| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Swanson Chad J. | Chief Development Officer | C/O PROTHENA BIOSCIENCES INC., 1800 SIERRA POINT PARKWAY, BRISBANE | /s/ Michael Malecek, as Attorney in Fact for Chad J. Swanson | 30 Jul 2025 | 0002038509 |
| 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 | +85K | $0.00 | 85K | 28 Jul 2025 | Direct |