Form4insider filings, from the source

Insider holders · CIK 0001710340

Eton Pharmaceuticals, Inc. · ETON

Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity

InsiderDirect sharesIndirect sharesTotal reportedLast report (ET)From
Imprimis Pharmaceuticals, Inc.10% Owner3,500,000—3,500,000Nov 13, 2018 · 5:41 pm ESTForm 3
Sean BrynjelsenPresident & CEO961,19424,940986,134Aug 20, 2026 · 6:26 pm EDTForm 4
Mark L BaumDirector784,74510,000794,745Nov 15, 2018 · 7:06 pm ESTForm 4
Paul V MaierDirector72,245—72,245Aug 31, 2026 · 4:06 pm EDTForm 4/A
Charles J CasamentoDirector68,420—68,420Nov 15, 2018 · 7:24 pm ESTForm 4
Norbert G RiedelDirector59,745—59,745Nov 15, 2018 · 7:10 pm ESTForm 4
Opaleye Management Inc.10% Owner—40,00040,000Jul 17, 2026 · 7:12 pm EDTForm 4/A
David KrempaChief Business Officer37,025—37,025Aug 24, 2026 · 5:19 pm EDTForm 4
Danka RadosavljevicChief Operating Officer22,473—22,473Aug 12, 2026 · 5:00 pm EDTForm 3
William Wilson TroutmanCFO, Treasurer & Secretary5,000—5,000Nov 15, 2018 · 7:07 pm ESTForm 4
Jennifer McKie AdamsDirector0—0Jun 17, 2026 · 5:08 pm EDTForm 4

Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.