X0202 3 2008-02-08 0 0001109357 EXELON CORP EXC 0001425472 DesParte Duane M 10 SOUTH DEARBORN STREET 54TH FLOOR CHICAGO IL 60603 0 1 0 0 VP & Controller as of 2-8-2008 Common Stock 11217 D Performance Shares - Stock Units Common Stock 4976 D NQ Stock Options 01/26/2004 32.54 Common Stock 3250 D NQ Stock Options 01/24/2005 42.85 Common Stock 6450 D NQ Stock Options 01/23/2006 58.55 Common Stock 6500 D NQ Stock Options 01/22/2007 59.96 Common Stock 6000 D Balance includes 4,000 restricted shares. Performance Shares awarded pursuant to the Exelon Long Term Incentive Plan. 1/3 of the shares awarded vest immediately upon receipt. The remaining shares vest in 1/3 increments on each of the first and second anniversaries of the award date. Under certain circumstances some or all of the vested shares may be settled in cash on a 1 for 1 basis based on the cash value of the underlying stock on the date of vesting. Non qualified employee stock options, awarded pursuant to the Exelon Long Term Incentive Plan. Options vest in 1/4 increments on each of the first four anniversaries of the grant date, referenced in column one, and expire on the tenth anniversay of the grant date. Scott N. Peters, Attorney in Fact for Duane M. DesParte 2008-02-15