🕵️ LAM Research Corp ($LRCX)
SEC insider & ownership activity, last 12 months · CIK 707549 · every row links its SEC filing
Over the last 12 months insiders sold $177.4M with no open-market buying against it. Archer Timothy sold $57.0M through a 10b5-1 trading plan in 5 lots (Dec–Sep). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 9 sellers, $177.4M (69 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Archer Timothy | 0 | – | 5 | $57.0M | Sep 9, 2026 |
| Brandt Eric | 0 | – | 45 | $47.0M | Jun 12, 2026 |
| Douglas R. Bettinger | 0 | – | 3 | $26.5M | Mar 4, 2026 |
| Varadarajan Seshasayee | 0 | – | 3 | $17.4M | Sep 2, 2026 |
| Vahedi Vahid | 0 | – | 1 | $7.2M | Oct 13, 2025 |
| Neil J. Fernandes | 0 | – | 2 | $7.0M | Jun 1, 2026 |
| Abhijit Y. Talwalkar | 0 | – | 1 | $6.1M | Jul 13, 2026 |
| Harter Ava | 0 | – | 6 | $5.7M | Aug 31, 2026 |
| Mayer Bethany | 0 | – | 3 | $3.2M | Sep 9, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Vanguard Capital Management | 7.5% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Bethany Mayer | $3.0M | Sep 9, 2026 | filing ↗ |
| Archer Timothy | $9.6M | Sep 9, 2026 | filing ↗ |
| Varadarajan Seshasayee | $17.4M | Sep 2, 2026 | filing ↗ |
| Harter Ava | $1.5M | Aug 31, 2026 | filing ↗ |
| Archer Timothy | $9.0M | Aug 6, 2026 | filing ↗ |
| Abhijit Y. Talwalkar | $6.1M | Jul 13, 2026 | filing ↗ |
| Archer Timothy | $11.7M | Jul 2, 2026 | filing ↗ |
| Brandt Eric | $19.6M | Jun 12, 2026 | filing ↗ |
| Brandt Eric | $19.1M | Jun 11, 2026 | filing ↗ |
| Neil J. Fernandes | $2.4M | Jun 1, 2026 | filing ↗ |
| Patrick J. Lord | $17.9M | May 14, 2026 | filing ↗ |
| Neil J. Fernandes | $4.6M | May 1, 2026 | filing ↗ |
| Harter Ava | $1.6M | Apr 27, 2026 | filing ↗ |
| Harter Ava | $334K | Mar 4, 2026 | filing ↗ |
| Douglas R. Bettinger | $11.2M | Mar 4, 2026 | filing ↗ |
| Douglas R. Bettinger | $9.3M | Mar 2, 2026 | filing ↗ |
| Harter Ava | $930K | Mar 2, 2026 | filing ↗ |
| Brandt Eric | $7.9M | Feb 6, 2026 | filing ↗ |
| Archer Timothy | $26.8M | Dec 17, 2025 | filing ↗ |
| Douglas R. Bettinger | $6.0M | Nov 14, 2025 | filing ↗ |
| Mayer Bethany | $5K | Nov 7, 2025 | filing ↗ |
| Mayer Bethany | $208K | Nov 3, 2025 | filing ↗ |
| Harter Ava | $1.4M | Oct 27, 2025 | filing ↗ |
| Vahedi Vahid | $7.2M | Oct 13, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Aug 24, 2026 | filing ↗ |
| Earnings (2.02) | Jul 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2026 | filing ↗ |
| Earnings (2.02) | Apr 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 22, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 30, 2026 | filing ↗ |
| Earnings (2.02) | Jan 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 28, 2026 | filing ↗ |
| Material Modifications to Rights of Security Holders (3.03) | Nov 4, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 4, 2025 | filing ↗ |
| Charter/bylaw changes (5.03) | Nov 4, 2025 | filing ↗ |
| Shareholder vote (5.07) | Nov 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 4, 2025 | filing ↗ |
| Earnings (2.02) | Oct 22, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 22, 2025 | filing ↗ |