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 |
|---|---|---|---|---|---|
| Lido Advisors, LLC | 41,666 | $952.5K | 0.00% | −11,330−21.4% | Reduced |
| Buckingham Strategic Partners | 44,663 | $937.5K | 0.01% | +28,367+174.1% | Added |
| Savvy Advisors, Inc. | 40,390 | $923.3K | 0.04% | +5,252+14.9% | Added |
| Park Circle Co | 40,145 | $917.7K | 0.80% | −21,855−35.3% | Reduced |
| Essex Financial Services, Inc. | 39,962 | $913.5K | 0.05% | −1,085−2.6% | Reduced |
| Marshall Wace, LLP | 39,941 | $913.1K | 0.00% | −35,870−47.3% | Reduced |
| Evoke Wealth, LLC | 39,858 | $911.2K | 0.02% | −10.0% | Reduced |
| Mariner, LLC | 39,787 | $909.5K | 0.00% | +1,158+3.0% | Added |
| Dakota Wealth Management | 39,640 | $906.2K | 0.02% | +420+1.1% | Added |
| Redhawk Wealth Advisors, Inc. | 39,519 | $903.4K | 0.10% | +39,519 | New |
| Brown Advisory Inc | 38,999 | $891.5K | 0.00% | 00.0% | Unchanged |
| Barnett & Company, Inc. | 38,750 | $885.8K | 0.68% | +2,000+5.4% | Added |
| Ehrenkranz Partners L.P. | 37,474 | $856.7K | 0.75% | +37,474 | New |
| Diversify Advisory Services, LLC | 36,185 | $819.2K | 0.03% | +3,666+11.3% | Added |
| Texas Yale Capital Corp. | 35,500 | $811.5K | 0.03% | 00.0% | Unchanged |
| Nations Financial Group Inc, | 35,311 | $807.2K | 0.05% | −197−0.6% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 35,281 | $806.5K | 0.03% | −28,630−44.8% | Reduced |
| Susquehanna International Group, LLP | 34,360 | $785.5K | 0.00% | +19,634+133.3% | Added |
| Invesco Ltd. | 34,158 | $780.9K | 0.00% | +3,530+11.5% | Added |
| Kestra Advisory Services, LLC | 34,014 | $777.6K | 0.00% | −5,010−12.8% | Reduced |
| Aquatic Capital Management LLC | 32,824 | $750.4K | 0.01% | +32,824 | New |
| Bramshill Investments, LLC | 31,875 | $728.7K | 0.05% | −777−2.4% | Reduced |
| Ellsworth Advisors, LLC | 30,938 | $676.9K | 0.14% | +1,123+3.8% | Added |
| Ethos Financial Group, LLC | 29,144 | $666.2K | 0.05% | −667−2.2% | Reduced |
| Romano Brothers and Company | 29,700 | $655.4K | 0.07% | +4,500+17.9% | Added |
| Sargent Investment Group, LLC | 28,400 | $649.2K | 0.09% | 00.0% | Unchanged |
| Platform Technology Partners | 27,945 | $638.8K | 0.15% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 26,990 | $617.0K | 0.18% | −2,312−7.9% | Reduced |
| Guggenheim Capital LLC | 26,857 | $614.0K | 0.00% | −114−0.4% | Reduced |
| Natixis | 25,249 | $577.2K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 25,140 | $574.7K | 0.00% | +27+0.1% | Added |
| Merrion Investment Management Co, LLC | 25,000 | $571.5K | 0.33% | 00.0% | Unchanged |
| Sage Investment Counsel LLC | 24,777 | $566.4K | 0.63% | −1,500−5.7% | Reduced |
| Family Wealth Partners, LLC | 24,265 | $554.7K | 0.21% | +7,968+48.9% | Added |
| Quadrature Capital Ltd | 23,806 | $544.2K | 0.01% | +23,806 | New |
| Magnus Financial Group LLC | 23,775 | $543.5K | 0.04% | +11,249+89.8% | Added |
| Chicago Partners Investment Group LLC | 23,369 | $534.2K | 0.01% | +505+2.2% | Added |
| Investor's Fiduciary Advisor Network, LLC | 22,790 | $520.0K | 0.18% | +22,790 | New |
| Silver Oak Securities, Inc | 22,688 | $518.6K | 0.04% | +2,733+13.7% | Added |
| Whalerock Point Partners, LLC | 21,729 | $496.7K | 0.10% | +8,529+64.6% | Added |
| Generali Investments CEE, investicni spolecnost, a.s. | 21,235 | $485.4K | 0.04% | −2,849−11.8% | Reduced |
| IFG Advisory, LLC | 21,159 | $483.7K | 0.02% | +551+2.7% | Added |
| Mirador Capital Partners LP | 21,103 | $482.4K | 0.07% | −817−3.7% | Reduced |
| Private Advisor Group, LLC | 21,018 | $480.5K | 0.00% | −850−3.9% | Reduced |
| Price T Rowe Associates Inc | 20,937 | $479.0K | 0.00% | +20,937 | New |
| ProShare Advisors LLC | 20,420 | $466.8K | 0.00% | +1,261+6.6% | Added |
| Delphi Financial Group, Inc. | 20,041 | $458.1K | 0.26% | 00.0% | Unchanged |
| Wiley Bros.-Aintree Capital, LLC | 19,605 | $448.2K | 0.00% | +19,605 | New |
| London & Capital Asset Management Ltd | 19,400 | $443.5K | 0.03% | 00.0% | Unchanged |
| Klein Pavlis & Peasley Financial, Inc. | 19,145 | $437.7K | 0.27% | +19,145 | New |
| Capstone Investment Advisors, LLC | 19,056 | $435.6K | 0.00% | +19,056 | New |
| Monument Capital Management | 18,582 | $424.8K | 0.11% | +18,582 | New |
| Sanctuary Advisors, LLC | 18,558 | $424.2K | 0.00% | −4,977−21.1% | Reduced |
| Integrated Wealth Concepts LLC | 18,462 | $422.0K | 0.00% | +123+0.7% | Added |
| Eagle Global Advisors LLC | 18,295 | $418.2K | 0.02% | +4,145+29.3% | Added |
| Parallel Advisors, LLC | 18,041 | $412.4K | 0.01% | +29+0.2% | Added |
| Clearstead Advisors, LLC | 18,000 | $411.5K | 0.01% | 00.0% | Unchanged |
| Evergreen Capital Management LLC | 16,513 | $377.5K | 0.01% | 00.0% | Unchanged |
| Heritage Trust Co | 15,889 | $363.2K | 0.04% | +309+2.0% | Added |
| Bank of New York Mellon Corp | 15,609 | $356.8K | 0.00% | +3,014+23.9% | Added |
| Mallini Complete Financial Planning LLC | 15,341 | $350.7K | 0.29% | +115+0.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 14,759 | $337.4K | 0.00% | −291−1.9% | Reduced |
| Principal Street Partners, LLC | 14,570 | $333.1K | 0.05% | 00.0% | Unchanged |
| Catalytic Wealth RIA, LLC | 14,000 | $320.0K | 0.01% | +14,000 | New |
| Inspirion Wealth Advisors, LLC | 15,426 | $316.7K | 0.04% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 13,621 | $311.4K | 0.00% | +4,888+56.0% | Added |
| Worth Asset Management, LLC | 12,656 | $289.3K | 0.13% | −1,666−11.6% | Reduced |
| Westmount Partners, LLC | 13,030 | $288.6K | 0.07% | 00.0% | Unchanged |
| GWM Advisors LLC | 12,493 | $285.6K | 0.00% | +10,821+647.2% | Added |
| Grimes & Company, Inc. | 11,924 | $272.6K | 0.01% | −237−1.9% | Reduced |
| Caxton Associates LLP | 11,730 | $268.1K | 0.01% | +11,730 | New |
| Principle Wealth Partners LLC | 11,701 | $267.5K | 0.02% | 00.0% | Unchanged |
| Core Wealth Partners LLC | 11,668 | $266.7K | 0.12% | 00.0% | Unchanged |
| Wetherby Asset Management Inc | 11,514 | $263.2K | 0.01% | 00.0% | Unchanged |
| Oppenheimer & Co Inc | 11,297 | $258.2K | 0.00% | +11,297 | New |
| Brevan Howard Capital Management LP | 10,952 | $250.4K | 0.00% | +10,952 | New |
| Steward Partners Investment Advisory, LLC | 10,861 | $248.3K | 0.00% | −8,641−44.3% | Reduced |
| Nomura Asset Management Co Ltd | 10,789 | $246.6K | 0.00% | +4,201+63.8% | Added |
| Advisory Research Inc | 10,338 | $236.3K | 0.03% | −226−2.1% | Reduced |
| Virtu Financial LLC | 10,268 | $235.0K | 0.01% | +10,268 | New |
| Glenview Trust Co | 9,700 | $221.7K | 0.00% | 00.0% | Unchanged |
| Robertson Stephens Wealth Management, LLC | 9,700 | $221.7K | 0.01% | 00.0% | Unchanged |
| Stratos Wealth Partners, LTD. | 9,515 | $217.5K | 0.00% | +31+0.3% | Added |
| AE Wealth Management LLC | 9,459 | $216.2K | 0.00% | +98+1.0% | Added |
| Maia Wealth LLC | 10,000 | $209.9K | 0.04% | +10,000 | New |
| Empowered Funds, LLC | 9,108 | $208.2K | 0.00% | +9,108 | New |
| Register Financial Advisors LLC | 9,083 | $207.6K | 0.08% | +1,418+18.5% | Added |
| Pasadena Private Wealth, LLC | 9,000 | $205.7K | 0.03% | −1,090−10.8% | Reduced |
| Csenge Advisory Group | 9,000 | $205.7K | 0.01% | +9,000 | New |
| The PNC Financial Services Group, Inc. | 7,341 | $167.8K | 0.00% | 00.0% | Unchanged |
| EMC Capital Management | 6,120 | $140.0K | 0.07% | 00.0% | Unchanged |
| Vaughan Nelson Investment Management, L.P. | 5,350 | $122.3K | 0.00% | 00.0% | Unchanged |
| Annis Gardner Whiting Capital Advisors, LLC | 5,235 | $119.7K | 0.02% | 00.0% | Unchanged |
| Comerica Bank | 5,096 | $116.5K | 0.00% | −4,184−45.1% | Reduced |
| Frazier Financial Advisors, LLC | 4,814 | $110.0K | 0.07% | 00.0% | Unchanged |
| Simplex Trading, LLC | 4,764 | $108.0K | 0.00% | +4,764 | New |
| Farther Finance Advisors, LLC | 4,700 | $107.4K | 0.00% | +4,033+604.6% | Added |
| Signaturefd, LLC | 4,564 | $104.3K | 0.00% | −95−2.0% | Reduced |
| State of Alaska, Department of Revenue | 4,289 | $98.0K | 0.00% | +4,289 | New |
| Future Financial Wealth Managment LLC | 4,200 | $96.0K | 0.06% | 00.0% | Unchanged |