X0303 4 2010-02-16 0 0001156375 CME GROUP INC. CME 0001341365 Donaldson James A 20 S. WACKER DRIVE CHICAGO IL 60606 1 0 0 0 Common Stock Class A 2010-02-16 4 S 0 500 292.71 D 7773.125 D Common Stock Class A 2010-02-16 4 S 0 500 295.56 D 7273.125 D Common Stock Class A 2010-02-16 4 S 0 500 296 D 6773.125 D On February 16, 2010, Mr. Donaldson sold an aggregate of 1,500 shares of CME Group Class A common stock. For reporting purposes, the sales prices within a $1 range have been aggregated and the weighted average sales price has been reported. The price ranges were: $292.67 to $292.74; $295.53 to $295.62; and $296.00 to $296.01. The Company maintains a record of the transactions and copies will be provided upon request. By: Margaret C. Austin For: James A. Donaldson 2010-02-18