X0202 4 2007-03-01 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 2007-03-01 4 M 0 13500 24.805 A 36460 D Common Stock 2007-03-01 4 S 0 100 64.37 D 36360 D Common Stock 2007-03-01 4 S 0 100 64.40 D 36260 D Common Stock 2007-03-01 4 S 0 300 64.42 D 35960 D Common Stock 2007-03-01 4 S 0 200 64.43 D 35760 D Common Stock 2007-03-01 4 S 0 100 64.49 D 35660 D Common Stock 2007-03-01 4 S 0 100 64.52 D 35560 D Common Stock 2007-03-01 4 S 0 100 64.53 D 35460 D Common Stock 2007-03-01 4 S 0 100 64.60 D 35360 D Common Stock 2007-03-01 4 S 0 100 64.61 D 35260 D Common Stock 2007-03-01 4 S 0 300 64.64 D 34960 D Common Stock 2007-03-01 4 S 0 200 64.70 D 34760 D Common Stock 2007-03-01 4 S 0 100 64.71 D 34660 D Common Stock 2007-03-01 4 S 0 400 64.75 D 34260 D Common Stock 2007-03-01 4 S 0 100 64.81 D 34160 D Common Stock 2007-03-01 4 S 0 200 64.84 D 33960 D Common Stock 2007-03-01 4 S 0 1100 64.87 D 32860 D Common Stock 2007-03-01 4 S 0 100 64.89 D 32760 D Common Stock 2007-03-01 4 S 0 200 64.90 D 32560 D Common Stock 2007-03-01 4 S 0 100 64.93 D 32460 D Common Stock 2007-03-01 4 S 0 100 64.94 D 32360 D Common Stock 2007-03-01 4 S 0 100 64.99 D 32260 D Common Stock 2007-03-01 4 S 0 200 65.03 D 32060 D Common Stock 2007-03-01 4 S 0 200 65.08 D 31860 D Common Stock 2007-03-01 4 S 0 100 65.10 D 31760 D Common Stock 2007-03-01 4 S 0 100 65.13 D 31660 D Common Stock 2007-03-01 4 S 0 200 65.14 D 31460 D NQ Stock Options 01/27/2003 24.805 2007-03-01 4 M 0 13500 D Common Stock 13500 0 D 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 4s being filed simultaneously because the EDGAR system will only accept 30 transactions on a single form. 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. Scott N. Peters, Esq. Attorney in Fact for Elizabeth A. Moler 2007-03-05