Edgar Filing: GILLIS RUTH ANN M

Ownership Submission

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 ^*

Â GILLIS RUTH ANN M

2. Date of Event Requiring Statement (Month/Day/Year)
01/29/2008

3. Issuer Name and Ticker or Trading Symbol
EXELON CORP [EXC]

(Last)

(First)

(Middle)

10 SOUTH DEARBORN STREET,Â 54TH FLOOR

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

_____ Director	_____ 10% Owner
__X__ Officer (give title below)	_____ Other (specify below)
Executive Vice President

5. If Amendment, Date Original Filed(Month/Day/Year)

(Street)

CHICAGO,Â ILÂ 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	3,251	D	Â
Common Stock (Deferred Shares)	41,223	I	By Stock Deferral Plan
Common Stock (401k Shares)	25 ⁽¹⁾	D	Â
Common Stock	19,101	I	Held in trust accounts.

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Performance Shares - Stock Units	Â ⁽²⁾	Â ⁽²⁾	Common Stock	19,042	$ ⁽²⁾	D	Â
Deferred Comp. Phantom Shares	Â ⁽³⁾	Â ⁽³⁾	Common Stock	226	$ ⁽⁴⁾	D	Â
NQ Stock Options 01/26/2004	Â ⁽⁴⁾	Â ⁽⁴⁾	Common Stock	27,000	$ 32.54	D	Â
NQ Stock Options 01/24/2005	Â ⁽⁴⁾	Â ⁽⁴⁾	Common Stock	36,000	$ 42.85	D	Â
NQ Stock Options 01/23/2006	Â ⁽⁴⁾	Â ⁽⁴⁾	Common Stock	24,000	$ 58.55	D	Â
NQ Stock Options 01/22/2007	Â ⁽⁴⁾	Â ⁽⁴⁾	Common Stock	24,000	$ 59.96	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
GILLIS RUTH ANN M 10 SOUTH DEARBORN STREET 54TH FLOOR CHICAGO,Â ILÂ 60603	Â	Â	Â Executive Vice President	Â

Signatures

Scott N. Peters, Attorney in Fact for Ruth Ann M. Gillis		02/08/2008
^**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)	Shares held as of 01/28/2008 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.
(2)	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 award 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.
(3)	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.
(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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