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PROTHENA CORPORATION PLC 2023-2024 Proxy Voting Records

Compiled from SEC Form N-PX filings and PROTHENA CORPORATION PLC’s Form 8-K, filed 2024-05-17 (Item 5.07 on EDGAR). Page generated 02 October 2026.

7Ballot items
239Asset managers
1,807Fund votes
2024-05-14Meeting date

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

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

Official 2023-2024 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 2024-05-17 (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 2024-05-14
Ballot item	For	Against	Abstain	Withheld	Broker non-votes	Outcome
Elect Director: Richard T. Collier	42,704,695	4,230,920	15,239	--	2,591,833	Majority: yes
Elect Director: Shane M. Cooke	46,538,265	398,049	14,540	--	2,591,833	Majority: yes
Elect Director: William H. Dunn, Jr.	46,769,850	165,930	15,074	--	2,591,833	Majority: yes
Elect Director: Daniel G. Welch	40,327,963	6,608,319	14,572	--	2,591,833	Majority: yes
Proposal 2: Ratification of Appointment of the Company's Independent Registered Public Accounting Firm for 2024 and Authorization of the Board of Directors to Approve the Remuneration of that Auditor. The shareholders ratified, in a non-binding vote, the appoi	49,433,824	63,084	45,779	--	--	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.	45,331,500	425,331	1,194,023	--	2,591,833	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.	36,884,712	8,876,141	1,190,001	--	2,591,833	Majority: yes

Source: PROTHENA CORPORATION PLC, Form 8-K, filed with the SEC on 2024-05-17 — read the filing on EDGAR.

How asset managers voted at the PROTHENA CORPORATION PLC 2023-2024 meeting

Each item below shows how the 239 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 13 wordings of this item as funds reported it.

99.0% Majority: yes · of votes cast

FOR 99.0%

FOR: 45,331,500AGAINST: 425,331

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”): 45,331,500 for, 425,331 against, per its Form 8-K filed 2024-05-17 (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 53,771,845 outstanding shares: 84% for, 0.8% against (85% of the company cast a for/against vote).

The 238 asset managers below cast 99.6% 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 company's reported shares outstanding.

FOR 99.6%

FOR: 99.7%AGAINST: 0.3%ABSTAIN: 0.0%NOT VOTED: 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, 2023-2024
Asset manager	For	Against	Vote
Fidelity	13,608,372	0	For
EcoR1 Capital, LLC	11,584,280	0	For
T. Rowe Price	7,380,113	0	For
State Street	4,520,009	0	For
Vanguard	3,510,250	0	For
Wellington	3,468,162	0	For
BlackRock	3,362,022	0	For
Janus Henderson	1,745,733	0	For
JANUS INVESTMENT FUND	964,232	0	For
GEODE CAPITAL MANAGEMENT, LLC	876,824	0	For
Dimensional	664,831	0	For
Charles Schwab	641,284	0	For
First Light Asset Management, LLC	445,596	0	For
MUTUAL FUND SERIES TRUST	445,155	0	For
Finepoint Capital LP	402,400	0	For
Northern Trust	372,015	36	For
JPMorgan	345,948	0	For
Nuveen	242,406	0	For
Granahan Investment Management, LLC	225,731	0	For
Rock Springs Capital Management LP	224,932	0	For
Hartford	207,651	0	For
TIAA	191,631	0	For
UBS	153,431	26,970	For
MELLON INVESTMENTS Corp	161,629	0	For
Equitable	121,434	0	For

Showing the 25 largest of 238 asset managers. See all 238 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 5 wordings of this item as funds reported it.

81% Majority: yes · of votes cast

FOR 81%AGAINST 19%

FOR: 36,884,712AGAINST: 8,876,141

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,”): 36,884,712 for, 8,876,141 against, per its Form 8-K filed 2024-05-17 (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 53,771,845 outstanding shares: 69% for, 17% against (85% of the company cast a for/against vote).

The 72 asset managers below cast 78% of the shares they voted on this item FOR (16,021,526 for, 4,537,528 against).

FOR 78%AGAINST 22%

FOR: 16,021,526 (77.9%)AGAINST: 4,537,528 (22.1%)ABSTAIN: 8,334 (0.0%)

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, 2023-2024
Asset manager	For	Against	Abstain	Vote
Fidelity	5,641,433	0	0	For
Vanguard	3,390,289	0	0	For
T. Rowe Price	3,289,961	0	0	For
State Street	0	1,868,461	0	Against
BlackRock	1,863,545	0	0	For
JANUS INVESTMENT FUND	0	964,232	0	Against
Dimensional	0	566,604	0	Against
First Light Asset Management, LLC	445,596	0	0	For
MUTUAL FUND SERIES TRUST	445,155	0	0	For
Charles Schwab	0	320,639	0	Against
Hartford	207,651	0	0	For
TIAA	191,631	0	0	For
Equitable	76,154	45,280	0	For
JPMorgan	0	116,236	0	Against
Brighthouse	49,178	39,096	8,334	For
John Hancock	66,641	16,275	0	For
QUANTITATIVE MASTER SERIES LLC	74,339	0	0	For
Direxion Shares ETF Trust	0	62,291	0	Against
Victory Capital	474	55,987	0	Against
Transamerica	35,512	19,750	0	For
Northwestern Mutual	53,522	0	0	For
Jackson National	0	51,793	0	Against
AIG/SunAmerica	0	50,559	0	Against
Nushares ETF Trust	49,353	0	0	For
Thrivent	0	47,685	0	Against

Showing the 25 largest of 72 asset managers. See all 72 in the interactive database.

3. To elect, by separate resolutions, four directors to hold office until no later than the Annual General Meeting of the Company's Shareholders in 2027, unless they resign, are removed from office, or are otherwise disqualified from serving as directors of the Company: Richard T. Collier

DIRECTOR ELECTIONSMajority of the votes cast: yes

Combines 4 wordings of this item as funds reported it.

91% Majority: yes · of votes cast

FOR 91%9%

FOR: 42,704,695AGAINST: 4,230,920

PROTHENA CORPORATION PLC’s own tally for this item (“Elect Director: Richard T. Collier”): 42,704,695 for, 4,230,920 against, per its Form 8-K filed 2024-05-17 (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 53,771,845 outstanding shares: 79% for, 8% against (87% of the company cast a for/against vote).

The 69 asset managers below cast 90% of the shares they voted on this item FOR (18,049,194 for, 2,062,047 against).

FOR 90%10%

FOR: 18,049,194 (89.7%)AGAINST: 2,062,047 (10.2%)ABSTAIN: 8,334 (0.0%)

Largest asset managers voting on “To elect, by separate resolutions, four directors to hold office until no later than the Annual General Meetin” at PROTHENA CORPORATION PLC, 2023-2024
Asset manager	For	Against	Abstain	Vote
Fidelity	5,641,433	0	0	For
Vanguard	3,390,289	0	0	For
T. Rowe Price	3,289,961	0	0	For
State Street	0	1,868,461	0	Against
BlackRock	1,863,545	0	0	For
JANUS INVESTMENT FUND	964,232	0	0	For
Dimensional	566,604	0	0	For
MUTUAL FUND SERIES TRUST	445,155	0	0	For
Charles Schwab	320,639	0	0	For
Hartford	207,651	0	0	For
TIAA	191,631	0	0	For
Equitable	76,154	45,280	0	For
JPMorgan	116,236	0	0	For
Brighthouse	88,274	0	8,334	For
John Hancock	82,916	0	0	For
QUANTITATIVE MASTER SERIES LLC	74,339	0	0	For
Direxion Shares ETF Trust	62,291	0	0	For
Victory Capital	56,461	0	0	For
Transamerica	35,512	19,750	0	For
Northwestern Mutual	53,522	0	0	For
Jackson National	51,793	0	0	For
AIG/SunAmerica	50,559	0	0	For
Nushares ETF Trust	49,353	0	0	For
Thrivent	47,685	0	0	For
Lincoln Financial	11,925	35,000	0	Against

Showing the 25 largest of 69 asset managers. See all 69 in the interactive database.

4. To elect, by separate resolutions, four directors to hold office until no later than the Annual General Meeting of the Company's Shareholders in 2027, unless they resign, are removed from office, or are otherwise disqualified from serving as directors of the Company: Shane M. Cooke

DIRECTOR ELECTIONSMajority of the votes cast: yes

Combines 4 wordings of this item as funds reported it.

99.1% Majority: yes · of votes cast

FOR 99.1%

FOR: 46,538,265AGAINST: 398,049

PROTHENA CORPORATION PLC’s own tally for this item (“Elect Director: Shane M. Cooke”): 46,538,265 for, 398,049 against, per its Form 8-K filed 2024-05-17 (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 53,771,845 outstanding shares: 87% for, 0.8% against (87% of the company cast a for/against vote).

The 69 asset managers below cast 99.9% of the shares they voted on this item FOR (20,110,541 for, 700 against).

FOR 99.9%

FOR: 20,110,541 (100.0%)AGAINST: 700 (0.0%)ABSTAIN: 8,334 (0.0%)

Largest asset managers voting on “To elect, by separate resolutions, four directors to hold office until no later than the Annual General Meetin” at PROTHENA CORPORATION PLC, 2023-2024
Asset manager	For	Abstain	Vote
Fidelity	5,641,433	0	For
Vanguard	3,390,289	0	For
T. Rowe Price	3,289,961	0	For
State Street	1,868,461	0	For
BlackRock	1,863,545	0	For
JANUS INVESTMENT FUND	964,232	0	For
Dimensional	566,604	0	For
MUTUAL FUND SERIES TRUST	445,155	0	For
Charles Schwab	320,639	0	For
Hartford	207,651	0	For
TIAA	191,631	0	For
Equitable	121,434	0	For
JPMorgan	116,236	0	For
Brighthouse	88,274	8,334	For
John Hancock	82,916	0	For
QUANTITATIVE MASTER SERIES LLC	74,339	0	For
Direxion Shares ETF Trust	62,291	0	For
Victory Capital	56,461	0	For
Transamerica	55,262	0	For
Northwestern Mutual	53,522	0	For
Jackson National	51,793	0	For
AIG/SunAmerica	50,559	0	For
Nushares ETF Trust	49,353	0	For
Thrivent	47,685	0	For
Lincoln Financial	46,925	0	For

Showing the 25 largest of 69 asset managers. See all 69 in the interactive database.

5. To elect, by separate resolutions, four directors to hold office until no later than the Annual General Meeting of the Company's Shareholders in 2027, unless they resign, are removed from office, or are otherwise disqualified from serving as directors of the Company: William H. Dunn, Jr.

DIRECTOR ELECTIONSMajority of the votes cast: yes

Combines 4 wordings of this item as funds reported it.

99.6% Majority: yes · of votes cast

FOR 99.6%

FOR: 46,769,850AGAINST: 165,930

PROTHENA CORPORATION PLC’s own tally for this item (“Elect Director: William H. Dunn, Jr.”): 46,769,850 for, 165,930 against, per its Form 8-K filed 2024-05-17 (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 53,771,845 outstanding shares: 87% for, 0.4% against (87% of the company cast a for/against vote).

The 69 asset managers below cast 100% of the shares they voted on this item FOR (20,111,241 for, 0 against).

FOR 99.9%

FOR: 20,111,241 (100.0%)ABSTAIN: 8,334 (0.0%)

Largest asset managers voting on “To elect, by separate resolutions, four directors to hold office until no later than the Annual General Meetin” at PROTHENA CORPORATION PLC, 2023-2024
Asset manager	For	Abstain	Vote
Fidelity	5,641,433	0	For
Vanguard	3,390,289	0	For
T. Rowe Price	3,289,961	0	For
State Street	1,868,461	0	For
BlackRock	1,863,545	0	For
JANUS INVESTMENT FUND	964,232	0	For
Dimensional	566,604	0	For
MUTUAL FUND SERIES TRUST	445,155	0	For
Charles Schwab	320,639	0	For
Hartford	207,651	0	For
TIAA	191,631	0	For
Equitable	121,434	0	For
JPMorgan	116,236	0	For
Brighthouse	88,274	8,334	For
John Hancock	82,916	0	For
QUANTITATIVE MASTER SERIES LLC	74,339	0	For
Direxion Shares ETF Trust	62,291	0	For
Victory Capital	56,461	0	For
Transamerica	55,262	0	For
Northwestern Mutual	53,522	0	For
Jackson National	51,793	0	For
AIG/SunAmerica	50,559	0	For
Nushares ETF Trust	49,353	0	For
Thrivent	47,685	0	For
Lincoln Financial	46,925	0	For

Showing the 25 largest of 69 asset managers. See all 69 in the interactive database.

6. To elect, by separate resolutions, four directors to hold office until no later than the Annual General Meeting of the Company's Shareholders in 2027, unless they resign, are removed from office, or are otherwise disqualified from serving as directors of the Company: Daniel G. Welch

DIRECTOR ELECTIONSMajority of the votes cast: yes

Combines 4 wordings of this item as funds reported it.

86% Majority: yes · of votes cast

FOR 86%AGAINST 14%

FOR: 40,327,963AGAINST: 6,608,319

PROTHENA CORPORATION PLC’s own tally for this item (“Elect Director: Daniel G. Welch”): 40,327,963 for, 6,608,319 against, per its Form 8-K filed 2024-05-17 (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 53,771,845 outstanding shares: 75% for, 12% against (87% of the company cast a for/against vote).

The 69 asset managers below cast 77% of the shares they voted on this item FOR (15,462,138 for, 4,649,103 against).

FOR 77%AGAINST 23%

FOR: 15,462,138 (76.9%)AGAINST: 4,649,103 (23.1%)ABSTAIN: 8,334 (0.0%)

Largest asset managers voting on “To elect, by separate resolutions, four directors to hold office until no later than the Annual General Meetin” at PROTHENA CORPORATION PLC, 2023-2024
Asset manager	For	Against	Abstain	Vote
Fidelity	5,641,433	0	0	For
Vanguard	996,026	2,394,263	0	Against
T. Rowe Price	3,289,961	0	0	For
State Street	0	1,868,461	0	Against
BlackRock	1,863,545	0	0	For
JANUS INVESTMENT FUND	964,232	0	0	For
Dimensional	566,604	0	0	For
MUTUAL FUND SERIES TRUST	445,155	0	0	For
Charles Schwab	320,639	0	0	For
Hartford	0	207,651	0	Against
TIAA	191,631	0	0	For
Equitable	121,434	0	0	For
JPMorgan	116,236	0	0	For
Brighthouse	88,274	0	8,334	For
John Hancock	46,009	36,907	0	For
QUANTITATIVE MASTER SERIES LLC	74,339	0	0	For
Direxion Shares ETF Trust	62,291	0	0	For
Victory Capital	55,987	474	0	For
Transamerica	55,262	0	0	For
Northwestern Mutual	0	53,522	0	Against
Jackson National	51,793	0	0	For
AIG/SunAmerica	50,559	0	0	For
Nushares ETF Trust	49,353	0	0	For
Thrivent	47,685	0	0	For
Lincoln Financial	11,925	35,000	0	Against

Showing the 25 largest of 69 asset managers. See all 69 in the interactive database.

7. To ratify, in a non-binding vote, the appointment of KPMG LLP as the Company's independent registered public accounting firm for its fiscal year 2024 and to authorize, in a binding vote, the Company's Board of Directors, acting through its Audit Committee, to approve the remuneration of that auditor.

AUDIT-RELATEDMajority of the votes cast: yes

Combines 3 wordings of this item as funds reported it.

99.8% Majority: yes · of votes cast

FOR 99.8%

FOR: 49,433,824AGAINST: 63,084

PROTHENA CORPORATION PLC’s own tally for this item (“Proposal 2: Ratification of Appointment of the Company's Independent Registered Public Accounting Firm for 2024 and Authorization of the Board of Directors to Approve the Remuneration of that Auditor. The shareholders ra”): 49,433,824 for, 63,084 against, per its Form 8-K filed 2024-05-17 (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 53,771,845 outstanding shares: 92% for, 0.2% against (92% of the company cast a for/against vote).

The 69 asset managers below cast 100% of the shares they voted on this item FOR (20,111,241 for, 0 against).

FOR 99.9%

FOR: 20,111,241 (100.0%)ABSTAIN: 8,334 (0.0%)

Largest asset managers voting on “To ratify, in a non-binding vote, the appointment of KPMG LLP as the Company's independent registered public a” at PROTHENA CORPORATION PLC, 2023-2024
Asset manager	For	Abstain	Vote
Fidelity	5,641,433	0	For
Vanguard	3,390,289	0	For
T. Rowe Price	3,289,961	0	For
State Street	1,868,461	0	For
BlackRock	1,863,545	0	For
JANUS INVESTMENT FUND	964,232	0	For
Dimensional	566,604	0	For
MUTUAL FUND SERIES TRUST	445,155	0	For
Charles Schwab	320,639	0	For
Hartford	207,651	0	For
TIAA	191,631	0	For
Equitable	121,434	0	For
JPMorgan	116,236	0	For
Brighthouse	88,274	8,334	For
John Hancock	82,916	0	For
QUANTITATIVE MASTER SERIES LLC	74,339	0	For
Direxion Shares ETF Trust	62,291	0	For
Victory Capital	56,461	0	For
Transamerica	55,262	0	For
Northwestern Mutual	53,522	0	For
Jackson National	51,793	0	For
AIG/SunAmerica	50,559	0	For
Nushares ETF Trust	49,353	0	For
Thrivent	47,685	0	For
Lincoln Financial	46,925	0	For

Showing the 25 largest of 69 asset managers. See all 69 in the interactive database.

Largest PROTHENA CORPORATION PLC shareholders voting in 2023-2024

Ranked by the number of PROTHENA CORPORATION PLC shares each manager voted on the most widely held ballot item of the 2023-2024 meeting, shown as a share of the 53,771,845 shares outstanding at the time of that meeting.

Top PROTHENA CORPORATION PLC shareholders by shares voted, 2023-2024
#	Asset manager	% of shares outstanding
1	Fidelity	25.31%
2	EcoR1 Capital, LLC	21.54%
3	T. Rowe Price	13.72%
4	State Street	8.41%
5	Vanguard	6.53%
6	Wellington	6.45%
7	BlackRock	6.25%
8	Janus Henderson	3.25%
9	JANUS INVESTMENT FUND	1.79%
10	GEODE CAPITAL MANAGEMENT, LLC	1.63%

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 2023-2024 proxy season
Holder	% outstanding	Disclosure
Entities Associated with EcoR1 Capital, LLC	21.54%	DEF14A
Entities Associated with Fidelity Investments	14.97%	DEF14A
FMR (Fidelity)	14.69%	13F
T. Rowe Price	7.81%	13F
Wellington Management	6.98%	13F
BlackRock	6.69%	13F
William P. Scully	6.51%	DEF14A
State Street	6.46%	13F
Todd W. Fennell	5.84%	DEF14A
Vanguard Group	3.81%	13F

Percentages above are of 53,771,845 shares outstanding, as reported by PROTHENA CORPORATION PLC on its Form 10-Q dated 2024-05-01 (see the filing on EDGAR). This is the count contemporaneous with the 2023-2024 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 2024-05-01. 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 2024-05-14, in the 2023-2024 proxy season, 239 asset managers reported how they voted on 7 ballot items in their SEC Form N-PX filings, covering 1,807 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 99.0% 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 2024-05-17.

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