Omeros Corporation (OMER) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for OMER. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 165 institutions reported holding OMER, with 35.9 million shares worth $341.9 million in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock | 6,044,633 | $57M | INCREASED |
| Vanguard | 4,647,134 | $44M | INCREASED |
| Ingalls & Snyder | 3,659,523 | $35M | INCREASED |
| UBS Group | 3,201,746 | $30M | INCREASED |
| State Street | 2,319,906 | $22M | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Gregory A Demopulos MD (Chairman, CEO & President) | AWARD | 500,000 | $9M | 2026-10-28 |
| David J. Borges (VP, Finance & CAO) | EXERCISE | 10,000 | $156K | 2026-09-23 |
| David J. Borges (VP, Finance & CAO) | SELL | 10,000 | $210K | 2026-09-23 |
| David J. Borges (VP, Finance & CAO) | EXERCISE | 10,000 | $156K | 2026-09-23 |
| David J. Borges (VP, Finance & CAO) | EXERCISE | 5,000 | $15K | 2026-09-22 |
Full institutional holdings, insider history, and congressional trades for Omeros Corporation on SentiSense.