| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Demopulos Gregory A MD | Chairman, CEO & President, Director | 201 ELLIOTT AVENUE WEST, SEATTLE | /s/ Gregory A. Demopulos, M.D. | 15 Oct 2025 | 0001472160 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OMER | Common Stock | Gift | $0 | -600K | -29.6% | $0.00 | 1.43M | 13 Oct 2025 | Direct | F1 |
| transaction | OMER | Common Stock | Gift | $0 | +300K | $0.00 | 300K | 13 Oct 2025 | By trust | F1, F2, F3 | |
| transaction | OMER | Common Stock | Gift | $0 | +300K | $0.00 | 300K | 13 Oct 2025 | By trust | F1, F2, F4 | |
| holding | OMER | Common Stock | 124K | 13 Oct 2025 | By spouse | F2 |
| Id | Content |
|---|---|
| F1 | The reporting person made bona fide gifts of Omeros Corporation common stock, each of 300,000 shares, to separate irrevocable trusts established for the benefit of each of the reporting person's two minor children. |
| F2 | The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, if any, and nothing in this report shall be deemed an admission that the reporting person is the beneficial owner of such securities under Section 16 of the Securities Exchange Act of 1934 or for any other purpose. |
| F3 | Shares held in the [Demopulos Child #1] Gift Trust, an irrevocable trust established for the benefit of a minor child of the reporting person. |
| F4 | Shares held in the [Demopulos Child #2] Gift Trust, an irrevocable trust established for the benefit of a minor child of the reporting person. |