| 4 | Statement of changes in beneficial owner... | Surrozen, Inc./de | Donnelley Financial Solutions /fa/ | 05/14/2026 | |
| 4 | Statement of changes in beneficial owner... | Berkenblit Anna | Donnelley Financial Solutions /fa/ | 05/14/2026 | |
| 4 | Statement of changes in beneficial owner... | Surrozen, Inc./de | Equity Administration Solutions Inc. /fa | 06/06/2024 | |
| 4 | Statement of changes in beneficial owner... | Berkenblit Anna | Equity Administration Solutions Inc. /fa | 06/06/2024 | |
| 144 | Filing for proposed sale of securities u... | Berkenblit Anna | Merrill Lynch, Pierce, Fenner & Smith Inc/pes/fa /fa | 11/02/2023 | |
| 144 | Filing for proposed sale of securities u... | Immunogen, Inc. | Merrill Lynch, Pierce, Fenner & Smith Inc/pes/fa /fa | 11/02/2023 | |
| 144 | Filing for proposed sale of securities u... | Berkenblit Anna | Merrill Lynch, Pierce, Fenner & Smith Inc/pes/fa /fa | 09/19/2023 | |
| 144 | Filing for proposed sale of securities u... | Immunogen, Inc. | Merrill Lynch, Pierce, Fenner & Smith Inc/pes/fa /fa | 09/19/2023 | |
| 144 | Filing for proposed sale of securities u... | Berkenblit Anna | Merrill Lynch, Pierce, Fenner & Smith Inc/pes/fa /fa | 09/18/2023 | |
| 144 | Filing for proposed sale of securities u... | Immunogen, Inc. | Merrill Lynch, Pierce, Fenner & Smith Inc/pes/fa /fa | 09/18/2023 | |
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SEC Filing Data
