X0306 4 2017-09-29 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 2017-09-29 4 A 0 627 45.02 A 2971 D Common Stock 28507 I By Deferred Comp Plan Stock Option (Right to Buy) 28.21 2013-09-30 2018-09-30 Common Stock 2073 2073 D Stock Option (Right to Buy) 32.06 2013-12-31 2018-12-31 Common Stock 1326 1326 D Stock Option (Right to Buy) 24.17 2013-03-29 2018-03-29 Common Stock 1102 1102 D Stock Option (Right to Buy) 26.80 2013-06-28 2018-06-28 Common Stock 965 965 D Stock Option (Right to Buy) 30.96 2014-03-31 2019-03-31 Common Stock 1256 1256 D Stock Option (Right to Buy) 27.05 2014-06-30 2019-06-30 Common Stock 2031 2031 D Stock Option (Right to Buy) 27.68 2014-09-30 2019-09-30 Common Stock 1528 1528 D Stock Option (Right to Buy) 32.86 2014-12-31 2019-12-31 Common Stock 1007 1007 D Stock Option (Right to Buy) 31.31 2015-03-31 2020-03-31 Common Stock 910 910 D Stock Option (Right to Buy) 34.44 2015-06-30 2020-06-30 Common Stock 1263 1263 D Stock Option (Right to Buy) 32.64 2015-09-30 2020-09-30 Common Stock 1234 1234 D Stock Option (Right to Buy) 32.37 2015-12-31 2020-12-31 Common Stock 1372 1372 D Stock Option (Right to Buy) 32.45 2016-03-31 2021-03-31 Common Stock 1151 1151 D Stock Option (Right to Buy) 36.28 2016-06-30 2021-06-30 Common Stock 946 946 D Stock Option (Right to Buy) 38.04 2016-09-30 2021-09-30 Common Stock 1810 1810 D Stock Option (Right to Buy) 47.23 2016-12-30 2021-12-30 Common Stock 768 768 D Transaction represents the grant of restricted stock to the reporting person under the Issuer's Amended and Restated Omnibus Incentive Plan. The shares are scheduled to vest in full on September 30, 2018. Option to purchase shares of common stock granted to the reporting person under Issuer's Amended and Restated Omnibus Incentive Plan. The option is 100% vested. /s/ Doria L. Koros, attorney-in-fact for Ms. May 2017-10-03