Ownership Submission
FORM 5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Form 3 Holdings Reported
Form 4 Transactions Reported
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person *
Adams Craig L
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)
President & CEO; PECO Energy
(Last)
(First)
(Middle)

10 SOUTH DEARBORN STREET, 54TH FLOOR
3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2015
(Street)


CHICAGO, IL 60603
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Reporting
(check applicable line)

_X_ Form Filed by One Reporting Person
___ Form Filed by More than One Reporting Person
(City)
(State)
(Zip)
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 at end of Issuer's Fiscal Year
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Amount (A) or (D) Price
Common Stock             34,080 (1) D  
Common Stock (ESPP Shares)             367 (2) D  

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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 Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned at End of Issuer's Fiscal Year
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
(A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Unit Awards $ 0             (3)   (3) Common Stock
17,610
  17,610 (4)
D
 
NQ Stock Option 03/12/2012 $ 39.81             (5)   (5) Common Stock
35,000
  35,000
D
 
NQ Stock Option 01/24/2011 $ 43.4             (5)   (5) Common Stock
21,000
  21,000
D
 
NQ Stock Option 01/25/2010 $ 46.09             (5)   (5) Common Stock
10,500
  10,500
D
 
NQ Stock Option 01/26/2009 $ 56.51             (5)   (5) Common Stock
11,700
  11,700
D
 
NQ Stock Option 01/28/2008 $ 73.29             (5)   (5) Common Stock
8,300
  8,300
D
 
NQ Stock Option 01/22/2007 $ 59.96             (5)   (5) Common Stock
8,500
  8,500
D
 
NQ Stock Option 01/23/2006 $ 58.55             (5)   (5) Common Stock
8,500
  8,500
D
 

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Adams Craig L
10 SOUTH DEARBORN STREET
54TH FLOOR
CHICAGO, IL 60603
      President & CEO; PECO Energy  

Signatures

Scott N. Peters, Esq. Attorney in Fact for Craig L. Adams 01/07/2016
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Balance includes 315, 310, 342 and 387 shares acquired on March 10, 2015, June 10, 2015, September 10 2015 and December 10, 2015 respectively through automatic dividend reinvestment.
(2) Shares acquired through Exelon's Section 423 tax-qualified Employee Stock Purchas Plan. Balance includes 2 shares acquired on December 10, 2015 through automatic dividend reinvestment.
(3) Restricted stock unit awards made pursuant to the Exelon Long Term Incentive Plan. Share awards are made annually in January at the Compensation and Leadership Development committee's 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 made.
(4) Balance consists of unvested shares remaining from the awards granted in January of the previous three years along with reinvested dividends as follows: 163, 155, 180 and 204 shares acquired on March 10, 2015, June 10, 2015, September 10, 2015 and December 10, 2015 respectively.
(5) 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.

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