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): September 2, 2025

CSLM Acquisition Corp.
(Exact name of registrant as specified in its charter)

Cayman Islands		001-41219		98-1602789
(State or other jurisdiction of incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)

2400 E. Commercial Boulevard, Suite 900

Ft. Lauderdale, FL

33308

(Address of principal executive offices)

(Zip Code)

(954) 315-9381
(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:

	☐	Written communications 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 communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

	☐	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 Securities Exchange Act of 1934:NONE

Securities registered pursuant to Section 12(g) of the Securities Exchange Act of 1934:

Title for each class		Trading Symbol(s)
Units, each consisting of one Class A ordinary share, one right and one-half of one redeemable warrant		CSLFU
Class A ordinary shares, par value $0.0001 per share		CSLMF
Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50		CSLWF
Rights to acquire one-tenth of one Class A ordinary share		CSLRF

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 8.01. Other Events.

On September 2, 2025, the Company deposited $15,000 into the Company’s trust account in order to further extend the amount of time it has available to complete a business combination to September 18, 2025. The Company had previously deposited $15,000 into the Company’s trust account on August 18, 2025, in order to extend the amount of time it had available to complete a business combination to September 2, 2025. The Company can extend the time available to complete a business combination on a semi-monthly basis, by depositing $15,000 for each semi-month extension, until October 18, 2025.

SIGNATURE

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.

	CSLM Acquisition Corp.

Dated: September 2, 2025	By:	/s/ Charles Cassel
		Name: Charles Cassel
		Title: Chief Executive Officer

CSLM ACQUISITION CORP. 8-K