X0303 4 2009-01-26 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 2009-01-26 4 M 0 23631 56.51 A 43314 D Common Stock 2009-01-26 4 F 0 8289 56.51 D 35025 D Common Stock 2009-01-26 4 D 0 15343 56.51 D 19682 D Performance Shares - Stock Units 2009-01-26 4 A 0 20800 56.51 A Common Stock 20800 45748 D Performance Shares - Stock Units 2009-01-26 4 M 0 23631 56.51 D Common Stock 23631 22116 D NQ Stock Options 01/26/2009 56.51 2009-01-26 4 A 0 30700 A Common Stock 30700 30700 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 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. Vested amount includes 1/3 of the current grant, the second 1/3 of the grant made in January 2008 and the third and final 1/3 of the grant made in January 2007. Shares withheld by the Issuer for reporting person's tax obligation. Shares settled in cash on a 1 for 1 basis. 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. Lawrence C. Bachman, Attorney in Fact for Elizabeth A. Moler 2009-01-28