Sixth Street Specialty Lending, Inc. (TSLX) Institutional Ownership

Ownership Summary

Sixth Street Specialty Lending, Inc. (NYSE:TSLX) appears in 247 institutional 13F filings for the quarter ending December 2025.

• Collectively, these holders controlled 52.8% of Sixth Street Specialty Lending's outstanding shares in December 2025, down from 53.7% in September 2025.
• They increased total shares held in Sixth Street Specialty Lending by 5.41% from the prior quarter, while the number of investors in TSLX increased 11.76% year over year.
• Among the 247 funds, 130 bought more Sixth Street Specialty Lending shares, 68 sold down, and 49 held their ground.
• Institutional investors collectively held 49.66Mn shares in Sixth Street Specialty Lending as of December 2025, up by 2.55Mn shares quarter on quarter, and up 975.21K shares year over year.
• Sixth Street Partners Management Company, L.P. is the top holder of Sixth Street Specialty Lending as of December 31, 2025, with 2.71Mn shares representing 2.88% of outstanding stock.
• Leading buyers of Sixth Street Specialty Lending shares for the quarter ending December 2025 were Bank Of Montreal /Can/ (1.85Mn), Morgan Stanley (386.59K), Goldman Sachs Group Inc (319.67K), Altshuler Shaham Ltd (301.46K), UBS Group AG (299.56K).
• The largest sellers of Sixth Street Specialty Lending for the quarter ending December 2025 were Jpmorgan Chase & Co (1.05Mn), Bank Of America Corp /De/ (631.94K), TWO SIGMA ADVISERS, LP (262.99K), Cresset Asset Management, LLC (204.37K), VAN ECK ASSOCIATES CORP (187.14K).
• Business Quant data shows the 10 biggest positions in Sixth Street Specialty Lending as of December 2025 are held by Sixth Street Partners Management Company, L.P. (2.71Mn), Sound Income Strategies, LLC (2.51Mn), Progeny 3, Inc. (2.48Mn), Morgan Stanley (2.39Mn), VAN ECK ASSOCIATES CORP (2.34Mn), Bank Of Montreal /Can/ (2.28Mn), STRS OHIO (2.15Mn), UBS Group AG (1.62Mn), Allen Investment Management, LLC (1.56Mn), ARES MANAGEMENT LLC (1.35Mn).