X0303 4 2010-03-31 0001139812 MB FINANCIAL INC /MD MBFI 0001161660 MAY KAREN J C/O MB FINANCIAL, INC. 6111 NORTH RIVER ROAD ROSEMONT IL 60018 1 Common Stock 2010-03-31 4 A 0 565 22.53 A 9902 I By Deferred Comp Plan Stock Option (Right to Buy) 22.53 2010-03-31 4 A 0 508 0 A 2010-03-31 2015-03-31 Common Stock 508 508 D Stock Option (Right to Buy) 22.47 2008-06-30 2013-06-30 Common Stock 1383 1383 D Stock Option (Right to Buy) 33.07 2008-09-30 2013-09-30 Common Stock 762 762 D Stock Option (Right to Buy) 27.95 2008-12-31 2013-12-31 Common Stock 1287 1287 D Stock Option (Right to Buy) 13.60 2009-03-31 2014-03-31 Common Stock 1529 1529 D Stock Option (Right to Buy) 10.19 2009-06-30 2014-06-30 Common Stock 1189 1189 D Stock Option (Right to Buy) 20.97 2009-09-30 2014-09-30 Common Stock 806 806 D Stock Option (Right to Buy) 19.71 2009-12-31 2014-12-31 Common Stock 632 632 D Stock Option (Right to Buy) 39.97 2005-06-29 2010-06-29 Common Stock 569 569 D Stock Option (Right to Buy) 35.98 2005-10-24 2010-10-24 Common Stock 392 392 D Stock Option (Right to Buy) 36.49 2006-09-22 2011-09-22 Common Stock 1705 1705 D Stock Option (Right to Buy) 37.63 2006-12-28 2011-12-28 Common Stock 495 495 D Stock Option (Right to Buy) 36.01 2007-03-30 2012-03-30 Common Stock 601 601 D Stock Option (Right to Buy) 34.74 2007-06-29 2012-06-29 Common Stock 621 621 D Stock Option (Right to Buy) 35.17 2007-09-27 2012-09-27 Common Stock 412 412 D Stock Option (Right to Buy) 30.83 2007-12-31 2012-12-31 Common Stock 809 809 D Stock Option (Right to Buy) 30.78 2008-03-31 2013-03-31 Common Stock 979 979 D Grant to reporting person of option to purchase shares of common stock under Issuer's Amended and Restated Omnibus Incentive Plan. The option is 100% vested. Grant to reporting person of option to purchase shares of common stock under Issuer's 1997 Omnibus Incentive Plan. The option is 100% vested. /s/ Doria L. Koros, attorney-in-fact for Ms. May 2010-04-02