Quick answer
1 insider bought PROTHENA CORP PUBLIC LTD CO (PRTA) stock on the open market between 2026-10-07 and 2026-10-14, totalling $5.48M; the largest buyer was SCULLY WILLIAM P (10% owner) with $5.48M, per SEC Form 4 filings.
Insider buyers
| Buyer | Role | Total bought |
|---|---|---|
| SCULLY WILLIAM P | 10% owner | $5.48M |
SEC sources
Updated 2026-10-15. Source: SEC EDGAR filings (linked above). Data only. Not investment advice, no buy/sell recommendation.
Related answers
- PRTA insider buying this week: $5.48M in open-market buys
- PRTA earnings dates: last reported 2026-08-06 (PROTHENA CORP PUBLIC LTD CO)