0001964306-23-000139.txt : 20230802 0001964306-23-000139.hdr.sgml : 20230802 20230802183641 ACCESSION NUMBER: 0001964306-23-000139 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230802 DATE AS OF CHANGE: 20230802 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ImmunoGen, Inc. CENTRAL INDEX KEY: 0000855654 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 042726691 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 000-17999 FILM NUMBER: 231137468 BUSINESS ADDRESS: STREET 1: 830 WINTER ST CITY: WALTHAM STATE: MA ZIP: 02451 BUSINESS PHONE: (781)895-0600 MAIL ADDRESS: STREET 1: 830 WINTER ST CITY: WALTHAM STATE: MA ZIP: 02451 FORMER COMPANY: FORMER CONFORMED NAME: IMMUNOGEN INC DATE OF NAME CHANGE: 19920703 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Coen Stacy Ann CENTRAL INDEX KEY: 0001814150 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 11 RUSH POND RD CITY: LAKEVILLE STATE: MA ZIP: 02347 144 1 primary_doc.xml 144 0001814150 XXXXXXXX LIVE 0000855654 ImmunoGen, Inc. 000-17999 830 WINTER ST WALTHAM MA 02451 (781)895-0600 Coen Stacy Ann Officer Common Stock Merrill Lynch

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4255 77109.02 248943426 08/02/2023 NASDAQ Common Stock 08/02/2023 Exercise of employee stock options ImmunoGen, Inc. N 4255 08/03/2023 Broker assisted exercise of employee stock options Y 08/02/2023 Stacy Coen