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SIMPLEX TRADING, LLC

Position in CMPX — Compass Therapeutics, Inc.

CIK 1488542 CHICAGO, IL

Position in CMPX

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$126,560
-$10,191 QoQ
Shares Held
57,790
+123.6% QoQ
Ownership
0.032%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#104
of 213 holders
Holding Since
Jun 2025
5 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CMPX Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $82,538,439 across 183 Biotechnology names. CMPX ranks #77 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CMPX

Export CSV
5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $126,560 57,790
2026-03-31 $136,751 25,851
2025-12-31 $47,857 8,912
2025-09-30 $14,325 4,093
2025-06-30 $2 954