ImmunoGen, Inc. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Waltham, MA
SEC filing record 1 source field available
Fiscal year end
31 December
ImmunoGen, Inc. has filed 1,766 SEC EDGAR filings since 14 Feb 1994

SEC filing history

Showing 251-275 of 1,000 matching filings.

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25
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11
4

4 filing

Filing date
05 Jul 2022
Reporting date
30 Jun 2022
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4

4 filing

Filing date
05 Jul 2022
Reporting date
30 Jun 2022
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4

4 filing

Filing date
05 Jul 2022
Reporting date
30 Jun 2022
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4

4 filing

Filing date
17 Jun 2022
Reporting date
15 Jun 2022
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4

4 filing

Filing date
17 Jun 2022
Reporting date
15 Jun 2022
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4

4 filing

Filing date
17 Jun 2022
Reporting date
15 Jun 2022
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4

4 filing

Filing date
17 Jun 2022
Reporting date
15 Jun 2022
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4

4 filing

Filing date
17 Jun 2022
Reporting date
15 Jun 2022
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4

4 filing

Filing date
17 Jun 2022
Reporting date
15 Jun 2022
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4

4 filing

Filing date
17 Jun 2022
Reporting date
15 Jun 2022
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4

4 filing

Filing date
17 Jun 2022
Reporting date
15 Jun 2022
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SC 13G File 005-40774

SC 13G filing

Filing date
19 May 2022
Reporting date
Not listed
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DEFA14A File 000-17999

DEFA14A

Filing date
26 Apr 2022
Reporting date
Not listed
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DEF 14A File 000-17999

DEF 14A

Filing date
26 Apr 2022
Reporting date
15 Jun 2022
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4/A

FORM 4/A -

Filing date
20 Apr 2022
Reporting date
31 Mar 2022
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PRE 14A File 000-17999

PRE 14A

Filing date
13 Apr 2022
Reporting date
15 Jun 2022
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SC 13G File 005-40774

IMMUNOGEN, INC.

Filing date
04 Apr 2022
Reporting date
Not listed
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4

FORM 4 -

Filing date
04 Apr 2022
Reporting date
31 Mar 2022
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4

FORM 4 -

Filing date
04 Apr 2022
Reporting date
31 Mar 2022
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4

FORM 4 -

Filing date
04 Apr 2022
Reporting date
31 Mar 2022
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SC 13G/A File 005-40774

SC 13G/A filing

Filing date
11 Mar 2022
Reporting date
Not listed
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