UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported) April 22, 2014

Affiliated Managers Group, Inc.

(Exact Name of Registrant as Specified in Its Charter)

Delaware

(State or Other Jurisdiction of Incorporation)

(617) 747-3300

(Registrant’s Telephone Number, Including Area Code)

N/A

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o            Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o            Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o            Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o            Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

ITEM 5.02                                  Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On April 22, 2014, the Board of Directors elected Niall Ferguson as a director of Affiliated Managers Group, Inc. (the “Company”).  Mr. Ferguson is Laurence A. Tisch Professor of History at Harvard University, and a Senior Fellow at the Hoover Institution, Stanford University.  He is a frequent commentator on contemporary and historical politics and economics and has published fourteen award-winning bestsellers, including most recently “Civilization: The West and the Rest” and “The Great Degeneration: How Institutions Decay and Economies Die”.  In 2009 his six-part television series “The Ascent of Money” won the International Emmy for Best Documentary.  In 2010 he won the Benjamin Franklin Award for Public Service, in 2012 the Hayek Prize for Lifetime Achievement and in 2013 the Ludwig Erhard Prize for Economic Journalism.  Mr. Ferguson is a member of the board of trustees of the American Academy in Berlin, the Museum of American Finance and the New York Historical Society.  He is also the founder of Greenmantle, a macroeconomic and geopolitical advisory firm.

Under the Company’s customary director equity arrangements, in connection with his election as a director, the Company granted Mr. Ferguson stock options to purchase 1,063 shares of Common Stock and $40,000 of stock units under the Company’s Deferred Compensation Plan.

A copy of the press release announcing Mr. Ferguson’s election is furnished as Exhibit 99.1 hereto.

ITEM 9.01                                  Financial Statements and Exhibits.

(d)                                 Exhibits.

*  This exhibit shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that section, nor shall it be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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EXHIBIT INDEX

*  This exhibit shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that section, nor shall it be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934.

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Exhibit 99.1

AMG Names Niall Ferguson to its Board of Directors

BOSTON, April 22, 2014 - Affiliated Managers Group, Inc. (NYSE: AMG) today announced the election of Niall Ferguson to its Board of Directors.

Mr. Ferguson is Laurence A. Tisch Professor of History at Harvard University, and a Senior Fellow at the Hoover Institution, Stanford University. He is a frequent commentator on contemporary and historical politics and economics and has published fourteen award-winning bestsellers, including most recently “Civilization:  The West and the Rest” and “The Great Degeneration:  How Institutions Decay and Economies Die.” In 2009 his six-part television series “The Ascent of Money” won the International Emmy for Best Documentary. In 2010 he won the Benjamin Franklin Award for Public Service, in 2012 the Hayek Prize for Lifetime Achievement and in 2013 the Ludwig Erhard Prize for Economic Journalism. Mr. Ferguson is a member of the board of trustees of the American Academy in Berlin, the Museum of American Finance and the New York Historical Society.  He is also the founder of Greenmantle, a macroeconomic and geopolitical advisory firm based in Cambridge, Mass.

“We are very pleased to welcome Niall Ferguson to our Board,” said Sean M. Healey, AMG’s Chairman and Chief Executive Officer. “Niall’s remarkable breadth of expertise and influence globally will make him an excellent addition to our Board.”

“I am honored to join AMG’s Board of Directors and work with the Company, which has achieved a remarkable record of growth and is one of the leading investment management firms globally,” said Mr. Ferguson.  “I look forward to working alongside the executive management team and Board on strategic objectives and investment opportunities that contribute to the Company’s success.”

About Affiliated Managers Group

AMG is a global asset management company with equity investments in leading boutique investment management firms.  AMG’s innovative partnership approach allows each Affiliate’s management team to own significant equity in their firm while maintaining operational autonomy.  AMG’s strategy is to generate growth through the internal growth of existing Affiliates, as well as

(more)

through investments in new Affiliates.  In addition, AMG provides centralized assistance to its Affiliates in strategic matters, marketing, distribution, product development and operations.  As of December 31, 2013, the aggregate assets under management of AMG’s Affiliates were approximately $568 billion, pro forma for a pending investment, in more than 400 investment products across a broad range of investment styles, asset classes and distribution channels.  For more information, please visit the Company’s website at www.amg.com.

Certain matters discussed in this press release may constitute forward-looking statements within the meaning of the federal securities laws. Actual results and the timing of certain events could differ materially from those projected in or contemplated by the forward-looking statements due to a number of factors, including changes in the securities or financial markets or in general economic conditions, the availability of equity and debt financing, competition for acquisitions of interests in investment management firms, the ability to close pending investments, the investment performance of our Affiliates and their ability to effectively market their investment strategies, and other risks detailed from time to time in AMG’s filings with the Securities and Exchange Commission. Reference is hereby made to the “Risk Factors” set forth in the Company’s Form 10-K for the year ended December 31, 2013.

AMG routinely posts information that may be significant for investors in the Investor Relations section of its website, and encourages investors to consult that section regularly. For additional information, please visit www.amg.com.

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