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BARCLAYS PLC

Position in PRTA — Prothena Corp Public Ltd Co

CIK 312069 LONDON, X0

Position in PRTA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$368,329
-$28,848 QoQ
Shares Held
37,623
-7.9% QoQ
Ownership
0.073%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#78
of 187 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in PRTA Over Time

Shares Held

Position Value (USD)

Derivatives in PRTA

reported options exposure · as of Mar 31, 2020
CallValue
$956,580
CallShares
89,400
PutValue
$127,330
PutShares
11,900

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

BARCLAYS PLC holds $1,706,205,847 across 455 Biotechnology names. PRTA ranks #183 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in PRTA

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28 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $368,329 37,623
2026-03-31 $397,177 40,862
2025-12-31 $1,753,618 183,625
2025-09-30 $957,211 98,075
2025-06-30 $703,196 115,848
2025-03-31 $1,031,839 83,381
2024-12-31 $1,458,931 105,338
2024-09-30 $1,593,063 95,222
2024-06-30 $935,115 45,306
2024-03-31 $1,444,882 58,332
2023-12-31 $5,182,338 142,607
2023-09-30 $4,151,188 86,035
2023-06-30 $4,630,202 67,812
2023-03-31 $3,131,355 64,604
2022-12-31 $4,780,174 79,339
2022-09-30 $4,126,598 68,062
2022-06-30 $48,354 1,781
2022-03-31 $290,000 7,930
2021-12-31 $2,414,672 48,880
2021-09-30 $1,284,704 18,036
2021-06-30 $429,787 8,360
2021-03-31 $740,964 29,497
2020-12-31 $206,679 17,209
2020-09-30 $213,875 21,409
2020-06-30 $294,615 28,166
2020-03-31 $127,330 11,900
2020-03-31 $400,692 37,448
2020-03-31 $956,580 89,400