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 |
2023-01-18 Sale | 2023-01-20 9:30 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $55.53 | $555,306 | 23,200 (Direct) | View |
2022-12-21 Sale | 2022-12-23 9:30 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $58.97 | $589,690 | 33,200 (Direct) | View |
2022-11-23 Sale | 2022-11-25 9:31 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $61.09 | $610,854 | 43,200 (Direct) | View |
2022-10-19 Sale | 2022-10-21 9:30 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $56.44 | $564,385 | 53,200 (Direct) | View |
2022-09-21 Sale | 2022-09-23 9:30 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $30.75 | $307,496 | 63,200 (Direct) | View |
2022-08-24 Sale | 2022-08-26 9:31 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $30.17 | $301,672 | 73,200 (Direct) | View |
2022-07-20 Sale | 2022-07-22 9:37 pm | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 70,000 | $32.54 | $2,277,788 | 278,400 (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 |
2023-01-18 Exercise | 2023-01-20 9:30 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $6.73 | 23,200 (Direct) | View |
2023-01-18 Exercise | 2023-01-20 9:30 pm | N/A 2023-03-31 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $0 | 23,200 (Direct) | View |
2022-12-21 Exercise | 2022-12-23 9:30 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $6.73 | 33,200 (Direct) | View |
2022-12-21 Exercise | 2022-12-23 9:30 pm | N/A 2023-03-31 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $0 | 33,200 (Direct) | View |
2022-11-23 Exercise | 2022-11-25 9:31 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $6.73 | 43,200 (Direct) | View |
2022-11-23 Exercise | 2022-11-25 9:31 pm | N/A 2023-03-31 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $0 | 43,200 (Direct) | View |
2022-10-19 Exercise | 2022-10-21 9:30 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $6.73 | 53,200 (Direct) | View |
2022-10-19 Exercise | 2022-10-21 9:30 pm | N/A 2023-03-31 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $0 | 53,200 (Direct) | View |
2022-09-21 Exercise | 2022-09-23 9:30 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $6.73 | 63,200 (Direct) | View |
2022-09-21 Exercise | 2022-09-23 9:30 pm | N/A 2023-03-31 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $0 | 63,200 (Direct) | View |
2022-08-24 Exercise | 2022-08-26 9:31 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $6.73 | 73,200 (Direct) | View |
2022-08-24 Exercise | 2022-08-26 9:31 pm | N/A 2023-03-31 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 10,000 | $0 | 73,200 (Direct) | View |
2022-06-01 Option Award | 2022-08-19 5:38 pm | N/A 2032-06-01 | Rain Therapeutics Inc. | RAIN | Nguyen Tran Director | 20,000 | $0 | 20,000 (Direct) | View |
2022-07-20 Exercise | 2022-07-22 9:37 pm | N/A N/A | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 70,000 | $6.73 | 278,400 (Direct) | View |
2022-07-20 Exercise | 2022-07-22 9:37 pm | N/A 2023-03-31 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 70,000 | $0 | 278,400 (Direct) | View |
2022-02-23 Option Award | 2022-02-25 9:31 pm | N/A 2032-02-23 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran Chief Strategy Officer and CFO | 85,000 | $0 | 85,000 (Direct) | View |
2021-04-22 Ownership | 2021-04-22 7:21 pm | N/A 2029-03-13 | Rain Therapeutics Inc. | RAIN | Nguyen Tran Director | 0 | $0 | 56,486 (Direct) | View |
2021-02-25 Option Award | 2021-02-26 5:14 pm | N/A 2031-02-25 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran See Remarks | 84,000 | $0 | 84,000 (Direct) | View |
2021-02-12 Option Award | 2021-02-17 6:46 pm | N/A 2025-03-11 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran See Remarks | 189,837 | $0 | 189,837 (Direct) | View |
2021-02-12 Disposition | 2021-02-17 6:46 pm | 2019-03-11 2025-03-11 | PROTHENA CORP PUBLIC LTD CO | PRTA | Nguyen Tran See Remarks | 275,000 | $0 | 189,837 (Direct) | View |
2020-02-25 Option Award | 2020-02-27 5:14 pm | N/A 2030-02-25 | Prothena Corp plc | PRTA | Nguyen Tran See Remarks | 105,000 | $0 | 108,200 (Direct) | View |
2019-06-11 Option Award | 2019-06-12 5:50 pm | N/A 2029-06-11 | Sierra Oncology Inc. | SRRA | Nguyen Tran Director | 30,000 | $0 | 30,000 (Direct) | View |
2019-02-27 Option Award | 2019-03-01 4:15 pm | N/A 2029-02-27 | Prothena Corp plc | PRTA | Nguyen Tran See Remarks | 95,000 | $0 | 98,200 (Direct) | View |
2018-06-21 Option Award | 2018-06-25 4:32 pm | N/A 2028-06-21 | Prothena Corp plc | PRTA | Nguyen Tran COO and CFO | 250,000 | $0 | 253,200 (Direct) | View |
2018-06-12 Option Award | 2018-06-14 5:08 pm | N/A 2028-06-12 | Sierra Oncology Inc. | SRRA | Nguyen Tran Director | 25,000 | $0 | 25,000 (Direct) | View |
2018-02-21 Option Award | 2018-02-23 4:05 pm | N/A 2028-02-21 | Prothena Corp plc | PRTA | Nguyen Tran Chief Financial Officer | 80,000 | $0 | 83,200 (Direct) | View |