X0202 5 2007-12-31 0 0 0001109357 EXELON CORP EXC 0001184021 MOLER ELIZABETH A 10 SOUTH DEARBORN STREET 54TH FLOOR CHICAGO IL 60603 0 1 0 0 Executive Vice President Common Stock 24117 D Perf. Shares - Stk Units Common Stock 21567 21567 D Def. Comp. Phantom Shares Common Stock 193 193 D NQ Stk Ops 10/20/2000 29.75 Common Stock 37500 37500 D NO Stk Ops 01/26/2004 32.54 Common Stock 54000 54000 D NQ Stk Ops 01/24/2005 42.85 Common Stock 36000 36000 D NQ Stk Ops 01/23/2006 58.55 Common Stock 30000 30000 D NQ Stk Ops 01/22/2007 59.96 Common Stock 28000 28000 D Balance includes 5,000 restricted shares. Balance includes 87 shares acquired on 03/10/2007, 79 shares on 06/11/2007, 113 shares on 09/10/2007 and 97 shares on 12/10/2007 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 vested immediately upon receipt. The remaining shares vest in 1/3 increments on each of the first and second anniversaries of the grant 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. Balance includes 141 shares acquired on 03/10/2007, 129 shares on 06/11/2007, 128 shares on 09/10/2007 and 110 shares on 12/10/2007 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. 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. 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. Elizabeth A. Moler 2008-01-24