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* CRT CAPITAL HOLDINGS LLC (Last) (First) (Middle) 262 HARBOR DR (Street) STAMFORD CT 06902 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol MRU HOLDINGS INC [ UNCL ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 03/12/2007
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X 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(1)	03/12/2007		S		15,300	D	$6.76	2,217,787	I(2)	See footnote(3)
Common Stock(1)	03/12/2007		S		12,925	D	$6.65	2,204,862	I(2)	See footnote(3)
Common Stock(1)	03/12/2007		S		16,150	D	$6.45	2,188,712	I(2)	See footnote(3)

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

1. Name and Address of Reporting Person* CRT CAPITAL HOLDINGS LLC (Last) (First) (Middle) 262 HARBOR DR (Street) STAMFORD CT 06902 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* CRT Capital Group LLC (Last) (First) (Middle) 262 HARBOR DRIVE (Street) STAMFORD CT 06902 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Harbor Drive Special Situations Master Fund, Ltd. (Last) (First) (Middle) 262 HARBOR DRIVE (Street) STAMFORD CT 06902 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Harbor Drive Asset Management LLC (Last) (First) (Middle) 262 HARBOR DRIVE (Street) STAMFORD CT 06902 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Vaughn C Michael (Last) (First) (Middle) 262 HARBOR DRIVE (Street) STAMFORD CT 06902 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Young J Christopher (Last) (First) (Middle) 262 HARBOR DRIVE (Street) STAMFORD CT 06902 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. See Exhibit 99.2, item 1.

2. See Exhibit 99.2, item 2.

3. See Exhibit 99.2, item 3.

Remarks:

Following the reported transactions, the Reporting Persons cease to be 10% owners of the Common Stock of the Issuer. Exhibit List Exhibit 99.1 - Joint Filer Information Exhibit 99.2 - Supplemental Information

	/s/ C. Michael Vaughn, as Authorized Person on behalf of the following: CRT CAPITAL HOLDINGS LLC, CRT CAPITAL GROUP LLC, HARBOR DRIVE SPECIAL SITUATIONS MASTER FUND, LTD., HARBOR DRIVE ASSET MANAGEMENT LLC, C. Michael Vaughn	03/14/2007
	/s/ J. Christopher Young	03/14/2007
	** 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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