OMER insider trading — Omeros Corp
Over the last 90 days, insiders at Omeros Corp (OMER) made 0 open-market purchases worth $0 and 5 open-market sales worth $1.49M, making them net sellers by $1.49M. The largest sale was by Cancelmo Peter B (VP, General Counsel), who sold 25,000 shares for $466K on Aug 28, 2026.
Updated Oct 16, 2026.
Recent OMER insider transactions
Every Form 4 filed by Omeros Corp officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 23, 2026 | Borges David J. | VP, Finance & CAO | M · Option exercise · 10b5-1 | Direct | 10,000 | $15.58 | $156K | Form 4 |
| Sep 23, 2026 | Borges David J. | VP, Finance & CAO | S · Sale · 10b5-1 | Direct | 10,000 | $20.95 | $210K | Form 4 |
| Sep 22, 2026 | Borges David J. | VP, Finance & CAO | M · Option exercise · 10b5-1 | Direct | 10,000 | $3.44 | $34K | Form 4 |
| Sep 22, 2026 | Borges David J. | VP, Finance & CAO | S · Sale · 10b5-1 | Direct | 10,000 | $20.95 | $210K | Form 4 |
| Aug 31, 2026 | Cancelmo Peter B | VP, General Counsel | M · Option exercise | Direct | 25,000 | $2.94 | $74K | Form 4 |
| Aug 31, 2026 | Cancelmo Peter B | VP, General Counsel | S · Sale | Direct | 25,000 | $18.54 | $464K | Form 4 |
| Aug 28, 2026 | Cancelmo Peter B | VP, General Counsel | M · Option exercise | Direct | 25,000 | $2.94 | $74K | Form 4 |
| Aug 28, 2026 | Cancelmo Peter B | VP, General Counsel | S · Sale | Direct | 25,000 | $18.65 | $466K | Form 4 |
| Aug 27, 2026 | Hanish Arnold C | Director | M · Option exercise | Direct | 10,000 | $14.95 | $149K | Form 4 |
| Aug 27, 2026 | Hanish Arnold C | Director | S · Sale | Direct | 10,000 | $18.95 | $189K | Form 4 |
| Aug 26, 2026 | Hanish Arnold C | Director | M · Option exercise | Direct | 5,000 | $15.81 | $79K | Form 4 |
| Aug 26, 2026 | Hanish Arnold C | Director | S · Sale | Direct | 5,000 | $18.53 | $93K | Form 4 |
| Aug 24, 2026 | Borges David J. | VP, Finance & CAO | M · Option exercise · 10b5-1 | Direct | 906 | $2.94 | $3K | Form 4 |
| Aug 24, 2026 | Borges David J. | VP, Finance & CAO | S · Sale · 10b5-1 | Direct | 906 | $19.10 | $17K | Form 4 |
| Aug 21, 2026 | Borges David J. | VP, Finance & CAO | M · Option exercise · 10b5-1 | Direct | 10,000 | $3.52 | $35K | Form 4 |
| Aug 21, 2026 | Borges David J. | VP, Finance & CAO | S · Sale · 10b5-1 | Direct | 10,000 | $18.95 | $190K | Form 4 |
| Aug 20, 2026 | Cable Thomas J. | Director | M · Option exercise | Direct | 15,000 | $2.96 | $44K | Form 4 |
| Aug 20, 2026 | Cable Thomas J. | Director | S · Sale | Direct | 15,000 | $18.45 | $277K | Form 4 |
| Aug 13, 2026 | Borges David J. | VP, Finance & CAO | M · Option exercise · 10b5-1 | Direct | 5,000 | $3.93 | $20K | Form 4 |
| Aug 13, 2026 | Borges David J. | VP, Finance & CAO | S · Sale · 10b5-1 | Direct | 5,000 | $16.95 | $85K | Form 4 |
OMER insider trading FAQ
Are insiders buying OMER stock?
Not on the open market. In the last 90 days, Omeros Corp insiders made no open-market purchases, and 5 open-market sales totaling $1.49M. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading OMER?
Recent sellers: Cable Thomas J., Cancelmo Peter B, Hanish Arnold C.
Where does OMER insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.