UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

~~WASHINGTON~~Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR

15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2025

Commission File Number: 001-41413

UNITED MARITIME CORPORATION

(Translation of registrant’s name into English)

154 Vouliagmenis Avenue

166 74 Glyfada

Athens, Greece

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.:

Form 20-F ☒ ⌧ Form 40-F ☐

INFORMATION CONTAINED IN THIS REPORT ON FORM 6-K ~~REPORT~~

Attached to this report on Form 6-K as Exhibit 99.1 is a copy of the press release of United Maritime Corporation (the “Company”) ~~announced~~dated ~~today~~November ~~that~~11, ~~the following~~2025, ~~proposals~~titled ~~were~~“United ~~approved~~Maritime ~~and~~Reports ~~adopted~~Third atQuarter ~~its~~and ~~2025~~Nine ~~Annual~~Months ~~Meeting~~Financial ofResults ~~Shareholders~~for ~~held~~the onPeriods ~~October~~Ended September 30, 2025:” and “Declares Quarterly Cash Dividend of $0.09 Per Share” and “Announces Strategic AI Investment in Ship Management Technology”.

a)Attached ~~the~~to ~~election~~this ofreport ~~Mr.~~on ~~Stamatios~~Form ~~Tsantanis~~6-K as ~~Class~~Exhibit C99.2 ~~Director~~is toManagement’s ~~serve~~Discussion ~~until~~and Analysis of Financial Condition and Results of Operations and the ~~2028~~Unaudited ~~Annual~~Interim ~~Meeting~~Condensed Consolidated Financial Statements of ~~Shareholders;~~the Company as of and for the nine-month period ended September 30, 2025.

b)This report on Form 6-K and the ~~ratification~~exhibits ofhereto, excluding the ~~appointment~~statements ofattributed ~~Ernst~~to &the ~~Young~~Company’s ~~(Hellas)~~Chairman ~~Certified~~& ~~Auditors~~Chief Executive ~~Accountants~~Officer, ~~S.A.~~are tohereby ~~serve~~incorporated asby reference into the Company’s ~~independent~~Registration ~~auditors~~Statements ~~for~~on ~~the~~Form ~~fiscal~~F-3 ~~year~~(File ~~ending~~Nos. ~~December~~333-273116 ~~31, 2025;~~ and 333-266099).

c) the reinstatement of the Company’s previous authorization to have the option to conduct one or more reverse stock splits of the Company’s issued and outstanding common stock and the approval of the related amendment to the Company’s Amended and Restated Articles of Incorporation.

This Report on Form 6-K is hereby incorporated by reference into the Company’s Registration Statements on Form F-3 (File No. 333-273116 and 333-266099).

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, thereunto duly authorized.

	UNITED MARITIME CORPORATION
	(Registrant)
	By:	/s/ Stamatios Tsantanis
	Name:	Stamatios Tsantanis
	Title:	Chief Executive Officer
Date: November 3, 2025

Date: November 21, 2025


	UNITED MARITIME CORPORATION

	By:	/s/ Stamatios Tsantanis
	Name:	Stamatios Tsantanis
	Title:	Chief Executive Officer

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