Renaissance Technologies LLC 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 |
| 2021-02-10 6:01 pm Sale | 2020-12-31 | 13G | ImmunoGen, Inc. IMGN | Renaissance Technologies LLC | 4,235,966 2.180% | -6,471,173 (-60.44%) | Filing |