X0202 4 2005-09-30 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 26687 D Common Stock (Deferred Shares) 64762 I By Stock Deferral Plan Performance Shares - Stock Units Common Stock 18833 D Deferred Comp. - Phantom Shares 2005-09-30 4 A 0 15 53.44 A Common Stock 15 2289 D Balance includes 47 shares acquired on 09/10/2005 through the automatic dividend reinvestment feature of Exelon plans. Balance includes 459 shares acquired on 09/10/2005 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 first and second 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 133 shares acquired on 09/10/2005 through the automatic dividend reinvestment feature of Exelon plans. 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 16 shares acquired on 09/10/2005 through the automatic dividend reinvestment feature of Exelon plans. Scott N. Peters, Esq. Attorney in Fact for Elizabeth A. Moler 2005-10-03