LAM RESEARCH CORP (LRCX) Institutional Ownership Changes & 13F Activity

LAM RESEARCH CORP (LRCX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Polen Capital Management, Renaissance Technologies LLC, Parnassus Endeavor Fund, Third Point, and Appaloosa Management.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2018Appaloosa ManagementBuy84,4141,380,000$238,533
Q2 2018Parnassus Endeavor FundBuy50,00075,000$12,964
Q2 2018Olstein Capital ManagementBuy20,00020,000$3,457
Q1 2018Appaloosa ManagementBuy1,295,5861,295,586$263,211
Q4 2017Renaissance Technologies LLCSell-476,700203,756$37,505
Q3 2017Renaissance Technologies LLCBuy283,400680,456$125,912
Q3 2017Parnassus Endeavor FundSell-25,00025,000$4,626
Q2 2017Renaissance Technologies LLCBuy265,056397,056$56,156
Q2 2017Parnassus Endeavor FundSell-50,00050,000$7,072
Q1 2017Parnassus Endeavor FundSell-350,000100,000$12,836
Q1 2017Renaissance Technologies LLCSell-111,000132,000$16,944
Q4 2016Renaissance Technologies LLCSell-796,256243,000$25,692
Q4 2016Parnassus Endeavor FundSell-300,000450,000$47,579
Q3 2016Renaissance Technologies LLCBuy112,8001,039,256$98,428
Q2 2016Renaissance Technologies LLCBuy817,656926,456$77,878
Q2 2016Parnassus Endeavor FundBuy150,000750,000$63,045
Q1 2016Renaissance Technologies LLCSell-656,356108,800$8,987
Q1 2016Parnassus Endeavor FundBuy125,000600,000$49,560
Q4 2015Parnassus Endeavor FundBuy125,000475,000$37,725
Q4 2015Renaissance Technologies LLCSell-59,300765,156$60,769
Q3 2015Renaissance Technologies LLCBuy800,300824,456$53,862
Q3 2015Parnassus Endeavor FundBuy250,000350,000$22,866
Q2 2015Renaissance Technologies LLCSell-109,22424,156$1,965
Q2 2015Greenlight CapitalSell-18,3001,636,700$133,146
Q1 2015Greenlight CapitalSell-825,0001,655,000$116,238
Q1 2015Parnassus Endeavor FundSell-350,000100,000$7,024
Q4 2014Viking Global InvestorsBuy356,700356,700$28,301
Q4 2014Greenlight CapitalSell-160,0002,480,000$196,763
Q4 2014Renaissance Technologies LLCBuy23,824133,380$10,582
Q3 2014First Eagle U.S. ValueBuy644,215644,215$48,123

Frequently asked questions about LRCX activity

  • Which institutional owners are buying LRCX?

    Institutional owners buying LRCX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in LRCX activity?

    "Buy" means an investor increased their reported position in LRCX compared to the prior reporting period. This reflects growing exposure to LAM RESEARCH CORP (LRCX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in LRCX increasing?

    Institutional interest in LRCX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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