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    <issuerInfo>
      <issuerCik>0000036029</issuerCik>
      <issuerName>FIRST FINANCIAL BANKSHARES INC</issuerName>
      <secFileNumber>000-07674</secFileNumber>
      <issuerAddress>
        <com:street1>400 PINE STREET</com:street1>
        <com:city>ABILENE</com:city>
        <com:stateOrCountry>TX</com:stateOrCountry>
        <com:zipCode>79601</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>3256277155</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Denny Michael B.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
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    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>The Charles Schwab Corporation</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>7000</noOfUnitsSold>
      <aggregateMarketValue>293930.00</aggregateMarketValue>
      <noOfUnitsOutstanding>142910710</noOfUnitsOutstanding>
      <approxSaleDate>11/06/2024</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/07/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Open Market Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Open Market Purchase</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>7000</amountOfSecuritiesAcquired>
      <paymentDate>03/07/2022</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>Shares being sold from acct: MJD CANYON INVESTMENT LP</remarks>
    <noticeSignature>
      <noticeDate>11/06/2024</noticeDate>
      <signature>Michael Denny</signature>
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144
0001774246
XXXXXXXX
LIVE
0000036029
FIRST FINANCIAL BANKSHARES INC
000-07674
400 PINE STREET
ABILENE
TX
79601
3256277155
Denny Michael B.
Director
Common
The Charles Schwab Corporation
3000 Schwab Way
Westlake
TX
76262
7000
293930.00
142910710
11/06/2024
NASDAQ
Common
03/07/2022
Open Market Purchase
Open Market Purchase
N
7000
03/07/2022
Cash
Y
Shares being sold from acct: MJD CANYON INVESTMENT LP
11/06/2024
Michael Denny