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    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001342932</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001692819</issuerCik>
            <issuerName>VISTRA CORP.</issuerName>
            <secFileNumber>001-38086</secFileNumber>
            <issuerAddress>
                <ns2:street1>6555 Sierra Drive</ns2:street1>
                <ns2:city>Irving</ns2:city>
                <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                <ns2:zipCode>75039</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(214) 812-4600</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>JOHN R. SULT</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>25000</noOfUnitsSold>
            <aggregateMarketValue>4291682.50</aggregateMarketValue>
            <noOfUnitsOutstanding>339331954</noOfUnitsOutstanding>
            <approxSaleDate>06/06/2025</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/10/2020</acquiredDate>
            <natureOfAcquisitionTransaction>Open Market Purchase</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Open Market Purchase</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1310</amountOfSecuritiesAcquired>
            <paymentDate>03/10/2020</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>08/11/2015</acquiredDate>
            <natureOfAcquisitionTransaction>Open Market Purchase</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Open Market Purchase</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>6878</amountOfSecuritiesAcquired>
            <paymentDate>08/11/2015</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>05/01/2019</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>6564</amountOfSecuritiesAcquired>
            <paymentDate>05/01/2019</paymentDate>
            <natureOfPayment>Compensation</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>05/21/2014</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2633</amountOfSecuritiesAcquired>
            <paymentDate>05/21/2014</paymentDate>
            <natureOfPayment>Compensation</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>05/21/2013</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2615</amountOfSecuritiesAcquired>
            <paymentDate>05/21/2013</paymentDate>
            <natureOfPayment>Compensation</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/03/2020</acquiredDate>
            <natureOfAcquisitionTransaction>Open Market Purchase</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Open Market Purchase</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>5000</amountOfSecuritiesAcquired>
            <paymentDate>03/03/2020</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>06/06/2025</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ John R. Sult</signature>
        </noticeSignature>
    </formData>
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144
0001342932
XXXXXXXX
LIVE
0001692819
VISTRA CORP.
001-38086
6555 Sierra Drive
Irving
TX
75039
(214) 812-4600
JOHN R. SULT
Director
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
25000
4291682.50
339331954
06/06/2025
NYSE
Common
03/10/2020
Open Market Purchase
Open Market Purchase
N
1310
03/10/2020
Cash
Common
08/11/2015
Open Market Purchase
Open Market Purchase
N
6878
08/11/2015
Cash
Common
05/01/2019
Restricted stock vesting under a registered plan
Issuer
N
6564
05/01/2019
Compensation
Common
05/21/2014
Restricted stock vesting under a registered plan
Issuer
N
2633
05/21/2014
Compensation
Common
05/21/2013
Restricted stock vesting under a registered plan
Issuer
N
2615
05/21/2013
Compensation
Common
03/03/2020
Open Market Purchase
Open Market Purchase
N
5000
03/03/2020
Cash
Y
06/06/2025
/s/ John R. Sult