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Disclosery

PRTA PROTHENA CORP PLC

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Stock (common), issuer CIK 1559053

169 managers (172 13F filers) reported a position in PRTA shares at 2024-12-31, 53,520,416 shares in all. 23 filers opened a position and 28 filers sold out during the quarter.

Managers
169
13F filers
172
New
23
Added
64
Reduced
39
Sold out
28
Shares held by filers
53,520,416

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
SCULLY WILLIAM P10% owner2026-10-08+90,000 P$8.5656Form 4
SCULLY WILLIAM P10% owner2026-10-07+125,000 P$8.4012Form 4
SCULLY WILLIAM P10% owner2026-10-02+100,000 P$8.5724Form 4

13F holders, Q4 2024

Filers in the available 13F reports with a share position at 2024-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
EcoR1 Capital, LLC11,584,280$160M6.41%013F-HRTimeline
FMR LLCin group FMR LLC8,071,309$112M0.01%+4,32613F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…5,130,876$71.1M0.01%+952,08813F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.4,122,376$57.1M<0.01%+93,98913F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/3,685,708$51M0.01%-136,72613F-HRTimeline
ARMISTICE CAPITAL, LLC2,236,000$31M0.72%+586,00013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,861,641$25.8M<0.01%+186,73213F-HRTimelineGroup
Palo Alto Investors LP1,737,964$24.1M3.73%013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC1,403,838$19.4M<0.01%+144,73713F-HRTimelineGroup
Siren, L.L.C.in group Siren, L.L.C.1,099,840$15.2M0.67%013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC964,308$13.4M<0.01%+82913F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP864,833$12M<0.01%+10,78313F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding752,795$10.4M+163,541Timeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.746,177$10.3M0.02%+341,27413F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY719,490$9.96M<0.01%+20313F-HR/ATimelineGroup
Boxer Capital Management, LLCin group Boxer Capital Management, LLC690,000$9.56M0.81%13F-HRTimelineGroup
Finepoint Capital LP657,071$9.1M1.05%+223,60013F-HRTimeline
Rock Springs Capital Management LP644,601$8.93M0.34%+19,55313F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC556,526$7.71M<0.01%+141,23713F-HRTimelineGroup
Prosight Management, LP418,122$5.79M1.62%-65,34513F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP404,496$5.6M<0.01%+31,84113F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO387,350$5.36M<0.01%+187,36413F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC343,917$4.76M0.01%+20,70413F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co327,151$4.53M<0.01%+2,18913F-HRTimelineGroup
Birchview Capital, LP304,574$4.22M3.43%+95,00013F-HR/ATimeline
RENAISSANCE TECHNOLOGIES LLC201,900$2.8M<0.01%+19,10013F-HRTimeline
Nuveen Asset Management, LLCin group TIAA152,107$2.11M<0.01%+38113F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp150,238$2.08M<0.01%+19,45213F-HRTimelineGroup
PDT Partners, LLC127,203$1.76M0.16%+16,54913F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC123,005$1.7M<0.01%+10,46713F-HRTimelineGroup
AXA S.A.in group AXA S.A.120,630$1.67M0.01%-12513F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/119,007$1.65M<0.01%+36,94413F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding105,946$1.47M+58,513Timeline
BARCLAYS PLCin group BARCLAYS PLC105,338$1.46M<0.01%+10,11613F-HR/ATimelineGroup
DCF Advisers, LLC103,500$1.43M0.72%-4,00013F-HRTimeline
PINNACLE ASSOCIATES LTD103,081$1.43M0.02%-22,66613F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS97,383$1.35M<0.01%+41,54113F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\95,970$1.33M<0.01%+63,51213F-HR/ATimelineGroup
Connor, Clark & Lunn Investment Managem…91,840$1.27M0.01%-30,65213F-HRTimeline
Rafferty Asset Management, LLC77,672$1.08M<0.01%+15,44213F-HRTimeline
Man Group plcin group Man Group plc77,430$1.07M<0.01%+36,82413F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …70,184$972K<0.01%-15,88713F-HRTimelineGroup
Duncan Williams Asset Management, LLC69,199$958K0.38%+20,45013F-HRTimeline
Swiss National Bank68,700$951K<0.01%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC68,433$948K<0.01%+36,35913F-HRTimelineGroup
RHUMBLINE ADVISERS67,115$930K<0.01%+1,17513F-HR/ATimeline
TD Asset Management Inc64,694$896K<0.01%-36,00013F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC62,002$859K0.03%new13F-HRTimeline
NORGES BANK57,454$796K<0.01%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC55,528$769K<0.01%-39,91613F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN52,823$732K<0.01%-13,37613F-HRTimelineGroup
Hennion & Walsh Asset Management, Inc.52,284$724K0.03%new13F-HRTimeline
ALLIANCEBERNSTEIN L.P.46,753$648K<0.01%+713F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…44,815$621K<0.01%new13F-HRTimelineGroup
ALPS ADVISORS INCin group ALPS ADVISORS INC43,510$603K<0.01%+1,88313F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.42,846$593K<0.01%+1,63213F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC41,518$575K<0.01%-196,16513F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc41,405$573K<0.01%+1,18113F-HRTimelineGroup
Verition Fund Management LLC39,422$546K<0.01%new13F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…38,626$535K<0.01%-8,88913F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP38,394$532K<0.01%+27,88713F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management38,021$527K<0.01%new13F-HRTimelineGroup
SG Americas Securities, LLC37,612$521K<0.01%+23,52513F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…33,243$460K<0.01%-31913F-HR/ATimeline
Focused Wealth Management, Inc32,129$445K0.06%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC30,399$421K<0.01%+12,09713F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding29,062$408K+1,399Timeline
RBF Capital, LLC29,200$404K0.02%-16,16213F-HRTimeline
TUDOR INVESTMENT CORP ET AL27,398$379K<0.01%-13313F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…25,873$358K<0.01%+53613F-HRTimelineGroup
EDGEWOOD MANAGEMENT LLC24,060$333K<0.01%013F-HRTimeline
Caption Management, LLC24,000$332K0.01%new13F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC24,179$323K<0.01%+9,10113F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC22,383$310K<0.01%+9,82813F-HRTimeline
Ensign Peak Advisors, Inc21,643$300K<0.01%013F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.21,140$293K<0.01%-1,59613F-HRTimelineGroup
Handelsbanken Fonder AB20,900$289K<0.01%+5,50013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources19,687$273K<0.01%new13F-HRTimelineGroup
Foundation Wealth Management, LLC19,471$270K0.21%new13F-HRTimeline
Cresset Asset Management, LLC19,434$269K<0.01%-4,99113F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd18,665$259K0.02%+3,10113F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson18,047$249K<0.01%013F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…16,826$233K<0.01%+11,36913F-HRTimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP15,000$223K<0.01%013F-HRTimeline
Creative Planningin group Creative Planning16,061$222K<0.01%-4,84613F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…16,030$222K<0.01%+5,79413F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…15,386$213K<0.01%013F-HRTimeline
PROFUND ADVISORS LLC15,212$211K0.01%+2,55113F-HRTimeline
DekaBank Deutsche Girozentrale14,000$208K<0.01%013F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC14,953$207K<0.01%new13F-HRTimelineGroup
ProShare Advisors LLC14,524$201K<0.01%+3,31213F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND14,279$198K<0.01%013F-HR/ATimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC13,111$182K<0.01%13F-HR/ATimelineGroup
KLP KAPITALFORVALTNING AS12,900$179K<0.01%13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC12,829$178K<0.01%-1,12813F-HR/ATimelineGroup
CARY STREET PARTNERS FINANCIAL LLCin group CARY STREET PARTNERS ASSET MA…12,500$173K0.01%13F-HRTimelineGroup
WOLVERINE TRADING, LLC11,162$166K<0.01%new13F-HRTimeline
Chicago Partners Investment Group LLC11,197$159K0.01%new13F-HRTimeline
China Universal Asset Management Co., L…11,409$158K0.01%+1,06513F-HRTimeline
HighMark Wealth Management LLC11,168$155K0.09%-5,33413F-HRTimeline
Purkiss Capital Advisors LLC10,729$149K0.13%13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS10,434$145K<0.01%new13F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM10,136$140K<0.01%+7213F-HRTimeline
Police & Firemen's Retirement System of…10,113$140K<0.01%13F-HRTimeline
Headlands Technologies LLC7,330$102K0.01%+4,85813F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA6,904$96K<0.01%-1,99013F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…6,552$91K<0.01%013F-HRTimeline
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…5,148$71.3K0.03%+83313F-HRTimelineGroup
GROUP ONE TRADING LLC4,824$66.8K<0.01%-2,61013F-HR/ATimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC4,565$63K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…4,368$60.5K<0.01%013F-HRTimelineGroup
STRS OHIO3,600$49.9K<0.01%-7,60013F-HRTimeline
Amundiin group Amundi1,954$27.7K<0.01%-11,73213F-HRTimelineGroup
AMALGAMATED BANK1,440$20K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC1,189$16K<0.01%+64413F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.1,130$15.7K<0.01%13F-HRTimeline
NISA INVESTMENT ADVISORS, LLC980$13.6K<0.01%-23513F-HRTimeline
SBI Securities Co., Ltd.972$13.5K<0.01%13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…881$12.2K<0.01%-11413F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\861$11.9K<0.01%+6213F-HRTimelineGroup
HM PAYSON & CO800$11.1K<0.01%new13F-HRTimeline
Blue Trust, Inc.711$9.85K<0.01%+65813F-HR/ATimeline
Lindbrook Capital, LLC677$9.38K<0.01%+57413F-HRTimeline
Versant Capital Management, Inc629$8.71K<0.01%+30413F-HRTimeline
Sterling Capital Management LLC594$8.23K<0.01%+50313F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…416$5.76K<0.01%-27013F-HRTimelineGroup
Farther Finance Advisors, LLC353$4.89K<0.01%-2213F-HRTimeline
SIGNATUREFD, LLC352$4.88K<0.01%-54913F-HRTimeline
Aster Capital Management (DIFC) Ltd288$3.99K<0.01%-6713F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.259$3.58K<0.01%-58813F-HR/ATimelineGroup
Manchester Capital Management LLC250$3.46K<0.01%013F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.195$3K<0.01%013F-HRTimelineGroup
MeadowBrook Investment Advisors LLC200$2.77K<0.01%013F-HRTimeline
Evelyn Partners Investment Management L…in group Evelyn Partners Group Ltd199$2.76K<0.01%13F-HRTimelineGroup
Asset Dedication, LLC184$2.55K<0.01%013F-HRTimeline
Brooklyn Investment Group161$2.23K<0.01%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC158$2.19K<0.01%-1,22513F-HRTimeline
SITTNER & NELSON, LLC155$2.15K<0.01%013F-HRTimeline
IFP Advisors, Inc132$1.83K<0.01%new13F-HRTimeline
GAMMA Investing LLC127$1.76K<0.01%+6013F-HRTimeline
ALBION FINANCIAL GROUP /UT125$1.73K<0.01%013F-HRTimeline
Caitong International Asset Management …115$1.59K<0.01%13F-HR/ATimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…104$1.44K<0.01%+913F-HRTimelineGroup
Private Wealth Management Group, LLC104$1.44K<0.01%-12613F-HRTimeline
HARBOR INVESTMENT ADVISORY, LLC100$1.39K<0.01%013F-HRTimeline
Gould Capital, LLC100$1.39K<0.01%013F-HRTimeline
CVA Family Office, LLC72$997<0.01%-2213F-HRTimeline
Parallel Advisors, LLC70$970<0.01%+7013F-HRTimeline
Truvestments Capital LLC68$942<0.01%013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.49$694<0.01%013F-HRTimelineGroup
ROTHSCHILD INVESTMENT LLC35$485<0.01%-513F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK34$471<0.01%new13F-HRTimelineGroup
Cassady Schiller Wealth Management, LLC34$471<0.01%new13F-HRTimeline
Larson Financial Group LLC31$429<0.01%new13F-HRTimeline
POM Investment Strategies, LLC24$332<0.01%013F-HRTimeline
CoreCap Advisors, LLC23$319<0.01%013F-HRTimeline
Allworth Financial LP21$304<0.01%-2313F-HRTimeline
MassMutual Private Wealth & Trust, FSB20$277<0.01%+1413F-HRTimeline
Key Financial Inc12$166<0.01%013F-HRTimeline
Lowe Wealth Advisors, LLC10$139<0.01%013F-HRTimeline
Colonial Trust Advisorsin group Colonial Trust Advisors7$97<0.01%new13F-HRTimelineGroup
Clearstead Advisors, LLC4$56<0.01%013F-HRTimeline
VALLEY WEALTH MANAGERS, INC.in group VALLEY WEALTH MANAGERS, INC.3$42<0.01%013F-HRTimelineGroup
WHITTIER TRUST CO OF NEVADA INC3$41<0.01%013F-HRTimeline
CBIZ Investment Advisory Services, LLC2$28<0.01%new13F-HRTimeline
HARBOUR INVESTMENTS, INC.1$14<0.01%013F-HRTimeline
Sandy Spring Bank0$4<0.01%new13F-HRTimelineAmount filed as zero, left out of ratios.
Covestor Ltd4$00%013F-HRTimelineValue filed as zero, left out of ratios.
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$00%013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

Events

  • SCULLY WILLIAM P bought 215,000 PRTA shares between 2026-10-07 and 2026-10-08, Form 4 filed 2026-10-09. 0001045463-26-000020

    Accepted , ingested

  • SCULLY WILLIAM P bought 100,000 PRTA shares on 2026-10-02, Form 4 filed 2026-10-06. 0001045463-26-000019

    Accepted , ingested