William P Scully, 10% owner at Prothena Corp Public, bought PRTA on Aug 7, 2026
Data as of Oct 16
- Traded
- Aug 7, 2026
- Disclosed
- Aug 10, 2026
- Filed
- 3 days after the trade
Form 4s are due within two business days.
Official filing (SEC Form 4) ↗
The price around the disclosure
PRTA since disclosure
−8.4%
Similar stocks (XLV) since disclosure
+4.9%
XLV — its sector index fund
Change in closing price from Aug 10, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.
Our take
None of our tested rules fired on this trade.
Other trades in the same filing
- ▲ BUYWilliam P Scully 10% ownerPRTA Prothena Corp Public Ltd Co$30.2Kdisclosed Aug 10 · filed 3 days after the trade