As of the latest Form 4 filed Jun 15, 2026.
What Lam Research Corp insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 59 most recent filings for LRCX.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-15 | 2026-06-12 | BRANDT ERIC Director | SSale | −1.60K | $373.09 | $597K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −7.70K | $372.23 | $2.87M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −8.23K | $371.17 | $3.06M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −5.04K | $370.27 | $1.87M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −4.20K | $369.16 | $1.55M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −4.03K | $368.03 | $1.48M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −5.80K | $367.01 | $2.13M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −1.20K | $365.16 | $438K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −2.30K | $364.41 | $838K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −2.35K | $363.33 | $852K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −2.71K | $362.40 | $981K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −819.00 | $361.21 | $296K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −1.91K | $360.15 | $686K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −3.83K | $359.08 | $1.37M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −1.10K | $357.98 | $394K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −1.39K | $357.24 | $498K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-12 | BRANDT ERIC, Director | SSale | −300.00 | $355.71 | $107K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC Director | SSale | −642.00 | $364.00 | $234K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −5.72K | $362.95 | $2.07M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −2.60K | $362.20 | $943K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.76K | $361.05 | $634K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −664.00 | $360.24 | $239K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −780.00 | $359.24 | $280K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.88K | $358.22 | $673K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.46K | $357.06 | $520K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.65K | $356.27 | $589K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.33K | $355.50 | $473K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.46K | $354.08 | $517K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.17K | $353.52 | $414K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −36.00 | $350.77 | $12.6K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.52K | $349.79 | $531K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −4.33K | $348.73 | $1.51M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −6.59K | $347.86 | $2.29M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −3.44K | $346.79 | $1.19M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −2.83K | $345.84 | $979K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −3.21K | $344.92 | $1.11M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.48K | $343.96 | $509K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −3.64K | $342.91 | $1.25M | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.07K | $341.81 | $366K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.28K | $340.68 | $435K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.90K | $339.75 | $644K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −1.08K | $338.62 | $367K | Yes (planned) | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BRANDT ERIC, Director | SSale | −974.00 | $337.56 | $329K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Fernandes Neil J Senior Vice President | SSale | −7.66K | $309.60 | $2.37M | Yes (planned) | Form 4 ↗ |
| 2026-05-04 | 2026-05-01 | Fernandes Neil J Senior Vice President | SSale | −18.2K | $255.14 | $4.64M | Yes (planned) | Form 4 ↗ |
| 2026-04-28 | 2026-04-27 | Harter Ava Chief Legal Officer | SSale | −6.01K | $258.66 | $1.55M | No | Form 4 ↗ |
| 2026-04-28 | 2026-04-27 | Harter Ava, Chief Legal Officer | MExercise | +6.01K | $77.04 | $463K | No | Form 4 ↗ |
| 2026-03-11 | 2026-03-10 | TALWALKAR ABHIJIT Y Director | GGift | −4.57K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-25 | 2026-02-24 | ARCHER TIMOTHY President and CEO | GGift | −7.08K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-09 | 2026-02-06 | DEVGAN ANIRUDH Director | AAward | +1.14K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-09 | 2026-02-06 | BRANDT ERIC Director | SSale | −18.0K | $230.00 | $4.14M | No | Form 4 ↗ |
| 2026-02-09 | 2026-02-06 | BRANDT ERIC, Director | SSale | −17.0K | $220.95 | $3.76M | No | Form 4 ↗ |
| 2026-02-05 | 2026-02-04 | ARCHER TIMOTHY President and CEO | MExercise | +272K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-05 | 2026-02-03 | Correia Christina CVP , Chief Accounting Officer | MExercise | +9.04K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-05 | 2026-02-03 | Fernandes Neil J Senior Vice President | MExercise | +21.6K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-05 | 2026-02-03 | Varadarajan Seshasayee Senior Vice President | MExercise | +53.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-05 | 2026-02-03 | Vahedi Vahid Senior Vice President | MExercise | +49.8K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-05 | 2026-02-03 | Bettinger Douglas R Chief Financial Officer & EVP | MExercise | +76.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-05 | 2026-02-03 | LORD PATRICK J Executive Vice President | MExercise | +63.3K | $0.00 | $0.00 | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also LRCX’s full analysis or the market-wide insider trading feed. The tabs above jump to LRCX’s other SEC data.
Source: SEC Form 4 filings for LRCX, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.