MILLENNIUM MANAGEMENT LLC 13D and 13G filings for Mersana Therapeutics, 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 |
| 2023-01-19 4:06 pm Sale | 2022-12-31 | 13G | Mersana Therapeutics, Inc. MRSN | MILLENNIUM MANAGEMENT LLC | 3,663,527 3.700% | -67,184 (-1.80%) | Filing |
| 2022-02-17 4:12 pm Purchase | 2022-02-15 | 13G | Mersana Therapeutics, Inc. MRSN | MILLENNIUM MANAGEMENT LLC | 3,730,711 5.200% | 3,730,711 (New Position) | Filing |