Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
EVNIN LUKE
   2. Issuer Name and Ticker or Trading Symbol
Pharmasset Inc [VRUS] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
Former 10% Owner
(Last)
(First)
(Middle)
C/O MPM ASSET MANAGEMENT, 200 CLARENDON STREET, 54TH FLOOR		 3. Date of Earliest Transaction (Month/Day/Year)
06/23/2008
(Street)

BOSTON, MA 02116		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 06/23/2008   S   26,100 (1) D $ 19.9 2,092,231 I See Footnote (2)
Common Stock 06/23/2008   S   100 (3) D $ 19.91 2,092,131 I See Footnote (4)
Common Stock 06/23/2008   S   100 (5) D $ 19.92 2,092,031 I See Footnote (6)
Common Stock 06/23/2008   S   1,628 (7) D $ 19.93 2,090,403 I See Footnote (8)
Common Stock 06/23/2008   S   100 (9) D $ 19.94 2,090,303 I See Footnote (10)
Common Stock 06/23/2008   S   400 (11) D $ 19.97 2,089,903 I See Footnote (12)
Common Stock 06/23/2008   S   200 (13) D $ 20 2,089,703 I See Footnote (14)
Common Stock 06/23/2008   S   300 (15) D $ 20.06 2,089,403 I See Footnote (16)
Common Stock 06/23/2008   S   9 (17) D $ 20.1 2,089,394 I See Footnote (18)
Common Stock               57,353 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
EVNIN LUKE
C/O MPM ASSET MANAGEMENT
200 CLARENDON STREET, 54TH FLOOR
BOSTON, MA 02116		       Former 10% Owner

Signatures

 /s/ Luke Evnin   06/24/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) These shares were sold as follows: 11,614 shares by BB BioVentures, L.P. ("BBBV"), 1,565 shares by MPM BioVentures Parallel Fund, L.P. ("BV PF"), 139 shares by MPM Asset Management Investors 1999 LLC ("AM 1999"), 675 shares by MPM BioVentures III, L.P., ("BV III"), 10,031 shares by MPM BioVentures III-QP, L.P. ("BV III QP"), 849 shares held by MPM BioVentures III GmbH & Co. Beteiligungs KG ("BV KG"), 304 shares by MPM BioVentures III Parallel Fund, L.P. ("BV III PF"), 237 shares held by MPM Asset Management Investors 2004 BVIII LLC ("AM BV III"), 670 by MPM BioVentures III GP, LP ("BV III GP") and 16 by MPM Capital, L.P. ("MPM LP"). MPM BioVentures I, L.P. ("BV I") and MPM BioVentures I LLC ("BV I LLC") are the direct and indirect general partners of BV PF. BAB BioVentures L.P. ("BAB BV"), BAB BioVentures, N.V. ("BAB NV") and BV I LLC are the direct and indirect general partners of BBBV. The Reporting Person is a manager of AM 1999 and BV I LLC. BV III GP and MPM BioVentures III LLC ("BV III LLC") are the direct and indirect general partners of BV III, BV III QP, BV III PF and BV KG. The Reporting Person is a Series A member of BV III LLC and a manager of AM BV III. The Reporting Person has a controlling interest in MPM LP. The Reporting Person disclaims beneficial ownership of all such shares except to the extent of his proportionate pecuniary interests therein.
(2) The shares are held as follows: 930,959 by BBBV, 125,503 by BV PF, 11,100 by AM 1999, 54,071 by BV III, 804,116 by BV III QP, 67,952 by BV KG, 24,284 by BV III PF, 19,117 by AM BV III, 53,777 by BV III GP and 1,352 by MPM LP. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of their respective proportionate pecuniary interest therein.
(3) The shares were sold as follows: 44 by BBBV, 6 by BV PF, 1 by AM 1999, 3 by BV III, 38 by BV III QP, 3 by BV KG, 1 by BV III PF, 1 by AM BV III and 3 by BV III GP.
(4) The shares are held as follows: 930,915 by BBBV, 125,497 by BV PF, 11,099 by AM 1999, 54,068 by BV III, 804,078 by BV III QP, 67,949 by BV KG, 24,283 by BV III PF, 19,116 by AM BV III, 53,774 by BV III GP and 1,352 by MPM LP. The Reporting Person disclaims beneficial ownership of all such shares except to the extent of his proportionate pecuniary interests therein.
(5) The shares were sold as follows: 44 by BBBV, 6 by BV PF, 1 by AM 1999, 3 by BV III, 38 by BV III QP, 3 by BV KG, 1 by BV III PF, 1 by AM BV III and 3 by BV III GP.
(6) The shares are held as follows: 930,871 by BBBV, 125,491 by BV PF, 11,098 by AM 1999, 54,065 by BV III, 804,040 by BV III QP, 67,946 by BV KG, 24,282 by BV III PF, 19,115 by AM BV III, 53,771 by BV III GP and 1,352 by MPM LP. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of their respective proportionate pecuniary interest therein.
(7) The shares were sold as follows: 726 by BBBV, 98 by BV PF, 7 by AM 1999, 41 by BV III, 626 by BV III QP, 53 by BV KG, 19 by BV III PF, 15 by AM BV III, 42 by BV III GP and 1 by MPM LP.
(8) The shares are held as follows: 930,145 by BBBV, 125,393 by BV PF, 11,091 by AM 1999, 54,024 by BV III, 803,414 by BV III QP, 67,893 by BV KG, 24,263 by BV III PF, 19,100 by AM BV III, 53,729 by BV III GP and 1,351 by MPM LP. The Reporting Person disclaims beneficial ownership of all such shares except to the extent of his proportionate pecuniary interests therein.
(9) The shares were sold as follows: 44 by BBBV, 6 by BV PF, 1 by AM 1999, 3 by BV III, 38 by BV III QP, 3 by BV KG, 1 by BV III PF, 1 by AM BV III and 3 by BV III GP.
(10) The shares are held as follows: 930,101 by BBBV, 125,387 by BV PF, 11,090 by AM 1999, 54,021 by BV III, 803,376 by BV III QP, 67,890 by BV KG, 24,262 by BV III PF, 19,099 by AM BV III, 53,726 by BV III GP and 1,351 by MPM LP. The Reporting Person disclaims beneficial ownership of all such shares except to the extent of his proportionate pecuniary interests therein.
(11) The shares were sold as follows: 178 by BBBV, 24 by BV PF, 2 by AM 1999, 10 by BV III, 154 by BV III QP, 13 by BV KG, 5 by BV III PF, 4 by AM BV III and 10 by BV III GP .
(12) The shares are held as follows: 929,923 by BBBV, 125,363 by BV PF, 11,088 by AM 1999, 54,011 by BV III, 803,222 by BV III QP, 67,877 by BV KG, 24,257 by BV III PF, 19,095 by AM BV III, 53,716 by BV III GP and 1,351 by MPM LP. The Reporting Person disclaims beneficial ownership of all such shares except to the extent of his proportionate pecuniary interests therein.
(13) The shares were sold as follows: 89 by BBBV, 12 by BV PF, 1 by AM 1999, 5 by BV III, 78 by BV III QP, 6 by BV KG, 2 by BV III PF, 2 by AM BV III and 5 by BV III GP.
(14) The shares are held as follows: 929,834 by BBBV, 125,351 by BV PF, 11,087 by AM 1999, 54,006 by BV III, 803,144 by BV III QP, 67,871 by BV KG, 24,255 by BV III PF, 19,093 by AM BV III, 53,711 by BV III GP and 1,351 by MPM LP. The Reporting Person disclaims beneficial ownership of all such shares except to the extent of his proportionate pecuniary interests therein.
(15) The shares were sold as follows: 133 by BBBV, 18 by BV PF, 2 by AM 1999, 8 by BV III, 115 by BV III QP, 10 by BV KG, 3 by BV III PF, 3 by AM BV III and 8 by BV III GP.
(16) The shares are held as follows: 929,701 by BBBV, 125,333 by BV PF, 11,085 by AM 1999, 53,998 by BV III, 803,029 by BV III QP, 67,861 by BV KG, 24,252 by BV III PF, 19,090 by AM BV III, 53,703 by BV III GP and 1,351 by MPM LP. The Reporting Person disclaims beneficial ownership of all such shares except to the extent of his proportionate pecuniary interests therein.
(17) The shares were sold as follows: 4 by BBBV, 1 by BV PF, 3 by BV III QP and 1 by MPM LP.
(18) The shares are held as follows: 929,697 by BBBV, 125,332 by BV PF, 11,085 by AM 1999, 53,998 by BV III, 803,026 by BV III QP, 67,861 by BV KG, 24,252 by BV III PF, 19,090 by AM BV III, 53,703 by BV III GP and 1,350 by MPM LP. The Reporting Person disclaims beneficial ownership of all such shares except to the extent of his proportionate pecuniary interests therein.

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