InsiderSource
LRCX

LAM RESEARCH CORP

SEC CIK 707549
$362.52 +57.7% · 90 days
90-day buys
$0
0 open-market
90-day sells
$8.56M
3 open-market
Net insider flow
−$8.56M
Net selling
Filings shown
63
Most recent

At a glance

Over the last 90 days, insiders at LRCX have sold a net $8.56M of stock (0 open-market buys vs 3 sells).

Largest recent trade: Bettinger Douglas R sold $11.21M of LRCX, trimming their stake 4%.

Most active filer: Bettinger Douglas R, with 13 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for LRCX, newest first
View on SEC EDGAR ↗
LRCX
LAM RESEARCH CORP
Sell Fernandes Neil J · Senior Vice President · Open-market sale · filed 1w ago ΔOwn −12%

Fernandes Neil J sold $2.37M of LRCX, trimming their stake 12%.

−$2.37M
7,659 sh @ $310
LRCX
LAM RESEARCH CORP
Sell Fernandes Neil J · Senior Vice President · Open-market sale · filed May 4, 2026 ΔOwn −22%

Fernandes Neil J sold $4.64M of LRCX, trimming their stake 22%.

−$4.64M
18,170 sh @ $255
LRCX
LAM RESEARCH CORP
Option exercise Harter Ava · Chief Legal Officer · Option exercise · filed Apr 28, 2026 ΔOwn +11%
+$463K
6,010 sh @ $77
LRCX
LAM RESEARCH CORP
Sell Harter Ava · Chief Legal Officer · Open-market sale · filed Apr 28, 2026 ΔOwn −10%

Harter Ava sold $1.55M of LRCX, trimming their stake 10%.

−$1.55M
6,010 sh @ $259
LRCX
LAM RESEARCH CORP
Tax withholding Vahedi Vahid · Senior Vice President · Tax withholding · filed Mar 2, 2026 ΔOwn −1.2%
−$791K
3,382 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding Harter Ava · Chief Legal Officer · Tax withholding · filed Mar 2, 2026 ΔOwn −5.2%
−$748.2K
3,199 sh @ $234
LRCX
LAM RESEARCH CORP
Sell Bettinger Douglas R · Chief Financial Officer & EVP · Open-market sale · filed Mar 5, 2026 ΔOwn −4.4%

Bettinger Douglas R sold $11.21M of LRCX, trimming their stake 4%.

−$11.21M
50,057 sh @ $224
LRCX
LAM RESEARCH CORP
Sell Harter Ava · Chief Legal Officer · Open-market sale · filed Mar 5, 2026 ΔOwn −2.7%

Harter Ava sold $334K of LRCX, trimming their stake 3%.

−$334K
1,500 sh @ $223
LRCX
LAM RESEARCH CORP
Sell Bettinger Douglas R · Chief Financial Officer & EVP · Open-market sale · filed Mar 3, 2026 ΔOwn −3.7%

Bettinger Douglas R sold $9.28M of LRCX, trimming their stake 4%.

−$9.28M
40,329 sh @ $230
LRCX
LAM RESEARCH CORP
Sell Harter Ava · Chief Legal Officer · Open-market sale · filed Mar 3, 2026 ΔOwn −6.8%

Harter Ava sold $930K of LRCX, trimming their stake 7%.

−$930K
4,000 sh @ $233
LRCX
LAM RESEARCH CORP
Tax withholding Vahedi Vahid · Senior Vice President · Tax withholding · filed Mar 2, 2026 ΔOwn −8.0%
−$5.77M
24,675 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding Vahedi Vahid · Senior Vice President · Tax withholding · filed Mar 2, 2026 ΔOwn −1.0%
−$700.3K
2,994 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding Vahedi Vahid · Senior Vice President · Tax withholding · filed Mar 2, 2026 ΔOwn −0.7%
−$449.8K
1,923 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding Harter Ava · Chief Legal Officer · Tax withholding · filed Mar 2, 2026 ΔOwn −3.1%
−$465K
1,988 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding ARCHER TIMOTHY · President and CEO · Tax withholding · filed Mar 2, 2026 ΔOwn −11%
−$31.49M
134,624 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding ARCHER TIMOTHY · President and CEO · Tax withholding · filed Mar 2, 2026 ΔOwn −0.9%
−$2.33M
9,975 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding ARCHER TIMOTHY · President and CEO · Tax withholding · filed Mar 2, 2026 ΔOwn −0.7%
−$1.9M
8,111 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding ARCHER TIMOTHY · President and CEO · Tax withholding · filed Mar 2, 2026 ΔOwn −1.8%
−$4.58M
19,584 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding LORD PATRICK J · Executive Vice President · Tax withholding · filed Mar 2, 2026 ΔOwn −23%
−$7.35M
31,406 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding LORD PATRICK J · Executive Vice President · Tax withholding · filed Mar 2, 2026 ΔOwn −2.2%
−$543.8K
2,325 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding LORD PATRICK J · Executive Vice President · Tax withholding · filed Mar 2, 2026 ΔOwn −1.7%
−$410.5K
1,755 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding LORD PATRICK J · Executive Vice President · Tax withholding · filed Mar 2, 2026 ΔOwn −4.3%
−$1.05M
4,469 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding Correia Christina · CVP , Chief Accounting Officer · Tax withholding · filed Mar 2, 2026 ΔOwn −5.6%
−$1.01M
4,306 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding Correia Christina · CVP , Chief Accounting Officer · Tax withholding · filed Mar 2, 2026 ΔOwn −17%
−$2.8M
11,963 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding Correia Christina · CVP , Chief Accounting Officer · Tax withholding · filed Mar 2, 2026 ΔOwn −1.6%
−$220.3K
942 sh @ $234
LRCX
LAM RESEARCH CORP
Tax withholding Correia Christina · CVP , Chief Accounting Officer · Tax withholding · filed Mar 2, 2026 ΔOwn −2.4%
−$332.4K
1,421 sh @ $234
LRCX
LAM RESEARCH CORP
Sell BRANDT ERIC · Director · Open-market sale · filed Feb 9, 2026 ΔOwn −5.9%

Brandt Eric sold $3.76M of LRCX, trimming their stake 6%.

−$3.76M
17,000 sh @ $221
LRCX
LAM RESEARCH CORP
Sell BRANDT ERIC · Director · Open-market sale · filed Feb 9, 2026 ΔOwn −6.6%

Brandt Eric sold $4.14M of LRCX, trimming their stake 7%.

−$4.14M
18,000 sh @ $230

About LRCX insider activity

This page tracks every recent Form 4 filed for LAM RESEARCH CORP with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is LRCX insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for LAM RESEARCH CORP usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.