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.
Q4 2025 vs. Q3 2025
How the institutions holding Sixth Street Specialty Lending, Inc. changed between Q3 2025 and Q4 2025.
All holders in Q4 2025All holders in Q3 2025
| Measure | Q3 2025 | Of which not filed for Q4 2025 | Q4 2025 | Change |
|---|---|---|---|---|
| Holders | 247 | 4 | 258 | +15 |
| Shares | 48.7M | 2.37M | 50.3M | +3.99M (+8.6%) |
| Value | $1.11B | $58.0M | $1.09B | +$40.1M (+3.8%) |
4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.
New holders (38)
Institutions that held Sixth Street Specialty Lending, Inc. at the end of Q4 2025 but not at the end of Q3 2025.
Sold out (23)
Institutions that held Sixth Street Specialty Lending, Inc. at the end of Q3 2025 and filed for Q4 2025 without it.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| HRT Financial LP | 162,375 | $3.71M |
| D. E. Shaw & Co., Inc. | 93,900 | $2.15M |
| Toroso Investments, LLC | 57,307 | $1.31M |
| Marshall Wace, LLP | 39,941 | $913.1K |
| Redhawk Wealth Advisors, Inc. | 39,519 | $903.4K |
| Susquehanna International Group, LLP | 34,360 | $785.5K |
| Bramshill Investments, LLC | 31,875 | $728.7K |
| Quadrature Capital Ltd | 23,806 | $544.2K |
| Capstone Investment Advisors, LLC | 19,056 | $435.6K |
| Integrated Wealth Concepts LLC | 18,462 | $422.0K |
| Mercer Global Advisors Inc | 13,621 | $311.4K |
| Grimes & Company, Inc. | 11,924 | $272.6K |
| Brevan Howard Capital Management LP | 10,952 | $250.4K |
| Advisory Research Inc | 10,338 | $236.3K |
| Virtu Financial LLC | 10,268 | $235.0K |
| Robertson Stephens Wealth Management, LLC | 9,700 | $221.7K |
| Empowered Funds, LLC | 9,108 | $208.2K |
| Csenge Advisory Group | 9,000 | $205.7K |
| Simplex Trading, LLC | 4,764 | $108.0K |
| Future Financial Wealth Managment LLC | 4,200 | $96.0K |
| Advisory Services Network, LLC | 3,261 | $74.5K |
| Alerus Financial NA | 325 | $7.43K |
| Wealthspire Advisors, LLC | 121 | $2.77K |
Not filed for Q4 2025 yet (4)
Institutions that held Sixth Street Specialty Lending, Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| Burgundy Asset Management Ltd. | 2,362,088 | $57.8M |
| Wetherby Asset Management Inc | 11,514 | $263.2K |
| AllSquare Wealth Management LLC | 500 | $11.4K |
| Guerra Advisors Inc | 0 | $9 |