EXELON CORP — Director's Dealing 2018

May 9, 2018

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: EXELON CORP (EXC)
CIK: 0001109357
Period of Report: 2018-05-08

Reporting Person: Nigro Joseph (Sr. EVP & Chief Fin. Officer)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	81873	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted Stock Unit Awards	$		Common Stock (35073)		Direct
Restricted Stock Unit Award (01/29/2018)	$		Common Stock (40000)		Direct
NQ Stock Option (right to buy) 03/12/2012	$39.81		Common Stock (13000)		Direct
NQ Stock Option (right to buy) 01/24/2011	$43.40		Common Stock (13400)		Direct
NQ Stock Option (right to buy) 01/25/2010	$46.09		Common Stock (3800)		Direct
NQ Stock Option (right to buy) 01/26/2009	$56.51		Common Stock (4300)		Direct

Footnotes

F1: Restricted stock unit awards granted pursuant to the Exelon Long Term Incentive Plan. Share awards are granted annually by the Compensation and Leadership Development committee at its January meeting and vest in 1/3 increments on the date of the committee's January meeting in the first, second and third years after the award was granted.

F2: Balance is composed of 7,836 shares which represents the last 1/3 increment of the restricted stock unit award granted in January 2016; 11,717 shares which represents 2/3 of the restricted stock unit award granted in January 2017; and 15,519 shares which is the entire restricted stock unit award granted in January 2018.

F3: Restricted stock unit award granted pursuant to the Exelon Long Term Incentive Plan. 100% of the shares vest on January 29, 2022.

F4: Non qualified employee stock option awards granted 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.