0001209191-23-039802.txt : 20230626 0001209191-23-039802.hdr.sgml : 20230626 20230626191502 ACCESSION NUMBER: 0001209191-23-039802 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230622 FILED AS OF DATE: 20230626 DATE AS OF CHANGE: 20230626 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Becker Daniel J. CENTRAL INDEX KEY: 0001752139 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40431 FILM NUMBER: 231043694 MAIL ADDRESS: STREET 1: C/O NEW LEAF VENTURE PARTNERS STREET 2: TIMES SQ TOWER, 7 TIMES SQ, STE 3502 CITY: NEW YORK STATE: NY ZIP: 10036 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Day One Biopharmaceuticals, Inc. CENTRAL INDEX KEY: 0001845337 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 832415215 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2000 SIERRA POINT PARKWAY, SUITE 501 CITY: BRISBANE STATE: CA ZIP: 94005 BUSINESS PHONE: 650 484-0899 MAIL ADDRESS: STREET 1: 2000 SIERRA POINT PARKWAY, SUITE 501 CITY: BRISBANE STATE: CA ZIP: 94005 FORMER COMPANY: FORMER CONFORMED NAME: Day One Biopharmaceuticals Holding Co LLC DATE OF NAME CHANGE: 20210209 4 1 doc4.xml FORM 4 SUBMISSION X0407 4 2023-06-22 0 0001845337 Day One Biopharmaceuticals, Inc. DAWN 0001752139 Becker Daniel J. 2000 SIERRA POINT PARKWAY, SUITE 501 BRISBANE CA 94005 1 0 0 0 0 Director Stock Option (Right to buy Common Stock) 12.69 2023-06-22 4 A 0 37500 0.00 A 2033-06-21 Common Stock 37500 37500 D The option vests as to 1/12th of the total grant on each monthly anniversary, beginning on July 22, 2023, subject to the Reporting Person's provision of service to the Issuer on each vesting date. /s/ Charles N. York II, as Attorney-in-Fact for Reporting Person 2023-06-26