AMG to Announce Fourth Quarter and Full Year Results January 29, 2003; Teleconference Scheduled for 11:00 a.m. Eastern Time.

Business Editors

BOSTON--(BUSINESS WIRE)--Jan. 23, 2003

Affiliated Managers Group, Inc. (NYSE: AMG) will report financial and operating results for the fourth quarter and full year ending December 31, 2002 on Wednesday, January 29, 2003. A teleconference will be held at 11:00 a.m. Eastern Time on the same day.

In addition to quarterly and full year results, the teleconference may include discussion of management's expectations of future financial and operating results. Chairman and Chief Executive Officer, William J. Nutt, President and Chief Operating Officer, Sean M. Healey and Executive Vice President and Chief Financial Officer, Darrell W. Crate, will host the session.

Parties interested in listening to the teleconference should dial 1-800-218-9073 (domestic calls) or 1-303-262-2191 (international calls) starting at 10:45 a.m. Eastern Time. Those wishing to listen to the teleconference should dial the appropriate number at least ten minutes before the call begins.

The teleconference will also be available for replay beginning approximately one hour after the conclusion of the call. The recording will be accessible until 5:00 p.m. Eastern Time on Wednesday, February 5, 2003. To hear a replay of the call, please dial 1-800-405-2236 (domestic calls) or 1-303-590-3000 (international calls) and enter the pass code, 520717. The live call and the replay of the session can also be accessed via the Web at www.amg.com.

For more information on Affiliated Managers Group, Inc., please visit AMG's Web site at www.amg.com.