Berkman Charles S 4

What Happened
Charles S. Berkman, Chief Legal Officer of OmniAb, had 13,542 restricted stock units (RSUs) vest and convert into 13,542 shares on Feb 16, 2026 (exercise/conversion, $0.00 exercise price). To satisfy tax withholding, 6,990 of those shares were sold in an open-market transaction on Feb 17, 2026 at a weighted average price of $1.70 per share for total proceeds of $11,883. The remaining shares from this vesting installment (13,542 − 6,990 = 6,552) were retained, absent other holdings.

Key Details

• Transaction dates: conversion/vesting on 2026-02-16; sale on 2026-02-17.
• Sale: 6,990 shares sold at a weighted avg price of $1.70; proceeds $11,883. Reported sale price range: $1.68–$1.79.
• Acquisition: 13,542 shares issued on conversion of RSUs at $0.00 exercise price.
• Footnotes: RSUs vest in three substantially equal annual installments beginning Feb 16, 2025 (F1); each RSU converts to one share (F2). The sale was a required "sell-to-cover" to satisfy tax-withholding obligations (F3), not a discretionary trade. The filer offers to provide the per-price breakdown on request (F4).
• Shares owned after transaction: At least 6,552 shares remained from this vesting (13,542 − 6,990). Total beneficial ownership reported on the Form 4 excerpt provided here is not shown.
• Timeliness: Filing dated 2026-02-17 covering the 2026-02-16 vesting/sale—no late filing flag indicated.

Context
This filing reflects RSU vesting and a mandatory sell-to-cover tax withholding rather than a voluntary market sell meant to express a view on the company. RSU conversions often show $0 exercise price because they are awards converting into shares; selling some shares immediately to cover taxes is routine.