PRTA PROTHENA CORP PUBLIC LTD CO
Nasdaq · SEC CIK 1559053 · EDGAR
- Bought, last 12 months
- $4.96M 10 purchases by 1 insiders
- Sold, last 12 months
- $136.0K 2 sales by 2 insiders
- Filings on record
- 215 since 2021-07-12, latest 2026-09-21 16:23
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| SCULLY WILLIAM P | 10% | $4.96M | — |
| Isaacs Michael John | GC, Company Sec | — | $71.1K |
| Kingston Anne Evans | Chief Strategy Off | — | $64.9K |
| Swanson Chad J. | Chief Development Off | — | — |
| Smith Brandon S. | COO | — | — |
| Zago Wagner M. | CSO | — | — |
| Kinney Gene G. | Pres, CEO, Dir | — | — |
| Walker Karin L | CAO | — | — |
| Nguyen Tran | CFO, Chief Strategy Off | — | — |
Transactions 243
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2022-08-03 | 2022-08-01 | PRTA | Garren Hideki | Chief Medical Off | S - Sale+OE | $30.52 | -4,000 | 0 | -100% | -$122.1K |
| D | 2022-08-03 | 2022-08-01 | PRTA | Garren Hideki | Chief Medical Off | M - OptEx | $24.90 | +4,000 | 4,000 | New | +$99.6K |
| D | 2022-07-29 | 2022-07-27 | PRTA | Kinney Gene G. | Pres, CEO | M - OptEx | $6.41 | +376 | 13.2K | +3% | +$2,410 |
| D | 2022-07-29 | 2022-07-27 | PRTA | Kinney Gene G. | Pres, CEO | S - Sale+OE | $32.00 | -376 | 12.8K | -3% | -$12.0K |
| D | 2022-07-22 | 2022-07-20 | PRTA | Cooke Shane | Dir | M - OptEx | $6.41 | +15.0K | 15.0K | New | +$96.2K |
| D | 2022-07-22 | 2022-07-20 | PRTA | Cooke Shane | Dir | S - Sale+OE | $32.90 | -15.0K | 0 | -100% | -$493.5K |
| DM | 2022-07-22 | 2022-07-20+ | PRTA | Nguyen Tran | CFO, Chief Strategy Off | S - Sale+OE | $32.54 | -70.0K | 3,205 | -96% | -$2.28M |
| DM | 2022-07-22 | 2022-07-20+ | PRTA | Nguyen Tran | CFO, Chief Strategy Off | M - OptEx | $6.73 | +70.0K | 23.8K | New | +$471.1K |
| D | 2022-07-08 | 2022-07-06 | PRTA | Garren Hideki | Chief Medical Off | S - Sale+OE | $30.00 | -8,000 | 0 | -100% | -$240.0K |
| D | 2022-07-08 | 2022-07-06 | PRTA | Garren Hideki | Chief Medical Off | M - OptEx | $24.90 | +8,000 | 8,000 | New | +$199.2K |
| I | 2022-05-09 | 2022-05-05 | PRTA | EcoR1 Capital, LLC | 10% | P - Purchase | $29.02 | +1.06M | 11.58M | +10% | +$30.84M |
| I | 2022-05-09 | 2022-05-05 | PRTA | EcoR1 Capital, LLC | 10% | S - Sale | $29.02 | -1.06M | 11.58M | -8% | -$30.84M |
| DM | 2022-04-13 | 2022-04-11 | PRTA | Cooke Shane | Dir | S - Sale+OE | $35.08 | -5,000 | 0 | -100% | -$175.4K |
| D | 2022-04-13 | 2022-04-11 | PRTA | Cooke Shane | Dir | M - OptEx | $6.41 | +5,000 | 5,000 | New | +$32.0K |
| DM | 2022-04-07 | 2022-04-05 | PRTA | COLLIER RICHARD T | Dir | S - Sale+OE | $39.41 | -5,000 | 1,219 | -80% | -$197.0K |
| D | 2022-04-07 | 2022-04-05 | PRTA | COLLIER RICHARD T | Dir | M - OptEx | $6.41 | +5,000 | 6,219 | +410% | +$32.0K |
| I | 2022-01-12 | 2022-01-12 | PRTA | EcoR1 Capital, LLC | 10% | P - Purchase | $37.50 | +300.0K | 11.58M | +3% | +$11.25M |
| D | 2022-01-05 | 2022-01-03 | PRTA | Selkoe Dennis J. | Dir | M - OptEx | $9.23 | +5,000 | 7,845 | +176% | +$46.1K |
| DM | 2022-01-05 | 2022-01-03 | PRTA | Selkoe Dennis J. | Dir | S - Sale+OE | $47.45 | -5,000 | 5,712 | -47% | -$237.2K |
| DM | 2021-11-26 | 2021-11-23 | PRTA | Walker Karin L | CAO | S - Sale+OE | $57.88 | -4,519 | 0 | -100% | -$261.6K |
| D | 2021-11-26 | 2021-11-23 | PRTA | Walker Karin L | CAO | M - OptEx | $15.04 | +4,519 | 4,519 | New | +$68.0K |
| D | 2021-11-19 | 2021-11-19 | PRTA | Malecek Michael J | See Remarks | S - Sale+OE | $55.00 | -10.0K | 0 | -100% | -$550.0K |
| D | 2021-11-19 | 2021-11-19 | PRTA | Malecek Michael J | See Remarks | M - OptEx | $10.27 | +10.0K | 10.0K | New | +$102.7K |
| DM | 2021-11-03 | 2021-11-01 | PRTA | Karp Carol D. | Chief Regulatory Off | S - Sale+OE | $57.18 | -10.0K | 0 | -100% | -$571.8K |
| D | 2021-11-03 | 2021-11-01 | PRTA | Karp Carol D. | Chief Regulatory Off | M - OptEx | $15.04 | +10.0K | 10.0K | New | +$150.4K |
| DM | 2021-10-29 | 2021-10-27 | PRTA | Malecek Michael J | See Remarks | S - Sale+OE | $58.52 | -10.0K | 0 | -100% | -$585.2K |
| D | 2021-10-29 | 2021-10-27 | PRTA | Malecek Michael J | See Remarks | M - OptEx | $10.27 | +10.0K | 10.0K | New | +$102.7K |
| DM | 2021-10-22 | 2021-10-20 | PRTA | Walker Karin L | CAO | M - OptEx | $16.97 | +23.0K | 20.0K | New | +$390.2K |
| DM | 2021-10-22 | 2021-10-20 | PRTA | Walker Karin L | CAO | S - Sale+OE | $60.25 | -23.0K | 3,885 | -86% | -$1.39M |
| D | 2021-10-01 | 2021-10-01 | PRTA | Karp Carol D. | Chief Regulatory Off | M - OptEx | $15.04 | +10.0K | 10.0K | New | +$150.4K |
| DM | 2021-10-01 | 2021-10-01 | PRTA | Karp Carol D. | Chief Regulatory Off | S - Sale+OE | $68.24 | -10.0K | 4,780 | -68% | -$682.4K |
| DM | 2021-10-01 | 2021-10-01 | PRTA | Selkoe Dennis J. | Dir | S - Sale+OE | $67.83 | -5,000 | 3,551 | -58% | -$339.2K |
| D | 2021-10-01 | 2021-10-01 | PRTA | Selkoe Dennis J. | Dir | M - OptEx | $9.23 | +5,000 | 7,845 | +176% | +$46.1K |
| DM | 2021-09-10 | 2021-09-09 | PRTA | Karp Carol D. | Chief Regulatory Off | S - Sale+OE | $71.99 | -10.0K | 4,542 | -69% | -$719.9K |
| D | 2021-09-10 | 2021-09-09 | PRTA | Karp Carol D. | Chief Regulatory Off | M - OptEx | $15.04 | +10.0K | 10.0K | New | +$150.4K |
| DM | 2021-07-30 | 2021-07-30 | PRTA | Selkoe Dennis J. | Dir | S - Sale+OE | $49.47 | -5,000 | 5,563 | -47% | -$247.4K |
| DM | 2021-07-30 | 2021-07-30 | PRTA | Selkoe Dennis J. | Dir | M - OptEx | $14.26 | +5,000 | 6,345 | +372% | +$71.3K |
| DM | 2021-07-16 | 2021-07-14 | PRTA | HENNEY CHRISTOPHER S | Dir | S - Sale+OE | $55.46 | -11.1K | 2,000 | -85% | -$616.0K |
| D | 2021-07-16 | 2021-07-14 | PRTA | HENNEY CHRISTOPHER S | Dir | M - OptEx | $11.33 | +11.1K | 11.1K | New | +$125.9K |
| DMA | 2021-07-13 | 2021-07-12 | PRTA | HENNEY CHRISTOPHER S | Dir | M - OptEx | $9.79 | +23.9K | 6,392 | New | +$233.9K |
| DMA | 2021-07-13 | 2021-07-12 | PRTA | HENNEY CHRISTOPHER S | Dir | S - Sale+OE | $55.50 | -23.9K | 11.3K | -68% | -$1.33M |
| DM | 2021-07-12 | 2021-07-12 | PRTA | HENNEY CHRISTOPHER S | Dir | S - Sale+OE | $55.50 | -23.9K | 1,977 | -92% | -$1.33M |
| DM | 2021-07-12 | 2021-07-12 | PRTA | HENNEY CHRISTOPHER S | Dir | M - OptEx | $9.79 | +23.9K | 6,392 | New | +$233.9K |
Purchase Sale Sale after option exercise All abbreviations