Company: PRTA
Filing Date: 2025-03-28
Form Type: DEF 14A
Source: 0001559053-25-000017
Chunk: 32

Company: PROTHENA CORP PUBLIC LTD CO
Filing Date: 2025-03-28
Form: DEF 14A
Chunk 32
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 of certain terminations of service) and has a ten-year term. This option was a one-time grant to

induce Mr. Welch, who has significant experience serving on the boards of public companies in the pharmaceutical/biotechnology industry, to join as Chair Designate to the Board.

All of the options granted to our non-employee directors were awarded under our 2018 Long Term Incentive Plan, as amended (the “2018 LTIP”), and have a per share exercise price equal to the closing market price of our ordinary shares on the date of grant.

Mr. Nodelman, although a non-employee director, declined to receive any cash or equity compensation for his service on our Board or any of its committees.

Our sole non-independent director, Dr. Kinney (our President and Chief Executive Officer), does not receive any additional compensation for his service on our Board. Please see the Summary Compensation Table - Fiscal Year 2024 for a summary of the compensation received by Dr. Kinney with respect to fiscal year 2024.

| 18 |     | 2025 PROXY STATEMENT |

TABLE OF CONTENTS

| DIRECTOR COMPENSATION - FISCAL YEAR 2024 |

The following table sets forth the compensation paid to our non-employee directors in our fiscal year 2024.

| Name                       |     | Fees Earned or Paid in Cash(1) 
 ($)                            |        |     | Option    
 Awards(2) 
 ($)       |           |     | All Other       
 Compensation(3) 
 ($)             |       |     | Total 
 ($)   |           |
| Paula K. Cobb              |     |                                | 81,339 |     |           |   223,007 |     |                 |     — |     |       |   304,346 |
| Richard T. Collier         |     |                                | 79,634 |     |           |   223,007 |     |                 |     — |     |       |   302,641 |
| Shane M. Cooke             |     |                                | 86,951 |     |           |   223,007 |     |                 |     — |     |       |   309,958 |
| William H. Dunn, Jr.       |     |                                | 65,430 |     |           |   223,007 |     |                 |     — |     |       |   288,437 |
| Lars G. Ekman