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): June 16, 2026

General Catalyst Global Resilience Merger Corp.

(Exact name of registrant as specified in its charter)

+1 (617) 234-7000

(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:

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 or Rule 12b-2 of the Securities Exchange Act of 1934.

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 June 16, 2026, General Catalyst Global Resilience Merger Corp. (the “Company”), a blank check company, announced that the holders of the Company’s GRAIL securities (the “GRAIL Securities”) may elect to separately trade the Class A ordinary shares, par value $0.0001 per share (the “Class A ordinary shares”), and warrants included in the GRAIL Securities commencing on June 22, 2026. Each GRAIL Security consists of one Class A ordinary share and one-fourth of one warrant to purchase one Class A ordinary share. Any GRAIL Securities not separated will continue to trade on the Nasdaq Global Market (the “Nasdaq”) under the symbol “GCGRU”. Any underlying Class A ordinary shares and warrants that are separated will trade on the Nasdaq under the symbols “GCGR” and “GCGRW”, respectively. No fractional warrants will be issued upon separation of the GRAIL Securities and only whole warrants will trade. Holders of GRAIL Securities will need to have their brokers contact Continental Stock Transfer & Trust Company, the Company’s transfer agent, in order to separate the holders’ GRAIL Securities into Class A ordinary shares and warrants.

A copy of the press release issued on June 16, 2026 by the Company, announcing the expected begin of the optional separate trading of the securities underlying the GRAIL Securities, is attached hereto as Exhibit 99.1.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

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.