Walker Karin L
SEC insider (Form 3/4/5 filer). CIK 0001559422. Chief Accounting Officer at PROTHENA CORP PUBLIC LTD CO (PRTA). 5 reported Form 4/5 transactions since Sep 2024; latest on Jul 28, 2026. Located in BRISBANE, CA.
Companies Walker Karin L has filed insider reports for
- PROTHENA CORP PUBLIC LTD CO (PRTA): Officer, Chief Accounting Officer
Walker Karin L
CIK: 0001559422
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
PROTHENA CORP PUBLIC LTD CO
Discretionary Trading P&L
Holdings
Transaction History (5 total)
- Jul 28, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
ExerciseDirect15K shares- - Jul 28, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
DispositionDirect15K shares at avg. $8.56$128K - Mar 3, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
AwardDirectStock Option (Right to Buy)
150K shares- - Jul 28, 2025PRTA
PROTHENA CORP PUBLIC LTD CO
AwardDirect25K shares- - Mar 5, 2025PRTA
PROTHENA CORP PUBLIC LTD CO
AwardDirectStock Option (Right to Buy)
70K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jul 28, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Exercise | 15,000 | - | $0 | Direct |
| Jul 28, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Disposition | 15,000 | $8.56 | $128,400 | Direct |
| Mar 3, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Award Stock Option (Right to Buy) | 150,000 | - | - | Direct |
| Jul 28, 2025 | PRTA PROTHENA CORP PUBLIC LTD CO | Award | 25,000 | - | - | Direct |
| Mar 5, 2025 | PRTA PROTHENA CORP PUBLIC LTD CO | Award Stock Option (Right to Buy) | 70,000 | - | - | Direct |
1-5 of 5 transactions