UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 4, 2026

Registrant’s telephone number, including area code: (561) 589-7020

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 (§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 1.01. Entry into a Material Definitive Agreement.

As previously reported in GridAI Technologies Corp. (the “Company”)’s Current Report on Form 8-K filed on July 23, 2026, the Company made a loan (“Loan”) to Pronghorn Resources, LLC, a Delaware limited liability company (“Pronghorn”, and, together with the Company, the “Parties”), pursuant to the terms of a Secured Convertible Promissory Note (“Note”), in the principal sum of $2,000,000 (the “Principal Amount”). On September 4, 2026, the Parties entered into that certain Amended and Restated Secured Convertible Promissory Note (“Amended Note”), which amended and restated the terms of the Note such that the Amended Note’s terms reflected the Company’s second loan of an additional $964,000 to Pronghorn (such second loan made following the Loan).

In connection with the Parties’ entry into the Amended Note, the Parties entered into that certain First Amendment to the Security Agreement on September 4, 2026 (“Amended Security Agreement”). The Amended Security Agreement amended and restated the Security Agreement entered into between the Parties on July 17, 2026 (“Security Agreement”), such that the definition for the term “Note” was replaced with the Amended Note.

Capitalized terms used herein but not otherwise defined have the meanings set forth in the Amended Note. The foregoing descriptions of the Amended Note and Amended Security Agreement do not purport to be complete and are qualified in their entirety by reference to the full text of the Amended Note and Amended Security Agreement, copies of which are attached hereto as Exhibits 10.1 and 10.2, respectively, and are incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

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.