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GROUP ONE TRADING LLC

Position in QTRX — Quanterix Corp

CIK 932540 CHICAGO, IL

Position in QTRX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$8,350
+$5,281 QoQ
Shares Held
1,933
+121.7% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#97
of 132 holders
Holding Since
Dec 2021
6 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in QTRX Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $20,255,911 across 37 Medical Devices names. QTRX ranks #23 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in QTRX

Export CSV
6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $8,350 1,933
2026-03-31 $3,069 872
2025-09-30 $4,251 783
2022-12-31 $3,848,056 277,838
2022-09-30 $497,332 45,130
2021-12-31 $3,561 84