CME Group Insider Julie Winkler Receives Restricted Stock Grant with Tax Withholding

Executive Summary

On September 17, 2026, CME Group Inc. ($CME) filed a Form 4 on behalf of Julie Winkler, Senior Managing Director and Chief Commercial Officer. The filing discloses an annual restricted stock grant alongside routine share withholdings to satisfy tax obligations resulting from vesting equity awards.

Transaction Breakdown

• Grant (Code A): On September 15, 2026, Ms. Winkler received a grant of 2,864 shares of Class A Common Stock under the CME Group Omnibus Stock Plan, valued at $275.09 per share ($787,857.76 total value). The shares vest in four equal annual installments subject to continued service.
• Tax Withholdings (Code F):
  • On September 15, 2026, a total of 1,054 shares were surrendered in three tranches (373, 361, and 320 shares) at $275.09 per share to satisfy tax withholding requirements upon the vesting of earlier restricted stock awards.
  • On September 16, 2026, an additional 359 shares were surrendered at $272.46 per share for tax withholding purposes.
• Net Impact: Ms. Winkler's direct beneficial ownership increased by a net of 1,451 shares, bringing her total holdings to 31,561 shares of Class A Common Stock.

Market and Trading Significance

The trading significance is assessed as Low. These transactions represent standard executive compensation events—specifically an annual equity award and mandatory tax withholding—rather than open-market buying or selling activity.