LAM RESEARCH CORP (LRCX): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in LRCX · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
53
13F filers
Aggregate Value
$20.4B
Across holders
Last Price
$310.17
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity26 increased26 reduced5 exited
Full exits: VOLORIDGE INVESTMENT MANAGEMENT, LLC, Point72 Asset Management, L.P., Alphadyne Asset Management LP, Third Point LLC, MAPLELANE CAPITAL, LLC
Institutional Holders of LRCX
53 holders
ManagerTypeSharesMarket Value% of Total% of PortfolioActionQoQ ChangeQuarter
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund12.27M$5.3B26.1%2.4%Reduced$-394.6MQ2 2026
COATUE MANAGEMENT LLC
CIK 0001135730
Hedge Fund9.44M$4.1B20.1%8.4%Reduced$-3.6BQ2 2026
Grantham, Mayo, Van Otterloo & Co. LLC
CIK 0001352662
Institutional Manager5.46M$2.4B11.6%5.3%Reduced$-623.8MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund3.49M$1.5B7.4%0.5%Added+$1.5BQ2 2026
TIGER GLOBAL MANAGEMENT LLC
CIK 0001167483
Hedge Fund3.16M$1.4B6.7%5.7%Reduced$-319.3MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund1.42M$615.8M3.0%0.1%Added$-1.1BQ2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
Hedge Fund1.19M$513.8M2.5%0.7%Added+$12.0MQ2 2026
SANDS CAPITAL MANAGEMENT, LLC
CIK 0001020066
Institutional Manager1.13M$491.4M2.4%1.8%Added+$164.1MQ2 2026
Bridgewater Associates, LP
CIK 0001350694
Hedge Fund938K$406.6M2.0%1.7%Reduced$-274.3MQ2 2026
Man Group plc
CIK 0001637460
Hedge Fund777K$336.8M1.7%0.5%Reduced+$327.2MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPReduced
Hedge Fund
$5.3B· 26.1% of total· 2.4% port· 12.27M sh· $-394.6M QoQ· Q2 2026
COATUE MANAGEMENT LLCReduced
Hedge Fund
$4.1B· 20.1% of total· 8.4% port· 9.44M sh· $-3.6B QoQ· Q2 2026
Grantham, Mayo, Van Otterloo & Co. LLCReduced
Institutional Manager
$2.4B· 11.6% of total· 5.3% port· 5.46M sh· $-623.8M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$1.5B· 7.4% of total· 0.5% port· 3.49M sh· +$1.5B QoQ· Q2 2026
TIGER GLOBAL MANAGEMENT LLCReduced
Hedge Fund
$1.4B· 6.7% of total· 5.7% port· 3.16M sh· $-319.3M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$615.8M· 3.0% of total· 0.1% port· 1.42M sh· $-1.1B QoQ· Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Added
Hedge Fund
$513.8M· 2.5% of total· 0.7% port· 1.19M sh· +$12.0M QoQ· Q2 2026
SANDS CAPITAL MANAGEMENT, LLCAdded
Institutional Manager
$491.4M· 2.4% of total· 1.8% port· 1.13M sh· +$164.1M QoQ· Q2 2026
Bridgewater Associates, LPReduced
Hedge Fund
$406.6M· 2.0% of total· 1.7% port· 938K sh· $-274.3M QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$336.8M· 1.7% of total· 0.5% port· 777K sh· +$327.2M QoQ· Q2 2026
Whale Rock Capital Management LLCReduced
Hedge Fund
$321.8M· 1.6% of total· 2.6% port· 743K sh· $-93.3M QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$309.9M· 1.5% of total· 0.3% port· 715K sh· +$162.2M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCReduced
Hedge Fund
$301.8M· 1.5% of total· 0.1% port· 696K sh· $-386.6M QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$232.3M· 1.1% of total· 0.3% port· 536K sh· +$203.4M QoQ· Q2 2026
Altimeter Capital Management, LLCAdded
Hedge Fund
$170.8M· 0.8% of total· 1.7% port· 394K sh· QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$167.7M· 0.8% of total· 0.5% port· 387K sh· +$101.9M QoQ· Q2 2026
Appaloosa LPUnchanged
Hedge Fund
$165.7M· 0.8% of total· 2.1% port· 383K sh· +$0 QoQ· Q2 2026
Clearbridge Investments, LLCReduced
Hedge Fund
$164.1M· 0.8% of total· 0.1% port· 379K sh· $-11.1M QoQ· Q2 2026
Fisher Asset Management, LLCReduced
Institutional Manager
$148.2M· 0.7% of total· 0.0% port· 342K sh· $-7.6M QoQ· Q2 2026
Holocene Advisors, LPAdded
Hedge Fund
$137.6M· 0.7% of total· 0.3% port· 318K sh· +$98.3M QoQ· Q2 2026
Gotham Asset Management, LLCReduced
Hedge Fund
$119.9M· 0.6% of total· 0.3% port· 277K sh· $-9.1M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$113.8M· 0.6% of total· 0.2% port· 263K sh· $-386.6M QoQ· Q2 2026
Rokos Capital Management LLPReduced
Hedge Fund
$102.8M· 0.5% of total· 0.4% port· 237K sh· $-9.8M QoQ· Q2 2026
CAXTON ASSOCIATES LLPAdded
Hedge Fund
$102.5M· 0.5% of total· 1.9% port· 237K sh· +$98.4M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$97.6M· 0.5% of total· 0.1% port· 225K sh· $-553.4M QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$89.4M· 0.4% of total· 0.0% port· 206K sh· $-277.7M QoQ· Q2 2026
PineBridge Investments, L.P.Added
Hedge Fund
$80.6M· 0.4% of total· 0.6% port· 602K sh· +$19.8M QoQ· Q3 2025
JUPITER ASSET MANAGEMENT LTDReduced
Hedge Fund
$68.6M· 0.3% of total· 0.3% port· 158K sh· $-88.0M QoQ· Q2 2026
MOORE CAPITAL MANAGEMENT, LPAdded
Hedge Fund
$67.4M· 0.3% of total· 1.0% port· 156K sh· +$54.0M QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$60.5M· 0.3% of total· 0.2% port· 140K sh· +$52.7M QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$58.3M· 0.3% of total· 0.0% port· 135K sh· +$58.2M QoQ· Q2 2026
Verition Fund Management LLCAdded
Hedge Fund
$40.9M· 0.2% of total· 0.2% port· 94K sh· +$40.1M QoQ· Q2 2026
FRED ALGER MANAGEMENT, LLCAdded
Hedge Fund
$30.7M· 0.2% of total· 0.1% port· 71K sh· +$14.8M QoQ· Q2 2026
Parallax Volatility Advisers, L.P.Added
Hedge Fund
$30.4M· 0.1% of total· 0.1% port· 70K sh· $-15.3M QoQ· Q2 2026
Sculptor Capital LPReduced
Hedge Fund
$22.2M· 0.1% of total· 0.2% port· 51K sh· $-172.4M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALReduced
Hedge Fund
$19.2M· 0.1% of total· 0.0% port· 44K sh· $-37.8M QoQ· Q2 2026
Duquesne Family Office LLCAdded
Family Office
$18.9M· 0.1% of total· 0.4% port· 44K sh· QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCReduced
Hedge Fund
$15.0M· 0.1% of total· 0.0% port· 35K sh· +$14.8M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$13.7M· 0.1% of total· 0.0% port· 32K sh· +$12.2M QoQ· Q2 2026
TCW GROUP INCAdded
Hedge Fund
$12.7M· 0.1% of total· 0.1% port· 29K sh· $-7.6M QoQ· Q2 2026
Lighthouse Investment Partners, LLCAdded
Hedge Fund
$9.8M· 0.0% of total· 0.3% port· 23K sh· QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$7.9M· 0.0% of total· 0.1% port· 18K sh· QoQ· Q2 2026
Brevan Howard Capital Management LPReduced
Hedge Fund
$6.9M· 0.0% of total· 0.1% port· 16K sh· $-27.3M QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$6.0M· 0.0% of total· 0.0% port· 14K sh· QoQ· Q2 2026
Schonfeld Strategic Advisors LLCReduced
Hedge Fund
$3.6M· 0.0% of total· 0.0% port· 8K sh· $-64.5M QoQ· Q2 2026
Fulcrum Asset Management LLPReduced
Hedge Fund
$3.5M· 0.0% of total· 0.3% port· 9K sh· $-2.7M QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALAdded
Institutional Manager
$3.4M· 0.0% of total· 0.0% port· 8K sh· +$2.0M QoQ· Q2 2026
MAVERICK CAPITAL LTDAdded
Hedge Fund
$1.8M· 0.0% of total· 0.0% port· 4K sh· QoQ· Q2 2026
Ancora Advisors, LLCReduced
Hedge Fund
$1.7M· 0.0% of total· 0.0% port· 4K sh· $-2.1M QoQ· Q2 2026
Pinpoint Asset Management LtdAdded
Hedge Fund
$1.3M· 0.0% of total· 0.2% port· 18K sh· QoQ· Q1 2025
Magnetar Financial LLCReduced
Hedge Fund
$994K· 0.0% of total· 0.0% port· 2K sh· $-298K QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCReduced
Hedge Fund
$478K· 0.0% of total· 0.0% port· 1K sh· $-89.3M QoQ· Q2 2026
BAILLIE GIFFORD & COAdded
Institutional Manager
$25K· 0.0% of total· 0.0% port· 58 sh· QoQ· Q2 2026
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