<SEC-DOCUMENT>0001558370-16-009323-index.html : 20161104
<SEC-HEADER>0001558370-16-009323.hdr.sgml : 20161104
<ACCEPTANCE-DATETIME>20161104134149
ACCESSION NUMBER:		0001558370-16-009323
CONFORMED SUBMISSION TYPE:	8-K/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160923
ITEM INFORMATION:		Cost Associated with Exit or Disposal Activities
FILED AS OF DATE:		20161104
DATE AS OF CHANGE:		20161104

FILER:

	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:			0630

	FILING VALUES:
		FORM TYPE:		8-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-17999
		FILM NUMBER:		161974577

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K/A
<SEQUENCE>1
<FILENAME>imgn_currentfolio8k-a.htm
<DESCRIPTION>8-K/A
<TEXT>
Document 1 - file: imgn_currentfolio8k-a.htm

</DOCUMENT>
</SEC-DOCUMENT>