Lam Research Corp. engages in the design, manufacture, marketing, refurbishment, and provision of semiconductor processing equipment used in the fabrication of integrated circuits. It operates through the following geographical segments: United States, China, Europe, Japan, Korea, Southeast Asia and Taiwan. The company was founded by David K. Lam in 1980 and is headquartered in Fremont, CA. |  |
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| Insider Trading |
Relationship |
Date |
Transaction |
Cost |
#Shares |
Value ($) |
#Shares Total |
SEC Form 4 |
| Bettinger Douglas R | Officer | Mar 02 '26 | Proposed Sale | 230.22 | 40,329 | 9,284,673 | | Mar 02 04:32 PM | | Harter Ava | Officer | Mar 02 '26 | Proposed Sale | 232.50 | 4,000 | 930,000 | | Mar 02 01:02 PM | | BRANDT ERIC | Director | Feb 06 '26 | Sale | 225.60 | 35,000 | 7,896,150 | 253,705 | Feb 09 02:00 PM | | BRANDT ERIC | Director | Feb 06 '26 | Proposed Sale | 225.60 | 35,000 | 7,896,150 | | Feb 06 03:17 PM | | Bettinger Douglas R | Chief Financial Officer & EVP | Feb 03 '26 | Option Exercise | 0.00 | 76,920 | 0 | 1,064,157 | Feb 05 11:35 AM | | Correia Christina | CVP , Chief Accounting Officer | Feb 03 '26 | Option Exercise | 0.00 | 9,045 | 0 | 60,637 | Feb 05 11:34 AM | | Fernandes Neil J | Senior Vice President | Feb 03 '26 | Option Exercise | 0.00 | 21,570 | 0 | 92,768 | Feb 05 11:33 AM | | LORD PATRICK J | Executive Vice President | Feb 03 '26 | Option Exercise | 0.00 | 63,345 | 0 | 138,803 | Feb 05 11:33 AM | | Vahedi Vahid | Senior Vice President | Feb 03 '26 | Option Exercise | 0.00 | 49,770 | 0 | 300,817 | Feb 05 11:32 AM | | Varadarajan Seshasayee | Senior Vice President | Feb 03 '26 | Option Exercise | 0.00 | 53,925 | 0 | 249,564 | Feb 05 11:32 AM | | ARCHER TIMOTHY | President and CEO | Feb 04 '26 | Option Exercise | 0.00 | 271,530 | 0 | 1,203,939 | Feb 05 11:30 AM | | ARCHER TIMOTHY | President and CEO | Dec 17 '25 | Option Exercise | 17.68 | 113,300 | 2,002,578 | 1,045,709 | Dec 18 12:55 PM | | ARCHER TIMOTHY | President and CEO | Dec 17 '25 | Sale | 163.86 | 163,300 | 26,758,338 | 932,409 | Dec 18 12:55 PM | | ARCHER TIMOTHY | Officer | Dec 17 '25 | Proposed Sale | 163.86 | 163,300 | 26,758,338 | | Dec 17 09:46 AM | | Bettinger Douglas R | Chief Financial Officer & EVP | Nov 14 '25 | Sale | 150.60 | 40,080 | 6,036,048 | 987,237 | Nov 17 12:58 PM | | Bettinger Douglas R | Officer | Nov 14 '25 | Proposed Sale | 150.60 | 40,080 | 6,036,107 | | Nov 14 03:34 PM | | Mayer Bethany | Director | Nov 07 '25 | Sale | 159.52 | 30 | 4,786 | 3,257 | Nov 10 04:27 PM | | Mayer Bethany | Director | Nov 07 '25 | Proposed Sale | 159.52 | 30 | 4,786 | | Nov 07 09:50 AM | | Mayer Bethany | Director | Nov 03 '25 | Sale | 159.99 | 1,298 | 207,667 | 1,652 | Nov 04 06:05 PM | | Mayer Bethany | Director | Nov 03 '25 | Proposed Sale | 159.99 | 1,298 | 207,667 | | Nov 03 10:34 AM | | Harter Ava | Chief Legal Officer | Oct 27 '25 | Option Exercise | 77.04 | 6,010 | 463,004 | 62,796 | Oct 28 11:53 AM | | Harter Ava | Chief Legal Officer | Oct 27 '25 | Sale | 157.47 | 9,010 | 1,418,775 | 56,786 | Oct 28 11:53 AM | | Harter Ava | Officer | Oct 27 '25 | Proposed Sale | 157.47 | 9,010 | 1,418,775 | | Oct 27 01:10 PM | | Vahedi Vahid | Senior Vice President | Oct 13 '25 | Sale | 138.90 | 52,190 | 7,249,191 | 251,047 | Oct 14 11:40 AM | | Vahedi Vahid | Officer | Oct 13 '25 | Proposed Sale | 138.90 | 52,190 | 7,249,191 | | Oct 14 07:22 AM |
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