13F

Stock

Prothena Corp Plc

Ticker not mapped · held by 181 managers

Reported value

$435.5M

Holders

181

+1 new · −1 exited

Holders’ est. mark

−$253.1K

Price effect on 8 books still in the name

Largest holder

$72.1M

Fidelity

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Fidelity7.55M$72.1MHeld
BlackRock, Inc.4.11M$39.2MHeld
Rubric Capital Management LP3.68M$35.1MHeld
State Street2.27M$21.7MHeld
Vanguard2.14M$20.4MHeld
D. E. Shaw & Co., Inc.1.68M$16.1MHeld
ARMISTICE CAPITAL, LLC1.5M$14.3MHeld
ADAR1 Capital Management, LLC1.46M$13.9MHeld
Palo Alto Investors LP1.32M$12.6MHeld
MORGAN STANLEY1.25M$11.9M−$167.9KAdded$4.1M
GEODE CAPITAL MANAGEMENT, LLC1.06M$10.2MHeld
JACOBS LEVY EQUITY MANAGEMENT, INC978K$9.34MHeld
FEDERATED HERMES, INC.974.4K$9.31MHeld
GOLDMAN SACHS GROUP INC935.3K$8.93MHeld
Citadel912.4K$8.71MHeld
Point72 Asset Management, L.P.860K$8.21MHeld
DIMENSIONAL FUND ADVISORS LP775.2K$7.4MHeld
Nuveen, LLC759.1K$7.25MHeld
TWO SIGMA INVESTMENTS, LP670.1K$6.4MHeld
Mariner, LLC577.9K$5.52MHeld
Rangeley Capital, LLC524.6K$5.01MHeld
Birchview Capital, LP441K$4.21MHeld
Renaissance Technologies435.5K$4.16MHeld
JANE STREET GROUP, LLC428.7K$4.09MHeld
TWO SIGMA ADVISERS, LP427.4K$4.08MHeld
BANK OF AMERICA CORP /DE/427.4K$4.08M−$58.2KAdded$1.38M
UBS Group AG426.4K$4.07MHeld
BNP PARIBAS FINANCIAL MARKETS424K$4.05MHeld
Qube Research & Technologies Ltd407.7K$3.89MHeld
NORTHERN TRUST CORP363.2K$3.47MHeld
CHARLES SCHWAB INVESTMENT MANAGEMENT INC357.3K$3.41MHeld
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP298.1K$2.85MHeld
Man Group plc269.5K$2.57MHeld
MONIMUS CAPITAL MANAGEMENT, LP254.1K$2.43MHeld
Jump Financial, LLC237.8K$2.27MHeld
Squarepoint Ops LLC218K$2.08MHeld
DCF Advisers, LLC195.7K$1.87MHeld
Icahn Capital186.8K$1.78MHeld
BARCLAYS PLC183.6K$1.75M−$20.6KAdded$796.4K
JPMORGAN CHASE & CO170K$1.62MHeld
Walleye Capital LLC156K$1.49MHeld
Bank of New York Mellon Corp132.7K$1.27MHeld
Connor, Clark & Lunn Investment Management Ltd.125.9K$1.2MHeld
Focused Wealth Management, Inc107.5K$1.03MHeld
DIADEMA PARTNERS LP106.5K$1.02MHeld
AMERIPRISE FINANCIAL INC105.4K$1.01MHeld
LOS ANGELES CAPITAL MANAGEMENT LLC95.4K$999.9KHeld
Quantinno Capital Management LP103.6K$989.6KHeld
Y-Intercept (Hong Kong) Ltd100.5K$959.9KHeld
Russell Investments Group, Ltd.99.3K$948.8KHeld
Campbell & CO Investment Adviser LLC94.2K$899.2KHeld
Hennion & Walsh Asset Management, Inc.91.3K$871.8KHeld
ExodusPoint Capital Management, LP88K$840.3KHeld
Rafferty Asset Management, LLC82.6K$788.4KHeld
AMERICAN CENTURY COMPANIES INC78.8K$752.6KHeld
Assenagon Asset Management S.A.76.8K$733.1KHeld
ALLIANCEBERNSTEIN L.P.69.6K$664.7KHeld
Duncan Williams Asset Management, LLC70.3K$624.8KHeld
MARTINGALE ASSET MANAGEMENT L P63.5K$606KHeld
PINNACLE ASSOCIATES LTD62.7K$599KHeld
Creative Planning62K$591.8KHeld
Caption Management, LLC61K$582.6KHeld
WELLS FARGO & COMPANY/MN60.1K$574KHeld
Susquehanna Portfolio Strategies, LLC58.9K$562KHeld
RHUMBLINE ADVISERS56.5K$539.8KHeld
XTX Topco Ltd54.9K$524.1KHeld
MARSHALL WACE, LLP54.8K$523.1KHeld
Quinn Opportunity Partners LLC50K$477.5KHeld
FRANKLIN RESOURCES INC47.3K$451.2KHeld
MASSACHUSETTS FINANCIAL SERVICES CO /MA/46K$439KHeld
Seven Fleet Capital Management LP43.3K$413.5KHeld
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO42.2K$402.6KHeld
DEUTSCHE BANK AG\35.5K$338.9KHeld
Quadrature Capital Ltd31.1K$296.9KHeld
PROFUND ADVISORS LLC30.6K$292.4KHeld
RBF Capital, LLC29.2K$278.9KHeld
Persistent Asset Partners Ltd28.6K$273KNew
PNC Financial Services Group, Inc.28.1K$268.6KHeld
Graham Capital Management, L.P.27.8K$265.1KHeld
HSBC HOLDINGS PLC27.7K$260.7KHeld
Invesco Ltd.26.6K$254.1KHeld
TUDOR INVESTMENT CORP ET AL26.5K$252.8K−$5.56KCut−$11.4K
Virtus Investment Advisers, LLC25.7K$245.2KHeld
MetLife Investment Management, LLC25.5K$243.5KHeld
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.25.2K$239.9KHeld
Purkiss Capital Advisors LLC25.1K$239.6KHeld
EDGEWOOD MANAGEMENT LLC24.1K$229.8KHeld
Polymer Capital Management (US) LLC23.5K$224.5KHeld
Headlands Technologies LLC23.4K$223KHeld
MILLENNIUM MANAGEMENT LLC22K$209.9KHeld
MOGY JOEL R INVESTMENT COUNSEL INC20.8K$198.2KHeld
INTECH INVESTMENT MANAGEMENT LLC20.6K$196.7KHeld
Trexquant Investment LP19.4K$185.1KHeld
Ballentine Partners, LLC18.1K$172.6KHeld
STRS OHIO17.6K$168.1KHeld
Atom Investors LP17K$162.6KHeld
Entropy Technologies, LP16.9K$161.4KHeld
RAYMOND JAMES FINANCIAL INC16.5K$157.4KHeld
SUSQUEHANNA INTERNATIONAL GROUP, LLP16K$152.6KHeld
Chicago Partners Investment Group LLC15.2K$152.2KHeld
JONES FINANCIAL COMPANIES LLLP15.9K$151.8KHeld
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM15.4K$146.9KHeld
MANUFACTURERS LIFE INSURANCE COMPANY, THE13.7K$130.8KHeld
GREAT LAKES ADVISORS, LLC13.2K$126KHeld
CARY STREET PARTNERS FINANCIAL LLC12.5K$119.4KHeld
Police & Firemen's Retirement System of New Jersey12.5K$118.9KHeld
CITIGROUP INC12.3K$117.6KHeld
Brooklyn Investment Group12K$114.2KHeld
DRW Securities, LLC12K$114.2KHeld
PDT Partners, LLC11.3K$108.2KHeld
Inscription Capital, LLC10.7K$101.7KHeld
ProShare Advisors LLC10.4K$99.6KHeld
FOX RUN MANAGEMENT, L.L.C.10K$95.9KHeld
NEW YORK STATE COMMON RETIREMENT FUND8.98K$85.7KHeld
China Universal Asset Management Co., Ltd.8.77K$83.8KHeld
CANADA PENSION PLAN INVESTMENT BOARD7.1K$67.8KHeld
Pinnacle Wealth Planning Services, Inc.5.67K$54.1KHeld
BROWN BROTHERS HARRIMAN & CO5K$47.8KHeld
Rockefeller Capital Management L.P.4.59K$43.8KHeld
ROYAL BANK OF CANADA4.43K$42KHeld
Legal & General Group Plc4.04K$38.6KHeld
SIGNATUREFD, LLC3.61K$34.5KHeld
Ameritas Investment Partners, Inc.3.43K$32.7KHeld
Tower Research Capital LLC (TRC)2.83K$27KHeld
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2.71K$25.9KHeld
Mirae Asset Global Investments Co., Ltd.2.62K$25KHeld
Farther Finance Advisors, LLC2.43K$23.2KHeld
Sterling Capital Management LLC2.33K$22.2KHeld
Versant Capital Management, Inc2.04K$19.5KHeld
SIMPLEX TRADING, LLC1.93K$18.4KHeld
FLAGSHIP WEALTH ADVISORS, LLC1.5K$14.3KHeld
ACADIAN ASSET MANAGEMENT LLC1.44M$13.7KHeld
QUADRANT CAPITAL GROUP LLC1.26K$12KHeld
GF FUND MANAGEMENT CO. LTD.1.06K$10.1KHeld
Federation des caisses Desjardins du Quebec1K$9.55KHeld
HighMark Wealth Management LLC900$8.6KHeld
Allworth Financial LP885$8.45K−$182Added$9
Torren Management, LLC884$8.44KHeld
HM PAYSON & CO600$5.73KHeld
GAMMA Investing LLC510$4.87KHeld
US BANCORP \DE\359$3.43KHeld
Essential Partners LLC333$3.18K−$70Cut−$70
Optiver Holding B.V.296$2.83KHeld
OSAIC HOLDINGS, INC.237$2.26KHeld
Evelyn Partners Investment Management LLP199$1.9K−$563Cut−$563
Asset Dedication, LLC184$1.76KHeld
Parallel Advisors, LLC179$1.71KHeld
SITTNER & NELSON, LLC185$1.65KHeld
Johnson Financial Group, Inc.151$1.44KHeld
ALBION FINANCIAL GROUP /UT125$1.19KHeld
NISA INVESTMENT ADVISORS, LLC112$1.07KHeld
True Wealth Design, LLC103$984Held
Gould Capital, LLC100$955Held
HARBOR INVESTMENT ADVISORY, LLC100$955Held
EverSource Wealth Advisors, LLC90$860Held
PRICE T ROWE ASSOCIATES INC /MD/81.5K$779Held
Zurcher Kantonalbank (Zurich Cantonalbank)71$678Held
SG Americas Securities, LLC63K$602Held
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO54$516Held
CIBC Private Wealth Group LLC48$458Held
DekaBank Deutsche Girozentrale14K$383Held
Blue Trust, Inc.33$315Held
GSA CAPITAL PARTNERS LLP26.4K$252Held
Larson Financial Group LLC26$248Held
Caitong International Asset Management Co., Ltd23$220Held
CoreCap Advisors, LLC23$220Held
Covestor Ltd21.8K$208Held
SBI Securities Co., Ltd.15$143Held
IFP Advisors, Inc15$143−$3Cut−$3
Arax Advisory Partners13$124Held
Key Financial Inc12$115Held
Clearstead Advisors, LLC10$96Held
MAI Capital Management10$96Held
CWM, LLC10.1K$96Held
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO6.55K$63Held
Steward Partners Investment Advisory, LLC6$57Held
AMALGAMATED BANK1.38K$13Held
HARBOUR INVESTMENTS, INC.1$10Held
New Millennium Group LLC1$10Held
Daiwa Securities Group Inc.195$2Held
RESOURCES MANAGEMENT CORP /CT/ /ADV3$0Held

Who left

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.