ADAR1 Capital Management, LLC 13D and 13G filings for Prothena Corporation 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 |
| 2025-11-14 7:47 pm Sale | 2025-09-30 | 13G | Prothena Corporation plc PRTA | ADAR1 Capital Management, LLC | 1,469,098 2.700% | -1,905,911 (-56.47%) | Filing |
| 2025-08-14 8:17 pm Purchase | 2025-06-30 | 13G | Prothena Corporation plc PRTA | ADAR1 Capital Management, LLC | 3,375,009 6.300% | 3,375,009 (New Position) | Filing |