| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Prothena Corporation Plc (PRTA) has 15 insiders with recent SEC Form 4 filings, including 8 buys and 14 sells. PRTA is classified in the Biotechnology industry within the Health Care sector.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| 10% | 756.0K | $7.58M | +20.0K | |
| CEO | 152.8K | $1.53M | - | |
| COO | 130.0K | $1.30M | - | |
| Other | 100.0K | $1.00M | - | |
| CFO | 97.2K | $974.0K | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 16, 2026 | Scully William P | 10% Owner | Buy | 20,000 | $7.90 | $157,990.00 | +2.7% | - | - | |
| May 22, 2026 | Scully William P | 10% Owner | Buy | 100,000 | $9.81 | $981,300.00 | +13.6% | - | - | |
| May 6, 2025 | Ecor1 Capital, LLC75 | 10% Owner | Sell | 6,279,684 | $8.10 | $50,839,807.34 | -23.1% | -5.6% | +52.1% | |
| Jan 14, 2025 | Scully William P | 10% Owner | Buy | 207,436 | $13.26 | $2,749,916.18 | +4.8% | -21.5% | -27.4% | |
| Jan 24, 2024 | Walker Karin L82 | Chief Accounting Officer | Sale+OE | 5,000 | $34.00 | $170,000.00 | -100% | -37.6% | -53.0% | |
| Dec 20, 2023 | Walker Karin L82 | Chief Accounting Officer | Sale+OE | 5,000 | $37.19 | $185,951.73 | -60.1% | -32.0% | -56.6% | |
| Nov 30, 2023 | Walker Karin L82 | Chief Accounting Officer | Sale+OE | 5,000 | $34.00 | $170,000.00 | -100% | -11.0% | -50.2% | |
| Oct 25, 2023 | Walker Karin L82 | Chief Accounting Officer | Sale+OE | 5,000 | $41.04 | $205,191.33 | -58.8% | -15.1% | -59.0% | |
| Oct 11, 2023 | Smith Brandon S.80 | Chief Operating Officer | Sale+OE | 4,000 | $46.75 | $186,984.61 | -90.0% | -16.0% | -64.4% | |
| Oct 4, 2023 | Karp Carol D.81 | Chief Regulatory Officer | Sale+OE | 5,000 | $46.62 | $233,084.31 | -88.3% | -14.9% | -62.9% |