Company: PRTA
Filing Date: 2025-03-28
Form Type: DEF 14A
Source: 0001559053-25-000017
Chunk: 28

Company: PROTHENA CORP PUBLIC LTD CO
Filing Date: 2025-03-28
Form: DEF 14A
Chunk 28
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 significant emerging

regulatory, research, scientific, and medical trends and developments relevant to the Company’s research and development activities and strategy, including their potential impact on the Company’s programs or plans.

The current members of our Research and Development Committee are Dr. Dunn, Dr. Ekman, and Dr. Selkoe. Dr. Ekman serves as chair of the Committee. Each member of the Committee is an "independent director" under Nasdaq rules. The Committee operates under a written charter, a copy of which is available on our website at https://ir.prothena.com/corporate-governance .

| Meetings of the Board and Committees, Meeting Attendance and Shareholder Meeting Attendance |

During our fiscal year 2024, our Board met four times, our Audit Committee met seven times, our Compensation Committee met five times, our Nominating and Corporate Governance Committee met four times, and our Research and Development Committee met three times.

During our fiscal year 2024, each of our current directors attended at least 75% of all meetings of the

Board and committees of the Board of which the director was a member.

We encourage all of our directors and nominees for director to attend our annual general meetings of shareholders, although attendance is not mandatory. In 2024, ten of our eleven directors then serving on our Board attended our annual general meeting of shareholders and were available to answer questions.

| Other Corporate Governance Matters |

Corporate Governance Guidelines . As a part of our Board's commitment to enhancing shareholder value over the long term, our Board has adopted Corporate Governance Guidelines. Our Corporate Governance Guidelines cover, among other topics, board composition, director independence, new director orientation and continuing education, annual Board performance evaluations, Board and director responsibilities, director access to management and independent advisors, Board committees and director compensation. Our Corporate Governance Guidelines are available on our website at https://ir.prothena.com/corporate-governance .

Majority Voting for Election of Directors. Our directors are elected by the affirmative vote of a majority of the votes cast by our shareholders at an annual general meeting. Any nominee for director who does not receive a majority of the votes cast is

not elected to our Board. Accordingly, there is no "holdover" rule under Irish law or our Constitution.

Staggered Board. Our Constitution requires that at least one-third (which, if not a round number, is rounded to the number which is nearest to and less than one-third) of the directors must stand for election at each annual general meeting, and