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            <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>(978) 656-2500</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>ROBERT B DENNEHY</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
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        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>E*TRADE FINANCIAL CORPORATION</name>
                <address>
                    <ns2:street1>3 EDISON DRIVE</ns2:street1>
                    <ns2:city>ALPHARETTA</ns2:city>
                    <ns2:stateOrCountry>GA</ns2:stateOrCountry>
                    <ns2:zipCode>30005</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>3206</noOfUnitsSold>
            <aggregateMarketValue>241441.94</aggregateMarketValue>
            <noOfUnitsOutstanding>70987756</noOfUnitsOutstanding>
            <approxSaleDate>08/16/2023</approxSaleDate>
            <securitiesExchangeName>NASD</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>11/04/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3206</amountOfSecuritiesAcquired>
            <paymentDate>11/04/2021</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
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                <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>07/19/2023</saleDate>
            <amountOfSecuritiesSold>3250</amountOfSecuritiesSold>
            <grossProceeds>213852.28</grossProceeds>
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        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>ROBERT B DENNEHY</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>06/21/2023</saleDate>
            <amountOfSecuritiesSold>3250</amountOfSecuritiesSold>
            <grossProceeds>198472.63</grossProceeds>
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                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>01851</ns2:zipCode>
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            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/18/2023</saleDate>
            <amountOfSecuritiesSold>3250</amountOfSecuritiesSold>
            <grossProceeds>194675.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>08/16/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>11/23/2022</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Robert Dennehy</signature>
        </noticeSignature>
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144
0001588004
XXXXXXXX
LIVE
0001493594
MACOM Technology Solutions Holdings, Inc.
001-35451
100 CHELMSFORD STREET
LOWELL
MA
01851
(978) 656-2500
ROBERT B DENNEHY
Officer
Common
E*TRADE FINANCIAL CORPORATION
3 EDISON DRIVE
ALPHARETTA
GA
30005
3206
241441.94
70987756
08/16/2023
NASD
COMMON
11/04/2021
Performance Shares
ISSUER
N
3206
11/04/2021
Not Applicable
N
ROBERT B DENNEHY
100 CHELMSFORD STREET
LOWELL
MA
01851
Common
07/19/2023
3250
213852.28
ROBERT B DENNEHY
100 CHELMSFORD STREET
LOWELL
MA
01851
Common
06/21/2023
3250
198472.63
ROBERT B DENNEHY
100 CHELMSFORD STREET
LOWELL
MA
01851
Common
05/18/2023
3250
194675.00
08/16/2023
11/23/2022
/s/ Robert Dennehy