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 426-450 of 1,000 matching filings.

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25
Current page
18
SC 13G/A File 005-40774

NONE

Filing date
14 Feb 2020
Reporting date
Not listed
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SC 13G/A File 005-40774

SC 13G/A filing

Filing date
13 Feb 2020
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Not listed
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SC 13G File 005-40774

SC 13G filing

Filing date
12 Feb 2020
Reporting date
Not listed
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SC 13G/A File 005-40774

SCHEDULE 13G/A

Filing date
12 Feb 2020
Reporting date
Not listed
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4

FORM 4 -

Filing date
11 Feb 2020
Reporting date
07 Feb 2020
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4

FORM 4 -

Filing date
11 Feb 2020
Reporting date
07 Feb 2020
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4

FORM 4 -

Filing date
11 Feb 2020
Reporting date
07 Feb 2020
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4

FORM 4 -

Filing date
11 Feb 2020
Reporting date
07 Feb 2020
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4

FORM 4 -

Filing date
11 Feb 2020
Reporting date
07 Feb 2020
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SC 13G File 005-40774

SEC SCHEDULE 13G

Filing date
10 Feb 2020
Reporting date
Not listed
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SC 13G/A File 005-40774

SC 13G/A filing

Filing date
05 Feb 2020
Reporting date
Not listed
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424B5 File 333-223507

424B5

Filing date
23 Jan 2020
Reporting date
Not listed
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424B5 File 333-223507

424B5

Filing date
22 Jan 2020
Reporting date
Not listed
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4

FORM 4 -

Filing date
03 Jan 2020
Reporting date
31 Dec 2019
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4

FORM 4 -

Filing date
03 Jan 2020
Reporting date
31 Dec 2019
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4

FORM 4 -

Filing date
02 Jan 2020
Reporting date
31 Dec 2019
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4

FORM 4 -

Filing date
02 Jan 2020
Reporting date
31 Dec 2019
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S-8 File 333-235633

S-8

Filing date
20 Dec 2019
Reporting date
Not listed
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S-8 File 333-235632

S-8

Filing date
20 Dec 2019
Reporting date
Not listed
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S-8 POS File 333-219718

S-8 POS

Filing date
20 Dec 2019
Reporting date
Not listed
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