0001964306-23-000227.txt : 20230915 0001964306-23-000227.hdr.sgml : 20230915 20230915161613 ACCESSION NUMBER: 0001964306-23-000227 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230915 DATE AS OF CHANGE: 20230915 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: 231258941 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: Wingrove Theresa CENTRAL INDEX KEY: 0001510720 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: IMMUNOGEN, INC. STREET 2: 830 WINTER STREET CITY: WALTHAM STATE: MA ZIP: 02451 144 1 primary_doc.xml 144 0001510720 XXXXXXXX LIVE 0000855654 ImmunoGen, Inc. 000-17999 830 WINTER ST WALTHAM MA 02451 (781)895-0600 Wingrove Theresa Officer Common Stock Merrill Lynch

225 Liberty St Floor 37 New York NY 10281

192013 2965492.06 248943426 09/15/2023 NASDAQ Common Stock 09/15/2023 Exercise of employee stock options ImmunoGen, Inc. N 108668 09/15/2023 Broker assisted cashless exercise Common Stock 02/21/2018 Vesting of restricted stock unit award ImmunoGen, Inc. N 22638 02/21/2018 Granted as part of issuer equity compensation plan Common Stock 02/21/2019 Vesting of restricted stock unit award ImmunoGen, Inc. N 22985 02/21/2019 Granted as part of issuer equity compensation plan Common Stock 02/21/2020 Vesting of restricted stock unit award ImmunoGen, Inc. N 17869 02/21/2020 Granted as part of issuer equity compensation plan Common Stock 12/31/2018 Employee stock purchase plan ImmunoGen, Inc. N 2244 12/31/2018 Cash Common Stock 12/31/2019 Employee stock purchase plan ImmunoGen, Inc. N 4762 12/31/2019 Cash Common Stock 06/30/2020 Employee stock purchase plan ImmunoGen, Inc. N 2593 06/30/2020 Cash Common Stock 12/31/2020 Employee stock purchase plan ImmunoGen, Inc. N 2659 12/31/2020 Cash Common Stock 06/30/2021 Employee stock purchase plan ImmunoGen, Inc. N 1768 06/30/2021 Cash Common Stock 12/31/2021 Employee stock purchase plan ImmunoGen, Inc. N 2051 12/31/2021 Cash Common Stock 06/30/2022 Employee stock purchase plan ImmunoGen, Inc. N 2645 06/30/2022 Cash Common Stock 12/31/2022 Employee stock purchase plan ImmunoGen, Inc. N 1131 12/31/2022 Cash Y 09/15/2023 06/13/2023 Theresa Wingrove