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Optiver Holding B.V.

Position in PRTA — Prothena Corp Public Ltd Co

CIK 1859606 AMSTERDAM, P7

Position in PRTA

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$1,556
-$1,330 QoQ
Shares Held
159
-46.5% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#157
of 187 holders
Holding Since
Sep 2025
4 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in PRTA Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Optiver Holding B.V. holds $14,292,945 across 180 Biotechnology names. PRTA ranks #129 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in PRTA

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4 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,556 159
2026-03-31 $2,886 297
2025-12-31 $2,826 296
2025-09-30 $3,435 352