SIXTH STREET SPECIALTY LENDI (TSLX) Top Institutional Shareholders
SIXTH STREET SPECIALTY LENDI (TSLX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $893.93M in TSLX holdings during the latest filing period.
Strs Ohio is currently the largest disclosed institutional shareholder of TSLX tracked by InsiderSet, reporting ownership valued at approximately $79.91M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $71.74M, representing an estimated loss of -10.23% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 44% of the total disclosed TSLX value among the investors covered in this analysis. Major shareholders include Strs Ohio, Sixth Street Partners Management Company, L.P., Sound Income Strategies, Llc, and several other long-term asset managers with concentrated positions in SIXTH STREET SPECIALTY LENDI (TSLX).
This page ranks the largest institutional TSLX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
257
Total Reported Value
$893.93M
Largest Holder
Strs Ohio
Largest Position
$79.91M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
135
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Strs Ohio | 0.32% | 4,347,710 | $79,910,918 | $71,737,215 | -$8,173,703 | -10.23% | |
| Sixth Street Partners Management Company, L.P. | 7.02% | 2,714,226 | $49,887,474 | $44,784,729 | -$5,102,745 | -10.23% | |
| Sound Income Strategies, Llc | 2.25% | 2,571,052 | $46,561,752 | $42,422,358 | -$4,139,394 | -8.89% | |
| Progeny 3, Inc. | 2.43% | 2,476,398 | $45,516,195 | $40,860,567 | -$4,655,628 | -10.23% | |
| Omers Administration Corp | 0.23% | 1,961,813 | $36,058,123 | $32,369,915 | -$3,688,209 | -10.23% | |
| Ubs Group Ag | 0.01% | 1,858,267 | $34,154,947 | $30,661,406 | -$3,493,542 | -10.23% | |
| Allen Investment Management, Llc | 0.32% | 1,395,961 | $25,657,763 | $23,033,357 | -$2,624,407 | -10.23% | |
| Ares Management Llc | 1.64% | 1,354,779 | $24,900,838 | $22,353,854 | -$2,546,985 | -10.23% | |
| Wells Fargo & Company/Mn | 0.00% | 1,338,623 | $24,603,887 | $22,087,280 | -$2,516,608 | -10.23% | |
| Morgan Stanley | 0.00% | 1,327,615 | $24,401,567 | $21,905,648 | -$2,495,920 | -10.23% | |
| Cerity Partners Llc | 0.03% | 1,135,996 | $20,879,599 | $18,743,934 | -$2,135,665 | -10.23% | |
| Callodine Capital Management, Lp | 1.46% | 1,129,520 | $20,760,578 | $18,637,080 | -$2,123,498 | -10.23% | |
| Muzinich & Co., Inc. | 6.73% | 1,046,996 | $19,243,804 | $17,275,434 | -$1,968,370 | -10.23% | |
| Raymond James Financial Inc | 0.01% | 918,576 | $16,883,438 | $15,156,504 | -$1,726,934 | -10.23% | |
| Advisors Capital Management, Llc | 0.17% | 785,485 | $14,437,217 | $12,960,503 | -$1,476,715 | -10.23% | |
| Sumitomo Mitsui Trust Group, Inc. | 0.01% | 770,173 | $14,155,780 | $12,707,855 | -$1,447,926 | -10.23% | |
| Stifel Financial Corp | 0.01% | 750,754 | $13,798,884 | $12,387,441 | -$1,411,443 | -10.23% | |
| Bank Of America Corp | 0.00% | 735,726 | $13,522,648 | $12,139,479 | -$1,383,169 | -10.23% | |
| Legal & General Group Plc | 0.00% | 732,648 | $13,473,397 | $12,088,692 | -$1,384,705 | -10.28% | |
| Tectonic Advisors Llc | 0.71% | 728,099 | $13,382,451 | $12,013,634 | -$1,368,818 | -10.23% | |
| Lpl Financial Llc | 0.00% | 672,738 | $12,364,928 | $11,100,177 | -$1,264,751 | -10.23% | |
| Scs Capital Management Llc | 0.13% | 666,377 | $12,248,013 | $10,995,221 | -$1,252,793 | -10.23% | |
| Goldman Sachs Group Inc | 0.00% | 639,759 | $11,758,771 | $10,556,024 | -$1,202,748 | -10.23% | |
| Envestnet Asset Management Inc | 0.00% | 639,390 | $11,751,992 | $10,549,935 | -$1,202,057 | -10.23% | |
| Qube Research & Technologies Ltd | 0.02% | 611,805 | $11,244,976 | $10,094,783 | -$1,150,194 | -10.23% | |
| Panoramic Investment Advisors, Llc | 5.43% | 611,047 | $11,231,053 | $10,082,276 | -$1,148,778 | -10.23% | |
| Melia Wealth Llc | 5.44% | 611,045 | $11,231,016 | $10,082,243 | -$1,148,774 | -10.23% | |
| Franklin Resources Inc | 0.00% | 610,007 | $11,211,929 | $10,065,116 | -$1,146,814 | -10.23% | |
| Cetera Investment Advisers | 0.01% | 598,348 | $10,997,644 | $9,872,742 | -$1,124,902 | -10.23% | |
| Columbus Macro, Llc | 1.08% | 549,170 | $10,093,742 | $9,061,305 | -$1,032,437 | -10.23% | |
| Neuberger Berman Group Llc | 0.01% | 521,820 | $9,591,052 | $8,610,030 | -$981,022 | -10.23% | |
| Gilman Hill Asset Management, Llc | 1.34% | 483,937 | $8,894,757 | $7,984,961 | -$909,797 | -10.23% | |
| Cresset Asset Management, Llc | 0.04% | 467,470 | $8,592,086 | $7,713,255 | -$878,831 | -10.23% | |
| Blackrock, Inc. | 0.00% | 461,813 | $8,488,121 | $7,619,915 | -$868,207 | -10.23% | |
| Pathstone Holdings, Llc | 0.03% | 442,900 | $8,140,533 | $7,307,850 | -$832,683 | -10.23% | |
| Two Sigma Investments, Lp | 0.01% | 412,969 | $7,590,370 | $6,813,989 | -$776,382 | -10.23% | |
| Mgo One Seven Llc | 0.13% | 358,394 | $6,587,292 | $5,913,501 | -$673,791 | -10.23% | |
| Altshuler Shaham Ltd | 0.10% | 301,460 | $5,540,835 | $4,974,090 | -$566,745 | -10.23% | |
| Rivernorth Capital Management, Llc | 0.27% | 290,953 | $5,347,716 | $4,800,725 | -$546,992 | -10.23% | |
| Rmr Capital Management, Llc | 3.36% | 252,808 | $4,646,627 | $4,171,332 | -$475,295 | -10.23% | |
| Manufacturers Life Insurance Company, The | 0.00% | 246,378 | $4,528,428 | $4,065,237 | -$463,191 | -10.23% | |
| Ifp Advisors, Inc | 0.09% | 233,911 | $4,299,284 | $3,859,532 | -$439,753 | -10.23% | |
| Advisors Asset Management, Inc. | 0.07% | 220,192 | $4,047,129 | $3,633,168 | -$413,961 | -10.23% | |
| Confluence Investment Management Llc | 0.06% | 207,790 | $3,819,180 | $3,428,535 | -$390,645 | -10.23% | |
| D.A. Davidson & Co. | 0.02% | 200,594 | $3,686,931 | $3,309,801 | -$377,130 | -10.23% | |
| D. E. Shaw & Co., Inc. | 0.00% | 185,754 | $3,414,159 | $3,064,941 | -$349,218 | -10.23% | |
| Truvestments Capital Llc | 0.61% | 182,589 | $3,355,987 | $3,012,719 | -$343,269 | -10.23% | |
| Benjamin Edwards Inc | 0.03% | 173,556 | $3,189,785 | $2,863,674 | -$326,111 | -10.22% | |
| Texas Capital Bank Wealth Management Services Inc | 0.18% | 166,754 | $3,064,938 | $2,751,441 | -$313,497 | -10.23% | |
| Atom Investors Lp | 0.21% | 162,016 | $2,977,854 | $2,673,264 | -$304,590 | -10.23% |
Frequently asked questions about TSLX
Who owns the most TSLX stock?
The largest holders of TSLX are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SIXTH STREET SPECIALTY LENDI (TSLX).
Is TSLX widely held by superinvestors?
Many widely followed stocks like TSLX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly TSLX is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.