Nantahala Capital Management LLC 13D and 13G filings for Merrimack Pharmaceuticals, 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 |
| 2022-02-14 08:19 am Sale | 2021-12-31 | 13G | Merrimack Pharmaceuticals, Inc. MACK | Nantahala Capital Management LLC | 569,971 4.300% | -181,872 (-24.19%) | Filing |
| 2021-02-12 06:46 am Purchase | 2020-12-31 | 13G | Merrimack Pharmaceuticals, Inc. MACK | Nantahala Capital Management LLC | 751,843 5.600% | 4,208 (+0.56%) | Filing |