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SEI INVESTMENTS CO

Position in PRTA — Prothena Corp Public Ltd Co

CIK 350894 OAKS, PA

Position in PRTA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$302,285
+$134,635 QoQ
Shares Held
30,877
+79.0% QoQ
Ownership
0.060%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#79
of 187 holders
Holding Since
Mar 2023
5 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

SEI INVESTMENTS CO holds $1,244,853,717 across 210 Biotechnology names. PRTA ranks #140 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in PRTA

Export CSV
5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $302,285 30,877
2026-03-31 $167,650 17,248
2023-09-30 $227,595 4,717
2023-06-30 $484,924 7,102
2023-03-31 $291,353 6,011