Companies / Omeros Corp
Omeros Corp
Nasdaq: OMERCIK 1285819SEATTLE, WA
Insider flow · last 90 daysNet sells $87.0K
Financials · FY2020
Ownership
72.4M shares outstanding · as of Aug 7, 2026
Ownership
| Insiders | 2.08% | 1,504,375 |
| 10%+ / strategic | 4.79% | 3,466,268 |
| Institutions | 41.44% | 29,994,486 |
| Public float | 51.70% | 37,423,187 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 9
View all →| Insider | % of shares | Shares |
|---|---|---|
Demopulos Gregory A MDCEOChairman, CEO & President · Director | 2.03% | 1,469,308 |
Cable Thomas J.Director | 0.05% | 35,067 |
Borges David J.VP, Finance & CAO | 0.00% | 0 |
Bumol Thomas F.Director | — | — |
Demopulos Peter A MDDirector | — | — |
Hanish Arnold CDirector | — | — |
Hood Leroy E. MD PhDDirector | — | — |
Perkinson Diana T.Director | — | — |
Shah RajivDirector | — | — |
Institutional holders 165
View all →| Holder | Value | % of shares |
|---|---|---|
| $68.93M | 5.54% | |
| $57.48M | 8.35% | |
| $38.18M | 3.07% | |
| $31.08M | 2.50% | |
| $22.06M | 3.20% | |
| $18.51M | 2.42% | |
| $15.55M | 1.25% | |
| $12.74M | 1.02% | |
| $11.82M | 0.95% | |
| $10.33M | 0.83% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | Common stock | $9.34M | +982K +19.40% | 6,044,633 8.35% of shares | medium |
| Q1 2026 as of | D. E. Shaw & Co., Inc. 13F manager | Trim | Common stock | $-7.22M | -684K -90.57% | 71,168 0.10% of shares | medium |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $7.10M | +746K +47.43% | 2,319,906 3.20% of shares | medium |
| Q1 2026 as of | Nomura Holdings Inc 13F manager | Trim | Common stock | $-6.51M | -617K -94.16% | 38,237 0.05% of shares | medium |
| Q1 2026 as of | Royal Bank of Canada 13F manager | Trim | Common stock | $-4.98M | -498K -99.84% | 800 <0.01% of shares | low |
| Q1 2026 as of | Itau Unibanco Holding S.A. 13F manager | Exit | Common stock | $-3.05M | -180K -100.00% | 0 | low |
| Q4 2025 as of | Bank of America Corp /De 13F manager | Trim | Common stock | $-2.76M | -161K -58.31% | 114,808 0.16% of shares | low |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Trim | Common stock | $-2.52M | -238K -45.41% | 286,474 0.40% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| Vanguard Group Inc | Passive13G | — |
| Ingalls & Snyder LLC | Passive13G/A | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| OMER | — | 682143102 |