Company: PRTA
Filing Date: 2025-03-28
Form Type: DEF 14A
Source: 0001559053-25-000017
Chunk: 54

Company: PROTHENA CORP PUBLIC LTD CO
Filing Date: 2025-03-28
Form: DEF 14A
Chunk 54
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 applicable.

(2) For purposes of this table, a person is deemed to have beneficial ownership of our ordinary shares which such person has the right to acquire on or within 60 days after March 3, 2025. The shares reported in this column consist of shares that may be acquired by exercise of NQSOs (nonqualified stock options) granted under our Amended and Restated 2012 Long Term Incentive Plan, our 2018 Long Term Incentive Plan, as amended, or our 2020 Employment Inducement Incentive Plan, as amended.

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TABLE OF CONTENTS

| SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT |

(3) The percentage of outstanding shares is based on the 53,826,982 ordinary shares issued and outstanding on March 3, 2025. However, for purposes of computing the percentage of outstanding ordinary shares beneficially owned by each person or group of persons, any shares which such person or group of persons has a right to acquire on or within 60 days after March 3, 2025, are deemed to be outstanding, but are not deemed to be outstanding for the purpose of computing the percentage of beneficial ownership of any other person.

(4) As reported on (i) Amendment No. 4 to Schedule 13D filed with the SEC on January 3, 2025, by EcoR1 Capital, LLC ("EcoR1"), EcoR1 Capital Fund Qualified, L.P. ("Qualified Fund") and Oleg Nodelman, reporting beneficial ownership as of December 31, 2024. EcoR1 and Mr. Nodelman have shared voting and dispositive power over 11,584,280 ordinary shares, and Qualified Fund has shared voting and dispositive power over 10,847,852 ordinary shares. Mr. Nodelman is the manager and control person of EcoR1. EcoR1 is an investment advisor to Qualified Fund and EcoR1 Capital Fund, L.P. Each of EcoR1, Qualified Fund, and Mr. Nodelman disclaim beneficial ownership of the shares reported herein, except to the extent of such person’s pecuniary interest therein. The address of the beneficial owner is 357 Tehama Street, #3, San Francisco, California 94103, USA.

(5) As reported on Amendment No. 3 to Schedule 13G filed with