CME GROUP INC. — Director's Dealing 2011

Dec 19, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CME GROUP INC. (CME)
CIK: 0001156375
Period of Report: 2011-12-15

Reporting Person: Pietrowicz John W. (MD Business Dev & Corp Finance)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-12-15	Common Stock Class A	A	162	—	Acquired	2910	Direct
2011-12-15	Common Stock Class A	F	51	$239.09	Disposed	2859	Direct

Footnotes

F1: On December 15, 2011, Mr. Pietrowicz received a grant of 162 shares of restricted stock in connection with the vesting of a portion of a performance share equity award.

F2: Mr. Pietrowicz surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on December 15, 2011.