Sarissa Capital Management LP 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 |
| 2021-01-25 4:42 pm Purchase |
2021-01-15 | 13G | Mersana Therapeutics, Inc. MRSN |
Sarissa Capital Management LP | 3,770,000 5.500% |
20,000 (+0.53%) |
Filing |