Lam Research Corporation (LRCX) Insider Trading
Over the last 3 months, LRCX insiders made 0 open-market buys and 47 sales, a net sale of -$67.5M (SEC Form 4). Over the last 6 months, 1941 institutions increased and 2244 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
47
Net (3m)
-$67.5M
Insider trades by month Buys Sells
Apr
May
Jun
Jul
Aug
Sep
Context3-month price -14.2%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Sep 1, 2026 | Harter Avaofficer: Chief Legal Officer | Sell | 5,000 | $302.46 |
| Aug 7, 2026 | ARCHER TIMOTHYofficer: President and CEO | Sell | 30,000 | $300.00 |
| Aug 7, 2026 | ARCHER TIMOTHYofficer: President and CEO | Option | 30,000 | $30.03 |
| Aug 6, 2026 | Harter Avaofficer: Chief Legal Officer | Tax | 5,790 | $307.42 |
| Jul 14, 2026 | TALWALKAR ABHIJIT Ydirector | Sell | 18,282 | $335.00 |
| Jul 6, 2026 | ARCHER TIMOTHYofficer: President and CEO | Option | 30,000 | $30.03 |
| Jul 6, 2026 | ARCHER TIMOTHYofficer: President and CEO | Sell | 30,000 | $390.01 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 3,644 | $342.91 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 642 | $364.00 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 300 | $355.71 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 3,828 | $359.08 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,277 | $340.68 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 2,300 | $364.41 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 5,803 | $367.01 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,481 | $343.96 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 5,037 | $370.27 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 2,604 | $362.20 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,461 | $354.08 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,393 | $357.24 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,172 | $353.52 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 36 | $350.77 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 5,717 | $362.95 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,600 | $373.09 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 819 | $361.21 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,756 | $361.05 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,895 | $339.75 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,880 | $358.22 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,653 | $356.27 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,906 | $360.15 |
| Jun 15, 2026 | BRANDT ERICdirector | Sell | 1,083 | $338.62 |
Source: LRCX SEC Form 4 filings, latest Sep 1, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their LRCX positions over the last 6 months (SEC Form 13F).
Increased
1941
New positions
1034
Reduced
2244
Sold out
105
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Reduced | 132.9M | May 13, 2026 |
| BlackRock, Inc. | Reduced | 132.8M | Aug 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 81.7M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 81.2M | May 15, 2026 |
| STATE STREET CORP | Increased | 60.7M | Aug 7, 2026 |
| STATE STREET CORP | Reduced | 59.2M | May 15, 2026 |
| Invesco Ltd. | Increased | 52.3M | Aug 14, 2026 |
| JPMORGAN CHASE & CO | Increased | 45.3M | Aug 12, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 37.1M | May 8, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 36.6M | Aug 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 35.2M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 34.5M | Aug 12, 2026 |
| FMR LLC | Increased | 33.7M | Aug 13, 2026 |
| FMR LLC | Increased | 33.6M | May 15, 2026 |
| JPMORGAN CHASE & CO | Increased | 32.7M | May 13, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.