Sixth Street Specialty Lending, Inc.
TSLX- Exchange
- NYSE
- SEC CIK
- 0001508655
No open-market purchases or sales by Sixth Street Specialty Lending, Inc. insiders were filed in the last 90 days; 242 institutions reported holding it in 13F filings for Q2 2026, worth $896.5M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Sixth Street Specialty Lending, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 247
- +7 vs. Q2 2025
- Shares held
- 48.7M
- +23.1K (0.0%) vs. Q2 2025
- Total value
- $1.11B
- −$46.5M (−4.0%) vs. Q2 2025
- New holders
- 35
- 94 more added
- Sold out
- 28
- 65 more reduced
5 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TSLX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 242 | $896.5M |
| Q1 2026 | 260 | $955.4M |
| Q4 2025 | 258 | $1.09B |
| Q3 2025 | 247 | $1.11B |
| Q2 2025 | 245 | $1.16B |
| Q1 2025 | 236 | $1.07B |
| Q4 2024 | 223 | $963.5M |
| Q3 2024 | 202 | $904.9M |
| Q2 2024 | 224 | $962.2M |
| Q1 2024 | 220 | $936.0M |
| Q4 2023 | 223 | $889.5M |
| Q3 2023 | 205 | $806.6M |
| Q2 2023 | 202 | $705.0M |
| Q1 2023 | 195 | $621.2M |
| Q4 2022 | 196 | $643.2M |
| Q3 2022 | 175 | $601.1M |
| Q2 2022 | 180 | $655.5M |
| Q1 2022 | 171 | $825.9M |
| Q4 2021 | 168 | $855.4M |
| Q3 2021 | 159 | $813.5M |
| Q2 2021 | 158 | $808.3M |
| Q1 2021 | 159 | $758.6M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Sixth Street Specialty Lending, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Advisors Asset Management, Inc. | 228,754 | $5.23M | 0.09% | +22,677+11.0% | Added |
| Manufacturers Life Insurance Company, The | 230,586 | $5.27M | 0.00% | 00.0% | Unchanged |
| Confluence Investment Management LLC | 233,908 | $5.35M | 0.08% | −54,158−18.8% | Reduced |
| First National Trust Co | 247,436 | $5.66M | 0.19% | +32,666+15.2% | Added |
| Janney Montgomery Scott LLC | 251,052 | $5.74M | 0.01% | −13,775−5.2% | Reduced |
| Ameriprise Financial Inc | 259,298 | $5.93M | 0.00% | +43,648+20.2% | Added |
| Royal Bank of Canada | 286,451 | $6.55M | 0.00% | +144,974+102.5% | Added |
| Cresset Asset Management, LLC | 303,638 | $6.94M | 0.03% | +1,526+0.5% | Added |
| Goldman Sachs Group Inc | 304,531 | $6.96M | 0.00% | −42,963−12.4% | Reduced |
| We Are One Seven, LLC | 398,278 | $9.10M | 0.21% | −29,562−6.9% | Reduced |
| Cerity Partners LLC | 409,968 | $9.37M | 0.02% | −12,666−3.0% | Reduced |
| Bank of Montreal | 439,832 | $10.1M | 0.00% | +115,636+35.7% | Added |
| Neuberger Berman Group LLC | 462,426 | $10.6M | 0.01% | −132,603−22.3% | Reduced |
| Gilman Hill Asset Management, LLC | 474,321 | $10.8M | 1.70% | +9,080+2.0% | Added |
| Columbus Macro, LLC | 496,810 | $11.4M | 1.29% | +59,249+13.5% | Added |
| Franklin Resources Inc | 546,347 | $12.5M | 0.00% | +60,929+12.6% | Added |
| Two Sigma Investments, LP | 547,068 | $12.5M | 0.02% | +34,321+6.7% | Added |
| Cetera Investment Advisers | 557,946 | $12.8M | 0.01% | +63,536+12.9% | Added |
| Tectonic Advisors LLC | 558,938 | $12.8M | 0.70% | +558,938 | New |
| Legal & General Group Plc | 573,774 | $13.1M | 0.00% | −49,000−7.9% | Reduced |
| Envestnet Asset Management Inc | 588,967 | $13.5M | 0.00% | +50,567+9.4% | Added |
| Stifel Financial Corp | 612,527 | $14.0M | 0.01% | −50,585−7.6% | Reduced |
| Melia Wealth LLC | 622,898 | $14.2M | 6.23% | +7,982+1.3% | Added |
| SCS Capital Management LLC | 636,338 | $14.5M | 0.16% | +13,816+2.2% | Added |
| Two Sigma Advisers, LP | 656,289 | $15.0M | 0.03% | −22,597−3.3% | Reduced |
| LPL Financial LLC | 661,913 | $15.1M | 0.00% | +52,686+8.6% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 662,896 | $15.2M | 0.01% | +135,789+25.8% | Added |
| Bank of America Corp | 692,287 | $15.8M | 0.00% | +116,855+20.3% | Added |
| Advisors Capital Management, LLC | 746,726 | $17.1M | 0.21% | +28,388+4.0% | Added |
| Muzinich & Co., Inc. | 746,958 | $17.1M | 6.62% | +138,342+22.7% | Added |
| BlackRock, Inc. | 811,430 | $18.5M | 0.00% | +115,425+16.6% | Added |
| Callodine Capital Management, LP | 871,433 | $19.9M | 1.75% | −193,391−18.2% | Reduced |
| Raymond James Financial Inc | 872,139 | $19.9M | 0.01% | +43,610+5.3% | Added |
| LSV Asset Management | 972,712 | $22.2M | 0.05% | −82,850−7.8% | Reduced |
| JPMorgan Chase & Co | 993,735 | $22.7M | 0.00% | +50,946+5.4% | Added |
| Wells Fargo & Company | 1,224,946 | $28.0M | 0.01% | −16,093−1.3% | Reduced |
| UBS Group AG | 1,316,597 | $30.1M | 0.01% | +130,586+11.0% | Added |
| Ares Management LLC | 1,394,779 | $31.9M | 1.46% | −7,910−0.6% | Reduced |
| Allen Investment Management LLC | 1,558,667 | $35.6M | 0.40% | +1,541+0.1% | Added |
| Morgan Stanley | 2,004,037 | $45.8M | 0.00% | +131,329+7.0% | Added |
| STRS Ohio | 2,104,173 | $48.1M | 0.18% | −1,072,433−33.8% | Reduced |
| Sound Income Strategies, LLC | 2,402,407 | $50.6M | 2.76% | −3,889−0.2% | Reduced |
| Progeny 3, Inc. | 2,476,398 | $56.6M | 2.92% | 00.0% | Unchanged |
| Burgundy Asset Management Ltd. | 2,362,088 | $57.8M | 0.54% | −16,880−0.7% | Reduced |
| Van Eck Associates Corp | 2,529,187 | $57.8M | 0.05% | +385,398+18.0% | Added |
| Sixth Street Partners Management Company, L.P. | 2,714,226 | $62.0M | 5.33% | 00.0% | Unchanged |
| Union Bancaire Privee, UBP SA | 19,319 | – | – | 00.0% | Unchanged |
| 1832 Asset Management L.P. | 0 | $0 | 0.00% | −395,347−100.0% | Sold out |
| LGT Capital Partners Ltd. | 0 | $0 | 0.00% | −336,500−100.0% | Sold out |
| Round Rock Advisors, LLC | 0 | $0 | 0.00% | −281,184−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −189,491−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −168,058−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −74,279−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −52,974−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −51,926−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −32,266−100.0% | Sold out |
| Bryn Mawr Trust Co | 0 | $0 | 0.00% | −31,070−100.0% | Sold out |
| Bouchey Financial Group Ltd | 0 | $0 | 0.00% | −30,252−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −25,122−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −17,540−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −16,052−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −14,825−100.0% | Sold out |
| Concurrent Investment Advisors, LLC | 0 | $0 | 0.00% | −11,138−100.0% | Sold out |
| Marble Harbor Investment Counsel, LLC | 0 | $0 | 0.00% | −10,210−100.0% | Sold out |
| Whittier Trust Co of Nevada Inc | 0 | $0 | 0.00% | −9,575−100.0% | Sold out |
| Stableford Capital II LLC | 0 | $0 | 0.00% | −8,500−100.0% | Sold out |
| LexAurum Advisors, LLC | 0 | $0 | 0.00% | −8,454−100.0% | Sold out |
| Security National Bank | 0 | $0 | 0.00% | −3,361−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −1,770−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −1,297−100.0% | Sold out |
| Beacon Capital Management, LLC | 0 | $0 | 0.00% | −1,204−100.0% | Sold out |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Mid-American Wealth Advisory Group, Inc. | 0 | $0 | 0.00% | −189−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −83−100.0% | Sold out |
| Danske Bank A/S | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Wambolt & Associates, LLC | – | – | – | – | Not filed |
| Northeast Financial Consultants Inc | – | – | – | – | Not filed |
| Atria Wealth Solutions, Inc. | – | – | – | – | Not filed |
| Atlas Capital Advisors LLC | – | – | – | – | Not filed |
| First Horizon Advisors, Inc. | – | – | – | – | Not filed |