Company: PRTA
Filing Date: 2025-09-25
Form Type: PRE 14A
Source: 0001140361-25-036135
Chunk: 17

Company: PROTHENA CORP PUBLIC LTD CO
Filing Date: 2025-09-25
Form: PRE 14A
Chunk 17
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 BlackRock Asset Management Ireland Limited; BlackRock Financial Management, Inc.; BlackRock Japan Co., Ltd; BlackRock Asset Management Schweiz AG; BlackRock Investment Management, LLC; BlackRock Investment Management (UK) Limited; BlackRock Asset Management Canada Limited; BlackRock Investment Management (Australia) Limited; BlackRock Fund Advisors; and BlackRock Fund Managers Ltd. According to BlackRock’s most recent Form 13F filed with the SEC on August 12, 2025, reporting the securities it held as of June 30, 2025, BlackRock reported ownership of 3,939,398 ordinary shares (or 7.3% of our outstanding shares as of September 24, 2025). The address of the beneficial owner is 50 Hudson Yards, New York, NY 10001, USA. |

| (8) | As reported on Schedule 13G filed with the SEC on August 14, 2025, by ADAR1 Capital Management, LLC (“ADAR1”), ADAR1 Capital Management GP, LLC (“ADAR1 GP”), and Daniel Schneeberger, reporting beneficial ownership as of June 30, 2025. ADAR1 has shared voting and dispositive power over 3,375,009 ordinary shares, consisting of (i) 2,892,995 ordinary shares owned by ADAR1 Partners, LP (ADAR1 LP”) and (ii) 482,014 ordinary shares held by Spearhead Insurance Solutions IDF, LLC (“Spearhead”) as of June 30, 2025. As the investment manager of ADAR1 LP and as the sub-advisor of Spearhead, ADAR1 may be deemed to indirectly beneficially own securities held by ADAR1 LP and Spearhead. ADAR1 GP has shared voting and dispositive power over 2,892,995 ordinary shares, all of which are held by ADAR1 Partners, LP as of June 30, 2025. ADAR1 GP, as the general partner of ADAR1 LP, may be deemed to indirectly beneficially own securities held by ADAR1 LP. Mr. Daniel Schneeberger has shared voting and dispositive power over 2,892,995 ordinary shares, consisting of (i) 2,892,995 ordinary shares held by ADAR1 LP and (ii) 482,014 ordinary shares held by Spearhead as of June 30, 2025. As the manager of ADAR1 Capital Management