Star Equity (HSON) CEO sells preferred shares while RSUs vest into common

Rhea-AI Filing Summary

Star Equity Holdings, Inc. Chief Executive Officer and 10% owner Jeffrey E. Eberwein reported a mix of stock sales and equity vesting. He sold a total of 15,278 shares of Series A Preferred Stock in open-market transactions on March 25–27 at prices between $9.83 and $9.98 per share, leaving 771,939 preferred shares directly owned after the last sale. On March 25, he also exercised 740 Restricted Stock Units for no cash cost, receiving 740 shares of common stock and bringing his direct common stock holdings to 1,034,477 shares following the transaction. The RSUs originated from an earlier grant at Star Operating Companies, Inc. that was converted into Star Equity RSUs under a prior merger agreement and fully vested on March 25, 2026.

Insights

Insider trading and governance analyst

CEO reports modest preferred stock sales alongside routine RSU vesting.

Jeffrey E. Eberwein, CEO and 10% owner of Star Equity Holdings, sold 15,278 shares of Series A Preferred Stock over three days at prices around $9.83–$9.98. After these transactions he still directly owns 771,939 preferred shares.

On the same week, he settled 740 Restricted Stock Units into 740 common shares at a stated price of $0.00, lifting his direct common stock position to 1,034,477 shares. Footnotes describe this as scheduled vesting from RSUs previously converted in connection with a merger, indicating a compensation-driven, routine equity award settlement.

The filing reflects a net sale of 15,278 shares when combining sales and the RSU-related acquisition, with no remaining derivative positions shown in this excerpt. Given the much larger disclosed post-transaction holdings, these trades appear incremental rather than thesis-changing for the company.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Eberwein Jeffrey E.

(Last) (First) (Middle)

53 FOREST AVENUE, SUITE 101

(Street)

OLD GREENWICH CONNECTICUT 06870

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Star Equity Holdings, Inc. [ STRR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/25/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock.	03/25/2026		M		740	A	(1)(2)	1,034,477(3)	D
Series A Preferred Stock	03/25/2026		S		7,500	D	$9.95	779,717	D
Series A Preferred Stock	03/26/2026		S		424	D	$9.83	779,293	D
Series A Preferred Stock	03/27/2026		S		7,354	D	$9.98	771,939	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit	(1)(2)	03/25/2026		M			740	(4)	(4)	Common Stock.	740	(1)	0	D

Explanation of Responses:

1. Each Restricted Stock Unit represents the right to receive, at settlement, one share of common stock.

2. This transaction represents the settlement of Restricted Stock Units in shares of common stock on their scheduled vesting date.

3. Includes (i) 14,621 shares of restricted stock credited to the Reporting Person's account under the Issuer's 2009 Incentive Plan; (ii) 6,750 RSUs; and (iii) 1,013,106 shares of common stock. Excludes 1,690 shares indirectly owned in contributory 401(k) and IRA accounts. Each share of restricted stock and each RSU shall vest upon the first anniversary of the grant date and represents the right to receive, at settlement, one share of common stock.

4. On March 25, 2025, the Reporting Person was granted Restricted Stock Units by Star Operating Companies, Inc. ("SOC"), each of which represented the right to receive, at settlement, one share of SOC common stock ("SOC RSUs"). Pursuant to the Agreement and Plan of Merger, dated as of May 21, 2025, by and among SOC, the Issuer and HSON Merger Sub, Inc., a wholly owned subsidiary of the Issuer, the Reporting Person's SOC RSUs were exchanged for 740 Restricted Stock Units. As to this grant, one hundred percent (100%) of the Restricted Stock Units vested on March 25, 2026.

Remarks:

	/s/ Jeffrey E. Eberwein	03/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did Star Equity (HSON) CEO Jeffrey E. Eberwein report?

Jeffrey E. Eberwein reported selling Series A Preferred Stock and settling Restricted Stock Units. He sold 15,278 preferred shares in open-market transactions and exercised 740 RSUs into 740 common shares, reflecting both portfolio adjustments and routine equity compensation vesting.

How many Star Equity Series A Preferred shares did the CEO sell and at what prices?

The CEO sold 15,278 shares of Star Equity’s Series A Preferred Stock across three transactions. Reported sale prices ranged from about $9.83 to $9.98 per share, providing detail on the trading range for these insider open-market sales over March 25–27.

What are the CEO’s Star Equity holdings after these reported transactions?

After the reported activity, the CEO directly owns 771,939 shares of Series A Preferred Stock and 1,034,477 shares of common stock. These post-transaction balances, disclosed in the filing, show that the insider maintained a substantial ongoing equity position in the company.

What happened with Jeffrey E. Eberwein’s Restricted Stock Units at Star Equity?

He settled 740 Restricted Stock Units into 740 shares of common stock at a stated price of $0.00 per share. Footnotes explain these RSUs originated from a prior Star Operating Companies grant converted in a merger and fully vested on March 25, 2026.

Is the Star Equity CEO’s Form 4 activity mainly sales or acquisitions?

The Form 4 shows a net-selling pattern, with 15,278 Series A Preferred shares sold versus 740 common shares acquired through RSU vesting. This mix of open-market sales and routine equity award settlement results in a net reduction in reported share count for the period.