EXELON CORP — Director's Dealing 2017

Jul 28, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: EXELON CORP (EXC)
CIK: 0001109357
Period of Report: 2017-07-27

Reporting Person: Thayer Jonathan W (Senior EVP and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-07-27	Common Stock	M	155708	$21.25	Acquired	237181	Direct
2017-07-27	Common Stock	S	155708	$38.00	Disposed	81473	Direct
2017-07-27	Common stock	S	47242	$38.00	Disposed	34231	Direct
2017-07-28	Common Stock	M	11961	$21.25	Acquired	46192	Direct
2017-07-28	Common Stock	S	11961	$38.01	Disposed	34231	Direct
2017-07-28	Common Stock	S	758	$38.01	Disposed	33473	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-07-27	NQ Stock Options 02/27/2009	$21.25	M	155708	Disposed		Common Stock (155708)	Direct
2017-07-28	NQ Stock Options 02/27/2009	$21.25	M	11961	Disposed		Common Stock (11961)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock (401k Shares)	1811	Indirect

Footnotes

F1: Exercise & sale of shares made pursuant to a Rule 10b5-1 Trading Plan executed on December 16, 2016.

F2: Shares were sold in lots ranging in price from $38.00 to $38.03. Mr. Thayer undertakes to provide upon request by the SEC Staff, the issuer, or a security holder of the issuer, full information rgarding the number of shares purchased or sold at each separate price.

F3: Shares held as of June 30, 2017 in a multi-fund 401(k) Plan to be settled in cash upon the reporting person's termination of employment for any reason on a 1:1 basis. Shares are acquired through regular periodic contributions, company matching contributions, and the automatic reinvestment of dividends.

F4: Non-qualified employee stock options originally granted by Constellation Energy Group that vested and were converted pursuant to the Merger Agreement. Each Constellation option was converted into an option to purchase Exelon common stock at the rate of 0.93 shares of Exelon common stock for each share of Constellation common stock at a strike price equal to the quotient of the original Constellation strike price and 0.93. The grant is fully vested and will expire on the tenth anniversary of the grant date referenced in Column 1.

F5: Shares were sold in lots ranging in price from $38.00 to $38.04. Mr. Thayer undertakes to provide upon request by the SEC Staff, the issuer, or a security holder of the issuer, full information rgarding the number of shares purchased or sold at each separate price.

F6: Shares were sold in lots ranging in price from $38.00 to $38.06. Mr. Thayer undertakes to provide upon request by the SEC Staff, the issuer, or a security holder of the issuer, full information rgarding the number of shares purchased or sold at each separate price.