$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.
PROTHENA CORP PLC
13F holders
175
Net 13F flow · Q
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Insider buys · 90d
0
Insider net · 90d
—
Congress · 90d
0
Convergence
—
Institutional holders
Top 10 of 175 · Source: 13F-HR01
TB Capital Gestao de Recursos Ltda.
—
—
02
SevenBridge Financial Group, LLC
—
—
03
State Street
—
—
04
Axa S.a.
—
—
05
Nomura Asset Management Co. Ltd.
—
—
06
Atlantic Edge Private Wealth Management, LLC
—
—
07
Chico Wealth RIA
—
—
08
Campbell Newman Asset Management Inc.
—
—
09
Madison Asset Management, LLC
—
—
10
Leuthold Group, LLC
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Each fund name links to that filer's expert page. Share counts and per-fund weights are pending the 13F ingest fix (portfolios_expertholding.units is currently mis-populated — see the same caveat on the fund detail page's holdings table). Quarter-over-quarter delta ships with the metrics pipeline.
Smart Money · top-200 alpha cohort
9 holders · Q1 202601
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
06
Johnson Financial Group, Inc.
0.00% held
α +14.7pts
07
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
0.00% held
α +27.5pts
08
Citigroup Inc.
0.00% held
α +26.3pts
09
Nisa Investment Advisors, LLC
0.00% held
α +16.6pts
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.
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.
Convergence · Pattern Engine ships in v1.1
30-day windowIn development
Convergence detection for $PRTA lands with the Pattern Engine.
Once the Pattern Engine ships, this section will surface every active convergence event involving $PRTA — the institutional managers and Congress members on the same name, the 30-day window, and the combined position size.
Source data: SEC EDGAR · 13F-HR · Form 4 · CapitolTrades · Last refreshed 10:47 UTC.