CME Group Global Head of Fixed Income Reports Stock Grant and Tax Withholdings

Executive Summary

On September 17, 2026, CME Group Inc. ($CME) filed a Form 4 for Michael G. Dennis, Global Head of Fixed Income. The filing reports an equity award grant and subsequent share withholdings to satisfy tax obligations between September 15 and September 16, 2026.

Transaction Breakdown

1. Restricted Stock Grant (Acquisition):

   • Date: September 15, 2026
   • Code: A (Grant/Award)
   • Shares: 2,592 Class A Common Stock
   • Stated Price: $275.09
   • Total Imputed Value: $713,033.28
   • Vesting Terms: Granted under the CME Group Omnibus Stock Plan, vesting in four equal annual installments subject to continued service.

2. Tax Withholdings (Dispositions):

   • September 15, 2026: Surrender of 274 shares at $275.09 ($75,374.66 value) to cover tax liabilities associated with vesting restricted stock (Code F).
   • September 16, 2026: Surrender of 274 shares at $272.46 ($74,654.04 value) to satisfy additional tax obligations (Code F).

Ownership Structure Post-Transaction

Following these transactions, Mr. Dennis directly holds 10,682.3766 shares of CME Group Inc. Class A Common Stock. In addition, an indirect holding of 40.81 shares is maintained through his spouse.

Significance & Market Context

The reported transactions are evaluated as Low trading significance. The transactions consist entirely of regular equity compensation (annual/periodic restricted stock grant) and nondiscretionary share surrenders to fulfill mandatory tax withholding requirements, rather than open-market purchases or discretionary sales.