Star Equity HoldingsSTRR
13F holders, Q3 2025 (September 30)23holders +1
3new positions
2sold out
1famous investor
$11.09avg. 13F price*
At the end of Q3 2025, 23 institutions reported holding Star Equity Holdings Inc. (STRR) in their 13F filings, up 1 from Q2 2025. 3 opened new positions and 2 sold out. The largest holders were Mink Brook Asset Management LLC ($3.5M), Vanguard Group Inc. ($1.7M) and Heartland Advisors Inc. ($1.2M). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Star Equity Holdings Inc.
- CUSIP
- 443787205
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 3 | $21K |
| Exits | 2 | $18 |
All 13F filers, Q2 2025 → Q3 2025: 74,076 shares bought and 401,120 shares sold, net −327,044 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 23 holders
| Mink Brook Asset Management LLC | 2.36% | Add +14.6% | 314,454 | $3.5M |
| Vanguard Group Inc. | 0.00% | Add +6.8% | 149,018 | $1.7M |
| Heartland Advisors Inc. | 0.06% | Reduce -48.0% | 107,673 | $1.2M |
| Renaissance Technologies | 0.00% | Add +17.7% | 85,026 | $945K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -4.6% | 68,384 | $760K |
| Perritt Capital Management Inc | 0.35% | Add +5.3% | 66,300 | $737K |
| BlackRock, Inc. | 0.00% | Add +0.1% | 53,404 | $594K |
| Manatuck Hill Partners, LLC | 0.16% | Reduce -27.6% | 42,600 | $474K |
| Geode Capital Management, LLC | 0.00% | Add +15.3% | 30,995 | $345K |
| RBF Capital, LLC | 0.01% | No change | 28,112 | $313K |
| Bridgeway Capital Management, LLC | 0.01% | Add +11.1% | 24,515 | $273K |
| Hotchkis & Wiley Capital Management LLC | 0.00% | Reduce -95.9% | 11,920 | $133K |
| Hollow Brook Wealth Management LLC | 0.03% | Reduce -2.2% | 11,085 | $123K |
| Steel Grove Capital Advisors, LLC | 0.01% | No change | 10,916 | $93K |
| Osaic Holdings, Inc. | 0.00% | New | 720 | $8K |
| Royal Bank of Canada | 0.00% | New | 598 | $7K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -37.1% | 534 | $6K |
| SBI Securities Co., Ltd. | 0.00% | New | 533 | $6K |
| Federated Hermes, Inc. | 0.00% | No change | 94 | $1K |
| Bank of America Corp. | 0.00% | Add +12.5% | 27 | $300 |
| Morgan Stanley | 0.00% | No change | 5 | $56 |
| Whittier Trust Co. of Nevada Inc. | 0.00% | No change | 1 | $12 |
| UBS Group AG | 0.00% | No change | 1 | $11 |
"% of holder's portfolio" is STRR's weight in each manager's 13F, not the share of Star Equity Holdings Inc. the manager owns.