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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. )*
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 persons 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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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) |
Not Applicable. |
Item 7.
|
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person |
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
|