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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 2023 vs. Q1 2023

How the institutions holding Prothena Corp Public Ltd Co changed between Q1 2023 and Q2 2023.

All holders in Q2 2023All holders in Q1 2023

13F holders of PRTA: Q1 2023 compared with Q2 2023
MeasureQ1 2023Q2 2023Change
Holders192196+4
Shares51.7M52.0M+214.3K (+0.4%)
Value$2.51B$3.54B+$1.03B (+41.0%)

New holders (30)

Institutions that held Prothena Corp Public Ltd Co at the end of Q2 2023 but not at the end of Q1 2023.

Institutions new to PRTA in Q2 2023
InstitutionSharesValue% of portfolio
Affinity Asset Advisors, LLC100,000$6.83M2.69%
Bank of Montreal66,767$4.61M0.00%
Walleye Capital LLC55,652$3.80M0.07%
Integral Health Asset Management, LLC52,000$3.55M0.47%
Silverarc Capital Management, LLC49,721$3.39M1.15%
Empowered Funds, LLC43,937$3.00M0.11%
EA Series Trust43,937$3.00M0.11%
Woodline Partners LP41,633$2.84M0.03%
Franklin Resources Inc20,739$1.42M0.00%
Martingale Asset Management L P11,318$772.8K0.02%
Teachers Retirement System of the State of Kentucky11,144$761.0K0.01%
Marshall Wace, LLP10,869$742.1K0.00%
Parallax Volatility Advisers, L.P.6,425$438.7K0.02%
Pictet Asset Management SA5,057$345.3K0.00%
Moran Wealth Management, LLC4,509$307.9K0.01%
Schroder Investment Management Group3,998$279.9K0.00%
Delphia (USA) Inc.3,883$265.1K0.42%
HighTower Advisors, LLC3,781$263.0K0.00%
Wetherby Asset Management Inc3,570$243.8K0.01%
Penserra Capital Management LLC3,104$211.0K0.00%
Beirne Wealth Consulting Services, LLC3,000$204.8K0.16%
Metropolitan Life Insurance Co2,264$154.6K0.01%
Jefferies Financial Group Inc.845$57.7K0.00%
West Tower Group, LLC659$45.0K0.03%
EverSource Wealth Advisors, LLC309$21.1K0.00%
GWM Advisors LLC150$10.2K0.00%
Harbor Capital Advisors, Inc.53$3.62K0.00%
CVA Family Office, LLC14$9560.00%
Versant Capital Management, Inc6$4100.00%
Gradient Investments LLC1$680.00%

Sold out (26)

Institutions that held Prothena Corp Public Ltd Co at the end of Q1 2023 and filed for Q2 2023 without it.