<SEC-DOCUMENT>0001156375-21-000155-index.html : 20211021
<SEC-HEADER>0001156375-21-000155.hdr.sgml : 20211021
<ACCEPTANCE-DATETIME>20211021171643
ACCESSION NUMBER:		0001156375-21-000155
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211019
FILED AS OF DATE:		20211021
DATE AS OF CHANGE:		20211021

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Piell Hilda Harris
		CENTRAL INDEX KEY:			0001409789

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31553
		FILM NUMBER:		211337883

	MAIL ADDRESS:	
		STREET 1:		20 S. WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CME GROUP INC.
		CENTRAL INDEX KEY:			0001156375
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY & COMMODITY BROKERS, DEALERS, EXCHANGES & SERVICES [6200]
		IRS NUMBER:				364459170
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		20 S. WACKER DR.
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3129301000

	MAIL ADDRESS:	
		STREET 1:		20 S. WACKER DR.
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CHICAGO MERCANTILE EXCHANGE HOLDINGS INC
		DATE OF NAME CHANGE:	20010802
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_163485098021673.xml
<DESCRIPTION>FORM 4
<TEXT>
Document 1 - file: wf-form4_163485098021673.html

Document 1 - RAW XML: wf-form4_163485098021673.xml

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</SEC-DOCUMENT>