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ARMISTICE CAPITAL, LLC

Position in PRTA — Prothena Corp Public Ltd Co

CIK 1601086 NEW YORK, NY

Position in PRTA

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$4,271,074
-$10,053,926 QoQ
Shares Held
439,411
-70.7% QoQ
Ownership
0.856%
of shares outstanding
% of Portfolio
0.14%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2023
10 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

ARMISTICE CAPITAL, LLC holds $1,506,954,940 across 50 Biotechnology names.

# Ticker Company Shares Value (USD) Open

All Filings in PRTA

Export CSV
10 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $4,271,074 439,411
2025-12-31 $14,325,000 1,500,000
2025-09-30 $17,802,240 1,824,000
2025-06-30 $13,572,520 2,236,000
2025-03-31 $27,175,500 2,196,000
2024-12-31 $30,968,600 2,236,000
2024-09-30 $27,604,500 1,650,000
2024-06-30 $32,198,400 1,560,000
2024-03-31 $27,147,920 1,096,000
2023-12-31 $10,102,520 278,000