DIMENSIONAL FUND ADVISORS LP 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 |
| 2021-02-12 5:13 pm Sale | 2021-02-16 | 13G | Merrimack Pharmaceuticals, Inc. MACK | DIMENSIONAL FUND ADVISORS LP | 550,539 4.100% | -122,591 (-18.21%) | Filing |