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 37,500 shares of common stock on August 7, 2026 for $8.62 per share.
Summary
- Open-market purchase: acquired 34,000 Ordinary Shares, par value $0.01 per share at $8.62 ($293,053) on August 7, 2026; holds 790,000 after (Direct).
- Open-market purchase: acquired 3,500 Ordinary Shares, par value $0.01 per share at $8.62 ($30,167) on August 7, 2026; holds 83,500 after (Indirect).
Sentiment
Score: 8
Explanation: StockSavvy.ai views this as a bullish signal: an insider made an open-market purchase of $323,220, committing personal capital to the stock.
Insider Transactions
William P Scully — 10% owner
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-07 | Open-market purchase | Ordinary Shares, par value $0.01 per share | 34,000 | $9 | $293.1K | 790,000 |
| 2026-08-07 | Open-market purchase | Ordinary Shares, par value $0.01 per share | 3,500 | $9 | $30.2K | 83,500 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-07 | Open-market purchase (34,000 shares) |
| 2026-08-07 | Open-market purchase (3,500 shares) |
Keywords
insider transaction, Form 4, PRTA, PROTHENA CORP PUBLIC LTD CO, bullish, William P Scully
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