<SEC-DOCUMENT>0001106191-16-000023.txt : 20160810
<SEC-HEADER>0001106191-16-000023.hdr.sgml : 20160810
<ACCEPTANCE-DATETIME>20160810213600
ACCESSION NUMBER:		0001106191-16-000023
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160809
FILED AS OF DATE:		20160810
DATE AS OF CHANGE:		20160810

ISSUER:		

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

	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:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GMT CAPITAL CORP
		CENTRAL INDEX KEY:			0001106191

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32598
		FILM NUMBER:		161822816

	BUSINESS ADDRESS:	
		STREET 1:		GMT CAPITAL CORP
		STREET 2:		2300 WINDY RIDGE PARKWAY SUITE 550 SOUTH
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30339
		BUSINESS PHONE:		7709898250

	MAIL ADDRESS:	
		STREET 1:		GMT CAPITAL CORP
		STREET 2:		2300 WINDY RIDGE PARKWAY SUITE 550 SOUTH
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30339
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-08-09</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001101302</issuerCik>
        <issuerName>ENTEGRIS INC</issuerName>
        <issuerTradingSymbol>ENTG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001106191</rptOwnerCik>
            <rptOwnerName>GMT CAPITAL CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>GMT CAPITAL CORP</rptOwnerStreet1>
            <rptOwnerStreet2>2300 WINDY RIDGE PARKWAY SUITE 550 SOUTH</rptOwnerStreet2>
            <rptOwnerCity>ATLANTA</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30339</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>COMMON</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2016-08-09</value>
                <footnoteId id="F2"/>
            </transactionDate>
            <deemedExecutionDate>
                <footnoteId id="F3"/>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
                <footnoteId id="F4"/>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>123900</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.8</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14401510</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 is being jointly filed by Bay Resource Partners, L.P., a Delaware limited partnership (Bay), Bay II Resource Partners, L.P., a Delaware limited partnership (Bay II), Bay Resource Partners Offshore Master Fund, L.P., an exempted limited partnership organized under the laws of the Cayman Islands (Offshore Fund), GMT Capital Corp., a Georgia corporation (GMT Capital), and Thomas E. Claugus, a United States citizen (Claugus).  The foregoing persons are hereinafter sometimes collectively referred to as the Reporting Persons.</footnote>
        <footnote id="F2">GMT Capital, the general partner of Bay and Bay II, has the power to direct the affairs of Bay and Bay II, including the voting and disposition of shares. As the discretionary investment manager of the Offshore Fund and certain other accounts, GMT Capital has power to direct the voting and disposition of shares held by the Offshore Fund and such accounts. Mr. Claugus is the President of GMT Capital and in that capacity directs the operations of each of Bay and Bay II and the voting and disposition of shares held by the Offshore Fund and separate client accounts managed by GMT Capital.  GMT Capital and Mr. Claugus may be deemed to beneficially own indirect pecuniary interest as the result of performance-based fees and profit allocations. Each of GMT Capital and Mr. Claugus disclaims such beneficial ownership except to the extent ultimately realized.</footnote>
        <footnote id="F3">The aggregate number of shares of common stock sold was 123,900 shares and such shares were sold by the Reporting Persons in the following amounts:  Bay = 18,900 shares; Bay II = 34,300 shares; Offshore Fund = 64,300 shares; GMT Capital = 2,500 shares; Claugus = 3,900 shares.</footnote>
        <footnote id="F4">14,401,510 shares of common stock is the aggregate number of shares of common stock owned by the Reporting Persons and is owned as follows:  Bay = 2,195,800 shares directly owned by it; Bay II = 3,985,200 shares directly owned by it; Offshore Fund = 7,477,200 shares directly owned by it; GMT Capital = 294,610 shares of common stock beneficially owned by it with respect to separate client accounts managed by it; Claugus = 448,700 shares directly owned by him.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/S/ Philip J. Meyers</signatureName>
        <signatureDate>2016-08-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
