Who owns Star Holdings (STHO)
Which tracked institutional funds hold STHO, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See STHO company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-15). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on STHO is one-sided between 2026-Q1 and 2026-Q2: 2 added or opened and 34 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
STHO’s largest tracked holder by dollar value, Hartree Partners, LP, sizes it at 9.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 9.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in STHO divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 2348 tracked filers holding STHO, 48 increased or opened the position and 48 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in STHO between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
Full exits 34
- Hartree Partners, LP$42M
- Bandera Partners LLC$34M
- Summit Trail Advisors, LLC$25M
- JPMORGAN CHASE & CO$17M
- Lubar & Co., Inc$16M
- Oakcliff Capital Partners, LP$13M
Largest adds
- BlackRock, Inc.$727K
- RENAISSANCE TECHNOLOGIES LLC$429K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Hartree Partners, LP | 3,400,907 | $42M | 18.1% | 2026-Q1 |
| Bandera Partners LLC | 2,745,360 | $34M | 14.6% | 2026-Q1 |
| Summit Trail Advisors, LLC new | 2,022,000 | $25M | 10.7% | 2026-Q1 |
| Lubar & Co., Inc | 1,295,985 | $16M | 6.9% | 2026-Q1 |
| Oakcliff Capital Partners, LP | 1,099,239 | $13M | 5.8% | 2026-Q1 |
| TORONTO DOMINION BANK added | 1,180,599 | $9M | 3.9% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 1,137,976 | $8M | 3.6% | 2026-Q1 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC trimmed | 1,137,976 | $8M | 3.6% | 2026-Q1 |
| Saba Capital Management, L.P. trimmed | 931,383 | $7M | 3.1% | 2026-Q1 |
| FOURSIXTHREE CAPITAL LP | 883,897 | $7M | 2.9% | 2026-Q1 |
| TCW GROUP INC added | 615,476 | $5M | 2.0% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 529,106 | $4M | 1.7% | 2026-Q1 |
| Peapod Lane Capital LLC added | 405,973 | $3M | 1.3% | 2026-Q1 |
| Joel Isaacson & Co., LLC added | 191,968 | $2M | 1.0% | 2026-Q1 |
| Blackstone Inc. | 173,629 | $2M | 0.9% | 2026-Q1 |
| Rangeley Capital, LLC added | 274,072 | $2M | 0.9% | 2026-Q1 |
| DOLIVER ADVISORS, LP | 139,939 | $2M | 0.7% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 129,080 | $2M | 0.7% | 2026-Q1 |
| Crossingbridge Advisors, LLC new | 109,777 | $1M | 0.6% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 174,525 | $1M | 0.6% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 109,899 | $1M | 0.4% | 2026-Q2 |
| Verition Fund Management LLC | 102,342 | $934K | 0.4% | 2026-Q2 |
| BROWN ADVISORY INC trimmed | 73,877 | $907K | 0.4% | 2026-Q1 |
| Gem Investment Advisors, LLC trimmed | 118,382 | $896K | 0.4% | 2026-Q1 |
| PARSONS CAPITAL MANAGEMENT INC/RI | 52,806 | $648K | 0.3% | 2026-Q1 |
| MORGAN STANLEY added | 84,486 | $640K | 0.3% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 51,730 | $635K | 0.3% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 76,522 | $579K | 0.3% | 2026-Q1 |
| Quantinno Capital Management LP trimmed | 75,865 | $574K | 0.2% | 2026-Q1 |
| GABELLI FUNDS LLC | 74,502 | $564K | 0.2% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 72,513 | $549K | 0.2% | 2026-Q1 |
| COMMONWEALTH EQUITY SERVICES, LLC added | 43,941 | $540K | 0.2% | 2026-Q1 |
| STATE STREET CORP | 55,065 | $503K | 0.2% | 2026-Q2 |
| ARISTEIA CAPITAL, L.L.C. added | 63,530 | $481K | 0.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 51,616 | $471K | 0.2% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 60,825 | $461K | 0.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 37,181 | $457K | 0.2% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP added | 36,536 | $449K | 0.2% | 2026-Q1 |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 59,050 | $447K | 0.2% | 2026-Q1 |
| UBS Group AG added | 35,854 | $440K | 0.2% | 2026-Q1 |
| LPL Financial LLC added | 28,451 | $349K | 0.2% | 2026-Q1 |
| &PARTNERS | 25,500 | $313K | 0.1% | 2026-Q1 |
| Hyperion Capital Advisors LP | 25,400 | $312K | 0.1% | 2026-Q1 |
| Black Maple Capital Management LP added | 40,970 | $310K | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 31,900 | $291K | 0.1% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 38,437 | $291K | 0.1% | 2026-Q1 |
| Atom Investors LP added | 23,368 | $287K | 0.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 36,563 | $277K | 0.1% | 2026-Q1 |
| AlphaCentric Advisors LLC added | 21,239 | $261K | 0.1% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 34,287 | $260K | 0.1% | 2026-Q1 |
| Round Rock Advisors LLC | 20,961 | $257K | 0.1% | 2026-Q1 |
| GREENWOOD GEARHART LLC new | 20,500 | $252K | 0.1% | 2026-Q1 |
| BlackRock, Inc. added | 19,501 | $250K | 0.1% | 2026-Q2 |
| HOWARD FINANCIAL SERVICES, LTD. | 26,629 | $202K | 0.1% | 2026-Q1 |
| Marquette Asset Management, LLC | 15,000 | $184K | 0.1% | 2026-Q1 |
| StoneX Group Inc. trimmed | 15,000 | $184K | 0.1% | 2026-Q1 |
| XTX Topco Ltd added | 23,344 | $177K | 0.1% | 2026-Q1 |
| NORGES BANK | 19,431 | $165K | 0.1% | 2026-Q1 |
| Trexquant Investment LP trimmed | 21,191 | $160K | 0.1% | 2026-Q1 |
| Clear Harbor Asset Management, LLC | 13,000 | $160K | 0.1% | 2026-Q1 |
| Kingsview Wealth Management, LLC | 12,808 | $157K | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 12,755 | $157K | 0.1% | 2026-Q1 |
| CARY STREET PARTNERS FINANCIAL LLC | 12,450 | $153K | 0.1% | 2026-Q1 |
| MTM Investment Management, LLC added | 12,135 | $149K | 0.1% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 11,347 | $139K | 0.1% | 2026-Q1 |
| Cerity Partners LLC trimmed | 17,503 | $132K | 0.1% | 2026-Q1 |
| PCM Encore, LLC trimmed | 16,538 | $125K | 0.1% | 2026-Q1 |
| Wilkinson Global Asset Management LLC | 10,000 | $123K | 0.1% | 2026-Q1 |
| Roxbury Financial LLC added | 9,910 | $122K | 0.1% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 15,965 | $121K | 0.1% | 2026-Q1 |
| PDT Partners, LLC | 15,711 | $119K | 0.1% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 15,634 | $116K | 0.1% | 2026-Q1 |
| US BANCORP \DE\ | 9,000 | $111K | 0.0% | 2026-Q1 |
| VANGUARD GROUP INC added | 623,978 | $5M | 2.2% | 2025-Q4 stale |
| Nut Tree Capital Management, LP | 449,647 | $4M | 1.7% | 2025-Q1 stale |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 227,954 | $2M | 0.8% | 2025-Q3 stale |
| LOCUST WOOD CAPITAL ADVISERS, LLC trimmed | 138,600 | $2M | 0.7% | 2025-Q3 stale |
| NewEdge Wealth, LLC added | 156,821 | $1M | 0.6% | 2025-Q4 stale |
| BLUEFIN CAPITAL MANAGEMENT, LLC trimmed | 100,182 | $824K | 0.4% | 2025-Q4 stale |
| Nuveen, LLC new | 47,996 | $408K | 0.2% | 2025-Q1 stale |
| EVR Research LP trimmed | 40,000 | $329K | 0.1% | 2025-Q3 stale |
| Cove Street Capital, LLC added | 25,600 | $303K | 0.1% | 2025-Q3 stale |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 22,645 | $268K | 0.1% | 2025-Q3 stale |
| Y-Intercept (Hong Kong) Ltd new | 33,235 | $260K | 0.1% | 2025-Q2 stale |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 20,860 | $247K | 0.1% | 2025-Q3 stale |
| Centiva Capital, LP trimmed | 26,460 | $225K | 0.1% | 2025-Q1 stale |
| AQR CAPITAL MANAGEMENT LLC added | 28,541 | $223K | 0.1% | 2025-Q2 stale |
| MGO ONE SEVEN LLC trimmed | 17,917 | $210K | 0.1% | 2025-Q2 stale |
| MONOGRAPH WEALTH ADVISORS, LLC | 13,444 | $177K | 0.1% | 2025-Q1 stale |
| Walleye Capital LLC trimmed | 14,241 | $169K | 0.1% | 2025-Q4 stale |
| ALLIANCEBERNSTEIN L.P. | 19,004 | $162K | 0.1% | 2025-Q1 stale |
| Squarepoint Ops LLC added | 19,310 | $151K | 0.1% | 2025-Q2 stale |
| HRT FINANCIAL LP added | 17,769 | $138K | 0.1% | 2025-Q2 stale |
| Jump Financial, LLC trimmed | 16,662 | $137K | 0.1% | 2025-Q3 stale |
| Invesco Ltd. trimmed | 16,976 | $133K | 0.1% | 2025-Q2 stale |
| BANK OF MONTREAL /CAN/ new | 15,549 | $132K | 0.1% | 2025-Q1 stale |
| Point72 Asset Management, L.P. new | 15,262 | $126K | 0.1% | 2025-Q4 stale |
| Aster Capital Management (DIFC) Ltd new | 15,575 | $122K | 0.1% | 2025-Q2 stale |
| Bank of New York Mellon Corp trimmed | 14,631 | $120K | 0.1% | 2025-Q3 stale |
| Tilson Financial Group, Inc. | 14,151 | $120K | 0.1% | 2025-Q1 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.