0001567619-23-002174.txt : 20230209 0001567619-23-002174.hdr.sgml : 20230209 20230209170012 ACCESSION NUMBER: 0001567619-23-002174 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230207 FILED AS OF DATE: 20230209 DATE AS OF CHANGE: 20230209 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Koppikar Utpal CENTRAL INDEX KEY: 0001742696 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36548 FILM NUMBER: 23607132 MAIL ADDRESS: STREET 1: C/O ATARA BIOTHERAPEUTICS, INC. STREET 2: 611 GATEWAY BLVD, SUITE 900 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Atara Biotherapeutics, Inc. CENTRAL INDEX KEY: 0001604464 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 460920988 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2380 CONEJO SPECTRUM ST STREET 2: SUITE 200 CITY: THOUSAND OAKS STATE: CA ZIP: 91320 BUSINESS PHONE: 805-623-4244 MAIL ADDRESS: STREET 1: 2380 CONEJO SPECTRUM ST STREET 2: SUITE 200 CITY: THOUSAND OAKS STATE: CA ZIP: 91320 4 1 doc1.xml FORM 4 X0306 4 2023-02-07 0 0001604464 Atara Biotherapeutics, Inc. ATRA 0001742696 Koppikar Utpal C/O ATARA BIOTHERAPEUTICS, INC. 2380 CONEJO SPECTRUM ST, SUITE 200 THOUSAND OAKS CA 91320 0 1 0 0 Chief Financial Officer Common Stock 2023-02-07 4 S 0 2485 5.46 D 188849 D Shares sold pursuant to a 10b5-1 arrangement to satisfy tax obligations in connection with the vesting of previously granted restricted stock units. /s/ Jeff Kiekhofer, Attorney-in-Fact for Utpal Koppikar 2023-02-09