SEC INSIDER TRANSACTIONS

LAM RESEARCH CORP (LRCX) Insider Transactions

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LRCX · LAM RESEARCH CORP

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Roles: director,officer,ten_percent_owner,otherOwner nameOfficer titleOwnership: D, I, unknownoriginal or amendedTransaction fromTransaction throughFiled fromFiled throughMinimum quantityMaximum quantityMinimum priceMaximum priceMinimum calculated valueMaximum calculated valueResults per page (1–100)

OR within codes/roles; AND between categories. Roles apply to buyers and sellers. Owner predicates match the same owner. Missing values fail numeric/date filters. Value is quantity × reported price for non-derivative rows only; derivative values are unknown. Amendments stay separate; joint owners do not duplicate rows.

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Stale snapshot · Covered: filings 2026-05-14 to 2026-10-27 · 12 filings · fetched 2026-10-27T16:33:05Z

Recent reported activity

0purchase rows on this page

12sale rows on this page

67matching filing rows

Purchases and sales count original non-derivative P and S rows. Awards, gifts, exercises, derivatives and amendments are shown separately and are not described as market purchases.

Transaction / filed	Reporting owner(s)	Code / security	Quantity	Price as filed	Ownership	Source
2026-10-23Filed 2026-10-26	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F3	M Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative	31,400D	0	Direct	Form 4 ↗0001343600-26-000015
2026-10-23Filed 2026-10-26	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	S Sale (market/private)Common Stock · Non-derivative	31,400D	227.02	Direct	Form 4 ↗0001343600-26-000015
2026-10-23Filed 2026-10-26	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	M Exercise / conversionCommon Stock · Non-derivative	31,400A	30.033	Direct	Form 4 ↗0001343600-26-000015
2026-09-09Filed 2026-09-10	Mayer BethanyDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $314.08 to $314.99, inclusive F2 The amount reported includes shares subject to unvested restricted stock units. References: F1	S Sale (market/private)Common Stock · Non-derivative	9,557D	314.74	IndirectBy Trust	Form 4 ↗0001405693-26-000011
2026-09-09Filed 2026-09-10	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F3	M Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative	30,000D	0	Direct	Form 4 ↗0001343600-26-000013
2026-09-09Filed 2026-09-10	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	S Sale (market/private)Common Stock · Non-derivative	30,000D	319.26	Direct	Form 4 ↗0001343600-26-000013
2026-09-09Filed 2026-09-10	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	M Exercise / conversionCommon Stock · Non-derivative	30,000A	30.033	Direct	Form 4 ↗0001343600-26-000013
2026-09-02Filed 2026-09-03	Varadarajan SeshasayeeOfficer · Senior Vice President Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 4, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/01/2022, 03/01/2023, and 03/01/2024. F4 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F4	M Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative	27,480D	0	Direct	Form 4 ↗0001707827-26-000006
2026-09-02Filed 2026-09-03	Varadarajan SeshasayeeOfficer · Senior Vice President Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 4, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/01/2022, 03/01/2023, and 03/01/2024. F4 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F3	M Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative	12,270D	0	Direct	Form 4 ↗0001707827-26-000006
2026-09-02Filed 2026-09-03	Varadarajan SeshasayeeOfficer · Senior Vice President Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 4, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/01/2022, 03/01/2023, and 03/01/2024. F4 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	S Sale (market/private)Common Stock · Non-derivative	27,480D	291.32	Direct	Form 4 ↗0001707827-26-000006
2026-09-02Filed 2026-09-03	Varadarajan SeshasayeeOfficer · Senior Vice President Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 4, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/01/2022, 03/01/2023, and 03/01/2024. F4 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	M Exercise / conversionCommon Stock · Non-derivative	27,480A	30.033	Direct	Form 4 ↗0001707827-26-000006
2026-09-02Filed 2026-09-03	Varadarajan SeshasayeeOfficer · Senior Vice President Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 4, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/01/2022, 03/01/2023, and 03/01/2024. F4 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	S Sale (market/private)Common Stock · Non-derivative	12,270D	291.32	Direct	Form 4 ↗0001707827-26-000006
2026-09-02Filed 2026-09-03	Varadarajan SeshasayeeOfficer · Senior Vice President Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 4, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/01/2022, 03/01/2023, and 03/01/2024. F4 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	M Exercise / conversionCommon Stock · Non-derivative	12,270A	59.881	Direct	Form 4 ↗0001707827-26-000006
2026-09-02Filed 2026-09-03	Varadarajan SeshasayeeOfficer · Senior Vice President Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 4, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/01/2022, 03/01/2023, and 03/01/2024. F4 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	S Sale (market/private)Common Stock · Non-derivative	20,000D	291.32	Direct	Form 4 ↗0001707827-26-000006
2026-08-31Filed 2026-09-01	Harter AvaOfficer · Chief Legal Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on April 28, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. References: F1, F2	S Sale (market/private)Common Stock · Non-derivative	5,000D	302.46	Direct	Form 4 ↗0001642415-26-000012
2026-08-06Filed 2026-08-07	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F3	M Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative	30,000D	0	Direct	Form 4 ↗0001343600-26-000011
2026-08-06Filed 2026-08-07	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	S Sale (market/private)Common Stock · Non-derivative	30,000D	300	Direct	Form 4 ↗0001343600-26-000011
2026-08-06Filed 2026-08-07	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	M Exercise / conversionCommon Stock · Non-derivative	30,000A	30.033	Direct	Form 4 ↗0001343600-26-000011
2026-08-05Filed 2026-08-06	Harter AvaOfficer · Chief Legal Officer Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 Represents shares that were automatically withheld upon vesting of restricted stock units to satisfy tax withholding obligations. F2 The amount reported includes shares subject to unvested restricted stock units. References: F1, F2	F WithholdingCommon Stock · Non-derivative	5,790D	307.42	Direct	Form 4 ↗0001642415-26-000010
2026-07-13Filed 2026-07-14	TALWALKAR ABHIJIT YDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 11, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. References: F1, F2	S Sale (market/private)Common Stock · Non-derivative	18,282D	335	Direct	Form 4 ↗0001316065-26-000012
2026-07-02Filed 2026-07-06	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F3	M Exercise / conversionEmployee Stock Option (Right to Buy) · Derivative	30,000D	0	Direct	Form 4 ↗0001343600-26-000009
2026-07-02Filed 2026-07-06	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	S Sale (market/private)Common Stock · Non-derivative	30,000D	390.01	Direct	Form 4 ↗0001343600-26-000009
2026-07-02Filed 2026-07-06	ARCHER TIMOTHYOfficer · President and CEO Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2026. F2 The amount reported includes shares subject to unvested restricted stock units. F3 The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023. References: F1, F2	M Exercise / conversionCommon Stock · Non-derivative	30,000A	30.033	Direct	Form 4 ↗0001343600-26-000009
2026-06-12Filed 2026-06-15	BRANDT ERICDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026. F2 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $355.39 to $356.02, inclusive F3 The amount reported includes shares subject to unvested restricted stock units. F4 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $356.685 to $357.67, inclusive F5 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $357.68 to $358.35, inclusive F6 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $358.73 to $359.54, inclusive F7 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $359.84 to $360.79, inclusive F8 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $360.85 to $361.83, inclusive F9 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $361.87 to $362.82, inclusive F10 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $363.92 to $363.77, inclusive F11 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $363.92 to $364.85, inclusive F12 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $364.98 to $365.67, inclusive F13 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $366.56 to $367.55, inclusive F14 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $367.62 to $368.49, inclusive F15 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $368.70 to $369.64, inclusive F16 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $369.70 to $370.69, inclusive F17 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $370.70 to $371.59, inclusive F18 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $371.77 to $372.76, inclusive F19 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $372.79 to $373.36, inclusive References: F1, F19, F3	S Sale (market/private)Common Stock · Non-derivative	1,600D	373.09	Direct	Form 4 ↗0001190639-26-000006
2026-06-12Filed 2026-06-15	BRANDT ERICDirector Filing context Reported filing row; may be amended. Do not sum filings blindly. F1 This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 6, 2026. F2 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $355.39 to $356.02, inclusive F3 The amount reported includes shares subject to unvested restricted stock units. F4 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $356.685 to $357.67, inclusive F5 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $357.68 to $358.35, inclusive F6 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $358.73 to $359.54, inclusive F7 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $359.84 to $360.79, inclusive F8 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $360.85 to $361.83, inclusive F9 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $361.87 to $362.82, inclusive F10 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $363.92 to $363.77, inclusive F11 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $363.92 to $364.85, inclusive F12 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $364.98 to $365.67, inclusive F13 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $366.56 to $367.55, inclusive F14 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $367.62 to $368.49, inclusive F15 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $368.70 to $369.64, inclusive F16 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $369.70 to $370.69, inclusive F17 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $370.70 to $371.59, inclusive F18 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $371.77 to $372.76, inclusive F19 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $372.79 to $373.36, inclusive References: F1, F18, F3	S Sale (market/private)Common Stock · Non-derivative	7,700D	372.23	Direct	Form 4 ↗0001190639-26-000006

Imported instruments only. Joint owners do not multiply transactions. Amendments are separate filing rows, not additional trades. No aggregate trade totals are implied.