Omeros Corporation (OMER) ownership: insiders 11% · institutions 41% · index and ETF funds 5% (13F 2026-03-31). Insider activity, 90 days: 9 sales, 0 open-market buys. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| BlackRock | 5309626.00 | $56.07M | 7.3% | 2026-03-31 |
| Vanguard | 4235400.00 | $44.73M | 5.9% | 2026-03-31 |
| Ingalls & Snyder LLC | 3559423.00 | $37.59M | 4.9% | 2026-03-31 |
| UBS | 2341278.00 | $24.72M | 3.2% | 2026-03-31 |
| State Street | 1919575.00 | $20.27M | 2.7% | 2026-03-31 |
| Stifel | 1831585.00 | $19.34M | 2.5% | 2026-03-31 |
| Geode Capital Management | 1752323.00 | $18.51M | 2.4% | 2026-03-31 |
| Kotler Kevin | 905635.00 | $15.55M | 1.3% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-28 | |
| Sell | null | 2026-08-28 | |
| Sell | null | 2026-08-28 | |
| Sell | null | 2026-08-28 | |
| Sell | null | 2026-08-26 | |
| Sell | null | 2026-08-26 | |
| Sell | null | 2026-08-26 | |
| Sell | null | 2026-08-26 |
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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.