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Lam Research Corp

LRCX
Exchange
Nasdaq
Industry
Special Industry Machinery, NEC
SEC CIK
0000707549

In the last 90 days, Lam Research Corp insiders filed 0 open-market purchases and 7 sales; 3,142 institutions reported holding it in 13F filings for Q2 2026, worth $463.8B in total; 6 superinvestors hold it, including Coatue Management and Tiger Global Management.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Lam Research Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
7 filings
5 insiders, $58.3M in total
Insiders trading
5
Net value
−$58.3M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Lam Research Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Lam Research Corp
NameTitleLast reported holdingLast filingFilings, past year
Archer TimothyPresident and CEO1,075,966Sep 10, 20267
Mayer BethanyDirector20,995IndirectSep 10, 20263
Varadarajan SeshasayeeSenior Vice President205,546Sep 3, 20263
Harter AvaChief Legal Officer42,462Sep 1, 20267
Talwalkar Abhijit YDirector87,142Jul 14, 20263
Brandt EricDirector144,705Jun 15, 20264
Fernandes Neil JSenior Vice President58,470Jun 2, 20264
Bettinger Douglas RChief Financial Officer & EVP1,081,705Mar 5, 20265
Lord Patrick JExecutive Vice President98,848Mar 2, 20262
Vahedi VahidSenior Vice President276,896Mar 2, 20263
Corrreia ChristinaCVP , Chief Accounting Officer57,168Mar 2, 20262
Devgan AnirudhDirector1,141Feb 9, 20261
Fields MarkDirector5,322Nov 10, 20251
Cannon Michael RDirector191,375Nov 10, 20251
Brennan Ita MDirector5,342Nov 10, 20251
Dineen John M.Director9,135Nov 10, 20251
Ahmed Sohail UDirector1,635Nov 10, 20251
Mehra JyotiDirector18,475Nov 10, 20251
Kang Ho KyuDirector9,664Nov 10, 20252
Schisler George MChief Legal Officer5,661May 6, 20240
Hahn AvaChief Legal Officer & SVP3,433Jan 4, 20240
Varon Leslie FDirector2,834Nov 13, 20230
Tsai Lih Shyng (Rick)Director7,459Nov 13, 20230
Gottscho Richard AExecutive Vice President & CTO30,398Mar 2, 20230
Meikle Scott GeraldSenior Vice President22,954Mar 2, 20230
Lego Catherine PDirector49,991Apr 27, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 10, 2026 (view filing)1:05 PM ETSep 91 dayArcher TimothyPresident and CEOSSale−30.0K$319.26−$9.58M−2.7%1.08M after10b5-1
Sep 10, 2026 (view filing)1:04 PM ETSep 91 dayMayer BethanyDirectorSSale−9.56K$314.74−$3.01M−31.3%21.0K after
Sep 3, 2026 (view filing)3:06 PM ETSep 21 dayVaradarajan SeshasayeeSenior Vice PresidentSSale−59.8K$291.32−$17.4M−22.5%205.5K after3 lots10b5-1
Sep 1, 2026 (view filing)12:08 PM ETAug 311 dayHarter AvaChief Legal OfficerSSale−5.00K$302.46−$1.51M−10.5%42.5K after10b5-1
Aug 7, 2026 (view filing)1:24 PM ETAug 61 dayArcher TimothyPresident and CEOSSale−30.0K$300.00−$9.00M−2.7%1.08M after10b5-1
Jul 14, 2026 (view filing)12:56 PM ETJul 131 dayTalwalkar Abhijit YDirectorSSale−18.3K$335.00−$6.12M−17.3%87.1K after10b5-1
Jul 6, 2026 (view filing)12:33 PM ETJul 24 daysArcher TimothyPresident and CEOSSale−30.0K$390.01−$11.7M−2.7%1.08M after10b5-1
Jun 15, 2026 (view filing)Jun 123 daysBrandt EricDirectorSSale−54.5K$367.18−$20.0M−27.4%144.7K after17 lots10b5-1
Jun 15, 2026 (view filing)Jun 114 daysBrandt EricDirectorSSale−54.5K$350.80−$19.1M−21.5%199.2K after26 lots10b5-1
Jun 2, 2026 (view filing)Jun 11 dayFernandes Neil JSenior Vice PresidentSSale−7.66K$309.60−$2.37M−11.6%58.5K after10b5-1
May 4, 2026 (view filing)May 13 daysFernandes Neil JSenior Vice PresidentSSale−18.2K$255.14−$4.64M−21.6%66.1K after10b5-1
Apr 28, 2026 (view filing)Apr 271 dayHarter AvaChief Legal OfficerSSale−6.01K$258.66−$1.55M−10.1%53.2K after
Mar 5, 2026 (view filing)Mar 41 dayHarter AvaChief Legal OfficerSSale−1.50K$222.66−$334.0K−2.7%53.2K after
Mar 5, 2026 (view filing)Mar 41 dayBettinger Douglas RChief Financial Officer & EVPSSale−50.1K$224.03−$11.2M−4.4%1.08M after
Mar 3, 2026 (view filing)Mar 21 dayHarter AvaChief Legal OfficerSSale−4.00K$232.50−$930.0K−6.8%54.7K after
Mar 3, 2026 (view filing)Mar 21 dayBettinger Douglas RChief Financial Officer & EVPSSale−40.3K$230.22−$9.28M−3.7%1.05M after
Feb 9, 2026 (view filing)Feb 63 daysBrandt EricDirectorSSale−35.0K$225.60−$7.90M−12.1%253.7K after2 lots
Dec 18, 2025 (view filing)Dec 171 dayArcher TimothyPresident and CEOSSale−163.3K$163.86−$26.8M−14.9%932.4K after2 lots10b5-1
Nov 17, 2025 (view filing)Nov 143 daysBettinger Douglas RChief Financial Officer & EVPSSale−40.1K$150.60−$6.04M−3.9%987.2K after
Nov 10, 2025 (view filing)Nov 73 daysMayer BethanyDirectorSSale−30$159.52−$4.79K−0.9%3.26K after10b5-1
Nov 4, 2025 (view filing)Nov 31 dayMayer BethanyDirectorSSale−1.30K$159.99−$207.7K−44.0%1.65K after10b5-1
Oct 28, 2025 (view filing)Oct 271 dayHarter AvaChief Legal OfficerSSale−9.01K$157.47−$1.42M−13.7%56.8K after2 lots
Oct 14, 2025 (view filing)Oct 131 dayVahedi VahidSenior Vice PresidentSSale−52.2K$138.90−$7.25M−17.2%251.0K after10b5-1
Aug 6, 2025 (view filing)Apr 8120 daysLateHarter AvaChief Legal OfficerPPurchase+9.46$63.66+$602.220.0%65.1K after
Feb 21, 2025 (view filing)Feb 201 dayVaradarajan SeshasayeeSenior Vice PresidentSSale−110.1K$90.00−$9.91M−38.1%179.1K after2 lots10b5-1
Nov 4, 2024 (view filing)Nov 13 daysMayer BethanyDirectorSSale−1.66K$75.16−$124.8K−5.4%28.9K after
Oct 2, 2024 (view filing)Oct 11 dayCorrreia ChristinaCVP , Chief Accounting OfficerSSale−647$817.51−$528.9K−13.2%4.27K after10b5-1
Jul 15, 2024 (view filing)Jul 123 daysFernandes Neil JSenior Vice PresidentSSale−1.62K$1,056.99−$1.71M−23.6%5.24K after10b5-1
Jul 2, 2024 (view filing)Jun 284 daysArcher TimothyPresident and CEOSSale−9.65K$1,070.39−$10.3M−10.2%84.6K after20 lots10b5-1
Jul 2, 2024 (view filing)Jun 284 daysArcher TimothyPresident and CEOSSale−5.60K$1,078.53−$6.04M−5.6%94.3K after8 lots10b5-1
Jul 2, 2024 (view filing)Jun 284 daysArcher TimothyPresident and CEOSSale−13.7K$1,067.12−$14.7M−12.1%99.9K after16 lots10b5-1
Jul 2, 2024 (view filing)Jul 11 dayCorrreia ChristinaCVP , Chief Accounting OfficerSSale−647$1,062.26−$687.3K−11.6%4.91K after10b5-1
Jul 1, 2024 (view filing)Jun 274 daysFernandes Neil JSenior Vice PresidentSSale−4.41K$1,055.76−$4.65M−39.1%6.86K after10b5-1
May 6, 2024 (view filing)May 33 daysSchisler George MChief Legal OfficerSSale−400$908.21−$363.3K−6.6%5.66K after
Apr 30, 2024 (view filing)Apr 291 dayLord Patrick JExecutive Vice PresidentSSale−60$921.54−$55.3K−1.3%4.45K after10b5-1
Apr 2, 2024 (view filing)Apr 11 dayTalwalkar Abhijit YDirectorSSale−882$972.03−$857.3K−7.7%10.5K after
Apr 2, 2024 (view filing)Apr 11 dayCorrreia ChristinaCVP , Chief Accounting OfficerSSale−647$972.03−$628.9K−10.5%5.54K after10b5-1
Mar 20, 2024 (view filing)Mar 18-192 daysVaradarajan SeshasayeeSenior Vice PresidentSSale−11.0K$918.20−$10.1M−39.9%16.6K after2 lots10b5-1
Mar 13, 2024 (view filing)Mar 112 daysLord Patrick JExecutive Vice PresidentSSale−3.45K$927.79−$3.20M−43.3%4.51K after9 lots10b5-1
Mar 13, 2024 (view filing)Mar 112 daysLord Patrick JExecutive Vice PresidentSSale−4.79K$927.90−$4.45M−37.6%7.97K after25 lots10b5-1
Feb 2, 2024 (view filing)Feb 11 dayFernandes Neil JSenior Vice PresidentSSale−2.16K$828.33−$1.79M−17.9%9.91K after
Jan 4, 2024 (view filing)Jan 31 dayArcher TimothyPresident and CEOSSale−10.5K$732.00−$7.70M−10.9%86.4K after10b5-1
Jan 4, 2024 (view filing)Jan 31 dayHahn AvaChief Legal Officer & SVPSSale−2.34K$732.00−$1.71M−40.6%3.43K after10b5-1
Jan 3, 2024 (view filing)Jan 21 dayCorrreia ChristinaCVP , Chief Accounting OfficerSSale−647$768.75−$497.4K−10.5%5.49K after10b5-1
Jan 3, 2024 (view filing)Jan 21 dayTalwalkar Abhijit YDirectorSSale−882$768.75−$678.0K−7.1%11.6K after
Dec 15, 2023 (view filing)Dec 141 dayLord Patrick JExecutive Vice PresidentSSale−2.13K$750.09−$1.60M−25.5%6.20K after10b5-1
Dec 12, 2023 (view filing)Dec 111 dayArcher TimothyPresident and CEOSSale−8.50K$710.24−$6.04M−9.0%86.4K after10b5-1
Nov 27, 2023 (view filing)Nov 225 daysLord Patrick JExecutive Vice PresidentSSale−1.85K$725.00−$1.34M−22.9%6.20K after2 lots10b5-1
Nov 21, 2023 (view filing)Nov 201 dayLord Patrick JExecutive Vice PresidentSSale−1.84K$708.33−$1.31M−18.7%8.05K after
Nov 17, 2023 (view filing)Nov 161 dayLord Patrick JExecutive Vice PresidentSSale−2.83K$700.00−$1.98M−22.3%9.89K after10b5-1