<SEC-DOCUMENT>0001971857-23-000564.txt : 20230823
<SEC-HEADER>0001971857-23-000564.hdr.sgml : 20230823
<ACCEPTANCE-DATETIME>20230823130647
ACCESSION NUMBER:		0001971857-23-000564
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230823
DATE AS OF CHANGE:		20230823

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALLEGRO MICROSYSTEMS, INC.
		CENTRAL INDEX KEY:			0000866291
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				462405937
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-39675
		FILM NUMBER:		231196504

	BUSINESS ADDRESS:	
		STREET 1:		955 PERIMETER ROAD
		CITY:			MANCHESTER
		STATE:			NH
		ZIP:			03103
		BUSINESS PHONE:		(603) 626-2300

	MAIL ADDRESS:	
		STREET 1:		955 PERIMETER ROAD
		CITY:			MANCHESTER
		STATE:			NH
		ZIP:			03103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLEGRO MICROSYSTEMS INC
		DATE OF NAME CHANGE:	19900730

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MARTIN JOSEPH R
		CENTRAL INDEX KEY:			0001195846

	FILING VALUES:
		FORM TYPE:		144
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?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>
          <cik>0001195846</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>MARTIN JOSEPH R</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Affiliate</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Merrill Lynch</name>
        <address>
          <com:street1>2049 Century Park East</com:street1>
          <com:street2>Suite 1200</com:street2>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90067</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>17000</noOfUnitsSold>
      <aggregateMarketValue>653206.49</aggregateMarketValue>
      <noOfUnitsOutstanding>192376420</noOfUnitsOutstanding>
      <approxSaleDate>08/23/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>10/03/2017</acquiredDate>
      <natureOfAcquisitionTransaction>Grant</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>17000</amountOfSecuritiesAcquired>
      <paymentDate>10/03/2017</paymentDate>
      <natureOfPayment>NA</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>08/23/2023</noticeDate>
      <signature>Joseph Martin</signature>
    </noticeSignature>
  </formData>
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</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
