StockCIK 707549
LAM RESEARCH CORP (LRCX): Insider Trades and Fund Holdings
In the past 12 months, LAM RESEARCH CORP insiders reported 0 open-market purchases worth $0 and 5 sales worth $38.6M; 4 of the sales were reported as made under a 10b5-1 trading plan.
0Insider buys, 12 months
$0Bought by insiders, 12 months
$38.6MSold by insiders, 12 months
6Tracked funds holding
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 26, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 26 | Timothy ArcherCEO | ▼ SELL10b5-1 | $7.13M |
| Sep 10 | Timothy ArcherCEO | ▼ SELL10b5-1 | $9.58M |
| Sep 10 | Bethany MayerDirector | ▼ SELL | $3.01M |
| Sep 3 | Seshasayee VaradarajanPresident | ▼ SELL10b5-1 | $17.4M |
| Sep 1 | Ava HarterGeneral Counsel | ▼ SELL10b5-1 | $1.51M |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Timothy Archer | CEO | 0 | $0 | 2 | $16.7M |
| Bethany Mayer | Director | 0 | $0 | 1 | $3.01M |
| Seshasayee Varadarajan | President | 0 | $0 | 1 | $17.4M |
| Ava Harter | General Counsel | 0 | $0 | 1 | $1.51M |
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Tracked funds that report LRCX
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Coatue Management | 9,441,603 | $4.09B | ▼ −6.0% |
| Tiger Global Management | 3,163,495 | $1.37B | ▼ −18.9% |
| Bridgewater Associates | 938,224 | $406.6M | ▼ −40.3% |
| Appaloosa | 382,500 | $165.7M | No change |
| Renaissance Technologies | 31,600 | $13.7M | ▲ +827.8% |
| Duquesne Family Office | 43,600 | $19K | ▲ New |
| Third Point | 0 | $0 | ▼ Sold out |
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →