19 insiders reported 144 Form 4 transactions for LAM RESEARCH CORP (LRCX) over the past 18 months (most recent 2026-07-06). Recent activity: ARCHER TIMOTHY (President and CEO) Buy 30,000 shares, ARCHER TIMOTHY (President and CEO) Sell 30,000 shares, Fernandes Neil J (Senior Vice President) Sell 7,659 shares, Harter Ava (Chief Legal Officer) Buy 6,010 shares, Harter Ava (Chief Legal Officer) Sell 6,010 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-06 | ARCHER TIMOTHY | President and CEO | Buy | 30,000 | $900,990 |
| 2026-07-06 | ARCHER TIMOTHY | President and CEO | Sell | 30,000 | $11.7M |
| 2026-06-02 | Fernandes Neil J | Senior Vice President | Sell | 7,659 | $2.4M |
| 2026-04-28 | Harter Ava | Chief Legal Officer | Buy | 6,010 | $463,004 |
| 2026-04-28 | Harter Ava | Chief Legal Officer | Sell | 6,010 | $1.6M |
| 2026-03-11 | TALWALKAR ABHIJIT Y | Director | Sell | 4,571 | $0 |
| 2026-03-05 | Bettinger Douglas R | Chief Financial Officer & EVP | Buy | 51,270 | $2.5M |
| 2026-03-05 | Bettinger Douglas R | Chief Financial Officer & EVP | Buy | 26,480 | $2.6M |
| 2026-03-05 | Bettinger Douglas R | Chief Financial Officer & EVP | Sell | 50,057 | $11.2M |
| 2026-03-05 | Harter Ava | Chief Legal Officer | Sell | 1,500 | $333,990 |
| 2026-03-03 | Harter Ava | Chief Legal Officer | Sell | 4,000 | $930,000 |
| 2026-03-03 | Bettinger Douglas R | Chief Financial Officer & EVP | Buy | 16,620 | $995,206 |
| 2026-03-03 | Bettinger Douglas R | Chief Financial Officer & EVP | Buy | 37,980 | $2.1M |
| 2026-03-03 | Bettinger Douglas R | Chief Financial Officer & EVP | Buy | 11,710 | $351,651 |
| 2026-03-03 | Bettinger Douglas R | Chief Financial Officer & EVP | Sell | 40,329 | $9.3M |
| 2026-03-02 | LORD PATRICK J | Executive Vice President | Sell | 31,406 | $7.3M |
| 2026-03-02 | ARCHER TIMOTHY | President and CEO | Sell | 134,624 | $31.5M |
| 2026-03-02 | ARCHER TIMOTHY | President and CEO | Sell | 9,975 | $2.3M |
| 2026-03-02 | ARCHER TIMOTHY | President and CEO | Sell | 8,111 | $1.9M |
| 2026-03-02 | ARCHER TIMOTHY | President and CEO | Sell | 19,584 | $4.6M |
| 2026-03-02 | ARCHER TIMOTHY | President and CEO | Buy | 51,053 | $0 |
| 2026-03-02 | LORD PATRICK J | Executive Vice President | Sell | 2,325 | $543,794 |
| 2026-03-02 | LORD PATRICK J | Executive Vice President | Sell | 1,755 | $410,477 |
| 2026-03-02 | LORD PATRICK J | Executive Vice President | Sell | 4,469 | $1.0M |
| 2026-03-02 | Correia Christina | CVP , Chief Accounting Officer | Buy | 3,180 | $0 |
Source: SEC Form 4 filings · as of 2026-07-06