Exhibit 1.1

AFFILIATED MANAGERS GROUP, INC.

$350,000,000

3.500% SENIOR NOTES DUE AUGUST 1, 2025

UNDERWRITING AGREEMENT

DATED FEBRUARY 10, 2015

Underwriting Agreement

February 10, 2015

Merrill Lynch, Pierce, Fenner & Smith

Incorporated

Citigroup Global Markets Inc.

J.P. Morgan Securities LLC

As Representatives of the several Underwriters

listed in Schedule I hereto

c/o Merrill Lynch, Pierce, Fenner & Smith

Incorporated

One Bryant Park

New York, New York 10036

c/o Citigroup Global Markets Inc.

388 Greenwich Street

New York, NY 10013

c/o J.P. Morgan Securities LLC

383 Madison Avenue

New York, NY 10179

Ladies and Gentlemen:

Affiliated Managers Group, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several underwriters listed in Schedule I hereto (the “Underwriters”), for whom you are acting as representatives (the “Representatives”), $350,000,000 aggregate principal amount of its 3.500% Senior Notes due August 1, 2025 (the “Securities”).  The Securities will be issued pursuant to a base indenture dated as of February 11, 2014, as supplemented by a Second Supplemental Indenture to be dated as of February 13, 2015 (collectively, the “ Indenture ”), each between the Company and U.S. Bank National Association, as trustee (the “ Trustee ”).

The Company hereby confirms its agreement with the several Underwriters concerning the purchase and sale of the Securities, as follows:

Section 1.  Registration Statement .  The Company has prepared and filed with the Securities and Exchange Commission (the “ Commission ”) under the Securities Act of 1933, as amended, and the rules and regulations of the Commission thereunder (collectively, the “ Securities Act ”), an “automatic shelf registration statement,” as defined in Rule 405 under the Securities Act, on Form S-3 (File No. 333-190402), including a prospectus, to be used in connection with the public offering and sale of the Securities, which incorporates by reference documents that the Company has filed or will file in accordance with the provisions of the Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder (the “ Exchange Act ”).  Such registration statement, as it may have heretofore been amended, including the information, if any, deemed pursuant to Rule 430A, 430B or 430C under the Securities Act to be part of the registration statement at the time of its effectiveness (“ Rule 430 Information ”), is referred to herein as the “ Registration Statement ”; and as used herein, the term “ Preliminary Prospectus ” means each prospectus included in such registration statement (and any amendments thereto) at the time it became

effective and the prospectus included in the Registration Statement at its most recent effective date that omits Rule 430 Information, and the term “ Prospectus ” means the prospectus in the form first used (or made available upon request of purchasers pursuant to Rule 173 under the Securities Act) in connection with confirmation of sales of the Securities.  Any reference in this Agreement to the Registration Statement, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include the documents incorporated by reference therein pursuant to Item 12 of Form S-3 under the Securities Act, as of the effective date of the Registration Statement or the date of such Preliminary Prospectus or the Prospectus, as the case may be and any reference to “amend”, “amendment” or “supplement” with respect to the Registration Statement, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any documents filed after such date under the Exchange Act that are deemed to be incorporated by reference therein.  Capitalized terms used but not defined herein shall have the meanings given to such terms in the Registration Statement and the Prospectus.

At or prior to the time when sales of the Securities were first made (the “ Time of Sale ”), the Company had prepared the following information (collectively, the “ Time of Sale Information ”), a Preliminary Prospectus dated February 10, 2015, and each “free-writing prospectus” (as defined pursuant to Rule 405 under the Securities Act) listed on Annex B hereto as constituting part of the Time of Sale Information.

Section 2.  Purchase of the Securities by the Underwriters .

(a)                                  The Company agrees to issue and sell the Securities to the several Underwriters as provided in this Agreement, and each Underwriter, on the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, agrees, severally and not jointly, to purchase from the Company the respective principal amount of Securities set forth opposite such Underwriter’s name in Schedule I hereto at a price equal to 98.589% of the principal amount thereof ($345,061,500 purchase price in respect of $350,000,000 aggregate principal amount), plus accrued interest, if any, from February 13, 2015 to the Time of Delivery (as defined below) (the “ Purchase Price ”).

The Company understands that the Underwriters intend to make a public offering of the Securities as soon after the effectiveness of this Agreement as in the judgment of the Representatives is advisable, and initially to offer the Securities on the terms set forth in the Prospectus.  The Company acknowledges and agrees that the Underwriters may offer and sell Securities to or through any affiliate of an Underwriter and that any such affiliate may offer and sell Securities purchased by it to or through any Underwriter.  The Company will not be obligated to deliver any of the Securities except upon payment for all the Securities to be purchased as provided herein.

(b)                                  Payment for and delivery with respect to the Securities will be made at the offices of Cleary Gottlieb Steen & Hamilton LLP, One Liberty Plaza, New York, NY 10006 at 10:00 A.M., New York City time, on February 13, 2015, or at such other time or place on the same or such other date, not later than the third business day thereafter, as the Representatives and the Company may agree upon in writing.  The time and date of payment and delivery for the Securities is referred to herein as the “ Time of Delivery .”

(c)                                   Payment for the Securities shall be made by wire transfer in immediately available funds to the account(s) specified by the Company to the Representatives against delivery to the nominee of The Depository Trust Company (“DTC”), for the account of the Underwriters, of one or more global notes representing the Securities (collectively, the “ Global Note ”), with any transfer taxes payable in connection with the sale of the Securities duly paid by the Company.  The Global Note will be made available for inspection by the Representatives not later than 1:00 P.M., New York City time, on the business day prior to the Time of Delivery.

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(d)                                  The Company acknowledges and agrees that the Underwriters are acting solely in the capacity of an arm’s length contractual counterparty to the Company with respect to the offering of the Securities contemplated hereby (including in connection with determining the terms of the offering) and not as a financial advisor or a fiduciary to, or an agent of, the Company or any other person.  Additionally, neither the Representatives nor any other Underwriter is advising the Company or any other person as to any legal, tax, investment, accounting or regulatory matters in any jurisdiction.  The Company shall consult with its own advisors concerning such matters and shall be responsible for making its own independent investigation and appraisal of the transactions contemplated hereby, and the Underwriters shall have no responsibility or liability to the Company with respect thereto.  Any review by the Underwriters of the Company, the transactions contemplated hereby or other matters relating to such transactions will be performed solely for the benefit of the Underwriters and shall not be on behalf of the Company.

Section 3.  Representations and Warranties of the Company .  The Company represents and warrants to each Underwriter that:

(a)                                  Preliminary Prospectus.   No order preventing or suspending the use of any Preliminary Prospectus has been issued by the Commission, and each Preliminary Prospectus, at the time of filing thereof, complied in all material respects with the Securities Act and did not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in any Preliminary Prospectus.

(b)                                  Time of Sale Information . The Time of Sale Information, at the Time of Sale did not, and at the Time of Delivery will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in such Time of Sale Information.  No statement of material fact included in the Prospectus was omitted from the Time of Sale Information if such statement of material fact would have been necessary to make the statements in the Time of Sale Information, in light of the circumstances under which they were made, not misleading, and no statement of material fact included in the Time of Sale Information that is required to be included in the Prospectus has been omitted therefrom.

(c)                                   Issuer Free Writing Prospectus.  The Company (including its agents and representatives, other than the Underwriters in their capacity as such) has not prepared, made, used, authorized, approved or referred to and will not prepare, make, use, authorize, approve or refer to any “written communication” (as defined in Rule 405 under the Securities Act) that constitutes an offer to sell or solicitation of an offer to buy the Securities (each such communication by the Company or its agents and representatives (other than a communication referred to in clauses (i) (ii) and (iii) below) an “ Issuer Free Writing Prospectus ”) other than (i) any document not constituting a prospectus pursuant to Section 2(a)(10)(a) of the Securities Act or Rule 134 under the Securities Act, (ii) the Preliminary Prospectus, (iii) the Prospectus, (iv) the documents listed on Annex B hereto as constituting the Time of Sale Information and (v) any electronic road show or other written communications, in each case approved in writing in advance by the Representatives.  Each such Issuer Free Writing Prospectus complied in all material respects with the Securities Act, has been or will be (within the time period specified in Rule 433 under the Securities Act) filed in accordance with the

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Securities Act (to the extent required thereby) and, when taken together with the Preliminary Prospectus accompanying, or delivered prior to delivery of, or filed prior to the first use of such Issuer Free Writing Prospectus, did not, and at the Time of Delivery, will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to any statements or omissions made in each such Issuer Free Writing Prospectus in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in any Issuer Free Writing Prospectus.

(d)                                  Registration Statement and Prospectus.   The Registration Statement is an “automatic shelf registration statement” as defined in Rule 405 under the Securities Act that has been filed with the Commission not earlier than three years prior to the date hereof; and no notice of objection of the Commission to the use of such registration statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act has been received by the Company.  No order suspending the effectiveness of the Registration Statement has been issued by the Commission and no proceeding for that purpose or pursuant to Section 8A of the Securities Act against the Company or related to the offering has been initiated or threatened by the Commission; as of the applicable effective date of the Registration Statement and any amendment thereto, the Registration Statement complied and will comply in all material respects with the Securities Act and the Trust Indenture Act of 1939, as amended, and the rules and regulations of the Commission thereunder (collectively, the “ Trust Indenture Act ”), and did not and will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein not misleading; and as of the date of the Prospectus and any amendment or supplement thereto and as of the Time of Delivery, the Prospectus will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to (i) that part of the Registration Statement that constitutes the Statement of Eligibility and Qualification (Form T-1) of the Trustee under the Trust Indenture Act or (ii) any statements or omissions made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in the Registration Statement and the Prospectus and any amendment or supplement thereto.

(e)                                   Incorporated Documents.  Each document filed or to be filed pursuant to the Exchange Act and incorporated by reference in the Registration Statement, the Time of Sale Information or the Prospectus complied when it was filed, or will comply when it is filed, as the case may be, in all material respects with the Exchange Act and, when read together with the other information in the Registration Statement, the Time of Sale Information or the Prospectus, (a) at the Time of Sale and (b) at the Time of Delivery, each document filed and incorporated by reference will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading.

(f)                                    Statements in the Registration Statement, the Time of Sale Information and the Prospectus .  The statements in the Registration Statement, the Time of Sale Information and the Prospectus under the heading “Certain Material United States Federal Income Tax Consequences” insofar as such statements summarize legal matters, agreements, documents or proceedings discussed therein, are accurate and fair summaries of such legal matters, agreements, documents or proceedings.

(g)                                   Authorization of the Underwriting Agreement .  This Agreement has been duly authorized, executed and delivered by the Company.

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(h)                                  Authorization of the Indenture.  The Indenture has been duly authorized by the Company and duly qualified under the Trust Indenture Act and, when duly executed and delivered in accordance with its terms by each of the parties thereto, will constitute a valid and legally binding agreement of the Company enforceable against the Company in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency or similar laws affecting the enforcement of creditors’ rights generally or by equitable principles relating to enforceability.

(i)                                      Authorization of the Securities .  The Securities have been duly authorized by the Company and, at the Time of Delivery, will have been duly executed by the Company and, when authenticated, issued and delivered in the manner provided for in the Indenture and delivered to the Underwriters against payment of the purchase price therefor as described in the Registration Statement, the Time of Sale Information and the Prospectus, will constitute valid and binding obligations of the Company, entitled to the benefits of the Indenture and enforceable against the Company in accordance with their terms, except as the enforcement thereof may be limited by applicable bankruptcy, insolvency or similar laws affecting the enforcement of creditors’ rights generally or by equitable principles relating to enforceability.

(j)                                     Descriptions of the Transaction Documents .  The description of this Agreement, the Securities and the Indenture (collectively, the “ Transaction Documents ”) set forth in the Registration Statement, the Time of Sale Information and the Prospectus is correct in all material respects.

(k)                                  No Material Adverse Effect.   Since September 30, 2014, except as set forth in the Registration Statement, the Time of Sale Information and the Prospectus, (i) there has been no material adverse change or prospective material adverse change in the business, management, financial position, stockholders equity or results of operations of the Company and its subsidiaries considered as one enterprise from that set forth in the Registration Statement, the Time of Sale Information and the Prospectus, whether or not arising in the ordinary course of business (a “ Material Adverse Effect ”), (ii) there have been no transactions entered into by the Company or any of its subsidiaries, other than those in the ordinary course of business or otherwise publicly disclosed, which are material with respect to the Company and its subsidiaries considered as one enterprise, and (iii) there has been no dividend or distribution of any kind declared, paid or made by the Company on any class of its capital stock.

(l)                                      Independent Accountants .  PricewaterhouseCoopers LLP, who have expressed their opinion with respect to the audited financial statements (which term as used in this Agreement includes the related notes thereto) and supporting schedules included as a part of, or incorporated by reference in, the Registration Statement, the Time of Sale Information and the Prospectus, are independent registered public accountants with respect to the Company as required by the Securities Act and the applicable published rules and regulations thereunder.

(m)                              Financial Statements.   The financial statements included in or incorporated by reference into the Registration Statement, the Time of Sale Information and the Prospectus, together with the related schedules and notes, present fairly in all material respects (i) the financial position of the Company and its consolidated subsidiaries at the dates indicated and (ii) the consolidated statements of income, changes in stockholders’ equity and cash flows of the Company and its consolidated subsidiaries for the periods specified; said financial statements have been prepared in conformity with generally accepted accounting principles (“ GAAP ”) applied on a consistent basis throughout the periods involved, except as stated therein.  The supporting schedules incorporated by reference into the Registration Statement, the Time of Sale Information and the Prospectus present fairly, in accordance with GAAP, the information required to be stated therein.  Any pro forma financial statements of the Company, and the related notes thereto, included in or incorporated by reference into the Registration Statement and the Prospectus present fairly in all material respects the information shown therein, have been prepared in accordance with the Commission’s

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rules and guidelines with respect to pro forma financial statements and have been properly compiled on the basis described therein, and the assumptions used in the preparation thereof are reasonable and the adjustments used therein are appropriate to give effect to the transactions and circumstances referred to therein.  The summary financial information included in the Registration Statement, the Time of Sale Information and the Prospectus present fairly in all material respects the information shown therein, and have been compiled on a basis consistent in all material respects with that of the audited financial statements included in or incorporated by reference in the Registration Statement, the Time of Sale Information and the Prospectus.  No other financial statements are required to be set forth in or incorporated by reference into the Registration Statement or the Prospectus under the 1933 Act or the 1933 Act Regulations.

(n)                                  Good Standing of the Company.   The Company has been duly organized and is validly existing as a corporation in good standing under the laws of the State of Delaware and has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Registration Statement, the Time of Sale Information and the Prospectus and to enter into and perform its obligations under, or as contemplated by, this Agreement.  The Company is duly qualified as a foreign corporation to transact business and is in good standing in each other jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure so to qualify or to be in good standing would not result in a Material Adverse Effect.

(o)                                  Good Standing of Subsidiaries .  Each subsidiary of the Company has been duly organized or formed and is validly existing as a corporation, limited partnership, limited liability company, Massachusetts business trust or general partnership, as the case may be, under the laws of its jurisdiction of organization and is in good standing under the laws of its jurisdiction of organization, has power (corporate or otherwise) and authority to own, lease and operate its properties and to conduct its business as described in the Registration Statement, the Time of Sale Information and the Prospectus and is duly qualified as a foreign corporation, limited partnership, limited liability company, Massachusetts business trust or general partnership, as the case may be, to transact business and is in good standing in each jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or to be in good standing would not result in a Material Adverse Effect.  Except as otherwise disclosed in the Registration Statement, the Time of Sale Information and Prospectus, all of the issued shares of capital stock of each subsidiary of the Company which is a corporation, have been duly authorized and validly issued and are fully paid and non-assessable, and to the extent owned by the Company or any of its subsidiaries (except for directors’ qualifying shares and as described or reflected generally in the Registration Statement, the Time of Sale Information and the Prospectus) are owned directly or indirectly by the Company, free and clear of all liens, encumbrances, equities or claims, in each case with such exceptions, individually or in the aggregate, as would not have a Material Adverse Effect.  The partnership interests, membership interests and shares of beneficial interest of each subsidiary of the Company which is a partnership, limited liability company or Massachusetts business trust have been validly issued in accordance with applicable law and the partnership agreement, limited liability agreement or declaration of trust, as applicable, of such subsidiary, and to the extent owned by the Company or any of its subsidiaries (except as described or reflected generally in the Registration Statement, the Time of Sale Information and the Prospectus) are owned directly or indirectly by the Company, free and clear of all liens, encumbrances, equities or claims, except, in the case of each subsidiary of the Company, for liens, encumbrances, equities or claims which individually or in the aggregate would not be material to the Company’s ownership of such subsidiary or to the Company’s exercise of its rights with respect to such subsidiary; and none of the outstanding shares of capital stock, partnership interests, membership interests or shares of beneficial interests, as the case may be, of any subsidiary of the Company was issued in violation of the preemptive or similar rights of any securityholder of such subsidiary.

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(p)                                  Capitalization.   The Company has the authorized, issued and outstanding capitalization described in the Registration Statement, the Time of Sale Information and the Prospectus (except for subsequent issuances, if any, pursuant to reservations, agreements or employee benefit plans or pursuant to the exercise of convertible securities or options or upon the redemption or repurchase of outstanding securities, in each case accurately described or reflected in the Registration Statement, the Time of Sale Information and the Prospectus, as amended or supplemented).  The shares of issued and outstanding capital stock of the Company have been duly authorized and validly issued and are fully paid and non-assessable; and none of the outstanding shares of capital stock of the Company was issued in violation of the preemptive or other similar rights of any securityholder of the Company.  There are no authorized or outstanding options, warrants, preemptive rights, rights of first refusal or other rights to purchase, or equity or debt securities convertible into or exchangeable or exercisable for, any capital stock of the Company or any of its subsidiaries other than those accurately described or reflected in the Registration Statement, the Time of Sale Information and the Prospectus, as amended or supplemented, or pursuant to reservations, agreements or employee benefit plans or the exercise of convertible securities or options or upon the redemption or repurchase of outstanding securities, in each case accurately described or reflected in the Time of Sale Information and the Prospectus, as amended or supplemented.

(q)                                  Absence of Defaults and Conflicts.   Neither the Company nor any of its subsidiaries is in violation of its charter or by-laws or other constituting or organizational document or in default in the performance or observance of any obligation, agreement, covenant or condition contained in any contract, indenture, mortgage, deed of trust, loan or credit agreement, note, lease or other agreement or instrument to which the Company or any of its subsidiaries is a party, or by which it or any of them may be bound, or to which any of the property or assets of the Company or any subsidiary of the Company is subject (collectively, “ Agreements and Instruments ”), except for such defaults that would not result in a Material Adverse Effect; and the execution, delivery and performance of each of the Transaction Documents and any other agreement or instrument entered into or issued, or to be entered into or issued by, the Company in connection with the transactions contemplated hereby or thereby or in the Registration Statement, the Time of Sale Information and the Prospectus and the consummation of the transactions contemplated herein and in the Registration Statement, the Time of Sale Information and the Prospectus (including the issuance and sale of the Securities by the Company and the use of the proceeds by the Company from the sale of the Securities as described in the Registration Statement, the Time of Sale Information and the Prospectus under the caption “Use of Proceeds”) and compliance by the Company with its obligations hereunder and thereunder, have been duly authorized by all necessary corporate action and do not, whether with or without the giving of notice or passage of time or both, conflict with or constitute a breach of, or default or Repayment Event (as defined below) under, or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Company or any subsidiary of the Company pursuant to, the Agreements and Instruments (except for such conflicts, breaches or defaults or liens, charges or encumbrances that would not result in a Material Adverse Effect), nor will such action result in any violation of the provisions of the charter or by-laws or other constituting or organizational instrument as in effect on the date hereof of the Company or any subsidiary of the Company or any applicable law, statute, rule, regulation, judgment, order, writ or decree of any government, government instrumentality or court, domestic or foreign, having jurisdiction over the Company or any subsidiary of the Company or any of their assets, properties or operations, except for any such violation of any applicable law, statute, rule, regulation, judgment, order, writ or decree of law which would not result in a Material Adverse Effect.  As used herein, a “Repayment Event” means any event or condition which gives the holder of any note, debenture or other evidence of indebtedness (or any person acting on such holder’s behalf) the right to require the repurchase, redemption or repayment of all or a portion of such indebtedness by the Company or any subsidiary of the Company.

(r)                                     Absence of Further Requirements .  No filing with, or authorization, approval, consent, license, order, registration, qualification or decree of, any court or governmental authority or agency is

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necessary or required for the performance by the Company of its obligations hereunder or under the Transaction Documents, in connection with the transactions contemplated thereby (including, without limitation, the offering, issuance or sale of the Securities hereunder, or the consummation of the transactions contemplated by the Transaction Documents) or for the due execution, delivery or performance of the Transaction Documents, except such as have been already obtained or as may be required under the Securities Act and the rules and regulations thereunder or state securities laws and except for the qualification of the Indenture under the Trust Indenture Act.

(s)                                    No Material Actions or Proceedings.   Except as disclosed in the Registration Statement, the Time of Sale Information and the Prospectus, there is no action, suit, proceeding, inquiry or investigation before or brought by any court or governmental agency or body, domestic or foreign, now pending, or, to the knowledge of the Company, threatened, against or affecting the Company or any subsidiary, which, singly or in the aggregate, would reasonably be expected to result in a Material Adverse Effect, or which would reasonably be expected to materially and adversely affect the consummation of the transactions contemplated in the Transaction Documents or the performance by the Company of its obligations hereunder or thereunder.

(t)                                     Accuracy of Exhibits .  All of the descriptions of contracts or other documents contained or incorporated by reference in the Registration Statement, the Time of Sale Information and the Prospectus are accurate and complete descriptions in all material respects of such contracts or other documents.

(u)                                  Possession of Licenses and Permits.   The Company and its subsidiaries possess such permits, licenses, approvals, consents and other authorizations (collectively, “ Governmental Licenses ”) issued by the appropriate federal, state, local or foreign regulatory agencies or bodies necessary to conduct the business now operated by them; the Company and its subsidiaries are in compliance with the terms and conditions of all such Governmental Licenses, except in any such case where the failure to so possess or to comply would not, singly or in the aggregate, have a Material Adverse Effect; all of the Governmental Licenses are valid and in full force and effect, except where the invalidity of such Governmental Licenses or the failure of such Governmental Licenses to be in full force and effect would not have a Material Adverse Effect; and neither the Company nor any of its subsidiaries has received any notice of proceedings relating to the revocation or modification of any such Governmental Licenses which, singly or in the aggregate, if the subject of an unfavorable decision, ruling or finding, would result in a Material Adverse Effect.

(v)                                  Title to Properties.  The Company and its subsidiaries have good and marketable title to all real property owned by the Company and its subsidiaries and good title to all other properties owned by them, in each case, free and clear of all mortgages, pledges, liens, security interests, claims, restrictions or encumbrances of any kind except such as (a) are described in the Registration Statement, the Time of Sale Information and the Prospectus or (b) would not, singly or in the aggregate, result in a Material Adverse Effect; and all of the leases and subleases material to the business of the Company and its subsidiaries, considered as one enterprise, and under which the Company or any of its subsidiaries holds properties described in the Registration Statement, the Time of Sale Information and the Prospectus, are in full force and effect, and neither the Company nor any subsidiary of the Company has any notice of any material claim of any sort that has been asserted by anyone adverse to the rights of the Company or any subsidiary of the Company under any of the leases or subleases mentioned above, or affecting or questioning the rights of the Company or such subsidiary to the continued possession of the leased or subleased premises under any such lease or sublease.

(w)                                No Investment Company.   Neither the Company nor any of its subsidiaries is, or, upon the issuance and sale by the Company of the Securities as herein contemplated and the application of the proceeds therefrom as described in the Registration Statement, the Time of Sale Information and the Prospectus, will be, an “investment company” or an entity “controlled” by an “investment company” as

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such terms are defined in the Investment Company Act of 1940, as amended, and the rules and regulations of the Commission thereunder (collectively, the “ Investment Company Act ”).

(x)                                  Company Not an Investment Adviser.   The Company is not required to register as an “investment adviser” or as a “broker-dealer” within the Investment Advisers Act of 1940, as amended, and the rules and regulations of the Commission thereunder (collectively, the “ Advisers Act ”) or the Exchange Act.  The Company is not required to be registered, licensed or qualified as an investment adviser or broker-dealer under the laws requiring any such registration, licensing or qualification in any jurisdiction in which it or its subsidiaries conduct business.  Each of the subsidiaries has been duly registered as an investment adviser under the Advisers Act, and has been duly registered as a broker-dealer under the Exchange Act, and each such registration is in full force and effect, in each case to the extent such registration is required and with such exceptions as would not reasonably be expected to have a Material Adverse Effect.  Each of the subsidiaries is duly registered, licensed or qualified as an investment adviser and broker-dealer under state and local laws where such registration, licensing or qualification is required by such laws and is in compliance with all such laws requiring any such registration, licensing or qualification, in each case with such exceptions, individually or in the aggregate, as would not reasonably be expected to have a Material Adverse Effect.

(y)                                  Compliance with Laws.   Each subsidiary of the Company which is required to be registered as an investment adviser or broker-dealer is and has been in compliance with all applicable laws and governmental rules and regulations, as may be applicable to its investment advisory or broker-dealer business, except to the extent that such non-compliance would not reasonably be expected to result in a Material Adverse Effect and none of such subsidiaries is prohibited by any provision of the Advisers Act or the Investment Company Act from acting as an investment adviser.  Each subsidiary of the Company which is required to be registered as a broker-dealer is a member in good standing of the Financial Industry Regulatory Authority (“ FINRA ”).  No subsidiary of the Company which is required to be registered as an investment adviser or broker-dealer is in default with respect to any judgment, order, writ, injunction, decree, demand or assessment issued by any court or any foreign, federal, state, municipal or other governmental agency, board, commission, bureau, instrumentality or department, domestic or foreign, or by any self-regulatory authority relating to any aspect of its investment advisory or broker-dealer business, which would need to be disclosed pursuant to Rule 206(4)-4(b) under the Advisers Act, or which is reasonably likely to give rise to an affirmative answer to any of the questions in Item 11, Part 1 of the Form ADV of such registered investment adviser or which is reasonably likely to give rise to an affirmative answer to any of the questions in Item 7 of the Form BD of such broker-dealer.

(z)                                   Registration of Funds.   Each mutual fund of which a subsidiary of the Company serves as the investment advisor (a “ Mutual Fund ”) has been since inception, is currently and will be immediately after consummation of the transactions contemplated herein, a duly registered investment company in compliance with the Investment Company Act, and the rules and regulations promulgated thereunder and duly registered or licensed, except where any failure to be duly registered, individually or in the aggregate, would not reasonably be expected to result in a Material Adverse Effect.  Since their initial offering, shares of each of the Mutual Funds have been duly qualified for sale under the securities laws of each jurisdiction in which they have been sold or offered for sale at such time or times during which such qualification was required, and, if not so qualified, the failure to so qualify would not reasonably be expected to have a Material Adverse Effect.  The offering and sale of shares of each of the Mutual Funds have been registered under the Securities Act during such period or periods for which such registration is required; the related registration statement has become effective under the Securities Act; no stop order suspending the effectiveness of any such registration statement has been issued and no proceedings for that purpose have been instituted or, to the knowledge of the Company, are contemplated.  Except to the extent that such failure to comply, misstatement or omission, as the case may be, would not result in a Material Adverse Effect, the registration statement of each Mutual Fund, together with the amendments and supplements

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thereto, under the Investment Company Act and the Securities Act has, at all times when such registration statement was effective, complied in all material respects with the requirements of the Investment Company Act and the Securities Act then in effect and neither such registration statement nor any amendments or supplements thereto contained, at the time and in light of the circumstances in which they were made, an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein, at the time and in the light of the circumstances under which they were made, not misleading.  All shares of each of the Mutual Funds were sold pursuant to an effective registration statement, or pursuant to a valid exemption from registration, and have been duly authorized and are validly issued, fully paid and non-assessable.  Each of the Mutual Funds’ investments has been made in accordance with its investment policies and restrictions set forth in its registration statement in effect at the time the investments were made and have been held in accordance with its respective investment policies and restrictions, to the extent applicable and in effect at the time such investments were held, except to the extent any failure to comply with such policies and restrictions, individually or in the aggregate, would not reasonably be expected to result in a Material Adverse Effect.

(aa)                           Investment Advisory Agreements .  The Company is not party to any investment advisory agreement or distribution agreement and is not serving or acting as an investment adviser to any person.  Each of the investment advisory agreements to which any of its subsidiaries is a party is a legal and valid obligation of such subsidiary and complies with the applicable requirements of the Advisers Act and the rules and regulations of the Commission thereunder, except where the failure to so comply would not, individually or in the aggregate, be expected to have a Material Adverse Effect.  Each of the investment advisory agreements and distribution agreements between a subsidiary of the Company and a Mutual Fund is a legal and valid obligation of such subsidiary and complies with the applicable requirements of the Investment Company Act, and in the case of such distribution agreements, with the applicable requirements of the Exchange Act, except where the failure to so comply would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.  No investment advisory agreement or distribution agreement to which any of the subsidiaries is a party that was either in effect on January 1, 2011 or entered into by a subsidiary of the Company since January 1, 2011 has been terminated or expired, except where any such termination or expiration would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.  None of such subsidiaries is in breach or violation of or in default under any such investment advisory agreement or distribution agreement, with such exceptions individually or in the aggregate as would not reasonably be expected to have a Material Adverse Effect.  No subsidiary of the Company is serving or acting as an investment adviser to any person except pursuant to an agreement to which such subsidiary is a party and which is in full force and effect, other than any agreement the non-existence of which would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.  The consummation of the transaction contemplated herein will not constitute an “assignment” as such term is defined in the Advisers Act and the Exchange Act.

(bb)                           Internal Control over Financial Reporting .  The Company maintains a system of internal control over financial reporting (as such term is defined in Rule 13a -15(f) under the Exchange Act) that complies with the requirements of the Exchange Act and has been designed by the Company’s principal executive officer and principal financial officer, or under their supervision, to provide reasonable assurance regarding the reliability of financial reporting, the preparation of financial statements for external purposes in accordance with generally accepted accounting principles and the interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Registration Statement.  The Company’s internal control over financial reporting is effective and the Company is not aware of any material weaknesses in its internal control over financial reporting.  Since the date of the latest audited financial statements included or incorporated by reference in the Registration Statement, the Time of Sale Information and the Prospectus, there has been no change in the Company’s internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

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(cc)                             eXtensible Business Reporting Language . The interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Registration Statement fairly presents the information called for in all material respects and has been prepared in accordance with the Commission’s rules and guidelines applicable thereto.

(dd)                           Disclosure Controls and Procedures .  The Company maintains disclosure controls and procedures (as such term is defined in Rule 13a-15(e) under the Exchange Act) that comply with the requirements of the Exchange Act; such disclosure controls and procedures have been designed to ensure that material information relating to the Company and its subsidiaries is made known to the Company’s principal executive officer and principal financial officer by others within those entities; and such disclosure controls and procedures are effective.

(ee)                             No Price Stabilization or Manipulation.  The Company has not taken, and will not take, directly or indirectly, any action designed to or that might be reasonably expected to cause or result in stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Securities.

(ff)                               Brokers.   There is no broker, finder or other party that is entitled to receive from the Company any brokerage or finder’s fee or other fee or commission as a result of any transactions contemplated by this Agreement.

(gg)                             No Unlawful Payments .  Neither the Company nor any of its subsidiaries nor, to the knowledge of the Company, any director, officer, agent, employee or other person associated with or acting on behalf of the Company or any of its subsidiaries has (i) used any corporate funds of the Company or any of its subsidiaries for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (ii) made any direct or indirect unlawful payment to any foreign or domestic government official or employee from corporate funds of the Company or any of its subsidiaries; (iii) violated or is in violation of any provision of the Foreign Corrupt Practices Act of 1977 relating to activities of the Company or any of its subsidiaries; or (iv) made any bribe, rebate, payoff, influence payment, kickback or other unlawful payment on behalf of the Company or any of its subsidiaries.

(hh)                           Compliance with Money Laundering Laws .  The operations of the Company and its subsidiaries are and have been conducted at all times in compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the money laundering statutes of all jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any governmental agency (collectively, the “Money Laundering Laws”) and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or any of its subsidiaries with respect to the Money Laundering Laws is pending or, to the knowledge of the Company, threatened.

(ii)                                   Compliance with OFAC .  None of the Company, any of its subsidiaries or, to the knowledge of the Company, any director, officer, agent, employee or Affiliate of the Company or any of its subsidiaries is currently subject to any U.S. sanctions administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”); and the Company will not directly or indirectly use the proceeds of the offering of the Securities hereunder, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity, for the purpose of financing the activities of any person currently subject to any U.S. sanctions administered by OFAC.

Any certificate signed by an officer of the Company and delivered to the Underwriters or to counsel for the Underwriters shall be deemed to be a representation and warranty by the Company to the Underwriters as to the matters set forth therein.

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Section 4.  Covenants of the Company .  The Company covenants and agrees with each Underwriter that:

(a)                                  Required Filings.   The Company will file the Prospectus with the Commission within the time periods specified by Rule 424(b) and Rule 430A, 430B or 430C under the Securities Act, will file any Issuer Free Writing Prospectus (including the Term Sheet substantially in the form of Annex C hereto) to the extent required by Rule 433 under the Securities Act; and will file promptly all reports and any definitive proxy or information statements required to be filed by the Company with the Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act subsequent to the date of the Prospectus and for so long as the delivery of a prospectus is required in connection with the offering or sale of the Securities; and the Company will furnish copies of the Prospectus and each Issuer Free Writing Prospectus (to the extent not previously delivered) to the Underwriters in New York City prior to 10:00 A.M., New York City time, on the business day next succeeding the date of this Agreement in such quantities as the Representatives may reasonably request.  The Company will pay the registration fees for this offering within the time period required by Rule 456(b)(1)(i) under the Securities Act (without giving effect to the proviso therein) and in any event prior to the Time of Delivery.

(b)                                  Delivery of Copies.   The Company will deliver, without charge, (i) to the Representatives, two signed copies of the Registration Statement as originally filed and each amendment thereto, in each case including all exhibits and consents filed therewith; and (ii) to each Underwriter (A) a conformed copy of the Registration Statement as originally filed and each amendment thereto, in each case including all exhibits and consents filed therewith and (B) during the Prospectus Delivery Period (as defined below), as many copies of the Prospectus (including all amendments and supplements thereto) and each Issuer Free Writing Prospectus, in each case, as the Representatives may reasonably request.  As used herein, the term “ Prospectus Delivery Period ” means such period of time after the first date of the public offering of the Securities as in the opinion of counsel for the Underwriters a prospectus relating to the Securities is required by law to be delivered (or required to be delivered but for Rule 172 under the Securities Act) in connection with sales of the Securities by any Underwriter or dealer.

(c)                                   Amendments or Supplements; Issuer Free Writing Prospectuses.   Before making, preparing, using, authorizing, approving, referring to or filing any Issuer Free Writing Prospectus, and before filing any amendment or supplement to the Registration Statement or the Prospectus (except for documents that are incorporated by reference therein), the Company will furnish to the Representatives and counsel for the Underwriters a copy of the proposed Issuer Free Writing Prospectus, amendment or supplement for review and will not make, prepare, use, authorize, approve, refer to or file any such Issuer Free Writing Prospectus or file any such proposed amendment or supplement to which the Representatives reasonably and promptly objects.

(d)                                  Notice to the Representatives.   The Company will advise the Representatives promptly, and confirm such advice in writing, (i) when any amendment to the Registration Statement has been filed or becomes effective; (ii) when any supplement to the Prospectus or any amendment to the Prospectus or any Issuer Free Writing Prospectus has been filed; (iii) of any request by the Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus or the receipt of any comments from the Commission relating to the Registration Statement or any other request by the Commission for any additional information; (iv) of the issuance by the Commission of any order suspending the effectiveness of the Registration Statement or preventing or suspending the use of any Preliminary Prospectus or the Prospectus or the initiation or threatening of any proceeding for that purpose or pursuant to Section 8A of the Securities Act; (v) of the occurrence of any event within the Prospectus Delivery Period as a result of which the Prospectus, the Time of Sale Information or any Issuer Free Writing Prospectus as then amended or supplemented would include any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in

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the light of the circumstances existing when the Prospectus, the Time of Sale Information or any such Issuer Free Writing Prospectus is delivered to a purchaser, not misleading; (vi) of the receipt by the Company of any notice of objection of the Commission to the use of the Registration Statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act; and (vii) of the receipt by the Company of any notice with respect to any suspension of the qualification of the Securities for offer and sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose; and the Company will use its reasonable best efforts to prevent the issuance of any such order suspending the effectiveness of the Registration Statement, preventing or suspending the use of any Preliminary Prospectus or the Prospectus or suspending any such qualification of the Securities and, if any such order is issued, will obtain as soon as possible the withdrawal thereof.

(e)                                   Time of Sale Information.   If at any time prior to the Time of Delivery (i) any event shall occur or condition shall exist as a result of which the Time of Sale Information as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances, not misleading or (ii) it is necessary to amend or supplement the Time of Sale Information to comply with law, the Company will immediately notify the Underwriters thereof and forthwith prepare and, subject to paragraph (c) above, file with the Commission (to the extent required) and furnish to the Underwriters and to such dealers as the Representatives may designate, such amendments or supplements to the Time of Sale Information as may be necessary so that the statements in the Time of Sale Information as so amended or supplemented will not, in the light of the circumstances, be misleading or so that the Time of Sale Information will comply with law.

(f)                                    Ongoing Compliance .  If during the Prospectus Delivery Period (i) any event shall occur or condition shall exist as a result of which the Prospectus as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances existing when the Prospectus is delivered to a purchaser, not misleading or (ii) it is necessary to amend or supplement the Prospectus to comply with law, the Company will immediately notify the Underwriters thereof and forthwith prepare and, subject to paragraph (c) above, file with the Commission and furnish to the Underwriters and to such dealers as the Representatives may designate, such amendments or supplements to the Prospectus as may be necessary so that the statements in the Prospectus as so amended or supplemented will not, in the light of the circumstances existing when the Prospectus is delivered to a purchaser, be misleading or so that the Prospectus will comply with law.

(g)                                   Blue Sky Compliance.   The Company will qualify the Securities for offer and sale under the securities or Blue Sky laws of such jurisdictions as the Representatives shall reasonably request and will continue such qualifications in effect so long as required for distribution of the Securities; provided that the Company shall not be required to (i) qualify as a foreign corporation or other entity or as a dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify, (ii) file any general consent to service of process in any such jurisdiction or (iii) subject itself to taxation in any such jurisdiction if it is not otherwise so subject.

(h)                                  Compliance with Securities Law .  During the Prospectus Delivery Period, the Company will comply with all applicable securities and other laws, rules and regulations, including, without limitation, the Sarbanes-Oxley Act, and use its best efforts to cause the Company’s directors and officers, in their capacities as such, to comply with such laws, rules and regulations, including, without limitation, the provisions of the Sarbanes-Oxley Act.

(i)                                      Earnings Statement .  The Company will make generally available to its security holders and the Representatives as soon as practicable an earnings statement that satisfies the provisions of Section

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11(a) of the Securities Act and Rule 158 of the Commission promulgated thereunder covering a period of at least twelve months beginning with the first fiscal quarter of the Company occurring after the “effective date” (as defined in Rule 158) of the Registration Statement, provided that information filed with the Commission via EDGAR shall satisfy this requirement.

(j)                                     Clear Market.   During the period from the date hereof through and including the Time of Delivery, the Company will not, without the prior written consent of the Representatives, offer, sell, contract to sell or otherwise dispose of any debt securities issued or guaranteed by the Company and having a tenor of more than one year.

(k)                                  Use of Proceeds.   The Company will apply the net proceeds from the sale of the Securities as described in the Registration Statement, the Time of Sale Information and the Prospectus under the heading “Use of Proceeds”.

(l)                                      Investment Limitation .  The Company shall not invest or otherwise use the proceeds received by the Company from its sale of the Securities in such a manner as would require the Company or any of its subsidiaries to register as an investment company under the Investment Company Act.

(m)                              No Price Stabilization or Manipulation.   The Company will not take, directly or indirectly, any action designed to cause or result in, or that has constituted or might reasonably be expected to constitute, under the Exchange Act or otherwise, the stabilization or manipulation of the price of any securities of the Company to facilitate the sale or resale of the Securities.

(n)                                  Record Retention .  The Company will, pursuant to reasonable procedures developed in good faith, retain copies of each Issuer Free Writing Prospectus that is not filed with the Commission in accordance with Rule 433 under the Securities Act.

(o)                                  DTC .  The Company will cooperate with the Representatives and use its best efforts to permit the Securities to be eligible for clearance and settlement through DTC.

Section 5.  Certain Agreements of the Underwriters .  Each Underwriter hereby represents and agrees that:

(a)                                  It has not used and will not use, authorize use of, refer to, or participate in the planning for use of, any “free writing prospectus”, as defined in Rule 405 under the Securities Act (which term includes use of any written information furnished to the Commission by the Company and not incorporated by reference into the Registration Statement and any press release issued by the Company) other than (i) a free writing prospectus that, solely as a result of use by such Underwriter, would not trigger an obligation to file such free writing prospectus with the Commission pursuant to Rule 433, (ii) any Issuer Free Writing Prospectus listed on Annex B or prepared pursuant to Section 3(c) or Section 4(c) above (including any electronic road show), or (iii) any free writing prospectus prepared by such Underwriter and approved by the Company in advance in writing (each such free writing prospectus referred to in clauses (i) or (iii), an “Underwriter Free Writing Prospectus”).  Notwithstanding the foregoing, the Underwriters may use a term sheet substantially in the form of Annex C hereto without the consent of the Company.

(b)                                  It is not subject to any pending proceeding under Section 8A of the Securities Act with respect to the offering (and will promptly notify the Company if any such proceeding against it is initiated during the Prospectus Delivery Period).

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Section 6.  Conditions of Underwriters’ Obligations.   The obligation of each Underwriter to purchase Securities at the Time of Delivery as provided herein is subject to the performance by the Company of its covenants and other obligations hereunder and to the following additional conditions:

(a)                                  Registration Compliance; No Stop Order.   No order suspending the effectiveness of the Registration Statement shall be in effect, and no proceeding for such purpose, pursuant to Rule 401(g)(2) or pursuant to Section 8A under the Securities Act shall be pending before or threatened by the Commission; the Prospectus and each Issuer Free Writing Prospectus shall have been timely filed with the Commission under the Securities Act (in the case of a Issuer Free Writing Prospectus, to the extent required by Rule 433 under the Securities Act) and in accordance with Section 4(a) hereof; and all requests by the Commission for additional information shall have been complied with to the reasonable satisfaction of the Representatives.

(b)                                  Accountants’ Comfort Letter.   On the date of this Agreement and at the Time of Delivery, the Representatives shall have received from PricewaterhouseCoopers LLP, independent public accountants for the Company, a letter dated the date of this Agreement or the Time of Delivery, addressed to the Representatives, in form and substance reasonably satisfactory to the Representatives and PricewaterhouseCoopers LLP.

(c)                                   No Material Adverse Effect or Ratings Agency Change .  For the period from and after the date of this Agreement and prior to the Time of Delivery:

(i)                                      in the judgment of the Representatives there shall not have occurred any Material Adverse Effect;

(ii)                                   there shall not have been any change or decrease specified in the letter or letters referred to in paragraph (b) of this Section 6 which is, in the sole judgment of the Representatives, so material and adverse as to make it impractical or inadvisable to proceed with the offering or delivery of the Securities as contemplated by the Registration Statement, the Time of Sale Information and the Prospectus; and

(iii)                                there shall not have occurred any downgrading, nor shall any notice have been given of any intended or potential downgrading or of any review for a possible change that does not indicate the direction of the possible change, in the rating accorded any securities of the Company or any of its subsidiaries by any “nationally recognized statistical rating organization” as such term is defined in Section 3(a)(62) of the Exchange Act.

(d)                                  Opinion of Counsel for the Company . At the Time of Delivery, the Representatives shall have received the favorable opinion of Ropes & Gray LLP, counsel for the Company, dated as of the Time of Delivery, in form and substance reasonably satisfactory to the Representatives.

(e)                                   Opinion of Counsel for the Underwriters .  At the Time of Delivery, the Representatives shall have received the favorable opinion of Cleary Gottlieb Steen & Hamilton LLP, counsel for the Underwriters, dated as of the Time of Delivery, in form and substance reasonably satisfactory to the Representatives; and the Company shall have furnished to such counsel such documents as they request for the purpose of enabling them to pass upon such matters.

(f)                                    Officers’ Certificate .  At the Time of Delivery, the Representatives shall have received a written certificate executed by any two of an Executive or Senior Vice President, the General Counsel and Secretary, Chief Administrative Officer and the Chief Financial Officer and Treasurer, dated as of the Time of Delivery, to the effect that the signers of such certificate have carefully examined the Registration

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Statement, the Time of Sale Information, the Prospectus, any amendments or supplements thereto and this Agreement, to the effect set forth in subsection (c)(iii) of this Section 6, and further to the effect that:

(i)                                      for the period from and after the date of this Agreement and prior to the Time of Delivery, there has not occurred any Material Adverse Effect;

(ii)                                   the representations and warranties of the Company set forth in Section 3 of this Agreement are true and correct on and as of the Time of Delivery, with the same force and effect as though expressly made on and as of the Time of Delivery; and

(iii)                                the Company has complied with all the agreements hereunder and satisfied all the conditions on its part to be performed or satisfied hereunder at or prior to such Time of Delivery.

(g)                                   Certificate of Chief Financial Officer . On the date of this Agreement, the Representatives shall have received a written certificate of the Chief Financial Officer of the Company substantially in the form of Annex A hereto.

(h)                                  Additional Documents .  On or before the Time of Delivery, the Representatives and counsel for the Representatives shall have received such information, documents and opinions as they may reasonably require for the purposes of enabling them to pass upon the issuance and sale of the Securities as contemplated herein, or in order to evidence the accuracy of any of the representations and warranties, or the satisfaction of any of the conditions or agreements, herein contained.

Section 7.  Indemnification and Contribution .

(a)                                  Indemnification of the Underwriters.   The Company agrees to indemnify and hold harmless each Underwriter, its affiliates, directors, officers and selling agents and each person, if any, who controls such Underwriter within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any and all losses, claims, damages and liabilities (including, without limitation, reasonable legal fees and other reasonable expenses incurred in connection with any suit, action or proceeding or any claim asserted, as such fees and expenses are incurred), joint or several, that arise out of, or are based upon, (i) any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement or caused by any omission or alleged omission to state therein a material fact required to be stated therein or necessary in order to make the statements therein, not misleading, (ii) or any untrue statement or alleged untrue statement of a material fact contained in the Prospectus (or any amendment or supplement thereto), any Issuer Free Writing Prospectus or any Time of Sale Information, or caused by any omission or alleged omission to state therein a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading, in each case except insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use therein.

(b)                                  Indemnification of the Company.   Each Underwriter agrees, severally and not jointly, to indemnify and hold harmless the Company, its directors, its officers who signed the Registration Statement and each person, if any, who controls the Company within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in paragraph (a) above, but only with respect to any losses, claims, damages or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to such Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in the Registration Statement, the Prospectus (or

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any amendment or supplement thereto), any Issuer Free Writing Prospectus or any Time of Sale Information.

(c)           Notice and Procedures.   If any suit, action, proceeding (including any governmental or regulatory investigation), claim or demand shall be brought or asserted against any person in respect of which indemnification may be sought pursuant to either paragraph (a) or (b) above, such person (the “ Indemnified Person ”) shall promptly notify the person against whom such indemnification may be sought (the “ Indemnifying Person ”) in writing; provided that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have under this Section 7 except to the extent that it has been materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided , further , that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have to an Indemnified Person otherwise than under this Section 7.  If any such proceeding shall be brought or asserted against an Indemnified Person and it shall have notified the Indemnifying Person thereof, the Indemnifying Person shall retain counsel reasonably satisfactory to the Indemnified Person (who shall not, without the consent of the Indemnified Person, be counsel to the Indemnifying Person) to represent the Indemnified Person and any others entitled to indemnification pursuant to this Section 7 that the Indemnifying Party may designate in such proceeding and shall pay the fees and expenses of such proceeding and shall pay the reasonable fees and expenses of counsel related to such proceeding, as incurred.  In any such proceeding, any Indemnified Person shall have the right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such Indemnified Person unless (i) the Indemnifying Person and the Indemnified Person shall have mutually agreed to the contrary; (ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified Person; (iii) the Indemnified Person shall have reasonably concluded that there may be legal defenses available to it that are different from or in addition to those available to the Indemnifying Person; or (iv) the named parties in any such proceeding (including any impleaded parties) include both the Indemnifying Person and the Indemnified Person and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them.  It is understood and agreed that the Indemnifying Person shall not, in connection with any proceeding or related proceeding in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any local counsel) for all Indemnified Persons, and that all such reasonable fees and expenses shall be reimbursed as they are incurred.  Any such separate firm for any Underwriter, its affiliates, directors and officers and any control persons of such Underwriter shall be designated in writing by the Representatives and any such separate firm for the Company, its directors, its officers who signed the Registration Statement and any control persons of the Company shall be designated in writing by the Company.  The Indemnifying Person shall not be liable for any settlement of any proceeding effected without its written consent, but if settled with such consent or if there be a final, non-appealable judgment for the plaintiff, the Indemnifying Person agrees to indemnify each Indemnified Person from and against any loss or liability by reason of such settlement or judgment.  Notwithstanding the foregoing sentence, if at any time an Indemnified Person shall have requested that an Indemnifying Person reimburse the Indemnified Person for reasonable fees and expenses of counsel as contemplated by this paragraph, the Indemnifying Person shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than 30 days after receipt by the Indemnifying Person of such request and (ii) the Indemnifying Person shall not have reimbursed the Indemnified Person in accordance with such request prior to the date of such settlement.  No Indemnifying Person shall, without the written consent of the Indemnified Person, effect any settlement of any pending or threatened proceeding in respect of which any Indemnified Person is or could have been a party and indemnification could have been sought hereunder by such Indemnified Person, unless such settlement (x) includes an unconditional release of such Indemnified Person, in form and substance reasonably satisfactory to such Indemnified Person, from all liability on claims that are the subject matter of such proceeding and (y) does not include any statement as to or any admission of fault, culpability or a failure to act by or on behalf of any Indemnified Person.

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(d)           Contribution.   If the indemnification provided for in paragraphs (a) and (b) above is unavailable to an Indemnified Person or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each Indemnifying Person under such paragraph, in lieu of indemnifying such Indemnified Person thereunder, shall contribute to the amount paid or payable by such Indemnified Person as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and the Underwriters on the other from the offering of the Securities or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) but also the relative fault of the Company on the one hand and the Underwriters on the other in connection with the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations.  The relative benefits received by the Company on the one hand and the Underwriters on the other shall be deemed to be in the same respective proportions as the net proceeds (before deducting expenses) received by the Company from the sale of the Securities and the total underwriting discounts and commissions received by the Underwriters in connection therewith, in each case as set forth in the table on the cover of the Prospectus, bear to the aggregate offering price of the Securities.  The relative fault of the Company on the one hand and the Underwriters on the other shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company or by the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

(e)           Limitation on Liability.   The Company and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 7 were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations referred to in paragraph (d) above.  The amount paid or payable by an Indemnified Person as a result of the losses, claims, damages and liabilities referred to in paragraph (d) above shall be deemed to include, subject to the limitations set forth above, any reasonable legal or other expenses incurred by such Indemnified Person in connection with any such action or claim.  Notwithstanding the provisions of this Section 7, in no event shall an Underwriter be required to contribute any amount in excess of the amount by which the total underwriting discounts and commissions received by such Underwriter with respect to the offering of the Securities exceeds the amount of any damages that such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission.  No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation.  The Underwriters’ obligations to contribute pursuant to this Section 7 are several in proportion to their respective purchase obligations hereunder and not joint.

(f)            Non-Exclusive Remedies.   The remedies provided for in this Section 7 are not exclusive and shall not limit any rights or remedies which may otherwise be available to any Indemnified Person at law or in equity.

Section 8.  Effectiveness of Agreement .  This Agreement shall become effective upon the execution and delivery hereof by the parties hereto.

Section 9.  Termination .  Prior to the Time of Delivery, this Agreement may be terminated by the Underwriters by notice given to the Company if at any time (i) trading or quotation in any of the Company’s securities shall have been suspended or limited by the Commission or by the New York Stock Exchange, (ii) trading in securities generally on the New York Stock Exchange shall have been suspended or limited, or minimum or maximum prices shall have been generally established by the Commission or FINRA or on either such stock exchange; (iii) a general banking moratorium shall have been declared by federal or New York authorities or a material disruption in commercial banking or securities settlement or clearance

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services in the United States has occurred; or (iv) there shall have occurred any outbreak or escalation of national or international hostilities or declaration of a national emergency or war by the United States or any crisis or calamity, or any change in the United States or international financial markets, or any substantial change or development involving a prospective substantial change in United States’ or international political, financial or economic conditions, as in the judgment of the Underwriters is material and adverse and makes it impracticable or inadvisable to market the Securities in the manner and on the terms described in the Registration Statement, the Time of Sale Information and the Prospectus or to enforce contracts for the sale of securities.  Any termination pursuant to this Section 9 shall be without liability on the part of (a) the Company to the Underwriters, except that the Company shall be obligated to reimburse the expenses of the Underwriters as provided in  Section 11(b) hereof or (b) the Underwriters to the Company.

Section 10.  Defaulting Underwriter .  (a) If, at the Time of Delivery, any Underwriter defaults on its obligation to purchase the Securities that it has agreed to purchase hereunder, the non-defaulting Underwriters may in their discretion arrange for the purchase of such Securities by other persons satisfactory to the Company on the terms contained in this Agreement.  If, within 36 hours after any such default by any Underwriter, the non-defaulting Underwriters do not arrange for the purchase of such Securities, then the Company shall be entitled to a further period of 36 hours within which to procure other persons satisfactory to the non-defaulting Underwriters to purchase such Securities on such terms.  If other persons become obligated or agree to purchase the Securities of a defaulting Underwriter, either the non-defaulting Underwriters or the Company may postpone the Time of Delivery for up to five full business days in order to effect any changes that in the opinion of counsel for the Company or counsel for the Underwriters may be necessary in the Registration Statement, the Time of Sale Information and the Prospectus or in any other document or arrangement, and the Company agrees to promptly prepare any amendment or supplement to the Registration Statement, the Time of Sale Information and the Prospectus that effects any such changes.  As used in this Agreement, the term “Underwriters” includes, for all purposes of this Agreement unless the context otherwise requires, any person not listed in Schedule I hereto that, pursuant to this Section 10, purchases Securities that a defaulting Underwriter agreed but failed to purchase.

(b)           If, after giving effect to any arrangements for the purchase of the Securities of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters and the Company as provided in paragraph (a) above, the aggregate principal amount of such Securities that remains unpurchased does not exceed one-eleventh of the aggregate principal amount of all the Securities, then the Company shall have the right to require each non-defaulting Underwriter to purchase the principal amount of Securities that such Underwriter agreed to purchase hereunder plus such Underwriter’s pro rata share (based on the principal amount of Securities that such Underwriter agreed to purchase hereunder) of the Securities of such defaulting Underwriter or Underwriters for which such arrangements have not been made.

(c)           If, after giving effect to any arrangements for the purchase of the Securities of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters and the Company as provided in paragraph (a) above, the aggregate principal amount of such Securities that remains unpurchased exceeds one-eleventh of the aggregate principal amount of all the Securities, or if the Company shall not exercise the right described in paragraph (b) above, then this Agreement with respect to the Securities shall terminate without liability on the part of the non-defaulting Underwriters.  Any termination of this Agreement pursuant to this Section 10 shall be without liability on the part of the Company, except that the Company will continue to be liable for the payment of expenses as set forth in Section 11 hereof and except that the provisions of Section 7 hereof shall not terminate and shall remain in effect.

(d)           Nothing contained herein shall relieve a defaulting Underwriter of any liability it may have to the Company or any non-defaulting Underwriter for damages caused by its default.

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Section 11.  Payment of Expenses .   (a) Whether or not the transactions contemplated by this Agreement are consummated or this Agreement is terminated, the Company will pay or cause to be paid all costs and expenses incident to the performance of its obligations hereunder, including without limitation, (i) the costs incident to the authorization, issuance, sale, preparation and delivery of the Securities and any taxes payable in that connection; (ii) the costs incident to the preparation, printing and filing under the Securities Act of the Registration Statement, the Preliminary Prospectus, any Issuer Free Writing Prospectus, any Time of Sale Information and the Prospectus (including all exhibits, amendments and supplements thereto) and the distribution thereof; (iii) the costs of reproducing and distributing each of the Transaction Documents; (iv) the fees and expenses of the Company’s counsel and independent accountants; (v) the fees and expenses incurred in connection with the registration or qualification and determination of eligibility for investment of the Securities under the laws of such jurisdictions as the Representatives may designate and the preparation, printing and distribution of a Blue Sky Memorandum (including the related fees and expenses of counsel for the Underwriters); (vi) any fees charged by rating agencies for rating the Securities; (vii) the fees and expenses of the Trustee and any paying agent (including related fees and expenses of any counsel to such parties); (viii) all expenses and application fees incurred in connection with any filing with, and clearance of the offering by, the Financial Industry Regulatory Authority; and (ix) all expenses incurred by the Company in connection with any “road show” presentation to potential investors.

(b)           If (i) this Agreement is terminated pursuant to Section 9(i), (ii) the Company for any reason not permitted by this Agreement fails to tender the Securities for delivery to the Underwriters or (iii) the Underwriters decline to purchase the Securities for any reason permitted under this Agreement, the Company agrees to reimburse the Underwriters for all out-of-pocket costs and expenses (including the fees and expenses of their counsel) reasonably incurred by the Underwriters in connection with this Agreement and the offering contemplated hereby.

Section 12.  Persons Entitled to Benefit of Agreement .  This Agreement shall inure to the benefit of and be binding upon the parties hereto and their respective successors and the officers and directors and any controlling persons referred to herein, and the affiliates of each Underwriter referred to in Section 7 hereof.  Nothing in this Agreement is intended or shall be construed to give any other person any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision contained herein.  No purchaser of Securities from any Underwriter shall be deemed to be a successor merely by reason of such purchase.

Section 13.  Survival .  The respective indemnities, rights of contribution, representations, warranties and agreements of the Company and the Underwriters contained in this Agreement or made by or on behalf of the Company or the Underwriters pursuant to this Agreement or any certificate delivered pursuant hereto shall survive the delivery of and payment for the Securities and shall remain in full force and effect, regardless of any termination of this Agreement or any investigation made by or on behalf of the Company or the Underwriters.

Section 14.  Certain Defined Terms .  For purposes of this Agreement, (a) except where otherwise expressly provided, the term “ affiliate ” has the meaning set forth in Rule 405 under the Securities Act; (b) the term “ business day ” means any day other than a day on which banks are permitted or required to be closed in New York City; and (c) the term “ subsidiary ” has the meaning set forth in Rule 405 under the Securities Act.

Section 15.  Miscellaneous .  (a)  Authority of the Representatives.   Any action by the Underwriters hereunder may be taken by Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc. and J.P. Morgan Securities LLC on behalf of the Underwriters, and any such action taken by Merrill Lynch, Pierce, Fenner & Smith Incorporated, Citigroup Global Markets Inc. and J.P. Morgan Securities LLC shall be binding upon the Underwriters.

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(b)           Notices.   All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted and confirmed by any standard form of telecommunication.  Notices to the Underwriters shall be given to the Representatives c/o (a) Merrill Lynch, Pierce, Fenner & Smith Incorporated, 50 Rockefeller Plaza, NY1-050-12-02, New York, New York 10020, Attention: High Grade Transaction Management/Legal, fax: (646) 855-5958, (b) Citigroup Global Markets Inc., 388 Greenwich Street, New York, New York 10013, Attention: General Counsel, fax: +1 (646) 291-1469; and (c) J.P. Morgan Securities LLC, 383 Madison Avenue, New York, New York 10179, Attention: Investment Grade Syndicate Desk, telephone: (212) 834-4533, fax: (212) 834-6081.  Notices to the Company shall be given to it at 600 Hale Street, P.O. Box 1000, Prides Crossing, MA 01965, (fax: (617) 747-3380); Attention: Chief Financial Officer.

(c)           Waiver of Jury Trial . The parties hereby irrevocably waive, 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, this Agreement or the transactions contemplated hereby.

(d)           Governing Law.   This Agreement shall be governed by and construed in accordance with the laws of the State of New York.

(e)           Counterparts.   This Agreement may be signed in counterparts (which may include counterparts delivered by any standard form of telecommunication), each of which shall be an original and all of which together shall constitute one and the same instrument.

(f)            Amendments or Waivers.   No amendment or waiver of any provision of this Agreement, nor any consent or approval to any departure therefrom, shall in any event be effective unless the same shall be in writing and signed by the parties hereto.

(g)           Headings.   The headings herein are included for convenience of reference only and are not intended to be part of, or to affect the meaning or interpretation of, this Agreement.

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If the foregoing is in accordance with your understanding, please indicate your acceptance of this Agreement by signing in the space provided below.

[Signature Page to Underwriting Agreement]

Accepted:  February 10, 2015

On behalf of each of the Underwriters

ANNEX B

Time of Sale Information

Free Writing Prospectus dated February 10, 2015 filed with the SEC on February 10, 2015 pursuant to Rule 433(d) of the Securities Act.

ANNEX C

Affiliated Managers Group, Inc.

$350,000,000

3.500% Senior Notes due August 1, 2025

Term Sheet

February 10, 2015

The following information relates only to Affiliated Managers Group, Inc.’s offering (the “Offering”) of its 3.500% Senior Notes due August 1, 2025 and should be read together with the preliminary prospectus supplement dated February 10, 2015 relating to this Offering and the accompanying prospectus dated August 6, 2013, including the documents incorporated by reference therein.

* A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time

The issuer has filed a registration statement including a prospectus and a prospectus supplement with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus and prospectus supplement in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may obtain these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov . Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus and the prospectus supplement if you request them by calling Merrill Lynch, Pierce, Fenner & Smith Incorporated toll-free at 1-800-294-1322, Citigroup Global Markets Inc. toll-free at 1-800-831-9146 and J.P. Morgan Securities LLC collect at 212-834-4533 .

This pricing term sheet supplements and updates the information contained in the preliminary prospectus supplement issued by Affiliated Managers Group, Inc. on February 10, 2015 relating to its prospectus dated August 6, 2013.