| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Kinney Gene G. | President and CEO, Director | C/O PROTHENA BIOSCIENCES INC, 1800 SIERRA POINT PARKWAY, BRISBANE | /s/ Michael J. Malecek, as Attorney-in-Fact for Gene G. Kinney | 30 Jul 2025 | 0001564380 |
| 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 | +140,000 | +1094% | $0.000000 | 152,793 | 28 Jul 2025 | Direct |