Business Context and Reporting Period
This Form 8-K is a current report filed by Prothena Corporation plc on December 10, 2025. The filing reports a corporate governance event regarding the Board of Directors.
Financial Metrics
The filing text does not provide a clear value for revenue, profit, cash flow, margins, debt, or liquidity. This report focuses exclusively on personnel changes and does not contain financial statements or performance metrics.
Material Changes
The material change reported is the resignation of Paula Cobb from the Board of Directors. Her resignation is effective as of December 31, 2025. Ms. Cobb will continue to serve on the Board, the Compensation Committee, and the Audit Committee until that date. The filing explicitly states that her decision to resign was not due to any disagreement with the Company regarding operations, policies, or practices.
Guidance, Outlook, and Risks
The filing contains no guidance, outlook, management commentary on financial performance, or discussion of risks and contingencies beyond the standard disclosure regarding the director's departure.
Key Facts for Investor Verification
- Paula Cobb is resigning from the Board of Directors effective December 31, 2025.
- Ms. Cobb will remain on the Compensation and Audit Committees until her departure date.
- The resignation is not related to any disagreement with the Company.
- The report was signed by Tran B. Nguyen, Chief Strategy Officer and Chief Financial Officer, on December 12, 2025.