Document:

EX-4.1

 Exhibit 4.1 

NUMBER UNITS 
 U-
 SEE REVERSE FOR CERTAIN DEFINITIONS 

CUSIP 48661U 201 
 KAYNE
ANDERSON ACQUISITION CORP. 
 UNITS CONSISTING OF ONE SHARE OF CLASS A COMMON STOCK AND
ONE-THIRD OF ONE WARRANT TO PURCHASE ONE SHARE OF CLASS A COMMON STOCK 
 THIS CERTIFIES
THAT                      is the owner of          Units. 

Each Unit (“Unit”) consists of one (1) share of Class A common stock, par value $0.0001 per share
(“Common Stock”), of Kayne Anderson Acquisition Corp., a Delaware corporation (the “Company”), and one-third (1/3) of one warrant (the
“Warrant”). Each whole Warrant entitles the holder to purchase one (1) share (subject to adjustment) of Common Stock for $11.50 per share (subject to adjustment). Each Warrant will become exercisable on the
later of (i) thirty (30) days after the Company’s completion of a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or other similar business combination with one or more businesses (each a
“Business Combination”), or (ii) twelve (12) months from the closing of the Company’s initial public offering, and will expire unless exercised before 5:00 p.m., New York City Time, on the date that is five
(5) years after the date on which the Company completes its initial Business Combination, or earlier upon redemption or liquidation (the “Expiration Date”). The Common Stock and Warrants comprising the Units
represented by this certificate are not transferable separately prior to             , 2017, unless Citigroup Global Markets Inc., Deutsche Bank Securities Inc., and Credit Suisse
Securities (USA) LLC elect to allow separate trading earlier, subject to the Company’s filing of a Current Report on Form 8-K with the Securities and Exchange Commission containing an audited balance
sheet reflecting the Company’s receipt of the gross proceeds of the offering and issuing a press release announcing when separate trading will begin. The terms of the Warrants are governed by a Warrant Agreement, dated as of
            , 2017, between the Company and American Stock Transfer & Trust Company, LLC, as Warrant Agent, and are subject to the terms and provisions contained therein, all of
which terms and provisions the holder of this certificate consents to by acceptance hereof. Copies of the Warrant Agreement are on file at the office of the Warrant Agent at 6201 15th Avenue, Brooklyn, New York 11219 and are available to any
Warrant holder on written request and without cost. 
 This certificate is not valid unless countersigned by the Transfer Agent and
Registrar of the Company. 
 This certificate shall be governed by and construed in accordance with the internal laws of the State of New
York. 
 Witness the facsimile signature of a duly authorized signatory of the Company. 

 

					
	  
	 		 	  

	Authorized Signatory	 		 	Transfer Agent

 Kayne Anderson Acquisition Corp. 

The Company will furnish without charge to each unitholder who so requests, a statement of 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. 

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 sell,
assign and transfer unto                      

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

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

         Units represented by the within Certificate, and do hereby irrevocably constitute and
appoint 
 Attorney to transfer the said Units on the books of the within named Company with full power of substitution in the premises.

 Dated 
  

	
	  

	Notice: The signature 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:
	
	  

	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).

 In each case, as more fully described in the Company’s final prospectus dated
            , 2017, 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 its initial public offering and liquidates because it does not consummate
an initial business combination by             , 2019, (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 to modify the substance or timing of the Company’s obligation to redeem 100% of the Class A common stock if it does not consummate an initial
business combination by             , 2019, 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.EX-4.2

 Exhibit 4.2 
  

			
		 	 NUMBER

C-

		 	 SHARES

		 	 SEE REVERSE FOR CERTAIN DEFINITIONS

		 	 CUSIP 48661U 102

 KAYNE ANDERSON 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 
 KAYNE ANDERSON ACQUISITION CORP. 

(THE “CORPORATION”) 

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

The Corporation will be forced to redeem all of its shares of Class A common stock if it is unable to complete a business combination by
            , 2019, as more fully described in the Corporation’s final prospectus dated             , 2017. 

This certificate is not valid unless countersigned by the Transfer Agent and registered by the Registrar. 

Witness the seal of the Corporation and the facsimile signatures of its duly authorized officers. 

 

					
	  
	 	[Corporate Seal]	 	  

	Authorized Signatory	 	Delaware	 	Transfer Agent

 KAYNE ANDERSON ACQUISITION CORP. 

The Corporation 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 Corporation 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 Certificate of Incorporation and all amendments thereto and resolutions of the Board of Directors providing for the issue of securities (copies of which may be obtained from the secretary of the Corporation), 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 capital 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 Corporation 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 SEC RULE 17Ad-15(OR ANY SUCCESSOR
RULE). 
 In each case, as more fully described in the Corporation’s final prospectus dated
            , 2017, 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 Corporation’s initial public offering only in the event that (i) the Corporation redeems the shares of Class A common stock sold in its initial public offering and liquidates because it does not
consummate an initial business combination by             , 2019, (ii) the Corporation redeems the shares of Class A common stock sold in its initial public offering in connection
with a stockholder vote to amend the Corporation’s amended and restated certificate of incorporation to modify the substance or timing of the Corporation’s obligation to redeem 100% of the Class A common stock if it does not
consummate an initial business combination by             , 2019, 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 Corporation 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.

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