Company · CIK 0001710340 · SIC 2834 — Pharmaceutical Preparations · Nasdaq
Eton Pharmaceuticals, Inc. · ETON
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 28, 2026 SForm 4/A → | Aug 31, 4:06 pm EDT | Paul V MaierDirector | 50,000 | $59.07 | $2,953,572 | 59,745 | −45.6% | |
| Aug 28, 2026 MForm 4/A → | Aug 31, 4:06 pm EDT | Paul V MaierDirector | 62,500 | $4.49 | $280,375 | 72,245 | — | |
| Aug 28, 2026 SForm 4 → | Aug 28, 4:51 pm EDT | Paul V MaierDirector | 50,000 | $59.07 | $2,953,572 | 59,745 | −45.6% | amended |
| Aug 28, 2026 MForm 4 → | Aug 28, 4:51 pm EDT | Paul V MaierDirector | 50,000 | $3.78 | $189,000 | 109,745 | — | amended |
| Aug 24, 2026 SForm 4 → | Aug 24, 5:19 pm EDT | David KrempaChief Business Officer | 25,000 | $65.07 | $1,626,750 | 37,025 | −40.3% | |
| Aug 24, 2026 MForm 4 → | Aug 24, 5:19 pm EDT | David KrempaChief Business Officer | 25,000 | $7.31 | $182,750 | 62,025 | — | |
| Aug 19, 2026 SForm 4 → | Aug 20, 6:26 pm EDT | Sean BrynjelsenPresident & CEO, Director | 100,000 | $60.88 | $6,087,773 | 961,194 | −9.42% | |
| Jul 14, 2026 SForm 4/A → | Jul 17, 7:12 pm EDT | Opaleye Management Inc.10% Owner | 28,315 | $37.54 | $1,063,033 | 40,000 | −41.4% | |
| Jul 14, 2026 SForm 4 → | Jul 16, 5:14 pm EDT | Opaleye Management Inc.10% Owner | 28,315 | $37.54 | $1,063,033 | 40,000 | −41.4% | amended |
| Jul 12, 2026 MForm 4 → | Jul 14, 5:28 pm EDT | Sean BrynjelsenPresident & CEO, Director | 227,500 | $1.37 | $274,000 | 1,061,194 | — | |
| Jul 12, 2026 MForm 4 → | Jul 13, 4:36 pm EDT | David KrempaChief Business Officer | 10,000 | — | — | 37,025 | — | |
| Jul 2, 2026 SForm 4 → | Jul 7, 6:29 pm EDT | Opaleye Management Inc.10% Owner | 126,685 | $37.64 | $4,768,637 | 53,315 | −70.4% | |
| Jun 17, 2026 SForm 4 → | Jun 17, 5:08 pm EDT | Jennifer McKie AdamsDirector | 50,000 | $32.48 | $1,623,795 | 0 | −100% | |
| Jun 17, 2026 MForm 4 → | Jun 17, 5:08 pm EDT | Jennifer McKie AdamsDirector | 50,000 | $3.78 | $189,000 | 50,000 | — |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 28, 2026 MForm 4/A → | Aug 31, 4:06 pm EDT | Paul V MaierDirector | 62,500 | — | — | 0 | — | |
| Aug 28, 2026 MForm 4 → | Aug 28, 4:51 pm EDT | Paul V MaierDirector | 50,000 | — | — | 0 | — | amended |
| Aug 24, 2026 MForm 4 → | Aug 24, 5:19 pm EDT | David KrempaChief Business Officer | 25,000 | — | — | 70,000 | — | |
| Jul 31, 2026 AForm 4 → | Aug 4, 5:10 pm EDT | Charles J CasamentoDirector | 10,000 | — | — | 10,000 | — | |
| Jul 31, 2026 AForm 4 → | Aug 4, 5:04 pm EDT | Judith M. MatthewsChief Financial Officer | 32,246 | — | — | 32,246 | — | |
| Jul 31, 2026 AForm 4 → | Aug 4, 5:03 pm EDT | Ipek Erdogan-TrinkausChief Commercial Officer | 80,000 | — | — | 80,000 | — | |
| Jul 31, 2026 AForm 4 → | Aug 4, 5:01 pm EDT | Sean BrynjelsenPresident & CEO, Director | 128,985 | — | — | 128,985 | — | |
| Jul 31, 2026 AForm 4 → | Aug 4, 5:01 pm EDT | David KrempaChief Business Officer | 128,985 | — | — | 128,985 | — | |
| Jul 31, 2026 AForm 4 → | Aug 4, 4:57 pm EDT | Paul V MaierDirector | 10,000 | — | — | 10,000 | — | |
| Jul 31, 2026 AForm 4 → | Aug 4, 4:56 pm EDT | Norbert G RiedelDirector | 10,000 | — | — | 10,000 | — | |
| Jul 31, 2026 AForm 4 → | Aug 4, 4:55 pm EDT | Jennifer McKie AdamsDirector | 10,000 | — | — | 10,000 | — | |
| Jul 12, 2026 MForm 4 → | Jul 14, 5:28 pm EDT | Sean BrynjelsenPresident & CEO, Director | 227,500 | — | — | 0 | — | |
| Jul 12, 2026 MForm 4 → | Jul 13, 4:36 pm EDT | David KrempaChief Business Officer | 10,000 | — | — | 0 | — | |
| Jun 26, 2026 AForm 4 → | Jun 30, 4:27 pm EDT | David KrempaChief Business Officer | 10,000 | — | — | 96,829 | — | |
| Jun 17, 2026 MForm 4 → | Jun 17, 5:08 pm EDT | Jennifer McKie AdamsDirector | 50,000 | — | — | 0 | — |