Star Equity Holdings, Inc. - Common Stock (STRR)

CUSIP: 443787205

Q1 2026 13F Holders as of 31 Mar 2026

Holder snapshot 6 signals
Share change
-13,977
SEC-reported price per share
$10.28
Number of holders
25
Value change
-$178,936
Number of buys
8
Number of sells
10
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
3,676,035

Security key

443787205

Report period

Q1 2026

Institutions

25

Top holders

10

Ownership snapshot

Top reported holders of STRR - Star Equity Holdings, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
HEARTLAND ADVISORS INC
Disclosed value leader
Mink Brook Asset Manageme...
Comparable rows
3/15
Latest evidence
31 Mar 2026
13D/G 13F 3/4/5 Lead comparable stake: 4.9% 12 rows are not safely comparable across share classes. 13D/G row: HEARTLAND ADVISORS INC Showing 1-6 of 15 holder rows.

Quick read

HEARTLAND ADVISORS INC leads the comparable SEC ownership view at 4.9%.

3 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens HEARTLAND ADVISORS INC's linked filing trail.
Comparable ownership Top 3
HEARTLAND ADVISORS INC 4.9%
VANGUARD GROUP INC 4.2%
HOTCHKIS & WILEY CAPITAL MANAGEME... 0.34%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
HEARTLAND ADVISORS INC
13D/G 13F
Company
4.9%
Reported 13D/G · 25 Aug 2025
$1,451,670
170,584 shares
$0 25 Aug 2025
VANGUARD GROUP INC
13F 13D/G
Company · The Vanguard Group
4.2%
Reported 13D/G · 30 Sep 2025
$1,728,337
153,630 shares
— 31 Dec 2025
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
13F 13D/G
Company · Hotchkis and Wiley Capital Management, LLC
0.34%
Reported 13D/G · 30 Sep 2025
$134,100
11,920 shares
— 31 Dec 2025
Mink Brook Asset Management LLC
13F
Company
13F
—
denominator unverified
$3,537,608
314,454 shares
— 31 Dec 2025
Jacob Zabkowicz
3/4/5
CEO Hudson Talent SolutionsLLC
—
denominator unverified
$1,918,956
180,863 shares
+$1,592 31 Mar 2026
Ian V Nash
3/4/5
Director
—
denominator unverified
$1,026,579
63,213 shares
— 17 Aug 2023
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
25
Shares
930,944
Rows available
25
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders
23
Q1 2026 holders
25
Holder diff
2
Investor Q4 2025 Shares Q1 2026 Shares Share Diff Share Chg % Q4 2025 value Q1 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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