X0303 4 2009-02-17 0 0000720002 MAINSOURCE FINANCIAL GROUP MSFG 0001256237 BARRON WILLIAM G 726 HARVARD DRIVE OWENSBORO KY 42301 1 0 0 0 Common Stock 2009-02-17 4 P 0 1000 7.20 A 54189 D Common Stock 2009-02-17 4 P 0 354 7.05 A 54189 D Common Stock 2009-02-17 4 P 0 241 7.05 A 4564 I FBO Son Common Stock 2009-02-17 4 P 0 156 7.05 A 10348 I FBO Daughter Common Stock 39907 I Spouse Common Stock 72493 I Trust A Common Stock 5163 I Trust B Common Stock 231578 I Family Trust Common Stock 133838 I Family Partnership Common Stock 303881 I By Irrevocable Trust The reporting person acquired 354 shares under the MainSource Dividend Reinvestment Plan. The reporting person acquired 241 shares under the MainSource Dividend Reinvestment Plan as custodian for the benefit of his son. The reporting person acquired 156 shares under the MainSource Dividend Reinvestment Plan as custodian for the benefit of his daughter. The reporting person is a co-trustee of the trust and has the right, following settlor's death, to request interest and principal from the trust. The reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. William G. Barron 2009-06-12