0001610717-23-000423.txt : 20231222 0001610717-23-000423.hdr.sgml : 20231222 20231222161604 ACCESSION NUMBER: 0001610717-23-000423 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231220 FILED AS OF DATE: 20231222 DATE AS OF CHANGE: 20231222 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: McCarthy Sean A. CENTRAL INDEX KEY: 0001654058 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37587 FILM NUMBER: 231509998 MAIL ADDRESS: STREET 1: 343 OYSTER POINT BLVD. STREET 2: SUITE 100 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: CytomX Therapeutics, Inc. CENTRAL INDEX KEY: 0001501989 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 273521219 STATE OF INCORPORATION: DE 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 form4.xml X0508 4 2023-12-20 0001501989 CytomX Therapeutics, Inc. CTMX 0001654058 McCarthy Sean A. C/O CYTOMX THERAPEUTICS, INC. 151 OYSTER POINT BLVD., STE. 400 SOUTH SAN FRANCISCO CA 94080 true true CEO false Common Stock 2023-12-20 4 S 0 13551 1.3807 D 454704 D Common Stock 93158 I See footnote The shares were sold solely to satisfy tax or other government withholding obligations in connection with the vesting of PSUs previously reported on December 19, 2023. Includes 161,250 restricted stock units. Shares held by Sean A. McCarthy 2018 Trust, of which Reporting Person is trustee. /s/ Lloyd Rowland, as Attorney-in-Fact for Sean A. McCarthy 2023-12-22