LAM RESEARCH CORP (LRCX)
Data as of , from SEC Form 4 filings.
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About LAM RESEARCH CORP (LRCX)
Lam Research is one of the largest semiconductor wafer fabrication equipment manufacturers in the world. It specializes in deposition and etch, which entail the buildup of layers on a semiconductor and the subsequent selective removal of patterns from each layer. Lam holds the top market share in etch and holds the clear second share in deposition. It is more exposed to memory chipmakers for DRAM and NAND chips. It counts as top customers the largest chipmakers in the world, including TSMC, Samsung, Intel, and Micron.
- FREMONT, CA
- 23,300
- 1984
- XNAS
LRCX Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 7 | 134,307 | $40.50M |
| Option exercise | 8 | 199,500 | |
| Tax withholding / forfeiture | 1 | 5,790 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
LRCX insider transactions (Form 4)
12067 Form 4 filings on record, the earliest from Oct 1, 2024, newest first. Filing history page 1 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Timothy Archer - Officer | Option exercise | Common Stock | 30,000 footnote F1 | $30.03 | $901K | |
| Timothy Archer - Officer | Open-market sale | Common Stock | 30,000 footnote F1 | $319.26 | $9.58M | |
| Timothy Archer - Officer | Option exercise | Employee Stock Option (Right to Buy) | 30,000 | $0.00 | - | |
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| Bethany Mayer - Director | Open-market sale | Common Stock | 9,557 | $314.74 footnote F1 | $3.01M | |
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| Seshasayee Varadarajan - Officer | Open-market sale | Common Stock | 20,000 | $291.32 footnote F1 | $5.83M | |
| Seshasayee Varadarajan - Officer | Option exercise | Common Stock | 12,270 | $59.88 footnote F1 | $735K | |
| Seshasayee Varadarajan - Officer | Open-market sale | Common Stock | 12,270 | $291.32 footnote F1 | $3.57M | |
| Seshasayee Varadarajan - Officer | Option exercise | Common Stock | 27,480 | $30.03 footnote F1 | $825K | |
| Seshasayee Varadarajan - Officer | Open-market sale | Common Stock | 27,480 | $291.32 footnote F1 | $8.01M | |
| Seshasayee Varadarajan - Officer | Option exercise | Employee Stock Option (Right to Buy) | 12,270 | $0.00 | - | |
| Seshasayee Varadarajan - Officer | Option exercise | Employee Stock Option (Right to Buy) | 27,480 | $0.00 | - | |
| ||||||
| Ava Harter - Officer | Open-market sale | Common Stock | 5,000 footnote F1 | $302.46 | $1.51M | |
| ||||||
| Timothy Archer - Officer | Option exercise | Common Stock | 30,000 footnote F1 | $30.03 | $901K | |
| Timothy Archer - Officer | Open-market sale | Common Stock | 30,000 footnote F1 | $300.00 | $9.00M | |
| Timothy Archer - Officer | Option exercise | Employee Stock Option (Right to Buy) | 30,000 | $0.00 | - | |
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| Ava Harter - Officer | Tax withholding / forfeiture | Common Stock | 5,790 footnote F1 | $307.42 | $1.78M | |
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 Abhijit Y. Talwalkar - Director | Open-market sale | Common Stock | 18,282 footnote F1 | $335.00 | $6.12M | |
| ||||||
| Timothy Archer - Officer | Option exercise | Common Stock | 30,000 footnote F1 | $30.03 | $901K | |
| Timothy Archer - Officer | Open-market sale | Common Stock | 30,000 footnote F1 | $390.01 | $11.70M | |
| Timothy Archer - Officer | Option exercise | Employee Stock Option (Right to Buy) | 30,000 | $0.00 | - | |
| ||||||
 Eric Brandt - Director | Open-market sale | Common Stock | 1,277 footnote F1 | $340.68 footnote F6 | $435K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,070 footnote F1 | $341.81 footnote F7 | $366K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 3,644 footnote F1 | $342.91 footnote F8 | $1.25M | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,481 footnote F1 | $343.96 footnote F9 | $509K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 3,208 footnote F1 | $344.92 footnote F10 | $1.11M | |
| Eric Brandt - Director | Open-market sale | Common Stock | 2,832 footnote F1 | $345.84 footnote F11 | $979K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 3,442 footnote F1 | $346.79 footnote F12 | $1.19M | |
| Eric Brandt - Director | Open-market sale | Common Stock | 6,592 footnote F1 | $347.86 footnote F13 | $2.29M | |
| Eric Brandt - Director | Open-market sale | Common Stock | 4,334 footnote F1 | $348.73 footnote F14 | $1.51M | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,517 footnote F1 | $349.79 footnote F15 | $531K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 36 footnote F1 | $350.77 | $13K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,172 footnote F1 | $353.52 footnote F16 | $414K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,461 footnote F1 | $354.08 footnote F17 | $517K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,331 footnote F1 | $355.50 footnote F18 | $473K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,653 footnote F1 | $356.27 footnote F19 | $589K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,455 footnote F1 | $357.06 footnote F20 | $520K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,880 footnote F1 | $358.22 footnote F21 | $673K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 780 footnote F1 | $359.24 footnote F22 | $280K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 664 footnote F1 | $360.24 footnote F23 | $239K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,756 footnote F1 | $361.05 footnote F24 | $634K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 2,604 footnote F1 | $362.20 footnote F25 | $943K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 5,717 footnote F1 | $362.95 footnote F26 | $2.07M | |
| Eric Brandt - Director | Open-market sale | Common Stock | 642 footnote F1 | $364.00 footnote F27 | $234K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 974 footnote F1 | $337.56 footnote F2 | $329K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,083 footnote F1 | $338.62 footnote F4 | $367K | |
| Eric Brandt - Director | Open-market sale | Common Stock | 1,895 footnote F1 | $339.75 footnote F5 | $644K | |
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| Neil J. Fernandes - Officer | Open-market sale | Common Stock | 7,659 footnote F1 | $309.60 | $2.37M | |
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| Neil J. Fernandes - Officer | Open-market sale | Common Stock | 18,170 footnote F1 | $255.14 | $4.64M | |
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| Ava Harter - Officer | Option exercise | Common Stock | 6,010 | $77.04 | $463K | |
| Ava Harter - Officer | Open-market sale | Common Stock | 6,010 | $258.66 | $1.55M | |
| Ava Harter - Officer | Option exercise | Employee Stock Option (Right to Buy) | 6,010 | $0.00 | - | |
| Abhijit Y. Talwalkar - Director | Gift | Common Stock | 4,571 | $0.00 | - | |
| Douglas R. Bettinger - Officer | Option exercise | Common Stock | 26,480 | $98.15 | $2.60M | |
| Douglas R. Bettinger - Officer | Open-market sale | Common Stock | 50,057 | $224.03 footnote F2 | $11.21M | |
| Douglas R. Bettinger - Officer | Option exercise | Employee Stock Option (Right to Buy) | 51,270 | $0.00 | - | |
| Douglas R. Bettinger - Officer | Option exercise | Employee Stock Option (Right to Buy) | 26,480 | $0.00 | - | |
| Douglas R. Bettinger - Officer | Option exercise | Common Stock | 51,270 | $49.09 | $2.52M | |
| ||||||
| Ava Harter - Officer | Open-market sale | Common Stock | 1,500 | $222.66 | $334K | |
| Douglas R. Bettinger - Officer | Option exercise | Common Stock | 16,620 | $59.88 | $995K | |
| Douglas R. Bettinger - Officer | Option exercise | Common Stock | 37,980 | $54.06 | $2.05M | |
| Douglas R. Bettinger - Officer | Option exercise | Common Stock | 11,710 | $30.03 | $352K | |
| Douglas R. Bettinger - Officer | Open-market sale | Common Stock | 40,329 | $230.22 footnote F2 | $9.28M | |
| Douglas R. Bettinger - Officer | Option exercise | Employee Stock Option (Right to Buy) | 16,620 | $0.00 | - | |
| Douglas R. Bettinger - Officer | Option exercise | Employee Stock Option (Right to Buy) | 37,980 | $0.00 | - | |
| Douglas R. Bettinger - Officer | Option exercise | Employee Stock Option (Right to Buy) | 11,710 | $0.00 | - | |
| ||||||
| Ava Harter - Officer | Open-market sale | Common Stock | 4,000 | $232.50 | $930K | |
| Douglas R. Bettinger - Officer | Grant or award | Common Stock | 12,547 footnote F1 | $0.00 | - | |
| Douglas R. Bettinger - Officer | Tax withholding / forfeiture | Common Stock | 38,136 footnote F3 | $233.89 | $8.92M | |
| Douglas R. Bettinger - Officer | Tax withholding / forfeiture | Common Stock | 2,826 footnote F3 | $233.89 | $661K | |
| Douglas R. Bettinger - Officer | Tax withholding / forfeiture | Common Stock | 2,186 footnote F3 | $233.89 | $511K | |
| Douglas R. Bettinger - Officer | Tax withholding / forfeiture | Common Stock | 5,525 footnote F3 | $233.89 | $1.29M | |
| Douglas R. Bettinger - Officer | Grant or award | Market-based Performance Restricted Stock Unit | 18,820 | $0.00 | - | |
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| Seshasayee Varadarajan - Officer | Tax withholding / forfeiture | Common Stock | 5,047 footnote F3 | $233.89 | $1.18M | |
| Seshasayee Varadarajan - Officer | Grant or award | Market-based Performance Restricted Stock Unit | 18,820 | $0.00 | - | |
| Seshasayee Varadarajan - Officer | Grant or award | Common Stock | 12,547 footnote F1 | $0.00 | - | |
| Seshasayee Varadarajan - Officer | Tax withholding / forfeiture | Common Stock | 26,126 footnote F3 | $233.89 | $6.11M | |
| Seshasayee Varadarajan - Officer | Tax withholding / forfeiture | Common Stock | 3,168 footnote F3 | $233.89 | $741K | |
| Seshasayee Varadarajan - Officer | Tax withholding / forfeiture | Common Stock | 2,572 footnote F3 | $233.89 | $602K | |
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 Vahid Vahedi - Officer | Grant or award | Common Stock | 9,053 footnote F1 | $0.00 | - | |
| Vahid Vahedi - Officer | Tax withholding / forfeiture | Common Stock | 24,675 footnote F3 | $233.89 | $5.77M | |
| Vahid Vahedi - Officer | Tax withholding / forfeiture | Common Stock | 2,994 footnote F3 | $233.89 | $700K | |
| Vahid Vahedi - Officer | Tax withholding / forfeiture | Common Stock | 1,923 footnote F3 | $233.89 | $450K | |
| Vahid Vahedi - Officer | Tax withholding / forfeiture | Common Stock | 3,382 footnote F3 | $233.89 | $791K | |
| Vahid Vahedi - Officer | Grant or award | Market-based Performance Restricted Stock Unit | 11,065 | $0.00 | - | |
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| Ava Harter - Officer | Grant or award | Common Stock | 7,106 footnote F1 | $0.00 | - | |
| Ava Harter - Officer | Tax withholding / forfeiture | Common Stock | 1,988 footnote F3 | $233.89 | $465K | |
| Ava Harter - Officer | Tax withholding / forfeiture | Common Stock | 3,199 footnote F3 | $233.89 | $748K | |
| Ava Harter - Officer | Grant or award | Market-based Performance Restricted Stock Unit | 8,685 | $0.00 | - | |
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| Neil J. Fernandes - Officer | Grant or award | Common Stock | 8,274 footnote F1 | $0.00 | - | |
| Neil J. Fernandes - Officer | Tax withholding / forfeiture | Common Stock | 10,694 footnote F3 | $233.89 | $2.50M | |
| Neil J. Fernandes - Officer | Tax withholding / forfeiture | Common Stock | 1,298 footnote F3 | $233.89 | $304K | |
| Neil J. Fernandes - Officer | Tax withholding / forfeiture | Common Stock | 1,809 footnote F3 | $233.89 | $423K | |
| Neil J. Fernandes - Officer | Tax withholding / forfeiture | Common Stock | 3,290 footnote F3 | $233.89 | $769K | |
| Neil J. Fernandes - Officer | Grant or award | Market-based Performance Restricted Stock Unit | 10,113 | $0.00 | - | |
| ||||||
| Timothy Archer - Officer | Grant or award | Common Stock | 51,053 footnote F1 | $0.00 | - | |
| Timothy Archer - Officer | Tax withholding / forfeiture | Common Stock | 134,624 footnote F3 | $233.89 | $31.49M | |
| Timothy Archer - Officer | Tax withholding / forfeiture | Common Stock | 9,975 footnote F3 | $233.89 | $2.33M | |
| Timothy Archer - Officer | Tax withholding / forfeiture | Common Stock | 8,111 footnote F3 | $233.89 | $1.90M | |
| Timothy Archer - Officer | Tax withholding / forfeiture | Common Stock | 19,584 footnote F3 | $233.89 | $4.58M | |
| Timothy Archer - Officer | Grant or award | Market-based Performance Restricted Stock Unit | 76,580 | $0.00 | - | |
| ||||||
| Patrick J. Lord - Officer | Tax withholding / forfeiture | Common Stock | 31,406 footnote F1 | $233.89 | $7.35M | |
| Patrick J. Lord - Officer | Tax withholding / forfeiture | Common Stock | 2,325 footnote F1 | $233.89 | $544K | |
| Patrick J. Lord - Officer | Tax withholding / forfeiture | Common Stock | 1,755 footnote F1 | $233.89 | $410K | |
| Patrick J. Lord - Officer | Tax withholding / forfeiture | Common Stock | 4,469 footnote F1 | $233.89 | $1.05M | |
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| Christina Correia - Officer | Tax withholding / forfeiture | Common Stock | 1,421 footnote F4 | $233.89 | $332K | |
| Christina Correia - Officer | Grant or award | Common Stock | 3,180 footnote F1 | $0.00 | - | |
| Christina Correia - Officer | Grant or award | Common Stock | 12,979 footnote F3 | $0.00 | - | |
| Christina Correia - Officer | Tax withholding / forfeiture | Common Stock | 4,306 footnote F4 | $233.89 | $1.01M | |
| Christina Correia - Officer | Tax withholding / forfeiture | Common Stock | 996 footnote F4 | $233.89 | $233K | |
| Christina Correia - Officer | Tax withholding / forfeiture | Common Stock | 11,963 footnote F4 | $233.89 | $2.80M | |
| Christina Correia - Officer | Tax withholding / forfeiture | Common Stock | 942 footnote F4 | $233.89 | $220K | |
| Christina Correia - Officer | Grant or award | Market-based Performance Restricted Stock Unit | 1,362 | $0.00 | - | |
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| Timothy Archer - Officer | Gift | Common Stock | 7,080 | $0.00 | - | |
| Eric Brandt - Director | Open-market sale | Common Stock | 17,000 | $220.95 | $3.76M | |
| Eric Brandt - Director | Open-market sale | Common Stock | 18,000 | $230.00 | $4.14M | |
 Anirudh Devgan - Director | Grant or award | Common Stock | 1,141 | $0.00 | - | |
| Douglas R. Bettinger - Officer | Option exercise | Common Stock | 76,920 footnote F1 | $0.00 | - | |
| Douglas R. Bettinger - Officer | Option exercise | Market-based Performance Restricted Stock Unit | 51,280 | $0.00 | - | |
| ||||||
| Christina Correia - Officer | Option exercise | Common Stock | 9,045 footnote F1 | $0.00 | - | |
| Christina Correia - Officer | Option exercise | Market-based Performance Restricted Stock Unit | 6,030 | $0.00 | - | |
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Item 5.02
Item 2.02, 9.01
Item 2.02, 9.01
Recent LRCX Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| BETHANY MAYER | Director | 9,557 | $3.01M | View on EDGAR | |
| ARCHER TIMOTHY | Officer, Director | 30,000 |
Stock trades in LRCX disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 David J. TaylorRepublican, OH-02 | Sale |
LRCX insider trading FAQ
What is the latest insider trade for LRCX?
LAM RESEARCH CORP (LRCX) had 6 insider filings in the last 90 days, with the most recent on 2026-09-10. The full record for LRCX runs to 67 Form 4 filings, the earliest from 2024-10-01. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying LRCX stock?
No insider purchases of LRCX were filed in the last 90 days. 1 purchase is on record for this company.
How many insiders are selling LRCX stock?
7 insider sales of LRCX were filed in the last 90 days, totaling $40.50M.
Where can I see LRCX SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects LRCX Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Industrials companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Timothy Archer view on EDGAR
- - Bethany Mayer view on EDGAR
- - Seshasayee Varadarajan view on EDGAR
- - Ava Harter view on EDGAR
- - Timothy Archer view on EDGAR
- - Ava Harter view on EDGAR
- - Abhijit Y. Talwalkar view on EDGAR
- - Timothy Archer view on EDGAR
- - Eric Brandt view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Industrials
- Where LRCX's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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