Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2026-10-13 Purchase | 2026-10-15 4:21 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 110,000 | $8.3641 | $920,049 | 1,753,000 (Indirect Direct) | View |
| 2026-10-07 Purchase | 2026-10-09 09:43 am | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 215,000 | $8.47 | $1,821,054 | 1,643,000 (Indirect Direct) | View |
| 2026-10-02 Purchase | 2026-10-06 1:53 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 100,000 | $8.5724 | $857,240 | 1,428,000 (Indirect Direct) | View |
| 2026-09-29 Purchase | 2026-09-30 5:10 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 162,000 | $8.677 | $1,405,674 | 1,328,000 (Indirect Direct) | View |
| 2026-09-28 Purchase | 2026-09-29 5:37 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 103,500 | $8.5978 | $889,872 | 1,166,000 (Indirect Direct) | View |
| 2026-09-18 Purchase | 2026-09-21 4:23 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 100,000 | $8.4346 | $843,460 | 1,062,500 (Indirect Direct) | View |
| 2026-09-02 Purchase | 2026-09-03 6:23 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 27,000 | $9.4718 | $255,739 | 962,500 (Indirect Direct) | View |
| 2026-08-20 Purchase | 2026-08-21 2:32 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 50,000 | $8.7886 | $439,430 | 935,500 (Indirect Direct) | View |
| 2026-08-07 Purchase | 2026-08-10 3:24 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 37,500 | $8.6192 | $323,220 | 925,500 (Indirect Direct) | View |
| 2026-06-16 Purchase | 2026-06-18 11:38 am | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 20,000 | $7.8995 | $157,990 | 888,000 (Indirect Direct) | View |
| 2026-06-11 Purchase | 2026-06-12 5:59 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 125,000 | $8.1698 | $1,021,225 | 1,193,000 (Indirect Direct) | View |
| 2026-06-04 Purchase | 2026-06-05 1:46 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 50,000 | $9.3059 | $465,295 | 1,068,000 (Indirect Direct) | View |
| 2026-06-02 Purchase | 2026-06-03 12:41 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 50,000 | $9.426 | $471,300 | 1,018,000 (Indirect Direct) | View |
| 2026-05-22 Purchase | 2026-05-26 2:51 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 100,000 | $9.813 | $981,300 | 968,000 (Indirect Direct) | View |
| 2024-12-18 Purchase | 2025-05-02 10:29 am | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 207,436 | $13.26 | $2,749,916 | 926,943 (Indirect Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2026-08-17 Gift | 2026-08-18 4:03 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 963,553 | $0 | 885,500 (Direct) | View |
| 2026-08-10 Gift | 2026-08-11 4:08 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 251,553 | $0 | 1,177,053 (Direct) | View |
| 2026-06-15 Gift | 2026-06-16 4:58 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 325,000 | $0 | 868,000 (Direct) | View |
Ownership | 2026-05-14 6:22 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 0 | $0 | 868,000 (Direct) | View |
| 2024-12-18 Gift | 2025-05-02 10:29 am | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 1,177,700 | $0 | 926,943 (Direct) | View |
Ownership | 2025-05-01 9:19 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | SCULLY WILLIAM P 10% Owner | 0 | $0 | 1,037,207 (Direct) | View |