0001209191-23-049943.txt : 20230919 0001209191-23-049943.hdr.sgml : 20230919 20230919161927 ACCESSION NUMBER: 0001209191-23-049943 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230918 FILED AS OF DATE: 20230919 DATE AS OF CHANGE: 20230919 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Gerber Hans-Peter CENTRAL INDEX KEY: 0001992979 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38662 FILM NUMBER: 231264045 MAIL ADDRESS: STREET 1: C/O SUTRO BIOPHARMA, INC. STREET 2: 111 OYSTER POINT BOULEVARD CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: SUTRO BIOPHARMA, INC. CENTRAL INDEX KEY: 0001382101 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 452441988 FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 111 OYSTER POINT BLVD. CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 BUSINESS PHONE: 650-392-8412 MAIL ADDRESS: STREET 1: 111 OYSTER POINT BLVD. CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 FORMER COMPANY: FORMER CONFORMED NAME: SUTRO BIOPHARMA INC DATE OF NAME CHANGE: 20061127 4 1 doc4.xml FORM 4 SUBMISSION X0508 4 2023-09-18 0 0001382101 SUTRO BIOPHARMA, INC. STRO 0001992979 Gerber Hans-Peter C/O SUTRO BIOPHARMA, INC. 111 OYSTER POINT BOULEVARD SOUTH SAN FRANCISCO CA 94080 0 1 0 0 Chief Scientific Officer 0 Stock Option (right to buy) 3.77 2023-09-18 4 A 0 175000 0.00 A 2033-09-18 Common Stock 175000 175000 D Restricted Stock Unit (RSU) 2023-09-18 4 A 0 150000 0.00 A 2027-09-18 Common Stock 150000 150000 D 25% of the option award vests on September 18, 2024. The remainder vests ratably as to 1/48th of the total award monthly thereafter, subject to the reporting person's continued service to the Issuer on each vesting date. Each RSU represents a contingent right to receive one (1) share of the Issuer's Common Stock upon settlement. The RSU award vests annually as to 1/4th of the total award beginning on September 18, 2024, subject to the reporting person's continued service to the Issuer on each vesting date. /s/ Edward C. Albini as attorney-in-fact for Hans-Peter Gerber 2023-09-19