🕵️ ETON Pharmaceuticals, Inc. ($ETON)
SEC insider & ownership activity, last 12 months · CIK 1710340 · every row links its SEC filing
Over the last 12 months insiders sold $25.2M with no open-market buying against it. Brynjelsen Sean sold $9.9M (May–Aug). 3 planned sales are pending, the largest $9.0M (James R. Gruber). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 5 sellers, $25.2M (23 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Brynjelsen Sean | 0 | – | 6 | $9.9M | Aug 20, 2026 |
| Opaleye Management Inc. | 0 | – | 7 | $5.8M | Jul 14, 2026 |
| Krempa David | 0 | – | 6 | $4.9M | Aug 24, 2026 |
| Paul V. Maier | 0 | – | 3 | $3.0M | Aug 28, 2026 |
| Adams Jennifer McKie | 0 | – | 1 | $1.6M | Jun 17, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| ECOR1 Capital, LLC | 7.7% | 13G | Feb 14, 2025 | filing ↗ | |
| Oleg Nodelman | 7.7% | 13G | Feb 14, 2025 | filing ↗ | |
| ECOR1 Capital Fund Qualified, L.P. | 7.2% | 13G | Feb 14, 2025 | filing ↗ | |
| BlackRock, Inc. | 6.9% | 13G | Jul 28, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Paul V. Maier | $3.0M | Aug 28, 2026 | filing ↗ |
| Krempa David | $1.6M | Aug 24, 2026 | filing ↗ |
| Brynjelsen Sean | $6.3M | Aug 19, 2026 | filing ↗ |
| James R. Gruber | $9.0M | Jun 26, 2026 | filing ↗ |
| James R. Gruber | $875K | Jun 25, 2026 | filing ↗ |
| James R. Gruber | $831K | Jun 23, 2026 | filing ↗ |
| Adams Jennifer McKie | $1.6M | Jun 17, 2026 | filing ↗ |
| James R. Gruber | $84K | Jun 2, 2026 | filing ↗ |
| Brynjelsen Sean | $3.9M | May 28, 2026 | filing ↗ |
| Krempa David | $3.5M | May 22, 2026 | filing ↗ |
| Krempa David | $30K | Jan 14, 2026 | filing ↗ |
| James R. Gruber | $35K | Jan 14, 2026 | filing ↗ |
| Brynjelsen Sean | $77K | Jan 14, 2026 | filing ↗ |
| James R. Gruber | $92K | Dec 12, 2025 | filing ↗ |
| Brynjelsen Sean | $136K | Dec 12, 2025 | filing ↗ |
| Erdogan-Trinkaus Ipek | $2K | Dec 12, 2025 | filing ↗ |
| Krempa David | $127K | Dec 12, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Aug 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 13, 2026 | filing ↗ |
| Material agreement (1.01) | Jul 31, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | Jul 31, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 31, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jul 31, 2026 | filing ↗ |
| Other events (8.01) | Jul 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 9, 2026 | filing ↗ |
| Material agreement (1.01) | May 18, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | May 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 18, 2026 | filing ↗ |
| Earnings (2.02) | May 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 14, 2026 | filing ↗ |
| Other events (8.01) | May 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 1, 2026 | filing ↗ |
| Other events (8.01) | Apr 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 27, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 16, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 16, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 9, 2026 | filing ↗ |
| New financial obligation (2.03) | Apr 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 9, 2026 | filing ↗ |
| Earnings (2.02) | Mar 19, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 19, 2026 | filing ↗ |
| Material agreement (1.01) | Feb 27, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | Feb 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 27, 2026 | filing ↗ |
| Other events (8.01) | Feb 25, 2026 | filing ↗ |