FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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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(Print or Type Responses)

1. Name and Address of Reporting Person *   MITCHELL J BARRY 2. Date of Event Requiring Statement (Month/Day/Year) 03/01/2005 3. Issuer Name and Ticker or Trading Symbol EXELON CORP [EXC] (Last) (First) (Middle) 10 SOUTH DEARBORN STREET, 37TH FLOOR 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Senior Vice President and CFO 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) CHICAGO, IL 60603 6. Individual or Joint/Group Filing(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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 22,613 D   Common Stock (401k Shares) 5,441 D   Common Stock (Deferred Shares) 19,228 I By Stock Deferral Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Performance Shares - Stock Units	  (1)	  (1)	Common Stock	11,060	$ (1)	D	Â
Deferred Comp. Phantom Shares	  (2)	  (2)	Common Stock	4,837	$ (2)	D	Â
NQ Stock Options (02-23-1999)	  (3)	  (3)	Common Stock	27,000	$ 18.84	D	Â
NQ Stock Options (02-29-2000)	  (3)	  (3)	Common Stock	21,600	$ 18.66	D	Â
NQ Stock Options (10-20-2000)	  (3)	  (3)	Common Stock	24,000	$ 29.75	D	Â
NQ Stock Options (01-28-2002)	  (3)	  (3)	Common Stock	30,000	$ 23.46	D	Â
NQ Stock Options (01-27-2003)	  (4)	  (4)	Common Stock	30,000	$ 24.81	D	Â
NQ Stock Options (01-26-2004)	  (4)	  (4)	Common Stock	30,000	$ 32.54	D	Â
NQ Stock Options (01-24-2005)	  (4)	  (4)	Common Stock	21,000	$ 42.85	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MITCHELL J BARRY 10 SOUTH DEARBORN STREET 37TH FLOOR CHICAGO, IL 60603	Â	Â	  Senior Vice President and CFO	Â

Signatures

Scott N. Peters, Attorney in Fact for J. Barry Mitchell		03/01/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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)	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 second and third anniversaries of the award date. At the election of the reporting person, under certain circumstances up to one half of the second and third vestings may either be settled in common stock on a 1 for 1 basis, or be settled in cash based on the cash value of the underlying stock on the date of vesting.
(2)	Phantom shares held in a multi-fund deferred compensation plan to be settled for 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.
(3)	Non qualified employee stock options, awarded pursuant to the Exelon Long Term Incentive Plan. Options vest in 1/3 increments on each of the first three anniversaries of the grant date, referenced in column one, and expire on the tenth anniversay of the grant date.
(4)	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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