X0202 4 2005-05-13 0001109357 EXELON CORP EXC 0001184021 MOLER ELIZABETH A 10 SOUTH DEARBORN STREET 37TH FLOOR CHICAGO IL 60603 0 1 0 0 Executive Vice President Common Stock 2005-05-13 4 M 0 11666 23.46 A 38252 D Common Stock 2005-05-13 4 S 0 11666 46.96 D 26586 D Common Stock (Deferred Shares) 63782 I By Stock Deferral Plan Performance Shares - Stock Units Common Stock 18548 D NQ Stock Options (01/28/2002) 23.46 2005-05-13 4 M 0 11666 D Common Stock 11666 58334 D Deferred Comp. - Phantom Shares 2005-05-13 4 A 0 18 45.25 A Common Stock 18 2101 D Exercise and sale made pursuant to a rule 10b5-1 trading plan entered into on March 4, 2005. Balance includes 56 shares acquired on 03/10/2005 through the automatic dividend reinvestment feature of Exelon plans. Balance includes 546 shares acquired on 03/10/2005 through the automatic dividend reinvestment feature of Exelon plans. 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 second and third anniversaries of the award date. Under certain circumstances up to one half of the second and third vestings may either be settled in common stock on a 1 for 1 basis, or be settled in cash based on the cash value of the underlying stock on the date of vesting. Balance includes 159 shares acquired on 03/10/2005 through the automatic dividend reinvestment feature of Exelon plans. Non qualified employee stock options, awarded pursuant to the Exelon Long Term Incentive Plan. Options vest in 1/3 increments on each of the first three anniversaries of the grant date, referenced in column one, and expire on the tenth anniversay of the grant date. Phantom shares held in a multi-fund deferred compensation plan to be settled for cash upon the reporting person's termination of employment for any reason on a 1:1 basis. Shares are acquired through regular periodic contributions, company matching contributions, and the automatic reinvestment of dividends. Balance includes 18 shares acquired on 03/10/2005 through the automatic dividend reinvestment feature of Exelon plans. Scott N. Peters, Esq. Attorney in Fact for Elizabeth A. Moler 2005-05-16