<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001330184</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001493594</issuerCik>
            <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>
        </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>19395</noOfUnitsSold>
            <aggregateMarketValue>2673794.70</aggregateMarketValue>
            <noOfUnitsOutstanding>72191208</noOfUnitsOutstanding>
            <approxSaleDate>11/11/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>11/09/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>19395</amountOfSecuritiesAcquired>
            <paymentDate>11/09/2023</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for STEPHEN DALY</name>
                <address>
                    <ns2:street1>100 Chelmsford Street</ns2:street1>
                    <ns2:city>Lowell</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01851</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>10/31/2024</saleDate>
            <amountOfSecuritiesSold>7122</amountOfSecuritiesSold>
            <grossProceeds>801386.67</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for STEPHEN DALY</name>
                <address>
                    <ns2:street1>100 Chelmsford Street</ns2:street1>
                    <ns2:city>Lowell</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01851</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>10/29/2024</saleDate>
            <amountOfSecuritiesSold>2629</amountOfSecuritiesSold>
            <grossProceeds>313960.70</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for STEPHEN DALY</name>
                <address>
                    <ns2:street1>100 Chelmsford Street</ns2:street1>
                    <ns2:city>Lowell</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01851</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>10/28/2024</saleDate>
            <amountOfSecuritiesSold>4742</amountOfSecuritiesSold>
            <grossProceeds>561096.99</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for STEPHEN DALY</name>
                <address>
                    <ns2:street1>100 Chelmsford Street</ns2:street1>
                    <ns2:city>Lowell</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01851</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>08/30/2024</saleDate>
            <amountOfSecuritiesSold>21012</amountOfSecuritiesSold>
            <grossProceeds>2298640.79</grossProceeds>
        </securitiesSoldInPast3Months>
        <remarks>Sales that were executed on November 11, 2024 are being reported on this Form 144 filed on November 12, 2024 given the EDGAR system was not accepting filings November 11, 2024 in observance of the federal holiday. </remarks>
        <noticeSignature>
            <noticeDate>11/11/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>05/31/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Stephen Daly</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
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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
19395
2673794.70
72191208
11/11/2024
NASDAQ
Common
11/09/2023
Performance Stock Units
Issuer
N
19395
11/09/2023
N/A
N
10b5-1 Sales for STEPHEN DALY
100 Chelmsford Street
Lowell
MA
01851
Common
10/31/2024
7122
801386.67
10b5-1 Sales for STEPHEN DALY
100 Chelmsford Street
Lowell
MA
01851
Common
10/29/2024
2629
313960.70
10b5-1 Sales for STEPHEN DALY
100 Chelmsford Street
Lowell
MA
01851
Common
10/28/2024
4742
561096.99
10b5-1 Sales for STEPHEN DALY
100 Chelmsford Street
Lowell
MA
01851
Common
08/30/2024
21012
2298640.79
Sales that were executed on November 11, 2024 are being reported on this Form 144 filed on November 12, 2024 given the EDGAR system was not accepting filings November 11, 2024 in observance of the federal holiday.
11/11/2024
05/31/2024
/s/ Stephen Daly