SPECIMEN STOCK CERTIFICATE



 Exhibit 4.1 
  

			
	 	 	COMMON STOCK
		
	 NUMBER
  
 VPC
	 	SHARES

  
 [VOYAGER LOGO] 

 
 VOYAGER PHARMACEUTICAL CORPORATION 
  
  
 SEE REVERSE
FOR CERTAIN DEFINITIONS 
  
 CUSIP 929078 20 2 
  
 INCORPORATED UNDER THE LAWS 
     OF THE STATE OF DELAWARE 
  
 THIS CERTIFIES THAT 
  
  
 IS THE OWNER OF 
  
 FULLY PAID AND NON-ASSESSABLE SHARES OF THE PAR VALUE 
 OF $.001 EACH OF THE COMMON STOCK OF 
  
 VOYAGER PHARMACEUTICAL CORPORATION 
  
 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 unless countersigned and registered by the Transfer Agent and Registrar. 
  
 WITNESS the facsimile seal of the Corporation and facsimile signatures of its duly authorized officers. 
  
  

					
	 Dated:
	  	 	 	 
			
	/s/    David J. Corcoran        	  	 [Seal]
	 	/s/    Patrick S. Smith        
	Secretary	  	 	 	President and Chief Executive Officer








 The Corporation will furnish without charge to each stockholder 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 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
                
				
	 	  	 	  	 	  	    (cust)                         (Minor)
				
	TEN ENT –	  	as tenants by the entireties	  	 	  	under Uniform Gifts to Minors Act                 
				
	 	  	 	  	 	  	(State)  
	JT TEN –	  	as joint tenants with right of
survivorship and not as tenants
in common	  	 	  	 

  
 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 
 INDENTIFYING NUMBER OF ASSIGNEE 
  

	
	 
	
	  
	 


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

	 
	
	  
	 

                                       
                                        
                                        
                                        
               shares 
 of the capital 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
                                        

  

			
	 	 	 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) SHOULD 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.