ImmunoGen, Inc. SEC Filings http://investor.immunogen.com/ ImmunoGen, Inc. SEC Filings en 4: Statement of changes in beneficial ownership of securities http://investor.immunogen.com/sec-filings/sec-filing/4/0001179110-19-008043 IMMUNOGEN INC Mon, 24 Jun 2019 10:28:58 -0400 ImmunoGen, Inc. SEC Filings 18826 4: Statement of changes in beneficial ownership of securities http://investor.immunogen.com/sec-filings/sec-filing/4/0001179110-19-008041 IMMUNOGEN INC Mon, 24 Jun 2019 10:28:58 -0400 ImmunoGen, Inc. SEC Filings 18831 4: Statement of changes in beneficial ownership of securities http://investor.immunogen.com/sec-filings/sec-filing/4/0001179110-19-008044 IMMUNOGEN INC Mon, 24 Jun 2019 10:28:57 -0400 ImmunoGen, Inc. SEC Filings 18816 4: Statement of changes in beneficial ownership of securities http://investor.immunogen.com/sec-filings/sec-filing/4/0001179110-19-008042 IMMUNOGEN INC Mon, 24 Jun 2019 10:28:57 -0400 ImmunoGen, Inc. SEC Filings 18821 4: Statement of changes in beneficial ownership of securities http://investor.immunogen.com/sec-filings/sec-filing/4/0001179110-19-008039 IMMUNOGEN INC Mon, 24 Jun 2019 10:26:58 -0400 ImmunoGen, Inc. SEC Filings 18811 4: Statement of changes in beneficial ownership of securities http://investor.immunogen.com/sec-filings/sec-filing/4/0001179110-19-008040 IMMUNOGEN INC Mon, 24 Jun 2019 10:26:58 -0400 ImmunoGen, Inc. SEC Filings 18806 4: Statement of changes in beneficial ownership of securities http://investor.immunogen.com/sec-filings/sec-filing/4/0001179110-19-004809 IMMUNOGEN INC Mon, 08 Apr 2019 13:41:35 -0400 ImmunoGen, Inc. SEC Filings 18731 4: Statement of changes in beneficial ownership of securities http://investor.immunogen.com/sec-filings/sec-filing/4/0001179110-19-004395 IMMUNOGEN INC Mon, 01 Apr 2019 11:37:54 -0400 ImmunoGen, Inc. SEC Filings 18721 4: Statement of changes in beneficial ownership of securities http://investor.immunogen.com/sec-filings/sec-filing/4/0001179110-19-004396 IMMUNOGEN INC Mon, 01 Apr 2019 11:37:54 -0400 ImmunoGen, Inc. SEC Filings 18726 4: Statement of changes in beneficial ownership of securities http://investor.immunogen.com/sec-filings/sec-filing/4/0001179110-19-002470 IMMUNOGEN INC Mon, 25 Feb 2019 10:14:55 -0500 ImmunoGen, Inc. SEC Filings 18681