Eton Pharmaceuticals, Inc. (ETON) ownership: insiders 5% · institutions 63% (13F 2026-03-31). Insider activity, 90 days: Routine (16 sales, 0 open-market buys). SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Opaleye Management Inc. | 2860000.00 | $70.58M | 10.0% | 2026-03-31 |
| EcoR1 Capital, LLC | 2171938.00 | $53.60M | 7.6% | 2026-03-31 |
| BlackRock | 1717286.00 | $42.38M | 6.0% | 2026-03-31 |
| Vanguard | 1319543.00 | $32.57M | 4.6% | 2026-03-31 |
| Nantahala Capital Management, LLC | 1175951.00 | $29.02M | 4.1% | 2026-03-31 |
| Geode Capital Management | 577666.00 | $14.26M | 2.0% | 2026-03-31 |
| State Street | 530215.00 | $13.09M | 1.9% | 2026-03-31 |
| Morgan Stanley | 477957.00 | $11.80M | 1.7% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-19 | |
| Sell | null | 2026-08-19 | |
| Sell | null | 2026-08-19 | |
| Sell | null | 2026-08-19 | |
| Sell | null | 2026-07-31 | |
| Sell | null | 2026-07-31 | |
| Sell | null | 2026-07-31 | |
| Sell | null | 2026-07-31 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.