% of shares outstanding not shown: no SEC cover-page share count falls within 120 days of the 2026-Q1 quarter end, so any percentage would rest on a count that cannot speak for this quarter. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for TSLX in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | STRS OHIO | 4,347,7104.3M | $80M | — | ADD 102% |
| 2 | Sixth Street Partners Management Company, L.P. | 2,714,2262.7M | $50M | — | — |
| 3 | Sound Income Strategies, LLC | 2,571,0522.6M | $47M | — | ADD 2% |
| 4 | Progeny 3, Inc. | 2,476,3982.5M | $46M | — | — |
| 5 | OMERS ADMINISTRATION Corp | 1,961,8132.0M | $36M | — | ADD 318% |
| 6 | UBS Group AG | 1,858,2671.9M | $34M | — | ADD 15% |
| 7 | VAN ECK ASSOCIATES CORP | 1,846,8101.8M | $34M | — | TRIM -21% |
| 8 | Allen Investment Management, LLC | 1,395,9611.4M | $26M | — | TRIM -11% |
| 9 | ARES MANAGEMENT LLC | 1,354,7791.4M | $25M | — | — |
| 10 | WELLS FARGO & COMPANY/MN | 1,338,6231.3M | $25M | — | ADD 5% |
| 11 | MORGAN STANLEY | 1,327,6151.3M | $24M | — | TRIM -44% |
| 12 | Cerity Partners LLC | 1,135,9961.1M | $21M | — | ADD 195% |
| 13 | Callodine Capital Management, LP | 1,129,5201.1M | $21M | — | ADD 2% |
| 14 | Muzinich & Co., Inc. | 1,046,9961.0M | $19M | — | ADD 5% |
| 15 | RAYMOND JAMES FINANCIAL INC | 918,576918,576 | $17M | — | ADD 3% |
| 16 | LSV ASSET MANAGEMENT | 789,112789,112 | $15M | — | — |
| 17 | Advisors Capital Management, LLC | 785,485785,485 | $14M | — | ADD 2% |
| 18 | Sumitomo Mitsui Trust Group, Inc. | 770,173770,173 | $14M | — | ADD 4% |
| 19 | STIFEL FINANCIAL CORP | 750,754750,754 | $14M | — | ADD 20% |
| 20 | BANK OF AMERICA CORP /DE/ | 735,726735,726 | $14M | — | TRIM -2% |
| 21 | Legal & General Group Plc | 732,648732,648 | $13M | — | ADD 10% |
| 22 | TECTONIC ADVISORS LLC | 728,099728,099 | $13M | — | ADD 18% |
| 23 | LPL Financial LLC | 672,738672,738 | $12M | — | TRIM -3% |
| 24 | SCS Capital Management LLC | 666,377666,377 | $12M | — | ADD 3% |
| 25 | GOLDMAN SACHS GROUP INC | 639,759639,759 | $12M | — | ADD 2% |
| 26 | ENVESTNET ASSET MANAGEMENT INC | 639,390639,390 | $12M | — | — |
| 27 | JPMORGAN CHASE & CO | 641,445641,445 | $11M | — | TRIM -31% |
| 28 | Qube Research & Technologies Ltd | 611,805611,805 | $11M | — | ADD 127% |
| 29 | Melia Wealth LLC | 611,045611,045 | $11M | — | — |
| 30 | FRANKLIN RESOURCES INC | 610,007610,007 | $11M | — | ADD 7% |
| 31 | Cetera Investment Advisers | 598,348598,348 | $11M | — | — |
| 32 | Columbus Macro, LLC | 549,170549,170 | $10M | — | — |
| 33 | NEUBERGER BERMAN GROUP LLC | 521,820521,820 | $10M | — | — |
| 34 | Gilman Hill Asset Management, LLC | 483,937483,937 | $9M | — | ADD 2% |
| 35 | Cresset Asset Management, LLC | 467,470467,470 | $9M | — | ADD 16% |
| 36 | BlackRock, Inc. | 461,813461,813 | $8M | — | TRIM -43% |
| 37 | Pathstone Holdings, LLC | 442,900442,900 | $8M | — | NEW |
| 38 | TWO SIGMA INVESTMENTS, LP | 412,969412,969 | $8M | — | ADD 12% |
| 39 | MGO ONE SEVEN LLC | 358,394358,394 | $7M | — | TRIM -2% |
| 40 | Altshuler Shaham Ltd | 301,460301,460 | $6M | — | — |
| 41 | RIVERNORTH CAPITAL MANAGEMENT, LLC | 290,953290,953 | $5M | — | NEW |
| 42 | RMR Capital Management, LLC | 252,808252,808 | $5M | — | ADD 28% |
| 43 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 246,378246,378 | $5M | — | ADD 7% |
| 44 | IFP Advisors, Inc | 233,911233,911 | $4M | — | ADD 245% |
| 45 | Advisors Asset Management, Inc. | 220,192220,192 | $4M | — | — |
| 46 | National Philanthropic Trust | 216,000216,000 | $4M | — | ADD 48% |
| 47 | CONFLUENCE INVESTMENT MANAGEMENT LLC | 207,790207,790 | $4M | — | TRIM -8% |
| 48 | Janney Montgomery Scott LLC | 206,551206,551 | $4M | — | TRIM -8% |
| 49 | D.A. DAVIDSON & CO. | 200,594200,594 | $4M | — | ADD 5% |
| 50 | D. E. Shaw & Co., Inc. | 185,754185,754 | $3M | — | NEW |
| 51 | Parkwood LLC | 184,819184,819 | $3M | — | — |
| 52 | Truvestments Capital LLC | 182,589182,589 | $3M | — | ADD 11% |
| 53 | BENJAMIN EDWARDS INC | 173,556173,556 | $3M | — | TRIM -20% |
| 54 | Texas Capital Bank Wealth Management Services Inc | 166,754166,754 | $3M | — | ADD 9% |
| 55 | Atom Investors LP | 162,016162,016 | $3M | — | ADD 51% |
| 56 | Naviter Wealth, LLC | 160,106160,106 | $3M | — | ADD 13% |
| 57 | Clayton Partners LLC | 159,556159,556 | $3M | — | TRIM -10% |
| 58 | LAZARD ASSET MANAGEMENT LLC | 152,856152,856 | $3M | — | NEW |
| 59 | Universal- Beteiligungs- und Servicegesellschaft mbH | 150,563150,563 | $3M | — | — |
| 60 | CANADA LIFE ASSURANCE Co | 148,312148,312 | $3M | — | TRIM -10% |
| 61 | DENALI ADVISORS LLC | 144,882144,882 | $3M | — | ADD 3% |
| 62 | RIVERBRIDGE PARTNERS LLC | 143,704143,704 | $3M | — | ADD 60% |
| 63 | Waterloo Capital, L.P. | 140,877140,877 | $3M | — | — |
| 64 | First National Trust Co | 137,667137,667 | $3M | — | TRIM -44% |
| 65 | Russell Investments Group, Ltd. | 134,913134,913 | $2M | — | ADD 74028% |
| 66 | Argent Trust Co | 129,821129,821 | $2M | — | TRIM -4% |
| 67 | Wealthstar Advisors, LLC | 129,524129,524 | $2M | — | — |
| 68 | COMMONWEALTH EQUITY SERVICES, LLC | 128,732128,732 | $2M | — | TRIM -18% |
| 69 | AMERIPRISE FINANCIAL INC | 122,366122,366 | $2M | — | TRIM -45% |
| 70 | ROYAL BANK OF CANADA | 120,921120,921 | $2M | — | TRIM -22% |
| 71 | IHT Wealth Management, LLC | 118,072118,072 | $2M | — | ADD 7% |
| 72 | Delphi Financial Group, Inc. | 116,141116,141 | $2M | — | ADD 262% |
| 73 | XTX Topco Ltd | 115,291115,291 | $2M | — | ADD 427% |
| 74 | STATE STREET CORP | 114,621114,621 | $2M | — | — |
| 75 | Ignite Planners, LLC | 111,879111,879 | $2M | — | ADD 9% |
| 76 | Lifetime Wealth Management P.C. | 97,41697,416 | $2M | — | ADD 77% |
| 77 | BNP PARIBAS FINANCIAL MARKETS | 96,54196,541 | $2M | — | ADD 5% |
| 78 | Plan Group Financial, LLC | 90,36990,369 | $2M | — | ADD 23% |
| 79 | Lansforsakringar Fondforvaltning AB (publ) | 84,04084,040 | $2M | — | ADD 28% |
| 80 | &PARTNERS | 80,97980,979 | $1M | — | TRIM -7% |
| 81 | Legacy Capital Wealth Partners, LLC | 74,79874,798 | $1M | — | ADD 10% |
| 82 | AE Wealth Management LLC | 67,48167,481 | $1M | — | ADD 125% |
| 83 | INDEPENDENT FINANCIAL GROUP, LLC | 65,54165,541 | $1M | — | ADD 11% |
| 84 | Beacon Pointe Advisors, LLC | 62,51962,519 | $1M | — | — |
| 85 | Quantinno Capital Management LP | 62,09962,099 | $1M | — | — |
| 86 | IEQ CAPITAL, LLC | 60,72360,723 | $1M | — | NEW |
| 87 | Caprock Group, LLC | 60,58460,584 | $1M | — | — |
| 88 | CWM, LLC | 57,11057,110 | $1M | — | TRIM -38% |
| 89 | TRED AVON FAMILY WEALTH, LLC | 55,75155,751 | $1M | — | ADD 27% |
| 90 | Tidal Investments LLC | 53,21953,219 | $978,165 | — | NEW |
| 91 | Rockefeller Capital Management L.P. | 52,82052,820 | $970,842 | — | TRIM -64% |
| 92 | Lido Advisors, LLC | 52,15452,154 | $958,605 | — | ADD 24% |
| 93 | DEARBORN PARTNERS LLC | 50,50850,508 | $928,342 | — | TRIM -10% |
| 94 | Savvy Advisors, Inc. | 49,34549,345 | $906,968 | — | ADD 14% |
| 95 | BROWN ADVISORY INC | 48,43048,430 | $890,146 | — | — |
| 96 | Foundations Investment Advisors, LLC | 47,75847,758 | $877,798 | — | ADD 19% |
| 97 | Schonfeld Strategic Advisors LLC | 47,50847,508 | $873,196 | — | NEW |
| 98 | MILLENNIUM MANAGEMENT LLC | 45,82845,828 | $842,319 | — | ADD 34% |
| 99 | Corient Private Wealth LLC | 45,17445,174 | $830,285 | — | TRIM -71% |
| 100 | Canton Hathaway, LLC | 44,76544,765 | $822,781 | — | TRIM -4% |
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| STRS OHIO | 3.5M | 3.6M | 3.2M | 2.1M | 2.2M | 4.3M | $80M |
| Sixth Street Partners Management Company, L.P. | 2.7M | 2.7M | 2.7M | 2.7M | 2.7M | 2.7M | $50M |
| Sound Income Strategies, LLC | 2.3M | 2.4M | 2.4M | 2.4M | 2.5M | 2.6M | $47M |
| Progeny 3, Inc. | 2.4M | 2.5M | 2.5M | 2.5M | 2.5M | 2.5M | $46M |
| OMERS ADMINISTRATION Corp | — | — | 178K | 182K | 469K | 2.0M | $36M |
| UBS Group AG | 439K | 876K | 1.2M | 1.3M | 1.6M | 1.9M | $34M |
| VAN ECK ASSOCIATES CORP | 2.4M | 2.2M | 2.1M | 2.5M | 2.3M | 1.8M | $34M |
| Allen Investment Management, LLC | 1.2M | 1.4M | 1.6M | 1.6M | 1.6M | 1.4M | $26M |
| ARES MANAGEMENT LLC | 1.6M | 1.4M | 1.4M | 1.4M | 1.4M | 1.4M | $25M |
| WELLS FARGO & COMPANY/MN | 1.2M | 1.2M | 1.2M | 1.2M | 1.3M | 1.3M | $25M |
| MORGAN STANLEY | 1.8M | 1.9M | 1.9M | 2.0M | 2.4M | 1.3M | $24M |
| Cerity Partners LLC | 465K | 444K | 423K | 410K | 385K | 1.1M | $21M |
| Callodine Capital Management, LP | 1.1M | 1.1M | 1.1M | 871K | 1.1M | 1.1M | $21M |
| Muzinich & Co., Inc. | 392K | 450K | 609K | 747K | 993K | 1.0M | $19M |
| RAYMOND JAMES FINANCIAL INC | 821K | 831K | 829K | 872K | 896K | 919K | $17M |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| STRS OHIO | +2,193,551 | $40M | ADD |
| OMERS ADMINISTRATION Corp | +1,492,704 | $27M | ADD |
| Cerity Partners LLC | +751,229 | $14M | ADD |
| Pathstone Holdings, LLC | +442,900 | $8M | OPEN |
| Qube Research & Technologies Ltd | +342,227 | $6M | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| BANK OF MONTREAL /CAN/ | −2,284,920 | $42M | CLOSE |
| MORGAN STANLEY | −1,063,013 | $20M | TRIM |
| VAN ECK ASSOCIATES CORP | −495,237 | $9M | TRIM |
| TWO SIGMA ADVISERS, LP | −393,298 | $7M | CLOSE |
| BlackRock, Inc. | −346,615 | $6M | TRIM |
The 2025-Q4 register is as-filed in ITS OWN share basis; every count below was rebased into the 2026-Q1 basis (no split in between, factor 1). Dollar figures value the SHARE delta at one price — the 2026-03-31 close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure.
13Fs disclose LONG US-listed positions only — shorts, most derivatives, bonds and non-US listings are invisible here, and a filer's quarter-over-quarter change is not necessarily a trade (index rebalances, in-kind transfers and entity successions all read as flow).
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 258 | 52,057,913 | — | $955M |
| 2025-Q4 | 258 | 50,411,352 | — | $1.1B |
| 2025-Q3 | 247 | 49,730,115 | — | $1.2B |
| 2025-Q2 | 245 | 49,228,561 | — | $1.2B |
| 2025-Q1 | 235 | 47,691,618 | — | $1.1B |
| 2024-Q4 | 221 | 45,158,355 | — | $962M |
| 2024-Q3 | 200 | 45,159,491 | — | $928M |
| 2024-Q2 | 222 | 45,994,110 | — | $982M |
| 2024-Q1 | 218 | 48,231,940 | — | $1.0B |
| 2023-Q4 | 221 | 44,321,167 | — | $957M |
| 2023-Q3 | 203 | 39,380,464 | — | $805M |
| 2023-Q2 | 200 | 37,811,599 | — | $707M |
| 2023-Q1 | 193 | 39,700,523 | — | $726M |
| 2022-Q4 | 193 | 36,126,259 | — | $642M |
| 2022-Q3 | 173 | 36,228,903 | — | $593M |
| 2022-Q2 | 178 | 35,378,192 | — | $654M |
| 2022-Q1 | 170 | 35,674,806 | — | $829M |
| 2021-Q4 | 166 | 36,255,222 | — | $847M |
| 2021-Q3 | 157 | 36,201,007 | — | $805M |
| 2021-Q2 | 156 | 36,054,208 | — | $800M |
| 2021-Q1 | 158 | 36,050,077 | — | $759M |
| 2020-Q4 | 145 | 36,798,083 | — | $764M |
| 2020-Q3 | 134 | 38,842,361 | — | $669M |
| 2020-Q2 | 131 | 37,942,199 | — | $626M |
