As of the latest Form 4 filed Jul 2, 2026.
What KLA Corporation 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 15 most recent filings for KLAC.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-02 | 2026-07-01 | Wilkinson Mary Beth EVP, CLO and Secretary | SSale | −14.4K | $285.30 | $4.11M | Yes (planned) | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | Lorig Brian EVP, KLA Global Services | FTax | −12.2K | $278.39 | $3.40M | No | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | Lorig Brian, EVP, KLA Global Services | JOther | +196.16 | $108.33 | $21.3K | No | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | Higgins Bren D. EVP & Chief Financial Officer | FTax | −30.6K | $278.39 | $8.51M | No | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | Higgins Bren D., EVP & Chief Financial Officer | JOther | +196.16 | $108.33 | $21.3K | No | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | WALLACE RICHARD P President and CEO | FTax | −45.9K | $278.39 | $12.8M | No | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | WALLACE RICHARD P, President and CEO | JOther | +196.16 | $108.33 | $21.3K | No | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | Wilkinson Mary Beth EVP, CLO and Secretary | FTax | −10.3K | $278.39 | $2.86M | Yes (planned) | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | Khan Ahmad A. President, Semi. Prod. & Cust. | FTax | −30.6K | $278.39 | $8.51M | No | Form 4 ↗ |
| 2026-07-02 | 2026-06-30 | Khan Ahmad A., President, Semi. Prod. & Cust. | JOther | +196.16 | $108.33 | $21.3K | No | Form 4 ↗ |
| 2026-06-11 | 2026-06-11 | WALLACE RICHARD P President and CEO | SSale | −4.51K | $2,213.37 | $9.99M | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-12 | WALLACE RICHARD P President and CEO | SSale | −4.51K | $1,794.00 | $8.09M | Yes (planned) | Form 4 ↗ |
| 2026-05-12 | 2026-05-11 | Kirloskar Virendra A SVP & Chief Accounting Officer | SSale | −297.00 | $1,879.02 | $558K | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-11 | Hanley Jeneanne Michelle Director | SSale | −550.00 | $1,874.71 | $1.03M | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | CALDERONI ROBERT Director | AAward | +11.27 | $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 KLAC’s full analysis or the market-wide insider trading feed. The tabs above jump to KLAC’s other SEC data.
Source: SEC Form 4 filings for KLAC, 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.