EX-4.2





 Exhibit 4.2 
  

			
	NUMBER	  	SHARES
	C-	  	
		  	CUSIP [•]

 SEE REVERSE FOR CERTAIN DEFINITIONS 

ALTENERGY ACQUISITION CORP. 

INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE 

CLASS A COMMON STOCK 
 This
Certifies that                          is the owner of
                         

FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE OF $0.0001 EACH OF THE CLASS A COMMON STOCK OF
ALTENERGY ACQUISITION CORPORATION 
 (THE “COMPANY”) 

transferable on the books of the Company in person or by duly authorized attorney upon surrender of this certificate properly endorsed. 

The Company will be forced to redeem all of its shares of Class A common stock if it does not complete a business 

combination by the date set forth in the Company’s amended and restated certificate of incorporation, as the same may be amended 

from time to time, all as more fully described in the Company’s final prospectus
dated        , 2021. 
 This certificate is not valid unless countersigned by the Transfer
Agent and registered by the Registrar. Witness the facsimile seal of the Company and the facsimile signatures of its duly authorized officers. 

[Corporate Seal] 
 Delaware 

 

			
	                                      
                                         
                     	  	                                      
                                         
                      
	Chief Executive Officer	  	Chief Financial Officer













 ALTENERGY ACQUISITION CORP. 

The Company will furnish without charge to each stockholder who so requests the powers, designations, preferences and relative, participating,
optional or other special rights of each class of stock or series thereof of the Company and the qualifications, limitations, or restrictions of such preferences and/or rights. This certificate and the shares represented thereby are issued and shall
be held subject to all the provisions of the Company’s amended and restated certificate of incorporation and all amendments thereto and resolutions of the Company’s Board of Directors providing for the issue of securities (copies of which
may be obtained from the secretary of the Company), to all of which the holder of this certificate by acceptance hereof assents. The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though
they were written out in full according to applicable laws or regulations: 
  

													
	TEN COM	  	 	—	 	  	as tenants in common	  	UNIF GIFT	  	—	  	
	 	  	 	 	  	 	  	MIN ACT	  	Custodian
	 	  	 	 	  	 	  	 	  	 
	TEN ENT	  	 	—	 	  	as tenants by the entireties	  		  	  
 (Cust)
	  	  

(Minor)

					
	JT TEN	  	 	—	 	  	 as joint tenants with right of

survivorship and not as

tenants in common
	  		  	under Uniform Gifts to Minors Act
		  				  		  		  	  

(State)


 Additional abbreviations may also be used though not in the above list. 

For value received,                  hereby
sells, assigns and transfers unto 
  
  

(PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER(S) OF ASSIGNEE(S)) 

 
  

(PLEASE PRINT OR TYPEWRITE NAME(S) AND ADDRESS(ES), INCLUDING ZIP CODE, OF ASSIGNEE(S)) 

                          
              shares of the Class A common stock represented by the within Certificate, and hereby irrevocably constitutes and appoints
                                    Attorney to transfer the
said stock on the books of the within named Company with full power of substitution in the premises. 
  

			
	Dated:                                    
	  	
		
		  	  
 NOTICE: THE SIGNATURE(S) TO THIS
ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

		
	Signature(s) Guaranteed:	  	
		
	By:                                     
                   	  	
	THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C.
RULE 17Ad-15 (OR ANY SUCCESSOR RULE) UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS	  	
	AMENDED).	  	


  
 2 













 In each case, as more fully described in the Company’s final prospectus dated
                    , 2021, the holder(s) of this certificate shall be entitled to receive a pro-rata
portion of certain funds held in the trust account established in connection with the Company’s initial public offering only in the event that (i) the Company redeems the shares of Class A common stock sold in the Company’s
initial public offering and liquidates because it does not consummate an initial business combination by the date set forth in the Company’s amended and restated certificate of incorporation, (ii) the Company redeems the shares of
Class A common stock sold in its initial public offering in connection with a stockholder vote to amend the Company’s amended and restated certificate of incorporation (a) to modify the substance or timing of the Company’s
obligation to allow redemptions in connection with its initial business combination or to redeem 100% of the Class A common stock if it does not consummate an initial business combination by the date set forth in the Company’s amended and
restated certificate of incorporation or (b) with respect to any other provision relating to stockholders’ rights or pre-initial business combination activity, or (iii) if the holder(s) seek(s)
to redeem for cash his, her or its respective shares of Class A common stock in connection with a tender offer (or proxy solicitation, solely in the event the Company seeks stockholder approval of the proposed initial business combination)
setting forth the details of a proposed initial business combination. In no other circumstances shall the holder(s) have any right or interest of any kind in or to the trust account.