0001964306-23-000235.txt : 20230919 0001964306-23-000235.hdr.sgml : 20230919 20230919161542 ACCESSION NUMBER: 0001964306-23-000235 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230919 DATE AS OF CHANGE: 20230919 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: 231263942 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: Berkenblit Anna CENTRAL INDEX KEY: 0001691868 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 830 WINTER STREET CITY: WALTHAM STATE: MA ZIP: 02451 144 1 primary_doc.xml 144 0001691868 XXXXXXXX LIVE 0000855654 ImmunoGen, Inc. 000-17999 830 WINTER ST WALTHAM MA 02451 (781)895-0600 Berkenblit Anna Officer Common Stock Merrill Lynch

225 Liberty St Floor 37 New York NY 10281

547888 8766208.00 248943426 09/19/2023 NASDAQ Common Stock 09/19/2023 Exercise of employee stock options ImmunoGen, Inc. N 547888 09/19/2023 Broker assisted cashless exercise N Anna Berkenblit

830 WINTER ST WALTHAM MA 02451

Common Stock 08/14/2023 50000 746147.29 Anna Berkenblit

830 WINTER ST WALTHAM MA 02451

Common Stock 08/15/2023 50000 777116.61 Anna Berkenblit

830 WINTER ST WALTHAM MA 02451

Common Stock 08/16/2023 50000 791552.13 Anna Berkenblit

830 WINTER ST WALTHAM MA 02451

Common Stock 08/17/2023 50000 790348.23 Anna Berkenblit

830 WINTER ST, WALTHAM MA 02451

Common Stock 08/18/2023 50000 787641.95 Anna Berkenblit

830 WINTER ST WALTHAM MA 02451

Common Stock 08/21/2023 50000 799444.49 Anna Berkenblit

830 WINTER ST WALTHAM MA 02451

Common Stock 08/22/2023 50000 818475.38 Anna Berkenblit

830 WINTER ST, WALTHAM MA 02451

Common Stock 08/23/2023 50000 825025.24 Anna Berkenblit

830 WINTER ST. WALTHAM MA 02451

Common Stock 08/24/2023 50000 800996.11 Anna Berkenblit

830 WINTER ST. WALTHAM MA 02451

Common Stock 08/25/2023 50000 798359.08 Anna Berkenblit

830 WINTER ST. WALTHAM MA 02451

Common Stock 08/28/2023 50000 766651.73 Anna Berkenblit

830 WINTER ST. WALTHAM MA 02451

Common Stock 08/29/2023 50000 797612.63 Anna Berkenblit

830 WINTER ST. WALTHAM MA 02451

Common Stock 08/30/2023 50000 795023.83 Anna Berkenblit

830 WINTER ST. WALTHAM MA 02451

Common Stock 08/31/2023 50000 788010.71 Anna Berkenblit

830 WINTER ST. WALTHAM MA 02451

Common Stock 09/01/2023 50000 800444.43 Anna Berkenblit

830 WINTER ST. WALTHAM MA 02451

Common Stock 09/06/2023 50000 783738.85 Anna Berkenblit

830 WINTER ST. WALTHAM MA 02451

Common Stock 09/11/2023 50000 788582.80 Anna Berkenblit

830 WINTER ST. WALTHAM MA 02451

Common Stock 09/13/2023 100000 1609336.80 Anna Berkenblit

830 WINTER ST WALTHAM MA 02451

Common Stock 09/18/2023 50000 782581.95 09/19/2023 Anna Berkenblit