September 15, 2025 · Form 4 insider transaction
Winkler Julie sold 1,081 shares of CME Group Inc. at $258.83 per share, a transaction worth $279.8K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 2 days after the transaction.
Ms. Winkler surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on September 15, 2025.