WP
Insider buying
William P Scully bought $1.2M of PRTA stock
William P Scully, 10% owner of Prothena Corp Public Ltd Co (PRTA), bought 150,000 shares of PRTA stock worth $1.2M, per an SEC Form 4 filed Oct 26, 2026.
It was an open-market purchase.
The trade happened on Oct 22, 2026, 4 days before it was made public.
PRTA has moved +2.7% since the trade date, from $8.25 to $8.47 (Oct 30, 2026 close).
- Traded
- Oct 22, 2026
- Disclosed
- Oct 26, 2026
- Filing delay
- 4 days
- Price since
- +2.7%
- 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.