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Prothena Corp Public Ltd Co

PRTA
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001559053

In the last 90 days, Prothena Corp Public Ltd Co insiders filed 6 open-market purchases and 2 sales; 187 institutions reported holding it in 13F filings for Q2 2026, worth $462.7M in total; no superinvestor holds it.

Q2 2024 vs. Q1 2024

How the institutions holding Prothena Corp Public Ltd Co changed between Q1 2024 and Q2 2024.

All holders in Q2 2024All holders in Q1 2024

13F holders of PRTA: Q1 2024 compared with Q2 2024
MeasureQ1 2024Of which not filed for Q2 2024Q2 2024Change
Holders1692160−7
Shares53.5M63.9K50.8M−2.61M (−4.9%)
Value$1.33B$1.58M$1.05B−$275.2M (−20.8%)

2 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so the changes leave them out.

New holders (27)

Institutions that held Prothena Corp Public Ltd Co at the end of Q2 2024 but not at the end of Q1 2024.

Institutions new to PRTA in Q2 2024
InstitutionSharesValue% of portfolio
PDT Partners, LLC102,708$2.12M0.20%
Two Sigma Investments, LP71,559$1.48M0.00%
ExodusPoint Capital Management, LP47,107$972.0K0.01%
Federated Hermes, Inc.43,861$905.3K0.00%
Cresset Asset Management, LLC28,298$584.1K0.00%
Tudor Investment Corp Et Al26,795$553.0K0.01%
Mirae Asset Global ETFs Holdings Ltd.24,804$511.6K0.00%
HRT Financial LP23,422$483.0K0.00%
Corebridge Financial, Inc.22,876$472.2K0.00%
Brevan Howard Capital Management LP21,821$450.4K0.03%
Y-Intercept (Hong Kong) Ltd21,351$440.7K0.02%
Fox Run Management, L.L.C.18,591$383.7K0.07%
Verition Fund Management LLC15,757$325.2K0.00%
Amundi15,899$319.1K0.00%
NEOS Investment Management LLC10,511$216.9K0.01%
Catalyst Funds Management Pty Ltd5,100$105.3K0.03%
Smartleaf Asset Management LLC400$8.21K0.00%
Manchester Capital Management LLC250$5.16K0.00%
Ronald Blue Trust, Inc.170$4.21K0.00%
Mather Group, LLC.100$2.48K0.00%
Versant Capital Management, Inc54$1.11K0.00%
Massmutual Trust Co FSB27$5570.00%
Cornerstone Planning Group LLC27$5350.00%
Key Financial Inc12$2480.00%
Global Retirement Partners, LLC7$1440.00%
Clearstead Advisors, LLC4$830.00%
Cypress Capital, LLC2$410.00%

Sold out (34)

Institutions that held Prothena Corp Public Ltd Co at the end of Q1 2024 and filed for Q2 2024 without it.

Institutions that sold out of PRTA in Q2 2024
InstitutionShares, Q1 2024Value, Q1 2024
First Light Asset Management, LLC444,953$11.0M
Qube Research & Technologies Ltd195,446$4.84M
Cubist Systematic Strategies, LLC135,321$3.35M
Pier Capital, LLC57,020$1.41M
Platinum Investment Management Ltd41,508$1.03M
Seven Eight Capital, LP41,120$1.02M
Fred Alger Management, LLC32,996$817.3K
Bank of Montreal24,880$622.2K
American International Group, Inc.20,795$515.1K
New York Life Investment Management LLC14,407$356.9K
E Fund Management Co., Ltd.14,340$355.2K
Susquehanna Fundamental Investments, LLC13,818$342.3K
Axq Capital, LP13,416$332.3K
Principal Financial Group Inc11,737$290.7K
ProShare Advisors LLC11,346$281.0K
GTS Securities LLC10,944$271.1K
Aigen Investment Management, LP9,901$245.2K
Atom Investors LP9,303$230.4K
Teacher Retirement System of Texas8,956$222.0K
Point72 (DIFC) Ltd8,918$220.9K
Two Sigma Advisers, LP8,300$205.6K
Creative Planning8,260$204.6K
Metropolitan Life Insurance Co2,317$57.4K
KBC Group NV1,581$39.0K
Quantbot Technologies LP1,300$32.2K
Aquatic Capital Management LLC1,200$29.7K
Riverview Trust Co659$16.3K
Huntington National Bank198$4.90K
Truvestments Capital LLC108$2.67K
Caldwell Trust Co51$1.26K
GWM Advisors LLC17$420
Nelson, Van Denburg & Campbell Wealth Management Group, LLC9$222
First Manhattan Co3$74
JFS Wealth Advisors, LLC2$50

Not filed for Q2 2024 yet (2)

Institutions that held Prothena Corp Public Ltd Co at the end of Q1 2024 and haven't filed a 13F for Q2 2024. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding PRTA in Q1 2024 that haven't filed for Q2 2024
InstitutionShares, Q1 2024Value, Q1 2024
Credit Suisse AG60,202$1.49M
Cutler Group LP3,700$91.0K