William P Scully, 10% owner at Prothena Corp Public, bought PRTA on Oct 8, 2026
Data as of Oct 16
- Traded
- Oct 8, 2026
- Disclosed
- Oct 9, 2026
- Filed
- 1 day after the trade
Form 4s are due within two business days.
Official filing (SEC Form 4) ↗
The price around the disclosure
PRTA since disclosure
−5.5%
Similar stocks (XLV) since disclosure
+3.5%
XLV — its sector index fund
Change in closing price from Oct 9, 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$1.1Mdisclosed Oct 9 · filed 2 days after the trade