Deerfield Mgmt, L.P. 13D and 13G filings for ImmunoGen, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2023-02-10 09:44 am Sale | 2022-12-31 | 13G | ImmunoGen, Inc. IMGN | Deerfield Mgmt, L.P. | 6,358,314 2.880% | -8,421,276 (-56.98%) | Filing |
| 2022-05-19 4:50 pm Purchase | 2022-05-09 | 13G | ImmunoGen, Inc. IMGN | Deerfield Mgmt, L.P. | 14,779,590 6.700% | 14,779,590 (New Position) | Filing |