sc13g
 

     
 
OMB APPROVAL
 
 
OMB Number: 3235-0145
 
 
Expires: February 28, 2009
 
 
Estimated average burden hours per response...10.4
 
 
 
 

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. )*

CADENCE PHARMACEUTICALS INC.
(Name of Issuer)
Common Stock
(Title of Class of Securities)
12738T100
(CUSIP Number)
December 31, 2007
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

     o Rule 13d-1(b)

     o Rule 13d-1(c)

     þ Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

 
 


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 VERSANT VENTURES II, LLC
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  DELAWARE
       
  5   SOLE VOTING POWER:
     
NUMBER OF   1,999,998 shares
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   0
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   1,999,998 shares
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    0
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,999,998 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.9%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  OO
2(a)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 VERSANT VENTURE CAPITAL II, L.P.
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  DELAWARE
       
  5   SOLE VOTING POWER:
     
NUMBER OF   1,945,686 shares
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   0
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   1,945,686 shares
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    0
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,945,686 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.7%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  PN
2(b)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 VERSANT SIDE FUND II, L.P.
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  DELAWARE
       
  5   SOLE VOTING POWER:
     
NUMBER OF   17,389 shares
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   0
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   17,389 shares
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    0
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  17,389 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  0.06%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  PN
2(c)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 VERSANT AFFILIATES FUND II-A, LP
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  DELAWARE
       
  5   SOLE VOTING POWER:
     
NUMBER OF   36,923 shares
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   0
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   36,923 shares
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    0
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  36,923 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  0.13%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  PN
2(d)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 BRIAN G. ATWOOD
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  UNITED STATES
       
  5   SOLE VOTING POWER:
     
NUMBER OF   37,500
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   1,999,998 shares
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   37,500
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    1,999,998 shares
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  2,037,498 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  7.0%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  IN
2(e)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 BRADLEY J. BOLZON
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  CANADA
       
  5   SOLE VOTING POWER:
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   1,999,998 shares
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   0
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    1,999,998 shares
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,999,998 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.9%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  IN
2(f)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 SAMUEL D. COLELLA
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  UNITED STATES
       
  5   SOLE VOTING POWER:
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   1,999,998 shares
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   0
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    1,999,998 shares
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,999,998 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.9%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  IN
2(g)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 ROSS A. JAFFE
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  UNITED STATES
       
  5   SOLE VOTING POWER:
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   1,999,998 shares
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   0
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    1,999,998 shares
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,999,998 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.9%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  IN
2(h)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 WILLIAM J. LINK
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  UNITED STATES
       
  5   SOLE VOTING POWER:
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   1,999,998 shares
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   0
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    1,999,998 shares
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,999,998 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.9%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  IN
2(i)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 BARBARA N. LUBASH
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  UNITED STATES
       
  5   SOLE VOTING POWER:
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   1,999,998 shares
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   0
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    1,999,998 shares
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,999,998 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.9%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  IN
2(j)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 DONALD B. MILDER
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  UNITED STATES
       
  5   SOLE VOTING POWER:
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   1,999,998 shares
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   0
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    1,999,998 shares
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,999,998 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.9%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  IN
2(k)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 REBECCA B. ROBERTSON
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  UNITED STATES
       
  5   SOLE VOTING POWER:
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   1,999,998 shares
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   0
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    1,999,998 shares
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,999,998 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.9%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  IN
2(l)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
 CAMILLE D. SAMUELS
     
    I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  UNITED STATES
       
  5   SOLE VOTING POWER:
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   1,999,998 shares
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   0
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    1,999,998 shares
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,999,998 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.9%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  IN
2(m)


 

                     
CUSIP No.
 
12738T100  
 

 

           
1   NAMES OF REPORTING PERSONS:
CHARLES M. WARDEN

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY):
     
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS):

  (a)   o
  (b)   o
     
3   SEC USE ONLY:
   
   
     
4   CITIZENSHIP OR PLACE OF ORGANIZATION:
   
  UNITED STATES
       
  5   SOLE VOTING POWER:
     
NUMBER OF   0
       
SHARES 6   SHARED VOTING POWER:
BENEFICIALLY    
OWNED BY   1,999,998 shares
       
EACH 7   SOLE DISPOSITIVE POWER:
REPORTING    
PERSON   0
       
WITH: 8   SHARED DISPOSITIVE POWER:
     
    1,999,998 shares
     
9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
   
  1,999,998 shares
     
10   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS):
   
  o
     
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
   
  6.9%
     
12   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS):
   
  IN
2(n)


 

 
Item 1.
     (a) Name of Issuer
  CADENCE PHARMACEUTICALS, INC.
 
     (b) Address of Issuer’s Principal Executive Offices
  12481 HIGH BLUFF DRIVE, SUITE 200, SAN DIEGO CA 92130
Item 2.
     (a) Name of Person Filing
     
 
   
Versant Ventures II, LLC
  (VVII-LLC)
Versant Venture Capital II, L.P.
  (VVC-II)
Versant Side Fund II, L.P.
  (VSF-II)
Versant Affiliates Fund II-A, L.P.
  (VAF-IIA)
Brian G. Atwood
  (BGA)
Bradley J. Bolzon
  (BJB)
Samuel D. Colella
  (SDC)
Ross A. Jaffe
  (RAJ)
William J. Link
  (WJL)
Barbara N. Lubash
  (BNL)
Donald B. Milder
  (DBM)
Rebecca B. Robertson
  (RBR)
Camille D. Samuels
  (CDS)
Charles M. Warden
  (CMW)
VVII-LLC is the General Partner of VVC-II, VSF-II & VAF-IIA. BGA, BJB, SDC, RAJ, WJL, BNL, DBM, RBR, CDS & CMW are Managing Directors of VVII-LLC
     (b) Address of Principal Business Office or, if none, Residence
 Versant Ventures, 3000 Sand Hill Road, #4-210, Menlo Park, CA 94025
 
     (c) Citizenship
VVII-LLC, VVC-II, VSF-II & VAF-IIA = Delaware
BGA, SDC, RAJ, WJL, BNL, DBM, RBR, CDS and CMW = United States; BJB = Canada
 
     (d) Title of Class of Securities
 Common Stock
 
     (e) CUSIP Number
 12738T100
Item 3. If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
     (a) o Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
     (b) o Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
     (c) o Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).
     (d) o Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8).
 


 

     (e) o An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);
     (f) o An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);
     (g) o A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
     (h) o A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
     (i) o A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
     (j) o Group, in accordance with §240.13d-1(b)(1)(ii)(J).
    Not Applicable.
3
 


 

 
Item 4. Ownership
Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.
See Rows 5 through 11 of cover pages
 
Item 5. Ownership of Five Percent or Less of a Class
If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following     o.
Item 6. Ownership of More than Five Percent on Behalf of Another Person
Under certain circumstances set forth in the Limited Partnership Agreements of VVC-II, VSF-II & VAF-IIA, the General Partner and Limited Partners of each such Fund have the right to receive dividends from, or proceeds from the sale of, the Common Stock of Issuer owned by each such Fund.
     
Item 7.
  Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person
Not Applicable.
Item 8. Identification and Classification of Members of the Group
Not Applicable.
Item 9. Notice of Dissolution of Group
Not Applicable.
Item 10. Certification
Not Applicable.
EXHIBITS
A. Joint Filing Statement
4
 


 

 
SIGNATURE
          After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
          Dated: February 11, 2008
         
 
       
 
  VERSANT VENTURE CAPITAL II, L.P.    
 
  By its General Partner, Versant Ventures II, LLC    
 
       
 
  VERSANT SIDE FUND II, L.P.    
 
  By its General Partner, Versant Ventures II, LLC    
 
       
 
  VERSANT AFFILIATES FUND II-A, L.P.    
 
  By its General Partner, Versant Ventures II, LLC    
 
       
 
       
 
  /s/ Brian G. Atwood
 
Brian G. Atwood, Managing Director
   
5
 


 

 
 
EXHIBIT A
JOINT FILING STATEMENT
          Pursuant to Rule 13d-1(f)(1), we, the undersigned, hereby express our agreement that the attached Schedule 13G is filed on behalf of each of us.
Date: February 11, 2008

VERSANT VENTURE CAPITAL II, L.P.
    By its General Partner, Versant Ventures II, LLC
VERSANT SIDE FUND II, L.P.
    By its General Partner, Versant Ventures II, LLC
VERSANT AFFILIATES FUND II-A, L.P.
    By its General Partner, Versant Ventures II, LLC
/s/ Brian G. Atwood
Brian G. Atwood, Managing Director
Brian G. Atwood
    Bradley J. Bolzon
    Samuel D. Colella
    Ross A. Jaffe
    William J. Link
    Barbara N. Lubash
    Donald B. Milder
    Rebecca B. Robertson
    Camille D. Samuels
    Charles M. Warden
/s/ Robin L. Praeger
Robin L. Praeger, Authorized Signer
6