Walker Karin L
SEC CIK 1559422 · EDGAR
BoughtSold
Most active insiders at PRTA, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | SCULLY WILLIAM P | 10% | $4.96M | — |
| 2 | Isaacs Michael John | GC, Company Sec | — | $71.1K |
| 3 | Kingston Anne Evans | Chief Strategy Off | — | $64.9K |
| 4 | Swanson Chad J. | Chief Development Off | — | — |
| 5 | Smith Brandon S. | COO | — | — |
| 6 | Zago Wagner M. | CSO | — | — |
| 7 | Kinney Gene G. | Pres, CEO, Dir | — | — |
| 8 | Walker Karin L | CAO | — | — |
| 9 | Nguyen Tran | CFO, Chief Strategy Off | — | — |
Transactions 37
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-07-30 20:34 | 2026-07-28 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | — | +15.0K | 25.0K | +150% | — |
| D | 2026-07-30 20:34 | 2026-07-28 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | D - Sale to Iss | $8.56 | -15.0K | 10.0K | -60% | -$128.4K |
| 2025-07-30 | 2025-07-28 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | A - Grant | $0.00 | +25.0K | 25.0K | New | $0 | |
| DT | 2024-01-24 | 2024-01-24 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $34.00 | -5,000 | 0 | -100% | -$170.0K |
| DT | 2024-01-24 | 2024-01-24 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $13.53 | +5,000 | 5,000 | New | +$67.7K |
| DMT | 2023-12-20 | 2023-12-20 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $37.19 | -5,000 | 0 | -100% | -$186.0K |
| DT | 2023-12-20 | 2023-12-20 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $13.53 | +5,000 | 5,000 | New | +$67.7K |
| DT | 2023-11-30 | 2023-11-30 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $34.00 | -5,000 | 0 | -100% | -$170.0K |
| DT | 2023-11-30 | 2023-11-30 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $13.53 | +5,000 | 5,000 | New | +$67.7K |
| DMT | 2023-10-25 | 2023-10-25 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $41.04 | -5,000 | 294 | -94% | -$205.2K |
| DT | 2023-10-25 | 2023-10-25 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $13.53 | +5,000 | 5,000 | New | +$67.7K |
| DT | 2023-09-19 | 2023-09-19 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +5,000 | 5,000 | New | +$75.2K |
| DT | 2023-09-19 | 2023-09-19 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $52.36 | -5,000 | 0 | -100% | -$261.8K |
| DT | 2023-08-18 | 2023-08-18 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +5,000 | 5,000 | New | +$75.2K |
| DT | 2023-08-18 | 2023-08-18 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $57.18 | -5,000 | 0 | -100% | -$285.9K |
| DMT | 2023-07-19 | 2023-07-19 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $69.19 | -5,000 | 1,034 | -83% | -$346.0K |
| DT | 2023-07-19 | 2023-07-19 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +5,000 | 5,000 | New | +$75.2K |
| D | 2023-07-03 | 2023-06-30 | BGMS | Bio Green Med Solution, Inc. | Walker Karin L | Dir | A - Grant | $0.00 | +21.2K | 40.6K | +109% | $0 |
| DT | 2023-06-20 | 2023-06-20 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +5,000 | 5,000 | New | +$75.2K |
| DMT | 2023-06-20 | 2023-06-20 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $68.90 | -5,000 | 3,000 | -62% | -$344.5K |
| DMT | 2023-05-19 | 2023-05-19 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $74.00 | -5,000 | 0 | -100% | -$370.0K |
| DT | 2023-05-19 | 2023-05-19 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +5,000 | 5,000 | New | +$75.2K |
| DMT | 2023-04-21 | 2023-04-19 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $52.89 | -5,000 | 2,083 | -71% | -$264.5K |
| DT | 2023-04-21 | 2023-04-19 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +5,000 | 5,000 | New | +$75.2K |
| DM | 2023-03-22 | 2023-03-20 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $47.72 | -5,000 | 0 | -100% | -$238.6K |
| D | 2023-03-22 | 2023-03-20 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +5,000 | 5,000 | New | +$75.2K |
| D | 2023-03-17 | 2023-03-15 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +20.0K | 20.0K | New | +$300.8K |
| DM | 2023-03-17 | 2023-03-15 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $48.41 | -20.0K | 10.6K | -65% | -$968.3K |
| DM | 2022-11-18 | 2022-11-18 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $57.07 | -10.0K | 226 | -98% | -$570.7K |
| D | 2022-11-18 | 2022-11-18 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +10.0K | 10.0K | New | +$150.4K |
| D | 2022-10-26 | 2022-10-24 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +20.0K | 20.0K | New | +$300.8K |
| DM | 2022-10-26 | 2022-10-24 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $57.23 | -20.0K | 0 | -100% | -$1.14M |
| D | 2022-06-16 | 2022-06-14 | BGMS | Bio Green Med Solution, Inc. | Walker Karin L | Dir | A - Grant | $0.00 | +15.8K | 19.4K | +444% | $0 |
| DM | 2021-11-26 | 2021-11-23 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $57.88 | -4,519 | 0 | -100% | -$261.6K |
| D | 2021-11-26 | 2021-11-23 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $15.04 | +4,519 | 4,519 | New | +$68.0K |
| DM | 2021-10-22 | 2021-10-20 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | M - OptEx | $16.97 | +23.0K | 20.0K | New | +$390.2K |
| DM | 2021-10-22 | 2021-10-20 | PRTA | PROTHENA CORP PUBLIC LTD CO | Walker Karin L | CAO | S - Sale+OE | $60.25 | -23.0K | 3,885 | -86% | -$1.39M |
Purchase Sale Sale after option exercise All abbreviations