4
4 filing
- Filing date
- 14 Sep 2023
- Reporting date
- 12 Sep 2023
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
ImmunoGen, Inc. reports
- Company location
- Waltham, MA
- Fiscal year end
- 31 December
Company
Names, identifiers, and filing context for this profile.
1 identity field
SEC filing record 1 source field available
ImmunoGen, Inc. has filed 1,766 SEC EDGAR filings since 14 Feb 1994
SEC filing history
Showing 126-150 of 1,000 matching filings.
Per page
25
Current page
6
144
File 000-17999
144 filing
- Filing date
- 13 Sep 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 13 Sep 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 13 Sep 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 11 Sep 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 11 Sep 2023
- Reporting date
- 08 Sep 2023
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 06 Sep 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 01 Sep 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 31 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 30 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 29 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 28 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 25 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 24 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 23 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 22 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 21 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 18 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 17 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 16 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 15 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 14 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 11 Aug 2023
- Reporting date
- 09 Aug 2023
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
144
File 000-17999
144 filing
- Filing date
- 09 Aug 2023
- Reporting date
- Not listed
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 04 Aug 2023
- Reporting date
- 02 Aug 2023
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing