$STRR

$10.00 +$0.11 (1.11%) Close

$STRR Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 3.7M shares outstanding

Who owns STRR?

By type of holder

Institutions 25.9% Insiders 47.8% Everyone else 26.3%

Concentration Top 10 holders own 58.8%

Jeffrey E. Eberwein 31.2% · Mink Brook Asset Management LLC 8.6%

Institutional ownership

25.9%

+0.7 pts vs last qtr

Institutional holders

+1 vs last qtr

Net shares bought

+24.4K

by institutions in Q2 2026

New / sold out

4 / 3

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Axxion S.A. NEW +23.5K
GatePass Capital, LLC NEW +11.2K

Biggest sellers in Q2 2026

Bridgeway Capital Management, LLC −14.5K
Manatuck Hill Partners, LLC −13.9K

Who is planning to sell?

Notices of proposed sale, last 12 months

$214K

1 notice from 1 person

Shares covered

23.0K

0.62% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Jeffrey E. Eberwein Chief executive officer $214K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

−3.6%

−0.41% a year

Each share's claim on the business

+3.7%

grew without buying or selling a share

Spent on buybacks vs paid in stock

$20.5M vs $15M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years44% 3–5 years0% 1–3 years34% Under 1 year22%

Quarterly turnover

4.7%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting STRR on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
MB Mink Brook Asset Management LLC	316.1K	8.57%	Unchanged	2024	1.5%
Shares held by quarter Peak holding316.1K (Q1'26) Change over 8 quarters+316.1K Share of the company8.570% Mink Brook Asset Management LLC's full portfolio →
VC Vanguard Capital Management LLC	134.6K	3.65%	−118 (−0.1%)	≤2021	0.0%
Shares held by quarter Peak holding134.7K (Q1'26) Change over 8 quarters+134.6K Share of the company3.650% Vanguard Capital Management LLC's full portfolio →

Mink Brook Asset Management LLC

316.1K

% of company

8.57%

Change vs last qtr

Unchanged

Held since

2024

Vanguard Capital Management LLC

134.6K

% of company

3.65%

Change vs last qtr

−118 (−0.1%)

Held since

≤2021

26 more super investors behind a free account

See every manager holding Star Equity Holdings Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting STRR on Form N-PORT; together they hold 8.3% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$1.12M	105.4K	2.86%	0.00%	June 30, 2026
NS North Star Micro Cap Fund Northern Lights Fund Trust II	$643K	55.0K	1.49%	0.35%	May 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$1.12M

% of company

2.86%

% of the fund

0.00%

As of

June 30, 2026

North Star Micro Cap Fund

Northern Lights Fund Trust II

Position value

$643K

% of company

1.49%

% of the fund

0.35%

As of

May 31, 2026

16 more funds behind a free account

See every fund holding Star Equity Holdings Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
JE Jeffrey E. Eberwein 5%+ holder 13D · 30.7%	1.1M	31.15%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company31.150% Disclosed stake13D · 30.7% View the 13D/G filing →
ZJ Zabkowicz Jacob Insider	180.9K	4.90%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company4.900% Zabkowicz Jacob's insider activity →

Jeffrey E. Eberwein

5%+ holder13D · 30.7%

1.1M

% of company

31.15%

Change vs last qtr

—

Held since

—

Zabkowicz Jacob

Insider

180.9K

% of company

4.90%

Change vs last qtr

—

Held since

—

10 more holders behind a free account

See every insider and 5%+ holder of Star Equity Holdings Inc.

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