<SEC-DOCUMENT>0001628280-17-009109.txt : 20170906
<SEC-HEADER>0001628280-17-009109.hdr.sgml : 20170906
<ACCEPTANCE-DATETIME>20170906201711
ACCESSION NUMBER:		0001628280-17-009109
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170903
FILED AS OF DATE:		20170906
DATE AS OF CHANGE:		20170906

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lorig Brian
		CENTRAL INDEX KEY:			0001697041

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-09992
		FILM NUMBER:		171072539

	MAIL ADDRESS:	
		STREET 1:		ONE TECHNOLOGY DRIVE
		CITY:			MILPITAS
		STATE:			X1
		ZIP:			95035

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KLA TENCOR CORP
		CENTRAL INDEX KEY:			0000319201
		STANDARD INDUSTRIAL CLASSIFICATION:	OPTICAL INSTRUMENTS & LENSES [3827]
		IRS NUMBER:				042564110
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		ONE TECHNOLOGY DRIVE
		CITY:			MILPITAS
		STATE:			CA
		ZIP:			95035
		BUSINESS PHONE:		4088756000

	MAIL ADDRESS:	
		STREET 1:		ONE TECHNOLOGY DRIVE
		CITY:			MILPITAS
		STATE:			CA
		ZIP:			95035

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KLA INSTRUMENTS CORP
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">On September 3, 2015, the Reporting Person received a grant of restricted stock units (&quot;RSUs&quot;) covering 2,647 shares of KLA-Tencor common stock. On September 3, 2017, the Reporting Person vested in twenty-five percent (25%) of such RSUs.</footnote>
        <footnote id="F2">Pursuant to the terms of the grant, shares of KLA-Tencor common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA-Tencor common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA-Tencor common stock as reported on September 1, 2017.</footnote>
        <footnote id="F3">On September 4, 2013, the Reporting Person received a grant of performance-based RSUs that was determined by the Compensation Committee of KLA-Tencor's Board of directors to cover 3,056 shares of KLA-Tencor common stock. On September 4, 2017, the Reporting Person vested in fifty percent (50%) of such performance-based RSUs.</footnote>
        <footnote id="F4">On September 4, 2013, the Reporting Person received a grant of restricted stock units (&quot;RSUs&quot;) covering 2,445 shares of KLA-Tencor common stock. On September 4, 2017, the Reporting Person vested in twenty-five percent (25%) of such RSUs.</footnote>
        <footnote id="F5">On September 4, 2014, the Reporting Person received a grant of restricted stock units (&quot;RSUs&quot;) covering 2,200 shares of KLA-Tencor common stock. On September 4, 2017, the Reporting Person vested in twenty-five percent (25%) of such RSUs.</footnote>
        <footnote id="F6">Each restricted stock unit (&quot;RSU&quot;) represents a contingent right to receive one share of KLA-Tencor common stock.</footnote>
        <footnote id="F7">On September 4, 2014, in addition to the RSUs granted on that date that were subject only to service-vesting requirements (which RSUs were previously reported on Form 4), the Reporting Person was also granted RSUs covering up to a maximum of 2,750 shares (based on 125% of the target shares of 2,200) of KLA-Tencor common stock, subject to both performance-vesting and service-vesting requirements. On August 31, 2017 the Compensation Committee of KLA-Tencor's Board of Directors determined the level at which the corporate performance goals were attained and, based on the assessment, determined that the number of shares subject to the RSUs is 2,574.</footnote>
        <footnote id="F8">Does not include performance-based RSUs, if any, held by the Reporting Person for which an assessment has not yet been made regarding the achievement of the applicable performance goals.  Any such holdings will be reported on a Form 4 within two business days of the date such assessment is made.  Reflects the vesting of awards reflected above.</footnote>
        <footnote id="F9">The Reporting Person vested fifty percent (50%) of the performance-based RSUs on September 4, 2017 and will vest in the remaining fifty percent (50%) upon his completion of four years of service following the grant date of the award (September 4, 2014). The shares of common stock will be issued as the performance-based RSUs vest.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Teri A. Little, attorney-in-fact for Brian Lorig</signatureName>
        <signatureDate>2017-09-06</signatureDate>
    </ownerSignature>
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</SEC-DOCUMENT>
