<SEC-DOCUMENT>0001628280-19-003611-index.html : 20190328
<SEC-HEADER>0001628280-19-003611.hdr.sgml : 20190328
<ACCEPTANCE-DATETIME>20190328191028
ACCESSION NUMBER:		0001628280-19-003611
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190322
FILED AS OF DATE:		20190328
DATE AS OF CHANGE:		20190328

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Steimberg Amichai
		CENTRAL INDEX KEY:			0001771362

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-09992
		FILM NUMBER:		19713441

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

	FORMER NAME:	
		FORMER CONFORMED NAME:	Steimberg Amichai Cannon
		DATE OF NAME CHANGE:	20190320

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>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>wf-form3_155381461247541.xml
<DESCRIPTION>FORM 3
<TEXT>
Document 1 - file: wf-form3_155381461247541.html

Document 1 - RAW XML: wf-form3_155381461247541.xml

</DOCUMENT>
</SEC-DOCUMENT>