Lam Research
Makes deposition, etch, clean, and dry-resist tools for semiconductor fabs.
$303.48
After-hours close+1.53 (+0.51%)
At close$301.95(−5.22%)
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Breakdown13F · Form 4
Institutions 151.98%Insiders 0.28%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 1.25B · Float 1.25B · 99.7% free float
Institutions13F, as of Jun 30, 2026
3,223 holders · 1.90B shares · 631 new positions · 1,686 increased · 1,157 reduced · 135 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 132.73M | 10.61% | −124.5K | Aug 7, 2026 |
| Vanguard Capital Management LLC | 81.68M | 6.53% | +527.9K | Aug 13, 2026 |
| State Street Corp | 60.70M | 4.85% | +1.55M | Aug 7, 2026 |
| Invesco Ltd. | 52.32M | 4.18% | +26.11M | Aug 14, 2026 |
| JPMorgan Chase & Co | 45.32M | 3.62% | +12.60M | Aug 12, 2026 |
| Vanguard Portfolio Management LLC | 36.64M | 2.93% | −425.4K | Aug 13, 2026 |
| Geode Capital Management, LLC | 34.51M | 2.76% | −669.7K | Aug 12, 2026 |
| FMR LLC | 33.68M | 2.69% | +103.0K | Aug 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Vanguard Capital Management | 7.49% | 93.58M | 13G | Apr 30, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Douglas R. Bettinger | officer: Chief Financial Officer & EVP | 1.08M | 0.09% | Mar 5, 2026 |
| Timothy Archer | officer: President and CEO | 1.08M | 0.09% | Aug 7, 2026 |
| Vahid Vahedi | officer: Senior Vice President | 276.9K | 0.02% | Mar 2, 2026 |
| Seshasayee Varadarajan | officer: Senior Vice President | 225.2K | 0.02% | Mar 2, 2026 |
| Michael R. Cannon | director | 191.4K | 0.02% | Nov 10, 2025 |
| Eric Brandt | director | 144.7K | 0.01% | Jun 15, 2026 |
| Patrick J. Lord | officer: Executive Vice President | 98.8K | 0.01% | Mar 2, 2026 |
| Karthikeyan Rammohan | officer: SVP, Global Ops & Ent Solns | 96.5K | 0.01% | Mar 10, 2026 |
| Abhijit Y. Talwalkar | director | 87.1K | 0.01% | Jul 14, 2026 |
| Neil J. Fernandes | officer: Senior Vice President | 58.5K | 0.00% | Jun 2, 2026 |
27 people have not refiled in the last 18 months (8.77M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 6, 2026 | Timothy Archerofficer: President and CEO | Sale | 30,000 | $300.00 | 1,075,966 |
| Jul 13, 2026 | Abhijit Y. Talwalkardirector | Sale | 18,282 | $335.00 | 87,142 |
| Jul 2, 2026 | Timothy Archerofficer: President and CEO | Sale | 30,000 | $390.01 | 1,075,966 |
| Jun 11, 2026 | Eric Brandtdirector | Sale · 26 lots | 54,500 | $350.80 | 199,205 |
| Jun 12, 2026 | Eric Brandtdirector | Sale · 17 lots | 54,500 | $367.18 | 144,705 |
| Jun 1, 2026 | Neil J. Fernandesofficer: Senior Vice President | Sale | 7,659 | $309.60 | 58,470 |
| May 1, 2026 | Neil J. Fernandesofficer: Senior Vice President | Sale | 18,170 | $255.14 | 66,129 |
| Apr 27, 2026 | Ava Harterofficer: Chief Legal Officer | Sale | 6,010 | $258.66 | 53,205 |
| Mar 4, 2026 | Ava Harterofficer: Chief Legal Officer | Sale | 1,500 | $222.66 | 53,205 |
| Mar 4, 2026 | Douglas R. Bettingerofficer: Chief Financial Officer & EVP | Sale | 50,057 | $224.03 | 1,081,705 |
CongressHouse and Senate disclosures
| Member | Type | Amount | Owner | Traded | Disclosed |
|---|---|---|---|---|---|
| Rep. David Taylor · OH02 | Sale | $1,001 – $15,000 | Jun 5, 2026 | Jun 15, 2026 ↗ | |
| Rep. David Taylor · OH02 | Sale | $1,001 – $15,000 | Apr 27, 2026 | May 8, 2026 ↗ | |
| Rep. David Taylor · OH02 | Sale | $1,001 – $15,000 | Apr 27, 2026 | May 8, 2026 ↗ | |
| Sen. John Boozman · AR | Sale | $1,001 – $15,000 | Joint | Jan 8, 2026 | Feb 15, 2026 ↗ |