🕵️ Omeros Corp ($OMER)
SEC insider & ownership activity, last 12 months · CIK 1285819 · every row links its SEC filing
Insider sell value was withheld pending verification over the last 12 months. 2 planned sales are pending, the largest $466K (Peter Cancelmo). No red-flag 8-Ks in the window.
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Insider flow
0 buyers, $0 (0 lots) · 4 sellers, value withheld pending verification (12 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Peter B. Cancelmo | 0 | – | 2 | $930K | Aug 31, 2026 |
| David J. Borges | 0 | – | 5 | value withheld pending verification | Aug 24, 2026 |
| Thomas J. Cable | 0 | – | 2 | $364K | Aug 20, 2026 |
| Arnold C. Hanish | 0 | – | 3 | $282K | Aug 27, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8.2% | 13G | Jul 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Peter Cancelmo | $464K | Aug 31, 2026 | filing ↗ |
| Peter Cancelmo | $466K | Aug 28, 2026 | filing ↗ |
| Arnold Hanish | $189K | Aug 27, 2026 | filing ↗ |
| Arnold Hanish | $94K | Aug 26, 2026 | filing ↗ |
| David Borges | $203K | Aug 21, 2026 | filing ↗ |
| Thomas Cable | $277K | Aug 20, 2026 | filing ↗ |
| David Borges | $69K | Aug 13, 2026 | filing ↗ |
| Thomas Cable | $90K | May 22, 2026 | filing ↗ |
| David J. Borges | $369K | Jan 13, 2026 | filing ↗ |
| David J. Borges | $382K | Jan 12, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Aug 12, 2026 | filing ↗ |
| Earnings (2.02) | Aug 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 12, 2026 | filing ↗ |
| Other events (8.01) | Jul 20, 2026 | filing ↗ |
| Other events (8.01) | Jul 2, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 18, 2026 | filing ↗ |
| Other events (8.01) | Jun 17, 2026 | filing ↗ |
| Earnings (2.02) | May 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 13, 2026 | filing ↗ |
| Earnings (2.02) | Mar 31, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 31, 2026 | filing ↗ |
| Earnings (2.02) | Jan 7, 2026 | filing ↗ |
| Other events (8.01) | Dec 24, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 24, 2025 | filing ↗ |
| Agreement terminated (1.02) | Nov 25, 2025 | filing ↗ |
| Acquisition or disposition (2.01) | Nov 25, 2025 | filing ↗ |
| Other events (8.01) | Nov 25, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 25, 2025 | filing ↗ |
| Earnings (2.02) | Nov 13, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 13, 2025 | filing ↗ |
| Material agreement (1.01) | Oct 10, 2025 | filing ↗ |
| Other events (8.01) | Oct 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 10, 2025 | filing ↗ |