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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

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 ~~May~~August 2025

Commission File Number: 001-34848

SEANERGY MARITIME HOLDINGS CORP.

(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 ~~(this “Report”)~~ on Form 6-K as Exhibit 99.1 is a copy of the press release of Seanergy Maritime Holdings Corp. (the “Company”) dated ~~May~~August 275, 2025 titled “Seanergy Maritime Reports Second Quarter and First Half Financial Results for the ~~Quarter~~Periods Ended ~~March~~June 3130, 2025; ~~and~~ Declares Quarterly Cash Dividend of $0.05 Per Share.”

~~This~~Attached ~~Report~~to this report on Form 6-K ~~and~~as ~~the~~Exhibit ~~exhibit~~99.2 ~~hereto,~~is ~~excluding~~Management’s ~~the~~Discussion ~~statements~~and ~~attributed~~Analysis toof ~~the~~Financial ~~Company’s~~Condition ~~Chairman &~~and ~~Chief~~Results ~~Executive~~of ~~Officer,~~Operations ~~are~~and ~~hereby~~the ~~incorporated~~Unaudited byInterim Consolidated ~~reference~~Financial ~~into~~Statements of the Company's ~~Registration~~as ~~Statements~~of onand ~~Form~~for Fthe six-3month ~~(File~~period ~~Nos.~~ended ~~333-280792,~~June ~~333-253332~~30, ~~333-238136, 333-166697 and 333-169813)~~2025.

This report on Form 6-K and Exhibit 99.2 hereto are hereby incorporated by reference into the Company’s Registration Statements on Form F-3 (File Nos. 333-280792, 333-253332, 333-238136, 333-166697 and 333-169813).

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.

Date: May 30, 2025
	SEANERGY MARITIME HOLDINGS CORP.
	By:	/s/ Stamatios Tsantanis
	Name:	Stamatios Tsantanis
	Title:	Chief Executive Officer

Date: August 7, 2025

	SEANERGY MARITIME HOLDINGS CORP.

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

Filing Compare · Seanergy Maritime Holdings Corp.