LRCX insider trading — Lam Research Corp
Over the last 90 days, insiders at Lam Research Corp (LRCX) made 0 open-market purchases worth $0 and 1 open-market sale worth $3.01M, making them net sellers by $3.01M. The largest sale was by Mayer Bethany (Director), who sold 9,557 shares for $3.01M on Sep 9, 2026.
Updated Oct 16, 2026.
Recent LRCX insider transactions
Every Form 4 filed by Lam Research Corp officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 9, 2026 | Archer Timothy | President and CEO | M · Option exercise · 10b5-1 | Direct | 30,000 | $30.03 | $901K | Form 4 |
| Sep 9, 2026 | Archer Timothy | President and CEO | S · Sale · 10b5-1 | Direct | 30,000 | $319.26 | $9.58M | Form 4 |
| Sep 9, 2026 | Mayer Bethany | Director | S · Sale | Indirect | 9,557 | $314.74 | $3.01M | Form 4 |
| Sep 2, 2026 | Varadarajan Seshasayee | Senior Vice President | S · Sale · 10b5-1 | Direct | 59,750 | $291.32 | $17.41M | Form 4 |
| Sep 2, 2026 | Varadarajan Seshasayee | Senior Vice President | M · Option exercise · 10b5-1 | Direct | 39,750 | $39.25 | $1.56M | Form 4 |
| Aug 31, 2026 | Harter Ava | Chief Legal Officer | S · Sale · 10b5-1 | Direct | 5,000 | $302.46 | $1.51M | Form 4 |
| Aug 6, 2026 | Archer Timothy | President and CEO | M · Option exercise · 10b5-1 | Direct | 30,000 | $30.03 | $901K | Form 4 |
| Aug 6, 2026 | Archer Timothy | President and CEO | S · Sale · 10b5-1 | Direct | 30,000 | $300.00 | $9.00M | Form 4 |
| Aug 5, 2026 | Harter Ava | Chief Legal Officer | F · Tax withholding | Direct | 5,790 | $307.42 | $1.78M | Form 4 |
LRCX insider trading FAQ
Are insiders buying LRCX stock?
Not on the open market. In the last 90 days, Lam Research Corp insiders made no open-market purchases, and 1 open-market sale totaling $3.01M. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading LRCX?
Recent sellers: Mayer Bethany.
Where does LRCX insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.