X0202 4 2005-12-20 0 0000720002 MAINSOURCE FINANCIAL GROUP MSFG 0001256292 FRANTZ PHILIP A 4637 W. 200 S. PORTLAND IN 47371 1 0 0 0 Common Stock 2005-12-21 4 G 0 500 0.00 D 38655.4415 D Common Stock 2005-12-21 4 G 0 230 0.00 D 38425.4415 D Common Stock 2005-12-21 4 G 0 36 0.00 D 38389.4415 D Common Stock 2005-12-21 4 G 0 29 0.00 D 1641.7488 I By Spouse Includes 268.4546 Shares acquired on 12/15/05 and 257.8016 Shares acquired on 9/15/2005 under the MainSource Dividend Reinvestment Plan. Includes 11.8436 Shares acquired on 12/15/05 and 11.3735 Shares acquired on 9/15/2005 under the MainSource Dividend Reinvestment Plan. Philip A. Frantz 2005-12-20