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 |
|---|---|---|---|---|---|
| Danske Bank A/S | 1 | $24 | 0.00% | 00.0% | Unchanged |
| FMR LLC | 34 | $810 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 37 | $881 | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 43 | $1.02K | 0.00% | +43 | New |
| Hager Investment Management Services, LLC | 55 | $1.31K | 0.00% | +1+1.9% | Added |
| Northwestern Mutual Wealth Management Co | 83 | $1.98K | 0.00% | −384−82.2% | Reduced |
| Russell Investments Group, Ltd. | 94 | $2.23K | 0.00% | −126−57.3% | Reduced |
| 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 |
| Larson Financial Group LLC | 161 | $3.83K | 0.00% | +3+1.9% | Added |
| Harbour Investments, Inc. | 178 | $4.24K | 0.00% | 00.0% | Unchanged |
| Mid-American Wealth Advisory Group, Inc. | 189 | $4.50K | 0.00% | +189 | New |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 200 | $4.76K | 0.00% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 219 | $5.22K | 0.00% | +5+2.3% | Added |
| WealthCollab, LLC | 225 | $5.36K | 0.00% | −173−43.5% | Reduced |
| Delta Asset Management LLC | 250 | $5.95K | 0.00% | 00.0% | Unchanged |
| Westside Investment Management, Inc. | 286 | $6.80K | 0.00% | +286 | New |
| Allworth Financial LP | 334 | $7.95K | 0.00% | +314+1,570.0% | Added |
| Blume Capital Management, Inc. | 450 | $10.7K | 0.00% | 00.0% | Unchanged |
| Valley National Advisers Inc | 500 | $11.0K | 0.00% | +500 | New |
| Greykasell Wealth Strategies, Inc. | 497 | $11.8K | 0.01% | −328−39.8% | Reduced |
| AllSquare Wealth Management LLC | 500 | $11.9K | 0.01% | 00.0% | Unchanged |
| Private Trust Co NA | 600 | $14.3K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 604 | $14.4K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 667 | $15.9K | 0.00% | 00.0% | Unchanged |
| Bartlett & Co. Wealth Management LLC | 700 | $16.7K | 0.00% | 00.0% | Unchanged |
| Community Bank, N.A. | 1,000 | $23.8K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 1,001 | $23.8K | 0.00% | 00.0% | Unchanged |
| First Community Trust NA | 1,040 | $24.8K | 0.02% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 1,061 | $25.3K | 0.00% | 00.0% | Unchanged |
| Beacon Capital Management, LLC | 1,204 | $28.7K | 0.00% | +27+2.3% | Added |
| Acadian Asset Management LLC | 1,297 | $30.0K | 0.00% | −137−9.6% | Reduced |
| Trust Co of Vermont | 1,584 | $37.7K | 0.00% | −250−13.6% | Reduced |
| GWM Advisors LLC | 1,672 | $39.8K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 1,746 | $41.6K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,770 | $42.1K | 0.00% | −809−31.4% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 1,919 | $46.0K | 0.00% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 2,000 | $47.6K | 0.00% | +200+11.1% | Added |
| MTM Investment Management, LLC | 2,040 | $48.6K | 0.02% | +2,040 | New |
| CIBC Private Wealth Group, LLC | 2,144 | $51.0K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 2,200 | $52.4K | 0.02% | +2,200 | New |
| Global Retirement Partners, LLC | 2,825 | $67.3K | 0.00% | +2,825 | New |
| Rossby Financial, LCC | 2,983 | $71.0K | 0.03% | +3+0.1% | Added |
| Security National Bank | 3,361 | $80.0K | 0.01% | +189+6.0% | Added |
| Redmont Wealth Advisors LLC | 3,607 | $85.9K | 0.13% | −734−16.9% | Reduced |
| Federation des caisses Desjardins du Quebec | 4,000 | $95.2K | 0.00% | 00.0% | Unchanged |
| First Horizon Advisors, Inc. | 4,123 | $98.2K | 0.00% | +1,753+74.0% | Added |
| Future Financial Wealth Managment LLC | 4,200 | $100.0K | 0.07% | 00.0% | Unchanged |
| MAI Capital Management | 4,264 | $101.5K | 0.00% | +1,940+83.5% | Added |
| Signaturefd, LLC | 4,659 | $110.9K | 0.00% | −444−8.7% | Reduced |
| Frazier Financial Advisors, LLC | 4,814 | $114.6K | 0.08% | 00.0% | Unchanged |
| Atlas Capital Advisors LLC | 5,115 | $121.8K | 0.01% | 00.0% | Unchanged |
| Annis Gardner Whiting Capital Advisors, LLC | 5,235 | $124.6K | 0.04% | 00.0% | Unchanged |
| Vaughan Nelson Investment Management, L.P. | 5,350 | $127.4K | 0.00% | 00.0% | Unchanged |
| EMC Capital Management | 6,120 | $146.0K | 0.08% | −627−9.3% | Reduced |
| Nomura Asset Management Co Ltd | 6,588 | $156.9K | 0.00% | +6,588 | New |
| The PNC Financial Services Group, Inc. | 7,341 | $174.8K | 0.00% | 00.0% | Unchanged |
| Register Financial Advisors LLC | 7,665 | $182.5K | 0.08% | +18+0.2% | Added |
| LexAurum Advisors, LLC | 8,454 | $201.3K | 0.03% | +8,454 | New |
| Atria Wealth Solutions, Inc. | 8,570 | $204.1K | 0.00% | +8,570 | New |
| Stableford Capital II LLC | 8,500 | $207.8K | 0.08% | +8,500 | New |
| Mercer Global Advisors Inc | 8,733 | $207.9K | 0.00% | +8,733 | New |
| Comerica Bank | 9,280 | $221.0K | 0.00% | +1,025+12.4% | Added |
| AE Wealth Management LLC | 9,361 | $222.9K | 0.00% | −1,504−13.8% | Reduced |
| Stratos Wealth Partners, LTD. | 9,484 | $225.8K | 0.00% | +30+0.3% | Added |
| Whittier Trust Co of Nevada Inc | 9,575 | $227.9K | 0.01% | 00.0% | Unchanged |
| Robertson Stephens Wealth Management, LLC | 9,700 | $231.0K | 0.01% | 00.0% | Unchanged |
| Glenview Trust Co | 9,700 | $231.0K | 0.00% | +9,700 | New |
| Pasadena Private Wealth, LLC | 10,090 | $240.2K | 0.04% | −1,079−9.7% | Reduced |
| Marble Harbor Investment Counsel, LLC | 10,210 | $243.1K | 0.03% | −1,135−10.0% | Reduced |
| Advisory Research Inc | 10,564 | $251.5K | 0.04% | −166−1.5% | Reduced |
| Concurrent Investment Advisors, LLC | 11,138 | $265.2K | 0.01% | +11,138 | New |
| Wetherby Asset Management Inc | 11,514 | $274.1K | 0.01% | +11,514 | New |
| Core Wealth Partners LLC | 11,668 | $277.8K | 0.14% | 00.0% | Unchanged |
| Principle Wealth Partners LLC | 11,701 | $278.6K | 0.02% | −1,449−11.0% | Reduced |
| Grimes & Company, Inc. | 12,161 | $289.6K | 0.01% | +12,161 | New |
| Magnus Financial Group LLC | 12,526 | $298.2K | 0.03% | −1,880−13.1% | Reduced |
| Bank of New York Mellon Corp | 12,595 | $299.9K | 0.00% | +696+5.8% | Added |
| Westmount Partners, LLC | 13,030 | $310.2K | 0.09% | 00.0% | Unchanged |
| Whalerock Point Partners, LLC | 13,200 | $314.3K | 0.07% | +2,575+24.2% | Added |
| Eagle Global Advisors LLC | 14,150 | $336.9K | 0.01% | 00.0% | Unchanged |
| Worth Asset Management, LLC | 14,322 | $341.0K | 0.17% | +15+0.1% | Added |
| Principal Street Partners, LLC | 14,570 | $346.9K | 0.03% | −710−4.6% | Reduced |
| Susquehanna International Group, LLP | 14,726 | $350.6K | 0.00% | −22,858−60.8% | Reduced |
| Verition Fund Management LLC | 14,825 | $353.0K | 0.00% | +14,825 | New |
| Mirae Asset Global Investments Co., Ltd. | 15,050 | $358.3K | 0.00% | +6,031+66.9% | Added |
| Mallini Complete Financial Planning LLC | 15,226 | $362.4K | 0.46% | +2,198+16.9% | Added |
| Inspirion Wealth Advisors, LLC | 15,426 | $367.3K | 0.05% | 00.0% | Unchanged |
| Heritage Trust Co | 15,580 | $371.0K | 0.04% | +15,580 | New |
| Squarepoint Ops LLC | 16,052 | $382.2K | 0.00% | +3,196+24.9% | Added |
| Buckingham Strategic Partners | 16,296 | $388.0K | 0.01% | +7,320+81.6% | Added |
| Family Wealth Partners, LLC | 16,297 | $388.0K | 0.16% | +7,320+81.5% | Added |
| Evergreen Capital Management LLC | 16,513 | $393.2K | 0.01% | −755−4.4% | Reduced |
| Balyasny Asset Management LLC | 17,540 | $417.6K | 0.00% | +17,540 | New |
| Clearstead Advisors, LLC | 18,000 | $428.6K | 0.01% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 18,012 | $428.9K | 0.01% | −2,696−13.0% | Reduced |
| Integrated Wealth Concepts LLC | 18,339 | $436.6K | 0.00% | +1,800+10.9% | Added |
| ProShare Advisors LLC | 19,159 | $456.2K | 0.00% | −735−3.7% | Reduced |
| London & Capital Asset Management Ltd | 19,400 | $461.9K | 0.04% | 00.0% | Unchanged |