<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<headerData>
<submissionType>144</submissionType>
<filerInfo>
<filer>
<filerCredentials>
<cik>0001252243</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>
<street1 xmlns="http://www.sec.gov/edgar/common">100 CHELMSFORD STREET</street1>
<city xmlns="http://www.sec.gov/edgar/common">LOWELL</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">MA</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">01851</zipCode>
</issuerAddress>
<issuerContactPhone>(978)-656-2500</issuerContactPhone>
<nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>OCAMPO SUSAN</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
<relationshipsToIssuer>
<relationshipToIssuer>Owner</relationshipToIssuer>
</relationshipsToIssuer>
</issuerInfo>
<securitiesInformation>
<securitiesClassTitle>Common</securitiesClassTitle>
<brokerOrMarketmakerDetails>
<name>The Charles Schwab Corporation</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">3000 Schwab Way</street1>
<city xmlns="http://www.sec.gov/edgar/common">Westlake</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">TX</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">76262</zipCode>
</address>
</brokerOrMarketmakerDetails>
<noOfUnitsSold>200000</noOfUnitsSold>
<aggregateMarketValue>50539095</aggregateMarketValue>
<noOfUnitsOutstanding>75011970</noOfUnitsOutstanding>
<approxSaleDate>03/02/2026</approxSaleDate>
<securitiesExchangeName>NASDAQ</securitiesExchangeName>
</securitiesInformation>
<securitiesToBeSold>
<securitiesClassTitle>Common</securitiesClassTitle>
<acquiredDate>11/21/2023</acquiredDate>
<natureOfAcquisitionTransaction>Founder Shares</natureOfAcquisitionTransaction>
<nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
<isGiftTransaction>N</isGiftTransaction>
<amountOfSecuritiesAcquired>200000</amountOfSecuritiesAcquired>
<paymentDate>11/21/2023</paymentDate>
<natureOfPayment>N/A</natureOfPayment>
</securitiesToBeSold>
<nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>12/02/2025</saleDate>
<amountOfSecuritiesSold>4171</amountOfSecuritiesSold>
<grossProceeds>750780.00</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>12/03/2025</saleDate>
<amountOfSecuritiesSold>95829</amountOfSecuritiesSold>
<grossProceeds>17255136.70</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>12/04/2025</saleDate>
<amountOfSecuritiesSold>2291</amountOfSecuritiesSold>
<grossProceeds>435290</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>12/05/2025</saleDate>
<amountOfSecuritiesSold>76642</amountOfSecuritiesSold>
<grossProceeds>14569250</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>12/09/2025</saleDate>
<amountOfSecuritiesSold>121067</amountOfSecuritiesSold>
<grossProceeds>23011418</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>02/03/2026</saleDate>
<amountOfSecuritiesSold>100000</amountOfSecuritiesSold>
<grossProceeds>23029116</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>02/06/2026</saleDate>
<amountOfSecuritiesSold>100000</amountOfSecuritiesSold>
<grossProceeds>23584697</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>02/12/2026</saleDate>
<amountOfSecuritiesSold>57827</amountOfSecuritiesSold>
<grossProceeds>13897141</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>02/13/2026</saleDate>
<amountOfSecuritiesSold>42173</amountOfSecuritiesSold>
<grossProceeds>10136319</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>02/13/2026</saleDate>
<amountOfSecuritiesSold>19877</amountOfSecuritiesSold>
<grossProceeds>4870489</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>02/17/2026</saleDate>
<amountOfSecuritiesSold>80123</amountOfSecuritiesSold>
<grossProceeds>19655435</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>02/18/2026</saleDate>
<amountOfSecuritiesSold>3156</amountOfSecuritiesSold>
<grossProceeds>789003</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>02/24/2026</saleDate>
<amountOfSecuritiesSold>53509</amountOfSecuritiesSold>
<grossProceeds>13381379</grossProceeds>
</securitiesSoldInPast3Months>
<securitiesSoldInPast3Months>
<sellerDetails>
<name>Susan Ocampo</name>
<address>
<street1 xmlns="http://www.sec.gov/edgar/common">Box #88439</street1>
<city xmlns="http://www.sec.gov/edgar/common">Honolulu</city>
<stateOrCountry xmlns="http://www.sec.gov/edgar/common">HI</stateOrCountry>
<zipCode xmlns="http://www.sec.gov/edgar/common">96830</zipCode>
</address>
</sellerDetails>
<securitiesClassTitle>Common</securitiesClassTitle>
<saleDate>02/25/2026</saleDate>
<amountOfSecuritiesSold>261763</amountOfSecuritiesSold>
<grossProceeds>66600315</grossProceeds>
</securitiesSoldInPast3Months>
<remarks>Filing encompasses 1 Trust account in which Susan Ocampo is the TTEE. 4 WK average volume Feb 2nd Wk 1: 11,158,226  Feb 9th Wk 2:  6,540,143 Feb 17th Wk 3: 3,698,777 Feb 23rd Wk 4: 5,263,005 Total = 26,660,151 / 4 =  6,665,037 shares per week average</remarks>
<noticeSignature>
<noticeDate>03/02/2026</noticeDate>
<signature>/s/ Susan Ocampo</signature>
</noticeSignature>
</formData>
</edgarSubmission>
