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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.

Q4 2024 vs. Q3 2024

How the institutions holding Prothena Corp Public Ltd Co changed between Q3 2024 and Q4 2024.

All holders in Q4 2024All holders in Q3 2024

13F holders of PRTA: Q3 2024 compared with Q4 2024
MeasureQ3 2024Q4 2024Change
Holders164171+7
Shares51.0M53.5M+2.54M (+5.0%)
Value$855.8M$741.3M−$114.5M (−13.4%)

New holders (35)

Institutions that held Prothena Corp Public Ltd Co at the end of Q4 2024 but not at the end of Q3 2024.

Institutions new to PRTA in Q4 2024
InstitutionSharesValue% of portfolio
Boxer Capital Management, LLC690,000$9.56M0.81%
Susquehanna Fundamental Investments, LLC80,677$1.12M0.02%
Boothbay Fund Management, LLC62,002$858.7K0.03%
Hennion & Walsh Asset Management, Inc.52,284$724.1K0.03%
Massachusetts Financial Services Co44,815$620.7K0.00%
Verition Fund Management LLC39,422$546.0K0.00%
Balyasny Asset Management LLC38,021$526.6K0.00%
Focused Wealth Management, Inc32,129$445.0K0.06%
Caption Management, LLC24,000$332.4K0.01%
Franklin Resources Inc19,687$272.7K0.00%
Foundation Wealth Management, LLC19,471$269.7K0.21%
Walleye Capital LLC14,953$207.1K0.00%
Raymond James Financial Inc13,111$181.6K0.00%
KLP Kapitalforvaltning AS12,900$178.7K0.00%
Cary Street Partners Financial LLC12,500$173.1K0.01%
Wolverine Trading, LLC11,162$166.1K0.00%
Chicago Partners Investment Group LLC11,197$158.6K0.01%
Purkiss Capital Advisors LLC10,729$148.6K0.13%
Teacher Retirement System of Texas10,434$145.0K0.00%
Police & Firemen's Retirement System of New Jersey10,113$140.1K0.00%
Acadian Asset Management LLC4,565$63.0K0.00%
GF Fund Management Co. Ltd.1,130$15.7K0.00%
SBI Securities Co., Ltd.972$13.5K0.00%
HM Payson & Co800$11.1K0.00%
Evelyn Partners Investment Management LLP199$2.76K0.00%
Skopos Labs, Inc.161$2.23K0.00%
IFP Advisors, Inc132$1.83K0.00%
Caitong International Asset Management Co., Ltd115$1.59K0.00%
Parallel Advisors, LLC70$9700.00%
Huntington National Bank34$4710.00%
Cassady Schiller Wealth Management, LLC34$4710.00%
Larson Financial Group LLC31$4290.00%
Colonial Trust Advisors7$970.00%
CBIZ Investment Advisory Services, LLC2$280.00%
Sandy Spring Bank0$40.00%

Sold out (28)

Institutions that held Prothena Corp Public Ltd Co at the end of Q3 2024 and filed for Q4 2024 without it.

Institutions that sold out of PRTA in Q4 2024
InstitutionShares, Q3 2024Value, Q3 2024
Boxer Capital, LLC690,000$11.5M
Granahan Investment Management Inc312,520$5.23M
Deep Track Capital, LP140,000$2.34M
Algert Global LLC72,961$1.22M
Schonfeld Strategic Advisors LLC62,272$1.04M
Capula Management Ltd43,197$722.7K
Lazard Asset Management LLC42,173$705.0K
HRT Financial LP41,809$699.0K
Primecap Management Co35,500$593.9K
Jump Financial, LLC32,407$542.2K
Gsa Capital Partners LLP28,941$484.0K
Sherbrooke Park Advisers LLC27,582$461.4K
State of Wisconsin Investment Board27,401$458.4K
Dynamic Technology Lab Private Ltd25,764$432.0K
Brevan Howard Capital Management LP20,573$344.2K
Brinker Capital Investments, LLC17,531$293.3K
Orion Portfolio Solutions, LLC17,531$293.3K
Teachers Retirement System of the State of Kentucky14,039$235.0K
Qube Research & Technologies Ltd13,320$222.8K
Systematic Financial Management LP8,125$135.9K
Catalyst Funds Management Pty Ltd6,700$112.1K
Simplex Trading, LLC5,977$99.0K
Danske Bank A/S1,400$23.4K
Byrne Asset Management LLC760$12.7K
Smartleaf Asset Management LLC269$5.39K
Cornerstone Planning Group LLC110$2.01K
Allspring Global Investments Holdings, LLC73$1.22K
Bessemer Group Inc55$1.00K