Star Equity Holdings, Inc. (STRR) — Institutional Holders, Q2 2026

26 institutional investment managers reported a STRR position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $10.2M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

STRR in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

4

Added to

5

Trimmed

6

Sold out

2

Biggest buyers

  1. GatePass CapitalNew · +11,200 sh+$119.4K
  2. BlackRockAdded · +8,012 sh+$85.4K
  3. GEODE CAPITAL MANAGEMENTAdded · +6,451 sh+$68.8K
  4. Cable Car CapitalAdded · +4,501 sh+$48.0K
  5. US BANCORP \DE\New · +1,003 sh+$10.7K

Biggest sellers

  1. BRIDGEWAY CAPITAL MANAGEMENTTrimmed · -14,496 sh-$154.5K
  2. Manatuck Hill PartnersTrimmed · -13,864 sh-$147.8K
  3. RENAISSANCE TECHNOLOGIESTrimmed · -500 sh-$5.3K
  4. SentinusTrimmed · -500 sh-$5.3K
  5. VANGUARD CAPITAL MANAGEMENTTrimmed · -118 sh-$1.3K

STRR 13F holders ranked 1–26 of 26

Institutional investors reporting a position in Star Equity Holdings, Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
InstitutionValueQoQ
Mink Brook Asset Management#1 · 316,139 sh$3.4M0.0%
VANGUARD CAPITAL MANAGEMENT#2 · 134,567 sh$1.4M-0.1%
Cable Car Capital#3 · 104,543 sh$1.1M+4.5%
RENAISSANCE TECHNOLOGIES#4 · 80,426 sh$857.3K-0.6%
BlackRock#5 · 61,416 sh$654.7K+15.0%
North Star Investment Management#6 · 55,000 sh$586.3K0.0%
DIMENSIONAL FUND ADVISORS#7 · 41,861 sh$446.3K0.0%
GEODE CAPITAL MANAGEMENT#8 · 30,835 sh$328.8K+26.5%
RBF Capital#9 · 28,112 sh$299.7K0.0%
Axxion S.A.#10 · 23,542 sh$251.0K—
VANGUARD FIDUCIARY#11 · 18,007 sh$192.0K+0.7%
Manatuck Hill Partners#12 · 12,636 sh$134.7K-52.3%
HOTCHKIS & WILEY CAPITAL MANAGEMENT#13 · 11,920 sh$127.1K0.0%
GatePass Capital#14 · 11,200 sh$119.4KNew
Sentinus#15 · 10,800 sh$115.1K-4.4%
BRIDGEWAY CAPITAL MANAGEMENT#16 · 10,019 sh$106.8K-59.1%
SBI Securities , Ltd.#17 · 1,258 sh$13.4K+136.0%
Vanguard Global Advisers#18 · 1,056 sh$11.3K0.0%
US BANCORP \DE\#19 · 1,003 sh$10.7KNew
UBS Group AG#20 · 524 sh$5.6KNew
Tower Research Capital (TRC)#21 · 321 sh$3.4K-2.1%
ROYAL BANK OF CANADA#22 · 140 sh$1.0K0.0%
BARCLAYS PLC#23 · 12 sh$128.00New
MORGAN STANLEY#24 · 6 sh$65.000.0%
WHITTIER OF NEVADA#25 · 1 sh$11.000.0%
CITIGROUP#26 · 1 sh$11.000.0%

Funds that sold out of STRR in Q2 2026 (2)

Held STRR at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held STRR in Q1 2026 and reported no position in Q2 2026.
InstitutionValue in Q1 2026
FEDERATED HERMES78 sh$802.00
NORTHWESTERN MUTUAL WEALTH MANAGEMENT3 sh$31.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.