0001964306-23-000250.txt : 20231016 0001964306-23-000250.hdr.sgml : 20231016 20231016170842 ACCESSION NUMBER: 0001964306-23-000250 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20231016 DATE AS OF CHANGE: 20231016 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: 231327902 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

192004 2764597.40 248943426 09/15/2023 NASDAQ Common Stock 10/16/2023 Exercise of employee stock options ImmunoGen, Inc. N 192004 10/16/2023 Broker assisted cashless exercise N Theresa Wingrove

830 WINTER ST WALTHAM MA 02451

Common Stock 09/15/2023 192013 2965492.06 10/16/2023 06/13/2023 Theresa Wingrove