SEC Form 4 · accession 0001437749-26-028754
OMEROS CORP · OMER
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Thomas J. Cable
Director
Period of report
Aug 20, 2026
Accepted (ET)
Aug 21, 2026 · 5:34 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001285819
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Aug 20, 2026 | M | 7,500 | $2.00 | A | 42,567 | D | |
| Common Stock | Aug 20, 2026 | M | 7,500 | $3.93 | A | 50,067 | D | |
| Common StockF1 | Aug 20, 2026 | S | 15,000 | $18.4515 | D | 35,067 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (Right to Buy) | $2.00 | Aug 20, 2026 | M | 7,500 | D | Jun 22, 2023 | Jun 17, 2032 | Common Stock | 7,500 | 0 | D |
| Stock Option (Right to Buy) | $3.93 | Aug 20, 2026 | M | 7,500 | D | Jun 22, 2023 | Sep 21, 2032 | Common Stock | 7,500 | 0 | D |
Explanation of responses
- F1This transaction was executed in multiple trades at prices ranging from $18.23 to $18.72. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions referenced in this footnote were effected upon request to the SEC staff, the issuer, or a security holder of the issuer.