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PROTHENA CORPORATION PLC 2024-2025 Proxy Voting Records

Compiled from SEC Form N-PX filings and PROTHENA CORPORATION PLC’s Form 8-K, filed 2025-05-16 (Item 5.07 on EDGAR). Page generated 02 October 2026.

6Ballot items
232Asset managers
1,455Fund votes
2025-05-13Meeting date

Proxy season: 2023-2024 2024-2025 2025-2026

Explore PROTHENA CORPORATION PLC in the interactive database Compare manager voting policies

Official 2024-2025 meeting results reported by PROTHENA CORPORATION PLC

These tallies are PROTHENA CORPORATION PLC’s own, as disclosed to the U.S. Securities and Exchange Commission on Form 8-K, filed 2025-05-16 (Item 5.07, “Submission of Matters to a Vote of Security Holders”). They cover every share voted at the meeting, not just the funds that file Form N-PX.

PROTHENA CORPORATION PLC — official shareholder meeting results, meeting held 2025-05-13
Ballot item	For	Against	Abstain	Withheld	Broker non-votes	Outcome
Elect Director: Paula K. Cobb	46,937,071	169,323	12,180	--	3,206,201	Majority: yes
Elect Director: Lars G. Ekman	46,550,069	556,607	11,898	--	3,206,201	Majority: yes
Elect Director: Gene G. Kinney	37,417,845	9,688,928	11,801	--	3,206,201	Majority: yes
Proposal 2: Ratification of Appointment of the Company's Independent Registered Public Accounting Firm for 2025 and Authorization of the Board of Directors to Approve the Remuneration of that Auditor. The shareholders ratified, in a non-binding vote, the appoi	50,252,343	58,051	14,381	--	--	Majority: yes
Proposal 3: Approval of Compensation of the Company's Named Executive Officers. The shareholders approved, in a non-binding advisory vote, the compensation of the Company's executive officers named in the Proxy Statement.	34,696,557	11,221,019	1,200,998	--	3,206,201	Majority: yes
Proposal 4: Approval of an Amendment to the Company's 2018 Long Term Incentive Plan. The shareholders approved the Amendment, which increases the number of ordinary shares available for issuance under the 2018 LTIP by 2,000,000 ordinary shares.	31,061,458	14,862,520	1,194,596	--	3,206,201	Majority: yes

Source: PROTHENA CORPORATION PLC, Form 8-K, filed with the SEC on 2025-05-16 — read the filing on EDGAR.

How asset managers voted at the PROTHENA CORPORATION PLC 2024-2025 meeting

Each item below shows how the 232 asset managers that disclosed a PROTHENA CORPORATION PLC vote in their SEC Form N-PX filings actually voted. Share totals are the shares those managers' funds voted, summed across every fund they report.

1. TO APPROVE, IN A NON-BINDING ADVISORY VOTE, THE COMPENSATION OF THE EXECUTIVE OFFICERS NAMED IN THE COMPANY'S PROXY STATEMENT FOR THE ANNUAL GENERAL MEETING.

SECTION 14A SAY-ON-PAY VOTESMajority of the votes cast: yes

Combines 9 wordings of this item as funds reported it.

76% Majority: yes · of votes cast

FOR 76%AGAINST 24%

FOR: 34,696,557AGAINST: 11,221,019

PROTHENA CORPORATION PLC’s own tally for this item (“Proposal 3: Approval of Compensation of the Company's Named Executive Officers. The shareholders approved, in a non-binding advisory vote, the compensation of the Company's executive officers named in the Proxy Statement”): 34,696,557 for, 11,221,019 against, per its Form 8-K filed 2025-05-16 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 53,826,982 outstanding shares: 64% for, 21% against (85% of the company cast a for/against vote).

The 230 asset managers below cast 98% of the shares they voted on this item FOR. Fund share totals are not shown for this item: fund-reported shares overlap across filings (an adviser and the funds it manages can each report the same shares), and here their sum exceeds the total votes cast at the meeting.

FOR 98%

FOR: 97.6%AGAINST: 2.3%ABSTAIN: 0.0%

Largest asset managers voting on “TO APPROVE, IN A NON-BINDING ADVISORY VOTE, THE COMPENSATION OF THE EXECUTIVE OFFICERS NAMED IN THE COMPANY'S ” at PROTHENA CORPORATION PLC, 2024-2025
Asset manager	For	Against	Abstain	Vote
Fidelity	13,050,355	0	0	For
EcoR1 Capital, LLC	8,266,342	0	0	For
T. Rowe Price	6,455,129	0	0	For
Vanguard	5,541,791	264	0	For
Wellington	4,830,017	0	0	For
BlackRock	1,810,849	22,222	0	For
Palo Alto Investors LP	1,737,964	0	0	For
State Street	1,394,234	130	0	For
Siren, L.L.C.	1,119,847	0	0	For
Federated Hermes	1,082,025	6,166	0	For
GEODE CAPITAL MANAGEMENT, LLC	968,921	0	0	For
Candriam S.C.A.	0	794,145	0	Against
Charles Schwab	649,598	0	0	For
Finepoint Capital LP	640,071	0	0	For
JPMorgan	518,934	0	0	For
Rock Springs Capital Management LP	508,524	0	0	For
Dimensional	315,385	0	0	For
Northern Trust	234,143	0	0	For
Birchview Capital, LP	198,000	0	0	For
DCF Advisers, LLC	0	157,750	0	Against
Equitable	120,084	0	0	For
Brighthouse	108,493	0	8,334	For
Nuveen	109,376	0	0	For
TIAA	107,955	0	0	For
UBS	0	89,228	0	Against

Showing the 25 largest of 230 asset managers. See all 230 in the interactive database.

2. TO APPROVE AN AMENDMENT TO THE COMPANY'S 2018 LONG TERM INCENTIVE PLAN TO INCREASE THE NUMBER OF ORDINARY SHARES AVAILABLE FOR ISSUANCE UNDER THAT PLAN BY 2,000,000 ORDINARY SHARES.

COMPENSATIONMajority of the votes cast: yes

Combines 3 wordings of this item as funds reported it.

68% Majority: yes · of votes cast

FOR 68%AGAINST 32%

FOR: 31,061,458AGAINST: 14,862,520

PROTHENA CORPORATION PLC’s own tally for this item (“Proposal 4: Approval of an Amendment to the Company's 2018 Long Term Incentive Plan. The shareholders approved the Amendment, which increases the number of ordinary shares available for issuance under the 2018 LTIP by 2,”): 31,061,458 for, 14,862,520 against, per its Form 8-K filed 2025-05-16 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 53,826,982 outstanding shares: 58% for, 28% against (85% of the company cast a for/against vote).

The 57 asset managers below cast 93% of the shares they voted on this item FOR (15,017,490 for, 1,105,436 against).

FOR 93%

FOR: 15,017,490 (93.1%)AGAINST: 1,105,436 (6.9%)ABSTAIN: 8,334 (0.1%)

Largest asset managers voting on “TO APPROVE AN AMENDMENT TO THE COMPANY'S 2018 LONG TERM INCENTIVE PLAN TO INCREASE THE NUMBER OF ORDINARY SHAR” at PROTHENA CORPORATION PLC, 2024-2025
Asset manager	For	Against	Abstain	Vote
Vanguard	5,415,157	0	0	For
Fidelity	5,279,983	0	0	For
T. Rowe Price	2,769,845	0	0	For
Federated Hermes	533,215	0	0	For
Charles Schwab	324,799	0	0	For
State Street	0	317,491	0	Against
Dimensional	0	251,198	0	Against
JPMorgan	170,456	0	0	For
Equitable	74,804	45,280	0	For
Brighthouse	93,132	15,361	8,334	For
TIAA	0	107,954	0	Against
BlackRock	98,063	0	0	For
John Hancock	56,780	7,437	0	For
Hartford	64,168	0	0	For
Lincoln Financial	6,090	55,998	0	Against
MFS	0	44,223	0	Against
Thrivent	0	37,634	0	Against
American Century	0	31,632	0	Against
Transamerica	30,729	0	0	For
ProShares	0	26,868	0	Against
Northern Trust	25,091	0	0	For
Global X	24,643	0	0	For
Direxion Shares ETF Trust	0	22,938	0	Against
WisdomTree	0	20,707	0	Against
Pacific Life	16,847	0	0	For

Showing the 25 largest of 57 asset managers. See all 57 in the interactive database.

3. To ratify, on a non-binding vote, the appointment of KPMG LLP as the Company's independent registered public accounting firm for its fiscal year 2025, and to authorize, in a binding vote, the Company's Board of Directors, acting through its Audit Committee, to approve remuneration of that auditor.

AUDIT-RELATEDMajority of the votes cast: yes

Combines 4 wordings of this item as funds reported it.

99.8% Majority: yes · of votes cast

FOR 99.8%

FOR: 50,252,343AGAINST: 58,051

PROTHENA CORPORATION PLC’s own tally for this item (“Proposal 2: Ratification of Appointment of the Company's Independent Registered Public Accounting Firm for 2025 and Authorization of the Board of Directors to Approve the Remuneration of that Auditor. The shareholders ra”): 50,252,343 for, 58,051 against, per its Form 8-K filed 2025-05-16 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 53,826,982 outstanding shares: 93% for, 0.2% against (93% of the company cast a for/against vote).

The 56 asset managers below cast 99.9% of the shares they voted on this item FOR (16,123,404 for, 139 against).

FOR 99.9%

FOR: 16,123,404 (99.9%)AGAINST: 139 (0.0%)ABSTAIN: 8,334 (0.1%)

Largest asset managers voting on “To ratify, on a non-binding vote, the appointment of KPMG LLP as the Company's independent registered public a” at PROTHENA CORPORATION PLC, 2024-2025
Asset manager	For	Abstain	Vote
Vanguard	5,415,157	0	For
Fidelity	5,279,983	0	For
T. Rowe Price	2,769,845	0	For
Federated Hermes	533,215	0	For
Charles Schwab	324,799	0	For
State Street	317,491	0	For
Dimensional	251,198	0	For
JPMorgan	170,456	0	For
Equitable	120,084	0	For
Brighthouse	108,493	8,334	For
TIAA	107,954	0	For
BlackRock	98,063	0	For
John Hancock	64,217	0	For
Hartford	64,168	0	For
Lincoln Financial	62,088	0	For
MFS	44,223	0	For
Thrivent	37,634	0	For
American Century	31,632	0	For
Transamerica	30,729	0	For
ProShares	26,868	0	For
Northern Trust	25,091	0	For
Global X	24,643	0	For
Direxion Shares ETF Trust	22,938	0	For
WisdomTree	20,707	0	For
Pacific Life	16,847	0	For

Showing the 25 largest of 56 asset managers. See all 56 in the interactive database.

4. To elect, by separate resolution, three directors to hold office until no later than the Annual General Meeting of the Company's Shareholders in 2028, unless they resign, are removed from office, or are otherwise disqualified from serving as directors of the Company: Gene G. Kinney

DIRECTOR ELECTIONSMajority of the votes cast: yes

Combines 3 wordings of this item as funds reported it.

79% Majority: yes · of votes cast

FOR 79%AGAINST 21%

FOR: 37,417,845AGAINST: 9,688,928

PROTHENA CORPORATION PLC’s own tally for this item (“Elect Director: Gene G. Kinney”): 37,417,845 for, 9,688,928 against, per its Form 8-K filed 2025-05-16 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 53,826,982 outstanding shares: 70% for, 18% against (88% of the company cast a for/against vote).

The 55 asset managers below cast 99.9% of the shares they voted on this item FOR (16,118,475 for, 5,068 against).

FOR 99.9%

FOR: 16,118,475 (99.9%)AGAINST: 5,068 (0.0%)ABSTAIN: 8,334 (0.1%)

Largest asset managers voting on “To elect, by separate resolution, three directors to hold office until no later than the Annual General Meetin” at PROTHENA CORPORATION PLC, 2024-2025
Asset manager	For	Abstain	Vote
Vanguard	5,415,157	0	For
Fidelity	5,279,983	0	For
T. Rowe Price	2,769,845	0	For
Federated Hermes	533,215	0	For
Charles Schwab	324,799	0	For
State Street	317,491	0	For
Dimensional	251,198	0	For
JPMorgan	170,456	0	For
Equitable	120,084	0	For
Brighthouse	108,493	8,334	For
TIAA	107,954	0	For
BlackRock	98,063	0	For
John Hancock	64,217	0	For
Hartford	64,168	0	For
Lincoln Financial	62,088	0	For
MFS	44,223	0	For
Thrivent	37,634	0	For
American Century	31,632	0	For
Transamerica	30,729	0	For
ProShares	26,868	0	For
Northern Trust	25,091	0	For
Global X	24,643	0	For
Direxion Shares ETF Trust	22,938	0	For
WisdomTree	20,707	0	For
Pacific Life	16,847	0	For

Showing the 25 largest of 55 asset managers. See all 55 in the interactive database.

5. To elect, by separate resolution, three directors to hold office until no later than the Annual General Meeting of the Company's Shareholders in 2028, unless they resign, are removed from office, or are otherwise disqualified from serving as directors of the Company: Lars G. Ekman

DIRECTOR ELECTIONSMajority of the votes cast: yes

Combines 3 wordings of this item as funds reported it.

99% Majority: yes · of votes cast

FOR 99%

FOR: 46,550,069AGAINST: 556,607

PROTHENA CORPORATION PLC’s own tally for this item (“Elect Director: Lars G. Ekman”): 46,550,069 for, 556,607 against, per its Form 8-K filed 2025-05-16 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 53,826,982 outstanding shares: 86% for, 1% against (88% of the company cast a for/against vote).

The 55 asset managers below cast 99.2% of the shares they voted on this item FOR (16,003,881 for, 119,662 against).

FOR 99.2%

FOR: 16,003,881 (99.2%)AGAINST: 119,662 (0.7%)ABSTAIN: 8,334 (0.1%)

Largest asset managers voting on “To elect, by separate resolution, three directors to hold office until no later than the Annual General Meetin” at PROTHENA CORPORATION PLC, 2024-2025
Asset manager	For	Against	Abstain	Vote
Vanguard	5,415,157	0	0	For
Fidelity	5,279,983	0	0	For
T. Rowe Price	2,769,845	0	0	For
Federated Hermes	533,215	0	0	For
Charles Schwab	324,799	0	0	For
State Street	317,491	0	0	For
Dimensional	251,198	0	0	For
JPMorgan	170,456	0	0	For
Equitable	74,804	45,280	0	For
Brighthouse	108,493	0	8,334	For
TIAA	107,954	0	0	For
BlackRock	98,063	0	0	For
John Hancock	64,217	0	0	For
Hartford	64,168	0	0	For
Lincoln Financial	62,088	0	0	For
MFS	0	44,223	0	Against
Thrivent	37,634	0	0	For
American Century	31,632	0	0	For
Transamerica	30,729	0	0	For
ProShares	26,868	0	0	For
Northern Trust	0	25,091	0	Against
Global X	24,643	0	0	For
Direxion Shares ETF Trust	22,938	0	0	For
WisdomTree	20,707	0	0	For
Pacific Life	16,847	0	0	For

Showing the 25 largest of 55 asset managers. See all 55 in the interactive database.

6. To elect, by separate resolution, three directors to hold office until no later than the Annual General Meeting of the Company's Shareholders in 2028, unless they resign, are removed from office, or are otherwise disqualified from serving as directors of the Company: Paula K. Cobb

DIRECTOR ELECTIONSMajority of the votes cast: yes

Combines 3 wordings of this item as funds reported it.

99.6% Majority: yes · of votes cast

FOR 99.6%

FOR: 46,937,071AGAINST: 169,323

PROTHENA CORPORATION PLC’s own tally for this item (“Elect Director: Paula K. Cobb”): 46,937,071 for, 169,323 against, per its Form 8-K filed 2025-05-16 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item. Of all 53,826,982 outstanding shares: 87% for, 0.4% against (88% of the company cast a for/against vote).

The 55 asset managers below cast 99.6% of the shares they voted on this item FOR (16,073,756 for, 49,787 against).

FOR 99.6%

FOR: 16,073,756 (99.6%)AGAINST: 49,787 (0.3%)ABSTAIN: 8,334 (0.1%)

Largest asset managers voting on “To elect, by separate resolution, three directors to hold office until no later than the Annual General Meetin” at PROTHENA CORPORATION PLC, 2024-2025
Asset manager	For	Against	Abstain	Vote
Vanguard	5,415,157	0	0	For
Fidelity	5,279,983	0	0	For
T. Rowe Price	2,769,845	0	0	For
Federated Hermes	533,215	0	0	For
Charles Schwab	324,799	0	0	For
State Street	317,491	0	0	For
Dimensional	251,198	0	0	For
JPMorgan	170,456	0	0	For
Equitable	74,804	45,280	0	For
Brighthouse	108,493	0	8,334	For
TIAA	107,954	0	0	For
BlackRock	98,063	0	0	For
John Hancock	64,217	0	0	For
Hartford	64,168	0	0	For
Lincoln Financial	62,088	0	0	For
MFS	44,223	0	0	For
Thrivent	37,634	0	0	For
American Century	31,632	0	0	For
Transamerica	30,729	0	0	For
ProShares	26,868	0	0	For
Northern Trust	25,091	0	0	For
Global X	24,643	0	0	For
Direxion Shares ETF Trust	22,938	0	0	For
WisdomTree	20,707	0	0	For
Pacific Life	16,847	0	0	For

Showing the 25 largest of 55 asset managers. See all 55 in the interactive database.

Largest PROTHENA CORPORATION PLC shareholders voting in 2024-2025

Ranked by the number of PROTHENA CORPORATION PLC shares each manager voted on the most widely held ballot item of the 2024-2025 meeting, shown as a share of the 53,826,982 shares outstanding at the time of that meeting.

Top PROTHENA CORPORATION PLC shareholders by shares voted, 2024-2025
#	Asset manager	% of shares outstanding
1	Fidelity	24.25%
2	EcoR1 Capital, LLC	15.36%
3	T. Rowe Price	11.99%
4	Vanguard	10.30%
5	Wellington	8.97%
6	BlackRock	3.41%
7	Palo Alto Investors LP	3.23%
8	State Street	2.59%
9	Siren, L.L.C.	2.08%
10	Federated Hermes	2.02%

Reported PROTHENA CORPORATION PLC ownership

Positions disclosed to the SEC on Schedules 13D and 13G, Form 13F and the company’s own proxy statement (DEF 14A).

PROTHENA CORPORATION PLC beneficial owners on record for the 2024-2025 proxy season
Holder	% outstanding	Disclosure
FMR (Fidelity)	14.75%	13F
SCULLY WILLIAM P	9.99%	13G
Wellington Management	9.66%	13F
Rubric Capital Management LP	9.29%	13G
Fennell Todd W.	8.35%	13G
BlackRock	7.51%	13F
T. Rowe Price	6.42%	13F
State Street	2.83%	13F
Vanguard Group	2.36%	13F
Geode Capital	1.89%	13F

Percentages above are of 53,826,982 shares outstanding, as reported by PROTHENA CORPORATION PLC on its Form 10-Q dated 2025-05-01 (see the filing on EDGAR). This is the count contemporaneous with the 2024-2025 meeting, so the percentages are the ones that were true then, not ones restated against today’s share count.

About this page

Every figure above is derived from filings made with the US Securities and Exchange Commission: Form N-PX, in which registered investment companies and institutional managers disclose how they voted every proxy, and Form 8-K Item 5.07, in which the company reports its own meeting results. Shares outstanding are taken from PROTHENA CORPORATION PLC’s 10-Q dated 2025-05-01. This page is a static snapshot rebuilt weekly on 02 October 2026; a live search always shows the current data.

At PROTHENA CORPORATION PLC's shareholder meeting held 2025-05-13, in the 2024-2025 proxy season, 232 asset managers reported how they voted on 6 ballot items in their SEC Form N-PX filings, covering 1,455 separate fund positions. On the most widely held item on that ballot — TO APPROVE, IN A NON-BINDING ADVISORY VOTE, THE COMPENSATION OF THE EXECUTIVE OFFICERS NAMED IN… — FOR was 76% of the votes cast (FOR divided by FOR plus AGAINST, the conventional basis for proxy support; abstentions, broker non-votes and unvoted shares are excluded because none of them took a side), which is more than half. Whether the item was approved is for the filing to say; that statement has not been read for this item. Source: PROTHENA CORPORATION PLC's Form 8-K, Item 5.07, filed with the U.S. Securities and Exchange Commission on 2025-05-16.

PROTHENA CORPORATION PLC proxy season coverage: 2023-2024 · 2024-2025 (this page) · 2025-2026.