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
X	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* Regiment Capital Ltd. (Last) (First) (Middle) C/O MAPLES AND CALDER, UGLAND HOUSE SOUTH CHURCH STREET (Street) GEORGE TOWN, GRAND CAYMAN E9 KY1-1003 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Greektown Superholdings, Inc. [ GRKT ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner Officer (give title below) X Other (specify below) Former 10% owner
	3. Date of Earliest Transaction (Month/Day/Year) 04/21/2011
	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
Series A-1 Common Stock	04/21/2011		S		8,261	D	$68	0	D
Series A-1 Common Stock								0	I	See Footnote(1)
Series A-1 Common Stock								0	I	See Footnote(2)
Series A-1 Common Stock								0	I	See Footnote(3)
Series A-1 Common Stock								0	I	See Footnote(4)

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* Regiment Capital Ltd. (Last) (First) (Middle) C/O MAPLES AND CALDER, UGLAND HOUSE SOUTH CHURCH STREET (Street) GEORGE TOWN, GRAND CAYMAN E9 KY1-1003 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% owner

1. Name and Address of Reporting Person* Regiment Capital Management LLC (Last) (First) (Middle) 222 BERKELEY STREET, 12TH FLOOR (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% owner

1. Name and Address of Reporting Person* REGIMENT CAPITAL ADVISORS LP (Last) (First) (Middle) 222 BERKELEY STREET, 12TH FLOOR (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% owner

1. Name and Address of Reporting Person* REGIMENT CAPITAL ADVISORS LLC (Last) (First) (Middle) C/O REGIMENT CAPITAL ADVISORS, LP 222 BERKELEY STREET, 12TH FLOOR (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% owner

1. Name and Address of Reporting Person* PETERSON TIMOTHY S (Last) (First) (Middle) C/O REGIMENT CAPITAL ADVISORS, LP 222 BERKELEY STREET, 12TH FLOOR (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director 10% Owner Officer (give title below) X Other (specify below) Former 10% owner

Explanation of Responses:

1. Regiment Capital Management, LLC ("RCM") is the investment manager to Regiment Capital Limited ("RCL") and other institutional accounts that acquired the shares as of June 30, 2010 in exchange for debt securities previously held and sold the shares on April 21, 2011. RCM reports no beneficial ownership of the shares held by RCL or any other account it manages in reliance on the exclusion for asset-based fees under Rule 16a-1(a)(2).

2. Regiment Capital Advisors, LP ("LP") is the manager of RCM and reports no beneficial ownership of the shares held by RCL or other accounts managed by RCM because RCM reports no beneficial ownership of the shares.

3. Regiment Capital Advisors, LLC ("LLC") is the general partner of LP and reports no beneficial ownership of the shares held by RCL or other accounts managed by RCM because LP reports no beneficial ownership of the shares.

4. Timothy Peterson is the managing member of LLC and reports no beneficial ownership of the shares held by RCL or other accounts managed by RCM because LLC reports no beneficial ownership of the shares.

	/s/ Don Seymour as Director for Regiment Capital Ltd.	04/26/2011
	/s/ Derek Meisner as Authorized Signatory for Regiment Capital Management, LLC	04/26/2011
	/s/ Marc Volpe as Chief Compliance Officer for Regiment Capital Advisors, LP	04/26/2011
	/s/ Timothy Peterson as Managing Member for Regiment Capital Advisors, LLC	04/26/2011
	/s/ Timothy Peterson	04/26/2011
	** 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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