Company: PRTA
Filing Date: 2025-03-28
Form Type: DEF 14A
Source: 0001559053-25-000017
Chunk: 15

Company: PROTHENA CORP PUBLIC LTD CO
Filing Date: 2025-03-28
Form: DEF 14A
Chunk 15
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| Human Capital Management                                                                                               
 Experience in attracting and retaining top talent and building organizational culture                                  |     | l             |     | l                  |     |                |     | l                    |     | l             |     | l            |     | l              |     | l                |     | l               |

| 8 |     | 2025 PROXY STATEMENT |

TABLE OF CONTENTS

| PROPOSAL NO. 1 – ELECTION OF DIRECTORS |

| Basic Information (as of 3/28/2025) |     | Paula K. Cobb |     | Richard T. Collier |     | Shane M. Cooke |     | William H. Dunn, Jr. |     | Lars G. Ekman |     | Helen S. Kim |     | Gene G. Kinney |     | Dennis J. Selkoe |     | Daniel G. Welch |
| Independent                         |     |             l |     |                  l |     |              l |     |                    l |     |             l |     |            l |     |                |     |                l |     |               l |
| Age                                 |     |            52 |     |                 71 |     |             62 |     |                   55 |     |            75 |     |           62 |     |             56 |     |               81 |     |              67 |
| Tenure (Years)                      |     |           5.7 |     |               12.3 |     |           12.3 |     |                  1.9 |     |          12.3 |     |          2.6 |     |            8.5 |     |             11.7 |     |             1.1 |

| 65 YRS  |     | 7.6 YRS |     | 22%    |     | 22%         |
| Average 
 Age     |     | Average 
 Tenure  |     | Female |     | Under-      
 represented 
 Group       |

| Nominees for Election to Terms Expiring No Later than the Annual General Meeting of Shareholders in 2028; Recommendation of the Board |

Paula K. Cobb was most recently Chief Business Officer at Affinia Therapeutics, Inc., a biotechnology company developing gene therapies, a position she held from 2020 through 2023. From 2016 to 2019, Ms.