<SEC-DOCUMENT>0001969223-24-000225.txt : 20240307
<SEC-HEADER>0001969223-24-000225.hdr.sgml : 20240307
<ACCEPTANCE-DATETIME>20240307144308
ACCESSION NUMBER:		0001969223-24-000225
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240307
DATE AS OF CHANGE:		20240307

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ENTEGRIS INC
		CENTRAL INDEX KEY:			0001101302
		STANDARD INDUSTRIAL CLASSIFICATION:	PLASTICS PRODUCTS, NEC [3089]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				411941551
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-32598
		FILM NUMBER:		24729628

	BUSINESS ADDRESS:	
		STREET 1:		129 CONCORD ROAD
		CITY:			BILLERICA
		STATE:			MA
		ZIP:			01821
		BUSINESS PHONE:		9784366500

	MAIL ADDRESS:	
		STREET 1:		129 CONCORD ROAD
		CITY:			BILLERICA
		STATE:			MA
		ZIP:			01821

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENTILCORE JAMES
		CENTRAL INDEX KEY:			0001217378
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		NINE HAMPSHIRE STREET
		CITY:			MANSFIELD
		STATE:			MA
		ZIP:			02048
</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>0001217378</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001101302</issuerCik>
      <issuerName>Entegris Inc.</issuerName>
      <secFileNumber>001-32598</secFileNumber>
      <issuerAddress>
        <com:street1>129 Concord Road</com:street1>
        <com:city>Billerica</com:city>
        <com:stateOrCountry>MA</com:stateOrCountry>
        <com:zipCode>01821</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>978-436-6500</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>James F. Gentilcore Tr - 1998 James F. Gentilcore ttee</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>UBS Financial Services Inc</name>
        <address>
          <com:street1>1000 Harbor Blvd</com:street1>
          <com:street2>3rd Floor</com:street2>
          <com:city>Weehawken</com:city>
          <com:stateOrCountry>NJ</com:stateOrCountry>
          <com:zipCode>07086</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>2567</noOfUnitsSold>
      <aggregateMarketValue>372289</aggregateMarketValue>
      <noOfUnitsOutstanding>150396000</noOfUnitsOutstanding>
      <approxSaleDate>03/07/2024</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>common</securitiesClassTitle>
      <acquiredDate>04/29/2021</acquiredDate>
      <natureOfAcquisitionTransaction>RSU's vested</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Entegris, Inc.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2567</amountOfSecuritiesAcquired>
      <paymentDate>04/29/2020</paymentDate>
      <natureOfPayment>RSU's, no payment made</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>03/07/2024</noticeDate>
      <signature>/s/ UBS Financial Services Inc, as attorney-in-fact for James F. Gentilcore Tr - 1998 James F. Gentilcore ttee</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
