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, Q1 2026
Institutional positions in Sixth Street Specialty Lending, Inc. as of Mar 31, 2026. 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
- 260
- +8 vs. Q4 2025
- Shares held
- 52.1M
- +1.79M (+3.6%) vs. Q4 2025
- Total value
- $955.4M
- −$138.6M (−12.7%) vs. Q4 2025
- New holders
- 43
- 91 more added
- Sold out
- 35
- 75 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Sixth Street Specialty Lending, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Atlas Capital Advisors LLC | 5,115 | $94.0K | 0.01% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 5,000 | $91.9K | 0.00% | 00.0% | Unchanged |
| Frazier Financial Advisors, LLC | 4,814 | $88.5K | 0.05% | 00.0% | Unchanged |
| State of Alaska, Department of Revenue | 4,529 | $83.0K | 0.00% | 00.0% | Unchanged |
| Key Capital Management, INC | 4,389 | $80.7K | 0.05% | −1,927−30.5% | Reduced |
| Wall Street Access Asset Management, LLC | 80,000 | $79.5K | 0.02% | +80,000 | New |
| Federation des caisses Desjardins du Quebec | 4,000 | $73.5K | 0.00% | 00.0% | Unchanged |
| Titiun Yejiel | 4,000 | $73.5K | 0.07% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 3,669 | $66.4K | 0.00% | +244+7.1% | Added |
| Signaturefd, LLC | 3,516 | $64.6K | 0.00% | −1,382−28.2% | Reduced |
| Fifth Third Bancorp | 3,444 | $63.3K | 0.00% | +3,444 | New |
| Union Bancaire Privee, UBP SA | 3,482 | $62.4K | 0.00% | −11,532−76.8% | Reduced |
| Harbour Investments, Inc. | 3,156 | $58.0K | 0.00% | +2,978+1,673.0% | Added |
| Burk Holdings LLC | 2,952 | $54.3K | 0.02% | +2,952 | New |
| Advisory Services Network, LLC | 2,926 | $53.8K | 0.00% | +2,926 | New |
| Quadrant Capital Group LLC | 2,773 | $51.0K | 0.00% | +2,462+791.6% | Added |
| Osbon Capital Management LLC | 2,740 | $50.4K | 0.04% | +2,740 | New |
| MAI Capital Management | 2,436 | $44.8K | 0.00% | −697−22.2% | Reduced |
| EverSource Wealth Advisors, LLC | 2,169 | $39.9K | 0.00% | +276+14.6% | Added |
| MTM Investment Management, LLC | 2,040 | $37.5K | 0.01% | 00.0% | Unchanged |
| BI Asset Management Fondsmaeglerselskab A/S | 2,002 | $37.0K | 0.00% | +43+2.2% | Added |
| Jones Financial Companies LLLP | 1,984 | $34.7K | 0.00% | −27−1.3% | Reduced |
| Caitong International Asset Management Co., Ltd | 1,871 | $34.4K | 0.01% | +1,871 | New |
| Harbor Investment Advisory, LLC | 1,738 | $31.9K | 0.00% | +6+0.3% | Added |
| Innovative Asset Advisors Group, LLC | 1,700 | $31.2K | 0.02% | +1,700 | New |
| Geneos Wealth Management Inc. | 1,525 | $28.0K | 0.00% | 00.0% | Unchanged |
| First Community Trust NA | 1,040 | $19.1K | 0.01% | 00.0% | Unchanged |
| Huntington National Bank | 1,001 | $18.4K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 1,000 | $18.4K | 0.00% | +1,000 | New |
| Basso Capital Management, L.P. | 1,000 | $18.4K | 0.01% | +1,000 | New |
| Community Bank, N.A. | 1,000 | $18.4K | 0.00% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 900 | $16.5K | 0.00% | −1,300−59.1% | Reduced |
| Hilltop National Bank | 684 | $12.6K | 0.00% | +684 | New |
| International Assets Investment Management, LLC | 644 | $11.7K | 0.00% | 00.0% | Unchanged |
| Private Trust Co NA | 600 | $11.0K | 0.00% | 00.0% | Unchanged |
| Westside Investment Management, Inc. | 572 | $10.5K | 0.00% | 00.0% | Unchanged |
| Valley National Advisers Inc | 500 | $9.00K | 0.00% | 00.0% | Unchanged |
| Blume Capital Management, Inc. | 450 | $8.27K | 0.00% | 00.0% | Unchanged |
| Atlantic Union Bankshares Corp | 400 | $7.35K | 0.00% | 00.0% | Unchanged |
| Rossby Financial, LCC | 397 | $7.19K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 353 | $6.50K | 0.00% | +53+17.7% | Added |
| Delta Asset Management LLC | 250 | $4.59K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 238 | $4.37K | 0.00% | +55+30.1% | Added |
| Umb Bank N A | 158 | $2.90K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 129 | $2.37K | 0.00% | −21,525−99.4% | Reduced |
| Hilton Head Capital Partners, LLC | 120 | $2.21K | 0.00% | +120 | New |
| Brown Brothers Harriman & Co | 100 | $1.84K | 0.00% | 00.0% | Unchanged |
| Triumph Capital Management | 100 | $1.84K | 0.00% | 00.0% | Unchanged |
| Glen Eagle Advisors, LLC | 100 | $1.84K | 0.00% | 00.0% | Unchanged |
| Provenance Wealth Advisors, LLC | 100 | $1.84K | 0.00% | 00.0% | Unchanged |
| Advantage Trust Co | 100 | $1.84K | 0.00% | +100 | New |
| Hager Investment Management Services, LLC | 57 | $1.04K | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 45 | $828 | 0.00% | +1+2.3% | Added |
| GAMMA Investing LLC | 37 | $680 | 0.00% | 00.0% | Unchanged |
| FMR LLC | 35 | $634 | 0.00% | −45−56.3% | Reduced |
| Group One Trading, L.P. | 19 | $349 | 0.00% | +19 | New |
| PMV Capital Advisers, LLC | 8 | $147 | 0.00% | +8 | New |
| National Bank of Canada | 5 | $92 | 0.00% | −5−50.0% | Reduced |
| Smartleaf Asset Management LLC | 3 | $54 | 0.00% | +3 | New |
| Danske Bank A/S | 1 | $18 | 0.00% | 00.0% | Unchanged |
| Bank of Montreal | 0 | $0 | 0.00% | −2,284,920−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −393,298−100.0% | Sold out |
| Stratos Wealth Advisors, LLC | 0 | $0 | 0.00% | −190,094−100.0% | Sold out |
| Standard Life Aberdeen plc | 0 | $0 | 0.00% | −123,237−100.0% | Sold out |
| Barclays PLC | 0 | $0 | 0.00% | −72,066−100.0% | Sold out |
| Grantham, Mayo, Van Otterloo & Co. LLC | 0 | $0 | 0.00% | −67,847−100.0% | Sold out |
| FJ Capital Management LLC | 0 | $0 | 0.00% | −58,423−100.0% | Sold out |
| Closed-End Fund Advisors, Inc. | 0 | $0 | 0.00% | −34,249−100.0% | Sold out |
| Ellsworth Advisors, LLC | 0 | $0 | 0.00% | −33,190−100.0% | Sold out |
| Caxton Associates LLP | 0 | $0 | 0.00% | −33,356−100.0% | Sold out |
| TrueMark Investments, LLC | 0 | $0 | 0.00% | −30,312−100.0% | Sold out |
| Eagle Global Advisors LLC | 0 | $0 | 0.00% | −25,835−100.0% | Sold out |
| Magnus Financial Group LLC | 0 | $0 | 0.00% | −22,892−100.0% | Sold out |
| IFG Advisory, LLC | 0 | $0 | 0.00% | −21,374−100.0% | Sold out |
| Mirador Capital Partners LP | 0 | $0 | 0.00% | −21,281−100.0% | Sold out |
| Evergreen Capital Management LLC | 0 | $0 | 0.00% | −16,470−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −16,038−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −15,261−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −12,586−100.0% | Sold out |
| Mirae Asset Global Investments Co., Ltd. | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Baird Financial Group, Inc. | 0 | $0 | 0.00% | −9,885−100.0% | Sold out |
| Glenview Trust Co | 0 | $0 | 0.00% | −9,700−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −4,986−100.0% | Sold out |
| Nomura Asset Management Co Ltd | 0 | $0 | 0.00% | −2,239−100.0% | Sold out |
| Bartlett & Co. Wealth Management LLC | 0 | $0 | 0.00% | −700−100.0% | Sold out |
| Greykasell Wealth Strategies, Inc. | 0 | $0 | 0.00% | −520−100.0% | Sold out |
| Flagship Harbor Advisors, LLC | 0 | $0 | 0.00% | −419−100.0% | Sold out |
| WealthCollab, LLC | 0 | $0 | 0.00% | −340−100.0% | Sold out |
| IFC & Insurance Marketing, Inc. | 0 | $0 | 0.00% | −238−100.0% | Sold out |
| Garton & Associates Financial Advisors LLC | 0 | $0 | 0.00% | −215−100.0% | Sold out |
| Bare Financial Services, Inc | 0 | $0 | 0.00% | −190−100.0% | Sold out |
| Ronald Blue Trust, Inc. | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| Assetmark, Inc | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Essential Partners LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Rhumbline Advisers | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Comerica Bank | – | – | – | – | Not filed |
| EMC Capital Management | – | – | – | – | Not filed |
| Redmont Wealth Advisors LLC | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |