SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Thayer Jonathan W (Last) (First) (Middle) 10 SOUTH DEARBORN STREET 54TH FLOOR (Street) CHICAGO IL 60603 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol EXELON CORP [ EXC ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) EVP and CFO
	3. Date of Earliest Transaction (Month/Day/Year) 01/27/2014
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	01/27/2014		M		27,042	A	$28.2	40,040(1)	D
Common Stock	01/27/2014		M		8,194	A	$28.2	48,234	D
Common Stock	01/27/2014		F		11,628(2)	D	$28.2	36,605	D
Common Stock	01/27/2014		D		18,153(3)	D	$28.2	18,453	D
Common Stock (Restricted Stock Shares)								13,026(4)	D
Common Stock- 401k Plan Shares								1,607(5)	I	by 401k Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit Award 01/27/2014	$0	01/27/2014		A		27,900		(6)	(6)	Common stock	27,900	$0(6)	27,900	D
Restricted Stock Unit Award 01/28/2013	$0	01/27/2014		M			8,194	(6)	(6)	Common stock	8,194	$28.2	15,913(7)	D
Performance Shares- Stock Units	$0	01/27/2014		A		12,043		(8)	(8)	Common stock	12,043	$0(8)	42,043	D
Performance Shares- Stock Units	$0	01/27/2014		M			27,042	(9)	(9)	Common stock	27,042	$28.2	15,000	D

Explanation of Responses:

1. Balance includes 149 shares acquired on March 8, 2013; 124 shares acquired on June 10, 2013; 131 shares acquired on September 10, 2013; and 142 shares acquired on December 10, 2013 through automatic dividend reinvestment.

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

3. Shares settled in cash on a 1 for 1 basis.

4. Balance includes 204 shares acquired on March 8, 2013; 125 shares acquired on June 10, 2013; 129 shares acquired on September 10, 2013; and 142 shares acquired on December 10, 2013 through automatic dividend reinvestment.

5. Shares held as of December 31, 2013 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.

6. Restricted stock unit award made pursuant to the Exelon Long Term Incentive Plan. 1/3 of the shares awarded will vest upon the first, second and third anniversary date that is referenced in column 1.

7. Balance includes 376 shares acquired on March 8, 2013; 231 shares acquired on June 10, 2013; 238 shares acquired on September 10, 2013; and 262 shares acquired on December 10, 2013 through automatic dividend reinvestment.

8. Transition performance shares awarded pursuant to the Exelon Long Term Incentive Plan in connection with transition from one-year to three-year performance period for the performance share award program. Shares vest immediately upon award.

9. Performance Shares awarded pursuant to the Exelon Long Term Incentive Plan. 1/3 of the shares awarded vest immediately upon receipt. The remaining shares vest in 1/3 increments on each of the first and second anniversaries of the grant date. Under certain circumstances some or all of the vested shares may be settled in cash on a 1 for 1 basis based on the cash value of the underlying stock on the date of vesting.

Remarks:

	Scott N. Peters, Attorney in Fact for Jonathan W. Thayer	01/29/2014
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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