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GROUP ONE TRADING LLC

Position in ETON — Eton Pharmaceuticals, Inc.

CIK 932540 CHICAGO, IL

Position in ETON

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$5,611
-$2,844 QoQ
Shares Held
155
-69.0% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#141
of 163 holders
Holding Since
Sep 2021
9 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ETON Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $38,914,322 across 31 Drug Manufacturers - Specialty & Generic names. ETON ranks #20 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ETON

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9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $5,611 155
2025-12-31 $8,455 500
2025-09-30 $16,558 762
2025-03-31 $8,229 634
2024-09-30 $4,332 722
2022-09-30 $1,276 608
2022-06-30 $20,459 7,809
2021-12-31 $166,452 38,800
2021-09-30 $70,781 14,044