Isaacson Christopher A 4

What Happened

• Christopher A. Isaacson, EVP and COO of Cboe Global Markets (CBOE), had performance-based restricted stock units (PSUs) vest on Feb 12, 2026. A total of 15,512 shares were issued to him (recorded as awards, code A). To satisfy tax-withholding obligations, 6,348 of those shares were withheld (recorded as dispositions, code F) at a per-share value of $270.60, generating ~$1,717,770 in withholding value. The awards also included settlement of dividend-equivalent rights.

Key Details

• Transaction date: February 12, 2026. Filing date: February 17, 2026 (filed within required business-day window).
• Awarded (A): 7,462 + 7,462 + 294 + 294 = 15,512 shares issued (reported at $0.00 acquisition price).
• Withheld/Disposed (F): 2,776 + 3,310 + 131 + 131 = 6,348 shares withheld at $270.60/share; total value ≈ $1,717,770.
• Footnotes: F1 = issuance on vesting of PSUs (awarded Feb 19, 2023; performance period 1/1/2023–12/31/2025; Committee determined payout 2/12/2026). F2 = shares withheld to satisfy tax withholding on PSU vesting. F3 = settlement of dividend-equivalent rights tied to PSUs. F4 = shares withheld for tax on dividend-equivalent settlement.
• Shares owned after transaction: Not specified in the provided filing excerpt.
• Transaction codes: A = award/grant; F = shares withheld/used to pay tax obligation (not an open-market sale).

Context

• This was a routine vesting of performance-based equity and related tax-withholding via net share settlement, not an open-market sale or new cash purchase. For retail investors, tax-withholding dispositions indicate issuance and settlement mechanics (company retained shares to cover taxes) rather than a manager selling stock for investment reasons.