<?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>0001014803</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001069258</issuerCik>
      <issuerName>KRATOS DEFENSE &amp; SECURITY SOLUTIONS, INC.</issuerName>
      <secFileNumber>001-34460</secFileNumber>
      <issuerAddress>
        <com:street1>10680 TREENA STREET</com:street1>
        <com:street2>SUITE 600</com:street2>
        <com:city>SAN DIEGO</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>92131</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>858-812-7300</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Jarvis Scot B</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <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>5417</noOfUnitsSold>
      <aggregateMarketValue>411150.00</aggregateMarketValue>
      <noOfUnitsOutstanding>170329158</noOfUnitsOutstanding>
      <approxSaleDate>04/16/2026</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>11/18/2016</acquiredDate>
      <natureOfAcquisitionTransaction>VARIOUS METHODS OF ACQUISITION BETWEEN 11/18/16 to 3/30/21</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER /OPEN MARKET</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>5417</amountOfSecuritiesAcquired>
      <paymentDate>11/18/2016</paymentDate>
      <natureOfPayment>N/A</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>SCOT JARVIS</name>
        <address>
          <com:street1>1 Chisholm Trail</com:street1>
          <com:street2>Suite 300</com:street2>
          <com:city>Round Rock</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78681</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <saleDate>01/28/2026</saleDate>
      <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
      <grossProceeds>591380.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>SCOT JARVIS</name>
        <address>
          <com:street1>1 Chisholm Trail</com:street1>
          <com:street2>Suite 300</com:street2>
          <com:city>Round Rock</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78681</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <saleDate>02/12/2026</saleDate>
      <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
      <grossProceeds>442000.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>SCOT JARVIS</name>
        <address>
          <com:street1>1 Chisholm Trail</com:street1>
          <com:street2>Suite 300</com:street2>
          <com:city>Round Rock</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78681</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <saleDate>02/26/2026</saleDate>
      <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
      <grossProceeds>440018.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>SCOT JARVIS</name>
        <address>
          <com:street1>1 Chisholm Trail</com:street1>
          <com:street2>Suite 300</com:street2>
          <com:city>Round Rock</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78681</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <saleDate>03/12/2026</saleDate>
      <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
      <grossProceeds>443000.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>SCOT JARVIS</name>
        <address>
          <com:street1>1 Chisholm Trail</com:street1>
          <com:street2>Suite 300</com:street2>
          <com:city>Round Rock</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78681</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <saleDate>03/26/2026</saleDate>
      <amountOfSecuritiesSold>5000</amountOfSecuritiesSold>
      <grossProceeds>390700.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>04/16/2026</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>09/15/2025</planAdoptionDate>
      </planAdoptionDates>
      <signature>SCOT B JARVIS</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
