Specimen Common Stock Certificate



 Exhibit 4.1 
  

	
	



 016570| 003590|127C|RESTRICTED||4|057-423 
 COMMON STOCK 
 PAR VALUE $0.0001 
 COMMON STOCK 
 THIS CERTIFICATE IS TRANSFERABLE IN CANTON, MA AND NEW YORK, NY 
 Certificate Number 
 ZQ 000000 
 Shares 
 * * 600620 * * * * * * 
 * * * 600620 * * * * * 
 * * * * 600620 * * * *

 * * * * * 600620 * * * 
 * * * * * * 600620 * * 
 SORRENTO
THERAPEUTICS, INC. 
 INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE 
 THIS CERTIFIES THAT 
 MR. SAMPLE & MRS. SAMPLE & MR. SAMPLE & MRS. SAMPLE 
 CUSIP XXXXXX XX X 
 SEE REVERSE FOR CERTAIN DEFINITIONS 
 is the owner of 
 * * * SIX HUNDRED THOUSAND SIX HUNDRED AND TWENTY* * * 
 FULLY-PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK OF 
 Sorrento Therapeutics, Inc.
(hereinafter called the “Company”), transferable on the books of the Company in person or by duly authorized attorney, upon surrender of this Certificate properly endorsed. This Certificate and the shares represented hereby, are issued and
shall be held subject to all of the provisions of the Certificate of Incorporation, as amended, and the Bylaws, as amended, of the Company (copies of which are on file with the Company and with the Transfer Agent), to all of which each holder, by
acceptance hereof, assents. This Certificate is not valid unless countersigned and registered by the Transfer Agent and Registrar. 
 Witness the facsimile seal of the Company and the facsimile signatures of its duly authorized officers. 
 FACSIMILE SIGNATURE TO COME 
 Chairman & Chief
Executive Officer 
 FACSIMILE SIGNATURE TO COME 
 Chief Scientific Officer & Secretary 
 SORRENTO THERAPEUTICS, INC. 
 SEAL 
 2009 
 DELAWARE 
 DATED <<Month
Day, Year>> COUNTERSIGNED AND REGISTERED: 
 COMPUTERSHARE TRUST COMPANY, N.A. 
 TRANSFER AGENT AND REGISTRAR, 
 By 
 AUTHORIZED SIGNATURE

 1234567 
 SORRENTO THERAPEUTICS, INC. 
 PO BOX 43004, Providence,
RI 02940-3004 
 MR A SAMPLE 
 DESIGNATION (IF ANY) 
 ADD 1

 ADD 2 
 ADD 3 
 ADD 4 
 CUSIP XXXXXX XX X Holder ID XXXXXXXXXX 
 Insurance Value 1,000,000.00 
 Number of Shares 123456 
 DTC 12345678 123456789012345 
 Certificate Numbers Num/No. Denom. Total 
 1234567890/1234567890 1 1 1 
 1234567890/1234567890 2 2 2 
 1234567890/1234567890 3 3 3 
 1234567890/1234567890 4 4 4 
 1234567890/1234567890 5 5 5 
 1234567890/1234567890 6 6 6 
 Total Transaction 7 







  
 SORRENTO THERAPEUTICS, INC. 
 TRANSFER FEE $25.00 
  

													
	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	 		 	 UNIF TRF MIN ACT
	 	                                        
 Custodian (until age.        )                         
           

	 	 		 	   and not as tenants in common
	 		 		 	             (Cust)
	 	                               (Minor)

	 	 		 		 		 		 	under Uniform Transfers to Minors Act.                            

	 	 		 		 		 		 	                                         
                            (State)

	 	 	 	 	 Additional abbreviations may also be used though not in the above
list.


 THE COMPANY WILL FURNISH WITHOUT CHARGE TO EACH SHAREHOLDER WHO SO REQUESTS, A SUMMARY OF THE POWERS,
DESIGNATIONS, PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH CLASS OF STOCK OF THE COMPANY 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 ARTICLES OF INCORPORATION OF THE COMPANY, AS AMENDED, AND THE RESOLUTIONS OF THE BOARD OF DIRECTORS OF THE COMPANY, AND THE AUTHORITY OF THE BOARD OF DIRECTORS TO
DETERMINE VARIATIONS FOR FUTURE SERIES. SUCH REQUEST MAY BE MADE TO THE OFFICE OF THE SECRETARY OF THE COMPANY OR TO THE TRANSFER AGENT. THE BOARD OF DIRECTORS MAY REQUIRE THE OWNER OF A LOST OR DESTROYED STOCK CERTIFICATE, OR HIS LEGAL
REPRESENTATIVES, TO GIVE THE COMPANY A BOND TO INDEMNIFY IT AND ITS TRANSFER AGENTS AND REGISTRARS AGAINST ANY CLAIM THAT MAY BE MADE AGAINST THEM ON ACCOUNT OF THE ALLEGED LOSS OR DESTRUCTION OF ANY SUCH CERTIFICATE. 
  

			
		 	PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE
	For value received,
                             hereby sell, assign and transfer unto	 	 

  
  
 (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL 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:	 	                                       
                           20             
                           	 	 	  	 Signature(s) Guaranteed:
Medallion Guarantee Stamp
 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.

	  
 Signature:
	 	  
  
	 	 	  
	  
 Signature:
	 	  
  
	 	 	  
		 	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.