interest accrued to the Interest Payment Date will be paid to Holders of record of such Notes at the close of business on such Regular Record Date, and the Redemption Price will be equal to 100% of the principal amount of such Notes).

“ Reference Property ” has the meaning specified in Section 11.07(a).

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“ Regular Record Date ,” with respect to any Interest Payment Date, means the February 1 or August 1 (whether or not such day is a Business Day) immediately preceding the applicable February 15 or August 15 Interest Payment Date, respectively.

“ Rule 144 ” means Rule 144 as promulgated under the Securities Act.

“ Scheduled Trading Day ” means a day that is scheduled to be a Trading Day on the principal U.S. national or regional securities exchange or market on which the Common Stock is listed or admitted for trading. If the Common Stock is not so listed or admitted for trading, “Scheduled Trading Day” means a Business Day.

“ Securities ” has the meaning specified in the first paragraph of this First Supplemental Indenture.

“ Securities Act ” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

“ Settlement Amount ” has the meaning specified in Section 11.02(a)(iv).

“ Settlement Method ” means, with respect to any conversion of Notes, Physical Settlement, Cash Settlement or Combination Settlement, as elected (or deemed to have been elected) by the Company.

“ Settlement Notice ” has the meaning specified in Section 11.02(a)(iii).

“ Significant Subsidiary ” means a Subsidiary of the Company that meets the definition of “significant subsidiary” in Article 1, Rule 1-02(w) of Regulation S-X under the Exchange Act.

“ Specified Dollar Amount ” means the maximum cash amount per $1,000 principal amount of Notes to be received upon conversion as specified (or deemed specified) in the Settlement Notice related to any converted Notes.

“ Spin-Off ” has the meaning specified in Section 11.04(c).

“ Stock Price ” has the meaning specified in Section 11.03(c).

“ Successor Company ” has the meaning specified in Section 10.02(a).

“ Trading Day ” means a day on which (i) trading in the Common Stock (or other security for which a closing sale price must be determined) generally occurs on the Nasdaq Global Select Market or, if the Common Stock (or other such security) is not then listed on the Nasdaq Global Select Market, on the principal other U.S. national or regional securities exchange on which the Common Stock (or such other security) is then listed or, if the Common Stock (or such other security) is not then listed on a U.S. national or regional securities exchange, on the principal other market on which the Common Stock (or such other security) is then traded and (ii) a Last Reported Sale Price for the Common Stock (or closing sale price for such other security) is available on such securities exchange or market; provided that if the Common Stock (or such other security) is not so listed or traded, “Trading Day” means a Business Day; and provided ,

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further , that for purposes of determining amounts due upon conversion only, “Trading Day” means a day on which (x) there is no Market Disruption Event and (y) trading in the Common Stock generally occurs on the Nasdaq Global Select Market or, if the Common Stock is not then listed on the Nasdaq Global Select Market, on the principal other U.S. national or regional securities exchange on which the Common Stock is then listed or, if the Common Stock is not then listed on a U.S. national or regional securities exchange, on the principal other market on which the Common Stock is then listed or admitted for trading, except that if the Common Stock is not so listed or admitted for trading, “Trading Day” means a Business Day.

“ Trading Price ” of the Notes on any date of determination means the average of the secondary market bid quotations obtained by the Bid Solicitation Agent for $2,000,000 principal amount of Notes at approximately 3:30 p.m., New York City time, on such determination date from three independent nationally recognized securities dealers the Company selects for this purpose; provided that if three such bids cannot reasonably be obtained by the Bid Solicitation Agent but two such bids are obtained, then the average of such two bids shall be used, and if only one such bid can reasonably be obtained by the Bid Solicitation Agent, that one bid shall be used. If, on any date, the Bid Solicitation Agent cannot reasonably obtain at least one bid for $2,000,000 principal amount of Notes on such date from a nationally recognized securities dealer on any determination date, then the Trading Price per $1,000 principal amount of Notes on such determination date shall be deemed to be less than 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate.

“ Trustee ” shall have the meaning specified in the first paragraph of this First Supplemental Indenture, and subject to the provisions of Article 7 of the Base Indenture, shall include its successors.

“ unit of Reference Property ” has the meaning specified in Section 11.07(a).

“ Valuation Period ” has the meaning specified in Section 11.04(c).

Section 1.03 References to Interest . Unless the context otherwise requires, any reference to interest on, or in respect of, any Note in the Indenture shall be deemed to include Additional Interest if, in such context, Additional Interest is, was or would be payable pursuant to Section 5.04. Unless the context otherwise requires, any express mention of Additional Interest in any provision hereof shall not be construed as excluding Additional Interest in those provisions hereof where such express mention is not made.

ARTICLE II

ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES

Section 2.01 Designation and Amount . The Notes are hereby created and authorized as a single series of Securities under the Indenture. The Notes shall be designated as the “4.50% Convertible Senior Notes due 2025.” The aggregate principal amount of Notes that may be authenticated and delivered under the Indenture is initially limited to $200,000,000 (or $230,000,000 if the underwriter’s overallotment option is exercised in full), subject to Section 2.07 and except for Notes authenticated and delivered upon registration or transfer of, or in exchange for, or in lieu of other Notes pursuant to Section 2.06, Section 2.07, Section 2.09 and Section 9.04 of the Base Indenture as amended, in each case as applicable, by this First Supplemental Indenture and to the extent expressly permitted hereunder.

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Section 2.02 Form of Notes . The Notes and the Trustee’s certificate of authentication to be borne by such Notes shall be substantially in the respective forms set forth in Exhibit A, the terms and provisions of which shall constitute, and are hereby expressly incorporated in and made a part of the Indenture. To the extent applicable, the Company and the Trustee, by their execution and delivery of this First Supplemental Indenture, expressly agree to such terms and provisions and to be bound thereby.

Any Global Note may be endorsed with or have incorporated in the text thereof such legends or recitals or changes not inconsistent with the provisions of the Indenture as may be required by the Trustee, the Notes Custodian (at the direction of the Trustee) or the Depositary, or as may be required to comply with any applicable law or any regulation thereunder or with the rules and regulations of any securities exchange or automated quotation system upon which the Notes may be listed or traded or designated for issuance or to conform with any usage with respect thereto, or to indicate any special limitations or restrictions to which any particular Notes are subject.

Any of the Notes may have such letters, numbers or other marks of identification and such notations, legends or endorsements as the Officers executing the same may approve (execution thereof to be conclusive evidence of such approval) and as are not inconsistent with the provisions of the Indenture, or as may be required to comply with any law or with any rule or regulation made pursuant thereto or with any rule or regulation of any securities exchange or automated quotation system on which the Notes may be listed or designated for issuance, or to conform to usage or to indicate any special limitations or restrictions to which any particular Notes are subject.

Each Global Note shall represent such principal amount of the outstanding Notes as shall be specified therein and shall provide that it shall represent the aggregate principal amount of outstanding Notes from time to time endorsed thereon and that the aggregate principal amount of outstanding Notes represented thereby may from time to time be increased or reduced to reflect repurchases, cancellations, conversions, transfers or exchanges permitted hereby. Any endorsement of a Global Note to reflect the amount of any increase or decrease in the amount of outstanding Notes represented thereby shall be made by the Trustee or the Notes Custodian, at the direction of the Trustee, in such manner and upon written instructions given by the Holder of such Notes in accordance with the Indenture. Payment of principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, a Global Note shall be made to the Holder of such Note on the date of payment, unless a record date or other means of determining Holders eligible to receive payment is provided for herein.

Section 2.03 Date and Denomination of Notes; Payments of Interest and Defaulted Amounts . (a) The Notes shall be issuable in registered form without coupons in denominations of $1,000 principal amount and integral multiples thereof. Each Note shall be dated the date of its authentication and shall bear interest from the date specified on the face of the form of such Note. Accrued interest on the Notes shall be computed on the basis of a 360-day year composed of twelve 30-day months and, for partial months, on the basis of actual days elapsed over a 30-day month.

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(b) The Person in whose name any Note (or its Predecessor Note) is registered on the Note Register at the close of business on any Regular Record Date with respect to any Interest Payment Date shall be entitled to receive the interest payable on such Interest Payment Date. Interest shall be payable at the office or agency of the Company maintained by the Company for such purposes in the continental United States of America, which shall initially be the Corporate Trust Office, or any other office or agency located in the continental United States of America so designated by the Trustee. The Company shall pay interest (i) on any Physical Notes (A) to Holders holding Physical Notes having an aggregate principal amount of $1,000,000 or less, by check mailed to the Holders of these Notes at their address as it appears in the Note Register and (B) to Holders holding Physical Notes having an aggregate principal amount of more than $1,000,000, either by check mailed to such Holders or, upon application by such a Holder to the Trustee not later than the relevant Regular Record Date, by wire transfer in immediately available funds to that Holder’s account within the United States, if such Holder has provided the Company, the Trustee or the Paying Agent (if other than the Trustee) with the requisite information necessary to make such wire transfer, which application shall remain in effect until the Holder notifies, in writing, the Trustee to the contrary or (ii) on any Global Note by wire transfer of immediately available funds to the account of the Depositary or its nominee.

(c) Section 2.11 of the Base Indenture shall not apply to the Notes. Any Defaulted Amounts shall forthwith cease to be payable to the Holder on the relevant payment date but shall accrue interest per annum at the rate borne by the Notes, subject to the enforceability thereof under applicable law, from, and including, such relevant payment date, and such Defaulted Amounts together with such interest thereon shall be paid by the Company, at its election in each case, as provided in clause (i) or (ii) below:

(i) The Company may elect to make payment of any Defaulted Amounts to the Persons in whose names the Notes (or their respective Predecessor Notes) are registered at the close of business on a special record date for the payment of such Defaulted Amounts, which shall be fixed in the following manner. The Company shall notify the Trustee in writing of the amount of the Defaulted Amounts proposed to be paid on each Note and the date of the proposed payment (which shall be not less than 25 days after the receipt by the Trustee of such notice, unless the Trustee shall consent in writing to an earlier date), and at the same time the Company shall deposit with the Trustee an amount of money equal to the aggregate amount to be paid in respect of such Defaulted Amounts or shall make arrangements satisfactory to the Trustee for such deposit on or 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 Amounts as in this clause provided. Thereupon the Company shall fix a special record date for the payment of such Defaulted Amounts which shall be not more than 15 days and not less than 10 days prior to the date of the proposed payment, and not less than 10 days (unless the Trustee shall consent in writing to an earlier date) after the receipt by the Trustee of the notice of the proposed payment. The Company shall promptly notify the Trustee in writing of such special record date and the Trustee, in the name and at the expense of the Company, shall

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cause notice of the proposed payment of such Defaulted Amounts and the special record date therefor to be delivered to each Holder at its address as it appears in the Note Register, or by electronic means to the Depositary in the case of Global Notes not less than 10 days prior to such special record date. Notice of the proposed payment of such Defaulted Amounts and the special record date therefor having been so delivered, such Defaulted Amounts shall be paid to the Persons in whose names the Notes (or their respective Predecessor Notes) are registered at the close of business on such special record date and shall no longer be payable pursuant to the following clause (ii) of this Section 2.03(c).

(ii) The Company may make payment of any Defaulted Amounts in any other lawful manner not inconsistent with the requirements of any securities exchange or automated quotation system on which the Notes may be listed or designated for issuance, and upon such notice as may be required by such exchange or automated quotation system, if, after written notice given by the Company to the Trustee of the proposed payment pursuant to this clause, such manner of payment shall be deemed practicable by the Trustee.

Section 2.04 Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary . (a) The last sentence of the first paragraph of Section 2.06 of the Base Indenture and the second paragraph of Section 2.06 of the Base Indenture shall not apply to the Notes.

(b) No service charge shall be imposed by the Company, the Trustee, the Registrar, any co-Registrar or any Paying Agent for any exchange or registration of transfer of Notes, but the Company or the Trustee may require a Holder to pay a sum sufficient to cover any documentary, stamp or similar issue or transfer tax or other similar governmental charge required by law or permitted pursuant to Section 11.02(d) or Section 11.02(e).

Notwithstanding anything to the contrary in the Indenture, none of the Company, the Trustee, the Registrar or any co-Registrar shall be required to exchange or register a transfer of (i) any Notes selected for redemption in accordance with Article XIII, (ii) any Notes surrendered for conversion or, if a portion of any Note is surrendered for conversion, such portion thereof surrendered for conversion or (iii) any Notes, or a portion of any Note, surrendered for repurchase (and not withdrawn) in accordance with Article XII.

(c) So long as the Notes are eligible for book-entry settlement with the Depositary, unless otherwise required by law, subject to the third paragraph of Section 2.04(d), all Notes shall be represented by one or more Notes in global form (each, a “ Global Note ”) registered in the name of the Depositary or a nominee of the Depositary. The transfer and exchange of beneficial interests in a Global Note that does not involve the issuance of a Physical Note shall be effected through the Depositary (but not the Trustee or the Notes Custodian) in accordance with the Indenture (including the restrictions on transfer set forth herein) and the procedures of the Depositary therefor.

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(d) Notwithstanding any other provisions of the Indenture (other than the provisions set forth in this Section 2.04(d)), a Global Note may not be transferred as a whole or in part except (i) by the Depositary to a nominee of the Depositary or by a nominee of the Depositary to the Depositary or another nominee of the Depositary or by the Depositary or any such nominee to a successor Depositary or a nominee of such successor Depositary and (ii) for transfers of portions of a Global Note in certificated form made upon request of a member of, or a participant in, the Depositary (for itself or on behalf of a beneficial owner) by written notice given to the Trustee by or on behalf of the Depositary in accordance with customary procedures of the Depositary and in compliance with this Section 2.04(d).

The Company initially appoints DTC to act as Depositary with respect to each Global Note. Initially, each Global Note shall be issued to the Depositary, registered in the name of Cede & Co., as the nominee of the Depositary, and deposited with the Trustee as custodian for Cede & Co.

Section 2.13(b) of the Base Indenture shall not apply to the Notes. If (i) the Depositary notifies the Company at any time that the Depositary is unwilling or unable to continue as depositary for the Global Notes and a successor depositary is not appointed within 90 days, (ii) the Depositary ceases to be registered as a clearing agency under the Exchange Act and a successor depositary is not appointed within 90 days or (iii) an Event of Default with respect to the Notes has occurred and is continuing and a beneficial owner of any Note requests that its beneficial interest therein be issued as a Physical Note, the Company shall execute, and the Trustee, upon receipt of an Officers’ Certificate and a Company Order for the authentication and delivery of Notes, shall authenticate and deliver (x) in the case of clause (iii), a Physical Note to such beneficial owner in a principal amount equal to the principal amount of such Note corresponding such beneficial owner’s beneficial interest and (y) in the case of clause (i) or (ii), Physical Notes to each beneficial owner of the related Global Notes (or a portion thereof) in an aggregate principal amount equal to the aggregate principal amount of such Global Notes in exchange for such Global Notes, and upon delivery of the Global Notes to the Trustee such Global Notes shall be canceled.

Physical Notes issued in exchange for all or a part of the Global Note pursuant to this Section 2.04(d) shall be registered in such names and in such authorized denominations as the Depositary, pursuant to instructions from its direct or indirect participants or otherwise, shall instruct the Trustee. Upon execution and authentication, the Trustee shall deliver such Physical Notes to the Persons in whose names such Physical Notes are so registered.

At such time as all interests in a Global Note have been converted, canceled, repurchased or transferred, such Global Note shall be, upon receipt thereof, canceled by the Trustee in accordance with standing procedures and existing instructions between the Depositary and the Notes Custodian. At any time prior to such cancellation, if any interest in a Global Note is exchanged for Physical Notes, converted, canceled, repurchased or transferred to a transferee who receives Physical Notes therefor or any Physical Note is exchanged or transferred for part of such Global Note, the principal amount of such Global Note shall, in accordance with standing procedures and existing instructions between the Depositary and the Notes Custodian, be appropriately reduced or increased, as the case may be, and an endorsement shall be made on the Schedule of Exchanges of such Global Note, by the Trustee or the Notes Custodian, at the direction of the Trustee, to reflect such reduction or increase.

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Neither the Company, the Trustee nor any agent of the Company or the Trustee shall have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests of a Global Note or maintaining, supervising or reviewing any records relating to such beneficial ownership interests.

(e) Any Note or Common Stock issued upon the conversion or exchange of a Note that is repurchased or owned by any of the Company’s “affiliates” (as defined in Rule 144) may not be resold by such affiliate unless registered under the Securities Act or resold pursuant to an exemption from the registration requirements of the Securities Act in a transaction that results in such Note or Common Stock, as the case may be, no longer being a “restricted security” under Rule 144 that have been reacquired by any of them. The Company will cause any Note that is repurchased or owned by the Company to be surrendered to the Trustee for cancellation as described in Section 2.06.

Section 2.05 Mutilated, Destroyed, Lost or Stolen Notes . No service charge shall be imposed by the Company, the Trustee, the Registrar or any co-Registrar for any exchange or registration of transfer of any substitute Note, but, upon the issuance of any replacement Note as provided in Section 2.07 of the Base Indenture, the Company or the Trustee (i) may require an indemnity bond to be furnished which is sufficient in the judgment of the Company and the Trustee to protect the Company, the Trustee and any Agent from any loss which any of them may suffer if a Security is replaced and (ii) may charge such Holder for its expenses in replacing a Security. In case any Note that has matured or is about to mature or has been surrendered for required repurchase or is about to be converted in accordance with Article XI shall become mutilated or be destroyed, lost or stolen, the Company may, in its sole discretion, instead of issuing a substitute Note, pay or authorize the payment of or convert or authorize the conversion of the same (without surrender thereof except in the case of a mutilated Note), as the case may be, if the applicant for such payment or conversion shall furnish to the Company, to the Trustee and, if applicable, to such authenticating agent such security or indemnity as may be required by them to save each of them harmless for any loss, liability, cost or expense caused by or connected with such substitution, and, in every case of destruction, loss or theft, evidence satisfactory to the Company, the Trustee and, if applicable, any Paying Agent or Conversion Agent of the destruction, loss or theft of such Note and of the ownership thereof.

To the extent permitted by law, all Notes shall be held and owned upon the express condition that the foregoing provisions are exclusive with respect to the replacement or payment or conversion or repurchase of mutilated, destroyed, lost or stolen Notes 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 or conversion of negotiable instruments or other securities without their surrender.

Section 2.06 Cancellation of Notes Paid, Converted, etc . Section 2.10 of the Base Indenture is hereby amended with respect to the Notes by (i) replacing the first sentence thereof with the sentence: “The Company shall cause all Notes surrendered for the purpose of payment, repurchase, redemption, registration of transfer or exchange or conversion, if surrendered to the Company or the Company’s agents, Subsidiaries or Affiliates, to be surrendered to the Trustee for cancellation” and (ii) inserting at the end of the fourth sentence thereof the phrase “, except as expressly permitted by any of the provisions of the Indenture”.

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Section 2.07 Additional Notes; Repurchases . The Company may, without the consent of the Holders and notwithstanding Section 2.01, reopen this First Supplemental Indenture and issue additional Notes hereunder with the same terms as the Notes initially issued hereunder (other than differences in the issue price and interest accrued prior to the issue date of such additional Notes) in an unlimited aggregate principal amount; provided that if any such additional Notes are not fungible with the Notes initially issued hereunder for U.S. federal income tax or securities law purposes, such additional Notes shall have one or more separate CUSIP numbers. Prior to the issuance of any such additional Notes, the Company shall deliver to the Trustee a Company Order, an Officers’ Certificate and an Opinion of Counsel, such Officers’ Certificate and Opinion of Counsel to cover such matters required by Section 11.04 of the Base Indenture, and such Opinion of Counsel to include a customary legal opinion as to the enforceability under New York law of such additional Notes, which opinion may contain customary exceptions and qualifications. In addition, the Company may, to the extent permitted by law, and without the consent of Holders, directly or indirectly (regardless of whether such Notes are surrendered to the Company), repurchase Notes in the open market or otherwise, whether by the Company or its Subsidiaries or through a private or public tender or exchange offer or through counterparties to private agreements, including by cash-settled swaps or other derivatives. The Company shall cause any Notes so repurchased (other than Notes repurchased pursuant to cash-settled swaps or other derivatives) to be surrendered to the Trustee for cancellation in accordance with Section 2.06, and they will no longer be considered “outstanding” under this Supplemental Indenture upon their repurchase.

ARTICLE III

SATISFACTION AND DISCHARGE

Section 3.01 Applicability of Article 8 of the Base Indenture . Article 8 of the Base Indenture shall not apply to the Notes. Instead, the satisfaction and discharge provisions set forth in this Article III shall, with respect to the Notes, supersede in their entirety such Article 8 of the Base Indenture, and all references in the Base Indenture to such Article 8 or any sections thereof and satisfaction and discharge provisions therein, as the case may be, shall, with respect to the Notes, be deemed to be references to this Article III and the satisfaction and discharge provisions set forth in this Article III.

Section 3.02 Satisfaction and Discharge . This First Supplemental Indenture (and the Base Indenture with respect to the Notes) and the Notes shall, upon written request of the Company contained in an Officers’ Certificate cease to be of further effect, and the Trustee, at the expense and written request of the Company, shall execute such instruments reasonably requested by the Company acknowledging satisfaction and discharge of the Indenture and the Notes, when (a) (i) all Notes theretofore authenticated and delivered (other than (x) Notes which have been destroyed, lost or stolen and which have been replaced or paid as provided in Section 2.07 of the Base Indenture (as amended by Section 2.05 of this First Supplemental Indenture) and (y) Notes for whose payment money has theretofore been irrevocably deposited in trust or segregated and held in trust by the Company and thereafter repaid to the Company or discharged from such trust, as provided in Section 4.03(e)) have been delivered to the Trustee for cancellation; or (ii) the Company has deposited with the Trustee or delivered to Holders, as applicable, after the Notes have become due and payable, whether at the Maturity Date, any

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Redemption Date, any Fundamental Change Repurchase Date, upon conversion or otherwise, cash or cash, shares of Common Stock or a combination thereof, as applicable, solely to satisfy the Company’s Conversion Obligation, sufficient to pay all of the outstanding Notes and all other sums due and payable under the Indenture by the Company; and (b) the Company has delivered to the Trustee 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 First Supplemental Indenture (and the Base Indenture with respect to the Notes) and the Notes have been complied with. Notwithstanding the satisfaction and discharge of this First Supplemental Indenture (and the Base Indenture with respect to the Notes) and the Notes, the obligations of the Company to the Trustee under Section 7.07 of the Base Indenture shall survive.

ARTICLE IV

PARTICULAR COVENANTS OF THE COMPANY

Section 4.01 Maintenance of Office or Agency . (a) Pursuant to Section 2.01, 2.02 and Section 2.03 of the Base Indenture, the Company hereby initially designates the Trustee as the Paying Agent, Registrar, authentication agent, Notes Custodian and Conversion Agent (in such capacity, the “ Conversion Agent ”) for the Notes and the Corporate Trust Office as the office or agency where Notes may be presented or surrendered for payment, where Notes may be surrendered for registration of transfer or exchange and where notices and demands to or upon the Company in respect of the Notes and the Indenture may be served.

The Company may also from time to time designate one or more other additional conversion agents and may from time to time rescind such designations; provided that the Company shall at all times maintain a Conversion Agent for the Notes. The term “Conversion Agent” includes any such additional or other offices or agencies, as applicable.

(b) The definition of the term “Agent” in Section 1.01 of the Base Indenture is hereby amended, with respect to the Notes, by replacing the phrase “Registrar, Paying Agent, authenticating agent, or co-Registrar” with “Registrar, Paying Agent, additional paying agent, Conversion Agent, additional conversion agent, authenticating agent or co-Registrar.”

Section 4.02 Appointments to Fill Vacancies in Trustee ’ s Office . The Company, whenever necessary to avoid or fill a vacancy in the office of Trustee, will appoint, in the manner provided in Section 7.08 of the Base Indenture, a Trustee, so that there shall at all times be a Trustee hereunder.

Section 4.03 Provisions as to Paying Agent . (a) Section 2.04 of the Base Indenture shall not apply to the Notes.

(b) If the Company shall appoint a Paying Agent other than the Trustee, the Company 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 provisions of this Section 4.03:

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(i) that it will hold all sums held by it as such agent for the payment of the principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes in trust for the benefit of the Holders of the Notes;

(ii) that it will give the Trustee prompt written notice of any failure by the Company to make any payment of the principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes when the same shall be due and payable;

(iii) that at any time during the continuance of an Event of Default, upon request of the Trustee, it will forthwith pay to the Trustee all sums so held in trust; and

(iv) that upon an Event of Default pursuant to Section 5.02(i) or Section 5.02(j), the Trustee shall automatically be the Paying Agent.

The Company shall, on or before each due date of the principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) of, or accrued and unpaid interest on, the Notes, deposit with the Paying Agent a sum sufficient to pay such principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) or accrued and unpaid interest, and (unless such Paying Agent is the Trustee) the Company will promptly notify the Trustee in writing of any failure to take such action; provided that if such deposit is made on the due date, such deposit must be received by the Paying Agent by 11:00 a.m., New York City time, on such date.

(c) If the Company shall act as its own Paying Agent, it will, on or before each due date of the principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes, set aside, segregate and hold in trust for the benefit of the Holders of the Notes a sum sufficient to pay such principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) and accrued and unpaid interest so becoming due and will promptly notify the Trustee in writing of any failure to take such action and of any failure by the Company to make any payment of the principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) of, or accrued and unpaid interest on, the Notes when the same shall become due and payable.

(d) Anything in this Section 4.03 to the contrary notwithstanding, the Company may, at any time, for the purpose of obtaining a satisfaction and discharge of this First Supplemental Indenture, or for any other reason, pay, cause to be paid or deliver to the Trustee all sums or amounts held in trust by the Company or any Paying Agent hereunder as required by this Section 4.03, such sums or amounts to be held by the Trustee upon the trusts herein contained and upon such payment or delivery by the Company or any Paying Agent to the Trustee, the Company or such Paying Agent shall be released from all further liability but only with respect to such sums or amounts.

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(e) The first paragraph and the third paragraph of Section 8.06 of the Base Indenture shall not apply to the Notes. All references in the Base Indenture to such Section 8.06 shall, with respect to the Notes, be deemed to be references to such Section 8.06 as amended and supplemented by this Section 4.03(e). Subject to applicable abandoned property laws, any money and shares of Common Stock deposited with the Trustee or any Paying Agent, or then held by the Company, in trust for the payment of the principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) of, accrued and unpaid interest on and the consideration due upon conversion of, any Note and remaining unclaimed for two years after such principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) or interest has become due and payable shall be paid to the Company on request of the Company contained in an Officers’ Certificate, or (if then held by the Company) shall be discharged from such trust; and the Holder of such Note shall thereafter, as an unsecured general creditor, look only to the Company for payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money and shares of Common Stock, and all liability of the Company as trustee thereof, shall thereupon cease.

Section 4.04 Existence . Subject to Article X, the Company shall do or cause to be done all things necessary to preserve and keep in full force and effect its corporate existence.

Section 4.05 Annual Reports . (a) The Company shall file with the Trustee within 15 days after the same are required to be filed with the Commission (giving effect to any grace period provided by Rule 12b-25 or any successor rule under the Exchange Act or any similar or successor grace period), copies of any documents or reports that the Company is required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act (excluding any such information, documents or reports, or portions thereof, subject to confidential treatment and any correspondence with the Commission). Any such document or report that the Company files with the Commission via the Commission’s EDGAR system (or any successor thereto) shall be deemed to be filed with the Trustee for purposes of this Section 4.05(a) at the time such documents are filed via the EDGAR system (or any successor thereto), it being understood that the Trustee shall not be responsible for determining whether such filings have been made or the contents thereof.

(b) Delivery of the reports and documents described in subsection (a) above to the Trustee is for informational purposes only, and the Trustee’s receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to conclusively rely on an Officers’ Certificate).

Section 4.06 Compliance Certificate; Statements as to Defaults . Section 4.04 of the Base Indenture shall not apply to the Notes. Instead, the provisions of the immediately succeeding sentence shall, with respect to the Notes, supersede in its entirety such Section 4.04, and all references in the Base Indenture to such Section 4.04 shall instead be deemed to be references to the provisions of the immediately succeeding sentence. The Company shall deliver to the Trustee within 120 days after the end of each fiscal year of the Company (beginning with the fiscal year ending on December 31, 2019) an Officers’ Certificate stating whether or not the signers thereof have knowledge of any failure by the Company to comply with all conditions and covenants then required to be performed under this Indenture and, if so, specifying each such failure and the nature thereof.

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In addition, the Company shall deliver to the Trustee, as soon as possible, and in any event within 30 days after the Company becomes aware of the occurrence of any Event of Default or Default, an Officers’ Certificate setting forth the details of such Event of Default or Default, its status and the action that the Company is taking or proposing to take in respect thereof.

ARTICLE V

DEFAULTS AND REMEDIES

Section 5.01 Applicability of Article 6 of the Base Indenture . Section 6.01, Section 6.02, Section 6.03, Section 6.04, Section 6.06, Section 6.07, Section 6.10 and Section 6.11 of the Base Indenture shall not apply to the Notes. Instead, the Event of Default provisions set forth in this Article V shall, with respect to the Notes, supersede in their entirety Section 6.01, Section 6.02, Section 6.03, Section 6.04, Section 6.06, Section 6.07, Section 6.10 and Section 6.11 of the Base Indenture, and all references in the Base Indenture to such Sections and Event of Default provisions therein, as the case may be, shall, with respect to the Notes, be deemed to be references to the corresponding Sections of this Article V and the Event of Default provisions set forth therein.

Section 5.02 Events of Default . The following events shall be “Events of Default” with respect to the Notes:

(a) default in any payment of interest on any Note when due and payable, and the default continues for a period of 30 days;

(b) default in the payment of principal of any Note when due and payable on the Maturity Date, upon Optional Redemption, upon any required repurchase, upon declaration of acceleration or otherwise;

(c) failure by the Company to comply with its obligation to convert the Notes in accordance with the Indenture upon exercise of a Holder’s conversion right;

(d) failure by the Company to issue a Fundamental Change Company Notice in accordance with Section 12.01(c) or notice of a specified corporate event in accordance with Section 11.01(b)(ii) or Section 11.01(b)(iii), in each case, where such failure continues for three Business Days;

(e) failure by the Company to comply with its obligations under Article X;

(f) failure by the Company for 60 days after written notice from the Trustee or the Holders of at least 25% in principal amount of the Notes then outstanding has been received by the Company to comply with any of its other agreements contained in the Notes or the Indenture;

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(g) default by the Company or any Subsidiary of the Company with respect to any mortgage, agreement or other instrument under which there may be outstanding, or by which there may be secured or evidenced, any indebtedness for money borrowed in excess of $30,000,000 (or its foreign currency equivalent) in the aggregate of the Company and/or any such Subsidiary, whether such indebtedness now exists or shall hereafter be created (i) resulting in such indebtedness becoming or being declared due and payable prior to its stated maturity or (ii) constituting a failure to pay the principal of any such indebtedness when due and payable at its stated maturity, upon required repurchase, upon declaration of acceleration or otherwise, and in the cases of clauses (i) and (ii) such acceleration shall not, after the expiration of any applicable grace period, have been rescinded or annulled or such failure to pay shall not have been cured or waived, or such indebtedness shall not have been repaid, as the case may be, within 30 days;

(h) a final judgment for the payment of $30,000,000 or more (excluding any amounts covered by insurance) rendered against the Company or any of its Significant Subsidiaries, which judgment is not discharged or stayed within 60 days after (i) the date on which the right to appeal thereof has expired if no such appeal has commenced, or (ii) the date on which all rights to appeal have been extinguished;

(i) the Company or any Significant Subsidiary shall commence a voluntary case or other proceeding seeking liquidation, reorganization or other relief with respect to the Company or any such Significant Subsidiary or its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment of a trustee, receiver, liquidator, custodian or other similar official of the Company or any such Significant Subsidiary or any substantial part of its property, or shall consent to any such relief or to the appointment of or taking possession by any such official in an involuntary case or other proceeding commenced against it, or shall make a general assignment for the benefit of creditors, or shall fail generally to pay its debts as they become due; or

(j) an involuntary case or other proceeding shall be commenced against the Company or any Significant Subsidiary seeking liquidation, reorganization or other relief with respect to the Company or such Significant Subsidiary or its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment of a trustee, receiver, liquidator, custodian or other similar official of the Company or such Significant Subsidiary or any substantial part of its property, and such involuntary case or other proceeding shall remain undismissed and unstayed for a period of 30 consecutive days.

Section 5.03 Acceleration; Rescission and Annulment . In case one or more Events of Default shall have occurred and be continuing (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), then, and in each and every such case (other than an Event of Default specified in Section 5.02(i) or Section 5.02(j) with respect to the Company), unless the principal of all of the Notes shall have already become due and payable, either the Trustee or the Holders of at least 25% in aggregate principal amount of the Notes then outstanding determined in accordance with Section 7.05, by notice in writing to the Company (and to the Trustee if given by Holders), may declare 100% of the principal of, and accrued and

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unpaid interest on, all the Notes to be due and payable immediately, and upon any such declaration the same shall become and shall automatically be immediately due and payable, anything contained in the Indenture or in the Notes to the contrary notwithstanding. If an Event of Default specified in Section 5.02(i) or Section 5.02(j) with respect to the Company occurs and is continuing, 100% of the principal of, and accrued and unpaid interest, if any, on, all Notes shall become and shall automatically be immediately due and payable.

The immediately preceding paragraph, however, is subject to the conditions that if, at any time after the principal of the Notes shall have been so declared due and payable, and before any judgment or decree for the payment of the monies due shall have been obtained or entered as hereinafter provided, the Company shall pay or shall deposit with the Trustee a sum sufficient to pay installments of accrued and unpaid interest upon all Notes and the principal of any and all Notes that shall have become due otherwise than by acceleration (with interest on overdue installments of accrued and unpaid interest to the extent that payment of such interest is enforceable under applicable law, and on such principal at the rate borne by the Notes) and amounts due to the Trustee pursuant to Section 7.07 of the Base Indenture, and if (1) rescission would not conflict with any judgment or decree of a court of competent jurisdiction and (2) any and all existing Events of Default under the Indenture, other than any continuing defaults relating to the nonpayment of the principal of and accrued and unpaid interest, if any, on Notes or failure to deliver amounts due upon conversion, then and in every such case (except as provided in the immediately succeeding sentence) the Holders of a majority in aggregate principal amount of the Notes then outstanding, by written notice to the Company and to the Trustee, may waive all Defaults or Events of Default with respect to the Notes and rescind and annul such declaration and its consequences and such Default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured for every purpose of the Indenture; but no such waiver or rescission and annulment shall extend to or shall affect any subsequent Default or Event of Default, or shall impair any right consequent thereon. Notwithstanding anything to the contrary herein, no such waiver or rescission and annulment shall extend to or shall affect any Default or Event of Default resulting from (i) the nonpayment of the principal of, or accrued and unpaid interest on, any Notes or (ii) a failure to pay or deliver, as the case may be, the consideration due upon conversion of the Notes.

Section 5.04 Additional Interest in Lieu of Reporting Default . Notwithstanding anything in the Indenture or in the Notes to the contrary, to the extent the Company elects, the sole remedy for an Event of Default relating to (i) the Company’s failure to file with the Trustee pursuant to Section 314(a)(1) of the TIA any documents or reports that the Company is required to file with the Commission pursuant to Section 13 or Section 15(d) of the Exchange Act or (ii) the Company’s failure to comply with its obligations as set forth in Section 4.05(a) shall, for the first 360 days after the occurrence of such an Event of Default, consist exclusively of the right to receive Additional Interest on the Notes at a rate equal to 0.25% per annum of the principal amount of the Notes outstanding for each day during the 90 day period after the occurrence of such Event of Default and 0.50% per annum of the principal amount of the Notes outstanding beginning on and including the 91st day following the occurrence of such an Event of Default during which such Event of Default is continuing. If the Company so elects, such Additional Interest shall be payable in the same manner and on the same dates as regular interest on the Notes. On the 361st day after such Event of Default (if the Event of Default relating to the Company’s failure to comply with its obligations as set forth in Section 4.05(a) is not cured or

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waived prior to such 361st day), the Notes will be subject to acceleration as provided in Section 5.03. In the event the Company does not elect to pay Additional Interest following an Event of Default in accordance with this Section 5.04 or the Company elected to make such payment of Additional Interest in accordance with this Section 5.04 but does not pay the Additional Interest when due, the Notes shall be subject to acceleration as provided in Section 5.03.

In order to elect to pay Additional Interest as the sole remedy during the first 360 days after the occurrence of any Event of Default described in the immediately preceding paragraph, the Company must notify in writing all Holders of the Notes, the Trustee and the Paying Agent of such election prior to the beginning of such 360-day period. Upon the failure to timely give such notice, the Notes shall be immediately subject to acceleration as provided in Section 5.03.

In no event shall Additional Interest payable at the Company’s election for failure to comply with its reporting obligations pursuant to this Section 5.04 accrue at a rate in excess of 0.50% per annum, regardless of the number of events or circumstances giving rise to the requirement to pay such Additional Interest.

Section 5.05 Payments of Notes on Default; Suit Therefor . If an Event of Default described in clause (a) or (b) of Section 5.02 shall have occurred, the Company shall, upon demand of the Trustee, pay to the Trustee, for the benefit of the Holders of the Notes, the whole amount then due and payable on the Notes for principal and interest, if any, with interest on any overdue principal and interest, if any, at the rate borne by the Notes at such time, and, in addition thereto, such further amount as shall be sufficient to cover any amounts due to the Trustee under Section 7.07 of the Base Indenture. If the Company shall fail to pay such amounts forthwith upon such demand, the Trustee, in its own name and as trustee of an express trust, may institute a judicial proceeding for the collection of the sums so due and unpaid, may prosecute such proceeding to judgment or final decree and may enforce the same against the Company or any other obligor upon the Notes and collect the moneys adjudged or decreed to be payable in the manner provided by law out of the property of the Company or any other obligor upon the Notes, wherever situated.

All rights of action and of asserting claims under the Indenture, or under any of the Notes, may be enforced by the Trustee without the possession of any of the Notes, 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, after provision for the payment of the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, be for the ratable benefit of the Holders of the Notes.

In any proceedings brought by the Trustee (and in any proceedings involving the interpretation of any provision of the Indenture to which the Trustee shall be a party), the Trustee shall be held to represent all the Holders of the Notes, and it shall not be necessary to make any Holders of the Notes parties to any such proceedings.

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Section 5.06 Application of Monies Collected by Trustee . Any monies or property collected by the Trustee pursuant to this Article V with respect to the Notes shall be applied in the order following, at the date or dates fixed by the Trustee for the distribution of such monies or property, as the case may be, upon presentation of the several Notes, and stamping thereon the payment, if only partially paid, and upon surrender thereof, if fully paid:

First, to the payment of all amounts due the Trustee (in any of its capacities under the Indenture) under Section 6.02 of this First Supplemental Indenture and Section 7.07 of the Base Indenture;

Second, in case the principal of the outstanding Notes shall not have become due and be unpaid, to the payment of interest on, and any cash due upon conversion of, the Notes in default in the order of the date due of the payments of such interest and cash due upon conversion, as the case may be, with interest (to the extent that such interest has been collected by the Trustee) upon such overdue payments at the rate borne by the Notes at such time, such payments to be made ratably to the Persons entitled thereto;

Third, in case the principal of the outstanding Notes shall have become due, by declaration or otherwise, and be unpaid to the payment of the whole amount (including, if applicable, the payment of the Redemption Price, the Fundamental Change Repurchase Price and any cash due upon conversion) then owing and unpaid upon the Notes for principal and interest, if any, with interest on the overdue principal and, to the extent that such interest has been collected by the Trustee, upon overdue installments of interest at the rate borne by the Notes at such time, and in case such monies shall be insufficient to pay in full the whole amounts so due and unpaid upon the Notes, then to the payment of such principal (including, if applicable, the Redemption Price, the Fundamental Change Repurchase Price and the cash due upon conversion) and interest without preference or priority of principal over interest, or of interest over principal or of any installment of interest over any other installment of interest, or of any Note over any other Note, ratably to the aggregate of such principal (including, if applicable, the Redemption Price, the Fundamental Change Repurchase Price and any cash due upon conversion) and accrued and unpaid interest; and

Fourth, to the payment of the remainder, if any, to the Company.

Section 5.07 Proceedings by Holders . Except to enforce the right to receive payment of principal (including, if applicable, the Redemption Price and Fundamental Change Repurchase Price) or interest when due, or the right to receive payment or delivery of the consideration due upon conversion, no Holder of any Note shall have any right by virtue of or by availing of any provision of the Indenture to institute any suit, action or proceeding in equity or at law upon or under or with respect to the Indenture, or for the appointment of a receiver, trustee, liquidator, custodian or other similar official, or for any other remedy hereunder, unless:

(a) such Holder previously shall have given to the Trustee written notice of an Event of Default and of the continuance thereof, as herein provided;

(b) Holders of at least 25% in aggregate principal amount of the Notes then outstanding shall have made written request upon the Trustee to pursue such remedy hereunder;

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(c) such Holders shall have offered to the Trustee such security or indemnity satisfactory to it against any loss, liability or expense to be incurred therein or thereby;

(d) the Trustee for 60 days after its receipt of the request and offer of security or indemnity, had not complied with such request; and

(e) no direction that, in the opinion of the Trustee, is inconsistent with such written request shall have been given to the Trustee by the Holders of a majority of the aggregate principal amount of the Notes then outstanding within such 60-day period pursuant to Section 5.09,

it being understood and intended, and being expressly covenanted by the taker and Holder of every Note with every other taker and Holder and the Trustee that no one or more Holders shall have any right in any manner whatever by virtue of or by availing of any provision of the Indenture to affect, disturb or prejudice the rights of any other Holder, or to obtain or seek to obtain priority over or preference to any other such Holder, or to enforce any right under the Indenture, except in the manner herein provided and for the equal, ratable and common benefit of all Holders (except as otherwise provided herein). For the protection and enforcement of this Section 5.07, each and every Holder and the Trustee shall be entitled to such relief as can be given either at law or in equity.

Notwithstanding any other provision of the Indenture and any provision of any Note, the right of any Holder to receive payment or delivery, as the case may be, of (x) the principal (including the Redemption Price and Fundamental Change Repurchase Price, if applicable) of, (y) accrued and unpaid interest, if any, on, and (z) the consideration due upon conversion of, such Note, on or after the respective due dates expressed or provided for in such Note or in the Indenture, or to institute suit for the enforcement of any such payment or delivery, as the case may be, on or after such respective dates against the Company shall not be impaired or affected without the consent of such Holder.

Section 5.08 Remedies Cumulative and Continuing . Except as provided in the last paragraph of Section 2.05, all powers and remedies given by this Article V to the Trustee or to the Holders shall, to the extent permitted by law, be deemed cumulative and not exclusive of any thereof or of any other powers and remedies available to the Trustee or the Holders of the Notes, by judicial proceedings or otherwise, to enforce the performance or observance of the covenants and agreements contained in the Indenture, and no delay or omission of the Trustee or of any Holder of any of the Notes to exercise any right or power accruing upon any Default or Event of Default shall impair any such right or power, or shall be construed to be a waiver of any such Default or Event of Default or any acquiescence therein; and, subject to the provisions of Section 5.07, every power and remedy given by this Article V or by law to the Trustee or to the Holders may be exercised from time to time, and as often as shall be deemed expedient, by the Trustee or by the Holders.

Section 5.09 Direction of Proceedings and Waiver of Defaults by Majority of Holders . The Holders of a majority in aggregate principal amount of the Notes at the time outstanding determined in accordance with Section 7.05 may on behalf of the Holders of all of the Notes waive any past Default or Event of Default hereunder and its consequences except (i) a

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default in the payment of accrued and unpaid interest, if any, on, or the principal (including any Redemption Price and any Fundamental Change Repurchase Price) of, the Notes when due that has not been cured pursuant to the provisions of Section 5.02, (ii) a failure by the Company to pay or deliver, as the case may be, the consideration due upon conversion of the Notes or (iii) a default in respect of a covenant or provision hereof which under Article IX cannot be modified or amended without the consent of each Holder of an outstanding Note affected. Upon any such waiver the Company, the Trustee and the Holders of the Notes shall be restored to their former positions and rights hereunder, 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 5.09, said Default or Event of Default shall for all purposes of the Notes and the Indenture be deemed to have been cured and to be not continuing; but no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent thereon.

Section 5.10 Notice of Defaults . Section 7.05 of the Base Indenture is hereby amended with respect to the Notes by inserting immediately prior to the words “any such Security” in the second sentence thereof the phrase “, or a Default or Event of Default in the payment or delivery of the consideration due upon conversion in respect of,”.

Section 5.11 Undertaking to Pay Costs . All parties to this First Supplemental Indenture agree, and each Holder of any Note by its 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 the 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 that the provisions of this Section 5.11 (to the extent permitted by law) shall not apply to any suit instituted by the Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal amount of the Notes at the time outstanding determined in accordance with Section 7.05, or to any suit instituted by any Holder for the enforcement of the payment of the principal of or accrued and unpaid interest, if any, on any Note (including, but not limited to, the Fundamental Change Repurchase Price with respect to any Notes being repurchased as provided in the Indenture) on or after the due date expressed or provided for in such Note or to any suit for the enforcement of the right to convert any Note in accordance with the provisions of Article XI.

ARTICLE VI

CONCERNING THE TRUSTEE

Section 6.01 Amendment to the Base Indenture . Unless the context otherwise requires, all references in the Base Indenture to “money” shall be deemed, solely with respect to the Notes, to include Common Stock or other Reference Property underlying the Notes.

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Section 6.02 Concerning the Custodian, Registrar, Paying Agent, Conversion Agent, Bid Solicitation Agent . The rights and protections afforded to the Trustee pursuant to the Indenture shall also be afforded to the Notes Custodian, Registrar, Paying Agent, Conversion Agent, Bid Solicitation Agent or transfer agent, unless the Company is serving in such role.

ARTICLE VII

CONCERNING THE HOLDERS

Section 7.01 Applicability of Section  2.13(f) of the Base Indenture . Section 2.13(f) of the Base Indenture shall not apply to the Notes.

Section 7.02 Action by Holders . Whenever in the Indenture it is provided that the Holders of a specified percentage of the aggregate principal amount of the Notes 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 Holders in person or by agent or proxy appointed in writing, or (b) by the record of the Holders voting in favor thereof at any meeting of Holders 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 Holders. Whenever the Company or the Trustee solicits the taking of any action by the Holders of the Notes, the Company or the Trustee may, but shall not be required to, fix in advance of such solicitation, a date as the record date for determining Holders entitled to take such action. The record date if one is selected shall be not more than fifteen days prior to the date of commencement of solicitation of such action.

Section 7.03 Proof of Execution by Holders . Subject to the provisions of Section 7.01 of the Base Indenture, Section 7.02 of the Base Indenture and Section 8.06 of this First Supplemental Indenture, proof of the execution of any instrument by a Holder or its 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 holding of Notes shall be proved by the Note Register or by a certificate of the Registrar. The record of any Holders’ meeting shall be proved in the manner provided in Section 8.07.

Section 7.04 Who Are Deemed Absolute Owners . The Company, the Trustee, any authenticating agent, any Paying Agent, any Conversion Agent and any Registrar may deem the Person in whose name a Note shall be registered upon the Note Register to be, and may treat it as, the absolute owner of such Note (whether or not such Note shall be overdue and notwithstanding any notation of ownership or other writing thereon made by any Person other than the Company or any Registrar) for the purpose of receiving payment of or on account of the principal of and (subject to Section 2.03) accrued and unpaid interest on such Note, for conversion of such Note and for all other purposes under the Indenture; and neither the Company nor the Trustee nor any Paying Agent nor any Conversion Agent nor any Registrar shall be affected by any notice to the contrary. The sole registered holder of a Global Note shall be the Depositary or its nominee. All such payments or deliveries so made to any Holder for the time being, or upon its order, shall be valid, and, to the extent of the sums or shares of Common Stock so paid or delivered, effectual to satisfy and discharge the liability for monies payable or shares deliverable upon any such Note. Notwithstanding anything to the contrary in the Indenture or the

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Notes following an Event of Default, any owner of a beneficial interest in a Global Note may directly enforce against the Company, without the consent, solicitation, proxy, authorization or any other action of the Depositary or any other Person, such owner’s right to exchange such beneficial interest for a Note in certificated form in accordance with the provisions of the Indenture.

Section 7.05 Company-Owned Notes . In determining whether the Holders of the requisite aggregate principal amount of the Notes have concurred in any direction, consent, waiver or other action under the Indenture, any Notes that are owned by the Company, by any Subsidiary thereof or by any Person directly or indirectly controlling or controlled by or under direct or indirect common control with the Company or any Subsidiary thereof shall be disregarded and deemed not to be outstanding for the purpose of any such determination; provided that for the purposes of determining whether the Trustee shall be protected in relying on any such direction, consent, waiver or other action only Notes that a Trust Officer actually knows are so owned shall be so disregarded. Notes that have been pledged in good faith may be regarded as outstanding for the purposes of this Section 7.05 if the pledgee shall establish to the satisfaction of the Trustee the pledgee’s right to so act with respect to such Notes and that the pledgee is not the Company, a Subsidiary thereof or a Person directly or indirectly controlling or controlled by or under direct or indirect common control with the Company or a Subsidiary thereof. In the case of a dispute as to such right, any decision or indecision by the Trustee taken upon the advice of counsel shall be full protection to the Trustee. The Company shall furnish to the Trustee promptly an Officers’ Certificate listing and identifying all Notes, if any, known by the Company to be owned or held by or for the account of any of the above described Persons; and, subject to Section 7.01 of the Base Indenture, the Trustee shall be entitled to accept such Officers’ Certificate as conclusive evidence of the facts therein set forth and of the fact that all Notes not listed therein are outstanding for the purpose of any such determination.

Section 7.06 Revocation of Consents; Future Holders Bound . Section 9.03 of the Base Indenture shall not apply to the Notes. At any time prior to (but not after) the evidencing to the Trustee, as provided in Section 7.02, of the taking of any action by the Holders of the percentage of the aggregate principal amount of the Notes specified in the Indenture in connection with such action, any Holder of a Note that is shown by the evidence to be included in the Notes the Holders of which have consented to such action may, by filing written notice with the Trustee at its Corporate Trust Office and upon proof of holding as provided in Section 7.03, revoke such action so far as concerns such Note. Except as aforesaid, any such action taken by the Holder of any Note shall be conclusive and binding upon such Holder and upon all future Holders and owners of such Note and of any Notes issued in exchange or substitution therefor or upon registration of transfer thereof, irrespective of whether any notation in regard thereto is made upon such Note or any Note issued in exchange or substitution therefor or upon registration of transfer thereof.

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ARTICLE VIII

HOLDERS’ MEETINGS

Section 8.01 Applicability of Section  11.06 of the Base Indenture . Section 11.06 of the Base Indenture shall not apply to the Notes. Instead, the provisions set forth in this Article VIII shall, with respect to the Notes, supersede in its entirety Section 11.06 of the Base Indenture.

Section 8.02 Purpose of Meetings . A meeting of Holders 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 permitted under the Indenture, or to consent to the waiving of any Default or Event of Default hereunder (in each case, as permitted under the Indenture) and its consequences, or to take any other action authorized to be taken by Holders 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 7 of the Base Indenture;

(c) to consent to the execution of an indenture or indentures supplemental hereto pursuant to the provisions of Section 9.03; 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 the Notes under any other provision of the Indenture or under applicable law.

Section 8.03 Call of Meetings by Trustee . The Trustee may at any time call a meeting of Holders to take any action specified in Section 8.02, to be held at such time and at such place as the Trustee shall determine. Notice of every meeting of the Holders, setting forth the time and the place of such meeting and in general terms the action proposed to be taken at such meeting and the establishment of any record date pursuant to Section 7.02, shall be given to Holders of such Notes at their addresses as they shall appear on the Note Register. Such notice shall also be given to the Company. Such notices shall be given not less than 20 nor more than 90 days prior to the date fixed for the meeting.

Any meeting of Holders shall be valid without notice if the Holders of all Notes then outstanding are present in person or by proxy or if notice is waived before or after the meeting by the Holders of all Notes then outstanding, and if the Company and the Trustee are either present by duly authorized representatives or have, before or after the meeting, waived notice.

Section 8.04 Call of Meetings by Company or Holders . In case at any time the Company, pursuant to a resolution of the Board of Directors, or the Holders of at least 10% of the aggregate principal amount of the Notes then outstanding, shall have requested the Trustee to call a meeting of Holders, by written request setting forth in reasonable detail the action proposed to be taken at the meeting, and the Trustee shall not have given the notice of such meeting within 20 days after receipt of such request, then the Company or such Holders may determine the time and the place for such meeting and may call such meeting to take any action authorized in Section 8.02, by mailing notice thereof as provided in Section 8.03.

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Section 8.05 Qualifications for Voting . To be entitled to vote at any meeting of Holders a Person shall (a) be a Holder of one or more Notes on the record date pertaining to such meeting or (b) be a Person appointed by an instrument in writing as proxy by a Holder of one or more Notes on the record date pertaining to such meeting. The only Persons who shall be entitled to be present or to speak at any meeting of Holders 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 8.06 Regulations . Notwithstanding any other provisions of the Indenture, the Trustee may make such reasonable regulations as it may deem advisable for any meeting of Holders, in regard to proof of the holding of Notes 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.

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 Holders as provided in Section 8.04, in which case the Company or the Holders 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 vote of the Holders of a majority in aggregate principal amount of the Notes represented at the meeting and entitled to vote at the meeting.

Subject to the provisions of Section 7.05 of this First Supplemental Indenture, at any meeting of Holders each Holder or proxyholder shall be entitled to one vote for each $1,000 principal amount of Notes held or represented by him or her; provided , however , that no vote shall be cast or counted at any meeting in respect of any Note 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 Notes held by it or instruments in writing as aforesaid duly designating it as the proxy to vote on behalf of other Holders. Any meeting of Holders duly called pursuant to the provisions of Section 8.03 or Section 8.04 may be adjourned from time to time by the Holders of a majority of the aggregate principal amount of Notes represented at the meeting, whether or not constituting a quorum, and the meeting may be held as so adjourned without further notice.

Section 8.07 Voting . The vote upon any resolution submitted to any meeting of Holders shall be by written ballot on which shall be subscribed the signatures of the Holders or of their representatives by proxy and the outstanding aggregate principal amount of the Notes 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 duplicate of all votes cast at the meeting. A record in duplicate of the proceedings of each meeting of Holders 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 given as provided in Section 8.03. The record shall show the aggregate principal amount of the Notes 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.

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Any record so signed and verified shall be conclusive evidence of the matters therein stated.

Section 8.08 No Delay of Rights by Meeting . Nothing contained in this Article VIII shall be deemed or construed to authorize or permit, by reason of any call of a meeting of Holders or any rights expressly or impliedly conferred hereunder to make such call, any hindrance or delay in the exercise of any right or rights conferred upon or reserved to the Trustee or to the Holders under any of the provisions of the Indenture or of the Notes. Nothing contained in this Article VIII shall be deemed or construed to limit any Holder’s actions pursuant to the applicable procedures of the Depositary so long as the Notes are issued in global form.

ARTICLE IX

SUPPLEMENTAL INDENTURES

Section 9.01 Applicability of Article 9 of the Base Indenture . Section 9.01 and Section 9.02 of the Base Indenture shall not apply to the Notes. Instead, the provisions set forth in Section 9.02 and Section 9.03 shall, with respect to the Notes, supersede in their entirety Section 9.01 and Section 9.02 of the Base Indenture, and all references in the Base Indenture to such Sections and amendment and waiver provisions therein, as the case may be, shall, with respect to the Notes, be deemed to be references to Section 9.02 and Section 9.03, as applicable, and the supplemental indenture provisions set forth therein.

Section 9.02 Supplemental Indentures Without Consent of Holders . The Company, when authorized by the resolutions of the Board of Directors, and the Trustee, at the Company’s expense, may from time to time and at any time enter into an indenture or indentures supplemental hereto for one or more of the following purposes:

(a) to cure any ambiguity, omission, defect or inconsistency;

(b) to provide for the assumption by a Successor Company of the obligations of the Company under the Indenture pursuant to Article X;

(c) to add guarantees with respect to the Notes;

(d) to secure the Notes;

(e) to add to the covenants or Events of Default for the benefit of the Holders or surrender any right or power conferred upon the Company;

(f) to make any change that does not adversely affect the rights of any Holder;

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(g) to increase the Conversion Rate as provided in the Indenture;

(h) to provide for the acceptance of appointment by a successor Trustee pursuant to the provisions of Article 7 of the Base Indenture or to facilitate the administration of the trusts by more than one trustee;

(i) in connection with any Merger Event described in Section 11.07, to provide that the Notes are convertible into Reference Property, subject to the provisions described in Section 11.02, and to make certain related changes to the terms of the Notes to the extent expressly required by the Indenture;

(j) to comply with the rules of any applicable securities depositary in a manner that does not adversely affect the rights of any Holder;

(k) to make provisions with respect to conversion rights of the Holders required under the Indenture;

(l) to conform the provisions of the Indenture or the Notes to the “Description of Notes” in the Preliminary Prospectus Supplement, as supplemented by the issuer free writing prospectus related to the offering of the Notes filed by the Company with the Commission pursuant to Rule 433 under the Securities Act of 1933 on February 5, 2019; or

(m) to comply with any requirement of the Commission in connection with the qualification of the Indenture under the TIA.

With respect to clause (a) above, the supplemental indenture shall describe such conforming changes to the Indenture. The Company shall deliver an Officers’ Certificate to the Trustee that the Company is entering into such supplemental indenture to conform the Indenture to the “Description of Notes” in such Prospectus Supplement.

Any supplemental indenture authorized by the provisions of this Section 9.02 may be executed by the Company and the Trustee without the consent of the Holders of any of the Notes at the time outstanding, notwithstanding any of the provisions of Section 9.03.

Section 9.03 Supplemental Indentures with Consent of Holders . With the consent (evidenced as provided in Article VII) of the Holders of at least a majority of the aggregate principal amount of Notes then outstanding (determined in accordance with Article VII and including consents obtained in connection with a repurchase of, or tender or exchange offer for, Notes), the Company, when authorized by the resolutions of the Board of Directors, and the Trustee, at the Company’s expense, 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 the Indenture or any supplemental indenture or of modifying in any manner the rights of the Holders; provided , however , that, without the consent of each Holder of an outstanding Note affected, no such supplemental indenture shall:

(a) reduce the amount of Notes whose Holders must consent to an amendment;

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(b) reduce the rate of or extend the stated time for payment of interest on any Note;

(c) reduce the principal of or extend the Maturity Date of any Note

(d) except as required under the Indenture, make any change that adversely affects the conversion rights of any Notes;

(e) reduce the Redemption Price, the Fundamental Change Repurchase Price of any Note or amend or modify in any manner adverse to the Holders the Company’s obligation to make such payments, whether through an amendment or waiver of provisions in the covenants, definitions or otherwise;

(f) make any Note payable in money other than that stated in the Note;

(g) change the ranking of the Notes;

(h) impair the right of any Holder to receive payment of principal and interest on such Holder’s Notes on or after the due dates therefor or to institute suit for the enforcement of any payment on or with respect to such Holder’s Note; or

(i) make any change in this Article IX that requires each Holder’s consent or in the waiver provisions in Section 5.02 or Section 5.09.

Upon the written request of the Company, and upon the filing with the Trustee of evidence of the consent of Holders as aforesaid and subject to Section 9.05, the Trustee shall join with the Company in the execution of such supplemental indenture.

Holders do not need, under this Section 9.03, to approve the particular form of any proposed supplemental indenture. It shall be sufficient if such Holders approve the substance thereof. After any such supplemental indenture becomes effective, the Company shall deliver to the Holders (with a copy to the Trustee) a notice briefly describing such supplemental indenture. However, the failure to give such notice to all the Holders (with a copy to the Trustee), or any defect in the notice, will not impair or affect the validity of the supplemental indenture.

Section 9.04 Effect of Supplemental Indentures . Upon the execution of any supplemental indenture pursuant to the provisions of this Article IX, the Indenture shall be and be deemed to be modified and amended in accordance therewith and the respective rights, limitation of rights, obligations, duties and immunities under the Indenture of the Trustee, the Company and the Holders 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 the Indenture for any and all purposes.

Section 9.05 Evidence of Compliance of Supplemental Indenture to Be Furnished Trustee . In addition to the documents required by Section 11.04 of the Base Indenture, the Trustee shall receive an Officers’ Certificate and an Opinion of Counsel as conclusive evidence that any supplemental indenture executed pursuant hereto complies with the

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requirements of this Article IX, is permitted or authorized by the Indenture and constitutes the legal, valid and binding obligation of the Company, enforceable against it in accordance with its terms (which Officers’ Certificate and Opinion of Counsel may contain customary exceptions and qualifications).

ARTICLE X

CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE

Section 10.01 Applicability of Article 5 of the Base Indenture . Article 5 of the Base Indenture shall not apply to the Notes. Instead, the consolidation, merger, sale, conveyance and lease provisions set forth in this Article X shall, with respect to the Notes, supersede in their entirety such Article 5 of the Base Indenture, and all references in the Base Indenture to such Article and consolidation, merger, sale, conveyance and lease provisions therein, as the case may be, shall, with respect to the Notes, be deemed to be references to this Article X and the consolidation, merger, sale, conveyance and lease provisions set forth in this Article X, respectively.

Section 10.02 Company May Consolidate, Etc. on Certain Terms . Subject to the provisions of Section 10.03, the Company shall not consolidate with, merge with or into, or sell, convey, transfer or lease all or substantially all of its properties and assets substantially as an entirety to another Person, unless:

(a) the resulting, surviving or transferee Person (the “ Successor Company ”), if not the Company, shall be a corporation, partnership, trust or other entity organized and validly existing under the laws of the United States of America, any State thereof or the District of Columbia, and the Successor Company (if not the Company) shall expressly assume, by supplemental indenture, all of the obligations of the Company under the Notes and the Indenture; and

(b) immediately after giving effect to such transaction, no Default or Event of Default shall have occurred and be continuing under the Indenture.

For purposes of this Section 10.02, the sale, conveyance, transfer or lease of all or substantially all of the properties and assets of one or more Subsidiaries of the Company to another Person, which properties and assets, if held by the Company instead of such Subsidiaries, would constitute all or substantially all of the properties and assets of the Company on a consolidated basis, shall be deemed to be the sale, conveyance, transfer or lease of all or substantially all of the properties and assets of the Company to another Person.

Section 10.03 Successor Corporation to Be Substituted . In case of any such consolidation, merger, sale, conveyance, transfer or lease and upon the assumption by the Successor Company, by supplemental indenture, of the due and punctual payment of the principal of and accrued and unpaid interest on all of the Notes, the due and punctual delivery or payment, as the case may be, of any consideration due upon conversion of the Notes and the due and punctual performance of all of the covenants and conditions of the Indenture to be performed by the Company, such Successor Company (if not the Company) shall succeed to, and may

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exercise every right and power of, the Company under the Indenture, and the Company shall be discharged from its obligations under the Notes and the Indenture, except in the case of any such lease of all or substantially all of the Company’s properties and assets. Such Successor Company thereupon may cause to be signed, and may issue either in its own name or in the name of the Company any or all of the Notes issuable hereunder which theretofore shall not have been signed by the Company and delivered to the Trustee; and, upon the order of such Successor Company instead of the Company and subject to all the terms, conditions and limitations in the Indenture prescribed, the Trustee shall authenticate and shall deliver, or cause to be authenticated and delivered, any Notes that previously shall have been signed and delivered by the Officers of the Company to the Trustee for authentication, and any Notes that such Successor Company thereafter shall cause to be signed and delivered to the Trustee for that purpose. All the Notes so issued shall in all respects have the same legal rank and benefit under the Indenture as the Notes theretofore or thereafter issued in accordance with the terms of the Indenture as though all of such Notes had been issued at the date of the execution hereof. In the event of any such consolidation, merger, sale, conveyance or transfer (but not in the case of a lease), upon compliance with this Article X the Person named as the “Company” in the first paragraph of this First Supplemental Indenture (or any successor that shall thereafter have become such in the manner prescribed in this Article X) may be dissolved, wound up and liquidated at any time thereafter and, except in the case of a lease, such Person shall be released from its liabilities as obligor and maker of the Notes and from its obligations under the Indenture and the Notes.

In case of any such consolidation, merger, sale, conveyance, transfer or lease, such changes in phraseology and form (but not in substance) may be made in the Notes thereafter to be issued as may be appropriate.

Section 10.04 Evidence to Be Given to Trustee . No consolidation, merger, sale, conveyance, transfer or lease shall be effective unless the Trustee shall receive an Opinion of Counsel and an Officers’ Certificate to the effect that such transaction complies with the provisions of this Article X.

ARTICLE XI

CONVERSION OF NOTES

Section 11.01 Conversion Privilege . (a) Subject to and upon compliance with the provisions of this Article XI, each Holder of a Note shall have the right, at such Holder’s option, to convert all or any portion (if the portion to be converted is $1,000 principal amount or a multiple thereof) of such Note (i) subject to satisfaction of the conditions described in Section 11.01(b), at any time prior to the close of business on the Business Day immediately preceding November 15, 2024 under the circumstances and during the periods set forth in Section 11.01(b), and (ii) regardless of the conditions described in Section 11.01(b), on or after November 15, 2024 and prior to the close of business on the Business Day immediately preceding the Maturity Date, in each case, at an initial conversion rate of 236.7424 shares of Common Stock (subject to adjustment as provided in Section 11.04, the “ Conversion Rate ”) per $1,000 principal amount of Notes (subject to the settlement provisions of Section 11.02, the “ Conversion Obligation ”).

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(b) (i) Prior to the close of business on the Business Day immediately preceding November 15, 2024, a Holder may surrender all or any portion of its Notes for conversion at any time during the five Business Day period immediately after any five consecutive Trading Day period (the “ Measurement Period ”) in which the Trading Price per $1,000 principal amount of Notes, as determined following a request by a Holder of Notes in accordance with this Section 11.01(b)(i), for each Trading Day of the Measurement Period was less than 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate on each such Trading Day. The Trading Prices shall be determined by the Bid Solicitation Agent pursuant to this subsection (b)(i) and the definition of Trading Price set forth in this First Supplemental Indenture. The Company shall provide written notice to the Bid Solicitation Agent of the three independent nationally recognized securities dealers selected by the Company pursuant to the definition of Trading Price, along with appropriate contact information for each. The Bid Solicitation Agent (if other than the Company) shall have no obligation to determine the Trading Price per $1,000 principal amount of Notes unless the Company has requested such determination, and the Company shall have no obligation to make such request (or, if the Company is acting as Bid Solicitation Agent, the Company shall have no obligation to determine the Trading Price) unless a Holder provides the Company with reasonable evidence that the Trading Price per $1,000 principal amount of Notes would be less than 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate, at which time the Company shall (i) instruct the three independent nationally recognized securities dealers selected by the Company pursuant to the definition of Trading Price to deliver bids to the Bid Solicitation Agent and (ii) instruct the Bid Solicitation Agent to determine, or if the Company is acting as Bid Solicitation Agent, the Company shall determine, the Trading Price per $1,000 principal amount of Notes in each case, beginning on the next Trading Day and on each successive Trading Day until the Trading Price per $1,000 principal amount of Notes is greater than or equal to 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate. If (x) the Company is not acting as Bid Solicitation Agent and does not, when required to, instruct the Bid Solicitation Agent in writing to determine the Trading Price per $1,000 principal amount of Notes when obligated as provided in the preceding sentence, or if the Company so instructs the Bid Solicitation Agent to obtain bids and the Bid Solicitation Agent fails to make such determination or (y) the Company is acting as Bid Solicitation Agent and fails to obtain such bids, then, in either case, the Trading Price per $1,000 principal amount of Notes shall be deemed to be less than 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate on each Trading Day of such failure. If the Trading Price condition set forth above has been met, the Company shall so notify the Holders, the Trustee and the Conversion Agent (if other than the Trustee) in writing. If, at any time after the Trading Price condition set forth above has been met, the Trading Price per $1,000 principal amount of Notes is greater than or equal to 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate for such date, the Company shall so notify the Holders of the Notes, the Trustee and the Conversion Agent (if other than the Trustee) in writing.

(ii) If, prior to the close of business on the Business Day immediately preceding November 15, 2024, the Company elects to:

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(A) issue to all or substantially all holders of the Common Stock any rights, options or warrants (other than pursuant to a stockholder rights plan so long as such rights have not separated from the shares of Common Stock) entitling them, for a period of not more than 60 calendar days after the announcement date of such issuance, to subscribe for or purchase shares of Common Stock at a price per share that is less than the average of the Last Reported Sale Prices of the Common Stock for the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the date of announcement of such issuance; or

(B) distribute to all or substantially all holders of the Common Stock the Company’s assets, securities or rights to purchase securities of the Company, which distribution has a per share value, as determined by the Board of Directors or a committee thereof, exceeding 10% of the Last Reported Sale Price of the Common Stock on the Trading Day preceding the date of announcement for such distribution,

then, in either case, the Company shall notify all Holders of the Notes, the Trustee and the Conversion Agent (if other than the Trustee) in writing at least 30 Scheduled Trading Days prior to the Ex-Dividend Date for such issuance or distribution (or, if later in the case of any such separation of rights issued pursuant to a stockholder rights plan, as soon as reasonably practicable after the Company becomes aware that such separation or triggering event has occurred or will occur). Once the Company has given such notice, Holders may surrender all or any portion of their Notes for conversion at any time until the earlier of (1) the close of business on the Business Day immediately preceding the Ex-Dividend Date for such issuance or distribution and (2) the Company’s announcement that such issuance or distribution will not take place (or in the case of a separation or triggering event, until the 20th Trading Day following the date of the Company’s notice), even if the Notes are not otherwise convertible at such time. Holders of the Notes may not convert their Notes pursuant to this Section 11.01(b)(ii) if they participate, at the same time and upon the same terms as holders of Common Stock and solely as a result of holding the Notes, in any of the transactions described above without having to convert their Notes as if they held a number of shares of Common Stock equal to the applicable Conversion Rate, multiplied by the principal amount (expressed in thousands) of Notes held by such Holder. For purposes of this Section 11.01(b)(ii) and Section 11.04(b), in determining whether any rights, options or warrants entitle the holders to subscribe for or purchase shares of Common Stock at less than such average of the Last Reported Sale Prices of the Common Stock for the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the date of announcement for such issuance, and in determining the aggregate offering price of such shares of Common Stock, there shall be taken into account any consideration received by the Company for such rights, options or warrants and any amount payable on exercise or conversion thereof, the value of such consideration, if other than cash, to be determined by the Board of Directors or a committee thereof.

(iii) If (x) a transaction or event that constitutes a Fundamental Change or a Make-Whole Fundamental Change occurs prior to the close of business on the Business Day immediately preceding November 15, 2024, regardless of whether a Holder has the right to require the Company to repurchase the Notes pursuant to Section

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12.01 or (y) the Company is a party to a Merger Event (other than a Merger Event that is solely for the purpose of changing the Company’s jurisdiction of organization that (x) does not constitute a Fundamental Change or a Make-Whole Fundamental Change and (y) results in a reclassification, conversion or exchange of outstanding shares of Common Stock solely into shares of Common Stock of the surviving entity and such Common Stock becomes Reference Property for the Notes), that occurs prior to the close of business on the Business Day immediately preceding November 15, 2024 (each such Fundamental Change, Make-Whole Fundamental Change or Merger Event, a “ Corporate Event ”), then all or any portion of a Holder’s Notes may be surrendered for conversion at any time after the effective date of such Corporate Event until the earlier of (x) 35 Trading Days after the actual effective date of such Corporate Event or, if such Corporate Event also constitutes a Fundamental Change, until the close of business on the Business Day immediately preceding the related Fundamental Change Repurchase Date and (y) the Scheduled Trading Day immediately preceding the Maturity Date. The Company shall notify Holders, the Trustee and the Conversion Agent (if other than the Trustee) in writing within three Business Days following the date the Company publicly announces such Corporate Event, but in no event later than the actual effective date of such Corporate Event.

(iv) Prior to the close of business on the Business Day immediately preceding November 15, 2024, all or any portion of a Holder’s Notes may be surrendered for conversion at any time during any calendar quarter commencing after the calendar quarter ending on March 31, 2019 (and only during such calendar quarter), if the Last Reported Sale Price of the Common Stock for at least 20 Trading Days (whether or not consecutive) during the period of 30 consecutive Trading Days ending on, and including, the last Trading Day of the immediately preceding calendar quarter is greater than or equal to 130% of the Conversion Price on each applicable Trading Day. The Conversion Agent, on behalf of the Company, shall determine at the beginning of each calendar quarter commencing after March 31, 2019 whether the Notes may be surrendered for conversion in accordance with this clause (iv) and shall notify the Company and the Trustee if the Notes become convertible in accordance with this clause.

(v) If the Company calls any or all of the Notes for redemption pursuant to Article XIII prior to the close of business on the Business Day immediately preceding November 15, 2024, then a Holder may surrender all or any portion of its Notes for conversion at any time prior to the close of business on the Scheduled Trading Day prior to the Redemption Date, even if the Notes are not otherwise convertible at such time. After that time, the right to convert on account of the Company’s delivery of a Notice of Redemption shall expire, unless the Company defaults in the payment of the Redemption Price, in which case a Holder of Notes may convert its Notes until the close of business on the Scheduled Trading Day immediately preceding the date on which the Redemption Price has been paid or duly provided for.

Section 11.02 Conversion Procedure; Settlement Upon Conversion .

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(a) Subject to this Section 11.02, Section 11.03(b) and Section 11.07(a), upon conversion of any Note, the Company shall pay or deliver, as the case may be, to the converting Holder, in respect of each $1,000 principal amount of Notes being converted, cash (“ Cash Settlement ”), shares of Common Stock, together with cash, if applicable, in lieu of delivering any fractional share of Common Stock in accordance with subsection (j) of this Section 11.02 (“ Physical Settlement ”) or a combination of cash and shares of Common Stock, together with cash, if applicable, in lieu of delivering any fractional share of Common Stock in accordance with subsection (j) of this Section 11.02 (“ Combination Settlement ”), at its election, as set forth in this Section 11.02.

(i) All conversions for which the relevant Conversion Date occurs on or after November 15, 2024 and all conversions for which the relevant Conversion Date occurs after the issuance of a Notice of Redemption and prior to the related Redemption Date shall be settled using the same Settlement Method.

(ii) Except for any conversions for which the relevant Conversion Date occurs after the Company’s issuance of a Notice of Redemption with respect to the Notes, but prior to the related Redemption Date, and any conversions for which the relevant Conversion Date occurs on or after November 15, 2024, the Company shall use the same Settlement Method for all conversions occurring on the same Conversion Date, but the Company shall not have any obligation to use the same Settlement Method with respect to conversions that occur on different Trading Days.

(iii) If, in respect of any Conversion Date (or in respect of one of the periods described in the fourth immediately succeeding set of parentheses, as the case may be), the Company elects to deliver a notice (the “ Settlement Notice ”) of the relevant Settlement Method in respect of such Conversion Date (or such period, as the case may be), the Company shall deliver such Settlement Notice to converting Holders, the Trustee and the Conversion Agent (if other than the Trustee) no later than the close of business on the Trading Day immediately following the related Conversion Date (or, in the case of conversions occurring (x) after the date of issuance of a Notice of Redemption and prior to the related Redemption Date, in such Notice of Redemption or (y) on or after November 15, 2024, no later than the close of business on the Scheduled Trading Day immediately preceding November 15, 2024). If the Company does not elect a Settlement Method prior to the deadline set forth in the immediately preceding sentence, the Company shall no longer have the right to elect Cash Settlement or Physical Settlement and the Company shall be deemed to have elected Combination Settlement in respect of its Conversion Obligation, and the Specified Dollar Amount per $1,000 principal amount of Notes shall be equal to $1,000. Such Settlement Notice shall specify the relevant Settlement Method and in the case of an election of Combination Settlement, the relevant Settlement Notice shall indicate the Specified Dollar Amount per $1,000 principal amount of Notes. If the Company delivers a Settlement Notice electing Combination Settlement in respect of its Conversion Obligation but does not indicate a Specified Dollar Amount per $1,000 principal amount of Notes in such Settlement Notice, the Specified Dollar Amount per $1,000 principal amount of Notes shall be deemed to be $1,000.

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(iv) The cash, shares of Common Stock or combination of cash and shares of Common Stock in respect of any conversion of Notes (the “ Settlement Amount ”) shall be computed as follows:

(A) if the Company elects to satisfy its Conversion Obligation in respect of such conversion by Physical Settlement, the Company shall deliver to the converting Holder in respect of each $1,000 principal amount of Notes being converted a number of shares of Common Stock equal to the Conversion Rate in effect on the Conversion Date;

(B) if the Company elects to satisfy its Conversion Obligation in respect of such conversion by Cash Settlement, the Company shall pay to the converting Holder in respect of each $1,000 principal amount of Notes being converted cash in an amount equal to the sum of the Daily Conversion Values for each of the 25 consecutive Trading Days during the related Observation Period; and

(C) if the Company elects (or is deemed to have elected) to satisfy its Conversion Obligation in respect of such conversion by Combination Settlement, the Company shall pay or deliver, as the case may be, in respect of each $1,000 principal amount of Notes being converted, a Settlement Amount equal to the sum of the Daily Settlement Amounts for each of the 25 consecutive Trading Days during the related Observation Period.

(v) The Daily Settlement Amounts (if applicable) and the Daily Conversion Values (if applicable) shall be determined by the Company promptly following the last day of the Observation Period. Promptly after such determination of the Daily Settlement Amounts or the Daily Conversion Values, as the case may be, and the amount of cash payable in lieu of delivering any fractional share of Common Stock, the Company shall notify the Trustee and the Conversion Agent (if other than the Trustee) of the Daily Settlement Amounts or the Daily Conversion Values, as the case may be, and the amount of cash payable in lieu of delivering fractional shares of Common Stock. The Trustee and the Conversion Agent (if other than the Trustee) shall have no responsibility for any such determination.

(b) Subject to Section 11.02(e), before any Holder of a Note shall be entitled to convert a Note as set forth above, such Holder shall (i) in the case of a Global Note, comply with the procedures of the Depositary in effect at that time and, if required, pay funds equal to interest payable on the next Interest Payment Date to which such Holder is not entitled as set forth in Section 11.02(h) and, if required, pay all transfer and similar taxes, if any as provided in Sections 11.02(d) or (e), and (ii) in the case of a Physical Note (1) complete, manually sign and deliver an irrevocable notice to the Conversion Agent as set forth in the Form of Notice of Conversion (or a facsimile thereof) (a “ Notice of Conversion ”) at the office of the Conversion Agent and state in writing therein the principal amount of Notes to be converted and the name or names (with addresses) in which such Holder wishes the certificate or certificates for any shares of Common Stock to be delivered upon settlement of the Conversion Obligation to be registered, (2) surrender such Notes, duly endorsed to the Company or in blank (and

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accompanied by appropriate endorsement and transfer documents), at the office of the Conversion Agent, (3) if required, furnish appropriate endorsements and transfer documents and (4) if required, pay funds equal to interest payable on the next Interest Payment Date to which such Holder is not entitled as set forth in Section 11.02(h). The Trustee (and, if different, the Conversion Agent) shall notify the Company of any conversion pursuant to this Article XI on the Conversion Date for such conversion. No Notice of Conversion with respect to any Notes may be surrendered by a Holder thereof if such Holder has also delivered a Fundamental Change Repurchase Notice to the Company in respect of such Notes and not validly withdrawn such Fundamental Change Repurchase Notice in accordance with Section 12.02.

If more than one Note shall be surrendered for conversion at one time by the same Holder, the Conversion Obligation with respect to such Notes shall be computed on the basis of the aggregate principal amount of the Notes (or specified portions thereof to the extent permitted thereby) so surrendered.

(c) A Note shall be deemed to have been converted immediately prior to the close of business on the date (the “ Conversion Date ”) that the Holder has complied with the requirements set forth in subsection (b) above. Except as set forth in Section 11.03(b) and Section 11.07(a), the Company shall pay or deliver, as the case may be, the consideration due in respect of the Conversion Obligation on the second Business Day immediately following the relevant Conversion Date, if the Company elects Physical Settlement ( provided that, with respect to any Conversion Date occurring on or after November 15, 2024, settlement will occur on the Maturity Date) or on the second Business Day immediately following the last Trading Day of the relevant Observation Period, in the case of any other Settlement Method. If any shares of Common Stock are due to converting Holders, the Company shall issue or cause to be issued, and deliver to the Conversion Agent or to such Holder, or such Holder’s nominee or nominees, certificates or a book-entry transfer through the Depositary for the full number of shares of Common Stock to which such Holder shall be entitled in satisfaction of the Company’s Conversion Obligation.

(d) In case any Note shall be surrendered for partial conversion, the Company shall execute and the Trustee shall authenticate and deliver to or upon the written order of the Holder of the Note so surrendered a new Note or Notes in authorized denominations in an aggregate principal amount equal to the unconverted portion of the surrendered Note, without payment of any service charge by the converting Holder but with payment of a sum sufficient to cover any documentary, stamp or similar issue or transfer tax or similar governmental charge required by law or that may be imposed in connection therewith as a result of the name of the Holder of the new Notes issued upon such conversion being different from the name of the Holder of the old Notes surrendered for such conversion.

(e) If a Holder submits a Note for conversion, the Company shall pay any documentary, stamp or similar issue or transfer tax due on the issue of any shares of Common Stock upon conversion, unless the tax is due because the Holder requests such shares to be issued in a name other than the Holder’s name, in which case the Holder shall pay that tax. The Conversion Agent may refuse to deliver the certificates representing the shares of Common Stock being issued in a name other than the Holder’s name until the Trustee receives a sum sufficient to pay any tax that is due by such Holder in accordance with the immediately preceding sentence.

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(f) Except as provided in Section 11.04, no adjustment shall be made for dividends on any shares issued upon the conversion of any Note as provided in this Article XI.

(g) Upon the conversion of an interest in a Global Note, the Trustee, or the Notes Custodian at the direction of the Trustee, shall make a notation on such Global Note as to the reduction in the principal amount represented thereby. The Company shall notify the Trustee in writing of any conversion of Notes effected through any Conversion Agent other than the Trustee.

(h) Upon conversion, a Holder shall not receive any separate cash payment for accrued and unpaid interest, if any, except as set forth below. The Company’s settlement of the full Conversion Obligation shall be deemed to satisfy in full its obligation to pay the principal amount of the Note and accrued and unpaid interest, if any, to, but not including, the relevant Conversion Date. As a result, accrued and unpaid interest, if any, to, but not including, the relevant Conversion Date shall be deemed to be paid in full rather than cancelled, extinguished or forfeited. Upon a conversion of Notes into a combination of cash and shares of Common Stock, accrued and unpaid interest will be deemed to be paid first out of the cash paid upon such conversion. Notwithstanding the foregoing, if Notes are converted after the close of business on a Regular Record Date, Holders of such Notes as of the close of business on such Regular Record Date will receive the full amount of interest payable on such Notes on the corresponding Interest Payment Date notwithstanding the conversion. Notes surrendered for conversion during the period from the close of business on any Regular Record Date to the open of business on the immediately following Interest Payment Date must be accompanied by funds equal to the amount of interest payable on the Notes so converted; provided that no such payment shall be required (1) for conversions of Notes following the Regular Record Date immediately preceding the Maturity Date; (2) if the Company has specified a Redemption Date that is after a Regular Record Date and on or prior to the Business Day immediately following the corresponding Interest Payment Date; (3) if the Company has specified a Fundamental Change Repurchase Date that is after a Regular Record Date and on or prior to the Business Day immediately following the corresponding Interest Payment Date; or (4) to the extent of any Defaulted Amounts, if any Defaulted Amounts exists at the time of conversion with respect to such Note. Therefore, for the avoidance of doubt, all Holders of record on the Regular Record Date immediately preceding the Maturity Date, any Fundamental Change Repurchase Date or Redemption Date, in each case, shall receive the full interest payment due on the Maturity Date or other applicable Interest Payment Date in cash, regardless of whether their Notes have been converted following such Regular Record Date.

(i) The Person in whose name the certificate for any shares of Common Stock delivered upon conversion is registered shall be treated as a stockholder of record as of the close of business on the relevant Conversion Date (if the Company elects to satisfy the related Conversion Obligation by Physical Settlement) or the last Trading Day of the relevant Observation Period (if the Company elects to satisfy the related Conversion Obligation by Combination Settlement), as the case may be. Upon a conversion of Notes, such Person shall no longer be a Holder of such Notes surrendered for conversion.

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(j) The Company shall not issue any fractional share of Common Stock upon conversion of the Notes and shall instead pay cash in lieu of delivering any fractional share of Common Stock issuable upon conversion based on the Daily VWAP on the relevant Conversion Date (in the case of Physical Settlement) or based on the Daily VWAP on the last Trading Day of the relevant Observation Period (in the case of Combination Settlement). For each Note surrendered for conversion, if the Company has elected (or is deemed to have elected) Combination Settlement, the full number of shares that shall be issued upon conversion thereof shall be computed on the basis of the aggregate Daily Settlement Amounts for the relevant Observation Period, and any fractional shares remaining after such computation shall be paid in cash.

Section 11.03 Increased Conversion Rate Applicable to Certain Notes Surrendered in Connection with Make-Whole Fundamental Changes or Notice of Redemption . (a) If (i) the Effective Date (as defined below) of a Make-Whole Fundamental Change occurs prior to the Maturity Date or (ii) the Company gives a Notice of Redemption with respect to the Notes, and, in each case, a Holder elects to convert its Notes in connection with such Make-Whole Fundamental Change or Notice of Redemption, as applicable, the Company shall, under the circumstances described below, increase the Conversion Rate for the Notes so surrendered for conversion by a number of additional shares of Common Stock (the “ Additional Shares ”) as described below. A conversion of Notes shall be deemed for these purposes to be “in connection with” such Make-Whole Fundamental Change if the relevant Notice of Conversion is received by the Conversion Agent from, and including, the Effective Date of the Make-Whole Fundamental Change up to, and including, the Business Day immediately prior to the related Fundamental Change Repurchase Date (or, in the case of a Make-Whole Fundamental Change that would have been a Fundamental Change but for subclause (i) of the proviso in clause (b) of the definition thereof, the 30th Trading Day immediately following the Effective Date of such Make-Whole Fundamental Change). A conversion of Notes shall be deemed for these purposes to be “in connection with” a Notice of Redemption if the notice of conversion of the Notes is received by the Conversion Agent from, and including, the date of the Notice of Redemption until the close of business on the Business Day immediately preceding the Redemption Date.

(b) Upon surrender of Notes for conversion in connection with a Make-Whole Fundamental Change pursuant to Section 11.01(b)(iii) or a Notice of Redemption, as applicable, the Company shall, at its option, satisfy the related Conversion Obligation by Physical Settlement, Cash Settlement or Combination Settlement in accordance with Section 11.02 based on the Conversion Rate as increased to reflect the Additional Shares pursuant to the table below; provided , however , that if, at the effective time of a Make-Whole Fundamental Change described in clause (b) of the definition of Fundamental Change, the Reference Property following such Make-Whole Fundamental Change is composed entirely of cash, for any conversion of Notes following the Effective Date of such Make-Whole Fundamental Change, the Conversion Obligation shall be calculated based solely on the Stock Price for the transaction and shall be deemed to be an amount of cash per $1,000 principal amount of converted Notes equal to the Conversion Rate (including any adjustment for Additional Shares), multiplied by such Stock Price. In such event, the Conversion Obligation will be determined and shall be paid to Holders in cash on the second Business Day following the Conversion Date. The Company shall notify the Holders, the Trustee and the Conversion Agent (if other than the Trustee) in writing of the Effective Date of any Make-Whole Fundamental Change no later than five Business Days after such Effective Date.

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(c) The number of Additional Shares, if any, by which the Conversion Rate shall be increased shall be determined by reference to the table below, based on the date on which the Make-Whole Fundamental Change occurs or becomes effective, or the date of the Notice of Redemption, as the case may be (in each case, the “ Effective Date ”) and the price paid (or deemed to be paid) per share of the Common Stock in the Make-Whole Fundamental Change or with respect to the Notice of Redemption, as the case may be (in each case, the “ Stock Price ”). If the holders of the Common Stock receive in exchange for their Common Stock only cash in a Make-Whole Fundamental Change described in clause (b) of the definition of Fundamental Change, the Stock Price shall be the cash amount paid per share. Otherwise, the Stock Price shall be the average of the Last Reported Sale Prices of the Common Stock over the five Trading Day period ending on, and including, the Trading Day immediately preceding the Effective Date of the Make-Whole Fundamental Change or the date of the Notice of Redemption, as the case may be. The Board of Directors or a committee thereof shall make appropriate adjustments to the Stock Price to account for any adjustment to the Conversion Rate that becomes effective, or any event requiring an adjustment to the Conversion Rate where the Ex-Dividend Date of the event occurs, during such five consecutive Trading Day period.

(d) The Stock Prices set forth in the column headings of the table below shall be adjusted as of any date on which the Conversion Rate of the Notes is otherwise adjusted. The adjusted Stock Prices shall equal the Stock Prices applicable immediately prior to such adjustment, multiplied by a fraction, the numerator of which is the Conversion Rate immediately prior to such adjustment giving rise to the Stock Price adjustment and the denominator of which is the Conversion Rate as so adjusted. The number of Additional Shares set forth in the table below shall be adjusted in the same manner and at the same time as the Conversion Rate as set forth in Section 11.04.

(e) The following table sets forth the number of Additional Shares of Common Stock by which the Conversion Rate shall be increased per $1,000 principal amount of Notes pursuant to this Section 11.03 for each Stock Price and Effective Date set forth below:

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The exact Stock Prices and Effective Dates may not be set forth in the table above, in which case:

(i) if the Stock Price is between two Stock Prices in the table above or the Effective Date is between two Effective Dates in the table above, the number of Additional Shares by which the Conversion Rate will be increased shall be determined by a straight-line interpolation between the number of Additional Shares set forth for the higher and lower Stock Prices and the earlier and later Effective Dates, as applicable, based on a 365-day year;

(ii) if the Stock Price is greater than $25.00 per share (subject to adjustment in the same manner as the Stock Prices set forth in the column headings of the table above pursuant to subsection (d) above), no Additional Shares shall be added to the Conversion Rate; and

(iii) if the Stock Price is less than $3.52 per share (subject to adjustment in the same manner as the Stock Prices set forth in the column headings of the table above pursuant to subsection (d) above), no Additional Shares shall be added to the Conversion Rate.

Notwithstanding the foregoing, in no event shall the Conversion Rate per $1,000 principal amount of Notes exceed 284.0909 shares of Common Stock, subject to adjustment in the same manner as the Conversion Rate pursuant to Section 11.04.

(f) Nothing in this Section 11.03 shall prevent an adjustment to the Conversion Rate pursuant to Section 11.04 in respect of a Make-Whole Fundamental Change.

Section 11.04 Adjustment of Conversion Rate . The Conversion Rate shall be adjusted from time to time by the Company if any of the following events occurs, except that the Company shall not make any adjustments to the Conversion Rate if Holders of the Notes participate (other than in the case of a share split or share combination or a tender or exchange offer), at the same time and upon the same terms as holders of the Common Stock and solely as a result of holding the Notes, in any of the transactions described in this Section 11.04, without having to convert their Notes, as if they held a number of shares of Common Stock equal to the Conversion Rate, multiplied by the principal amount (expressed in thousands) of Notes held by such Holder.

(a) If the Company exclusively issues shares of Common Stock as a dividend or distribution on shares of Common Stock, or if the Company effects a share split or share combination, the Conversion Rate shall be adjusted based on the following formula:

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where,

Any adjustment made under this Section 11.04(a) shall become effective immediately after the open of business on the Ex-Dividend Date for such dividend or distribution, or immediately after the open of business on the Effective Date for such share split or share combination, as applicable. If any dividend or distribution of the type described in this Section 11.04(a) is declared but not so paid or made, the Conversion Rate shall be immediately readjusted, effective as of the date the Board of Directors or a committee thereof determines not to pay such dividend or distribution, to the Conversion Rate that would then be in effect if such dividend or distribution had not been declared.

(b) If the Company issues to all or substantially all holders of the Common Stock any rights, options or warrants (other than in connection with a stockholder rights plan) entitling them, for a period of not more than 60 calendar days after the announcement date of such issuance, to subscribe for or purchase shares of Common Stock at a price per share that is less than the average of the Last Reported Sale Prices of the Common Stock for the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the date of announcement of such issuance, the Conversion Rate shall be increased based on the following formula:

where,

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Any increase made under this Section 11.04(b) shall be made successively whenever any such rights, options or warrants are issued and shall become effective immediately after the open of business on the Ex-Dividend Date for such issuance. To the extent that shares of Common Stock are not delivered after the expiration of such rights, options or warrants, the Conversion Rate shall be decreased to the Conversion Rate that would then be in effect had the increase with respect to the issuance of such rights, options or warrants been made on the basis of delivery of only the number of shares of Common Stock actually delivered. If such rights, options or warrants are not so issued, the Conversion Rate shall be decreased to the Conversion Rate that would then be in effect if such Ex-Dividend Date for such issuance had not occurred.

For purposes of this Section 11.04(b) and Section 11.01(b)(ii)(A), in determining whether any rights, options or warrants entitle the holders to subscribe for or purchase shares of Common Stock at less than such average of the Last Reported Sale Prices of the Common Stock for the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the date of announcement for such issuance, and in determining the aggregate offering price of such shares of Common Stock, there shall be taken into account any consideration received by the Company for such rights, options or warrants and any amount payable on exercise or conversion thereof, the value of such consideration, if other than cash, to be determined by the Board of Directors or a committee thereof.

(c) If the Company distributes shares of its capital stock, evidences of its indebtedness, other assets or property of the Company or rights, options or warrants to acquire its capital stock or other securities, to all or substantially all holders of the Common Stock, excluding (i) dividends, distributions or issuances (including share splits) as to which an adjustment was effected pursuant to Section 11.04(a) or Section 11.04(b), (ii) dividends or distributions paid exclusively in cash as to which the provisions set forth in Section 11.04(d) shall apply, (iii) except as otherwise provided for in this Section 11.04(c), rights issued pursuant to a stockholder rights plan of the Company, (iv) distributions of Reference Property in a transaction as to which an adjustment was effected pursuant to Section 11.07; and (v) Spin-Offs as to which the provisions set forth below in this Section 11.04(c) shall apply (any of such shares of capital stock, evidences of indebtedness, other assets or property or rights, options or warrants to acquire capital stock or other securities of the Company, the “ Distributed Property ”), then the Conversion Rate shall be increased based on the following formula:

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where,

Any increase made under the portion of this Section 11.04(c) above shall become effective immediately after the open of business on the Ex-Dividend Date for such distribution. If any distribution of the type described in this portion of Section 11.04(c) is declared but not so paid or made, the Conversion Rate shall be decreased to the Conversion Rate that would then be in effect if such distribution had not been declared. If the Company issues rights, options or warrants that are only exercisable upon the occurrence of certain triggering events, then the Company shall not adjust the Conversion Rate pursuant to this Section 11.04 until the earliest of these triggering events occurs, and the Company shall readjust the Conversion Rate to the extent that any of these rights, options or warrants are not exercised before they expire. In the case of any distribution of rights, options or warrants, to the extent any such rights, options or warrants expire unexercised, the Conversion Rate shall be immediately readjusted to the Conversion Rate that would then be in effect had the increase made for the distribution of such rights, options or warrants been made on the basis of delivery of only the number of shares of Common Stock actually delivered upon exercise of such rights, options or warrants.

Notwithstanding the foregoing, if “FMV” (as defined above) is equal to or greater than “SP0” (as defined above), in lieu of the foregoing increase, each Holder of a Note shall receive, in respect of each $1,000 principal amount thereof, at the same time and upon the same terms as holders of the Common Stock receive the Distributed Property, the amount and kind of Distributed Property such Holder would have received if such Holder owned a number of shares of Common Stock equal to the Conversion Rate in effect on the Ex-Dividend Date for the distribution. If the Board of Directors or a committee thereof determines the “FMV” (as defined above) of any distribution for purposes of this Section 11.04(c) by reference to the actual or when-issued trading market for any securities, it shall in doing so consider the prices in such market over the same period used in computing the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the Ex-Dividend Date for such distribution.

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With respect to an adjustment pursuant to this Section 11.04(c) where there has been a payment of a dividend or other distribution on the Common Stock of shares of capital stock of any class or series, or similar equity interest, of or relating to a Subsidiary or other business unit of the Company, that are, or, when issued, will be, listed or admitted for trading on a U.S. national securities exchange (a “ Spin-Off ”), the Conversion Rate shall be increased based on the following formula:

where,

The increase to the Conversion Rate under the preceding paragraph shall occur at the close of business on the last Trading Day of the Valuation Period; provided that (x) in respect of any conversion of Notes for which Physical Settlement is applicable, if the relevant Conversion Date occurs during the Valuation Period, the reference in this Section 11.04(c) to “10” shall be deemed replaced with such lesser number of Trading Days as have elapsed from, and including, the Ex-Dividend Date for such Spin-Off to, and including, such Conversion Date in determining the Conversion Rate and (y) in respect of any conversion of Notes for which Cash Settlement or Combination Settlement is applicable, for any Trading Day that falls within the relevant Observation Period for such conversion and within the Valuation Period, the reference in this Section 11.04(c) to “10” shall be deemed replaced with such lesser number of Trading Days as have elapsed from, and including, the Ex-Dividend Date for such Spin-Off to, and including, such Trading Day in determining the Conversion Rate as of such Trading Day of such Observation Period. If any dividend or distribution that constitutes a Spin-Off is declared but not so paid or made, the Conversion Rate shall be immediately decreased, effective as of the date the Board of Directors or a committee thereof determines not to pay or make such dividend or distribution, to the Conversion Rate that would then be in effect if such dividend or distribution had not been declared or announced.

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(d) If any cash dividend or distribution is made to all or substantially all holders of the Common Stock, the Conversion Rate shall be adjusted based on the following formula:

where,

Any increase pursuant to this Section 11.04(d) shall become effective immediately after the open of business on the Ex-Dividend Date for such dividend or distribution. If such dividend or distribution is not so paid, the Conversion Rate shall be decreased, effective as of the date the Board of Directors or a committee thereof determines not to make or pay such dividend or distribution, to be the Conversion Rate that would then be in effect if such dividend or distribution had not been declared.

Notwithstanding the foregoing, if “C” (as defined above) is equal to or greater than “SP0” (as defined above), in lieu of the foregoing increase, each Holder of a Note shall receive, in respect of each $1,000 principal amount of Notes, at the same time and upon the same terms as holders of shares of Common Stock, the amount of cash that such Holder would have received if such Holder owned a number of shares of Common Stock equal to the Conversion Rate in effect on the Ex-Dividend Date for such cash dividend or distribution.

(e) If the Company or any of its Subsidiaries make a payment in respect of a tender or exchange offer for the Common Stock that is subject to the then-applicable tender offer rules under the Exchange Act, other than an odd lot tender offer, to the extent that the cash and value of any other consideration included in the payment per share of the Common Stock exceeds the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period commencing on, and including, the Trading Day next succeeding the last date on which tenders or exchanges may be made pursuant to such tender or exchange offer, the Conversion Rate shall be increased based on the following formula:

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where,

The increase to the Conversion Rate under this Section 11.04(e) shall occur at the close of business on the 10th Trading Day immediately following, and including, the Trading Day immediately following the date such tender or exchange offer expires; provided that (x) in respect of any conversion of Notes for which Physical Settlement is applicable, if the relevant Conversion Date occurs during the 10 Trading Days immediately following, and including, the Trading Day next succeeding the expiration date of any tender or exchange offer, references to “10” or “10th” in this Section 11.04(e) shall be deemed replaced with such lesser number of Trading Days as have elapsed from, and including, the Trading Day next succeeding the date that such tender or exchange offer expires to, and including, the Conversion Date in determining the Conversion Rate and (y) in respect of any conversion of Notes for which Cash Settlement or Combination Settlement is applicable, for any Trading Day that falls within the relevant Observation Period for such conversion and within the 10 Trading Days immediately following, and including, the Trading Day immediately following the expiration date of any tender or exchange offer, references to “10” or “10th” in this Section 11.04(e) shall be deemed replaced with such lesser number of Trading Days as have elapsed from, and including, the Trading Day next succeeding the expiration date of such tender or exchange offer to, and including, such Trading Day in determining the Conversion Rate of such Trading Day.

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If the Company or one of its Subsidiaries is obligated to purchase Common Stock pursuant to any such tender or exchange offer described in this Section 11.04(e) but the Company, or such Subsidiary, is permanently prevented by applicable law from effecting any such purchase or all such purchases are rescinded, the applicable Conversion Rate will be decreased to be the Conversion Rate that would then be in effect if such tender or exchange offer had not been made or had been made only in respect of the purchases that have been effected.

(f) Notwithstanding this Section 11.04 or any other provision of the Indenture or the Notes if a Conversion Rate adjustment becomes effective on any Ex-Dividend Date, and a Holder that has converted its Notes on or after such Ex-Dividend Date and on or prior to the related Record Date would be treated as the record holder of the shares of Common Stock as of the related Conversion Date as described under Section 11.02(i) based on an adjusted Conversion Rate for such Ex-Dividend Date, then, notwithstanding the Conversion Rate adjustment provisions in this Section 11.04, the Conversion Rate adjustment relating to such Ex-Dividend Date shall not be made for such converting Holder. Instead, such Holder shall be treated as if such Holder were the record owner of the shares of Common Stock on an unadjusted basis and participate in the related dividend, distribution or other event giving rise to such adjustment.

(g) Except as stated herein, the Company shall not adjust the Conversion Rate for the issuance of shares of Common Stock or any securities convertible into or exchangeable for shares of Common Stock or the right to purchase shares of Common Stock or such convertible or exchangeable securities (including as consideration for a merger, purchase or similar transaction).

(h) In addition to those adjustments required by clauses (a), (b), (c), (d) and (e) of this Section 11.04, and to the extent permitted by applicable law and subject to the applicable listing standards of the Nasdaq Global Select Market or the principal U.S. national or regional securities exchange on which the Common Stock is then traded if not the Nasdaq Global Select Market, the Company from time to time may increase the Conversion Rate by any amount for a period of at least 20 Business Days if the Board of Directors or a committee thereof determines that such increase would be in the Company’s best interest. In addition, to the extent permitted by applicable law and subject to the applicable rules of the Nasdaq Global Select Market or the principal U.S. national or regional securities exchange on which the Common Stock is then traded if not the Nasdaq Global Select Market, the Company may (but is not required to) increase the Conversion Rate to avoid or diminish any income tax to holders of Common Stock or rights to purchase Common Stock in connection with a dividend or distribution of shares (or rights to acquire shares) or similar event. Whenever the Conversion Rate is increased pursuant to either of the preceding two sentences, the Company shall deliver to the Holder of each Note at its last address appearing on the Note Register (with a copy to the Trustee and the Conversion Agent) a notice of the increase at least 15 days prior to the date the increased Conversion Rate takes effect, and such notice shall state the increased Conversion Rate and the period during which it will be in effect.

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(i) Except as described above in this Article XI and under Section 13.03, the Conversion Rate will not be required to be adjusted for any transaction or event. Without limiting the foregoing, the Conversion Rate will not be required to be adjusted:

(i) upon the issuance of any shares of Common Stock pursuant to any present or future plan providing for the reinvestment of dividends or interest payable on the Company’s securities and the investment of additional optional amounts in shares of Common Stock under any plan;

(ii) upon the issuance of any shares of Common Stock or options or rights to purchase those shares pursuant to any present or future employee, director or consultant benefit or incentive plan or program of or assumed by the Company or any of the Company’s Subsidiaries;

(iii) upon the issuance of any shares of Common Stock pursuant to any option, warrant, right or exercisable, exchangeable or convertible security not described in clause (ii) of this subsection and outstanding as of the date the Notes were first issued;

(iv) upon the repurchase of any shares of Common Stock pursuant to an open-market share repurchase program or other buy-back transaction (including, without limitation, through any structured or derivative transactions such as accelerated share repurchase transactions or similar forward derivatives), or other buy-back transaction, that is not a tender offer or exchange offer of the nature described under Section 11.04(e);

(v) solely for a change in the par value (or lack of par value) of the Common Stock; or

(vi) for accrued and unpaid interest, if any.

The Company shall not be required to make an adjustment pursuant to clauses (a), (b), (c), (d) or (e) of this Section 11.04 unless such adjustment would result in a change of at least 1% of the then effective Conversion Rate. However, the Company shall carry forward any adjustment that the Company would otherwise have to make and take that adjustment into account in any subsequent adjustment. Notwithstanding the foregoing, all such carried-forward adjustments shall be made with respect to the Notes (i) in connection with any subsequent adjustment to the Conversion Rate of at least 1% of the Conversion Rate (when such carried-forward adjustments are taken into account), (ii) regardless of whether the aggregate adjustment is less than 1% of the applicable Conversion Rate, (x) on the Conversion Date for any Notes (in the case of Physical Settlement) or (y) on each Trading Day of any Observation Period (in the case of Cash Settlement or Combination Settlement) and (iii) on the Effective Date of any Make-Whole Fundamental Change, in each case, unless the adjustment has already been made. All calculations and other determinations under this Article XI shall be made by the Company and shall be made to the nearest one-ten thousandth (1/10,000) of a share.

(j) Whenever the Conversion Rate is adjusted as herein provided, the Company shall promptly file with the Trustee (and the Conversion Agent if not the Trustee) an

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Officers’ Certificate setting forth the Conversion Rate after such adjustment and setting forth a brief statement of the facts requiring such adjustment. Unless and until a Trust Officer of the Trustee and the Conversion Agent shall have received such Officers’ Certificate, the Trustee and the Conversion Agent shall not be deemed to have knowledge of any adjustment of the Conversion Rate and may assume without inquiry that the last Conversion Rate of which it has knowledge is still in effect. Promptly after delivery of such certificate, the Company shall prepare a notice of such adjustment of the Conversion Rate setting forth the adjusted Conversion Rate and the date on which each adjustment becomes effective and shall mail such notice of such adjustment of the Conversion Rate to each Holder at its last address appearing on the Note Register. Failure to deliver such notice shall not affect the legality or validity of any such adjustment.

(k) For purposes of this Section 11.04, the number of shares of Common Stock at any time outstanding shall not include shares held in the treasury of the Company so long as the Company does not pay any dividend or make any distribution on shares of Common Stock held in the treasury of the Company, but shall include shares issuable in respect of scrip certificates issued in lieu of fractions of shares of Common Stock.

(l) For purposes of this Section 11.04, “Effective Date” means the first date on which the shares of Common Stock trade on the applicable exchange or in the applicable market, regular way, reflecting the relevant share split or share combination, as applicable.

Section 11.05 Adjustments of Prices . Whenever any provision of the Indenture requires the Company to calculate the Last Reported Sale Prices, the Daily VWAPs, the Daily Conversion Values or the Daily Settlement Amounts over a span of multiple days (including an Observation Period, the period for determining the Stock Price for purposes of a Make-Whole Fundamental Change or Optional Redemption), the Company shall make appropriate adjustments, without duplication in respect of any adjustment made pursuant to Section 11.04, to each to account for any adjustment to the Conversion Rate that becomes effective, or any event requiring an adjustment to the Conversion Rate where the Ex-Dividend Date, Effective Date or expiration date of the event occurs, at any time during the period when such Last Reported Sale Prices, Daily VWAPs, Daily Conversion Values or Daily Settlement Amounts are to be calculated.

Section 11.06 Shares to Be Fully Paid . The Company shall provide, free from preemptive rights, out of its authorized but unissued shares or shares held in treasury, sufficient shares of Common Stock to provide for conversion of the Notes from time to time as such Notes are presented for conversion (assuming that at the time of computation of such number of shares, all such Notes would be converted by a single Holder and that Physical Settlement is applicable).

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Section 11.07 Effect of Recapitalizations, Reclassifications and Changes of the Common Stock .

(a) In the case of:

(i) any recapitalization, reclassification or change of the Common Stock (other than changes resulting from a subdivision or combination),

(ii) any consolidation, merger or combination involving the Company,

(iii) any sale, lease or other transfer to a third party of the consolidated assets of the Company and the Company’s Subsidiaries substantially as an entirety, or

(iv) any statutory share exchange,

in each case, as a result of which the Common Stock would be converted into, or exchanged for, stock, other securities, other property or assets (including cash or any combination thereof) (any such event, a “ Merger Event ”), then the Company, or the successor or purchasing company, as the case may be, will execute with the Trustee and without the consent of the Holders, a supplemental indenture providing that, at and after the effective time of such Merger Event, the right to convert each $1,000 principal amount of Notes shall be changed into a right to convert such principal amount of Notes into the kind and amount of shares of stock, other securities or other property or assets (including cash or any combination thereof) that a holder of a number of shares of Common Stock equal to the Conversion Rate immediately prior to such Merger Event would have owned or been entitled to receive (the “ Reference Property ,” with each “ unit of Reference Property ” meaning the kind and amount of Reference Property that a holder of one share of Common Stock is entitled to receive) upon such Merger Event; provided , however , that at and after the effective time of the Merger Event (A) the Company shall continue to have the right to determine the form of consideration to be paid or delivered, as the case may be, upon conversion of Notes in accordance with Section 11.02 and (B) (I) any amount payable in cash upon conversion of the Notes in accordance with Section 11.02 shall continue to be payable in cash, (II) any shares of Common Stock that the Company would have been required to deliver upon conversion of the Notes in accordance with Section 11.02 shall instead be deliverable in the amount and type of Reference Property that a holder of that number of shares of Common Stock would have received in such Merger Event and (III) the Daily VWAP shall be calculated based on the value of a unit of Reference Property.

If the Merger Event causes the Common Stock to be converted into, or exchanged for, the right to receive more than a single type of consideration (determined based in part upon any form of stockholder election), then (i) the Reference Property into which the Notes will be convertible shall be deemed to be the weighted average of the types and amounts of consideration received by the holders of Common Stock that affirmatively make such an election or (ii) if no holders of the Common Stock affirmatively make such an election, the types and amounts of consideration actually received by such holders. The unit of Reference Property for purposes of the immediately preceding paragraph shall refer to the consideration referred to in

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clauses (i) and (ii) of the immediately preceding sentence attributable to one share of Common Stock. The Company will notify holders, the Trustee and the Conversion Agent (if other than the Trustee) in writing of the weighted average as soon as practicable after such determination is made. If the holders of Common Stock receive only cash in such Merger Event, then for all conversions that occur after the effective date of such Merger Event (A) the consideration due upon conversion of each $1,000 principal amount of Notes shall be solely cash in an amount equal to the Conversion Rate in effect on the Conversion Date (as may be increased pursuant to Section 11.03), multiplied by the price paid per share of Common Stock in such Merger Event and (B) the Company shall satisfy the Conversion Obligation by paying cash to converting Holders on the second Business Day immediately following the relevant Conversion Date.

Such supplemental indenture described in the second immediately preceding paragraph shall provide for anti-dilution and other adjustments that shall be as nearly equivalent as is possible to the adjustments provided for in this Article XI. If, in the case of any Merger Event, the Reference Property includes shares of stock, securities or other property or assets (including cash or any combination thereof) of a Person other than the successor or purchasing corporation, as the case may be, in such Merger Event, then such supplemental indenture shall also be executed by such other Person and shall contain such additional provisions to protect the interests of the Holders of the Notes as the Board of Directors or a committee thereof shall reasonably consider necessary by reason of the foregoing, including the provisions providing for the purchase rights set forth in Article XII.

(b) In the event the Company shall execute a supplemental indenture pursuant to subsection (a) of this Section 11.07, the Company shall promptly file with the Trustee an Officers’ Certificate briefly stating the reasons therefor, the kind or amount of cash, securities or property or asset that will comprise a unit of Reference Property after any such Merger Event, any adjustment to be made with respect thereto and that all conditions precedent have been complied with, and shall promptly mail notice thereof to all Holders. The Company shall cause notice of the execution of such supplemental indenture to be given to each Holder, at its address appearing on the Note Register provided for in the Indenture, within 30 days after execution thereof. Failure to deliver such notice shall not affect the legality or validity of such supplemental indenture.

(c) None of the foregoing provisions shall affect the right of a holder of Notes to convert its Notes into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, as set forth in Section 11.01 and Section 11.02 prior to the effective date of such Merger Event.

(d) The above provisions of this Section shall similarly apply to successive Merger Events.

Section 11.08 Certain Covenants . (a) The Company covenants that any shares of Common Stock issued upon conversion of Notes will be validly issued, fully paid and non-assessable by the Company and free from all taxes, liens and charges with respect to the issue thereof.

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(b) The Company further covenants that if at any time the Common Stock shall be listed on any national securities exchange or automated quotation system, the Company will use commercially reasonable efforts to list and keep listed, so long as the Common Stock shall be so listed on such exchange or automated quotation system, any Common Stock issuable upon conversion of the Notes.

Section 11.09 Responsibility of Trustee . The Trustee and any other Conversion Agent shall not at any time be under any duty or responsibility to any Holder to determine the Conversion Rate (or any adjustment thereto) or whether any facts exist that may require any adjustment (including any increase) of the Conversion Rate, or with respect to the nature or extent or calculation of any such adjustment when made, or with respect to the method employed, or herein or in any supplemental indenture provided to be employed, in making the same. The Trustee and any other Conversion Agent shall not be accountable with respect to the validity or value (or the kind or amount) of any shares of Common Stock, or of any securities, property or cash that may at any time be issued or delivered upon the conversion of any Note; and the Trustee and any other Conversion Agent make no representations with respect thereto. Neither the Trustee nor any Conversion Agent shall be responsible for any failure of the Company to issue, transfer or deliver any shares of Common Stock or stock certificates or other securities or property or cash upon the surrender of any Note for the purpose of conversion or to comply with any of the duties, responsibilities or covenants of the Company contained in this Article. Without limiting the generality of the foregoing, neither the Trustee nor any Conversion Agent shall be under any responsibility to determine the correctness of any provisions contained in any supplemental indenture entered into pursuant to Section 11.07 relating either to the kind or amount of shares of stock or securities or property (including cash) receivable by Holders upon the conversion of their Notes after any event referred to in such Section 11.07 or to any adjustment to be made with respect thereto, but, subject to the provisions of, may accept (without any independent investigation) as conclusive evidence of the correctness of any such provisions, and shall be protected in relying upon, the Officers’ Certificate (which the Company shall be obligated to file with the Trustee prior to the execution of any such supplemental indenture) with respect thereto. Neither the Trustee nor the Conversion Agent shall be responsible for determining whether any event contemplated by Section 11.01(b) has occurred that makes the Notes eligible for conversion or no longer eligible therefor until the Company has delivered to the Trustee and the Conversion Agent the notices referred to in Section 11.01(b) with respect to the commencement or termination of such conversion rights, on which notices the Trustee and the Conversion Agent may conclusively rely, and the Company agrees to deliver such notices to the Trustee and the Conversion Agent immediately after the occurrence of any such event or at such other times as shall be provided for in Section 11.01(b). The Conversion Agent (if other than the Company or an Affiliate of the Company) shall have the same protection under this Section 11.09 as the Trustee. Notwithstanding anything herein to the contrary, the Trustee shall have the right to 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 XI and is permitted or authorized by the Indenture.

Section 11.10 Stockholder Rights Plans . To the extent that the Company has a rights plan in effect upon conversion of the Notes, each share of Common Stock, if any, issued upon such conversion shall be entitled to receive the appropriate number of rights, if any, and the certificates representing the Common Stock issued upon such conversion shall bear such

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legends, if any, in each case as may be provided by the terms of any such stockholder rights plan, as the same may be amended from time to time. However, if prior to any conversion of Notes, the rights have separated from the shares of Common Stock in accordance with the provisions of the applicable stockholder rights plan so that the Holders would not be entitled to receive any rights in respect of Common Stock, if any, issuable upon conversion of the Notes, the Conversion Rate shall be adjusted at the time of separation as if the Company distributed to all or substantially all holders of the Common Stock Distributed Property as provided in Section 11.04(c), subject to readjustment in the event of the expiration, termination or redemption of such rights.

ARTICLE XII

REPURCHASE OF NOTES AT OPTION OF HOLDERS

Section 12.01 Repurchase at Option of Holders Upon a Fundamental Change . (a) If a Fundamental Change occurs at any time prior to the maturity of the Notes, each Holder shall have the right, at such Holder’s option, to require the Company to repurchase for cash all of such Holder’s Notes, or any portion thereof that is equal to $1,000 or a multiple of $1,000, on the date (the “ Fundamental Change Repurchase Date ”) specified by the Company that is not less than 20 Business Days or more than 35 Business Days following the date of the Fundamental Change Company Notice at a repurchase price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to, but excluding, the Fundamental Change Repurchase Date (the “ Fundamental Change Repurchase Price ”), unless the Fundamental Change Repurchase Date falls after a Regular Record Date but on or prior to the Interest Payment Date to which such Regular Record Date relates, in which case the Company shall instead pay the full amount of accrued and unpaid interest to Holders of record as of such Regular Record Date, and the Fundamental Change Repurchase Price shall be equal to 100% of the principal amount of Notes to be repurchased pursuant to this Article XII.

(b) Repurchases of Notes under this Section 12.01 shall be made, at the option of the Holder thereof, upon:

(i) delivery to the Paying Agent by a Holder of a duly completed notice (the “ Fundamental Change Repurchase Notice ”) substantially in the form set forth in Attachment 2 to the Form of Note, if the Notes are Physical Notes, or in compliance with the Depositary’s procedures for surrendering interests in Global Notes, if the Notes are Global Notes, in each case on or before the close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date; and

(ii) delivery of the Notes, if the Notes are Physical Notes, to the Paying Agent at any time after delivery of the Fundamental Change Repurchase Notice (together with all necessary endorsements for transfer) at the Corporate Trust Office of the Paying Agent, or book-entry transfer of the Notes, if the Notes are Global Notes, in compliance with the procedures of the Depositary, in each case such delivery being a condition to receipt by the Holder of the Fundamental Change Repurchase Price therefor.

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The Fundamental Change Repurchase Notice in respect of any Notes to be repurchased shall state:

(i) in the case of Physical Notes, the certificate numbers of the Notes to be delivered for repurchase;

(ii) the portion of the principal amount of Notes to be repurchased, which must be $1,000 or an integral multiple thereof; and

(iii) that the Notes are to be repurchased by the Company pursuant to the applicable provisions of the Notes and the Indenture;

provided , however , that if the Notes are Global Notes, the Fundamental Change Repurchase Notice must comply with appropriate Depositary procedures.

Notwithstanding anything herein to the contrary, any Holder delivering to the Paying Agent the Fundamental Change Repurchase Notice contemplated by this Section 12.01 shall have the right to withdraw, in whole or in part, such Fundamental Change Repurchase Notice at any time prior to the close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date by delivery of a written notice of withdrawal to the Paying Agent in accordance with Section 12.02.

The Paying Agent shall promptly notify the Company of the receipt by it of any Fundamental Change Repurchase Notice or written notice of withdrawal thereof.

Notwithstanding this Section 12.01, the Company shall not be required to repurchase, or to make an offer to repurchase, the Notes upon a Fundamental Change if a third party makes an offer in the same manner, at the same time and otherwise in compliance with the requirements for an offer made by the Company as set forth in this Section 12.01 and such third party purchases all Notes properly surrendered and not validly withdrawn under its offer in the same manner, at the same time and otherwise in compliance with the requirements for an offer made by the Company as set forth in this Section 12.01.

(c) On or before the 20th Business Day after the occurrence of a Fundamental Change, the Company shall provide to all Holders of Notes and the Trustee and the Paying Agent (in the case of a Paying Agent other than the Trustee) a notice (the “ Fundamental Change Company Notice ”) of the occurrence of the Fundamental Change and of the repurchase right at the option of the Holders arising as a result thereof. In the case of Physical Notes, such notice shall be by first class mail or, in the case of Global Notes, such notice shall be delivered in accordance with the applicable procedures of the Depositary. Each Fundamental Change Company Notice shall specify:

(i) the events causing the Fundamental Change;

(ii) the effective date of the Fundamental Change;

(iii) the last date on which a Holder may exercise the repurchase right pursuant to this Article XII;

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(iv) the Fundamental Change Repurchase Price;

(v) the Fundamental Change Repurchase Date;

(vi) the name and address of the Paying Agent and the Conversion Agent, if applicable;

(vii) if applicable, the Conversion Rate and any adjustments to the Conversion Rate;

(viii) that the Notes with respect to which a Fundamental Change Repurchase Notice has been delivered by a Holder may be converted only if the Holder validly withdraws the Fundamental Change Repurchase Notice in accordance with the terms of the Indenture; and

(ix) the procedures that Holders must follow to require the Company to repurchase their Notes; provided , however , that, if the Notes are Global Notes, the Holders (and holders of a beneficial interest in such Global Notes) must comply with the applicable procedures of the Depositary.

No failure of the Company to give the foregoing notices and no defect therein shall limit the Holders’ repurchase rights or affect the validity of the proceedings for the repurchase of the Notes pursuant to this Section 12.01.

At the Company’s written request and upon 15 days prior notice (or such shorter period of time as may be acceptable to the Trustee), the Trustee shall give such notice in the Company’s name and at the Company’s expense; provided , however , that, in all cases, the text of such Fundamental Change Company Notice shall be prepared by the Company.

(d) Notwithstanding the foregoing, no Notes may be repurchased by the Company on any date at the option of the Holders upon a Fundamental Change if the principal amount of the Notes has been accelerated, and such acceleration has not been rescinded, on or prior to such date (except in the case of an acceleration resulting from a Default by the Company in the payment of the Fundamental Change Repurchase Price with respect to such Notes). The Paying Agent will promptly return to the respective Holders thereof any Physical Notes held by it during the acceleration of the Notes (except in the case of an acceleration resulting from a Default by the Company in the payment of the Fundamental Change Repurchase Price with respect to such Notes), or any instructions for book-entry transfer of the Notes in compliance with the procedures of the Depositary shall be deemed to have been cancelled, and, upon such return or cancellation, as the case may be, the Fundamental Change Repurchase Notice with respect thereto shall be deemed to have been withdrawn.

Section 12.02 Withdrawal of Fundamental Change Repurchase Notice . (a) A Fundamental Change Repurchase Notice may be withdrawn (in whole or in part) by means of a written notice of withdrawal delivered to the Paying Agent in accordance with this Section 12.02 at any time prior to the close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date, specifying:

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(i) the principal amount of the Notes with respect to which such notice of withdrawal is being submitted,

(ii) if Physical Notes have been issued, the certificate number of the Note in respect of which such notice of withdrawal is being submitted, and

(iii) the principal amount, if any, of such Note that remains subject to the original Fundamental Change Repurchase Notice, which portion must be in principal amounts of $1,000 or a multiple of $1,000;

provided , however , that if the Notes are Global Notes, the notice must comply with the applicable procedures of the Depositary.

Section 12.03 Deposit of Fundamental Change Repurchase Price . (a) The Company will deposit with the Trustee (or other Paying Agent appointed by the Company, or if the Company is acting as its own Paying Agent, set aside, segregate and hold in trust as provided in Section 4.03(c)) on or prior to 11:00 a.m., New York City time, on the Fundamental Change Repurchase Date an amount of money sufficient to repurchase all of the Notes to be repurchased at the appropriate Fundamental Change Repurchase Price. Subject to receipt of funds and/or Notes by the Trustee (or other Paying Agent appointed by the Company), payment for Notes surrendered for repurchase (and not withdrawn prior to the close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date) will be made on the later of (i) the Fundamental Change Repurchase Date with respect to such Note ( provided the Holder has satisfied the conditions in Section 12.01) and (ii) the time of book-entry transfer or the delivery of such Note to the Trustee (or other Paying Agent appointed by the Company) by the Holder thereof in the manner required by Section 12.01 by mailing checks for the amount payable to the Holders of such Notes entitled thereto as they shall appear in the Note Register; provided , however , that payments to the Depositary shall be made by wire transfer of immediately available funds to the account of the Depositary or its nominee. The Trustee shall, promptly after such payment and upon written demand by the Company, return to the Company any funds in excess of the Fundamental Change Repurchase Price.

(b) If by 11:00 a.m. New York City time, on the Fundamental Change Repurchase Date, the Trustee (or other Paying Agent appointed by the Company) holds money sufficient to make payment on all the Notes or portions thereof that are to be repurchased on such Fundamental Change Repurchase Date, then, with respect to Notes that have been properly surrendered for repurchase and have not been validly withdrawn in accordance with the provisions of the Indenture, (i) such Notes will cease to be outstanding, (ii) interest will cease to accrue on such Notes (whether or not book-entry transfer of the Notes has been made or the Notes have been delivered to the Trustee or Paying Agent) and (iii) all other rights of the Holders of such Notes will terminate (other than the right to receive the Fundamental Change Repurchase Price).

(c) Upon surrender of a Note that is to be repurchased in part pursuant to Section 12.01, the Company shall execute and the Trustee shall authenticate and deliver to the Holder a new Note in an authorized denomination equal in principal amount to the unrepurchased portion of the Note surrendered.

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Section 12.04 Covenant to Comply with Applicable Laws Upon Repurchase of Notes . In connection with any repurchase offer, the Company will, if required:

(a) comply with the provisions of any applicable tender offer rules under the Exchange Act;

(b) file a Schedule TO or any other required schedule under the Exchange Act; and

(c) otherwise comply with all federal and state securities laws in connection with any offer by the Company to repurchase the Notes;

in each case, so as to permit the rights and obligations under this Article XII to be exercised in the time and in the manner specified in this Article XII. To the extent that the provisions of any securities laws or regulations enacted after the date the Company initially issues the Notes conflict with the provisions of this Article XII relating to the Company’s obligations to purchase the Notes upon a Fundamental Change, the Company shall comply with the applicable securities laws and regulations and shall not be deemed to have breached its obligations under such provisions of this Article XII by virtue of such conflict.

ARTICLE XIII

REDEMPTION

Section 13.01 Applicability of Article 3 of the Base Indenture . Article 3 of the Base Indenture shall not apply to the Notes. Instead, the redemption provisions set forth in this Article XIII shall, with respect to the Notes, supersede in their entirety such Article 3 of the Base Indenture, and all references in the Base Indenture to such Article 3 or any sections thereof and the redemption provisions therein, as the case may be, shall, with respect to the Notes, be deemed to be references to this Article XIII and the redemption provisions set forth in this Article XIII.

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Section 13.02 Redemption . No sinking fund is provided for the Notes. The Notes shall not be redeemable by the Company prior to February 15, 2022. On or after February 15, 2022, the Company may redeem (an “ Optional Redemption ”) for cash any or all of the Notes, at the Redemption Price, if the Last Reported Sale Price of the Common Stock has been at least 130% of the Conversion Price then in effect for at least 20 Trading Days (whether or not consecutive) during any 30 consecutive Trading Day period (including the last Trading Day of such period) ending on, and including, the Trading Day immediately preceding the date on which the Company provides the Notice of Redemption in accordance with Section 13.03. The Company may not specify a Redemption Date with respect to an Optional Redemption that falls on or after the 26th Scheduled Trading Day immediately preceding the Maturity Date. If less than all of the outstanding Notes are to be redeemed, the Trustee shall select the Notes to be redeemed in principal amounts of $1,000 or multiples of $1,000 by lot, pro rata or by another method the Trustee in its discretion considers reasonable. If only a portion of a Note is subject to redemption and that Note is converted in part, then the converted portion of that Note will be deemed to be from the portion of that Note that was subject to redemption.

Section 13.03 Notice of Redemption . (a) In case the Company exercises its right to redeem any or all of the Notes pursuant to Section 13.02 above, it shall fix a date for redemption (each, a “ Redemption Date ”) and it or, at its written request received by the Trustee not less than 5 Scheduled Trading Days prior to the delivery of a Notice of Redemption (or such shorter period of time as may be acceptable to the Trustee), the Trustee, in the name of and at the expense of the Company, shall deliver or cause to be delivered a notice of such redemption (a “ Notice of Redemption ”) not less than 30 Scheduled Trading Days nor more than 60 calendar days prior to the Redemption Date to each Holder of Notes, the Conversion Agent and the Paying Agent; provided , however , that, if the Company shall give such notice, it shall also give written notice of the Redemption Date to the Trustee. The Redemption Date must be a Business Day.

(b) The Notice of Redemption, if delivered 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 of Redemption or any defect in the Notice of Redemption to the Holder of any Note designated for redemption shall not affect the validity of the proceedings for the redemption of any other Note.

(c) Each Notice of Redemption shall specify:

(i) the Redemption Date;

(ii) that on the Redemption Date, the Redemption Price will become due and payable upon each Note to be redeemed, and that interest thereon, if any, shall cease to accrue on and after the Redemption Date;

(iii) the place or places where such Notes are to be surrendered for payment of the Redemption Price;

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(iv) that Holders may surrender their Notes for conversion at any time prior to the close of business on the Scheduled Trading Day immediately preceding the Redemption Date (unless the Company fails to pay the Redemption Price, in which case a Holder may convert such Notes until the close of business on the Scheduled Trading Day immediately preceding the date on which the Redemption Price has been paid or duly provided for);

(v) the procedures a converting Holder must follow to convert its Notes and the Settlement Method and Specified Cash Amount, if applicable;

(vi) the Conversion Rate and, if applicable, the number of Additional Shares added to the Conversion Rate in accordance with Section 11.03; and

(vii) the CUSIP, ISIN or other similar numbers, if any, assigned to such Notes.

A Notice of Redemption shall be irrevocable.

Section 13.04 Payment of Notes Called for Redemption . (a) If any Notice of Redemption has been given in respect of the Notes in accordance with Section 13.03, the Notes shall become due and payable on the Redemption Date at the place or places stated in the Notice of Redemption and at the Redemption Price. On presentation and surrender of the Notes at the place or places stated in the Notice of Redemption, the Notes shall be paid and redeemed by the Company at the Redemption Price.

(b) Prior to the open of business on the Redemption Date, the Company shall deposit with the Paying Agent or, if the Company or a Subsidiary of the Company is acting as the Paying Agent, shall segregate and hold in trust as provided in Section 4.03(c), an amount of cash (in immediately available funds if deposited on the Redemption Date) sufficient to pay the Redemption Price of all of the Notes to be redeemed on such Redemption Date. Subject to receipt of funds by the Paying Agent, payment for the Notes to be redeemed shall be made on the Redemption Date. The Paying Agent shall, promptly after such payment and upon written demand by the Company, return to the Company any funds in excess of the Redemption Price and any amounts due and owing to the Trustee or Paying Agent.

Section 13.05 Restrictions on Redemption . The Company may not redeem any Notes on any date pursuant to this Article XIII if the principal amount of the Notes has been accelerated in accordance with the terms of the Indenture, and such acceleration has not been rescinded, on or prior to the Redemption Date (except in the case of an acceleration resulting from a Default by the Company in the payment of the Redemption Price with respect to the Notes).

ARTICLE XIV

MISCELLANEOUS PROVISIONS

Section 14.01 Official Acts by Successor Corporation . Any act or proceeding by any provision of the 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 or officer of any corporation or other entity that shall at the time be the lawful sole successor of the Company.

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Section 14.02 Governing Law . (a) Section 11.10 and Section 11.11 of the Base Indenture shall not apply to the Notes. Instead, the governing law and jury trial provisions set forth in Section 14.03(b) shall, with respect to the Notes, supersede in their entirety such Section 11.10 and Section 11.11 of the Base Indenture.

(b) THE INDENTURE AND EACH NOTE, AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO THE INDENTURE AND EACH NOTE, SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK (WITHOUT REGARD TO THE CONFLICTS OF LAWS PROVISIONS THEREOF). EACH OF THE COMPANY AND THE TRUSTEE HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THE INDENTURE, THE NOTES OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.

The Company irrevocably consents and agrees, for the benefit of the Holders from time to time of the Notes and the Trustee, that any legal action, suit or proceeding against it with respect to obligations, liabilities or any other matter arising out of or in connection with the Indenture or the Securities may be brought in the courts of the State of New York or the courts of the United States located in the Borough of Manhattan, New York City, New York and, until amounts due and to become due in respect of the Notes have been paid, hereby irrevocably consents and submits to the non-exclusive jurisdiction of each such court in personam , generally and unconditionally with respect to any action, suit or proceeding for itself in respect of its properties, assets and revenues.

The Company irrevocably and unconditionally waives, to the fullest extent permitted by law, any objection which it may now or hereafter have to the laying of venue of any of the aforesaid actions, suits or proceedings arising out of or in connection with the Indenture brought in the courts of the State of New York or the courts of the United States located in the Borough of Manhattan, New York City, New York and hereby further irrevocably and unconditionally waives and agrees not to plead or claim in any such court that any such action, suit or proceeding brought in any such court has been brought in an inconvenient forum.

Section 14.03 Legal Holidays . In any case where any Interest Payment Date, Fundamental Change Repurchase Date, Conversion Date or Maturity Date is not a Business Day, then any action to be taken on such date need not be taken on such date, but may be taken on the next succeeding Business Day with the same force and effect as if taken on such date, and no interest shall accrue in respect of the delay.

Section 14.04 No Security Interest Created . Nothing in the Indenture or in the Notes, expressed or implied, shall be construed to constitute a security interest under the Uniform Commercial Code or similar legislation, as now or hereafter enacted and in effect, in any jurisdiction.

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Section 14.05 Benefits of Indenture . Nothing in the Indenture or in the Notes, expressed or implied, shall give to any Person, other than the parties thereto, any Paying Agent, any Conversion Agent, any authenticating agent, any Registrar and their successors thereunder or the Holders, any benefit or any legal or equitable right, remedy or claim under the Indenture.

Section 14.06 Table of Contents, Headings, Etc. The table of contents and the titles and headings of the articles and sections of this First Supplemental 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 14.07 Severability . In the event any provision of this First Supplemental Indenture or in the Notes shall be invalid, illegal or unenforceable, then (to the extent permitted by law) the validity, legality or enforceability of the remaining provisions shall not in any way be affected or impaired.

Section 14.08 Counterparts . This First Supplemental Indenture may be executed in any number of counterparts and by the parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. The exchange of copies of this First Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this First Supplemental Indenture as to the parties hereto and may be used in lieu of the original First Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

Section 14.09 Calculations . Except as otherwise provided herein, the Company shall be responsible for making all calculations called for under the Notes. These calculations include, but are not limited to, determinations of the Last Reported Sale Prices of the Common Stock, the Trading Price of the Notes (for purposes of determining whether the Notes are convertible as described in this First Supplemental Indenture), the Daily VWAPs, the Daily Settlement Amounts, the Daily Conversion Values, Redemption Prices, accrued interest payable on the Notes and the Conversion Rate of the Notes. The Company shall make all these calculations in good faith and, absent manifest error, the Company’s calculations shall be final and binding on Holders. The Company shall provide a schedule of its calculations to each of the Trustee and the Conversion Agent, and each of the Trustee and Conversion Agent is entitled to rely conclusively upon the accuracy of the Company’s calculations without independent verification. The Trustee will forward the Company’s calculations to any Holder upon the written request of that Holder at the sole cost and expense of the Company. Neither the Trustee, the Paying Agent nor the Conversion Agent shall be responsible and assume any liability for any calculations under the Notes.

[ Remainder of page intentionally left blank ]

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IN WITNESS WHEREOF, the parties hereto have caused this First Supplemental Indenture to be duly executed as of the date first written above.

EXHIBIT A

FORM OF FACE OF NOTE

[INCLUDE FOLLOWING LEGEND IF A GLOBAL NOTE]

[UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“ DTC ”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.]

OPKO Health, Inc.

4.50% Convertible Senior Note due 2025

OPKO HEALTH, INC., a corporation duly organized and validly existing under the laws of the State of Delaware (the “ Company ,” which term includes any successor corporation or other entity under the Indenture referred to on the reverse hereof), for value received hereby promises to pay to [CEDE & CO.] ¹ [        ] ² , or registered assigns, the principal sum [as set forth in the “Schedule of Exchanges of Notes” attached hereto] ³ [of $            (DOLLARS)] ⁴ , which amount, taken together with the principal amounts of all other outstanding Notes, shall not, unless permitted by the Indenture, exceed $200,000,000 (or $230,000,000 if the underwriter’s overallotment option is exercised in full) in aggregate at any time, in accordance with the rules and procedures of the Depositary, on February 15, 2025 (the “ Maturity Date ”), and interest thereon as set forth below.

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This Note shall accrue interest at the rate of 4.50% per year from February 7, 2019, or from the most recent date for which interest has been paid or provided for to, but excluding, the next scheduled Interest Payment Date. Accrued interest on this Note shall be computed on the basis of a 360-day year composed of twelve 30-day months and, for partial months, on the basis of actual days elapsed over a 30-day month. Interest is payable semi-annually in arrears on each February 15 and August 15, commencing on August 15, 2019, to Holders of record at the close of business on the preceding February 1 and August 1 (whether or not such day is a Business Day), respectively. Additional Interest will be payable as set forth in Section 5.04 of the within-mentioned First Supplemental Indenture, and any reference to interest on, or in respect of, any Note therein shall be deemed to include Additional Interest if, in such context, Additional Interest is, was or would be payable pursuant to Section 5.04 and any express mention of the payment of Additional Interest in any provision therein shall not be construed as excluding Additional Interest in those provisions thereof where such express mention is not made.

Any Defaulted Amounts shall accrue interest per annum at the rate borne by the Notes, subject to the enforceability thereof under applicable law, from, and including, the relevant payment date to, but excluding, the date on which such Defaulted Amounts shall have been paid by the Company, at its election, in accordance with Section 2.03(c) of the First Supplemental Indenture.

The Company shall pay the principal of and interest on this Note, if and so long as such Note is a Global Note, by wire transfer in immediately available funds in lawful money of the United States at the time to the Depositary or its nominee, as the case may be, as the registered Holder of such Note. As provided in and subject to the provisions of the Indenture, the Company shall pay the principal of any Notes (other than Notes that are Global Notes) at the office or agency designated by the Company for that purpose. The Company has initially designated the Trustee as its Paying Agent and Registrar in respect of the Notes and its Corporate Trust Office as a place where Notes may be presented for payment or for registration of transfer and exchange.

Reference is made to the further provisions of this Note set forth on the reverse hereof, including, without limitation, provisions giving the Holder of this Note the right to convert this Note into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, on the terms and subject to the limitations set forth in the Indenture. Such further provisions shall for all purposes have the same effect as though fully set forth at this place.

This Note, and any claim, controversy or dispute arising under or related to this Note, shall be construed in accordance with and governed by the laws of the State of New York (without regard to the conflicts of laws provisions thereof).

In the case of any conflict between this Note and the Indenture, the provisions of the Indenture shall control and govern.

This Note shall not be valid or become obligatory for any purpose until the certificate of authentication hereon shall have been manually signed by the Trustee or a duly authorized authenticating agent under the Indenture.

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IN WITNESS WHEREOF, the Company has caused this Note to be duly executed.

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CERTIFICATE OF AUTHENTICATION

This is one of the Notes issued by OPKO Health, Inc. described in the within-mentioned Indenture.

Date:                                              

[FORM OF REVERSE OF NOTE]

OPKO Health, Inc.

4.50% Convertible Senior Note due 2025

This Note is one of a duly authorized issue of Notes of the Company, designated as its 4.50% Convertible Senior Notes due 2025 (the “ Notes ”), initially limited to the aggregate principal amount of $200,000,000 (or $230,000,000 if the underwriter’s overallotment option is exercised in full), all issued or to be issued under and pursuant to an Indenture dated as of February 7, 2019 (the “ Base Indenture ”), as amended and supplemented by the First Supplemental indenture dated as of February 7, 2019 (herein called the “ First Supplemental Indenture ”; the Base Indenture, as amended and supplemented by the First Supplemental Indenture, the “ Indenture ”), by and between the Company and U.S. Bank National Association (the “ Trustee ”), to which Indenture and all indentures supplemental thereto 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 Notes. Additional Notes may be issued in an unlimited aggregate principal amount, subject to certain conditions specified in the Indenture. Capitalized terms used in this Note and not defined in this Note shall have the respective meanings set forth in the Indenture.

In the event of certain Events of Default (other than an Event of Default specified in Section 5.02(i) or Section 5.02(j) of the First Supplemental Indenture with respect to the Company or any of its Significant Subsidiaries) shall have occurred and be continuing, the principal of, and interest on, all Notes may be declared, by either the Trustee or Holders of at least 25% in aggregate principal amount of the Notes then outstanding, and upon said declaration shall become, due and payable, in the manner, with the effect and subject to the conditions and certain exceptions set forth in the Indenture.

Subject to the terms and conditions of the Indenture, the Company will make all payments and deliveries in respect of the Fundamental Change Repurchase Price on the Fundamental Change Repurchase Date (if applicable), the Redemption Price on any Redemption Date (if applicable) and the principal amount on the Maturity Date, as the case may be, to the Holder who surrenders a Note to a Paying Agent to collect such payments in respect of the Note. The Company will pay cash amounts in money of the United States that at the time of payment is legal tender for payment of public and private debts.

The Indenture contains provisions permitting the Company and the Trustee in certain circumstances, without the consent of the Holders of the Notes, and in certain other circumstances, with the consent of the Holders of not less than a majority in aggregate principal amount of the Notes at the time outstanding, evidenced as in the Indenture provided, to execute supplemental indentures modifying the terms of the Indenture and the Notes as described therein. It is also provided in the Indenture that, subject to certain exceptions, the Holders of a majority in aggregate principal amount of the Notes at the time outstanding may on behalf of the Holders of all of the Notes waive any past Default or Event of Default under the Indenture and its consequences.

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No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay or deliver, as the case may be, the principal (including the Redemption Price and the Fundamental Change Repurchase Price, if applicable) of, accrued and unpaid interest on, and the consideration due upon conversion of, this Note at the place, at the respective times, at the rate and in the lawful money herein prescribed.

The Notes are issuable in registered form without coupons in denominations of $1,000 principal amount and integral multiples thereof. At the office or agency of the Company referred to on the face hereof, and in the manner and subject to the limitations provided in the Indenture, Notes may be exchanged for a like aggregate principal amount of Notes of other authorized denominations, without payment of any service charge but, if required by the Company or Trustee, with payment of a sum sufficient to cover any transfer or similar tax that may be imposed in connection therewith as a result of the name of the Holder of the new Notes issued upon such exchange of Notes being different from the name of the Holder of the old Notes surrendered for such exchange.

The Notes shall be redeemable at the Company’s option in accordance with the terms and subject to the conditions specified in the Indenture. No sinking fund is provided for the Notes.

Upon the occurrence of a Fundamental Change, the Holder has the right, at such Holder’s option, to require the Company to repurchase for cash all of such Holder’s Notes or any portion thereof (in principal amounts of $1,000 or multiples thereof) on the Fundamental Change Repurchase Date at a price equal to the Fundamental Change Repurchase Price.

Subject to the provisions of the Indenture, the Holder hereof has the right, at its option, during certain periods and upon the occurrence of certain conditions specified in the Indenture, prior to the close of business on the Business Day immediately preceding the Maturity Date, to convert any Notes or portion thereof that is $1,000 or a multiple thereof, into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, at the Conversion Rate specified in the Indenture, as adjusted from time to time as provided in the Indenture.

Terms used in this Note and defined in the Indenture are used herein as therein defined.

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ABBREVIATIONS

The following abbreviations, when used in the inscription of the face of this Note, shall be construed as though they were written out in full according to applicable laws or regulations:

TEN COM = as tenants in common

UNIF GIFT MIN ACT = Uniform Gifts to Minors Act

CUST = Custodian

TEN ENT = as tenants by the entireties

JT TEN = joint tenants with right of survivorship and not as tenants in common

Additional abbreviations may also be used though not in the above list.

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ATTACHMENT 1

[FORM OF NOTICE OF CONVERSION]

To: OPKO Health, Inc.

To:    U.S. Bank National Association, as trustee

Two Midtown Plaza

1349 West Peachtree Street N.W., Suite 1050

Atlanta, GA 30309

Attention: George Hogan (OPKO Health, Inc. 4.50% Convertible Senior Notes due 2025)

The undersigned registered owner of this Note hereby exercises the option to convert this Note, or the portion hereof (that is $1,000 principal amount or a multiple thereof) below designated, into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, in accordance with the terms of the Indenture referred to in this Note, and directs that any cash payable and any shares of Common Stock issuable and deliverable upon such conversion, together with any cash for any fractional share, and any Notes representing any unconverted principal amount hereof, be issued and delivered to the registered Holder hereof unless a different name has been indicated below. If any shares of Common Stock or any portion of this Note not converted are to be issued in the name of a Person other than the undersigned, the undersigned will pay all documentary, stamp or similar issue or transfer taxes, if any in accordance with Section 11.02(d) and Section 11.02(e) of the First Supplemental Indenture. Any amount required to be paid to the undersigned on account of interest accompanies this Note.