0000899243-17-024464.txt : 20171019
0000899243-17-024464.hdr.sgml : 20171019
20171019160034
ACCESSION NUMBER: 0000899243-17-024464
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20171018
FILED AS OF DATE: 20171019
DATE AS OF CHANGE: 20171019
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: STARR KEVIN P
CENTRAL INDEX KEY: 0001192603
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-37587
FILM NUMBER: 171144785
MAIL ADDRESS:
STREET 1: 75 SIDNEY STREET
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: TEPPER ROBERT I
CENTRAL INDEX KEY: 0001192595
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-37587
FILM NUMBER: 171144786
MAIL ADDRESS:
STREET 1: 40 LANDSDOWNE STREET
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: LEVIN MARK J
CENTRAL INDEX KEY: 0001180428
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-37587
FILM NUMBER: 171144787
MAIL ADDRESS:
STREET 1: 40 LANDSDOWNE STREET
CITY: CAMBRIDGE
STATE: MA
ZIP: 02139
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: THIRD ROCK VENTURES LP
CENTRAL INDEX KEY: 0001408591
STATE OF INCORPORATION: DE
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-37587
FILM NUMBER: 171144790
BUSINESS ADDRESS:
STREET 1: 29 NEWBURY STREET
STREET 2: SUITE 401
CITY: BOSTON
STATE: MA
ZIP: 02116
BUSINESS PHONE: 617-859-3099
MAIL ADDRESS:
STREET 1: 29 NEWBURY STREET
STREET 2: SUITE 401
CITY: BOSTON
STATE: MA
ZIP: 02116
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Third Rock Ventures GP, L.P.
CENTRAL INDEX KEY: 0001578976
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-37587
FILM NUMBER: 171144789
BUSINESS ADDRESS:
STREET 1: C/O THIRD ROCK VENTURES
STREET 2: 29 NEWBURY STREET, 3RD FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
BUSINESS PHONE: 617-585-2000
MAIL ADDRESS:
STREET 1: C/O THIRD ROCK VENTURES
STREET 2: 29 NEWBURY STREET, 3RD FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: TRV GP, LLC
CENTRAL INDEX KEY: 0001578973
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-37587
FILM NUMBER: 171144788
BUSINESS ADDRESS:
STREET 1: C/O THIRD ROCK VENTURES
STREET 2: 29 NEWBURY STREET, 3RD FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
BUSINESS PHONE: 617-585-2000
MAIL ADDRESS:
STREET 1: C/O THIRD ROCK VENTURES
STREET 2: 29 NEWBURY STREET, 3RD FLOOR
CITY: BOSTON
STATE: MA
ZIP: 02116
ISSUER:
COMPANY DATA:
COMPANY CONFORMED NAME: CytomX Therapeutics, Inc.
CENTRAL INDEX KEY: 0001501989
STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834]
IRS NUMBER: 273521219
FISCAL YEAR END: 1231
BUSINESS ADDRESS:
STREET 1: 151 OYSTER POINT BLVD.
STREET 2: SUITE 400
CITY: SOUTH SAN FRANCISCO
STATE: CA
ZIP: 94080
BUSINESS PHONE: 650.515.3185
MAIL ADDRESS:
STREET 1: 151 OYSTER POINT BLVD.
STREET 2: SUITE 400
CITY: SOUTH SAN FRANCISCO
STATE: CA
ZIP: 94080
4
1
doc4.xml
FORM 4 SUBMISSION
X0306
4
2017-10-18
1
0001501989
CytomX Therapeutics, Inc.
CTMX
0001408591
THIRD ROCK VENTURES LP
29 NEWBURY STREET, 3RD FLOOR
BOSTON
MA
02116
0
0
1
0
0001578976
Third Rock Ventures GP, L.P.
29 NEWBURY STREET, 3RD FLOOR
BOSTON
MA
02116
0
0
1
0
0001578973
TRV GP, LLC
29 NEWBURY STREET, 3RD FLOOR
BOSTON
MA
02116
0
0
1
0
0001180428
LEVIN MARK J
29 NEWBURY STREET, 3RD FLOOR
BOSTON
MA
02116
0
0
1
0
0001192603
STARR KEVIN P
29 NEWBURY STREET, 3RD FLOOR
BOSTON
MA
02116
0
0
1
0
0001192595
TEPPER ROBERT I
29 NEWBURY STREET, 3RD FLOOR
BOSTON
MA
02116
0
0
1
0
Common Stock
2017-10-18
4
J
0
1000000
D
3320348
D
Common Stock
116927
D
Common Stock
145286
D
Common Stock
85509
D
Pursuant to a Rule 10b5-1 trading plan adopted by Third Rock Ventures, L.P. ("TRV"), TRV distributed on October 18, 2017, for no consideration, 1,000,000 shares of Common Stock of the Issuer (the "Shares") to its limited partners and to Third Rock Ventures GP, L.P. ("TRV GP"), the general partner of TRV, representing each such partner's pro rata interest in such Shares. On the same date, TRV GP distributed, for no consideration, the Shares it received in the distribution by TRV to its partners, representing each such partner's pro rata interest in such Shares. All of the aforementioned distributions were made in accordance with the exemptions afforded by Rules 16a-13 and 16a-9 of the Securities Exchange Act of 1934, as amended.
These shares are directly held by TRV. The general partner of TRV is TRV GP. The general partner of TRV GP is TRV GP, LLC ("TRV GP LLC"). The individual managers of TRV GP LLC are Mark Levin ("Levin"), Kevin Starr ("Starr") and Dr. Robert Tepper ("Tepper"). Each of TRV GP, TRV GP LLC, Levin, Starr and Tepper disclaims beneficial ownership of the shares except to the extent of its or his pecuniary interest therein, if any, and this report shall not be deemed an admission that it or he is the beneficial owner of such shares.
These shares are directly held by Starr. Includes Shares received in the distributions described in footnote (1) above.
These shares are directly held by Levin. Includes Shares received in the distributions described in footnote (1) above.
These shares are directly held by Tepper. Includes Shares received in the distributions described in footnote (1) above.
/s/ Kevin Gillis, Chief Financial Officer of TRV GP, LLC, general partner of Third Rock Ventures GP, L.P., general partner of Third Rock Ventures, L.P.
2017-10-19
/s/ Kevin Gillis, Chief Financial Officer of TRV GP, LLC, general partner of Third Rock Ventures GP, L.P.
2017-10-19
/s/ Kevin Gillis, Chief Financial Officer of TRV GP, LLC
2017-10-19
/s/ Kevin Gillis by power of attorney for Mark Levin
2017-10-19
/s/ Kevin Gillis by power of attorney for Kevin Starr
2017-10-19
/s/ Kevin Gillis by power of attorney for Robert I. Tepper
2017-10-19