STOCK TITAN

Major holder Jeffrey E. Eberwein details 30.7% STRR stake and 10b5-1 plan

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13D/A

Rhea-AI Filing Summary

Jeffrey E. Eberwein reports beneficial ownership of 1,149,289 shares of Star Equity Holdings common stock, representing about 30.7% of the class, based on 3,748,404 shares including warrants. The aggregate purchase price for these common shares is approximately $22.56 million.

He also owns 765,077 shares of the company’s 10% Series A Cumulative Perpetual Preferred Stock. On June 25, 2026, he entered into a Rule 10b5-1 sales trading plan with Ladenburg Thalmann & Co. to permit discretionary, pre-arranged sales of the preferred stock between October 1, 2026 and October 1, 2028, with no assurance any preferred shares will actually be sold.

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Beneficial common shares 1,149,289 shares Common stock beneficially owned by Eberwein as of June 29, 2026
Ownership percentage 30.7% Percent of Star Equity common stock class represented by 1,149,289 shares
Aggregate purchase price $22,560,917 Total paid for 1,149,289 common shares, excluding brokerage commissions
Shares outstanding base 3,698,954 shares Common shares outstanding as of June 29, 2026, used in ownership calculation
Warrant shares included 49,450 shares Common shares underlying immediately exercisable warrants included in beneficial ownership
Total shares for percentage 3,748,404 shares Outstanding common plus 49,450 warrant shares attributed to Eberwein
Preferred shares held 765,077 shares 10% Series A Cumulative Perpetual Preferred Stock owned by Eberwein
10b5-1 plan term Oct 1, 2026 – Oct 1, 2028 Period during which broker may sell preferred stock under the plan
Rule 10b5-1 regulatory
"entered into a Rule 10b5-1 of the Securities Exchange Act of 1934 Sales Trading Plan"
Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.
Schedule 13D regulatory
"The following constitutes Amendment No. 12 to the filed by the undersigned"
A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.
10% Series A Cumulative Perpetual Preferred Stock financial
"Mr. Eberwein owns 765,077 shares of the Issuer's 10% Series A Cumulative Perpetual Preferred Stock"
beneficially owned financial
"The aggregate purchase price of the 1,149,289 Shares beneficially owned by Mr. Eberwein"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
ATM offering program financial
"the Broker is selling Preferred Stock as sales agent for the Issuer's ATM offering program"
An ATM offering program (short for “at-the-market” offering) lets a company sell newly issued shares directly into the public market at prevailing prices over time, rather than all at once. It matters to investors because it provides a flexible way for the company to raise cash when conditions are favorable, but it can increase the number of shares available and dilute existing ownership, which may affect the stock’s price and earnings per share. An everyday analogy is a baker adding extra loaves to a shop shelf throughout the day at whatever the current price is.
Sole Voting Power financial
"Number of Shares Beneficially Owned by Each Reporting Person With: Sole Voting Power 1,149,289.00"
Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.
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Learn about SEC filing dates





443787205

(CUSIP Number)
JEFFREY E. EBERWEIN
53 Forest Avenue, Suite 101,
Old Greenwich, CT, 06870
203-489-9500

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
06/25/2026

(Date of Event Which Requires Filing of This Statement)


If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




schemaVersion:


SCHEDULE 13D




Comment for Type of Reporting Person:
* Includes 49,450 shares of common stock underlying immediately exercisable warrants ("Warrants") to purchase Star common stock. Excludes certain grants made under the Issuer's 2009 Incentive Stock and Awards Plan, as amended and restated, specifically 8,918 shares of restricted stock granted on September 15, 2025, 5,703 shares of restricted stock granted on January 15, 2026, 6,504 shares of restricted stock granted on April 15, 2026, and 6,750 restricted stock units granted on January 24, 2025, which vest upon the anniversary of the respective grant dates.


SCHEDULE 13D


JEFFREY E. EBERWEIN
Signature:/s/ Jeffrey E. Eberwein
Name/Title:Jeffrey E. Eberwein
Date:06/29/2026

FAQ

How many STRR common shares does Jeffrey E. Eberwein report owning?

Jeffrey E. Eberwein reports beneficial ownership of 1,149,289 Star Equity Holdings common shares. This figure includes 49,450 shares underlying immediately exercisable warrants and is based on a total of 3,748,404 shares, combining outstanding common shares and attributed warrants.

What percentage of Star Equity Holdings (STRR) does Eberwein beneficially own?

Eberwein reports beneficial ownership of approximately 30.7% of Star Equity’s common stock. This percentage is calculated using 3,748,404 shares, which reflect 3,698,954 shares outstanding as of June 29, 2026, plus 49,450 common shares issuable upon exercise of warrants attributed to him.

What is the aggregate purchase price of Eberwein’s STRR common stock position?

The aggregate purchase price of Eberwein’s 1,149,289 Star Equity common shares is about $22,560,917, excluding brokerage commissions. This amount reflects what he paid to build the disclosed common stock position, not the current market value of the holdings.

How many preferred shares of Star Equity Holdings (STRR) does Eberwein own?

In addition to his common shares, Eberwein owns 765,077 shares of Star Equity’s 10% Series A Cumulative Perpetual Preferred Stock. This preferred position is separate from his common stock holdings and is the security subject to the disclosed Rule 10b5-1 sales trading plan.

What are the key dates for Eberwein’s Rule 10b5-1 sales plan on STRR preferred stock?

The Rule 10b5-1 sales trading plan was entered on June 25, 2026. The broker may begin selling Star Equity preferred stock under the plan on October 1, 2026, and the plan expires on October 1, 2028, unless earlier terminated under specified conditions.

Does Eberwein’s Rule 10b5-1 plan guarantee sales of STRR preferred shares?

The plan does not guarantee any sales of Star Equity preferred shares. The filing states there can be no assurance how many, if any, preferred shares will be sold or at what prices, and the seller may later modify, suspend, or terminate the plan.