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            <liveTestFlag>LIVE</liveTestFlag>



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            <issuerName>MACOM Technology Solutions Holdings, Inc.</issuerName>
            <secFileNumber>001-35451</secFileNumber>
            <issuerAddress>
                <ns2:street1>100 Chelmsford Street</ns2:street1>
                <ns2:city>Lowell</ns2:city>
                <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                <ns2:zipCode>01851</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>9786562500</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>STEPHEN DALY</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
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        <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>28383</noOfUnitsSold>
            <aggregateMarketValue>3103113.39</aggregateMarketValue>
            <noOfUnitsOutstanding>72191208</noOfUnitsOutstanding>
            <approxSaleDate>08/30/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>10/27/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
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            <amountOfSecuritiesAcquired>4742</amountOfSecuritiesAcquired>
            <paymentDate>10/27/2023</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
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            <amountOfSecuritiesAcquired>2629</amountOfSecuritiesAcquired>
            <paymentDate>10/28/2023</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
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        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>05/16/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock Units</natureOfAcquisitionTransaction>
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            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>9062</amountOfSecuritiesAcquired>
            <paymentDate>05/16/2024</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
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        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>11/17/2022</acquiredDate>
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            <amountOfSecuritiesAcquired>2326</amountOfSecuritiesAcquired>
            <paymentDate>11/17/2022</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
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        <securitiesToBeSold>
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            <amountOfSecuritiesAcquired>9624</amountOfSecuritiesAcquired>
            <paymentDate>05/16/2023</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>08/30/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>05/31/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Stephen Gerard Daly</signature>
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144
0001330184
XXXXXXXX
LIVE
0001493594
MACOM Technology Solutions Holdings, Inc.
001-35451
100 Chelmsford Street
Lowell
MA
01851
9786562500
STEPHEN DALY
Director
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
28383
3103113.39
72191208
08/30/2024
NASDAQ
Common
10/27/2023
Restricted Stock Units
Issuer
N
4742
10/27/2023
N/A
Common
10/28/2023
Restricted Stock Units
Issuer
N
2629
10/28/2023
N/A
Common
05/16/2024
Restricted Stock Units
Issuer
N
9062
05/16/2024
N/A
Common
11/17/2022
Restricted Stock Units
Issuer
N
2326
11/17/2022
N/A
Common
05/16/2023
Restricted Stock Units
Issuer
N
9624
05/16/2023
N/A
Y
08/30/2024
05/31/2024
/s/ Stephen Gerard Daly