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

September 19, 2025

Date of Report (Date of earliest event reported)

FLAG SHIP ACQUISITION CORPORATION

(Exact Name of Registrant as Specified in Charter)

Cayman Islands		001-42138		00-0000000 N/A
(State or Other Jurisdiction of Incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)

26 Broadway, Suite 934

New York, New York 10004

(Address of Principal Executive Offices, and Zip Code)

(646)-362-0256

Registrant’s Telephone Number, Including Area Code

Not Applicable

(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 (see General Instruction A.2. below):

☐	Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

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

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

☐	Pre-commencement communication 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
Units, each consisting of one Ordinary Share, $0.001 par value, and one right	FSHPU	The Nasdaq Stock Market LLC
Ordinary Shares, $0.001 par value	FSHP	The Nasdaq Stock Market LLC
Rights to receive one-tenth (1/10^th) of one Ordinary Share	FSHPR	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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 8.01.

Other Events.

On August 26, 2025, Flag Ship Acquisition Corporation (the “Company”) elected to extend the date by which it has to consummate its initial business combination by one (1) month, from September 20, 2025 to October 20, 2025, subject to the Company’s sponsor (or its designee) depositing additional funds into the trust account (the “Trust Account”). The Company is permitted a total nine (9) one month extension periods, to June 20, 2026, to complete its initial business combination, subject to the Sponsor depositing additional amounts into the Trust Account. On September 19, 2025, Whale Management Corporation (the “Sponsor”) caused the first monthly extension fee of $60,000 to be deposited into the Trust Account.

On September 23, 2025, the Company issued a press release announcing the first extension of the period of time the Company has to consummate its initial business combination from September 20, 2025 to October 20, 2025. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01.

Financial Statement and Exhibits.

(d)

Exhibits

EXHIBIT INDEX

Exhibit No.		Description
99.1		Press Release, dated September 23, 2025
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 Company has duly caused this Report on Form 8-K to be signed on its behalf by the undersigned hereunto duly authorized.

	Flag Ship Acquisition Corporation

Dated: September 23, 2025	By:	/s/ Matthew Chen
	Name:	Matthew Chen
	Title:	Chief Executive Officer

Flag Ship Acquisition Corp 8-K