EXELON CORP — Director's Dealing 2012

May 2, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: EXELON CORP (EXC)
CIK: 0001109357
Period of Report: 2012-05-01

Reporting Person: DesParte Duane M (Vice President and Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-01	Common Stock	M	4000	$39.30	Acquired	9410	Direct
2012-05-01	Common Stock	F	1259	$39.30	Disposed	8151	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-01	Restricted Stock Units 05/01/2007	$	M	4000	Disposed		Common Stock (4000)	Direct

Footnotes

F1: Shares withheld by the Issuer for reporting person's tax obligation.

F2: Restricted stock units granted under the Issuer's Long Term Incentive Plan. Restricted stock units are settled on a 1 for 1 basis in shares of Exelon common stock.