Exhibit 4.2

 

	
NUMBER
    	
 
    	
NUMBER C SHARES SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP   G0726L 125
    


 

AVISTA HEALTHCARE PUBLIC ACQUISITION CORP.
 INCORPORATED UNDER THE LAWS OF THE CAYMAN ISLANDS
 CLASS A ORDINARY SHARES

 

	
This Certifies that
    	
 
    
	
 
    	
 
    
	
is the owner of
    	
 
    


 

FULLY PAID AND NON-ASSESSABLE CLASS A ORDINARY SHARES OF THE PAR VALUE OF $0.0001 EACH OF

 

AVISTA HEALTHCARE PUBLIC ACQUISITION CORP.
 (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 Class A ordinary shares if it is unable to complete a business combination by            , 2018 all as more fully described in the Company’s final prospectus dated          , 2016.

 

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

 

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

 


	
Director
    	
 
    	
[Corporate Seal]
   Cayman Islands
    	
 
    	
Vice President
    




 











 

AVISTA HEALTHCARE PUBLIC ACQUISITION CORP.

 

The Company will furnish without charge to each shareholder who so requests the powers, designations, preferences and relative, participating, optional or other special rights of each class of shares 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 amended and restated memorandum and articles of association 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 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 represented by the within   Certificate, and does hereby irrevocably constitute and appoint
    
	
 
    
	
Attorney to transfer the said shares 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 UNDER THE SECURITIES ACT OF 1933, AS AMENDED).

 

In each case, as more fully described in the Company’s final prospectus dated           , 2016, 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 its initial public offering only in the event that (i) the Company redeems the Class A ordinary shares sold in its initial public offering and liquidates because it does not consummate an initial business combination by            , 2018, (ii) the Corporation redeems the Class A ordinary shares sold in its initial public offering in connection with a shareholder vote to amend the Company’s amended and restated memorandum and articles of association to modify the substance and timing of the Company’s obligation to redeem 100% of the Class A ordinary shares if it does not consummate and initial business combination by            , 2018, or (iii) if the holder(s) seek(s) to redeem for cash his, her or its respective Class A ordinary shares in connection with a tender offer (or proxy solicitation, solely in the event the Company seeks shareholder 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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