LAM RESEARCH CORP (LRCX) Stock Institutional Trading Activity


LAM RESEARCH CORP (LRCX) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Tiger Global Management, Renaissance Technologies LLC, Triple Frond Partners, Appaloosa Management, and Parnassus Endeavor Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2024Parnassus Endeavor FundSell-5,75767,383$71,752,788
Q2 2024Appaloosa ManagementSell-6,000109,000$116,068,650
Q1 2024Triple Frond PartnersSell-9,53052,530$51,037
Q1 2024Sequoia Financial AdvisorsSell-9264,535$4,405,869
Q1 2024Parnassus Endeavor FundSell-50,37373,140$71,060,630
Q1 2024Appaloosa ManagementSell-3,000115,000$111,730,550
Q1 2024Tiger Global ManagementSell-49,800353,183$343,142,007
Q4 2023Renaissance Technologies LLCBuy46,200168,956$132,336
Q4 2023Sequoia Financial AdvisorsBuy8465,461$4,277,603
Q4 2023Hillman Value FundSell-229,063$7,098,685
Q4 2023Appaloosa ManagementSell-2,000118,000$92,424,680
Q4 2023Parnassus Endeavor FundSell-4,392123,513$96,742,792
Q4 2023Tiger Global ManagementBuy32,945402,983$315,640,465
Q3 2023Renaissance Technologies LLCSell-84,600122,756$76,940
Q3 2023Sequoia Financial AdvisorsSell-644,615$2,892,658
Q3 2023Hillman Value FundSell-4,4089,085$5,694,205
Q3 2023Parnassus Endeavor FundSell-16,171127,905$80,167,017
Q3 2023Tiger Global ManagementBuy28,510370,038$231,928,717
Q2 2023Vulcan Value PartnersSell-169,156120,856$77,744
Q2 2023Sequoia Financial AdvisorsSell-1944,679$3,007,946
Q2 2023Hillman Value FundSell-24213,493$8,674,110
Q2 2023Appaloosa ManagementSell-1,055,000120,000$77,143,200
Q2 2023Parnassus Endeavor FundSell-44,034144,076$92,620,697
Q2 2023Tiger Global ManagementBuy241,300341,528$219,554,690
Q1 2023Vulcan Value PartnersSell-42,082290,012$153,575
Q1 2023Sequoia Financial AdvisorsBuy3294,873$2,583,339
Q1 2023Hillman Value FundSell-13313,735$7,281,198
Q1 2023Tiger Global ManagementBuy100,228100,228$53,132,867
Q1 2023Parnassus Endeavor FundSell-1,060188,110$99,720,873
Q1 2023Sound Shore ManagementBuy28,815123,375$65,403,555

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.