0000899243-21-048612.txt : 20211216 0000899243-21-048612.hdr.sgml : 20211216 20211216163512 ACCESSION NUMBER: 0000899243-21-048612 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211215 FILED AS OF DATE: 20211216 DATE AS OF CHANGE: 20211216 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Humphrey Jeffrey CENTRAL INDEX KEY: 0001816944 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40499 FILM NUMBER: 211498191 MAIL ADDRESS: STREET 1: C/O CONSTELLATION PHARMACEUTICALS, INC. STREET 2: 215 FIRST STREET, SUITE 200 CITY: CAMBRIDGE STATE: MA ZIP: 02142 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Cyteir Therapeutics, Inc. CENTRAL INDEX KEY: 0001662244 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 455429901 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 128 SPRING STREET STREET 2: BUILDING A, SUITE 510 CITY: LEXINGTON STATE: MA ZIP: 02421 BUSINESS PHONE: 857-285-4140 MAIL ADDRESS: STREET 1: 128 SPRING STREET STREET 2: BUILDING A, SUITE 510 CITY: LEXINGTON STATE: MA ZIP: 02421 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2021-12-15 0 0001662244 Cyteir Therapeutics, Inc. CYT 0001816944 Humphrey Jeffrey 128 SPRING ST, BUILDING A, SUITE 510 LEXINGTON MA 02421 1 0 0 0 Stock Option (Right to Buy) 10.75 2021-12-15 4 A 0 28300 0.00 A 2031-12-15 Common Stock 28300 28300 D The shares of common stock underlying this stock option award vest as to one-third of the shares subject to the option on each of the first, second and third anniversaries of December 15, 2021, subject to the Reporting Person's continued service to the board of directors of the Issuer through the applicable vesting date. /s/ Andrew Gengos, Attorney-in-Fact 2021-12-16