X0201 4 2003-12-23 0 0000720002 MAINSOURCE FINANCIAL GROUP msfg 0001256237 BARRON WILLIAM G 726 HARVARD DRIVE OWENSBORO KY 42301 1 0 0 0 Common 2003-12-23 4 P 0 1358 30.99 A 293581 I Trust A Common 2003-12-23 4 P 0 184 30.99 A 293581 I FBO Children Common 2003-12-23 4 P 0 39 30.99 A 293581 I Self/IRA Common 2003-12-23 4 P 0 38 30.99 A 293581 I Spouse/IRA These totals include some shares acquired through the Dividend Reinvestment Plan and shares acquired through a 5% stock dividend issued by the company on January 17, 2003. Summary of Ownership: Self 13,072; Self/IRA 15,976; Spouse/IRA 17,976; FBO Children 18,486; Trust A 28,089; Family Trust 121,611; Partnership 72,244; Barron Enterprises 6,127. Total Shares 293,581 William G. Barron 2003-12-23