Form 4: Prothena Corp Public Ltd Insider Buys Shares
Insider Transaction (Form 4)
William P Scully, a 10% owner of Prothena Corp Public Ltd Co, purchased 103,500 shares of common stock on September 28, 2026 for $8.60 per share.
Summary
- Open-market purchase: acquired 103,500 Ordinary Shares, par value $0.01 per share at $8.60 ($889,872) on September 28, 2026; holds 187,000 after (Indirect).
Sentiment
Score: 8
Explanation: StockSavvy.ai views this as a bullish signal: an insider made an open-market purchase of $889,872, committing personal capital to the stock.
Insider Transactions
William P Scully — 10% owner
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-09-28 | Open-market purchase | Ordinary Shares, par value $0.01 per share | 103,500 | $9 | $889.9K | 187,000 |
Key Dates
| Date | Description |
|---|---|
| 2026-09-28 | Open-market purchase (103,500 shares) |
Keywords
insider transaction, Form 4, PRTA, PROTHENA CORP PUBLIC LTD CO, bullish, William P Scully
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