GUSTAFSON KURT A 4

What Happened Kurt A. Gustafson, OmniAb's Executive VP, Finance and CFO, reported multiple equity transactions on 2026-02-18. He acquired (via award) 60,000 RSUs and 600,000 RSUs (total 660,000 RSUs, each representing a contingent right to one share). He also exercised/converted derivative awards for 18,750 shares (reported at $0.00). To satisfy tax withholding related to RSU vesting, 9,301 shares were sold in the open market at a weighted average price of $1.71, generating approximately $15,905. The filing shows both an acquisition and a corresponding derivative disposition of 18,750 shares (see footnotes for vesting/settlement details).

Key Details

• Transaction date: February 18, 2026 (Form 4 filed same day).
• Open-market sale: 9,301 shares at a weighted average price $1.71, total ≈ $15,905 (sales ranged $1.68–$1.73; reporting person can provide per-price breakdown) (Footnotes F3, F4).
• Awards granted: 60,000 RSUs and 600,000 RSUs (each RSU = one contingent share) reported as acquired at $0.00 (Footnotes F2, F1, F5 describe vesting schedules).
• Option/derivative activity: Exercise/conversion reported for 18,750 shares (M code) and a matching derivative disposition of 18,750 shares at $0.00; see Footnote F6 for option vesting/exercisability schedule.
• Sell-to-cover: The 9,301-share sale was mandated to satisfy tax withholding on RSU vesting, not a discretionary sale by the insider (Footnote F3).
• Shares owned after the transactions: not specified in the provided filing excerpt.
• Timeliness: Filing date equals transaction date — appears timely (no late filing indicated).

Context

• The large items here are awards (RSUs) and an option/derivative conversion — these are grant/vesting and exercise events, not straightforward open-market purchases. The only open-market sale was a sell-to-cover to meet tax obligations and is described as mandated by the company’s equity plan (not an independent judgmental sale).
• For retail investors: awards and option exercises are common executive compensation events. Sell-to-cover sales typically do not signal a personal decision to reduce holdings.