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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000899243-21-038822
Filing Date
2021-10-04
Accepted
2021-10-04 16:33:13
Documents
2
Period of Report
2021-10-01

Document Format Files

Seq Description Document Type Size
1 FORM 3 SUBMISSION doc3.html 3  
1 FORM 3 SUBMISSION doc3.xml 3 1637
2 EX-24.1 DOCUMENT attachment1.htm EX-24.1 3686
  Complete submission text file 0000899243-21-038822.txt   6742
Mailing Address 100 TECHNOLOGY SQUARE 5TH FLOOR CAMBRIDGE MA 02139
Business Address 100 TECHNOLOGY SQUARE 5TH FLOOR CAMBRIDGE MA 02139 857-201-2700
Magenta Therapeutics, Inc. (Issuer) CIK: 0001690585 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 2834 Pharmaceutical Preparations

Mailing Address C/O CONSTELLATION PHARMACEUTICALS, INC. 215 FIRST STREET, SUITE 200 CAMBRIDGE MA 02142
Business Address
Humphrey Jeffrey (Reporting) CIK: 0001816944 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-38541 | Film No.: 211303303