Table of Contents QUARTERLY REPORT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2025 ALTENERGY ACQUISITION CORP. (Exact name of registrant as specified in its charter) 001-40984 (Commission File Number) Delaware 85-2157013 (State or other jurisdiction of incorporation or organization) (IRS Employer Identification No.) 600 Lexington Avenue, 9th ...