X0306 4 2018-02-26 0 0000720002 MAINSOURCE FINANCIAL GROUP MSFG 0001519621 HARRISON CHRIS M 2105 NORTH STATED ROAD 3 BYPASS GREENSBURG IN 47240 0 1 0 0 EVP, Consumer Banking subsidiary, MainSource Bank Common Stock 2018-02-26 4 A 0 1833 0 A 10845 D Common Stock 2018-02-26 4 F 0 734 39.65 D 10111 D Common Stock 7243 I By 401-k Total reported includes 100 shares acquired under the Company 401-k plan since the reporting persons last ownership report on 02/06/2018. As authorized by Power of Attorney. /s/ Denise Manus, attorney-in-fact 2018-02-28