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Star Equity Holdings, Inc.

STRR
Exchange
Nasdaq
Industry
Services-Help Supply Services
SEC CIK
0001210708

In the last 90 days, Star Equity Holdings, Inc. insiders filed 1 open-market purchase and 0 sales; 26 institutions reported holding it in 13F filings for Q2 2026, worth $10.2M in total; no superinvestor holds it.

Other share classesSTRRP

13F holders, Q3 2025

Institutional positions in Star Equity Holdings, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
23
−4 vs. Q2 2025
Shares held
1.01M
−460.4K (−31.4%) vs. Q2 2025
Total value
$11.2M
−$448.9K (−3.9%) vs. Q2 2025
New holders
1
3 more added
Sold out
5
15 more reduced

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting STRR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 23 institutions
Q1 2021: 26 institutionsQ2 2021: 29 institutionsQ3 2021: 27 institutionsQ4 2021: 30 institutionsQ1 2022: 35 institutionsQ2 2022: 37 institutionsQ3 2022: 32 institutionsQ4 2022: 37 institutionsQ1 2023: 35 institutionsQ2 2023: 38 institutionsQ3 2023: 33 institutionsQ4 2023: 36 institutionsQ1 2024: 34 institutionsQ2 2024: 25 institutionsQ3 2024: 23 institutionsQ4 2024: 29 institutionsQ1 2025: 24 institutionsQ2 2025: 27 institutionsQ3 2025: 23 institutionsQ4 2025: 23 institutionsQ1 2026: 25 institutionsQ2 2026: 26 institutions
Value heldQ3 2025: $11.2M
Q1 2021: $24.3MQ2 2021: $25.1MQ3 2021: $23.4MQ4 2021: $44.9MQ1 2022: $63.0MQ2 2022: $47.9MQ3 2022: $49.8MQ4 2022: $32.5MQ1 2023: $31.6MQ2 2023: $30.6MQ3 2023: $26.4MQ4 2023: $21.2MQ1 2024: $21.7MQ2 2024: $19.6MQ3 2024: $19.2MQ4 2024: $19.1MQ1 2025: $15.3MQ2 2025: $11.6MQ3 2025: $11.2MQ4 2025: $11.4MQ1 2026: $9.57MQ2 2026: $10.2M
Institutions holding STRR and their total value by quarter
QuarterHoldersValue
Q2 202626$10.2M
Q1 202625$9.57M
Q4 202523$11.4M
Q3 202523$11.2M
Q2 202527$11.6M
Q1 202524$15.3M
Q4 202429$19.1M
Q3 202423$19.2M
Q2 202425$19.6M
Q1 202434$21.7M
Q4 202336$21.2M
Q3 202333$26.4M
Q2 202338$30.6M
Q1 202335$31.6M
Q4 202237$32.5M
Q3 202232$49.8M
Q2 202237$47.9M
Q1 202235$63.0M
Q4 202130$44.9M
Q3 202127$23.4M
Q2 202129$25.1M
Q1 202126$24.3M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Star Equity Holdings, Inc.; share changes are against Q2 2025.

Institutions holding STRR in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Mink Brook Asset Management LLC314,454$3.50M2.36%+39,958+14.6%Added
Vanguard Group Inc149,018$1.66M0.00%−9,147−5.8%Reduced
Heartland Advisors Inc107,673$1.20M0.06%−99,421−48.0%Reduced
Renaissance Technologies LLC85,026$945.5K0.00%+1,744+2.1%Added
Dimensional Fund Advisors LP68,384$760.4K0.00%−3,323−4.6%Reduced
Perritt Capital Management Inc66,300$737.3K0.35%+3,350+5.3%Added
BlackRock, Inc.53,404$593.9K0.00%−108−0.2%Reduced
Manatuck Hill Partners, LLC42,600$473.7K0.16%−16,200−27.6%Reduced
Geode Capital Management, LLC30,995$344.8K0.00%−12,463−28.7%Reduced
RBF Capital, LLC28,112$312.6K0.01%00.0%Unchanged
Bridgeway Capital Management, LLC24,515$272.6K0.01%−8,223−25.1%Reduced
Hotchkis & Wiley Capital Management LLC11,920$132.6K0.00%−281,605−95.9%Reduced
Hollow Brook Wealth Management LLC11,085$123.3K0.03%−254−2.2%Reduced
Green Square Capital Advisors LLC10,916$92.9K0.01%00.0%Unchanged
Advisor Group Holdings, Inc.720$8.04K0.00%−480−40.0%Reduced
Royal Bank of Canada598$7.00K0.00%+598New
Tower Research Capital LLC (TRC)534$5.94K0.00%−2,057−79.4%Reduced
SBI Securities Co., Ltd.533$5.93K0.00%−1,788−77.0%Reduced
Federated Hermes, Inc.94$1.04K0.00%00.0%Unchanged
Bank of America Corp27$3000.00%−17−38.6%Reduced
Morgan Stanley5$560.00%−2,000−99.8%Reduced
Whittier Trust Co of Nevada Inc1$120.00%00.0%Unchanged
UBS Group AG1$110.00%−30,260−100.0%Reduced
Citadel Advisors LLC0$00.00%−23,582−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−15,067−100.0%Sold out
Allworth Financial LP0$00.00%−1−100.0%Sold out
Park Square Financial Group, LLC0$00.00%−1−100.0%Sold out
The PNC Financial Services Group, Inc.0$00.00%−4−100.0%Sold out