0000899243-22-027272.txt : 20220801 0000899243-22-027272.hdr.sgml : 20220801 20220801211449 ACCESSION NUMBER: 0000899243-22-027272 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20220801 FILED AS OF DATE: 20220801 DATE AS OF CHANGE: 20220801 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: 001-38541 FILM NUMBER: 221126611 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: Magenta Therapeutics, Inc. CENTRAL INDEX KEY: 0001690585 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 100 TECHNOLOGY SQUARE STREET 2: 5TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02139 BUSINESS PHONE: 857-201-2700 MAIL ADDRESS: STREET 1: 100 TECHNOLOGY SQUARE STREET 2: 5TH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02139 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2022-08-01 0 0001690585 Magenta Therapeutics, Inc. MGTA 0001816944 Humphrey Jeffrey C/O MAGENTA THERAPEUTICS, INC. 100 TECHNOLOGY SQUARE CAMBRIDGE MA 02139 0 1 0 0 Chief Medical Officer Stock Option (Right to Buy) 1.57 2022-08-01 4 A 0 75000 0.00 A 2032-07-31 Common Stock 75000 75000 D This option shall vest and become exercisable in 16 equal quarterly installments beginning on the first quarter following the vesting commencement date. The vesting commencement date is August 1, 2022. /s/ Cindy Driscoll, Attorney-in-Fact for Jeffrey Humphrey 2022-08-01