<SEC-DOCUMENT>0001020066-25-000011.txt : 20250212
<SEC-HEADER>0001020066-25-000011.hdr.sgml : 20250212
<ACCEPTANCE-DATETIME>20250212111541
ACCESSION NUMBER:		0001020066-25-000011
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20250212
DATE AS OF CHANGE:		20250212

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:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-60261
		FILM NUMBER:		25613211

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SANDS CAPITAL MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001020066
		ORGANIZATION NAME:           	
		IRS NUMBER:				202830751
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		SANDS CAPITAL MANAGEMENT, LLC
		STREET 2:		1000 WILSON BLVD, SUITE 3000
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22209
		BUSINESS PHONE:		703-562-4000

	MAIL ADDRESS:	
		STREET 1:		SANDS CAPITAL MANAGEMENT, LLC
		STREET 2:		1000 WILSON BLVD, SUITE 3000
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22209

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SANDS CAPITAL MANAGEMENT, LP
		DATE OF NAME CHANGE:	20051024

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SANDS CAPITAL MANAGEMENT
		DATE OF NAME CHANGE:	20050804

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SANDS CAPITAL MANAGEMENT INC
		DATE OF NAME CHANGE:	19990317
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G/A</submissionType>
    <previousAccessionNumber>0000908834-24-000065</previousAccessionNumber>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001020066</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>1</amendmentNo>
      <securitiesClassTitle>Common Stock, par value $0.01 per share</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>12/31/2024</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001101302</issuerCik>
        <issuerName>ENTEGRIS INC</issuerName>
        <issuerCusip>29362U104</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>129 CONCORD ROAD</com:street1>
          <com:street2>129 CONCORD ROAD</com:street2>
          <com:city>BILLERICA</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>01821</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>SANDS CAPITAL MANAGEMENT, LLC</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>5222370.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>7214073.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>7214073.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>4.8</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>SANDS FRANK M.</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>5222370.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>7214073.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>7214073.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>4.8</classPercent>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
      <typeOfReportingPerson>HC</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>ENTEGRIS INC</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>129 CONCORD ROAD, 129 CONCORD ROAD, BILLERICA, MASSACHUSETTS, 01821.</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>This Schedule 13G is being filed jointly by Sands Capital Management, LLC ("SCM") and Frank
M. Sands ("Sands"). Sands holds ultimate voting and investment power over securities held by SCM.
</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>The principal business address of each of SCM and Sands is 1000 Wilson Blvd., Suite 3000, Arlington, VA 22209.</principalBusinessOfficeOrResidenceAddress>
        <citizenship>Sands Capital Management, LLC is organized under the laws of the State of Delaware. Sands is a citizen of the United States.</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
        <typeOfPersonFiling>HC</typeOfPersonFiling>
      </item3>
      <item4>
        <amountBeneficiallyOwned>See rows 5 through 11 of cover pages.</amountBeneficiallyOwned>
        <classPercent>See rows 5 through 11 of cover pages.</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>See rows 5 through 11 of cover pages.</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>See rows 5 through 11 of cover pages.</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>See rows 5 through 11 of cover pages.</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>See rows 5 through 11 of cover pages.</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <classOwnership5PercentOrLess>Y</classOwnership5PercentOrLess>
      </item5>
      <item6>
        <notApplicableFlag>N</notApplicableFlag>
        <ownershipMoreThan5PercentOnBehalfOfAnotherPerson>Securities reported on this Schedule 13G are held in the accounts of various clients of Sands Capital Management, LLC, which may include pension plans, endowments, foundations, mutual funds, charities, state and municipal government entities, Taft-Hartley plans, families, and individuals, among other types. Such clients have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein. No such client's interest in the class of securities reported herein is more than 5%.</ownershipMoreThan5PercentOnBehalfOfAnotherPerson>
      </item6>
      <item7>
        <notApplicableFlag>N</notApplicableFlag>
        <subsidiaryIdentificationAndClassification>SCM is reporting hereunder as an investment adviser pursuant to Item 3(e) above. Sands is reporting hereunder as a control person pursuant to Item 3(g) above.</subsidiaryIdentificationAndClassification>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>N</notApplicableFlag>
        <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under &amp;#167; 240.14a-11.

</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>SANDS CAPITAL MANAGEMENT, LLC</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Alexandra Fulk</signature>
        <title>Alexandra R. Fulk, Chief Compliance Officer, Senior Counsel</title>
        <date>02/12/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>SANDS FRANK M.</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Frank M. Sands</signature>
        <title>Frank M. Sands</title>
        <date>02/12/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>

</edgarSubmission>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1
<SEQUENCE>2
<FILENAME>jointfilingstatement.htm
<DESCRIPTION>EXHIBIT 1
<TEXT>
<HTML>
<HEAD>
<TITLE></TITLE>
</HEAD>
<BODY>
<DIV><P align=right style='font:11pt Times New Roman;margin:0'> &nbsp;</P>
<HR style='border:0;height:0;width:0;margin:12pt 0 0 0'><P align=right style='font:11pt Times New Roman;margin:0'>EXHIBIT 1</P>
<P align=right style='font:11pt Times New Roman;margin:0'>to</P>
<P align=right style='font:11pt Times New Roman;margin:0'>SCHEDULE 13G</P>
<P align=right style='font:11pt Times New Roman;margin:0'>&nbsp;</P>
<P align=center style='font:11pt Times New Roman;margin:0'>JOINT ACQUISITION STATEMENT</P>
<P align=center style='font:11pt Times New Roman;margin:0'><FONT style='border-bottom:1px solid #000000'>PURSUANT TO SECTION 240.13d-1(k)</FONT></P>
<P align=right style='font:11pt Times New Roman;margin:0'>&nbsp;</P>
<P align=justify style='font:11pt Times New Roman;margin:0'>The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint acquisition statements. &nbsp;The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him, her or it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the other entities or persons, except to the extent that he, she or it knows or has reason to believe that such information is inaccurate.</P>
<P style='font:11pt Times New Roman;margin:0'>&nbsp;</P>
<P style='font:11pt Times New Roman;margin:0'>Dated: &nbsp;February 12, 2025</P>
<P style='font:12pt Times New Roman;margin:0'>&nbsp;</P>
<TABLE style=border-collapse:collapse;width:99.82%><TR><TD valign=top style=width:216.9pt><P align=justify style='font:12pt Times New Roman;margin:0'>&nbsp;</P>
</TD><TD valign=top style='width:261pt;border-bottom:0.5pt solid #000000'><P align=justify style='font:12pt Times New Roman;margin:0;color:#000000'>/s/ Alexandra R. Fulk</P>
</TD></TR>
<TR><TD valign=top style=width:216.9pt><P align=justify style='font:12pt Times New Roman;margin:0'>&nbsp;</P>
</TD><TD valign=top style=width:261pt><P align=justify style='font:12pt Times New Roman;margin:0'>Sands Capital Management, LLC</P>
</TD></TR>
<TR><TD valign=top style=width:216.9pt><P align=justify style='font:12pt Times New Roman;margin:0'>&nbsp;</P>
</TD><TD valign=top style=width:261pt><P align=justify style='font:12pt Times New Roman;margin:0'>By: Alexandra R. Fulk, Chief Compliance Officer, Senior Counsel</P>
</TD></TR>
<TR><TD valign=top style=width:216.9pt><P align=justify style='font:12pt Times New Roman;margin:0'>&nbsp;</P>
</TD><TD valign=top style=width:261pt><P align=justify style='font:12pt Times New Roman;margin:0'>&nbsp;</P>
</TD></TR>
<TR><TD valign=top style=width:216.9pt><P align=justify style='font:12pt Times New Roman;margin:0'>&nbsp;</P>
</TD><TD valign=top style='width:261pt;border-bottom:0.5pt solid #000000'><P align=justify style='font:12pt Times New Roman;margin:0;color:#000000'>/s/ Frank M. Sands</P>
</TD></TR>
<TR style=height:12.55pt><TD valign=top style=width:216.9pt><P align=justify style='font:12pt Times New Roman;margin:0'>&nbsp;</P>
</TD><TD valign=top style='width:261pt;border-top:0.5pt solid #000000'><P align=justify style='font:12pt Times New Roman;margin:0'>Name: Frank M. Sands</P>
</TD></TR>
</TABLE>
<P style='font:14pt Times New Roman;margin:0'>&nbsp;</P>
<P style='font:12pt Times New Roman;margin:0'>&nbsp;</P>
<P style='font:12pt Times New Roman;margin:0'>&nbsp;</P>
</DIV>
</BODY>
</HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
