content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <!-- Field: Pseudo-Tag; ID: Name; Data: OEP SKNA, L.P. -->
            <cik>0001829449</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000866291</issuerCik>
        <issuerName>ALLEGRO MICROSYSTEMS, INC.</issuerName>
        <secFileNumber>001-39675</secFileNumber>
        <issuerAddress>
          <com:street1>955 Perimeter Road</com:street1>
          <com:city>Manchester</com:city>
          <com:stateOrCountry>NH</com:stateOrCountry>
          <com:zipCode>03103</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>603-626-2300</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>OEP SKNA, L.P.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Stockholder</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Barclays Capital Inc.</name>
          <address>
            <com:street1>745 Seventh Avenue</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10019</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>3000000</noOfUnitsSold>
        <aggregateMarketValue>93000000.00</aggregateMarketValue>
        <noOfUnitsOutstanding>193125832</noOfUnitsOutstanding>
        <approxSaleDate>02/27/2024</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>10/29/2020</acquiredDate>
        <natureOfAcquisitionTransaction>Acquired upon conversion for no additional consideration of Class A Common Stock</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Acquired directly from issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>45567898</amountOfSecuritiesAcquired>
        <paymentDate>10/03/2017</paymentDate>
        <natureOfPayment>Cash purchase</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>OEP SKNA, L.P.</name>
          <address>
            <com:street1>c/o One Equity Partners</com:street1>
            <com:street2>510 Madison Avenue, 19th Floor</com:street2>
            <com:city>New York,</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10022</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <saleDate>02/15/2024</saleDate>
        <amountOfSecuritiesSold>2850000</amountOfSecuritiesSold>
        <grossProceeds>86925000.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>02/27/2024</noticeDate>
        <signature>/s/ Richard Cashin</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3561}]
text: 144
  0001829449
  XXXXXXXX
  LIVE
  0000866291
  ALLEGRO MICROSYSTEMS, INC.
  001-39675
  955 Perimeter Road
  Manchester
  NH
  03103
  603-626-2300
  OEP SKNA, L.P.
  Stockholder
  Common Stock
  Barclays Capital Inc.
  745 Seventh Avenue
  New York
  NY
  10019
  3000000
  93000000.00
  193125832
  02/27/2024
  NASDAQ
  Common Stock
  10/29/2020
  Acquired upon conversion for no additional consideration of Class A Common Stock
  Acquired directly from issuer
  N
  45567898
  10/03/2017
  Cash purchase
  N
  OEP SKNA, L.P.
  c/o One Equity Partners
  510 Madison Avenue, 19th Floor
  New York,
  NY
  10022
  Common Stock
  02/15/2024
  2850000
  86925000.00
  02/27/2024
  /s/ Richard Cashin