Eton Pharmaceuticals, Inc. (ETON) ownership: Top institutional holder: Opaleye Management Inc. ($70.58M). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| Opaleye Management Inc. | 2860000.00 | $70.58M | 2026-03-31 |
| EcoR1 Capital, LLC | 2171938.00 | $53.60M | 2026-03-31 |
| BlackRock, Inc. | 1717286.00 | $42.38M | 2026-03-31 |
| Nantahala Capital Management, LLC | 1175951.00 | $29.02M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 994089.00 | $24.53M | 2026-03-31 |
| VANGUARD GROUP INC | 1348668.00 | $22.81M | 2025-12-31 |
| GEODE CAPITAL MANAGEMENT, LLC | 577666.00 | $14.26M | 2026-03-31 |
| STATE STREET CORP | 530215.00 | $13.09M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-17 | |
| Sell | null | 2026-06-17 | |
| Sell | null | 2026-06-17 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-22 |
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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.