CIK 0000707549 · Large accelerated filer
LAM RESEARCH CORP
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- LRCX
- Exchange
- Nasdaq
- Industry
- Special Industry Machinery, NEC
- FY end
- Jun 27
- Incorporated
- DE
- Entity type
- operating
- EIN
- 942634797
- Phone
- 5106590200
- Business address
- 4650 CUSHING BLVD, FREMONT, CA, 94538
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $38,810,626
- in 7 filings, $35.8M under 10b5-1 plans
Net −$38,810,626. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-09-09 | ARCHER TIMOTHY President and CEO | Option exercise · Employee Stock Option (Right to Buy) 10b5-1 | −30,000 | 31,400 | ||
| 2026-09-02 | Varadarajan Seshasayee Senior Vice President | Sale 10b5-1 | −20,000 | $291.32 | $5.8M | 205,546 |
| 2026-09-02 | Varadarajan Seshasayee Senior Vice President | Option exercise 10b5-1 | +12,270 | $59.88 | $735K | 217,816 |
| 2026-09-02 | Varadarajan Seshasayee Senior Vice President | Sale 10b5-1 | −12,270 | $291.32 | $3.6M | 205,546 |
| 2026-09-02 | Varadarajan Seshasayee Senior Vice President | Option exercise 10b5-1 | +27,480 | $30.03 | $825K | 233,026 |
| 2026-09-02 | Varadarajan Seshasayee Senior Vice President | Sale 10b5-1 | −27,480 | $291.32 | $8.0M | 205,546 |
| 2026-09-02 | Varadarajan Seshasayee Senior Vice President | Option exercise · Employee Stock Option (Right to Buy) 10b5-1 | −12,270 | 0 | ||
| 2026-09-02 | Varadarajan Seshasayee Senior Vice President | Option exercise · Employee Stock Option (Right to Buy) 10b5-1 | −27,480 | 0 | ||
| 2026-08-31 | Harter Ava Chief Legal Officer | Sale 10b5-1 | −5,000 | $302.46 | $1.5M | 42,462.46 |
| 2026-08-06 | ARCHER TIMOTHY President and CEO | Option exercise 10b5-1 | +30,000 | $30.03 | $901K | 1,105,966 |
| 2026-08-06 | ARCHER TIMOTHY President and CEO | Sale 10b5-1 | −30,000 | $300.00 | $9.0M | 1,075,966 |
| 2026-08-06 | ARCHER TIMOTHY President and CEO | Option exercise · Employee Stock Option (Right to Buy) 10b5-1 | −30,000 | 61,400 | ||
| 2026-08-05 | Harter Ava Chief Legal Officer | Shares withheld for taxes | −5,790 | $307.42 | $1.8M | 47,462.46 |
| 2026-07-13 | TALWALKAR ABHIJIT Y Director | Sale 10b5-1 | −18,282 | $335.00 | $6.1M | 87,142 |
| 2026-07-02 | ARCHER TIMOTHY President and CEO | Option exercise 10b5-1 | +30,000 | $30.03 | $901K | 1,105,966 |
| 2026-07-02 | ARCHER TIMOTHY President and CEO | Sale 10b5-1 | −30,000 | $390.01 | $11.7M | 1,075,966 |
| 2026-07-02 | ARCHER TIMOTHY President and CEO | Option exercise · Employee Stock Option (Right to Buy) 10b5-1 | −30,000 | 91,400 | ||
| 2026-06-12 | BRANDT ERIC Director | Sale 10b5-1 | −300 | $355.71 | $107K | 198,905 |
| 2026-06-12 | BRANDT ERIC Director | Sale 10b5-1 | −1,393 | $357.24 | $498K | 197,512 |
| 2026-06-12 | BRANDT ERIC Director | Sale 10b5-1 | −1,100 | $357.98 | $394K | 196,412 |
Page 2 of 58 · 1,143 trades