Sec Form 3 Filing - Mello Jennifer @ TPG Specialty Lending, Inc. - 2013-03-12

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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, 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 Mello Jennifer 2. Issuer Name and Ticker or Trading Symbol TPG Specialty Lending, Inc. [ NA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Vice President (Last) (First) (Middle) C/O TPG GLOBAL, LLC, 301 COMMERCE STREET, SUITE 3300 3. Date of Earliest Transaction (MM/DD/YY) 03/12/2013 (Street) FORT WORTH, TX76102 4. If Amendment, Date Original Filed (MM/DD/YY) 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 Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 No securities beneficially owned ( 1 ) ( 2 ) ( 3 ) 0 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Mello Jennifer C/O TPG GLOBAL, LLC 301 COMMERCE STREET, SUITE 3300 FORT WORTH, TX76102 Vice President Signatures By: Ronald Cami on behalf of Jennifer Mello (4) 04/19/2013 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Jennifer Mello does not directly own any securities of TPG Specialty Lending, Inc. (the "Issuer"). ( 2 )Ms. Mello is a Vice President of the Issuer and General Counsel to TPG Special Situations Partners, L.P., which is affiliated with TPG Group Holdings (SBS) Advisors, Inc., a Delaware corporation ("Group Advisors"), and Tarrant Capital Advisors, Inc. a Delaware corporation ("Tarrant Capital"). As of the date hereof, Group Advisors may be deemed to beneficially own 33,177 shares of Common Stock (the "TSL Stock") of the Issuer. As of the date hereof, Tarrant Capital may be deemed to beneficially own (i) 28,146 shares of the TSL Stock, (ii) 5,544 shares of Common Stock held by TSL FOF, L.P., a Delaware limited partnership, and (iii) 1 share of Common Stock held by Tarrant Advisors, Inc., a Texas corporation. ( 3 )Ms. Mello disclaims beneficial ownership of the shares of Common Stock that are or may be beneficially owned by Group Holdings or Tarrant Capital or any of their respective affiliates. Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), this filing shall not be deemed an admission that Ms. Mello is, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owner of any securities of the Issuer directly held by Group Advisors, Tarrant Capital or any of their affiliates.

Remarks: 4. Ronald Cami is signing on behalf of Jennifer Mello pursuant to the authorization and designation letter dated April 15, 2013, which is attached here as an exhibit.

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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