MB Financial, Inc. Announces Schedule for Fourth Quarter 2009 Earnings Release and Conference Call

MB Financial, Inc., (Nasdaq: MBFI) today announced it will release its fourth quarter 2009 earnings on Friday, January 22, 2010 at 8:00 a.m. (Central Time). A conference call will be held the same day at 10:00 a.m. (Central Time). Individuals interested in listening should call 1.800.901.5247 and enter Passcode #57949824.

This call is being webcast and can be accessed via the Company’s web site at www.mbfinancial.com under Investor Relations.

Following the live webcast, an archived replay of the call will be available on the Company’s website beginning approximately three hours after the call ends. The replay will remain available through January 29, 2010.

MBFI is the holding company for MB Financial Bank, N.A. MB Financial Bank is a locally operated financial institution that has been delivering competitive personalized service for nearly 100 years to businesses and individuals who live and work in the Chicago metropolitan area.

This news release may contain forward-looking statements that involve risk and uncertainties, with respect to the results of operations and other uncertainties that may not be known or anticipated by the Company. While management of the Company uses its best efforts to be accurate in making forward-looking statements, any such statements are subject to risks and uncertainties that could cause the Company’s actual results to vary materially from the future results indicated in such forward-looking statements.