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GROUP ONE TRADING LLC

Position in KPTI — Karyopharm Therapeutics Inc.

CIK 932540 CHICAGO, IL

Position in KPTI

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$1,066,805
+$313,002 QoQ
Shares Held
191,527
+87.0% QoQ
Ownership
0.845%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Jun 2025
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in KPTI Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $126,595,183 across 210 Biotechnology names. KPTI ranks #27 (0.8% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in KPTI

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4 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $1,066,805 191,527
2025-12-31 $753,803 102,419
2025-09-30 $447,571 68,436
2025-06-30 $421,949 97,900