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, Q2 2025
Institutional positions in Sixth Street Specialty Lending, Inc. as of Jun 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
- 245
- +10 vs. Q1 2025
- Shares held
- 48.9M
- +1.17M (+2.5%) vs. Q1 2025
- Total value
- $1.16B
- +$95.9M (+9.0%) vs. Q1 2025
- New holders
- 31
- 98 more added
- Sold out
- 21
- 65 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Sixth Street Specialty Lending, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rossby Financial, LCC | 2,983 | $71.0K | 0.03% | +3+0.1% | Added |
| Global Retirement Partners, LLC | 2,825 | $67.3K | 0.00% | +2,825 | New |
| Essential Partners LLC | 2,200 | $52.4K | 0.02% | +2,200 | New |
| CIBC Private Wealth Group, LLC | 2,144 | $51.0K | 0.00% | 00.0% | Unchanged |
| MTM Investment Management, LLC | 2,040 | $48.6K | 0.02% | +2,040 | New |
| AdvisorNet Financial, Inc | 2,000 | $47.6K | 0.00% | +200+11.1% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 1,919 | $46.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,770 | $42.1K | 0.00% | −809−31.4% | Reduced |
| Geneos Wealth Management Inc. | 1,746 | $41.6K | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 1,672 | $39.8K | 0.00% | 00.0% | Unchanged |
| Trust Co of Vermont | 1,584 | $37.7K | 0.00% | −250−13.6% | Reduced |
| Acadian Asset Management LLC | 1,297 | $30.0K | 0.00% | −137−9.6% | Reduced |
| Beacon Capital Management, LLC | 1,204 | $28.7K | 0.00% | +27+2.3% | Added |
| EverSource Wealth Advisors, LLC | 1,061 | $25.3K | 0.00% | 00.0% | Unchanged |
| First Community Trust NA | 1,040 | $24.8K | 0.02% | 00.0% | Unchanged |
| Huntington National Bank | 1,001 | $23.8K | 0.00% | 00.0% | Unchanged |
| Community Bank, N.A. | 1,000 | $23.8K | 0.00% | 00.0% | Unchanged |
| Bartlett & Co. Wealth Management LLC | 700 | $16.7K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 667 | $15.9K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 604 | $14.4K | 0.00% | 00.0% | Unchanged |
| Private Trust Co NA | 600 | $14.3K | 0.00% | 00.0% | Unchanged |
| AllSquare Wealth Management LLC | 500 | $11.9K | 0.01% | 00.0% | Unchanged |
| Greykasell Wealth Strategies, Inc. | 497 | $11.8K | 0.01% | −328−39.8% | Reduced |
| Valley National Advisers Inc | 500 | $11.0K | 0.00% | +500 | New |
| Blume Capital Management, Inc. | 450 | $10.7K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 334 | $7.95K | 0.00% | +314+1,570.0% | Added |
| Westside Investment Management, Inc. | 286 | $6.80K | 0.00% | +286 | New |
| Delta Asset Management LLC | 250 | $5.95K | 0.00% | 00.0% | Unchanged |
| WealthCollab, LLC | 225 | $5.36K | 0.00% | −173−43.5% | Reduced |
| Harbor Investment Advisory, LLC | 219 | $5.22K | 0.00% | +5+2.3% | Added |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 200 | $4.76K | 0.00% | 00.0% | Unchanged |
| Mid-American Wealth Advisory Group, Inc. | 189 | $4.50K | 0.00% | +189 | New |
| Harbour Investments, Inc. | 178 | $4.24K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 161 | $3.83K | 0.00% | +3+1.9% | Added |
| Glen Eagle Advisors, LLC | 100 | $2.38K | 0.00% | 00.0% | Unchanged |
| Provenance Wealth Advisors, LLC | 100 | $2.38K | 0.00% | 00.0% | Unchanged |
| Brown Brothers Harriman & Co | 100 | $2.38K | 0.00% | +100 | New |
| Russell Investments Group, Ltd. | 94 | $2.23K | 0.00% | −126−57.3% | Reduced |
| Northwestern Mutual Wealth Management Co | 83 | $1.98K | 0.00% | −384−82.2% | Reduced |
| Hager Investment Management Services, LLC | 55 | $1.31K | 0.00% | +1+1.9% | Added |
| SJS Investment Consulting Inc. | 43 | $1.02K | 0.00% | +43 | New |
| GAMMA Investing LLC | 37 | $881 | 0.00% | 00.0% | Unchanged |
| FMR LLC | 34 | $810 | 0.00% | 00.0% | Unchanged |
| Danske Bank A/S | 1 | $24 | 0.00% | 00.0% | Unchanged |
| Union Bancaire Privee, UBP SA | 19,319 | – | – | +935+5.1% | Added |
| Baillie Gifford & Co | 0 | $0 | 0.00% | −373,254−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −173,243−100.0% | Sold out |
| Financial Advocates Investment Management | 0 | $0 | 0.00% | −140,390−100.0% | Sold out |
| FIL Ltd | 0 | $0 | 0.00% | −78,956−100.0% | Sold out |
| Alberta Investment Management Corp | 0 | $0 | 0.00% | −60,400−100.0% | Sold out |
| FJ Capital Management LLC | 0 | $0 | 0.00% | −35,944−100.0% | Sold out |
| Barclays PLC | 0 | $0 | 0.00% | −29,074−100.0% | Sold out |
| Rathbone Brothers plc | 0 | $0 | 0.00% | −24,202−100.0% | Sold out |
| Hamilton Capital Partners Inc. | 0 | $0 | 0.00% | −17,340−100.0% | Sold out |
| Lansforsakringar Fondforvaltning AB (publ) | 0 | $0 | 0.00% | −16,161−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −15,600−100.0% | Sold out |
| TrueMark Investments, LLC | 0 | $0 | 0.00% | −13,535−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −9,368−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −5,761−100.0% | Sold out |
| Boston Private Wealth LLC | 0 | $0 | 0.00% | −4,787−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −2,258−100.0% | Sold out |
| Ameriflex Group, Inc. | 0 | $0 | 0.00% | −1,205−100.0% | Sold out |
| Peoples Bank | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −426−100.0% | Sold out |
| Cullen/Frost Bankers, Inc. | 0 | $0 | 0.00% | −285−100.0% | Sold out |
| SOA Wealth Advisors, LLC. | 0 | $0 | 0.00% | −43−100.0% | Sold out |
| Lindbrook Capital, LLC | – | – | – | – | Not filed |