<SEC-DOCUMENT>0000926544-25-000013.txt : 20250604
<SEC-HEADER>0000926544-25-000013.hdr.sgml : 20250604
<ACCEPTANCE-DATETIME>20250604114839
ACCESSION NUMBER:		0000926544-25-000013
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250604
DATE AS OF CHANGE:		20250604

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CME GROUP INC.
		CENTRAL INDEX KEY:			0001156375
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY & COMMODITY BROKERS, DEALERS, EXCHANGES & SERVICES [6200]
		ORGANIZATION NAME:           	09 Crypto Assets
		EIN:				364459170
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-31553
		FILM NUMBER:		251022366

	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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Carey Charles P
		CENTRAL INDEX KEY:			0001341358
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		20 S. WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001341358</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001156375</issuerCik>
      <issuerName>CME Group Inc.</issuerName>
      <secFileNumber>001-31553</secFileNumber>
      <issuerAddress>
        <com:street1>20 S. Wacker Drive</com:street1>
        <com:city>Chicago</com:city>
        <com:stateOrCountry>IL</com:stateOrCountry>
        <com:zipCode>60606</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>3129301000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Carey Charles P</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Pershing Advisor Solutions</name>
        <address>
          <com:street1>One Pershing Plaza</com:street1>
          <com:city>JERSEY CITY</com:city>
          <com:stateOrCountry>NJ</com:stateOrCountry>
          <com:zipCode>07399</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>500</noOfUnitsSold>
      <aggregateMarketValue>143185.00</aggregateMarketValue>
      <noOfUnitsOutstanding>360360000</noOfUnitsOutstanding>
      <approxSaleDate>05/28/2025</approxSaleDate>
      <securitiesExchangeName>NASDAQ-GS</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>07/12/2007</acquiredDate>
      <natureOfAcquisitionTransaction>Acquisition: Received in exchange for shares of CBOT Holdings Inc</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>12767</amountOfSecuritiesAcquired>
      <paymentDate>07/12/2007</paymentDate>
      <natureOfPayment>Merger Consideration</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Charles P Carey</name>
        <address>
          <com:street1>604 52 Place</com:street1>
          <com:city>Western Springs</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60558</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>05/15/2025</saleDate>
      <amountOfSecuritiesSold>3000</amountOfSecuritiesSold>
      <grossProceeds>817688.33</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>06/04/2025</noticeDate>
      <signature>Carles P Carey</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
