Star Equity Holdings, Inc. - Common Stock, par value $0.001 per share (STRR) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2019 to Q3 2025

Type / Class
Equity / Common Stock, par value $0.001 per share
Symbol
STRR on Nasdaq
Shares outstanding
3,812,063
Price per share
$11.00
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
1,006,915
Total reported value
$11,168,886
% of total 13F portfolios
0%
Share change
-327,044
Value change
-$3,636,324
Number of holders
23
Price from insider filings
$11.00
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Star Equity Holdings, Inc. - Common Stock, par value $0.001 per share (STRR) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Eberwein Jeffrey E. 27% +27% $10,599,288 +$2,958,020 1,033,069 +39% JEFFREY E. EBERWEIN 08 Dec 2025
Mink Brook Partners LP 9.2% -8% $3,496,728 +$444,333 314,454 +15% Mink Brook Capital GP LLC 30 Sep 2025
HEARTLAND ADVISORS INC 4.9% $1,451,670 170,584 HEARTLAND ADVISORS INC 25 Aug 2025
VANGUARD GROUP INC 4.2% $1,718,178 149,018 The Vanguard Group 30 Sep 2025
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.34% -94% $101,797 -$2,404,907 11,920 -96% Hotchkis and Wiley Capital Management, LLC 30 Sep 2025

As of 30 Sep 2025, 23 institutional investors reported holding 1,006,915 shares of Star Equity Holdings, Inc. - Common Stock, par value $0.001 per share (STRR). This represents 26% of the company’s total 3,812,063 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Star Equity Holdings, Inc. - Common Stock, par value $0.001 per share (STRR) together control 26% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Mink Brook Asset Management LLC 8.2% 314,454 +15% 2.4% $3,496,728
VANGUARD GROUP INC 3.9% 149,018 +6.8% 0% $1,657,080
HEARTLAND ADVISORS INC 2.8% 107,673 -48% 0.06% $1,197,324
RENAISSANCE TECHNOLOGIES LLC 2.2% 85,026 +18% 0% $945,489
DIMENSIONAL FUND ADVISORS LP 1.8% 68,384 -4.6% 0% $760,436
Perritt Capital Management Inc 1.7% 66,300 +5.3% 0.35% $737,256
BlackRock, Inc. 1.4% 53,404 +0.06% 0% $593,852
Manatuck Hill Partners, LLC 1.1% 42,600 -28% 0.16% $473,712
GEODE CAPITAL MANAGEMENT, LLC 0.81% 30,995 +15% 0% $344,763
RBF Capital, LLC 0.74% 28,112 0% 0.01% $312,605
BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.64% 24,515 +11% 0.01% $272,607
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC 0.31% 11,920 -96% 0% $132,550
Hollow Brook Wealth Management LLC 0.29% 11,085 -2.2% 0.03% $123,265
STEEL GROVE CAPITAL ADVISORS, LLC 0.29% 10,916 0% 0.01% $92,895
OSAIC HOLDINGS, INC. 0.02% 720 0% $8,035
ROYAL BANK OF CANADA 0.02% 598 0% $7,000
Tower Research Capital LLC (TRC) 0.01% 534 -37% 0% $5,938
SBI Securities Co., Ltd. 0.01% 533 0% $5,927
FEDERATED HERMES, INC. 0% 94 0% 0% $1,045
BANK OF AMERICA CORP /DE/ 0% 27 +12% 0% $300
MORGAN STANLEY 0% 5 0% 0% $56
WHITTIER TRUST CO OF NEVADA INC 0% 1 0% 0% $12
UBS Group AG 0% 1 0% 0% $11
Park Square Financial Group, LLC 0% 0 -100% $0
Allworth Financial LP 0% 0 -100% $0

Institutional Holders of Star Equity Holdings, Inc. - Common Stock, par value $0.001 per share (STRR) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q3 1,006,915 $11,168,886 -$3,636,324 $11.12 23
2025 Q2 1,333,959 $11,352,029 -$706,155 $8.51 22
2025 Q1 1,416,250 $15,111,478 -$289,997 $10.67 20
2024 Q4 1,439,624 $18,787,204 +$50,334 $13.05 24
2024 Q3 1,174,723 $18,819,200 +$284,030 $16.02 21
2024 Q2 1,156,983 $19,217,487 -$719,541 $16.61 23
2024 Q1 1,199,390 $21,168,814 -$1,960,056 $17.65 26
2023 Q4 1,327,005 $20,588,229 +$243,671 $15.49 28
2023 Q3 1,354,483 $25,817,450 -$689,358 $18.85 27
2023 Q2 1,377,247 $30,051,677 -$452,456 $21.53 27
2023 Q1 1,398,010 $31,153,625 -$358,290 $22.27 28
2022 Q4 1,411,642 $31,943,660 -$1,885,816 $22.63 26
2022 Q3 1,463,438 $49,200,000 -$1,350,835 $33.62 23
2022 Q2 1,506,995 $47,319,128 -$766,488 $31.40 28
2022 Q1 1,531,118 $62,264,000 +$959,701 $40.67 22
2021 Q4 1,507,594 $43,597,000 +$3,475,818 $28.99 19
2021 Q3 1,389,917 $22,114,000 +$794,291 $15.91 16
2021 Q2 1,339,795 $23,574,000 -$558,973 $17.65 17
2021 Q1 1,372,029 $22,777,000 +$384,984 $16.60 17
2020 Q4 1,348,851 $14,164,000 -$141,704 $10.50 15
2020 Q3 1,310,104 $12,660,000 -$207,422 $9.67 14
2020 Q2 1,333,234 $11,704,000 -$445,955 $8.79 17
2020 Q1 1,414,025 $12,090,000 -$3,269,090 $8.55 17
2019 Q4 1,689,141 $20,184,000 +$143,965 $11.95 20
2019 Q3 1,677,019 $20,549,000 +$10,632 $12.25 19
2019 Q2 1,680,861 $20,926,000 +$20,926,000 $12.45 17