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No insider purchase over the last 90 days. The latest was filed 29 Jun 2026.
Star Equity Holdings, Inc.: what insiders have been doing
Star Equity Holdings, Inc. belongs to the Industry sector. Filings by its managers are published through SEC (Form 4). 4 insiders have disclosed 29 filings since 18 October 2025.
Not one open-market sale was filed. On the buying side, 3 insiders reported 23 purchases totalling €497k. The totals do not cover 6 filings with an undisclosed amount. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. Those buying include 2 senior executives and 1 chief executive. Eberwein Jeffrey E. filed the largest purchase, €120k, on 21 May 2026.
In the case of 23 purchases, another manager of the company was buying within the same 30 days. Purchases made close together by different insiders form what is called a cluster. The latest purchase dates back some time: it was published 111 days ago, on 29 June 2026. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. Section 16 rules allow two business days to file each Form 4.
With 29 filings in twelve months, the company is more active than the median of 22 filings across the 5,458 companies we follow on the same exchange. Over the whole record (from 2021), the tally stands at 88 purchases and 11 sales. In its latest annual report filed with the SEC (10-K, fiscal year ended 31 December 2025), the company reported revenue of 172.2 m USD and net income of -5.9 m USD.
Elsewhere in the same sector, our signals recently picked up insider purchases at Tennant Co and Butler National Corp. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Insider Decl.
177
Thresholds
n/a
Buy Volume
€5M
88 ops. · all time
Sell Volume
€145,719
11 ops. · all time
Who traded when
BuySaleJeffrey E. Eberwein20 buys
Todd Michael Fruhbeis2 buys
Mimi K. Drake1 buy
Since the insiders bought
- -4.5%Entry 9.70 · Close at T+90 9.26
- -2.1%Entry 9.70 · Close at T+90 9.50
- -2.8%Entry 9.85 · Close at T+90 9.57
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Financial data
as of FY 2024FY ended December 2024 · cache
Income statement
Revenue124.9M
Gross profit71.2M57% margin
Net income-5.3M-4.2% margin
Last declaration on 29 June 2026
Declarations177 total
5,000 sharesCommon Stock.SEC:0001548312-26-000038:0
Canonical exit: 23 Sept 2026 (T+90)
5,000 sharesCommon Stock.SEC:0001548312-26-000038:1
Canonical exit: 27 Sept 2026 (T+90)
234 sharesCommon Stock.SEC:0001548312-26-000035:0
Canonical exit: 16 Sept 2026 (T+90)
4,766 sharesCommon Stock.SEC:0001548312-26-000035:1
Canonical exit: 20 Sept 2026 (T+90)
1,000 shares@ US$11.65100.0% of flowCommon StockSEC:0001767481-26-000004:0
Canonical exit: 3 Sept 2026 (T+90)
10,000 sharesCommon Stock.SEC:0001548312-26-000029:1
Canonical exit: 6 Sept 2026 (T+90)
2,849 sharesCommon Stock.SEC:0001548312-26-000029:2
Canonical exit: 7 Sept 2026 (T+90)
3,443 shares@ US$11.510.7% of flowCommon Stock.SEC:0001548312-26-000029:0
Canonical exit: 3 Sept 2026 (T+90)
1,430 shares@ US$11.510.3% of flowCommon Stock.SEC:0001548312-26-000027:2
Canonical exit: 2 Sept 2026 (T+90)
4,881 shares@ US$11.611.0% of flowCommon Stock.SEC:0001548312-26-000027:0
Canonical exit: 31 Aug 2026 (T+90)
101 shares@ US$11.510.0% of flowCommon Stock.SEC:0001548312-26-000027:1
Canonical exit: 1 Sept 2026 (T+90)
310 shares@ US$11.690.1% of flowCommon StockSEC:0001548312-26-000023:0
Canonical exit: 26 Aug 2026 (T+90)
11,201 shares@ US$11.812.4% of flowCommon Stock.SEC:0001548312-26-000023:1
Canonical exit: 26 Aug 2026 (T+90)
3,663 shares@ US$11.610.8% of flowCommon Stock.SEC:0001548312-26-000023:2
Canonical exit: 27 Aug 2026 (T+90)
1,482 shares@ US$11.590.3% of flowCommon Stock.SEC:0001548312-26-000023:3
Canonical exit: 30 Aug 2026 (T+90)
763 shares@ US$11.62100.0% of flowCommon StockSEC:0001779155-26-000004:0
5,504 shares0Common StockSEC:0001767481-26-000002:0
5,504 shares0Common StockSEC:0002029470-26-000006:0
694 shares@ US$11.060.1% of flowCommon Stock.SEC:0001548312-26-000021:0
Canonical exit: 20 Aug 2026 (T+90)
2,414 shares@ US$11.510.5% of flowCommon Stock.SEC:0001548312-26-000021:1
Canonical exit: 24 Aug 2026 (T+90)
2,288 shares@ US$11.760.5% of flowCommon Stock.SEC:0001548312-26-000021:2
Canonical exit: 25 Aug 2026 (T+90)
13,799 shares@ US$10.092.5% of flowCommon Stock.SEC:0001548312-26-000019:1
Canonical exit: 17 Aug 2026 (T+90)
406 shares@ US$10.180.1% of flowCommon Stock.SEC:0001548312-26-000019:2
Canonical exit: 18 Aug 2026 (T+90)
4,198 shares@ US$10.900.8% of flowCommon Stock.SEC:0001548312-26-000019:3
Canonical exit: 19 Aug 2026 (T+90)
1 shares@ US$10.250.2% of flowCommon StockSEC:0002029470-26-000004:1
Canonical exit: 18 Aug 2026 (T+90)
25 of 177 declarations
About Star Equity Holdings, Inc.
Star Equity Holdings, Inc. is a diversified holding company listed on the U.S. Nasdaq market (NASDAQ: STRR and STRRP), with its corporate headquarters in Old Greenwich, Connecticut, United States. For French-speaking investors, the name sits in the category of a small-cap multi-business platform rather than a classic single-line industrial stock: the company combines operating businesses with an investments and asset-management arm, and it seeks to create value through acquisitions, operational improvement, and disciplined capital allocation. Star’s modern structure reflects a longer corporate history under its former name, Digirad Corporation. The company was incorporated in Delaware in 1997 and changed its name to Star Equity Holdings, Inc. effective January 1, 2021. ([sec.gov](https://www.sec.gov/Archives/edgar/data/707388/000070738823000016/digirad-20221231.htm?utm_source=openai))
Today, Star Equity is organized around four divisions: Building Solutions, Business Services, Energy Services, and Investments. Building Solutions is the core industrial platform and includes three businesses: modular building manufacturing; structural wall panel and wood foundation manufacturing, including building supply distribution; and glue-laminated timber (glulam) column, beam, and truss manufacturing. Business Services operates through Hudson Talent Solutions and provides talent acquisition and workforce strategy services across the Americas, EMEA, and APAC. Energy Services focuses on the rental, sale, and repair of downhole tools used in oil and gas, geothermal, mining, and water-well markets. The Investments division manages and finances the company’s real estate assets and its positions in private and public companies. ([starequity.com](https://www.starequity.com/))
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From a competitive standpoint, Star Equity should be viewed as a niche diversified industrial holding company. Its investment case is not driven by one dominant product franchise, but by the ability of management to integrate acquisitions, improve operating efficiency, and allocate capital between businesses with very different growth profiles and cyclicality. That makes the story potentially interesting, but also more complex than a pure-play manufacturer or service provider. The group’s geographic footprint is primarily U.S.-based at the operating level, while Business Services adds global service exposure. Star’s Energy Services platform, for example, is anchored in local operating hubs in Texas, Wyoming, and Utah through Alliance Drilling Tools, which Star acquired in March 2025. ADT was founded in 2009 and brought immediate scale to the group’s energy-oriented activities. ([starequity.com](https://www.starequity.com/news-releases/news-release-details/star-equity-holdings-acquires-alliance-drilling-tools))
Recent corporate developments matter materially. In 2025, Star completed the acquisition of Alliance Drilling Tools, expanding into Energy Services. Later in August 2025, the company completed a merger with Star Operating Companies, an event that management described as transformative in its 2025 results commentary. Following that transaction, the company highlighted stronger scale and reported full-year 2025 revenue of $172.2 million, up 23% year over year, with pro forma revenue of $224.7 million. In March 2026, management also pointed to improved quarterly momentum versus the prior year, while the corporate website continued to list a cash dividend on the Series A preferred stock. For equity investors, the key question is whether Star can turn its multi-division structure into a more coherent, higher-margin platform over time. ([starequity.com](https://www.starequity.com/news-releases/news-release-details/star-equity-holdings-reports-2025-fourth-quarter-and-full-year))
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