Smith Brandon S.
SEC insider (Form 3/4/5 filer). CIK 0001805226. Chief Operating 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 Smith Brandon S. has filed insider reports for
- PROTHENA CORP PUBLIC LTD CO (PRTA): Officer, Chief Operating Officer
Smith Brandon S.
CIK: 0001805226
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
ExerciseDirect78K shares- - Jul 28, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
DispositionDirect78K shares at avg. $8.56$668K - Mar 3, 2026PRTA
PROTHENA CORP PUBLIC LTD CO
AwardDirectStock Option (Right to Buy)
190K shares- - Jul 28, 2025PRTA
PROTHENA CORP PUBLIC LTD CO
AwardDirect130K shares- - Mar 5, 2025PRTA
PROTHENA CORP PUBLIC LTD CO
AwardDirectStock Option (Right to Buy)
107.5K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jul 28, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Exercise | 78,000 | - | $0 | Direct |
| Jul 28, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Disposition | 78,000 | $8.56 | $667,680 | Direct |
| Mar 3, 2026 | PRTA PROTHENA CORP PUBLIC LTD CO | Award Stock Option (Right to Buy) | 190,000 | - | - | Direct |
| Jul 28, 2025 | PRTA PROTHENA CORP PUBLIC LTD CO | Award | 130,000 | - | - | Direct |
| Mar 5, 2025 | PRTA PROTHENA CORP PUBLIC LTD CO | Award Stock Option (Right to Buy) | 107,500 | - | - | Direct |
1-5 of 5 transactions