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, Q4 2025
Institutional positions in Sixth Street Specialty Lending, Inc. as of Dec 31, 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
- 258
- +15 vs. Q3 2025
- Shares held
- 50.3M
- +3.99M (+8.6%) vs. Q3 2025
- Total value
- $1.09B
- +$40.1M (+3.8%) vs. Q3 2025
- New holders
- 38
- 103 more added
- Sold out
- 23
- 67 more reduced
4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Sixth Street Specialty Lending, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 155,887 | $3.39M | 0.00% | −130,564−45.6% | Reduced |
| Commonwealth Equity Services, LLC | 156,787 | $3.41M | 0.00% | +27,192+21.0% | Added |
| Truvestments Capital LLC | 164,193 | $3.57M | 0.65% | −5,199−3.1% | Reduced |
| Great West Life Assurance Co | 164,256 | $3.57M | 0.01% | +5,543+3.5% | Added |
| Clayton Partners LLC | 178,121 | $3.87M | 2.79% | +40,999+29.9% | Added |
| Parkwood LLC | 184,819 | $4.01M | 0.34% | 00.0% | Unchanged |
| Stratos Wealth Advisors, LLC | 190,094 | $4.13M | 0.20% | +190,094 | New |
| D.A. Davidson & Co. | 191,676 | $4.16M | 0.03% | +9,085+5.0% | Added |
| RMR Capital Management, LLC | 197,718 | $4.29M | 3.10% | −16,531−7.7% | Reduced |
| Benjamin Edwards Inc | 215,726 | $4.69M | 0.05% | +1,037+0.5% | Added |
| Advisors Asset Management, Inc. | 216,004 | $4.69M | 0.08% | −12,750−5.6% | Reduced |
| Ameriprise Financial Inc | 221,438 | $4.81M | 0.00% | −37,860−14.6% | Reduced |
| Janney Montgomery Scott LLC | 224,913 | $4.88M | 0.01% | −26,139−10.4% | Reduced |
| Confluence Investment Management LLC | 225,778 | $4.90M | 0.07% | −8,130−3.5% | Reduced |
| Manufacturers Life Insurance Company, The | 230,749 | $5.01M | 0.00% | +163+0.1% | Added |
| First National Trust Co | 247,436 | $5.37M | 0.18% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 269,578 | $5.86M | 0.01% | +197,508+274.1% | Added |
| Altshuler Shaham Ltd | 301,460 | $6.55M | 0.10% | +301,460 | New |
| We Are One Seven, LLC | 366,017 | $7.95M | 0.16% | −32,261−8.1% | Reduced |
| Two Sigma Investments, LP | 370,223 | $8.04M | 0.01% | −176,845−32.3% | Reduced |
| Cerity Partners LLC | 384,767 | $8.36M | 0.01% | −25,201−6.1% | Reduced |
| Two Sigma Advisers, LP | 393,298 | $8.54M | 0.02% | −262,991−40.1% | Reduced |
| Cresset Asset Management, LLC | 404,639 | $8.79M | 0.04% | +101,001+33.3% | Added |
| Omers Administration Corp | 469,109 | $10.2M | 0.07% | +286,724+157.2% | Added |
| Gilman Hill Asset Management, LLC | 474,356 | $10.3M | 1.62% | +350.0% | Added |
| Neuberger Berman Group LLC | 526,234 | $11.4M | 0.01% | +63,808+13.8% | Added |
| Columbus Macro, LLC | 547,164 | $11.9M | 1.30% | +50,354+10.1% | Added |
| Franklin Resources Inc | 571,158 | $12.4M | 0.00% | +24,811+4.5% | Added |
| Cetera Investment Advisers | 593,881 | $12.9M | 0.01% | +35,935+6.4% | Added |
| Melia Wealth LLC | 617,204 | $13.4M | 6.20% | −5,694−0.9% | Reduced |
| Tectonic Advisors LLC | 617,476 | $13.4M | 0.71% | +58,538+10.5% | Added |
| Goldman Sachs Group Inc | 624,196 | $13.6M | 0.00% | +319,665+105.0% | Added |
| Stifel Financial Corp | 626,976 | $13.6M | 0.01% | +14,449+2.4% | Added |
| Envestnet Asset Management Inc | 633,157 | $13.8M | 0.00% | +44,190+7.5% | Added |
| SCS Capital Management LLC | 649,887 | $14.1M | 0.15% | +13,549+2.1% | Added |
| Legal & General Group Plc | 665,352 | $14.5M | 0.00% | +91,578+16.0% | Added |
| LPL Financial LLC | 693,805 | $15.1M | 0.00% | +31,892+4.8% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 741,125 | $16.1M | 0.01% | +78,229+11.8% | Added |
| Bank of America Corp | 752,631 | $16.3M | 0.00% | +60,344+8.7% | Added |
| Advisors Capital Management, LLC | 767,489 | $16.7M | 0.20% | +20,763+2.8% | Added |
| LSV Asset Management | 791,212 | $17.2M | 0.04% | −181,500−18.7% | Reduced |
| BlackRock, Inc. | 808,428 | $17.6M | 0.00% | −3,002−0.4% | Reduced |
| Raymond James Financial Inc | 896,117 | $19.5M | 0.01% | +23,978+2.7% | Added |
| JPMorgan Chase & Co | 934,233 | $20.3M | 0.00% | −59,502−6.0% | Reduced |
| Muzinich & Co., Inc. | 992,898 | $21.6M | 6.78% | +245,940+32.9% | Added |
| Callodine Capital Management, LP | 1,101,992 | $23.9M | 1.92% | +230,559+26.5% | Added |
| Wells Fargo & Company | 1,270,816 | $27.6M | 0.01% | +45,870+3.7% | Added |
| Ares Management LLC | 1,354,779 | $29.4M | 1.68% | −40,000−2.9% | Reduced |
| Allen Investment Management LLC | 1,560,247 | $33.9M | 0.38% | +1,580+0.1% | Added |
| UBS Group AG | 1,616,161 | $35.1M | 0.01% | +299,564+22.8% | Added |
| STRS Ohio | 2,154,159 | $46.8M | 0.17% | +49,986+2.4% | Added |
| Bank of Montreal | 2,284,920 | $49.6M | 0.02% | +1,845,088+419.5% | Added |
| Van Eck Associates Corp | 2,342,047 | $50.9M | 0.04% | −187,140−7.4% | Reduced |
| Morgan Stanley | 2,390,628 | $51.9M | 0.00% | +386,591+19.3% | Added |
| Progeny 3, Inc. | 2,476,398 | $53.8M | 2.90% | 00.0% | Unchanged |
| Sound Income Strategies, LLC | 2,511,115 | $56.0M | 2.65% | +108,708+4.5% | Added |
| Sixth Street Partners Management Company, L.P. | 2,714,226 | $59.0M | 6.06% | 00.0% | Unchanged |
| Union Bancaire Privee, UBP SA | 15,014 | – | – | −4,305−22.3% | Reduced |
| HRT Financial LP | 0 | $0 | 0.00% | −162,375−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −93,900−100.0% | Sold out |
| Toroso Investments, LLC | 0 | $0 | 0.00% | −57,307−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −39,941−100.0% | Sold out |
| Redhawk Wealth Advisors, Inc. | 0 | $0 | 0.00% | −39,519−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −34,360−100.0% | Sold out |
| Bramshill Investments, LLC | 0 | $0 | 0.00% | −31,875−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −23,806−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −19,056−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −18,462−100.0% | Sold out |
| Mercer Global Advisors Inc | 0 | $0 | 0.00% | −13,621−100.0% | Sold out |
| Grimes & Company, Inc. | 0 | $0 | 0.00% | −11,924−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −10,952−100.0% | Sold out |
| Advisory Research Inc | 0 | $0 | 0.00% | −10,338−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −10,268−100.0% | Sold out |
| Robertson Stephens Wealth Management, LLC | 0 | $0 | 0.00% | −9,700−100.0% | Sold out |
| Empowered Funds, LLC | 0 | $0 | 0.00% | −9,108−100.0% | Sold out |
| Csenge Advisory Group | 0 | $0 | 0.00% | −9,000−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −4,764−100.0% | Sold out |
| Future Financial Wealth Managment LLC | 0 | $0 | 0.00% | −4,200−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −3,261−100.0% | Sold out |
| Alerus Financial NA | 0 | $0 | 0.00% | −325−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −121−100.0% | Sold out |
| Burgundy Asset Management Ltd. | – | – | – | – | Not filed |
| Wetherby Asset Management Inc | – | – | – | – | Not filed |
| AllSquare Wealth Management LLC | – | – | – | – | Not filed |
| Guerra Advisors Inc | – | – | – | – | Not filed |