EX-4.1



 Exhibit 4.1 
 




 
 NUMBER 

CNA 
 Conatus Pharmaceuticals 
 Conatus Pharmaceuticals
Inc. 
 SHARES 
 COMMON STOCK 
 INCORPORATED UNDER THE LAWS OF THE
STATE OF DELAWARE 
 PAR VALUE $0.0001 PER SHARE 

CUSIP 20600T 10 8 
 SEE REVERSE SIDE FOR CERTAIN DEFINITIONS AND RESTRICTIONS 
 THIS CERTIFIES THAT 
 SPECIMEN 

IS THE RECORD HOLDER OF 
 FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK, PAR VALUE $0.0001 PER SHARE, OF 
 Conatus Pharmaceuticals Inc. 
 transferable on the
books of the Corporation by the holder hereof in person or by duly authorized Attorney, upon surrender of this Certificate, properly endorsed. This Certificate is not valid until countersigned and registered by the Transfer Agent and Registrar.

 IN WITNESS WHEREOF, the Corporation has caused this certificate to be executed by the facsimile signatures of
its duly authorized officers. 
 Dated: 
 CHIEF FINANCIAL OFFICER AND SECRETARY 
 PRESIDENT
AND CHIEF EXECUTIVE OFFICER 
 COUNTERSIGNED AND REGISTERED: 

AMERICAN STOCK TRANSFER & TRUST COMPANY, LLC 
 (Brooklyn, NY) 
 TRANSFER AGENT AND REGISTRAR

 BY 
 AUTHORIZED SIGNATURE 
 ©SECURITY COLUMBIAN

 UNITED STATES BANKNOTE CORPORATION 







 The Corporation is authorized to issue more than one class of stock. The Corporation shall 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 of the Corporation or series thereof and the qualifications, limitations or
restrictions of such preferences and/or rights. Such requests shall be made to the Corporation’s Secretary at the principal office of the Corporation. 
 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
	TEN ENT	  	–	  	as tenants by the entireties
	JT TEN	  	–	  	 as joint tenants with right
 of
survivorship and not as
 tenants in common



 


					
	UNIF GIFT MIN ACT–	 	                Custodian        
            
		 	(Cust)    	 	    (Minor)
		 	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
	
	  

	
	  

		
	  
	 	Shares
	of the common stock represented by the within Certificate, and do hereby irrevocably constitute and
appoint


			
		
	  
	 	Attorney
	to transfer the said stock on the books of the within named Corporation with full power of substitution in the
premises.

  

			
		
	 Dated
	 	  



 

			
	X	 	  

		
	X	 	  

	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
WHATSOEVER.


 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.

 KEEP THIS CERTIFICATE IN A SAFE PLACE. IF IT IS LOST, STOLEN OR DESTROYED THE CORPORATION WILL REQUIRE A BOND OF
INDEMNITY AS A CONDITION TO THE ISSUANCE OF A REPLACEMENT CERTIFICATE.