    <SEC-DOCUMENT>0001140361-23-045530-index.html : 20230927
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    <ACCEPTANCE-DATETIME>20230927161828
    ACCESSION NUMBER:		0001140361-23-045530
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20230927
    DATE AS OF CHANGE:		20230927

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			LAM RESEARCH CORP
    		CENTRAL INDEX KEY:			0000707549
    		STANDARD INDUSTRIAL CLASSIFICATION:	SPECIAL INDUSTRY MACHINERY, NEC [3559]
    		IRS NUMBER:				942634797
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			0630

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-12933
    		FILM NUMBER:		231284955

    	BUSINESS ADDRESS:
    		STREET 1:		4650 CUSHING BLVD
    		CITY:			FREMONT
    		STATE:			CA
    		ZIP:			94538
    		BUSINESS PHONE:		5106590200

    	MAIL ADDRESS:
    		STREET 1:		4650 CUSHING PARKWAY
    		CITY:			FREMONT
    		STATE:			CA
    		ZIP:			94538
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    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>ny20009821x501_defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: ny20009821x501_defa14a.htm

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    <TEXT>
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    <SEQUENCE>3
    <FILENAME>ny20009821x501_pc02.jpg
    <TEXT>
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