Fully Paid and Non-Assessable Shares of Common Stock Of

by Pharmasset
April 24th, 2007

EXHIBIT 4.1

 

COMMON STOCK

   COMMON STOCK
PAR VALUE $.001   

THIS CERTIFICATE IS TRANSFERABLE IN

CANTON, MA AND JERSEY CITY, NJ

Certificate

Number

   Shares

[Pharmasset logo]

PHARMASSET, INC.

INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

CUSIP 71715N 10 6

SEE REVERSE SIDE FOR CERTAIN DEFINITIONS

THIS CERTIFIES THAT

is the owner of

FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF

Pharmasset, Inc. (hereinafter called the “Company”), transferable on the books of the Company 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.

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

Dated:

 

/s/ P. Schaefer Price

      

President and CEO

      

/s/ Bryce A. Roberts

       DATED

Secretary

       COUNTERSIGNED AND REGISTERED:
  [Seal]      COMPUTERSHARE TRUST COMPANY, N.A.
       TRANSFER AGENT AND REGISTRAR,
    By      
       AUTHORIZED SIGNATURE

 


PHARMASSET, INC.

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    UNIF TRF MIN ACT -    Custodian (until age )
    survivorship 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.

 

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 Company with full power of substitution in the premises.

 

 

Dated                       20     

      Signature(s) Guaranteed: Medallion Guarantee

Signature:

           Stamp

Signature:

           THE SIGNATURE(s) SHOULD BE GUARANTEED BY
         

AN ELIGIBLE GUARANTOR INSTITUTION (Banks,

Stockbrokers, Savings and Loan Associations and Credit

Untions) WITH MEMBERSHIP IN AN APPROVED

SIGNATURE GUARANTEE MEDALLION PROGRAM

PURSUANT TO S.E.C. RULE 17Ad-15