SEC Form 3

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 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* MSSB TPG Specialty Lending Onshore Feeder Fund (Last) (First) (Middle) C/O MORGAN STANLEY GWM FEEDER STRATEGIES 522 FIFTH AVENUE, 13TH FLOOR (Street) NEW YORK NY 10036 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 08/01/2011	3. Issuer Name and Ticker or Trading Symbol TPG Specialty Lending, Inc. [ N/A ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

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	12,539(1)(2)	D

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: 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

Explanation of Responses:

1. Morgan Stanley GWM Feeder Strategies LLC is the managing owner of the reporting person, and is a wholly-owned subsidiary of Morgan Stanley Smith Barney Holdings LLC. Morgan Stanley Smith Barney Holdings LLC is indirectly majority-owned by Morgan Stanley.

2. Although MSSB TPG Specialty Lending Onshore Feeder Fund (the "Trust") beneficially owns 12,539 shares of the common stock of the issuer and would otherwise be entitled to vote such shares, the Trust has contractually agreed to pass such voting rights through to the Trust's underlying investors (each a "Unitholder" and collectively, the "Unitholders") pro rata in accordance with each Unitholder's relative ownership of units of the Trust. Each Unitholder will make its own determination as to how to vote with respect to its portion of the Trust's shares of the issuer, as well as whether or not to vote with respect to such shares. If Unitholders representing a certain percentage vote their interests, the Trust will vote all shares in accordance with the votes received. If, however, less than the agreed upon representative vote is received, the Trust will not vote any of the shares.

	/s/ John Sweeney, On behalf of Morgan Stanley GWM Feeder Strategies LLC, the managing owner of the reporting person	08/11/2011
	** 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 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).
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