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CHICAGO TRUST Co NA

Bank

Position in PRTA — Prothena Corp Public Ltd Co

CIK 1601539 GRAYSLAKE, IL

Position in PRTA

as of Jun 30, 2026 · filed Jul 16, 2026
Position Value
$147,408
+$1,054 QoQ
Shares Held
15,057
0.0% QoQ
Ownership
0.029%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#105
of 187 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in PRTA Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

CHICAGO TRUST Co NA holds $832,069 across 3 Biotechnology names. PRTA ranks #3 (17.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 PRTA
Prothena Corp Public Ltd Co
This page
15,057 $147,408

All Filings in PRTA

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2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $147,408 15,057
2026-03-31 $146,354 15,057