8-K

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

Dateof Report (Date of earliest event reported): October 31, 2025

CACTUS

ACQUISITION CORP. 1 LIMITED

(Exactname of registrant as specified in its charter)

Cayman Islands	001-40981	n/a 00-0000000
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

4BCedar Brook Drive

Cranbury,New Jersey 08512

(Addressof principal executive offices, including zip code)

(609)495-2222

(Registrant’stelephone number, including area code)

(Formername 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<br> communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting<br> material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement<br> communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement<br> 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
Units,<br> each consisting of one Class A ordinary share and one-half redeemable warrant	CTSUF	Over<br> The Counter (OTC) Market
Class<br> A ordinary shares, par value $0.0001 per share	CCTSF	Over<br> The Counter (OTC) Market
Redeemable<br> warrants, each warrant exercisable for one Class A ordinary share at an exercise price of $11.50	CCTWF	Over<br> The Counter (OTC) Market

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. ☐

Item5.07. Submission of Matters to a Vote of Security Holders.

Cactus Acquisition Corp. 1 Limited, a Cayman Islands exempted company (“Cactus” or the “Company”) held an extraordinary general meeting in lieu of an annual general meeting of the Company (the “Meeting”) on October 31, 2025 at 9:00 a.m. Eastern Time at the offices of Loeb & Loeb LLP, 345 Park Ave, New York, New York, 10154, and via live webcast.

There were 3,926,061 Class A ordinary shares par value $0.0001 per share and 1 Class B ordinary Share par value $0.0001 per share (together, the “Ordinary Shares”) for a total of 3,926,062 Ordinary Shares issued and outstanding on the record date, September 12, 2025. There were 3,902,546 Ordinary Shares present at said meeting in person or represented by proxy, which is 99.40% of the total outstanding shares, thereby constituting a quorum. Summarized below are the results of the matters voted on at the Meeting.

ArticlesAmendment

Shareholders approved the proposal to approve, by way of special resolution, an amendment (the “Amendment”) to the Company’s amended and restated memorandum and articles of association, to extend the date by which the Company would be permitted to consummate an initial business combination from November 2, 2025 to November 2, 2026, as well as to permit the Company’s board of directors, in its sole discretion, to elect to wind up the Company’s operations on an earlier date.

Adoption of the Articles Extension Proposal required approval of a majority of at least two-thirds of Cactus’ shareholders as, being entitled to do so, vote in person or by proxy at the Meeting. The voting results were as follows:

FOR	AGAINST	ABSTAIN	BROKER NON-VOTES
3,732,546	0	170,000	0

The Company has filed the Amendment with the Registrar of Companies of the Cayman Islands. A copy of the Amendment is attached hereto as Exhibit 3.1.

Item8.01. Other Events.

In connection with the shareholders’ vote at the Meeting, 711,333 Ordinary Shares were tendered for redemption. As a result, approximately $8,660,805.78 (approximately $12.18 per share) will be removed from the Company’s trust account to pay such holders, without taking into account additional allocation of payments to cover any tax obligation of the Company, such as franchise taxes, but not including any excise tax, since that date. Following redemptions, the Company will have 52,239 public Ordinary Shares outstanding, and approximately $636,033.80 will remain in the Company’s trust account.

Item9.01. Financial Statements and Exhibits

(c) Exhibits:

Exhibit No.	Description
3.1	Amendment to the Amended and Restated Memorandum and Articles of Association
104	Cover<br> Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

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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.

Dated: November 6, 2025

CACTUS ACQUISITION CORP. 1 LTD.
By:	/s/ Adam Ridgway
Name:	Adam<br> Ridgway
Title:	Chief<br> Executive Officer

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Exhibit3.1

AMENDMENT

TOTHE

AMENDEDAND RESTATED

MEMORANDUMAND ARTICLES OF ASSOCIATION

OF

CACTUSACQUISITION CORP. 1 LIMITED

October 31, 2025

RESOLVED, as special resolutions, that:

(i) Article 49.7 of the Articles of Association of the Company be deleted in its entirety and replaced as follows:

“In the event that the Company does not consummate a Business Combination by November 2, 2026 or such earlier date as determined by the Board, or such later time as the Members may approve in accordance with the Articles, the Company shall:

(a) cease all operations except for the purpose of winding up;

(b) as promptly as reasonably possible but not more than ten business days thereafter, redeem the Public Shares, at a per-Share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest earned on the funds held in the Trust Account and not previously released to the Company (less taxes payable and up to US$100,000 of interest to pay dissolution expenses), divided by the number of then Public Shares in issue, which redemption will completely extinguish public Members’ rights as Members (including the right to receive further liquidation distributions, if any); and.

(c) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining Members and the Directors, liquidate and dissolve, subject in each case to its obligations under Cayman Islands law to provide for claims of creditors and other requirements of Applicable Law.”

(ii) Article 49.8 of the Articles of Association of the Company be deleted in its entirety and replaced as follows:

“In the event that any amendment is made to the Articles:

(a) to modify the substance or timing of the Company’s obligation to allow redemption in connection with a Business Combination or an amendment to these Articles prior thereto or redeem 100 percent of the Public Shares if the Company does not consummate a Business Combination by November 2, 2026, or such later time as the Members may approve in accordance with the Articles; or

(b) with respect to any other provision relating to Members’ rights or pre-Business Combination activity, each holder of Public Shares who is not a Sponsor, a Founder, Officer or Director shall be provided with the opportunity to redeem their Public Shares upon the approval or effectiveness of any such amendment at a per-Share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest earned on the funds held in the Trust Account and not previously released to the Company to pay its taxes, divided by the number of then outstanding Public Shares. The Company’s ability to provide such redemption in this Article is subject to the Redemption Limitation.”