UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 126, 2026

Star Equity Holdings, Inc.

(Exact name of registrant as specified in charter)

Delaware

001-38704

59-3547281

(State or other jurisdiction
of incorporation)

(Commission
File Number)

(I.R.S. Employer
Identification No.)

53 Forest Avenue, Suite 101

Old Greenwich, CT 06870

(Address of Principal Executive Offices)

Registrant's telephone number, including area code (203) 489-9500

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:


o			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)


o			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)


o			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))


o			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.001 par value	STRR	The NASDAQ Stock Market LLC
Series A Preferred Stock, $0.001 par value	STRRP	The NASDAQ Stock Market LLC
Preferred Share Purchase Rights

Indicate by check mark whether the Registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the Registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 78.01. ~~REGULATION~~OTHER ~~FD DISCLOSURE~~EVENTS.

~~Pursuant~~On toJune ~~Regulation~~29, FD2026, Star Equity Holdings, Inc. (the “"Company”") ~~hereby~~issued ~~furnishes~~a ~~the~~press ~~investor~~release ~~presentation~~announcing ~~(the~~that ~~"Investor Presentation") relating to~~ the Company’s ~~business~~common ~~and~~stock ~~operations~~has asbeen ofadded ~~March~~to ~~31,~~the ~~2026,~~Russell ~~which~~Microcap ~~the~~Index ~~Company~~following ~~made~~the ~~available~~2026 onRussell ~~June~~indexes 1reconstitution, ~~2026,~~which ~~within~~became ~~the~~effective ~~Investor~~after ~~Relations~~the ~~section~~U.S. ofmarket ~~the~~close ~~Company’s~~on ~~website:~~June ~~www~~26, 2026.~~starequity.com.~~

~~The~~A ~~information~~copy ~~contained in the Investor Presentation is summary information that should be considered in the context~~ of the ~~Company’s filings with the Securities and Exchange Commission and other public announcements the Company may make by~~ press release oris ~~otherwise~~attached ~~from time~~ to ~~time. The Investor Presentation speaks as of the date of~~ this ~~report,~~Current ~~and~~Report inon ~~accordance~~Form ~~with~~8-K ~~the~~as ~~dates~~Exhibit ~~provided therein~~99.1 ~~While the Company may elect to update the Investor Presentation in the future to reflect events~~ and ~~circumstances~~is ~~occurring~~incorporated orherein ~~existing~~by ~~after the date of this report, the Company specifically disclaims any obligation to do so~~reference.

AITEM ~~copy of the Investor Presentation is furnished herewith as Exhibits 99~~9.~~1. The information furnished by the Company pursuant to this Item 7.~~01~~, including Exhibits 99~~.1, ~~shall~~FINANCIAL ~~not~~STATEMENTS beAND deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be deemed to be incorporated by reference into any Company filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filingEXHIBITS.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

The exhibit listed in the following Exhibit Index is provided as part of the information furnished under Item 2.02 of this Current Report on Form 8-K:

EXHIBIT INDEX

99.1			~~Investor~~Press ~~Presentation~~Release of Star Equity Holdings, Inc. dated June 129, 2026
104			Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.

STAR EQUITY HOLDINGS, INC. (Registrant)
STAR EQUITY HOLDINGS, INC (Registrant)
By:	/s/ MATTHEW K. DIAMOND
	Matthew K. Diamond
	Chief Accounting Officer
	Dated:	June 129, 2026

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