Isaacson Christopher A 4

What Happened
Christopher A. Isaacson, EVP and Chief Operating Officer of Cboe Global Markets (CBOE), converted restricted stock units (RSUs) into 5,961 shares on Feb 19, 2026. The shares were valued at $286.17 each for a gross value of $1,705,860. To satisfy tax liabilities, 2,646 shares were withheld/disposed (value ~$757,206), leaving Isaacson with a net 3,315 shares worth about $948,654. Several related entries at $0.00 reflect the conversion/cancellation of the derivative RSU awards.

Key Details

• Transaction date: February 19, 2026; Form filed February 23, 2026 (timely filing).
• Valuation/price used: $286.17 per share.
• Gross shares converted: 5,961 (split across multiple award tranches).
• Shares withheld/disposed for taxes/exercise price: 2,646 (codes F — tax withholding).
• Net shares received: 3,315; net value ≈ $948,654.
• Footnotes: F1–F4 indicate these were restricted stock units (1 RSU = 1 share) with vesting schedules in three equal annual installments beginning on Feb 19 of 2024, 2025, and 2026.
• Filing timeliness: Filing date is within the SEC’s two business-day window for Form 4s (not reported late).
• Shares owned after transaction: Not specified in the provided filing excerpt.

Context
This was not an open-market purchase or disposition for investment purposes but the conversion/vesting of RSUs and a routine withholding of shares to cover tax obligations (common “net settlement”/cashless treatment). The M code denotes exercise/conversion of a derivative (here, RSUs converted into common stock); the F code indicates shares were surrendered/withheld to pay tax liabilities. Such withholding transactions are administrative and do not, by themselves, indicate the insider’s view on the stock.