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

Date of report (Date of earliest event reported):May 6, 2025

Cartesian Growth Corporation II

(Exact name of registrant as specified in itscharter)

(212) 461-6363

(Registrant’s telephone number, includingarea code)

Not Applicable

(Former name or former address, if changed sincelast 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:

Securities registered pursuant to Section 12(b) of the Act:

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 x

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 3.01          Noticeof Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

On May 6, 2025, Cartesian Growth Corporation II (the “Company”) received a letter from the Listing Qualifications Department of The Nasdaq Stock Market (“Nasdaq”) stating that, pursuant to Nasdaq Listing Rule IM-5101-2 (“Rule IM-5101-2”), the staff of Nasdaq (“Staff”) had determined that (i) the Company’s securities will be delisted from Nasdaq, (ii) trading of the Company’s Class A common stock, warrants, and units will be suspended at the opening of business on May 13, 2025 and (iii) a Form 25-NSE will be filed with the Securities and Exchange Commission, which will remove the Company’s securities from listing and registration on Nasdaq. Under Rule IM-5101-2, a special purpose acquisition company must complete one or more business combinations within 36 months of the effectiveness of its initial public offering registration statement. Since the Company failed to complete its initial business combination by May 5, 2025, the Staff concluded that the Company did not comply with Rule IM-5101-2 and that the Company’s securities are subject to delisting.

The Company will not appeal Nasdaq’s determination to delist the Company’s securities and accordingly, the Company’s securities will be suspended from trading on Nasdaq at the opening of business on May 13, 2025. The Company expects its securities to be quoted on the over-the-counter market following delisting from Nasdaq. The Company is working diligently to complete an initial business combination as soon as practicable.

The Company will remain a reporting entity under the Securities Exchange Act of 1934, as amended, with respect to continued disclosure of financial and operational information.

CautionaryNote Regarding Forward Looking Statements:

This Current Report on Form 8-K contains forward-looking statements regarding future events and our future results that are subject to the safe harbors created under the Private Securities Litigation Reform Act of 1995, including statements regarding the expected quotation of the Company’s securities on the over-the-counter market and its ability to complete an initial business combination. These statements reflect the beliefs and assumptions of the Company’s management as of the date hereof. Words such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “goal,” “intend,” “may,” “plan,” “project,” “seek,” “should,” “target,” “will,” “would,” variations of such words, and similar expressions are intended to identify forward-looking statements. Readers are cautioned that these forward-looking statements are only predictions and are subject to risks, uncertainties and assumptions that are difficult to predict. The Company’s actual results could differ materially and adversely from those expressed in or contemplated by the forward-looking statements. Readers are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date on which they are made. The Company undertakes no obligation to update or revise any forward-looking statements for any reason.

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.

Date: May 9, 2025