X0202 4 2006-05-11 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 2006-05-11 4 S 0 500 54.80 D 25505 D Common Stock 2006-05-11 4 S 0 100 54.81 D 25405 D Common Stock 2006-05-11 4 S 0 200 54.82 D 25205 D Common Stock 2006-05-11 4 S 0 200 54.83 D 25005 D Common Stock 2006-05-11 4 S 0 100 54.84 D 24905 D Common Stock 2006-05-11 4 S 0 200 54.86 D 24705 D Common Stock 2006-05-11 4 S 0 100 54.88 D 24605 D Common Stock 2006-05-11 4 S 0 400 54.91 D 24205 D Common Stock 2006-05-11 4 S 0 200 54.92 D 24005 D Common Stock 2006-05-11 4 S 0 100 54.97 D 23905 D Common Stock 2006-05-11 4 S 0 100 54.99 D 23805 D Common Stock 2006-05-11 4 S 0 200 55.00 D 23605 D Common Stock 2006-05-11 4 S 0 100 55.01 D 23505 D Common Stock 2006-05-11 4 S 0 100 55.02 D 23405 D Common Stock 2006-05-11 4 S 0 100 55.10 D 23305 D Common Stock 2006-05-11 4 S 0 100 55.17 D 23205 D Common Stock 2006-05-11 4 S 0 500 55.30 D 22705 D Common Stock (Deferred Shares) 65707 I By Stock Deferral Plan Exercise and all reported sales were made pursuant to a rule 10b5-1 trading plan entered into on March 16, 2006. Shares were sold through small lots which are reported as individual sales on this form and on other Form 4's being filed simultaneously because the EDGAR system will only accept 30 transactions on a single form. Balance includes 468 shares acquired on 03/10/2006 through the automatic dividend reinvestment feature of Exelon plans. Scott N. Peters, Esq. Attorney in Fact for Elizabeth A. Moler 2006-05-11