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FEDERATED HERMES, INC.

Position in PRTA — Prothena Corp Public Ltd Co

CIK 1056288 PITTSBURGH, PA

Position in PRTA

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$10,616,285
+$314,553 QoQ
Shares Held
1,084,401
+2.3% QoQ
Ownership
2.11%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#12
of 187 holders
Holding Since
Jun 2021
19 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

FEDERATED HERMES, INC. holds $2,455,215,104 across 149 Biotechnology names. PRTA ranks #47 (0.4% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in PRTA

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19 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $10,616,285 1,084,401
2026-03-31 $10,301,732 1,059,849
2025-12-31 $9,305,204 974,367
2025-09-30 $6,761,902 692,818
2025-06-30 $7,169,197 1,181,087
2025-03-31 $6,759,904 546,255
2024-12-31 $10,334,550 746,177
2024-09-30 $6,774,026 404,903
2024-06-30 $905,291 43,861
2023-09-30 $434 9
2023-06-30 $2,106,847 30,856
2023-03-31 $48,760 1,006
2022-12-31 $62,780 1,042
2022-09-30 $21,228,806 350,137
2022-06-30 $122,256 4,503
2022-03-31 $3,701,944 101,229
2021-12-31 $5,973,892 120,929
2021-09-30 $8,880,030 124,667
2021-06-30 $2,245,126 43,671