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                    <ccc>XXXXXXXX</ccc>
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            <liveTestFlag>LIVE</liveTestFlag>



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            <issuerCik>0001069258</issuerCik>
            <issuerName>KRATOS DEFENSE &amp; SECURITY SOLUTIONS, INC.</issuerName>
            <secFileNumber>001-34460</secFileNumber>
            <issuerAddress>
                <ns2:street1>1 Chisholm Trail</ns2:street1>
                <ns2:street2>Suite 300</ns2:street2>
                <ns2:city>Round Rock</ns2:city>
                <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                <ns2:zipCode>78681</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(512) 238-9840</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>DAVID CARTER</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</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>4000</noOfUnitsSold>
            <aggregateMarketValue>131518.80</aggregateMarketValue>
            <noOfUnitsOutstanding>151073886</noOfUnitsOutstanding>
            <approxSaleDate>02/03/2025</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/03/2016</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>342</amountOfSecuritiesAcquired>
            <paymentDate>01/03/2016</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/04/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>535</amountOfSecuritiesAcquired>
            <paymentDate>03/04/2021</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>02/28/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2950</amountOfSecuritiesAcquired>
            <paymentDate>02/28/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>01/04/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>173</amountOfSecuritiesAcquired>
            <paymentDate>01/04/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>DAVID CARTER</name>
                <address>
                    <ns2:street1>1 Chisholm Trail</ns2:street1>
                    <ns2:street2>Suite 300</ns2:street2>
                    <ns2:city>Round Rock</ns2:city>
                    <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                    <ns2:zipCode>78681</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>01/02/2025</saleDate>
            <amountOfSecuritiesSold>655</amountOfSecuritiesSold>
            <grossProceeds>17349.71</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>DAVID CARTER</name>
                <address>
                    <ns2:street1>1 Chisholm Trail</ns2:street1>
                    <ns2:street2>Suite 300</ns2:street2>
                    <ns2:city>Round Rock</ns2:city>
                    <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                    <ns2:zipCode>78681</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>01/02/2025</saleDate>
            <amountOfSecuritiesSold>1757</amountOfSecuritiesSold>
            <grossProceeds>46539.59</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>DAVID CARTER</name>
                <address>
                    <ns2:street1>1 Chisholm Trail</ns2:street1>
                    <ns2:street2>Suite 300</ns2:street2>
                    <ns2:city>Round Rock</ns2:city>
                    <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                    <ns2:zipCode>78681</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>01/02/2025</saleDate>
            <amountOfSecuritiesSold>1588</amountOfSecuritiesSold>
            <grossProceeds>42063.10</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>DAVID CARTER</name>
                <address>
                    <ns2:street1>1 Chisholm Trail</ns2:street1>
                    <ns2:street2>Suite 300</ns2:street2>
                    <ns2:city>Round Rock</ns2:city>
                    <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                    <ns2:zipCode>78681</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>12/02/2024</saleDate>
            <amountOfSecuritiesSold>970</amountOfSecuritiesSold>
            <grossProceeds>25924.61</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>DAVID CARTER</name>
                <address>
                    <ns2:street1>1 Chisholm Trail</ns2:street1>
                    <ns2:street2>Suite 300</ns2:street2>
                    <ns2:city>Round Rock</ns2:city>
                    <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                    <ns2:zipCode>78681</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>12/02/2024</saleDate>
            <amountOfSecuritiesSold>3030</amountOfSecuritiesSold>
            <grossProceeds>80980.99</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>02/03/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>05/20/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ David Michael Carter</signature>
        </noticeSignature>
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144
0001509412
XXXXXXXX
LIVE
0001069258
KRATOS DEFENSE & SECURITY SOLUTIONS, INC.
001-34460
1 Chisholm Trail
Suite 300
Round Rock
TX
78681
(512) 238-9840
DAVID CARTER
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
4000
131518.80
151073886
02/03/2025
NASDAQ
Common
01/03/2016
Restricted Stock
ISSUER
N
342
01/03/2016
Not Applicable
Common
03/04/2021
Performance Shares
ISSUER
N
535
03/04/2021
Not Applicable
Common
02/28/2022
Performance Shares
ISSUER
N
2950
02/28/2022
Not Applicable
Common
01/04/2022
Performance Shares
ISSUER
N
173
01/04/2022
Not Applicable
N
DAVID CARTER
1 Chisholm Trail
Suite 300
Round Rock
TX
78681
Common
01/02/2025
655
17349.71
DAVID CARTER
1 Chisholm Trail
Suite 300
Round Rock
TX
78681
Common
01/02/2025
1757
46539.59
DAVID CARTER
1 Chisholm Trail
Suite 300
Round Rock
TX
78681
Common
01/02/2025
1588
42063.10
DAVID CARTER
1 Chisholm Trail
Suite 300
Round Rock
TX
78681
Common
12/02/2024
970
25924.61
DAVID CARTER
1 Chisholm Trail
Suite 300
Round Rock
TX
78681
Common
12/02/2024
3030
80980.99
02/03/2025
05/20/2024
/s/ David Michael Carter