Who owns Star Equity Holdings, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of STRR from SEC Form 13F filings across 27 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 27 institutions disclosed 955,347 shares of Star Equity Holdings, Inc. worth $10.2M — about 25.8% of shares outstanding; the largest disclosed holder is Mink Brook Asset Management LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
27
13F holders
$10.2M
value, 2026 filers
25.8%
of shares outstanding (955,347 sh)
5
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of STRR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Mink Brook Asset Management LLC | 316,139 | $3.4M | 1.5% | 8.5% | 0.0% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 134,567 | $1.4M | 0.0% | 3.6% | -0.1% |
| 3 | Cable Car Capital, LP | 104,543 | $1.1M | 0.0% | 2.8% | +4.5% |
| 4 | RENAISSANCE TECHNOLOGIES LLC | 80,426 | $857,341 | 0.0% | 2.2% | -0.6% |
| 5 | BlackRock, Inc. | 61,416 | $654,695 | 0.0% | 1.7% | +15.0% |
| 6 | North Star Investment Management Corp. | 55,000 | $586,300 | 0.0% | 1.5% | 0.0% |
| 7 | DIMENSIONAL FUND ADVISORS LP | 41,861 | $446,280 | 0.0% | 1.1% | 0.0% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 30,835 | $328,802 | 0.0% | 0.8% | +26.5% |
| 9 | RBF Capital, LLC | 28,112 | $299,674 | 0.0% | 0.8% | 0.0% |
| 10 | Axxion S.A.NEW | 23,542 | $250,958 | 0.0% | 0.6% | new |
| 11 | VANGUARD FIDUCIARY TRUST CO | 18,007 | $191,955 | 0.0% | 0.5% | +0.7% |
| 12 | Manatuck Hill Partners, LLC | 12,636 | $134,700 | 0.0% | 0.3% | -52.3% |
| 13 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 11,920 | $127,067 | 0.0% | 0.3% | 0.0% |
| 14 | GatePass Capital, LLCNEW | 11,200 | $119,392 | 0.0% | 0.3% | new |
| 15 | Rothschild Wealth LLC | 10,800 | $115,128 | 0.0% | 0.3% | -4.4% |
| 16 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 10,019 | $106,803 | 0.0% | 0.3% | -59.1% |
| 17 | SBI Securities Co., Ltd. | 1,258 | $13,410 | 0.0% | 0% | +136.0% |
| 18 | Vanguard Global Advisers, LLC | 1,056 | $11,257 | 0.0% | 0% | 0.0% |
| 19 | US BANCORP \DE\NEW | 1,003 | $10,692 | 0.0% | 0% | new |
| 20 | UBS Group AG | 524 | $5,586 | 0.0% | 0% | +52300.0% |
| 21 | Tower Research Capital LLC (TRC) | 321 | $3,422 | 0.0% | 0% | -2.1% |
| 22 | ROYAL BANK OF CANADA | 140 | $1,000 | 0.0% | 0% | 0.0% |
| 23 | BARCLAYS PLCNEW | 12 | $128 | 0.0% | 0% | new |
| 24 | MORGAN STANLEY | 6 | $65 | 0.0% | 0% | 0.0% |
| 25 | MERCER GLOBAL ADVISORS INC /ADVNEW | 2 | $21 | 0.0% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.