Walker Karin L (CIK 1559422) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-30). Recent activity: Buy PRTA (15,000 shares), Sell PRTA (15,000 shares), Buy PRTA (25,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-30 | PROTHENA CORP PUBLIC LTD CO (PRTA) | Chief Accounting Officer | Buy | 15,000 | $0 |
| 2026-07-30 | PROTHENA CORP PUBLIC LTD CO (PRTA) | Chief Accounting Officer | Sell | 15,000 | $128,400 |
| 2025-07-30 | PROTHENA CORP PUBLIC LTD CO (PRTA) | Chief Accounting Officer | Buy | 25,000 | $0 |
Source: SEC Form 4 filings · as of 2026-07-30