Are insiders buying STRR stock?

Yes — 6 distinct insiders have bought STRR (Star Equity Holdings, Inc.) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was Jun 9, 2026.

How much STRR stock have insiders bought?

Insiders have bought a combined $4.5M of STRR across 35 open-market purchases, based on SEC Form 4 filings.

What is an insider cluster buy in STRR?

A cluster buy is two or more distinct Star Equity Holdings, Inc. insiders — officers, directors, or 10% owners — each buying STRR on the open market within a rolling window. STRR has 1 detected cluster buy to date.

Where does this STRR insider trading data come from?

Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.

STRR insider buying

1 cluster buy

Star Equity Holdings, Inc. · Industrials

When two or more insiders at Star Equity Holdings, Inc. buy STRR on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in STRR plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.

Clusters

Distinct insiders

Total bought

$4.5M

Market cap

$41.4M

Detected clusters

Sep 15, 2025 – Jun 8, 2026
Detected Jun 8, 2026
High conviction6 insiders
Total bought
$4.5M
Market cap
$41.4M

All notable open-market buys in STRR

Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.

Date	Insider	Shares	Price	Value	Filing
Jun 8, 2026	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	10,000	$11.45	$114.5K	SEC ↗
May 28, 2026	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	11,201	$11.81	$132.3K	SEC ↗
May 19, 2026	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	13,799	$10.09	$139.2K	SEC ↗
Mar 31, 2026	Zabkowicz Jacobcluster CEO Hudson Talent SolutionsLLC	150	$10.61	$1.6K	SEC ↗
Mar 27, 2026	Parks Louis A.cluster Director	1,500	$10.01	$15.0K	SEC ↗
Mar 27, 2026	Fruhbeis Todd Michaelcluster Director	500	$10.10	$5.1K	SEC ↗
Mar 27, 2026	Fruhbeis Todd Michaelcluster Director	300	$10.15	$3.0K	SEC ↗
Mar 26, 2026	Fruhbeis Todd Michaelcluster Director	500	$10.15	$5.1K	SEC ↗
Mar 26, 2026	Fruhbeis Todd Michaelcluster Director	300	$10.17	$3.1K	SEC ↗
Mar 25, 2026	Coleman Richard Kenneth Jr.cluster Chief Operating Officer	977	$9.95	$9.7K	SEC ↗
Mar 25, 2026	Fruhbeis Todd Michaelcluster Director	500	$9.76	$4.9K	SEC ↗
Mar 25, 2026	Fruhbeis Todd Michaelcluster Director	300	$9.82	$2.9K	SEC ↗
Dec 31, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	1,977	$11.09	$21.9K	SEC ↗
Dec 30, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	5,291	$11.26	$59.6K	SEC ↗
Dec 29, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	9,709	$11.25	$109.2K	SEC ↗
Dec 8, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	287,631	$10.43	$3.0M	SEC ↗
Nov 18, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	10,217	$10.42	$106.5K	SEC ↗
Sep 30, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	2,600	$11.20	$29.1K	SEC ↗
Sep 29, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	5,000	$11.31	$56.6K	SEC ↗
Sep 23, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	8,600	$11.47	$98.6K	SEC ↗
Sep 22, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	5,000	$11.49	$57.5K	SEC ↗
Sep 22, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	1,000	$11.51	$11.5K	SEC ↗
Sep 22, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	500	$11.51	$5.8K	SEC ↗
Sep 22, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	190	$11.36	$2.2K	SEC ↗
Sep 19, 2025	Eberwein Jeffrey E.cluster Director, Chief Executive Officer, 10% Owner	8,107	$11.45	$92.8K	SEC ↗

10 earlier buys hidden — sign in free to see the full history.

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STRR insider buying — FAQ

Are insiders buying STRR stock?: Yes — 6 distinct insiders have bought STRR (Star Equity Holdings, Inc.) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was Jun 9, 2026.
How much STRR stock have insiders bought?: Insiders have bought a combined $4.5M of STRR across 35 open-market purchases, based on SEC Form 4 filings.
What is an insider cluster buy in STRR?: A cluster buy is two or more distinct Star Equity Holdings, Inc. insiders — officers, directors, or 10% owners — each buying STRR on the open market within a rolling window. STRR has 1 detected cluster buy to date.
Where does this STRR insider trading data come from?: Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.

How we track insider buying in STRR

We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy STRR within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?

This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding STRR.