Latest filings (excl ownership)
15-12G
Securities registration termination
22 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
S-8 POS
Registration of securities for employees (post-effective amendment)
12 Feb 24
25-NSE
Exchange delisting
12 Feb 24
8-K
Termination of a Material Definitive Agreement
12 Feb 24
8-K
Other Events
8 Feb 24
8-K
Submission of Matters to a Vote of Security Holders
31 Jan 24
DEFA14A
Additional proxy soliciting materials
29 Jan 24
8-K
Other Events
29 Jan 24
DEFA14A
Additional proxy soliciting materials
24 Jan 24
8-K
Other Events
24 Jan 24
DEFA14A
Additional proxy soliciting materials
8 Jan 24
8-K
Other Events
8 Jan 24
DEFM14A
Proxy related to merger
2 Jan 24
PREM14A
Preliminary proxy related to merger
21 Dec 23
DEFA14A
Additional proxy soliciting materials
21 Dec 23
DEFA14A
Additional proxy soliciting materials
30 Nov 23
DEFA14A
Additional proxy soliciting materials
30 Nov 23
8-K
AbbVie to Acquire ImmunoGen, including its Flagship Cancer Therapy ELAHEREĀ® (mirvetuximab soravtansine-gynx), Expanding Solid Tumor Portfolio
30 Nov 23
10-Q
2023 Q3
Quarterly report
2 Nov 23
8-K
ImmunoGen Reports Recent Progress and Third Quarter 2023 Financial Results
2 Nov 23
8-K
ImmunoGen Appoints Lauren White as Senior Vice President and Chief Financial Officer
18 Sep 23
10-Q
2023 Q2
Quarterly report
31 Jul 23
8-K
ImmunoGen Reports Recent Progress and Second Quarter 2023 Financial Results
31 Jul 23
Latest ownership filings
SC 13G/A
RA CAPITAL MANAGEMENT, L.P.
14 Feb 24
SC 13G/A
Redmile Group, LLC
14 Feb 24
SC 13G/A
VANGUARD GROUP INC
13 Feb 24
4
DEAN J MITCHELL
12 Feb 24
4
Kristine Peterson
12 Feb 24
4
Helen M. Thackray
12 Feb 24
4
Mark J Enyedy
12 Feb 24
4
Richard John Wallace
12 Feb 24
4
Stacy Ann Coen
12 Feb 24
4
Renee Lentini
12 Feb 24
4
Mark Alan Goldberg
12 Feb 24
4
Stuart A Arbuckle
12 Feb 24
4
Theresa Wingrove
12 Feb 24
4
STEPHEN C MCCLUSKI
12 Feb 24
4
Tracey L McCain
12 Feb 24
4
Isabel Kalofonos
12 Feb 24
4
Lauren White
12 Feb 24
4
Daniel Char
12 Feb 24
4
MICHAEL VASCONCELLES
12 Feb 24
SC 13G/A
ADAGE CAPITAL PARTNERS GP, L.L.C.
7 Feb 24
4
Stacy Ann Coen
6 Feb 24
4
Theresa Wingrove
6 Feb 24
4
Mark J Enyedy
6 Feb 24
4
Renee Lentini
6 Feb 24
4
Isabel Kalofonos
5 Feb 24
4
MICHAEL VASCONCELLES
5 Feb 24
4
Daniel Char
5 Feb 24
4
Lauren White
5 Feb 24
4
Stacy Ann Coen
5 Feb 24
4
Renee Lentini
5 Feb 24
4
Mark J Enyedy
5 Feb 24
4
Theresa Wingrove
5 Feb 24
144
Notice of proposed sale of securities
5 Feb 24
144
Notice of proposed sale of securities
5 Feb 24
144
Notice of proposed sale of securities
5 Feb 24
144
Notice of proposed sale of securities
5 Feb 24
SC 13G/A
BlackRock Inc.
25 Jan 24
SC 13G/A
STATE STREET CORP
22 Jan 24
4
Theresa Wingrove
18 Jan 24
144
Notice of proposed sale of securities
16 Jan 24