New Positions
3 managers initiated
Top five by reported value
- Sentinus, LLC$745.9K
- Cable Car Capital, LP$644.5K
- DRW Securities, LLC$268.4K
Star Equity Holdings Inc NASDAQ NMS - GLOBAL MARKET:STRRP
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
3 new5 added15 reduced3 exited
Total Institutional Holders
23
as of 2025-12-31
Top Holder
Mink Brook Asset Management LLC
$3.5M
Largest QoQ Increase
Sentinus, LLC
+66,300 sh
Largest QoQ Decrease
HEARTLAND ADVISORS INC
-95,212 sh
New Positions(3)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Sentinus, LLC | 66,300 | +66,300 | $745.9K | +$745.9K | — |
| Cable Car Capital, LP | 57,290 | +57,290 | $644.5K | +$644.5K | — |
| DRW Securities, LLC | 23,860 | +23,860 | $268.4K | +$268.4K | — |
Added To(5)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| RBF Capital, LLC | 56,224 | +28,112 | $632.5K | +$319.9K | 100.0% |
| VANGUARD GROUP INC | 153,630 | +4,612 | $1.7M | +$71.3K | 3.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 31,238 | +243 | $351.5K | +$6.8K | 0.8% |
| UBS Group AG | 121 | +120 | $1.4K | +$1.4K | 12000.0% |
| BANK OF AMERICA CORP /DE/ | 28 | +1 | $315 | +$15 | 3.7% |
Reduced(15)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| HEARTLAND ADVISORS INC | 12,461 | -95,212 | $140.2K | -$1.1M | -88.4% |
| DIMENSIONAL FUND ADVISORS LP | 55,883 | -12,501 | $628.6K | -$131.8K | -18.3% |
| Manatuck Hill Partners, LLC | 31,800 | -10,800 | $357.8K | -$116.0K | -25.4% |
| RENAISSANCE TECHNOLOGIES LLC | 78,726 | -6,300 | $885.7K | -$59.8K | -7.4% |
| Mink Brook Asset Management LLC | 314,454 | 0 | $3.5M | +$40.9K | 0.0% |
| PERRITT CAPITAL MANAGEMENT INC | 66,300 | 0 | $745.9K | +$8.6K | 0.0% |
| BlackRock, Inc. | 53,404 | 0 | $600.8K | +$6.9K | 0.0% |
| Royal Bank of Canada | 140 | -458 | $2.0K | -$5.0K | -76.6% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 24,515 | 0 | $275.8K | +$3.2K | 0.0% |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 11,920 | 0 | $134.1K | +$1.6K | 0.0% |
| Tower Research Capital LLC (TRC) | 416 | -118 | $4.7K | -$1.3K | -22.1% |
| FEDERATED HERMES, INC. | 84 | -10 | $945 | -$100 | -10.6% |
| SBI Securities Co., Ltd. | 533 | 0 | $6.0K | +$69 | 0.0% |
| WHITTIER TRUST CO OF NEVADA INC | 1 | 0 | $11 | -$1 | 0.0% |
| MORGAN STANLEY | 5 | 0 | $56 | $0 | 0.0% |
Sold Out(3)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Hollow Brook Wealth Management LLC | 0 | -11,085 | $0 | -$123.3K | — |
| GREEN SQUARE CAPITAL ADVISORS LLC | 0 | -10,916 | $0 | -$92.9K | — |
| ADVISOR GROUP HOLDINGS, INC. | 0 | -720 | $0 | -$8.0K | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| Mink Brook Asset Management LLC | 314,454 | $3.5M | 0 | 0.0% |
| VANGUARD GROUP INC | 153,630 | $1.7M | +4,612 | 3.1% |
| RENAISSANCE TECHNOLOGIES LLC | 78,726 | $885.7K | -6,300 | -7.4% |
| PERRITT CAPITAL MANAGEMENT INC | 66,300 | $745.9K | 0 | 0.0% |
| Sentinus, LLC | 66,300 | $745.9K | +66,300 | — |
| Cable Car Capital, LP | 57,290 | $644.5K | +57,290 | — |
| RBF Capital, LLC | 56,224 | $632.5K | +28,112 | 100.0% |
| DIMENSIONAL FUND ADVISORS LP | 55,883 | $628.6K | -12,501 | -18.3% |
| BlackRock, Inc. | 53,404 | $600.8K | 0 | 0.0% |
| Manatuck Hill Partners, LLC | 31,800 | $357.8K | -10,800 | -25.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 31,238 | $351.5K | +243 | 0.8% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 24,515 | $275.8K | 0 | 0.0% |
| DRW Securities, LLC | 23,860 | $268.4K | +23,860 | — |
| HEARTLAND ADVISORS INC | 12,461 | $140.2K | -95,212 | -88.4% |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 11,920 | $134.1K | 0 | 0.0% |
| SBI Securities Co., Ltd. | 533 | $6.0K | 0 | 0.0% |
| Tower Research Capital LLC (TRC) | 416 | $4.7K | -118 | -22.1% |
| Royal Bank of Canada | 140 | $2.0K | -458 | -76.6% |
| UBS Group AG | 121 | $1.4K | +120 | 12000.0% |
| FEDERATED HERMES, INC. | 84 | $945 | -10 | -10.6% |
New & Closed Positions this quarter
Closed Positions
3 managers exited
Top five by prior-quarter value
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for STRRP against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.