0000899243-20-030392.txt : 20201104 0000899243-20-030392.hdr.sgml : 20201104 20201104163919 ACCESSION NUMBER: 0000899243-20-030392 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20201102 FILED AS OF DATE: 20201104 DATE AS OF CHANGE: 20201104 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Mahoney Stephen F. CENTRAL INDEX KEY: 0001741389 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38541 FILM NUMBER: 201287248 MAIL ADDRESS: STREET 1: C/O KINIKSA PHARMACEUTICALS, LTD. STREET 2: CLARENDON HOUSE, 2 CHURCH STREET CITY: HAMILTON STATE: D0 ZIP: HM11 FORMER NAME: FORMER CONFORMED NAME: Mahoney Stephen DATE OF NAME CHANGE: 20180521 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 2020-11-02 0 0001690585 Magenta Therapeutics, Inc. MGTA 0001741389 Mahoney Stephen F. C/O MAGENTA THERAPEUTICS, INC. 100 TECHNOLOGY SQUARE CAMBRIDGE MA 02139 0 1 0 0 See Remarks Stock Option (Right to Buy) 6.28 2020-11-02 4 A 0 435000 0.00 A 2030-11-01 Common Stock 435000 435000 D This option shall vest and become exerciseable over four years, with 25% of this option vesting on November 2, 2021, and the remainder vesting in 36 equal monthly installments thereafter. Chief Financial and Operating Officer /s/ Zoran Zdraveski, Attorney-in-Fact for Stephen F. Mahoney 2020-11-04