AlphaYouWP
Insider buying
William P Scully bought $323K of Prothena Corp Public Ltd Co (PRTA) stock
William P Scully, 10% owner of Prothena Corp Public Ltd Co (PRTA), bought 37,500 shares of PRTA stock worth $323K, per an SEC Form 4 filed Aug 10, 2026.
It was an open-market purchase.
The trade happened on Aug 7, 2026, 3 days before it was made public.
PRTA has moved -2.9% since the trade date, from $8.76 to $8.51 (Sep 21, 2026 close).
- Traded
- Aug 7, 2026
- Disclosed
- Aug 10, 2026
- Filing delay
- 3 days
- Price since
- -2.9%
- Role
- 10% owner
- Source
- SEC Form 4
More PRTA insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.