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 301-325 of 1,000 matching filings.

Per page
25
Current page
13
424B5 File 333-251502

424B5

Filing date
30 Nov 2021
Reporting date
Not listed
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4

FORM 4 -

Filing date
17 Nov 2021
Reporting date
15 Nov 2021
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3

FORM 3 -

Filing date
17 Nov 2021
Reporting date
15 Nov 2021
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4

FORM 4 -

Filing date
17 Nov 2021
Reporting date
15 Nov 2021
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3

FORM 3 -

Filing date
17 Nov 2021
Reporting date
15 Nov 2021
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4

FORM 4 -

Filing date
01 Oct 2021
Reporting date
30 Sep 2021
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4

FORM 4 -

Filing date
01 Oct 2021
Reporting date
30 Sep 2021
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4

FORM 4 -

Filing date
23 Sep 2021
Reporting date
22 Sep 2021
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3

FORM 3 -

Filing date
23 Sep 2021
Reporting date
22 Sep 2021
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4

FORM 4 -

Filing date
03 Sep 2021
Reporting date
03 Sep 2021
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424B5 File 333-251502

424B5

Filing date
12 Aug 2021
Reporting date
Not listed
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S-8 File 333-258631

FORM S-8

Filing date
09 Aug 2021
Reporting date
Not listed
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S-8 File 333-258629

FORM S-8

Filing date
09 Aug 2021
Reporting date
Not listed
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4

FORM 4 -

Filing date
02 Jul 2021
Reporting date
30 Jun 2021
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4

FORM 4 -

Filing date
02 Jul 2021
Reporting date
30 Jun 2021
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4

FORM 4 -

Filing date
02 Jul 2021
Reporting date
30 Jun 2021
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4

FORM 4 -

Filing date
02 Jul 2021
Reporting date
30 Jun 2021
SEC evidence
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