ImmunoGen, Inc.

Entity: Company
Industry: Pharmaceutical Preparations (Office Of Life Sciences)
Business address: 830 Winter St, 02451 Waltham, MA
Phone: (781)895-0600
State of incorporation: MA
Fiscal year end: December 31
Category: Large accelerated filer
All SEC filings: View on sec.gov

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ImmunoGen, Inc. has filed 1,766 SEC EDGAR filings since 2/14/1994

Latest Filings

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
15-12G	Open Document	Open Filing	15-12G	Feb 22, 2024		000-17999
SC 13G/A	Open Document	Open Filing	SC 13G/A	Feb 14, 2024		005-40774
SC 13G/A	Open Document	Open Filing	SC 13G/A	Feb 14, 2024		005-40774
SC 13G/A	Open Document	Open Filing	SCHEDULE 13G/A	Feb 13, 2024		005-40774
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
4	Open Document	Open Filing	OWNERSHIP DOCUMENT	Feb 12, 2024	Feb 12, 2024
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-271524
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-271523
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-266452
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-266451
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-258631
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-258629
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-253753
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-251548
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-235633
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-235632
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-225860
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-225281
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-215196
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-185086
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-170788
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-155540
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-147738
S-8 POS	Open Document	Open Filing	S-8 POS	Feb 12, 2024		333-138713
25-NSE	Open Document	Open Filing		Feb 12, 2024		000-17999
8-K	Open Document \| Data	Open Filing	FORM 8-K	Feb 12, 2024	Feb 12, 2024	000-17999
8-K	Open Document \| Data	Open Filing	FORM 8-K	Feb 8, 2024	Feb 7, 2024	000-17999
SC 13G/A	Open Document	Open Filing	IMMUNOGEN, INC.	Feb 7, 2024		005-40774
4	Open Document	Open Filing		Feb 6, 2024	Feb 2, 2024
4	Open Document	Open Filing		Feb 6, 2024	Feb 2, 2024
4	Open Document	Open Filing		Feb 6, 2024	Feb 2, 2024
4	Open Document	Open Filing		Feb 6, 2024	Feb 2, 2024
4	Open Document	Open Filing		Feb 5, 2024	Feb 1, 2024
4	Open Document	Open Filing		Feb 5, 2024	Feb 1, 2024
4	Open Document	Open Filing		Feb 5, 2024	Feb 1, 2024
4	Open Document	Open Filing		Feb 5, 2024	Feb 1, 2024

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