X0201 42004-01-01 0001109357 EXELON CORP EXC 0001184019 KINGSLEY OLIVER D JR 10 SOUTH DEARBORN STREET 37TH FLOOR CHICAGO IL 60603 0100PresidentCommon Stock2004-01-014F0214466.36D39802DCommon Stock (Deferred Shares)67265IBy Stock Deferral PlanOn 01/01/2004, 7,000 resticted shares vested and were transferred to direct ownership net of shares withheld for taxes.Includes 222 shares acquired on 09/10/2003 and 12/10/2003 through the automatic dividend reinvestment feature of Exelon plans.Includes 1,071 shares acquired on 09/10/2003 and 12/10/2003 through the automatic dividend reinvestment feature of Exelon plans.Scott N. Peters, Attorney in Fact for Oliver D. Kingsley, Jr.2004-01-05