STRR · Star Equity Holdings, Inc.

$10.62 +0.10 (+0.95%) At close · Sep 4

Market Cap

$38.81M

3.69M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 26

Total Value: $10,183,961

Total Shares: 955,345

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 26 13F filers · Δ vs Mar 31, 2026

Top Holder

33.1%

−0.9 pts

Top 5

73.0%

−0.8 pts

Top 10

91.7%

−0.8 pts

HHI

1,614

Moderately concentrated−66

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +1

Institutional value: +6.4%

Shares held: +2.6%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega BlackRock, Inc.	+8,012	61,416
Mega GEODE CAPITAL MANAGEMENT, LLC	+6,451	30,835
Mid Cable Car Capital, LP	+4,501	104,543
Mid SBI Securities Co., Ltd.	+725	1,258
Mega UBS Group AG	+523	524

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC	−14,496	10,019
Small Manatuck Hill Partners, LLC	−13,864	12,636
Large RENAISSANCE TECHNOLOGIES LLC	−500	80,426
Small Rothschild Wealth LLC	−500	10,800
Mega VANGUARD CAPITAL MANAGEMENT LLC	−118	134,567

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid Axxion S.A.	23,542	$250,957
Small GatePass Capital, LLC	11,200	$119,392
Large US BANCORP \DE\	1,003	$10,691
Mega BARCLAYS PLC	12	$127

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Large CWM, LLC	2,120	$21,793
Large FEDERATED HERMES, INC.	78	$801
Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	3	$30

Filter: New 4 Increased 6 Reduced 6 Sold out 3 Unchanged 10

Showing 26 of 26

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Mink Brook Asset Management LLC

$3,370,041

33.09%

316,139

VANGUARD CAPITAL MANAGEMENT LLC

$1,434,484

14.09%

134,567

Cable Car Capital, LP

$1,114,428

10.94%

104,543

RENAISSANCE TECHNOLOGIES LLC

$857,341

8.42%

80,426

BlackRock, Inc.

$654,693

6.43%

61,416

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Investment Management, LLC	468	$4,988	0.8%	Sole
BlackRock Fund Advisors	7,538	$80,355	12.3%	Sole
BlackRock Institutional Trust Company, N.A.	53,410	$569,350	87.0%	Sole

North Star Investment Management Corp.

$586,300

5.76%

55,000

DIMENSIONAL FUND ADVISORS LP

$446,237

4.38%

41,861

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	135	$1,439	0.3%	Defined
DFA Australia Ltd.	1	$10	0.0%	Defined
Dimensional Ireland Ltd	2,682	$28,590	6.4%	Defined
Held directly	39,043	$416,198	93.3%	Sole

GEODE CAPITAL MANAGEMENT, LLC

$328,700

3.23%

30,835

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	6,703	$71,453	21.7%	Defined
Held directly	24,132	$257,247	78.3%	Defined

RBF Capital, LLC

$299,673

2.94%

28,112

Axxion S.A.

$250,957

2.46%

23,542

VANGUARD FIDUCIARY TRUST CO

$191,954

1.88%

18,007

Manatuck Hill Partners, LLC

$134,699

1.32%

12,636

HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC

$127,067

1.25%

11,920

GatePass Capital, LLC

$119,392

1.17%

11,200

Rothschild Wealth LLC

$115,128

1.13%

10,800

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$106,802

1.05%

10,019

SBI Securities Co., Ltd.

$13,410

0.13%

1,258

Vanguard Global Advisers, LLC

$11,256

0.11%

1,056

US BANCORP \DE\

$10,691

0.10%

1,003

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
US BANK NATIONAL ASSOCIATION	1,003	$10,691	100.0%	Defined

UBS Group AG

$5,585

0.05%

524

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	1	$10	0.2%	Defined
UBS Securities LLC	523	$5,575	99.8%	Defined

Tower Research Capital LLC (TRC)

$3,421

0.03%

321

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	321	$3,421	100.0%	Defined

ROYAL BANK OF CANADA

$1,492

0.01%

140

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	140	$1,492	100.0%	Defined

BARCLAYS PLC

$127

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS CAPITAL INC.	12	$127	100.0%	Defined

MORGAN STANLEY

$63

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY SMITH BARNEY LLC	1	$10	15.9%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	5	$53	84.1%	Defined

CITIGROUP INC

$10

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	1	$10	100.0%	Defined

WHITTIER TRUST CO OF NEVADA INC

$10

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
FEDERATED MDTA LLC	78	$801	100.0%	Defined

Key facts CIK 1210708 CUSIP 443787205 13F (30d) 21 filings 21 filers Visit website Investor relations