| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Nguyen Tran | Chief Strategy Officer and CFO | C/O PROTHENA BIOSCIENCES INC, 1800 SIERRA POINT PARKWAY, BRISBANE | /s/ Michael Malecek, as Attorney in Fact for Tran B. Nguyen | 30 Jul 2025 | 0001457013 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PRTA | Ordinary Shares, par value $0.01 per share | Award | $0 | +95,000 | +4308% | $0.000000 | 97,205 | 28 Jul 2025 | Direct |