SCULLY WILLIAM P Insider Trading -- Recent SEC Form 4 Transactions
SCULLY WILLIAM P (CIK 1045463) reported 32 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-10-09). Recent activity: Buy PRTA (125,000 shares), Buy PRTA (90,000 shares), Buy PRTA (100,000 shares), Buy PRTA (162,000 shares), Buy PRTA (103,500 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-09 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 125,000 | $1.1M |
| 2026-10-09 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 90,000 | $770,904 |
| 2026-10-06 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 100,000 | $857,240 |
| 2026-09-30 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 162,000 | $1.4M |
| 2026-09-29 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 103,500 | $889,872 |
| 2026-09-21 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 100,000 | $843,460 |
| 2026-09-03 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 27,000 | $255,739 |
| 2026-08-21 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 50,000 | $439,430 |
| 2026-08-18 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Sell | 627,553 | $0 |
| 2026-08-18 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 336,000 | $0 |
| 2026-08-11 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 251,553 | $0 |
| 2026-08-10 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 34,000 | $293,053 |
| 2026-08-10 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 3,500 | $30,167 |
| 2026-06-18 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 20,000 | $158,000 |
| 2026-06-16 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Sell | 325,000 | $0 |
| 2026-06-12 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 125,000 | $1.0M |
| 2026-06-05 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 50,000 | $465,500 |
| 2026-06-03 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 50,000 | $471,500 |
| 2026-05-26 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 100,000 | $981,000 |
| 2025-05-02 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 1,200 | $16,044 |
| 2025-05-02 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 430,000 | $0 |
| 2025-05-02 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 73,436 | $1.0M |
| 2025-05-02 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Sell | 681,000 | $0 |
| 2025-05-02 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Buy | 2,000 | $31,820 |
| 2025-05-02 | PROTHENA CORP PUBLIC LTD CO (PRTA) | 10% Owner | Sell | 500 | $0 |
Source: SEC Form 4 filings · as of 2026-10-09