Eton Pharmaceuticals, Inc (ETON) insider trading
Every open-market stock purchase and sale by Eton Pharmaceuticals, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Insiders sold $8.7M over the last 12 months (3 sales). No open-market buys.
- Last insider buy: Opaleye Management Inc. (10% owner), $79.1K, 16 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $8.7M (3 sales). Last close $29.13 on Jun 4, 2026.
Recent ETON insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Jun 26, 2026 | David Krempa (C-suite exec) | Bought (not open market) | — |
| Jun 17, 2026 | Jennifer McKie Adams (Director) | Sold | $1.6M |
| Jun 17, 2026 | Jennifer McKie Adams (Director) | Bought (not open market) | — |
| May 28, 2026 | Sean Brynjelsen (CEO) | Sold | $3.8M |
| May 28, 2026 | Sean Brynjelsen (CEO) | Sold | $4.8K |
| May 27, 2026 | David Krempa (C-suite exec) | Sold | $619K |
| May 27, 2026 | David Krempa (C-suite exec) | Bought (not open market) | — |
| May 27, 2026 | David Krempa (C-suite exec) | Bought (not open market) | — |
| May 26, 2026 | David Krempa (C-suite exec) | Sold | $1.2M |
| May 26, 2026 | David Krempa (C-suite exec) | Bought (not open market) | — |
| May 26, 2026 | David Krempa (C-suite exec) | Bought (not open market) | — |
| May 22, 2026 | David Krempa (C-suite exec) | Sold | $1.1M |
| May 22, 2026 | David Krempa (C-suite exec) | Sold | $316K |
| May 22, 2026 | David Krempa (C-suite exec) | Sold | $18.2K |
| May 22, 2026 | David Krempa (C-suite exec) | Bought (not open market) | — |
| Apr 21, 2026 | Norbert G Riedel (Director) | Bought (not open market) | — |
| Apr 21, 2026 | Norbert G Riedel (Director) | Bought (not open market) | — |
| Feb 3, 2026 | Norbert G Riedel (Director) | Bought (not open market) | — |
| Jan 14, 2026 | James R. Gruber (CFO) | Sold (not open market) | $35.5K |
| Jan 14, 2026 | David Krempa (C-suite exec) | Sold (not open market) | $30.3K |
| Jan 12, 2026 | Charles J Casamento (Director) | Bought (not open market) | — |
| Jan 12, 2026 | Ipek Erdogan-Trinkaus (C-suite exec) | Bought (not open market) | — |
| Jan 12, 2026 | Ipek Erdogan-Trinkaus (C-suite exec) | Bought (not open market) | — |
| Jan 12, 2026 | Sean Brynjelsen (CEO) | Bought (not open market) | — |
| Jan 12, 2026 | Norbert G Riedel (Director) | Bought (not open market) | — |
Who's trading ETON
- David Krempa, C-suite exec: sold $3.2M (5 sales), last Jun 26, 2026
- Jennifer McKie Adams, Director: sold $1.6M (1 sale), last Jun 17, 2026
- Sean Brynjelsen, CEO: sold $3.8M (2 sales), last May 28, 2026
- Norbert G Riedel, Director: other filings, last Apr 21, 2026
- James R. Gruber, CFO: other filings, last Jan 14, 2026
- Ipek Erdogan-Trinkaus, C-suite exec: other filings, last Jan 12, 2026
- Paul V Maier, Director: other filings, last Jan 12, 2026
- Charles J Casamento, Director: other filings, last Jan 12, 2026
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