Company · CIK 0000707549 · SIC 3559 — Special Industry Machinery, NEC · Nasdaq
LAM RESEARCH CORP · LRCX
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 9, 2026 SForm 4 → | Sep 10, 1:05 pm EDT | Timothy ArcherPresident and CEO | 30,000 | $319.26 | $9,577,800 | 1,075,966 | −2.71% | 10b5-1 |
| Sep 9, 2026 MForm 4 → | Sep 10, 1:05 pm EDT | Timothy ArcherPresident and CEO | 30,000 | $30.03 | $900,990 | 1,105,966 | — | 10b5-1 |
| Sep 9, 2026 SForm 4 → | Sep 10, 1:04 pm EDT | Bethany MayerDirector | 9,557 | $314.74 | $3,007,970 | 20,995 | −31.3% | |
| Sep 2, 2026 MForm 4 → | Sep 3, 3:06 pm EDT | Seshasayee VaradarajanSenior Vice President | 39,750 | $39.25 | $1,560,047 | 233,026 | — | 10b5-1 |
| Sep 2, 2026 SForm 4 → | Sep 3, 3:06 pm EDT | Seshasayee VaradarajanSenior Vice President | 59,750 | $291.32 | $17,406,370 | 205,546 | −22.5% | 10b5-1 |
| Aug 31, 2026 SForm 4 → | Sep 1, 12:08 pm EDT | Ava HarterChief Legal Officer | 5,000 | $302.46 | $1,512,300 | 42,462 | −10.5% | 10b5-1 |
| Aug 6, 2026 SForm 4 → | Aug 7, 1:24 pm EDT | Timothy ArcherPresident and CEO | 30,000 | $300.00 | $9,000,000 | 1,075,966 | −2.71% | 10b5-1 |
| Aug 6, 2026 MForm 4 → | Aug 7, 1:24 pm EDT | Timothy ArcherPresident and CEO | 30,000 | $30.03 | $900,990 | 1,105,966 | — | 10b5-1 |
| Aug 5, 2026 FForm 4 → | Aug 6, 11:39 am EDT | Ava HarterChief Legal Officer | 5,790 | $307.42 | $1,779,962 | 47,462 | — | |
| Jul 13, 2026 SForm 4 → | Jul 14, 12:56 pm EDT | Abhijit Y TalwalkarDirector | 18,282 | $335.00 | $6,124,470 | 87,142 | −17.3% | 10b5-1 |
| Jul 2, 2026 SForm 4 → | Jul 6, 12:33 pm EDT | Timothy ArcherPresident and CEO | 30,000 | $390.01 | $11,700,300 | 1,075,966 | −2.71% | 10b5-1 |
| Jul 2, 2026 MForm 4 → | Jul 6, 12:33 pm EDT | Timothy ArcherPresident and CEO | 30,000 | $30.03 | $900,990 | 1,105,966 | — | 10b5-1 |
| Jun 12, 2026 SForm 4 → | Jun 15, 7:33 pm EDT | Eric BrandtDirector | 54,500 | $367.18 | $20,011,346 | 144,705 | −27.4% | 10b5-1 |
| Jun 11, 2026 SForm 4 → | Jun 15, 12:27 pm EDT | Eric BrandtDirector | 54,500 | $350.80 | $19,118,360 | 199,205 | −21.5% | 10b5-1 |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 9, 2026 MForm 4 → | Sep 10, 1:05 pm EDT | Timothy ArcherPresident and CEO | 30,000 | — | — | 31,400 | — | 10b5-1 |
| Sep 2, 2026 MForm 4 → | Sep 3, 3:06 pm EDT | Seshasayee VaradarajanSenior Vice President | 39,750 | — | — | 0 | — | 10b5-1 |
| Aug 6, 2026 MForm 4 → | Aug 7, 1:24 pm EDT | Timothy ArcherPresident and CEO | 30,000 | — | — | 61,400 | — | 10b5-1 |
| Jul 2, 2026 MForm 4 → | Jul 6, 12:33 pm EDT | Timothy ArcherPresident and CEO | 30,000 | — | — | 91,400 | — | 10b5-1 |