X0306 4 2017-03-27 0 0000720002 MAINSOURCE FINANCIAL GROUP MSFG 0001214961 BROWN ARCHIE M JR 2105 N STATE RD 3 BYPASS GREENSBURG IN 47240 1 1 0 0 Chairman, President and CEO Common Stock 2017-03-27 4 M 0 5580 17.92 A 59047 D Common Stock 2017-03-27 4 M 0 7008 13.67 A 66055 D Common Stock 26113 I By 401-k Plan Employee Stock Option (Right to Buy) 17.92 2017-03-27 4 M 0 5580 0 A 2012-08-03 2018-08-03 Common Stock 5580 0 D Employee stock Option (Right to Buy) 13.67 2017-03-27 4 M 0 7008 0 A 2023-04-10 Common Stock 7008 0 D Includes 257 shares acquired under the Company's 401(k) plan since the date of the reporting persons last ownership report. The stock option vested as follows: 10% on December 31, 2013, 20% on December 31, 2014, 30% on December 31, 2015 and 40% on December 31, 2016. As authorized by power of attorney /s/ Denise Manus, attorney in fact 2017-03-28