Stock Specimen



 Exhibit 4.1 
 

 
  







 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	 		 		 	under Uniform Gifts to Minors Act
		 	   and not as tenants in common	 		 		 	  

		 		 		 		 	(State)
							
		 		 		 	UNIF TRANS MIN ACT–	 	  
	 	Custodian	 	  

		 		 		 		 	(Cust)	 		 	(Minor)
		 		 		 		 	under Uniform Transfers 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
 IDENTIFICATION NUMBER OF ASSIGNEE
  
	 	 	 	 
	 		
	 	 		 	

  

							
	  

	Please print or typewrite name and address including postal zip code of assignee
	
	  

	
	  

		
	  
	 	Shares
	of the Common Stock evidenced by this 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) 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.

 THE CORPORATION HAS MORE THAN ONE CLASS OF STOCK AUTHORIZED TO BE ISSUED. THE CORPORATION WILL FURNISH WITHOUT
CHARGE TO EACH STOCKHOLDER WHO SO REQUESTS, IN WRITING, A SUMMARY OF THE POWERS, DESIGNATIONS, PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH CLASS OF STOCK OF THE CORPORATION AND THE QUALIFICATIONS, LIMITATIONS OR
RESTRICTIONS OF SUCH PREFERENCES AND RIGHTS, AND THE VARIATIONS IN RIGHTS, PREFERENCES AND LIMITATIONS DETERMINED FOR EACH SERIES, WHICH ARE FIXED BY THE CERTIFICATE OF INCORPORATION OF THE CORPORATION, AS AMENDED, AND THE RESOLUTIONS OF THE BOARD
OF DIRECTORS OF THE CORPORATION, AND THE AUTHORITY OF THE BOARD OF DIRECTORS TO DETERMINE VARIATIONS FOR FUTURE SERIES. SUCH REQUEST MAY BE MADE, IN WRITING, TO THE OFFICE OF THE SECRETARY OF THE CORPORATION OR TO THE TRANSFER AGENT. 
 KEEP THIS CERTIFICATE IN A SAFE PLACE. IF IT IS LOST, STOLEN, MUTILATED OR DESTROYED, THE CORPORATION WILL REQUIRE A BOND OF INDEMNITY AS A CONDITION TO THE ISSUANCE
OF A REPLACEMENT CERTIFICATE. 
  

					
	AMERICAN BANK NOTE COMPANY	  		  	PRODUCTION COORDINATOR: DENISE LITTLE 931-490-1706

	711 ARMSTRONG LANE	  		  	PROOF OF: NOVEMBER 9, 2007
	COLUMBIA, TENNESSEE 38401	  		  	ELIXIR PHARMACEUTICALS, INC.
	(931) 388-3003	  		  	TSB 28613 FC
	SALES: CHARLES SHARKEY 302-731-7088
	  		  	OPERATOR: AP/R
	7 / LIVE JOBS / E / ELIXIR 28613 FC
	  		  	Rev. 1

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