0000899243-21-036601.txt : 20210920 0000899243-21-036601.hdr.sgml : 20210920 20210920170230 ACCESSION NUMBER: 0000899243-21-036601 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210916 FILED AS OF DATE: 20210920 DATE AS OF CHANGE: 20210920 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: 211263878 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 2021-09-16 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 Common Stock 2021-09-16 4 S 0 5736 6.73 D 14264 D This transaction represents shares sold solely to pay taxes due upon the vesting of restricted stock units, as disclosed by the reporting person on the Form 4 filed on September 16, 2021. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.60 to $6.87, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Chief Financial and Operating Officer /s/ Cindy Driscoll, Attorney-in-Fact for Stephen F. Mahoney 2021-09-20