X0202 4 2007-12-31 0 0000357173 OLD SECOND BANCORP INC OSBC 0001381317 Sloan Rodney 37 S. RIVER ST. AURORA IL 60506 0 1 0 0 Chief Risk Officer Old Second Bancorp Inc. Common Stock 2007-12-31 4 A 0 24 A 4898 I Profit Sharing Old Second Bancorp Inc. Common Stock 3954 D Employee Stock Option (Right to Buy 32.59 2005-12-20 2014-12-21 Common Stock 7000 7000 D Employee Stock Option (Right to Buy 25.08 2005-12-20 2013-12-16 Common Stock 7000 7000 D Does not apply. Of this total, 24 shares were allocated during the fourth quarter pursuant to the Old Second Employee Profit Sharing Plan & Trust. Information provided herein is based on information provided by the Plan Trustee as of 12-31-07. Included in this total are 600 shares held in Mr. Sloan's name alone and 3,247 shares of restricted stock issued in the name of Rodney Sloan. The amount reported reflects 107 shares that were inadvertently unreported by Mr. Sloan. Shares restated for a 2 for 1 stock split effected in the form of a stock dividend payable 7-28-04. /s/ Rodney Sloan 2007-12-31