Sec Form 4 Filing - Stidolph Russell Monoki @ AltEnergy Acquisition Corp - 2023-04-28

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Stidolph Russell Monoki 2. Issuer Name and Ticker or Trading Symbol AltEnergy Acquisition Corp [ AEAE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) 137 ROWAYTON AVENUE 3. Date of Earliest Transaction (MM/DD/YY) 04/28/2023 (Street) ROWAYTON, CT06853 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 04/28/2023 C 5,500,000 ( 1 ) A 5,500,000 ( 2 ) I See footnote ( 3 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Common Stock ( 1 ) 04/28/2023 C( 1 ) 5,500,000 ( 1 ) ( 1 ) Class A Common Stock 5,500,000 ( 1 ) 1 I See footnote ( 3 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Stidolph Russell Monoki 137 ROWAYTON AVENUE ROWAYTON, CT06853 X X Chief Executive Officer AltEnergy Acquisition Sponsor LLC C/O ROWAYTON AVENUE ROWAYTON, CT06853 X Signatures /s/ AltEenrgy Acquisition Sponsor LLC, By: /s/ Russell Stidolph, Manager 05/01/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The shares of Class B common stock of the issuer, par value $0.0001 per share ("Class B Common Stock"), are convertible into an equal number of shares of Class A common stock of the issuer, par value $0.0001 per share ("Class A Common Stock"), and have no expiration date. On February 28, 2023, AltEnergy Acquisition Sponsor, LLC (the "Sponsor") elected to convert 5,750,000 shares of their Class B Common Stock into shares of Class A Common Stock. After such conversion, the Sponsor held 28,750,000 shares of Class A Common Stock. ( 2 )Excludes 11,600,000 shares of Class A common stock issuable upon exercise of warrants that are not presently exercisable. ( 3 )The securities reported herein are held of record by the Sponsor. Russell Stidolph, the Chief Executive Officer and a director of the issuer, is the managing member of the Sponsor and has voting and investment discretion with respect to the securities held by the Sponsor. As such, Mr. Stidolph may be deemed to possess beneficial ownership of the securities held directly by the Sponsor. Mr. Stidolph disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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