Perkinson Diana T. 4

What Happened Diana T. Perkinson, a non‑employee director of Omeros Corporation (OMER), was granted an option to purchase 15,000 shares on June 18, 2026. The grant is reported as a derivative award (acquisition price $0 on the Form 4). This was a routine director compensation grant, not a share sale or open‑market purchase.

Key Details

• Transaction date: 2026-06-18; Form 4 filed: 2026-06-22 (timely under the two‑business‑day rule).
• Award: option to purchase 15,000 common shares; reported acquisition price $0 (derivative grant).
• Vesting: the option will fully vest and become exercisable the day before the 2027 annual meeting, provided Perkinson continues to serve as a director (per footnote).
• Shares owned after transaction: not specified in the provided filing.
• Footnotes: F1 describes the automatic annual director option award; F2 states the vesting condition tied to continued service through the 2027 annual meeting.

Context This is a routine annual equity award under Omeros’s non‑employee director compensation policy, common for board members. As a derivative (option) grant, it does not represent an immediate purchase or sale of shares and does not indicate any immediate cash proceeds or liquidity event.