0000899243-16-033012.txt : 20161109 0000899243-16-033012.hdr.sgml : 20161109 20161109160519 ACCESSION NUMBER: 0000899243-16-033012 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20161107 FILED AS OF DATE: 20161109 DATE AS OF CHANGE: 20161109 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: CytomX Therapeutics, Inc. CENTRAL INDEX KEY: 0001501989 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 343 OYSTER POINT BLVD. STREET 2: SUITE 100 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 BUSINESS PHONE: 650.515.3185 MAIL ADDRESS: STREET 1: 343 OYSTER POINT BLVD. STREET 2: SUITE 100 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 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: 161984218 MAIL ADDRESS: STREET 1: 40 LANDSDOWNE STREET CITY: CAMBRIDGE STATE: MA ZIP: 02139 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: 161984219 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: 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: 161984220 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: TEPPER ROBERT I CENTRAL INDEX KEY: 0001192595 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37587 FILM NUMBER: 161984221 MAIL ADDRESS: STREET 1: 40 LANDSDOWNE STREET CITY: CAMBRIDGE STATE: MA ZIP: 02139 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: 161984222 MAIL ADDRESS: STREET 1: 75 SIDNEY 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: 161984223 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 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2016-11-07 0 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 2016-11-07 4 J 0 1000000 D 7670348 D On November 7, 2016, Third Rock Ventures, L.P. ("TRV") distributed, 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. /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. 2016-11-09 /s/ Kevin Gillis, Chief Financial Officer of TRV GP, LLC, general partner of Third Rock Ventures GP, L.P. 2016-11-09 /s/ Kevin Gillis, Chief Financial Officer of TRV GP, LLC 2016-11-09 /s/ Kevin Gillis by power of attorney for Mark Levin 2016-11-09 /s/ Kevin Gillis by power of attorney for Kevin Starr 2016-11-09 /s/ Kevin Gillis by power of attorney for Robert I. Tepper 2016-11-09