// company-profile
Lam Research Corp Insider Trading
LRCXEvery SEC Form 4 insider trading filing for Lam Research Corp (LRCX) — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC.
curl "https://api.form4api.com/v1/transactions?ticker=LRCX" -H "X-Api-Key: YOUR_API_KEY"// activity-summary
Mixed insider activity over the last 30 days: 1 purchase and 1 sale (2 transactions total).
// 90-day insight
Over the last 90 days, Lam Research Corp insiders bought $0 (2 transactions) and sold $1.8M (1 transaction).
- Most active insider: BRANDT ERIC with 42 transactions totaling $38.2M.
- Largest single sale: $11.7M by ARCHER TIMOTHY on Jul 2, 2026.
- 98% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Lam Research Corp as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 6, 2026 | ARCHER TIMOTHY | LRCX | Option Exercise | 30,000 | $0.00 | $0K |
| Aug 6, 2026 | ARCHER TIMOTHY | LRCX | Sale10b5 | 30,000 | $300.00 | $9.00M |
| Aug 6, 2026 | ARCHER TIMOTHY | LRCX | Option Exercise10b5 | 30,000 | $30.03 | $901K |
| Aug 5, 2026 | Harter Ava | LRCX | Tax Withholding | 5,790 | $307.42 | $1.78M |
| Jul 13, 2026 | TALWALKAR ABHIJIT Y | LRCX | Sale10b5 | 18,282 | $335.00 | $6.12M |
45 more transactions hidden
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