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SIMPLEX TRADING, LLC

Position in PRQR — ProQR Therapeutics N.V.

CIK 1488542 CHICAGO, IL

Position in PRQR

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$40,286
-$49,137 QoQ
Shares Held
24,868
-43.8% QoQ
Ownership
0.018%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
20 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in PRQR Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

SIMPLEX TRADING, LLC holds $73,356,830 across 197 Biotechnology names. PRQR ranks #117 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in PRQR

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20 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $40,286 24,868
2025-12-31 $89,423 44,269
2025-06-30 $1,746 856
2025-03-31 $5,463 4,108
2024-12-31 $26,258 9,909
2024-06-30 $11,002 6,628
2024-03-31 $31,029 13,550
2023-12-31 $3,552 1,794
2023-09-30 $19,095 14,689
2023-06-30 $10,578 6,530
2023-03-31 $183,503 86,152
2022-12-31 $130,850 35,365
2022-09-30 $1,817 2,443
2022-06-30 $33 43
2021-12-31 $130,490 16,291
2021-03-31 $807,629 122,183
2020-12-31 $12,545 2,987
2020-09-30 $76 16
2020-06-30 $11,266 1,853
2020-03-31 $134,417 24,484