PRIMECAP MANAGEMENT CO 13D and 13G filings for Alkermes plc:
- 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 |
| 2020-09-10 12:01 pm Sale |
2009-02-28 | 13G | Alkermes plc ALKS |
PRIMECAP MANAGEMENT CO | 7,835,100 4.930% |
-6,265,076 (-44.43%) |
Filing |