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Squarepoint Ops LLC

Position in PRTA — Prothena Corp Public Ltd Co

CIK 1642575 NEW YORK, NY

Position in PRTA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,192,676
-$51,866 QoQ
Shares Held
223,971
-3.0% QoQ
Ownership
0.436%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#35
of 187 holders
Holding Since
Mar 2020
16 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in PRTA Over Time

Shares Held

Position Value (USD)

Derivatives in PRTA

reported options exposure · as of Dec 31, 2024
CallValue
$336,555
CallShares
24,300
PutValue
$0
PutShares
0

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

Squarepoint Ops LLC holds $1,234,876,212 across 255 Biotechnology names. PRTA ranks #72 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in PRTA

Export CSV
16 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,192,676 223,971
2026-03-31 $2,244,542 230,920
2025-12-31 $2,082,291 218,041
2025-09-30 $1,239,842 127,033
2025-06-30 $1,270,141 209,249
2024-12-31 $336,555 24,300
2023-12-31 $2,690,250 74,030
2023-09-30 $1,560,356 32,339
2023-03-31 $3,795,637 78,309
2022-12-31 $332,339 5,516
2021-12-31 $326,336 6,606
2021-06-30 $1,330,799 25,886
2021-03-31 $357,608 14,236
2020-12-31 $213,765 17,799
2020-06-30 $157,569 15,064
2020-03-31 $299,846 28,023