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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1. Name and Address of Reporting Person *   Houston Julia A 2. Date of Event Requiring Statement (Month/Day/Year) 05/31/2009 3. Issuer Name and Ticker or Trading Symbol MIRANT CORP [MIR] (Last) (First) (Middle) 1155 PERIMETER CENTER WEST 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP and General Counsel 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) ATLANTA, GA 30338 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 34,841 (1) D Â

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
Stock Options	  (2)	01/13/2016	Common Stock	2,537	$ 24.64	D	Â
Stock Options	  (2)	02/17/2016	Common Stock	2,495	$ 25.05	D	Â
Stock Options	  (3)	03/08/2012	Common Stock	3,862	$ 37.71	D	Â
Stock Options	  (4)	03/07/2013	Common Stock	9,125	$ 37.02	D	Â
Stock Options	  (5)	03/03/2019	Common Stock	25,006	$ 10.4	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Houston Julia A 1155 PERIMETER CENTER WEST ATLANTA, GA 30338	Â	Â	  SVP and General Counsel	Â

Signatures

/s/ David E. Howard, Attorney-in-Fact		06/08/2009
**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)	Includes 28,650 restricted stock units that are subject to time-based vesting. Each restricted stock unit represents a contingent right to receive one share of Mirant Corporation common stock.
(2)	The stock options are fully vested.
(3)	Includes 1,931 stock options that are fully vested and 1,931 stock options which will vest on 3/08/10.
(4)	Includes 3,042 stock options that are fully vested and 6,083 stock options which will vest 50% on 3/07/2010 and 50% on 3/07/2011.
(5)	The stock options have a three year vesting period, 33 1/3% on 3/03/2010, 33 1/3% on 3/03/2011 and 33 1/3% on 3/03/2012.
  Remarks: Exhibit List 24.1 - Power of Attorney dated May 27, 2009

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