The Filings Report

Lam Research insider trading

LRCXfinancial statementsForm 4 filings on EDGAR220 transactions since Nov 1, 2024

From August 4, 2026 to November 1, 2026, 0 insiders at Lam Research bought $0 of stock in the open market, and 4 sold $48M. Officers and directors accounted for $0 of purchases and $48M of sales. The last reported transaction was an option exercise by Archer Timothy on October 23, 2026.

The answer card and chart use the same period. Change the range above the chart to update both. Form 4 filings through October 26, 2026; awards, option exercises, tax withholding and gifts are excluded from these totals.

Stock price and insider activity

Daily price candles with insider purchases and sales directly beneath them on the same timeline. Bars show individual days; totals sum all days in the selected period.

LRCX daily priceSplit-adjusted prices in US dollars

Bought $0Sold $48MAug 4, 2026 – Nov 1, 2026

Oct 30, 2026O $239.45 · H $244.48 · L $232.61 · C $239.10Bought $0 (0)Sold $0 (0)
$217$253$289$325$3602026-08-04: open $308.83, high $320.25, low $306.16, close $317.742026-08-05: open $318.54, high $323.64, low $305.36, close $307.422026-08-06: open $300.00, high $314.16, low $293.65, close $305.772026-08-07: open $311.87, high $315.59, low $303.83, close $311.352026-08-10: open $319.50, high $319.99, low $305.50, close $306.402026-08-11: open $315.03, high $316.86, low $309.35, close $311.412026-08-12: open $326.84, high $329.49, low $323.50, close $326.112026-08-13: open $327.62, high $345.12, low $324.01, close $337.012026-08-14: open $332.36, high $342.00, low $326.56, close $332.362026-08-17: open $337.87, high $345.28, low $333.40, close $343.842026-08-18: open $324.18, high $329.07, low $317.50, close $327.922026-08-19: open $326.12, high $328.57, low $305.08, close $307.172026-08-20: open $305.23, high $312.54, low $302.95, close $310.532026-08-21: open $317.86, high $319.10, low $303.85, close $314.002026-08-24: open $307.94, high $311.44, low $297.78, close $310.172026-08-25: open $316.20, high $318.61, low $307.86, close $314.662026-08-26: open $314.61, high $315.72, low $308.05, close $312.882026-08-27: open $318.88, high $321.41, low $310.44, close $318.582026-08-28: open $318.03, high $318.29, low $301.05, close $301.902026-08-31: open $303.19, high $303.40, low $298.77, close $301.492026-09-01: open $294.56, high $296.34, low $286.59, close $290.202026-09-02: open $291.50, high $292.19, low $284.40, close $288.322026-09-03: open $283.73, high $292.78, low $278.04, close $292.662026-09-04: open $303.47, high $310.30, low $297.38, close $307.652026-09-08: open $314.49, high $321.77, low $312.03, close $320.422026-09-09: open $319.26, high $322.21, low $312.76, close $315.842026-09-10: open $302.15, high $307.03, low $297.01, close $298.012026-09-11: open $303.45, high $303.69, low $294.54, close $298.222026-09-14: open $275.00, high $280.20, low $273.24, close $273.492026-09-15: open $278.61, high $278.61, low $265.37, close $270.872026-09-16: open $277.13, high $277.78, low $265.75, close $269.232026-09-17: open $280.46, high $281.40, low $266.90, close $269.312026-09-18: open $274.41, high $288.27, low $273.01, close $288.112026-09-21: open $292.49, high $305.69, low $290.04, close $302.282026-09-22: open $296.82, high $311.39, low $296.08, close $310.962026-09-23: open $307.50, high $309.75, low $298.56, close $307.282026-09-24: open $301.86, high $307.22, low $298.86, close $307.162026-09-25: open $309.18, high $317.13, low $307.50, close $315.212026-09-28: open $313.88, high $316.31, low $305.50, close $314.472026-09-29: open $323.63, high $328.32, low $319.15, close $323.862026-09-30: open $324.65, high $330.50, low $322.06, close $328.512026-10-01: open $332.00, high $341.64, low $331.05, close $340.102026-10-02: open $350.00, high $352.56, low $344.77, close $347.492026-10-05: open $346.88, high $351.37, low $341.70, close $345.802026-10-06: open $345.10, high $346.90, low $330.85, close $333.892026-10-07: open $322.06, high $329.75, low $321.11, close $329.512026-10-08: open $321.02, high $331.79, low $316.66, close $320.592026-10-09: open $326.00, high $326.72, low $316.01, close $318.842026-10-12: open $314.85, high $314.95, low $308.01, close $309.562026-10-13: open $301.68, high $303.50, low $290.90, close $301.112026-10-14: open $289.61, high $295.86, low $284.75, close $286.922026-10-15: open $275.19, high $280.45, low $266.12, close $277.462026-10-16: open $271.44, high $275.58, low $263.14, close $263.942026-10-19: open $275.16, high $279.92, low $271.87, close $272.202026-10-20: open $267.76, high $270.97, low $260.29, close $263.452026-10-21: open $270.90, high $270.90, low $259.04, close $260.812026-10-22: open $234.50, high $242.10, low $227.68, close $230.152026-10-23: open $227.41, high $234.06, low $225.14, close $230.102026-10-26: open $231.53, high $241.25, low $230.51, close $237.502026-10-27: open $240.93, high $241.68, low $235.21, close $240.852026-10-28: open $245.01, high $257.60, low $244.53, close $253.822026-10-29: open $253.04, high $260.58, low $251.47, close $254.392026-10-30: open $239.45, high $244.48, low $232.61, close $239.10Insider purchases / sales · USD$20M$0−$20M2026-08-06: 0 purchases ($0), 1 sales ($9M)2026-08-31: 0 purchases ($0), 1 sales ($2M)2026-09-02: 0 purchases ($0), 3 sales ($17M)2026-09-09: 0 purchases ($0), 2 sales ($13M)2026-10-23: 0 purchases ($0), 1 sales ($7M)Aug 4Aug 26Sep 17Oct 9Oct 30

purchases above zero; sales below. Both use the transaction date and the same dollar scale. Hover, tap, or use arrow keys to inspect a date. Awards, exercises, tax withholding and gifts are excluded.

Dates with prices or insider activity are spaced evenly; empty weekends and holidays are omitted. Prices through Oct 30, 2026. Insider data through Nov 1, 2026. Prices are adjusted for splits; transaction values are reported dollars.

Every transaction

220 transactions from November 1, 2024 to November 1, 2026, newest first. Open-market purchases and sales are coloured; awards, exercises, tax withholding and gifts are grey and not counted.

TradedInsiderRoleTransactionSharesPriceValueHeld afterFiled
Oct 23, 2026Archer TimothyPresident and CEOoption exercise31,400$30.03$943K1MOct 26, 2026
Oct 23, 2026Archer TimothyPresident and CEOopen-market sale10b5-131,400$227.02$7M1MOct 26, 2026
Sep 9, 2026Archer TimothyPresident and CEOoption exercise30,000$30.03$901K1MSep 10, 2026
Sep 9, 2026Archer TimothyPresident and CEOopen-market sale10b5-130,000$319.26$10M1MSep 10, 2026
Sep 9, 2026Mayer BethanyDirectoropen-market saleindirect9,557$314.74$3M20,995Sep 10, 2026
Sep 2, 2026Varadarajan SeshasayeeSenior Vice Presidentopen-market sale10b5-120,000$291.32$6M205,546Sep 3, 2026
Sep 2, 2026Varadarajan SeshasayeeSenior Vice Presidentoption exercise12,270$59.88$735K217,816Sep 3, 2026
Sep 2, 2026Varadarajan SeshasayeeSenior Vice Presidentopen-market sale10b5-112,270$291.32$4M205,546Sep 3, 2026
Sep 2, 2026Varadarajan SeshasayeeSenior Vice Presidentoption exercise27,480$30.03$825K233,026Sep 3, 2026
Sep 2, 2026Varadarajan SeshasayeeSenior Vice Presidentopen-market sale10b5-127,480$291.32$8M205,546Sep 3, 2026
Aug 31, 2026Harter AvaChief Legal Officeropen-market sale10b5-15,000$302.46$2M42,462Sep 1, 2026
Aug 6, 2026Archer TimothyPresident and CEOoption exercise30,000$30.03$901K1MAug 7, 2026
Aug 6, 2026Archer TimothyPresident and CEOopen-market sale10b5-130,000$300.00$9M1MAug 7, 2026
Aug 5, 2026Harter AvaChief Legal Officertax withholding5,790$307.42$2M47,462Aug 6, 2026
Jul 13, 2026Talwalkar Abhijit YDirectoropen-market sale10b5-118,282$335.00$6M87,142Jul 14, 2026
Jul 2, 2026Archer TimothyPresident and CEOoption exercise30,000$30.03$901K1MJul 6, 2026
Jul 2, 2026Archer TimothyPresident and CEOopen-market sale10b5-130,000$390.01$12M1MJul 6, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-1300$355.71$107K198,905Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-11,393$357.24$498K197,512Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-11,100$357.98$394K196,412Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-13,828$359.08$1M192,584Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-11,906$360.15$686K190,678Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-1819$361.21$296K189,859Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-12,708$362.40$981K187,151Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-12,345$363.33$852K184,806Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-12,300$364.41$838K182,506Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-11,200$365.16$438K181,306Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-15,803$367.01$2M175,503Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-14,030$368.03$1M171,473Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-14,198$369.16$2M167,275Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-15,037$370.27$2M162,238Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-18,233$371.17$3M154,005Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-17,700$372.23$3M146,305Jun 15, 2026
Jun 12, 2026Brandt EricDirectoropen-market sale10b5-11,600$373.09$597K144,705Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-1974$337.56$329K252,731Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-11,083$338.62$367K251,648Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-11,895$339.75$644K249,753Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-11,277$340.68$435K248,476Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-11,070$341.81$366K247,406Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-13,644$342.91$1M243,762Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-11,481$343.96$509K242,281Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-13,208$344.92$1M239,073Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-12,832$345.84$979K236,241Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-13,442$346.79$1M232,799Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-16,592$347.86$2M226,207Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-14,334$348.73$2M221,873Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-11,517$349.79$531K220,356Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-136$350.77$13K220,320Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-11,172$353.52$414K219,148Jun 15, 2026
Jun 11, 2026Brandt EricDirectoropen-market sale10b5-11,461$354.08$517K217,687Jun 15, 2026

Who the insiders are

Everyone who reported a transaction since November 1, 2024, by open-market value over twelve months. Shares held are after the insider’s latest directly held transaction.

InsiderRoleLast transactionKindShares heldBought, 12 monthsSold, 12 monthsSales under a plan
Archer TimothyPresident and CEOOct 23, 2026option exercise1M—$64M (6)6 of 6
Brandt EricDirectorJun 12, 2026open-market sale198,905—$47M (45)43 of 45
Bettinger Douglas RChief Financial Officer & EVPMar 4, 2026option exercise1M—$27M (3)0 of 3
Varadarajan SeshasayeeSenior Vice PresidentSep 2, 2026open-market sale205,546—$17M (3)3 of 3
Fernandes Neil JSenior Vice PresidentJun 1, 2026open-market sale58,470—$7M (2)2 of 2
Talwalkar Abhijit YDirectorJul 13, 2026open-market sale87,142—$6M (1)1 of 1
Harter AvaChief Legal OfficerAug 31, 2026open-market sale42,462—$4M (4)1 of 4
Mayer BethanyDirectorSep 9, 2026open-market sale1,635—$3M (3)2 of 3
Correia ChristinaCVP , Chief Accounting OfficerFeb 27, 2026award76,796———
Vahedi VahidSenior Vice PresidentMar 27, 2026tax withholding276,896———
Lord Patrick JExecutive Vice PresidentFeb 27, 2026tax withholding103,317———
Ahmed Sohail UDirectorNov 7, 2025award1,635———
Kang Ho KyuDirectorNov 7, 2025award9,664———
Fields MarkDirectorNov 7, 2025award5,322———
Brennan Ita MDirectorNov 7, 2025award5,342———
Mehra JyotiDirectorNov 7, 2025award18,475———
Dineen John M.DirectorNov 7, 2025award9,135———
Cannon Michael RDirectorNov 7, 2025award191,375———
Devgan AnirudhDirectorFeb 6, 2026award1,141———

Questions

Are Lam Research insiders buying or selling?

Over the twelve months to November 1, 2026, 8 insiders at Lam Research sold $176M of stock in the open market, all by officers and directors, and no insider bought. Net, insiders sold $176M. Only open-market purchases and sales are counted.

Who sold the most Lam Research stock in the last year?

Archer Timothy (President and CEO) sold $64M in 6 open-market sales over the twelve months to November 1, 2026.

Do Lam Research executives sell under 10b5-1 plans?

58 of the 67 open-market sales in the last twelve months (87%) were reported as made under a Rule 10b5-1 trading plan, set up in advance. A sale under a plan is still counted as a sale.

What counts as insider buying here?

Only open-market purchases (Form 4 code P) and sales (code S) by officers, directors and 10% owners. Stock awards, option exercises, shares withheld for tax and gifts are listed in the table but never counted as buying or selling.

More on Lam Research

From Form 4, 4/A and 5 filings with the SEC. A record of insider transactions, not a recommendation.