AMG’s President and Chief Executive Officer to Present at Lehman Brothers 2007 Financial Services Conference

Sean M. Healey, President and Chief Executive Officer of Affiliated Managers Group, Inc. (NYSE: AMG), is expected to speak at the Lehman Brothers 2007 Financial Services Conference in New York City on Monday, September 10, 2007 at 11:00 a.m. Eastern 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.

AMG is an asset management company with equity investments in a diverse group of boutique investment management firms. AMG’s strategy is to generate growth through the internal growth of its existing Affiliates, as well as through investments in new Affiliates. AMG’s innovative transaction structure allows individual members of each Affiliate’s management team to retain or receive significant direct equity ownership in their firm while maintaining operating autonomy. In addition, AMG provides centralized assistance to its Affiliates in strategic matters, marketing, distribution, product development and operations. AMG’s affiliated investment management firms managed $267 billion in assets at June 30, 2007.