Omeros (OMER) VP General Counsel Peter Cancelmo Exercises Options, Sells Shares

What Happened

• Peter B. Cancelmo, VP and General Counsel of Omeros Corp (OMER), exercised a total of 50,000 stock options (two exercises of 25,000 each) at an exercise price of $2.94 per share, and immediately sold the 50,000 underlying shares in open-market transactions. The option exercises cost $147,000 in aggregate (25,000 × $2.94 × 2) and the sales generated gross proceeds of approximately $929,668 (two sales: $466,128 and $463,540), i.e., roughly $930K. The filing shows corresponding derivative conversion/settlement entries listed at $0.00 (see Key Details/Footnotes).

Key Details

• Transaction dates: August 28, 2026 and August 31, 2026.
• Option exercises: 25,000 shares on 8/28 and 25,000 shares on 8/31 at $2.94 each (total exercise cost $147,000).
• Open-market sales: 25,000 shares sold on 8/28 at a weighted avg $18.65 (gross $466,128; prices in that multi-trade ranged $18.55–$18.77 — footnote F1); 25,000 shares sold on 8/31 at weighted avg $18.54 (gross $463,540; multi-trade range $18.32–$18.90 — footnote F2).
• Additional derivative entries: two "Disposed" derivative line items at $0.00 (one for each exercise date) appear in the filing; these reflect the conversion/settlement of the derivative positions as recorded on the Form 4.
• Vesting note: the option grant vests monthly over 48 months starting April 1, 2023 (footnote F3).
• Shares owned after transaction: not specified in the supplied filing details.
• Filing date vs. trade dates: Form 4 was filed 2026-09-01 reporting trades on 8/28 and 8/31. (Form 4s are generally required within two business days of a reportable transaction; investors may check the official filing for any timeliness notes.)

Context

• This was an exercise of vested options followed by immediate open-market sales of the acquired shares — a common "exercise-and-sell" (cashless) pattern for executives. Such sales typically reflect liquidity events rather than a direct signal about company outlook; the filing itself does not state the insider's motivation.