PROTHENA CORP PUBLIC LTD CO (PRTA) has 12 SEC Form 4 insider filings on record in the last 90 days. That includes 3 insider purchases totalling $1.0M, and 2 sales totalling $206K. Most recent filing: Sept. 3, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
|---|---|---|---|---|---|---|
| Sept. 3, 2026 filed Sept. 2, 2026 | SCULLY WILLIAM P 10% Owner | +$255,739 | 27,000 | +3% | No | |
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| Aug. 21, 2026 filed Aug. 20, 2026 | SCULLY WILLIAM P 10% Owner | +$439,430 | 50,000 | +7% | No | |
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| Aug. 11, 2026 filed Aug. 10, 2026 | SCULLY WILLIAM P 10% Owner | $0 | 251,553 | +32% | No | |
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| Aug. 10, 2026 filed Aug. 7, 2026 | SCULLY WILLIAM P 10% Owner | +$323,220 | 37,500 | +82% | No | |
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| July 30, 2026 filed July 28, 2026 | Zago Wagner M. Chief Scientific Officer | $436,560 | 153,000 | — | No | |
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Showing the 5 most recent of 12 filings in the last 90 days.
Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
Real-time Telegram alerts the moment a Form 4 is filed. Filings shown here are delayed by 72 hours.
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