PROTHENA CORP PLC

$PRTA
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Smart money positioned

9 of the Top-200 alpha managers hold $PRTA as of the latest 13F snapshot.

13F holders
175
Insider buys · 90d
0
Congress · 90d
0

Smart Money · top-200 alpha cohort

9 holders · Q1 2026

$PRTA is held by 9 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 0.91%, with an average of 0.19% of portfolio. Largest holder: ADAR1 Capital Management, LLC at 0.91%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

01
ADAR1 Capital Management, LLC
0.91% held
α +74.0pts
02
Focused Wealth Management, Inc
0.21% NEW
α +19.2pts
03
WINTON GROUP Ltd
0.01% held
α +27.0pts
04
Connor, Clark & Lunn Investment Management Ltd.
0.00% held
α +12.3pts
05
Level Financial Advisors
0.00% held
α +30.9pts

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 175 · Source: 13F-HR
01
TB Capital Gestao de Recursos Ltda.
—
6,854,848 sh
02
SevenBridge Financial Group, LLC
0.51% of portfolio
5,000,000 sh
03
State Street
—
2,267,802 sh
04
Axa S.a.
—
1,938,498 sh
05
Nomura Asset Management Co. Ltd.
0.02% of portfolio
1,933,534 sh
06
Atlantic Edge Private Wealth Management, LLC
—
1,704,241 sh
07
Chico Wealth RIA
0.91% of portfolio
1,581,443 sh
08
Campbell Newman Asset Management Inc.
0.02% of portfolio
1,547,593 sh
09
Madison Asset Management, LLC
1.80% of portfolio
1,208,568 sh
10
Leuthold Group, LLC
0.01% of portfolio
1,205,978 sh
See all 175 13F holders · Pro →

Insider activity · last 90 days

No insider activity

No Form 4 filings on record for $PRTA in the recent window.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $PRTA in the recent window.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 09:14 UTC.