Lam Research Corp. (LRCX) Insider Trading
Directors, officers and holders of more than 10% of LRCX report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 269 transactions on file: 0 with code P, 36 with code S and 14 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 30, 2026 | Kang Ho Kyu | Director | F Tax Payment | 491 | $239.11 | $117,403 |
| Oct 23, 2026 | ARCHER TIMOTHY | President and CEO | M Exercise | 31,400 | Not measured | Not measured |
| Oct 23, 2026 | ARCHER TIMOTHY | President and CEO | S Sale | 31,400 | $227.02 | $7,128,428 |
| Oct 23, 2026 | ARCHER TIMOTHY | President and CEO | M Exercise | 31,400 | $30.03 | $943,036 |
| Sep 9, 2026 | ARCHER TIMOTHY | President and CEO | M Exercise | 30,000 | Not measured | Not measured |
| Sep 9, 2026 | ARCHER TIMOTHY | President and CEO | M Exercise | 30,000 | $30.03 | $900,990 |
| Sep 9, 2026 | Mayer Bethany | Director | S Sale | 9,557 | $314.74 | $3,007,970 |
| Sep 9, 2026 | ARCHER TIMOTHY | President and CEO | S Sale | 30,000 | $319.26 | $9,577,800 |
| Sep 2, 2026 | Varadarajan Seshasayee | Senior Vice President | M Exercise | 12,270 | $59.88 | $734,740 |
| Sep 2, 2026 | Varadarajan Seshasayee | Senior Vice President | S Sale | 27,480 | $291.32 | $8,005,474 |
| Sep 2, 2026 | Varadarajan Seshasayee | Senior Vice President | S Sale | 12,270 | $291.32 | $3,574,496 |
| Sep 2, 2026 | Varadarajan Seshasayee | Senior Vice President | M Exercise | 12,270 | Not measured | Not measured |
| Sep 2, 2026 | Varadarajan Seshasayee | Senior Vice President | M Exercise | 27,480 | $30.03 | $825,307 |
| Sep 2, 2026 | Varadarajan Seshasayee | Senior Vice President | S Sale | 20,000 | $291.32 | $5,826,400 |
| Sep 2, 2026 | Varadarajan Seshasayee | Senior Vice President | M Exercise | 27,480 | Not measured | Not measured |
| Aug 31, 2026 | Harter Ava | Chief Legal Officer | S Sale | 5,000 | $302.46 | $1,512,300 |
| Aug 6, 2026 | ARCHER TIMOTHY | President and CEO | M Exercise | 30,000 | Not measured | Not measured |
| Aug 6, 2026 | ARCHER TIMOTHY | President and CEO | M Exercise | 30,000 | $30.03 | $900,990 |
| Aug 6, 2026 | ARCHER TIMOTHY | President and CEO | S Sale | 30,000 | $300.00 | $9,000,000 |
| Aug 5, 2026 | Harter Ava | Chief Legal Officer | F Tax Payment | 5,790 | $307.42 | $1,779,962 |
| Jul 13, 2026 | TALWALKAR ABHIJIT Y | Director | S Sale | 18,282 | $335.00 | $6,124,470 |
| Jul 2, 2026 | ARCHER TIMOTHY | President and CEO | M Exercise | 30,000 | Not measured | Not measured |
| Jul 2, 2026 | ARCHER TIMOTHY | President and CEO | M Exercise | 30,000 | $30.03 | $900,990 |
| Jul 2, 2026 | ARCHER TIMOTHY | President and CEO | S Sale | 30,000 | $390.01 | $11,700,300 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 1,100 | $357.98 | $393,778 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 4,198 | $369.16 | $1,549,734 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 2,300 | $364.41 | $838,143 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 3,828 | $359.08 | $1,374,558 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 1,393 | $357.24 | $497,635 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 300 | $355.71 | $106,713 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 2,708 | $362.40 | $981,379 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 819 | $361.21 | $295,831 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 7,700 | $372.23 | $2,866,171 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 5,803 | $367.01 | $2,129,759 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 5,037 | $370.27 | $1,865,050 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 1,906 | $360.15 | $686,446 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 2,345 | $363.33 | $852,009 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 1,600 | $373.09 | $596,944 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 4,030 | $368.03 | $1,483,161 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 1,200 | $365.16 | $438,192 |
| Jun 12, 2026 | BRANDT ERIC | Director | S Sale | 8,233 | $371.17 | $3,055,843 |
| Jun 11, 2026 | BRANDT ERIC | Director | S Sale | 5,717 | $362.95 | $2,074,985 |
| Jun 11, 2026 | BRANDT ERIC | Director | S Sale | 2,604 | $362.20 | $943,169 |
| Jun 11, 2026 | BRANDT ERIC | Director | S Sale | 642 | $364.00 | $233,688 |
| Jun 11, 2026 | BRANDT ERIC | Director | S Sale | 780 | $359.24 | $280,207 |
| Jun 11, 2026 | BRANDT ERIC | Director | S Sale | 1,880 | $358.22 | $673,454 |
| Jun 11, 2026 | BRANDT ERIC | Director | S Sale | 664 | $360.24 | $239,199 |
| Jun 11, 2026 | BRANDT ERIC | Director | S Sale | 1,653 | $356.27 | $588,914 |
| Jun 11, 2026 | BRANDT ERIC | Director | S Sale | 1,756 | $361.05 | $634,004 |
| Jun 11, 2026 | BRANDT ERIC | Director | S Sale | 1,455 | $357.06 | $519,522 |
The full Form 4 history is on the LRCX company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.