Skip to main content
Livermore
Livermore
ZHEN

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 2026

Institutional positions in Sixth Street Specialty Lending, Inc. as of Jun 30, 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
242
−15 vs. Q1 2026
Shares held
52.2M
+203.2K (+0.4%) vs. Q1 2026
Total value
$896.5M
−$57.3M (−6.0%) vs. Q1 2026
New holders
23
87 more added
Sold out
38
81 more reduced

3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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.

Institutional holdersQ2 2026: 242 institutions
Q1 2021: 159 institutionsQ2 2021: 158 institutionsQ3 2021: 159 institutionsQ4 2021: 168 institutionsQ1 2022: 171 institutionsQ2 2022: 180 institutionsQ3 2022: 175 institutionsQ4 2022: 196 institutionsQ1 2023: 195 institutionsQ2 2023: 202 institutionsQ3 2023: 205 institutionsQ4 2023: 223 institutionsQ1 2024: 220 institutionsQ2 2024: 224 institutionsQ3 2024: 202 institutionsQ4 2024: 223 institutionsQ1 2025: 236 institutionsQ2 2025: 245 institutionsQ3 2025: 247 institutionsQ4 2025: 258 institutionsQ1 2026: 260 institutionsQ2 2026: 242 institutions
Value heldQ2 2026: $896.5M
Q1 2021: $758.6MQ2 2021: $808.3MQ3 2021: $813.5MQ4 2021: $855.4MQ1 2022: $825.9MQ2 2022: $655.5MQ3 2022: $601.1MQ4 2022: $643.2MQ1 2023: $621.2MQ2 2023: $705.0MQ3 2023: $806.6MQ4 2023: $889.5MQ1 2024: $936.0MQ2 2024: $962.2MQ3 2024: $904.9MQ4 2024: $963.5MQ1 2025: $1.07BQ2 2025: $1.16BQ3 2025: $1.11BQ4 2025: $1.09BQ1 2026: $955.4MQ2 2026: $896.5M
Institutions holding TSLX and their total value by quarter
QuarterHoldersValue
Q2 2026242$896.5M
Q1 2026260$955.4M
Q4 2025258$1.09B
Q3 2025247$1.11B
Q2 2025245$1.16B
Q1 2025236$1.07B
Q4 2024223$963.5M
Q3 2024202$904.9M
Q2 2024224$962.2M
Q1 2024220$936.0M
Q4 2023223$889.5M
Q3 2023205$806.6M
Q2 2023202$705.0M
Q1 2023195$621.2M
Q4 2022196$643.2M
Q3 2022175$601.1M
Q2 2022180$655.5M
Q1 2022171$825.9M
Q4 2021168$855.4M
Q3 2021159$813.5M
Q2 2021158$808.3M
Q1 2021159$758.6M

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Sixth Street Specialty Lending, Inc.; share changes are against Q1 2026.

Institutions holding TSLX in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Nations Financial Group Inc,34,996$600.9K0.03%+1,829+5.5%Added
Foundations Investment Advisors, LLC34,836$598.1K0.01%−12,922−27.1%Reduced
HighTower Advisors, LLC34,255$588.2K0.00%+5,026+17.2%Added
Guggenheim Capital LLC34,255$588.2K0.00%+3,039+9.7%Added
Squarepoint Ops LLC33,629$577.4K0.00%+7,211+27.3%Added
Wiley Bros.-Aintree Capital, LLC33,482$574.9K0.00%−47,497−58.7%Reduced
Buckingham Strategic Partners33,218$570.4K0.00%+1,730+5.5%Added
Dakota Wealth Management32,990$566.4K0.01%−1,310−3.8%Reduced
Invesco Ltd.32,044$550.2K0.00%+199+0.6%Added
Closed-End Fund Advisors, Inc.31,937$548.4K0.54%+31,937New
Pallas Capital Advisors LLC30,881$530.2K0.02%−12,071−28.1%Reduced
Romano Brothers and Company29,700$509.9K0.05%00.0%Unchanged
Dearborn Partners LLC28,579$490.7K0.03%−21,929−43.4%Reduced
Ethos Financial Group, LLC27,097$465.3K0.03%−677−2.4%Reduced
Mercer Global Advisors Inc26,373$452.8K0.00%+26,373New
Sage Investment Counsel LLC25,577$439.2K0.44%00.0%Unchanged
US Bancorp25,000$429.3K0.00%−353−1.4%Reduced
Merrion Investment Management Co, LLC25,000$429.3K0.20%00.0%Unchanged
TrueMark Investments, LLC24,038$412.7K0.05%+24,038New
Citadel Advisors LLC23,639$405.9K0.00%+1,846+8.5%Added
IFG Advisory, LLC22,598$388.0K0.01%+22,598New
Truist Financial Corp22,549$387.2K0.00%+22,549New
Virtus Investment Advisers, Inc.22,230$381.7K0.09%−4,399−16.5%Reduced
MAI Capital Management21,564$370.3K0.00%+19,128+785.2%Added
Kovack Advisors, Inc.21,328$366.2K0.02%+1,909+9.8%Added
Generali Investments CEE, investicni spolecnost, a.s.21,235$364.6K0.02%00.0%Unchanged
Mutual Advisors, LLC20,800$357.1K0.01%+4,000+23.8%Added
Monument Capital Management20,663$354.8K0.07%+2,549+14.1%Added
Kapitalo Investimentos Ltda20,080$344.8K0.03%+20,080New
Beacon Pointe Advisors, LLC19,616$336.8K0.00%−42,903−68.6%Reduced
Integrated Wealth Concepts LLC19,125$328.4K0.00%+386+2.1%Added
Catalytic Wealth RIA, LLC19,116$328.2K0.02%00.0%Unchanged
Maia Wealth LLC18,597$319.3K0.05%+442+2.4%Added
Quantinno Capital Management LP18,547$318.5K0.00%−43,552−70.1%Reduced
COFG Advisors, LLC18,509$317.8K0.05%+801+4.5%Added
Clearstead Advisors, LLC18,463$317.0K0.00%+463+2.6%Added
Sargent Investment Group, LLC18,400$315.9K0.04%00.0%Unchanged
Kestra Advisory Services, LLC18,241$313.2K0.00%−469−2.5%Reduced
Chicago Partners Investment Group LLC18,746$310.8K0.01%−3,106−14.2%Reduced
ProShare Advisors LLC17,683$303.6K0.00%−1,435−7.5%Reduced
Cornerstone Wealth Management, LLC17,443$299.5K0.01%−25,875−59.7%Reduced
Sanctuary Advisors, LLC17,019$292.2K0.00%−165−1.0%Reduced
Captrust Financial Advisors16,735$287.3K0.00%−16,113−49.1%Reduced
Farther Finance Advisors, LLC16,702$286.8K0.00%+13,033+355.2%Added
DRW Securities, LLC16,459$282.6K0.02%−12,575−43.3%Reduced
Mariner, LLC16,405$281.7K0.00%−10,576−39.2%Reduced
CAPROCK Group, Inc.16,384$281.3K0.01%−44,200−73.0%Reduced
Moneta Group Investment Advisors LLC16,088$276.2K0.00%+16,088New
Balyasny Asset Management LLC15,958$274.0K0.00%+15,958New
Creative Planning15,916$273.3K0.00%−23,776−59.9%Reduced
Heritage Trust Co15,889$272.8K0.02%00.0%Unchanged
Inspirion Wealth Advisors, LLC15,426$267.5K0.03%00.0%Unchanged
Whalerock Point Partners, LLC15,507$266.3K0.05%+9+0.1%Added
Price T Rowe Associates Inc15,297$264.0K0.00%+690+4.7%Added
Angeles Wealth Management, LLC15,000$257.6K0.01%00.0%Unchanged
Parallel Advisors, LLC14,836$254.7K0.00%−972−6.1%Reduced
Pasadena Private Wealth, LLC14,789$253.9K0.03%+500+3.5%Added
Mallini Complete Financial Planning LLC14,416$247.5K0.18%−1,700−10.5%Reduced
Triad Investment Management14,080$241.8K0.27%−12,522−47.1%Reduced
Principal Street Partners, LLC13,945$239.4K0.04%00.0%Unchanged
Summit Financial, LLC13,763$236.3K0.00%+52+0.4%Added
Osbon Capital Management LLC13,489$231.6K0.18%+10,749+392.3%Added
HB Wealth Management, LLC13,421$230.5K0.00%−21,095−61.1%Reduced
Stratos Wealth Partners, LTD.13,165$226.0K0.00%+3,073+30.4%Added
Natixis13,158$225.9K0.00%+534+4.2%Added
GWM Advisors LLC13,142$225.6K0.00%−2,189−14.3%Reduced
Westmount Partners, LLC13,030$223.7K0.05%00.0%Unchanged
Greenland Capital Management LP13,000$223.2K0.04%+13,000New
MML Investors Services, LLC12,616$216.6K0.00%+12,616New
Commerce Advisors, LLC12,387$212.7K0.12%+12,387New
Texas Yale Capital Corp.11,876$203.9K0.00%−25,500−68.2%Reduced
Sequoia Financial Advisors, LLC11,673$200.4K0.00%+11,673New
Core Wealth Partners LLC11,668$200.3K0.09%00.0%Unchanged
Indivisible Partners11,535$198.1K0.01%−1,667−12.6%Reduced
Laird Norton Trust Company, LLC11,467$196.9K0.00%00.0%Unchanged
Principle Wealth Partners LLC11,309$194.2K0.01%00.0%Unchanged
Oppenheimer & Co Inc11,238$193.0K0.00%−1,137−9.2%Reduced
Bank of New York Mellon Corp11,115$190.8K0.00%−2,024−15.4%Reduced
Miller Global Investments, LLC10,367$178.0K0.15%00.0%Unchanged
Susquehanna International Group, LLP10,262$176.2K0.00%+10,262New
Caz Investments LP10,000$171.7K0.08%00.0%Unchanged
SRS Capital Advisors, Inc.10,000$171.7K0.00%+5,000+100.0%Added
Register Financial Advisors LLC9,146$157.0K0.05%+21+0.2%Added
Global Retirement Partners, LLC8,068$138.5K0.00%+8,068New
Steward Partners Investment Advisory, LLC6,953$119.4K0.00%−7,133−50.6%Reduced
Simplex Trading, LLC6,853$117.7K0.00%+263+4.0%Added
FMR LLC6,366$109.3K0.00%+6,331+18,088.6%Added
North Star Investment Management Corp.6,017$103.3K0.01%00.0%Unchanged
Northwestern Mutual Wealth Management Co5,568$95.6K0.00%+60+1.1%Added
Vaughan Nelson Investment Management, L.P.5,350$91.9K0.00%00.0%Unchanged
Frazier Financial Advisors, LLC4,814$82.7K0.04%00.0%Unchanged
State of Alaska, Department of Revenue4,529$77.0K0.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec4,000$68.7K0.00%00.0%Unchanged
Harbour Investments, Inc.3,229$55.4K0.00%+73+2.3%Added
Key Capital Management, INC3,160$54.3K0.03%−1,229−28.0%Reduced
Burk Holdings LLC2,952$50.7K0.02%00.0%Unchanged
Jones Financial Companies LLLP2,140$36.1K0.00%+156+7.9%Added
MTM Investment Management, LLC2,040$35.0K0.01%00.0%Unchanged
Group One Trading, L.P.2,019$34.7K0.00%+2,000+10,526.3%Added
EverSource Wealth Advisors, LLC1,842$31.6K0.00%−327−15.1%Reduced