0001140361-23-040561.txt : 20230818 0001140361-23-040561.hdr.sgml : 20230818 20230818182514 ACCESSION NUMBER: 0001140361-23-040561 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230816 FILED AS OF DATE: 20230818 DATE AS OF CHANGE: 20230818 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Nguyen AnhCo CENTRAL INDEX KEY: 0001977970 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36548 FILM NUMBER: 231186923 MAIL ADDRESS: STREET 1: 2380 CONEJO SPECTRUM ST STREET 2: SUITE 200 CITY: THOUSAND OAKS STATE: CA ZIP: 91320 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 form4.xml X0508 4 2023-08-16 0001604464 Atara Biotherapeutics, Inc. ATRA 0001977970 Nguyen AnhCo C/O ATARA BIOTHERAPEUTICS, INC. 2380 CONEJO SPECTRUM STREET, SUITE 200 THOUSAND OAKS CA 91320 true EVP, Chief Sci. & Tech Officer false Common Stock 2023-08-16 4 S 0 5849 1.652 D 295276 D Common Stock 2023-08-16 4 S 0 9277 1.653 D 285999 D Shares sold automatically to satisfy tax withholding obligations in connection with the vesting of previously granted restricted stock units, pursuant to a sale-to-cover provision in the award agreement. The sale price of the reporting person's shares represents the weighted average price of all shares sold by a broker on August 16, 2023 and August 17, 2023 on behalf of a group of employees of the Issuer to satisfy the payment of withholding tax liability of such employee. /s/ Jeff Kiekhofer, Attorney-in-Fact for AnhCo Nguyen 2023-08-18