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CIK 0001710340 · Non-accelerated filer<br>Smaller reporting company

Eton Pharmaceuticals, Inc.

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Ticker
ETON
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
371858472
Phone
(847) 787-7361
Business address
21925 W. FIELD PARKWAY, SUITE 235, DEER PARK, IL, 60010-7278
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$19,432,082
in 7 filings

Net −$19,432,082. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2026-07-31 Matthews Judith M. Chief Financial Officer Grant or award · Common Stock +32,246 32,246
2026-07-31 Erdogan-Trinkaus Ipek Chief Commercial Officer Grant or award · Common Stock +80,000 80,000
2026-07-31 BRYNJELSEN SEAN President & CEO Grant or award · Common Stock +128,985 128,985
2026-07-31 Krempa David Chief Business Officer Grant or award · Common Stock +128,985 128,985
2026-07-31 MAIER PAUL V Director Grant or award · Common Stock +10,000 10,000
2026-07-31 RIEDEL NORBERT G Director Grant or award · Common Stock +10,000 10,000
2026-07-31 Adams Jennifer McKie Director Grant or award · Common Stock +10,000 10,000
2026-07-14 Opaleye Management Inc. 10% owner Sale −15,000 $37.54 $563K 2,665,000
2026-07-14 Opaleye Management Inc. 10% owner Sale −13,315 $37.54 $500K 40,000
2026-07-14 Opaleye Management Inc. 10% owner Sale −15,000 $37.54 $563K 2,665,000
2026-07-14 Opaleye Management Inc. 10% owner Sale −13,315 $37.54 $500K 40,000
2026-07-14 BRYNJELSEN SEAN President & CEO Option exercise +200,000 $1.37 $274K 1,061,194
2026-07-14 BRYNJELSEN SEAN President & CEO Option exercise · Employee Stock Option +200,000 0
2026-07-12 BRYNJELSEN SEAN President & CEO Option exercise +27,500 861,194
2026-07-12 BRYNJELSEN SEAN President & CEO Option exercise · Restricted Stock Units −27,500 0
2026-07-12 Krempa David Chief Business Officer Option exercise +10,000 37,025
2026-07-12 Krempa David Chief Business Officer Option exercise · Restricted Stock Units −10,000 0
2026-07-07 Opaleye Management Inc. 10% owner Sale −20,000 $38.37 $767K 2,680,000
2026-07-07 Opaleye Management Inc. 10% owner Sale −6,685 $38.37 $257K 53,315
2026-07-06 Opaleye Management Inc. 10% owner Sale −10,000 $38.00 $380K 2,700,000

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