Proxy Results, Amendments to Bylaws (Form 8-K)

The information disclosed in Item 5.07 of this Current Report on Form 8-K under the heading "Proposal 1" is incorporated by reference into this Item 5.03 to the extent required.

On April 27, 2026, AltEnergy Acquisition Corp., a Delaware corporation (the "Company") held a special meeting of stockholders (the "Special Meeting"). As of March 20, 2026, the record date of the Special Meeting, there were 6,266,197 issued and outstanding shares of common stock of the Company, par value $0.0001 per share (the "Common Stock") comprised of 6,016,197 shares of the Company's Class A common stock, par value $0.0001 per share ("Class A Shares"), and 250,000 shares of the Company's Class B common stock, par value $0.0001 per share. At the Special Meeting, approximately 91.8% of the total shares of Common Stock outstanding as of the record date were present in person or by proxy, which constituted a quorum. A summary of the voting results at the Special Meeting for each of the proposals is set forth below.

Proposal 1

The Company's stockholders approved the proposal to file an amendment to the Company's Amended and Restated Certificate of Incorporation with the Secretary of State of Delaware to extend the date by which the Company must (1) consummate a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses or (2) cease its operations except for the purpose of winding up if it fails to complete such initial business combination, and redeem all of the Class A Shares included as part of the units sold in the Company's initial public offering that was consummated on November 2, 2021 (the "IPO"), from May 1, 2026, to May 3, 2027 (the "Extended Date") (such proposal, the "Extension"). The voting results for such proposal were as follows:

Proposal 2

The proposal to adjourn the Special Meeting to a later date or dates, if necessary or convenient, to permit further solicitation and vote of proxies in the event that there were insufficient votes for, or otherwise in connection with, the approval of the Extension and the Redemption Limitation Amendment, was not presented at the Special Meeting as the Extension Proposal received a sufficient number of votes for approval.

On April 29, 2026, to effectuate the Extension, the Company filed an amendment to the Certificate of Incorporation (the "Amendment") with the Secretary of State of the State of Delaware. The foregoing description of the Amendment does not purport to be complete and is qualified in its entirety by the terms of the Amendment, a copy of which is attached hereto as Exhibit 3.1 and incorporated herein by reference.

Stockholders holding 2,719 Class A Shares exercised their right to redeem such shares for a pro rata portion of the funds in the Company's trust account ("Trust Account") in connection with the Extension. As a result, $32,970.61 (approximately $12.126 per share) will be removed from the Trust Account to pay such holders.