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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.

13F holders, Q4 2023

Institutional positions in Sixth Street Specialty Lending, Inc. as of Dec 31, 2023. 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
223
+21 vs. Q3 2023
Shares held
41.2M
+1.95M (+5.0%) vs. Q3 2023
Total value
$889.5M
+$87.8M (+10.9%) vs. Q3 2023
New holders
39
81 more added
Sold out
18
60 more reduced

3 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: 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 holdersQ4 2023: 223 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 heldQ4 2023: $889.5M
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, Q4 2023

Shares, value and share of portfolio for each institution holding Sixth Street Specialty Lending, Inc.; share changes are against Q3 2023.

Institutions holding TSLX in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Ronald Blue Trust, Inc.15$00.00%+15New
Naples Money Management LLC1$250.00%+1New
FMR LLC2$430.00%+2New
Riggs Asset Managment Co. Inc.20$4320.00%+20New
Hexagon Capital Partners LLC34$7350.00%00.0%Unchanged
GAMMA Investing LLC37$8010.00%+37New
National Bank of Canada80$1.73K0.00%00.0%Unchanged
Glen Eagle Advisors, LLC100$2.16K0.00%00.0%Unchanged
Provenance Wealth Advisors, LLC100$2.16K0.00%00.0%Unchanged
Allworth Financial LP119$2.57K0.00%+20+20.2%Added
Larson Financial Group LLC142$3.07K0.00%00.0%Unchanged
Harbour Investments, Inc.178$3.85K0.00%00.0%Unchanged
Caitlin John, LLC178$3.85K0.00%+178New
Lindbrook Capital, LLC196$4.23K0.00%−27−12.1%Reduced
Harbor Investment Advisory, LLC200$4.32K0.00%00.0%Unchanged
Quarry LP205$4.43K0.00%+205New
WealthCollab, LLC220$4.75K0.00%+220New
Farther Finance Advisors, LLC231$4.99K0.00%−1−0.4%Reduced
Delta Asset Management LLC250$5.40K0.00%00.0%Unchanged
Tucker Asset Management LLC320$6.91K0.00%00.0%Unchanged
First Manhattan Co335$7.24K0.00%00.0%Unchanged
Anchor Investment Management, LLC390$8.43K0.00%+390New
Blume Capital Management, Inc.450$9.72K0.00%00.0%Unchanged
Macroview Investment Management LLC476$10.3K0.01%−52−9.8%Reduced
AllSquare Wealth Management LLC500$10.8K0.01%00.0%Unchanged
Tradition Wealth Management, LLC500$11.0K0.00%00.0%Unchanged
Kelly Financial Services LLC563$12.2K0.00%+15+2.7%Added
Quadrant Capital Group LLC579$12.5K0.00%00.0%Unchanged
Bartlett & Co. LLC700$15.0K0.00%+700New
Private Trust Co NA704$15.2K0.00%00.0%Unchanged
Bartlett & Co. Wealth Management LLC700$15.7K0.00%+700New
First Horizon Advisors, Inc.753$16.3K0.00%+753New
O'Dell Group, LLC800$17.3K0.00%+800New
Global Retirement Partners, LLC857$18.5K0.00%+857New
CWM, LLC903$19.0K0.00%+7+0.8%Added
St Germain D J Co Inc948$20.5K0.00%+948New
Proequities, Inc.1,000$21.6K0.00%+1,000New
Huntington National Bank1,001$21.6K0.00%00.0%Unchanged
First Community Trust NA1,040$22.5K0.02%00.0%Unchanged
Beacon Capital Management, LLC1,120$22.9K0.01%00.0%Unchanged
Acadian Asset Management LLC1,327$28.0K0.00%+171+14.8%Added
GWM Advisors LLC1,326$28.6K0.00%+1+0.1%Added
Armstrong Advisory Group, Inc1,362$29.4K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC1,449$31.3K0.00%−394−21.4%Reduced
Community Bank, N.A.1,500$32.4K0.00%+500+50.0%Added
Geneos Wealth Management Inc.1,525$32.9K0.00%−6,090−80.0%Reduced
Citigroup Inc1,593$34.4K0.00%+886+125.3%Added
TD Waterhouse Canada Inc.1,670$36.4K0.00%+1,670New
FIL Ltd1,790$38.7K0.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec2,000$43.2K0.00%00.0%Unchanged
Whittier Trust Co2,200$47.5K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)2,281$49.3K0.00%+1,944+576.9%Added
Coppell Advisory Solutions LLC2,689$58.1K0.01%+344+14.7%Added
Cape Investment Advisory, Inc.2,989$64.6K0.03%+2,989New
Security National Bank3,171$68.5K0.02%+3,171New
Advisory Services Network, LLC4,122$89.0K0.00%+4,122New
Frazier Financial Advisors, LLC4,814$104.0K0.09%+4,814New
Atlas Capital Advisors LLC5,115$110.5K0.02%00.0%Unchanged
Vaughan Nelson Investment Management, L.P.5,350$116.0K0.00%00.0%Unchanged
EMC Capital Management5,482$118.0K0.08%00.0%Unchanged
Signaturefd, LLC5,486$118.5K0.00%+1,119+25.6%Added
BI Asset Management Fondsmaeglerselskab A/S6,450$139.0K0.00%00.0%Unchanged
Register Financial Advisors LLC6,556$141.6K0.09%+17+0.3%Added
The PNC Financial Services Group, Inc.9,310$201.1K0.00%−291−3.0%Reduced
Mercer Global Advisors Inc9,391$203.0K0.00%+9,391New
ExodusPoint Capital Management, LP9,388$203.0K0.00%+9,388New
Precision Wealth Strategies, LLC9,493$205.0K0.20%+9,493New
Millennium Management LLC9,770$211.0K0.00%+9,770New
Steward Partners Investment Advisory, LLC10,135$218.9K0.00%+1,714+20.4%Added
Whalerock Point Partners, LLC10,375$224.1K0.07%00.0%Unchanged
Centiva Capital, LP10,421$225.1K0.01%−263−2.5%Reduced
Squarepoint Ops LLC10,542$227.7K0.00%+10,542New
CAPROCK Group, Inc.11,014$237.9K0.02%−2,440−18.1%Reduced
Natixis11,137$240.6K0.00%+40.0%Added
ProShare Advisors LLC11,304$244.2K0.00%−1,145−9.2%Reduced
Group One Trading, L.P.11,634$251.3K0.01%+11,634New
Core Wealth Partners LLC11,668$252.0K0.21%00.0%Unchanged
Advisory Research Inc11,705$252.8K0.04%−48,526−80.6%Reduced
Aquatic Capital Management LLC11,900$257.0K0.01%+10,900+1,090.0%Added
Worth Asset Management, LLC12,005$259.3K0.19%+1,529+14.6%Added
XTX Topco Ltd12,113$261.6K0.06%+12,113New
Stratos Wealth Partners, LTD.12,249$264.6K0.00%+12,249New
Cambridge Investment Research Advisors, Inc.12,294$266.0K0.00%−15,564−55.9%Reduced
PEAK6 Investments LLC12,733$275.0K0.01%+6,558+106.2%Added
Westmount Partners, LLC13,030$281.4K0.11%00.0%Unchanged
Atria Wealth Solutions, Inc.13,195$285.0K0.00%−4,985−27.4%Reduced
Citadel Advisors LLC13,560$292.9K0.00%−26,880−66.5%Reduced
Bank of New York Mellon Corp14,398$311.0K0.00%−283,685−95.2%Reduced
Truvestments Capital LLC14,700$317.5K0.14%+14,700New
Simplex Trading, LLC14,790$319.0K0.01%+14,790New
Cetera Advisors LLC14,950$322.9K0.00%+2,135+16.7%Added
Inspirion Wealth Advisors, LLC15,426$333.0K0.06%00.0%Unchanged
Comerica Bank16,632$359.3K0.00%+1,197+7.8%Added
Belpointe Asset Management LLC17,377$375.4K0.03%−98,312−85.0%Reduced
Evergreen Capital Management LLC17,534$378.7K0.02%+111+0.6%Added
Wilbanks Smith & Thomas Asset Management LLC18,000$388.8K0.01%00.0%Unchanged
IFG Advisory, LLC18,344$396.3K0.03%+116+0.6%Added
Virtus ETF Advisers LLC18,543$400.5K0.25%−10,064−35.2%Reduced
Significant Wealth Partners LLC19,328$417.5K0.30%+19,328New
London & Capital Asset Management Ltd19,400$419.0K0.04%00.0%Unchanged