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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.

Q2 2026 vs. Q1 2026

How the institutions holding Sixth Street Specialty Lending, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026All holders in Q1 2026

13F holders of TSLX: Q1 2026 compared with Q2 2026
MeasureQ1 2026Of which not filed for Q2 2026Q2 2026Change
Holders2603242−15
Shares52.1M80.7K52.2M+203.2K (+0.4%)
Value$955.4M$1.48M$896.5M−$57.3M (−6.0%)

3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (23)

Institutions that held Sixth Street Specialty Lending, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to TSLX in Q2 2026
InstitutionSharesValue% of portfolio
Lighthouse Investment Partners, LLC203,539$3.49M0.11%
Ilex Capital Partners (UK) LLP105,198$1.81M0.04%
HRT Financial LP70,164$1.20M0.00%
Closed-End Fund Advisors, Inc.31,937$548.4K0.54%
Mercer Global Advisors Inc26,373$452.8K0.00%
TrueMark Investments, LLC24,038$412.7K0.05%
IFG Advisory, LLC22,598$388.0K0.01%
Truist Financial Corp22,549$387.2K0.00%
Kapitalo Investimentos Ltda20,080$344.8K0.03%
Moneta Group Investment Advisors LLC16,088$276.2K0.00%
Balyasny Asset Management LLC15,958$274.0K0.00%
Greenland Capital Management LP13,000$223.2K0.04%
MML Investors Services, LLC12,616$216.6K0.00%
Commerce Advisors, LLC12,387$212.7K0.12%
Sequoia Financial Advisors, LLC11,673$200.4K0.00%
Susquehanna International Group, LLP10,262$176.2K0.00%
Global Retirement Partners, LLC8,068$138.5K0.00%
Custom Index Systems, LLC1,488$25.5K0.01%
Trust Co of Vermont900$15.5K0.00%
Action Point Financial Planning, LLC477$8.19K0.00%
Buck Wealth Strategies, LLC166$2.85K0.00%
Bessemer Group Inc100$2.00K0.00%
JFS Wealth Advisors, LLC69$1.19K0.00%

Sold out (38)

Institutions that held Sixth Street Specialty Lending, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of TSLX in Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Columbus Macro, LLC549,170$10.1M
Manufacturers Life Insurance Company, The246,378$4.53M
First National Trust Co137,667$2.53M
XTX Topco Ltd115,291$2.12M
Lansforsakringar Fondforvaltning AB (publ)84,040$1.54M
Ieq Capital, LLC60,723$1.12M
Schonfeld Strategic Advisors LLC47,508$873.2K
Millennium Management LLC45,828$842.3K
ExodusPoint Capital Management, LP41,995$771.9K
Evoke Wealth, LLC39,858$732.6K
Brevan Howard Capital Management LP37,598$691.1K
Barnett & Company, Inc.27,850$511.9K
Jane Street Group, LLC24,658$453.2K
Klein Pavlis & Peasley Financial, Inc.24,325$447.1K
London & Capital Asset Management Ltd23,130$425.4K
Capstone Investment Advisors, LLC22,068$405.6K
Cornerstone Investment Partners, LLC20,884$383.8K
Silver Oak Securities, Inc20,521$377.2K
MQS Management LLC16,059$295.2K
Kavar Capital Partners Group, LLC15,632$287.3K
Calton & Associates, Inc.13,193$242.5K
Prospera Financial Services Inc12,027$221.1K
Investor's Fiduciary Advisor Network, LLC10,898$200.0K
Private Advisor Group, LLC10,728$197.2K
Worth Asset Management, LLC10,581$194.5K
The PNC Financial Services Group, Inc.7,341$134.9K
Tower Research Capital LLC (TRC)7,217$132.6K
Annis Gardner Whiting Capital Advisors, LLC5,235$96.2K
Atlas Capital Advisors LLC5,115$94.0K
Wall Street Access Asset Management, LLC80,000$79.5K
Titiun Yejiel4,000$73.5K
Advisory Services Network, LLC2,926$53.8K
Quadrant Capital Group LLC2,773$51.0K
Innovative Asset Advisors Group, LLC1,700$31.2K
Basso Capital Management, L.P.1,000$18.4K
Quantbot Technologies LP129$2.37K
GAMMA Investing LLC37$680
PMV Capital Advisers, LLC8$147

Not filed for Q2 2026 yet (3)

Institutions that held Sixth Street Specialty Lending, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding TSLX in Q1 2026 that haven't filed for Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
CWM, LLC57,110$1.05M
First Affirmative Financial Network15,121$277.9K
Sunbelt Securities, Inc.8,478$155.8K