| Date | Time | Source | Headline | Symbol | Company |
| 02/22/2024 | 4:15PM | Edgar (US Regulatory) | Form 15-12G - Securities registration termination [Section 12(g)] | NASDAQ:IMGN | ImmunoGen Inc |
| 02/14/2024 | 5:01PM | Edgar (US Regulatory) | Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] | NASDAQ:IMGN | ImmunoGen Inc |
| 02/14/2024 | 4:26PM | Edgar (US Regulatory) | Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:48PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:48PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:47PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:46PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:45PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:44PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:43PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:42PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:41PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:41PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:40PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:39PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:38PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:37PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:36PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:35PM | Edgar (US Regulatory) | Form 4 - Statement of changes in beneficial ownership of securities | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:33PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:32PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:27PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:26PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:26PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:25PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:24PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:24PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:23PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:22PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |
| 02/12/2024 | 4:22PM | Edgar (US Regulatory) | Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments | NASDAQ:IMGN | ImmunoGen Inc |