There are no significant Insider Shareholders in Omeros as of December 12, 2025.
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Gregory A Md Demopulos | Chairman And CEO & President | 1,726,986 | 15 Oct, 2025 |
| Peter A Md Demopulos | 208,516 | 17 Nov, 2023 | |
| Leroy E. Md Phd Hood | 74,390 | 17 Feb, 2021 | |
| Thomas J. Cable | 35,067 | 23 May, 2023 | |
| Michael A Jacobsen | VP Finance And Cao | 14,000 | 23 Feb, 2021 |
| Arnold C Hanish | 10,000 | 23 May, 2023 | |
| Thomas F. Bumol | 10,000 | 14 Sep, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 13 Oct, 2025 | Gregory A Md Demopulos | Common Stock | D | 600,000 | $0.00 | 1,426,986 | D | G |
| 13 Oct, 2025 | Gregory A Md Demopulos | Common Stock | A | 300,000 | $0.00 | 300,000 | I | G |
| 13 Oct, 2025 | Gregory A Md Demopulos | Common Stock | A | 300,000 | $0.00 | 300,000 | I | G |
| 17 Nov, 2023 | Gregory A Md Demopulos | Common Stock | A | 15,000 | $1.68 | 123,945 | I | P |
| 15 Nov, 2023 | Peter A Md Demopulos | Common Stock | A | 10,000 | $1.53 | 208,516 | D | P |
| 15 Nov, 2023 | Peter A Md Demopulos | - | - | 208,516 | D | |||
| 13 Nov, 2023 | Gregory A Md Demopulos | Common Stock | A | 37,500 | $1.29 | 83,945 | I | A |
| 14 Nov, 2023 | Gregory A Md Demopulos | Common Stock | A | 25,000 | $1.44 | 108,945 | I | A |
| 12 Sep, 2023 | Thomas F. Bumol | Common Stock | A | 10,000 | $3.31 | 10,000 | I | A |
| 12 Sep, 2023 | Thomas F. Bumol | - | - | 10,000 | I | |||
| 22 May, 2023 | Thomas J. Cable | Common Stock | A | 5,000 | $5.30 | 40,067 | D | M |
| 22 May, 2023 | Arnold C Hanish | Common Stock | A | 5,000 | $5.30 | 5,000 | D | M |
| 22 May, 2023 | Arnold C Hanish | - | - | 5,000 | D | |||
| 22 May, 2023 | Arnold C Hanish | Common Stock | D | 5,000 | $6.46 | 0 | D | S |
| 22 May, 2023 | Thomas J. Cable | Common Stock | D | 5,000 | $6.53 | 35,067 | D | S |
| 22 May, 2023 | Arnold C Hanish | - | - | 0 | D | |||
| 08 Sep, 2021 | Arnold C Hanish | Common Stock | A | 10,000 | $9.44 | 10,000 | I | M |
| 08 Sep, 2021 | Arnold C Hanish | - | - | 10,000 | I | |||
| 15 Jun, 2021 | Gregory A Md Demopulos | Common Stock | A | 36,856 | $4.10 | 2,063,842 | D | M |
| 15 Jun, 2021 | Gregory A Md Demopulos | - | - | 2,063,842 | D |