Omeros (OMER) VP David J. Borges Exercises Options, Sells Shares

What Happened

• David J. Borges, VP, Finance & CAO of Omeros Corporation, reported option exercises and open-market sales. The filing shows exercises/conversions that resulted in acquiring 20,000 shares at exercise prices (total cash paid ≈ $190,150) and open-market sales of 20,000 shares for a total of $419,000.
• The report also lists three derivative-related disposals of 20,000 shares with $0 proceeds (reported separately as derivative dispositions in the filing).

Key Details

• Transaction dates and prices:
  • 2026-09-22: Exercised 5,000 shares @ $3.93 (acquired) — $19,650.
  • 2026-09-22: Exercised 5,000 shares @ $2.94 (acquired) — $14,700.
  • 2026-09-22: Sold 10,000 shares open market @ $20.95 — $209,500 (10b5-1 plan).
  • 2026-09-22: Exercise/conversion reported as disposition of 5,000 shares @ $0.00 (derivative).
  • 2026-09-23: Exercised 10,000 shares @ $15.58 (acquired) — $155,800.
  • 2026-09-23: Sold 10,000 shares open market @ $20.95 — $209,500 (10b5-1 plan).
  • 2026-09-23: Exercise/conversion reported as disposition of 10,000 shares @ $0.00 (derivative).
• Open-market sales were executed under a previously established Rule 10b5-1 trading plan (adopted Feb 10, 2026) — see footnote F1.
• Option vesting details are provided in the filing: some options vested monthly over 48 installments (F2, F3) and another had a 25% one-year cliff then monthly vesting thereafter (F4).
• Shares owned after the transactions are not specified in the summary data provided here — check the full Form 4 for post-transaction holdings.
• Filing was submitted on 2026-09-24 for transactions dated 2026-09-22/23, which is within the standard two-business-day reporting window (no late filing indicated).

Context

• These entries reflect option exercises (derivative conversions) and routine open-market sales. The filing separates: (a) exercised/acquired shares where cash was paid at the stated exercise price, and (b) derivative disposals reported with $0 proceeds (these are reported as derivative transactions in the Form 4).
• The open-market sales were executed under a 10b5-1 plan, which is a pre-set trading arrangement; such sales are typically planned in advance rather than being ad hoc signals about company outlook.
• For full detail (exact post-trade holdings, whether any shares were withheld for taxes, or further explanation of the $0 derivative entries), consult the complete Form 4 filing (Accession: 0001437749-26-031169).