0001628280-23-039537.txt : 20231117 0001628280-23-039537.hdr.sgml : 20231117 20231117183803 ACCESSION NUMBER: 0001628280-23-039537 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231117 FILED AS OF DATE: 20231117 DATE AS OF CHANGE: 20231117 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: SONG KENNETH CENTRAL INDEX KEY: 0001602787 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41799 FILM NUMBER: 231420384 MAIL ADDRESS: STREET 1: C/O RAYZEBIO, INC. STREET 2: 5505 MOREHOUSE DRIVE, SUITE 300 CITY: SAN DIEGO STATE: CA ZIP: 92121 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: RayzeBio, Inc. CENTRAL INDEX KEY: 0001825367 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 5505 MOREHOUSE DRIVE, SUITE 300 CITY: SAN DIEGO STATE: CA ZIP: 92121 BUSINESS PHONE: (619) 937-2754 MAIL ADDRESS: STREET 1: 5505 MOREHOUSE DRIVE, SUITE 300 CITY: SAN DIEGO STATE: CA ZIP: 92121 4 1 wk-form4_1700264271.xml FORM 4 X0508 4 2023-11-17 0 0001825367 RayzeBio, Inc. RYZB 0001602787 SONG KENNETH C/O RAYZEBIO, INC. 5505 MOREHOUSE DRIVE, SUITE 300 SAN DIEGO CA 92121 1 1 0 0 President and Chief Executive 0 Stock Option (right to buy) 22.72 2023-11-17 4 A 0 480000 0 A 2033-11-16 Common Stock 480000 480000 I By trust The shares subject to the option vest in a series of 48 successive equal monthly installments over the four-year period measured from the date of grant. The Song Family Trust dated October 14, 2016, or the Song Trust. Dr. Song is a trustee of the Song Trust, and may be deemed to have voting and investment power over the shares held by the Song Trust. /s/ Jeff Woodley, Attorney-in-Fact 2023-11-17