X0201 5 2003-12-31 0 0 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 15582 D Common Stock (Deferred Shares) 16510 I By Stock Deferral Plan Deferred Comp. - Phantom Shares Common Stock 820 820 D NQ Stock Options 10-20-2000 59.50 Common Stock 63000 63000 D NQ Stock Options 01-28-2002 46.92 Common Stock 35000 35000 D NQ Stock Options 01-27-2003 49.61 Common Stock 27000 27000 D Includes 64 shares acquired on 12/10/2003 through the automatic dividend reinvestment feature of Exelon plans. Includes 128 shares acquired on 12/10/2003 through the automatic dividend reinvestment feature of Exelon plans. Shares held as of 12/31/2003 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 and the automatic reinvestment of dividends. Non-qualified stock options vest in 1/3 increments on the first three anniversaries of the grant date (referenced in Column 1) and expire ten years from the grant date unless terminated earlier under the terms of the option plan or grant. Non-qualified stock options vest in 1/4 increments on the first four anniversaries of the grant date (referenced in Column 1) and expire ten years from the grant date unless terminated earlier under the terms of the option plan or grant. Elizabeth A. Moler 2004-02-10