Karin L. Walker serves as Executive at Prothena Corp plc, where they oversee executive responsibilities. Since joining the company, Karin L. Walker has executed 109 insider transactions totaling $10.1M, demonstrating a bearish approach to their equity position. Their most recent transaction on Oct 20, 2021 involved selling 2,185 shares valued at $135.3K.
Karin L. Walker currently holds 25,000 shares of Prothena Corp plc (PRTA), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Karin L. Walker has been a net seller of PRTA stock. They have purchased $0 and sold $10.1M worth of shares.
Karin L. Walker's most recent insider trade was on Oct 20, 2021, when they sold 2,185 shares at $61.94 per share.
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| $60.91 |
| Discretionary |
| Oct 20, 2021 | PRTA | $89.4K | Option Exercise | 3,000 | $29.81 | Discretionary |
| Jun 15, 2021 | CYCC | $0 | Award | 1,187 | $N/A | Discretionary |
| Jun 15, 2021 | CYCC | $0 | Award | 2,374 | $N/A | Discretionary |
| Sep 28, 2017 | PRTA | $105.0K | Sale | 1,500 | $70.00 | Discretionary |
| Sep 28, 2017 | PRTA | $41.7K | Option Exercise | 1,500 | $27.81 | Discretionary |
| Jul 17, 2017 | PRTA | $234.8K | Sale | 3,600 | $65.21 | Discretionary |
| Jul 17, 2017 | PRTA | $89.7K | Sale | 1,400 | $64.06 | Discretionary |
| Jul 17, 2017 | PRTA | $48.8K | Option Exercise | 5,000 | $9.75 | Discretionary |
| Apr 17, 2017 | PRTA | $151.4K | Sale | 2,900 | $52.21 | Discretionary |
| Apr 17, 2017 | PRTA | $104.6K | Sale | 2,000 | $52.29 | Discretionary |
| Apr 17, 2017 | PRTA | $5.3K | Sale | 100 | $52.70 | Discretionary |
| Apr 17, 2017 | PRTA | $59.6K | Option Exercise | 2,000 | $29.81 | Discretionary |
| Apr 17, 2017 | PRTA | $29.3K | Option Exercise | 3,000 | $9.75 | Discretionary |
| Oct 13, 2016 | PRTA | $59.0K | Sale | 1,100 | $53.61 | Discretionary |
| Oct 13, 2016 | PRTA | $29.3K | Option Exercise | 3,000 | $9.75 | Discretionary |
| Oct 13, 2016 | PRTA | $64.4K | Sale | 1,200 | $53.70 | Discretionary |
| Oct 13, 2016 | PRTA | $98.5K | Sale | 1,800 | $54.74 | Discretionary |
| Oct 13, 2016 | PRTA | $59.6K | Option Exercise | 2,000 | $29.81 | Discretionary |
| Oct 13, 2016 | PRTA | $49.2K | Sale | 900 | $54.71 | Discretionary |
| Sep 19, 2016 | PRTA | $139.1K | Option Exercise | 5,000 | $27.81 | Discretionary |
| Sep 19, 2016 | PRTA | $68.3K | Option Exercise | 7,000 | $9.75 | Discretionary |
| Sep 19, 2016 | PRTA | $278.2K | Sale | 4,500 | $61.83 | Discretionary |
| Sep 19, 2016 | PRTA | $30.0K | Sale | 500 | $60.01 | Discretionary |
| Sep 19, 2016 | PRTA | $166.9K | Sale | 2,700 | $61.83 | Discretionary |
| Sep 19, 2016 | PRTA | $258.0K | Sale | 4,300 | $60.00 | Discretionary |
| Apr 13, 2016 | PRTA | $45.3K | Sale | 1,000 | $45.28 | Discretionary |
| Apr 13, 2016 | PRTA | $19.5K | Option Exercise | 2,000 | $9.75 | Discretionary |
| Apr 13, 2016 | PRTA | $71.6K | Sale | 1,600 | $44.78 | Discretionary |