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    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001776865</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



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    <issuerInfo>
      <issuerCik>0001552033</issuerCik>
      <issuerName>TransUnion</issuerName>
      <secFileNumber>001-37470</secFileNumber>
      <issuerAddress>
        <com:street1>555 WEST ADAMS STREET</com:street1>
        <com:city>CHICAGO</com:city>
        <com:stateOrCountry>IL</com:stateOrCountry>
        <com:zipCode>60661</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>(312) 985-2000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>CHAOUKI STEVEN M</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem Street</com:street1>
          <com:city>Smithfield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>951</noOfUnitsSold>
      <aggregateMarketValue>67055.01</aggregateMarketValue>
      <noOfUnitsOutstanding>193200000</noOfUnitsOutstanding>
      <approxSaleDate>05/22/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/19/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>327</amountOfSecuritiesAcquired>
      <paymentDate>02/19/2023</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/21/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>273</amountOfSecuritiesAcquired>
      <paymentDate>02/21/2023</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/21/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>351</amountOfSecuritiesAcquired>
      <paymentDate>02/21/2023</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>STEVEN CHAOUKI</name>
        <address>
          <com:street1>555 West Adams</com:street1>
          <com:city>Chicago</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60661</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>05/18/2023</saleDate>
      <amountOfSecuritiesSold>1792</amountOfSecuritiesSold>
      <grossProceeds>125440.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/22/2023</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>02/17/2023</planAdoptionDate>
      </planAdoptionDates>
      <signature>/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Steven Chaouki</signature>
    </noticeSignature>
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144
0001776865
XXXXXXXX
LIVE
0001552033
TransUnion
001-37470
555 WEST ADAMS STREET
CHICAGO
IL
60661
(312) 985-2000
CHAOUKI STEVEN M
Officer
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
02917
951
67055.01
193200000
05/22/2023
NYSE
Common
02/19/2023
Restricted Stock Vesting
Issuer
N
327
02/19/2023
Compensation
Common
02/21/2023
Restricted Stock Vesting
Issuer
N
273
02/21/2023
Compensation
Common
02/21/2023
Performance Shares
Issuer
N
351
02/21/2023
Compensation
N
STEVEN CHAOUKI
555 West Adams
Chicago
IL
60661
Common
05/18/2023
1792
125440.00
05/22/2023
02/17/2023
/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Steven Chaouki