X0202 4 2005-02-24 0 0000720002 MAINSOURCE FINANCIAL GROUP MSFG 0001055525 DEFFNER DALE J 9005 HIDDEN VALLEY LANE BROOKVILLE IN 47012 1 0 0 0 Common Stock 2005-01-25 4 G 0 2808 0 D 89635 D Common Stock 2005-01-25 4 G 0 3123 0 D 100185 I By Spouse Common Stock 2005-01-25 4 G 0 0 0 D 13484.65 I By IRA Common Stock 2005-01-25 4 G 0 0 0 D 14179.25 I By IRA FBO Spouse Stock Option (Right to Buy) 14.03 2005-02-23 4 X 0 1653.75 0 D 2003-05-19 2013-05-18 Common Stock 1653.75 0 D Stock Option (Right to Buy) 22.26 2004-02-23 4 A 0 1575 0 A 2004-02-23 2014-02-22 Common Stock 1575 1575 D Stock Option (Right to Buy) 21.60 2005-02-22 4 A 0 1000 0 A 2005-02-22 2015-02-21 Common Stock 1000 1000 D Includes shares acquired under the MainSource dividend reinvestment plan. Includes shares received on January 9, 2004 pursuant to a 5% stock dividend declared by MainSource on November 24, 2003, payable to all holders of record of common stock of MainSource on December 22, 2003. Also includes shares received on January 15, 2005 pursuant to a 5% stock dividend declared by MainSource on November 22, 2004, payable to all holders of record of common stock of MainSource on December 31, 2004. On April 16, 2004, the common stock of MainSource split 3 for 2 resulting in the acquisition of additional shares of common stock. This option vests immediately. This option was previously reported as an option for 1,000 shares of common stock at an exercise price of $23.20 per share, but was adjusted to reflect the stock dividend paid by MainSource on January 9, 2004, the stock split on April 16, 2004, and the stock dividend paid by MainSource on January 15, 2005. This option vests immediately. This option was previously reported as an option for 1,000 shares of common stock at an exercise price of $35.06 per share, but was adjusted to reflect the stock split on April 16, 2004, and the stock dividend paid by MainSource on January 15, 2005. Dale J. Deffner 2005-02-24