AMG's President and Chief Executive Officer to Present at the William Blair & Company 28th Annual Growth Stock Conference.

BOSTON -- Sean M. Healey, President and Chief Executive Officer of Affiliated Managers Group, Inc. (NYSE: AMG), is expected to speak today at the William Blair & Company 28th Annual Growth Stock Conference in Chicago at 3:00 p.m. Central time. Joined by Darrell W. Crate, AMG's Executive Vice President and Chief Financial Officer, Mr. Healey will highlight the Company's business model and investment strategy, as well as the growth record of AMG and its Affiliates.

AMG will provide a live audio transmission of the comments through its Web site at www.amg.com. A replay of the webcast will also be available through AMG's Web site shortly after the conclusion of management's remarks.

About Affiliated Managers Group

Affiliated Managers Group is a diversified asset management company with approximately $244 billion in assets at March 31, 2008. AMG's strategy is to generate growth through the internal growth of its existing Affiliates, as well as through investments in new Affiliates. Through AMG's innovative partnership approach, individual members of each Affiliate's management team retain or receive significant direct equity ownership in their firm while maintaining operating autonomy. AMG provides centralized assistance to its Affiliates in strategic matters, marketing, distribution, product development and operations. For more information, please visit the Company's Web site 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 "Cautionary Statements" set forth in the Company's Form 10-K for the year ended December 31, 2007.