X0304 4 2011-08-01 0 0001508655 TPG Specialty Lending, Inc. N/A 0001515255 Viola John C/O TPG CAPITAL, L.P. 301 COMMERCE ST., SUITE 3300 FORT WORTH TX 76102 0 1 0 0 Chief Financial Oficer Common Stock 2011-08-01 4 P 0 13.1 1000.00 A 18.4 I See Explanation of Responses Common Stock 2011-08-01 4 P 0 29.1 960.30 A 47.5 I See Explanation of Responses On August 1, 2011, Mr. Viola acquired additional partnership interests in TSL Equity Partners, L.P. ("TSL Equity") from other limited partners of TSL Equity. TSL Equity is a member of TSL Advisers, LLC ("TSL Advisers"), which directly holds shares of the Issuer. As a result, Mr. Viola increased his indirect beneficial ownership of shares of the Issuer held directly by TSL Advisers. TSL Advisers directly holds 7,402 shares of Common Stock of the Issuer (the "TSL Shares"), including 47.5 shares of Common Stock of the Issuer indirectly beneficially owned by Mr. Viola (through his limited partnership interest in TSL Equity Partners, L.P., which is a member of TSL Advisers). (3) Ronald Cami is signing on behalf of Mr. Viola pursuant to the authorization and designation letter dated March 10, 2011, which was previously filed with the Securities and Exchange Commission as an exhibit to a Form 3 filed by Mr. Viola on March 15, 2011 (SEC File No. 000-54245). /s/ Ronald Cami, on behalf of John Viola (3) 2011-08-03