STRR: Star Equity Holdings, Inc. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 16 sales totaling $145K in the last 180 days.
Insider sales
| Trade date | Insider | Role | Value | 10b5-1 plan |
|---|---|---|---|---|
| 2026-10-22 | Eberwein Jeffrey E. | CEO | $7K | yes |
| 2026-10-21 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-20 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-19 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-16 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-15 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-14 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-13 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-12 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-09 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-08 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-07 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-06 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-05 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-02 | Eberwein Jeffrey E. | CEO | $9K | yes |
| 2026-10-01 | Eberwein Jeffrey E. | CEO | $9K | yes |
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-10-28 | 13G amendment | Mink Brook Partners LP | 8.60% | SEC |
Institutional ownership (Q2 2026)
26 institutions reported holding $10.18M of Star Equity Holdings, Inc. on Form 13F (25 the quarter before). 3 opened a new position and 2 sold out. Shares held by institutions: +3%.
| Largest holders | Shares | Value |
|---|---|---|
| Mink Brook Asset Management LLC | 316,139 | $3.37M |
| VANGUARD CAPITAL MANAGEMENT LLC | 134,567 | $1.43M |
| Cable Car Capital, LP | 104,543 | $1.11M |
| RENAISSANCE TECHNOLOGIES LLC | 80,426 | $857K |
| BlackRock, Inc. | 61,416 | $655K |
| North Star Investment Management Corp. | 55,000 | $586K |
| DIMENSIONAL FUND ADVISORS LP | 41,861 | $446K |
| GEODE CAPITAL MANAGEMENT, LLC | 30,835 | $329K |
| RBF Capital, LLC | 28,112 | $300K |
| Axxion S.A. | 23,542 | $251K |
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