X0201 4 2004-01-26 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 2004-01-26 4 A 0 2275 A 15445 D Common Stock 2004-01-26 4 F 0 214 65.08 D 9004 D Common Stock (Deferred Shares) 22737 I By Stock Deferral Plan NQ Stock Options 01-26-2004 65.08 2004-01-26 4 A 0 27000 A Common Stock 27000 27000 D Performance Shares - Stock Units 2004-01-26 4 A 0 4550 A Common Stock 4550 6962 D 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 1/3 on each of the second and third anniversaries of the award date. At the election of the reporting person, 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. Unvested Performance Shares previously reported as Common Stock in Table 1, which are now subject to the payout election described in Note (1) above, are now shown in Table II. Reporting person elected to defer receipt of vested shares, by transferring them to a Stock Deferral Plan net of shares withheld for tax obligations. Balance also reflects the vesting of prior year's awards (4,166 shares), which were also transferred from direct ownership to the Stock Deferral Plan net of shares withheld for tax obligations. Balance includes those shares deferred as noted above, net of shares withheld for tax obligation. Non-qualified stock options awarded pursuant to the Exelon Long Term Incentive Plan. 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. Scott N. Peters, Esq. Attorney in Fact for Elizabeth A. Moler 2004-01-28