KLAC · Insider Trading
KLA Corporation Common Stock
Every open-market purchase and sale reported by KLAC officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
14
code S
Reporting Insiders
18
current holders
KLAC — Recent Form 4 Transactions (latest 2026-09-16)
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-16 | Richard P Wallace | President and CEO | Sell | −72,019 | −$12.38M |
| 2026-08-14 | Brian Lorig | EVP, KLA Global Services | Sell | −59,586 | −$12.40M |
| 2026-08-13 | Bren D. Higgins | EVP & Chief Financial Officer | Sell | −31,500 | −$6.61M |
| 2026-08-12 | Richard P Wallace | President and CEO | Sell | −87,568 | −$17.42M |
| 2026-08-12 | Ahmad A. Khan | President, Semi. Prod. & Cust. | Sell | −33,180 | −$6.60M |
| 2026-08-11 | Mary Beth Wilkinson | EVP, CLO and Secretary | Sell | −1,661 | −$339.77K |
| 2026-08-11 | Virendra A Kirloskar | SVP & Chief Accounting Officer | Sell | −529 | −$108.21K |
| 2026-08-10 | Bren D. Higgins | EVP & Chief Financial Officer | F | −4,531 | −$875.60K |
| 2026-08-10 | Richard P Wallace | President and CEO | F | −12,761 | −$2.47M |
| 2026-08-10 | Virendra A Kirloskar | SVP & Chief Accounting Officer | MIXED | −2,925 | −$575.74K |
| 2026-08-10 | Mary Beth Wilkinson | EVP, CLO and Secretary | MIXED | −23,039 | −$4.55M |
| 2026-08-10 | Ahmad A. Khan | President, Semi. Prod. & Cust. | F | −4,531 | −$875.60K |
| 2026-08-10 | Brian Lorig | EVP, KLA Global Services | F | −2,875 | −$555.63K |
| 2026-08-07 | Ahmad A. Khan | President, Semi. Prod. & Cust. | MIXED | +121,659 | −$10.15M |
| 2026-08-07 | Bren D. Higgins | EVP & Chief Financial Officer | MIXED | +121,659 | −$10.15M |
| 2026-08-07 | Virendra A Kirloskar | SVP & Chief Accounting Officer | MIXED | +8,724 | −$455.97K |
| 2026-08-07 | Richard P Wallace | President and CEO | MIXED | +353,488 | −$25.83M |
| 2026-08-07 | Brian Lorig | EVP, KLA Global Services | MIXED | +58,440 | −$4.29M |
| 2026-08-07 | Mary Beth Wilkinson | EVP, CLO and Secretary | MIXED | +39,622 | −$3.06M |
| 2026-08-07 | Virendra A Kirloskar | SVP & Chief Accounting Officer | MIXED | +8,724 | −$455.97K |
| 2026-08-07 | Ahmad A. Khan | President, Semi. Prod. & Cust. | MIXED | +121,659 | −$10.15M |
| 2026-08-07 | Bren D. Higgins | EVP & Chief Financial Officer | MIXED | +121,659 | −$10.15M |
| 2026-08-07 | Brian Lorig | EVP, KLA Global Services | MIXED | +58,440 | −$4.29M |
| 2026-08-07 | Richard P Wallace | President and CEO | MIXED | +353,488 | −$25.83M |
| 2026-08-07 | Mary Beth Wilkinson | EVP, CLO and Secretary | MIXED | +39,622 | −$3.06M |
| 2026-08-05 | Mary Beth Wilkinson | EVP, CLO and Secretary | Sell | −13,802 | −$2.70M |
| 2026-08-05 | Virendra A Kirloskar | SVP & Chief Accounting Officer | Sell | −4,504 | −$880.53K |
| 2026-08-04 | Brian Lorig | EVP, KLA Global Services | F | −14,774 | −$2.70M |
| 2026-08-04 | Mary Beth Wilkinson | EVP, CLO and Secretary | MIXED | −14,331 | −$2.66M |
| 2026-08-04 | Richard P Wallace | President and CEO | F | −109,737 | −$20.05M |
| 2026-08-04 | Virendra A Kirloskar | SVP & Chief Accounting Officer | MIXED | −5,994 | −$1.11M |
| 2026-08-04 | Ahmad A. Khan | President, Semi. Prod. & Cust. | F | −31,037 | −$5.67M |
| 2026-08-04 | Bren D. Higgins | EVP & Chief Financial Officer | F | −29,557 | −$5.40M |
| 2026-08-03 | Bren D. Higgins | EVP & Chief Financial Officer | F | −11,727 | −$2.14M |
| 2026-08-03 | Brian Lorig | EVP, KLA Global Services | F | −6,286 | −$1.15M |
| 2026-08-03 | Richard P Wallace | President and CEO | F | −32,653 | −$5.97M |
| 2026-08-03 | Virendra A Kirloskar | SVP & Chief Accounting Officer | F | −1,103 | −$201.77K |
| 2026-08-03 | Ahmad A. Khan | President, Semi. Prod. & Cust. | F | −11,727 | −$2.14M |
| 2026-08-03 | Mary Beth Wilkinson | EVP, CLO and Secretary | F | −3,123 | −$571.10K |
| 2026-07-06 | Virendra A Kirloskar | SVP & Chief Accounting Officer | MIXED | +0 | −$30.83K |
| 2026-07-06 | Bren D. Higgins | EVP & Chief Financial Officer | Sell | −27,701 | −$7.36M |
| 2026-07-02 | Ahmad A. Khan | President, Semi. Prod. & Cust. | MIXED | −30,370 | −$8.49M |
| 2026-07-02 | Richard P Wallace | President and CEO | MIXED | −45,654 | −$12.74M |
| 2026-07-02 | Bren D. Higgins | EVP & Chief Financial Officer | MIXED | −30,370 | −$8.49M |
| 2026-07-02 | Brian Lorig | EVP, KLA Global Services | MIXED | −12,026 | −$3.38M |
| 2026-07-02 | Mary Beth Wilkinson | EVP, CLO and Secretary | MIXED | −24,651 | −$6.96M |
| 2026-06-11 | Richard P Wallace | President and CEO | Sell | −4,512 | −$9.99M |
| 2026-05-12 | Jeneanne Michelle Hanley | Director | Sell | −550 | −$1.03M |
| 2026-05-12 | Virendra A Kirloskar | SVP & Chief Accounting Officer | Sell | −297 | −$558.07K |
| 2026-05-12 | Richard P Wallace | President and CEO | Sell | −4,512 | −$8.09M |
KLAC — Current Insider Holders
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Richard P Wallace | President and CEO | 706,924 | $105.48M |
| Bren D. Higgins | EVP & Chief Financial Officer | 307,815 | $45.93M |
| Ahmad A. Khan | President, Semi. Prod. & Cust. | 238,044 | $35.52M |
| Robert Calderoni | Director | 152,305 | $22.73M |
| Gary B Moore | Director | 150,280 | $22.42M |
| Emiko Higashi | Director | 147,660 | $22.03M |
| Robert A. Rango | Director | 116,930 | $17.45M |
| Kevin Kennedy | Director | 80,357 | $11.99M |
| Brian Lorig | EVP, KLA Global Services | 77,681 | $11.59M |
| Victor Peng | Director | 58,157 | $8.68M |
| Mary Beth Wilkinson | EVP, CLO and Secretary | 37,032 | $5.53M |
| Jeneanne Michelle Hanley | Director | 35,507 | $5.30M |
| Virendra A Kirloskar | SVP & Chief Accounting Officer | 13,242 | $1.98M |
| Michael R. McMullen | Director | 11,787 | $1.76M |
| Jamie Samath | Director | 3,777 | $563.57K |
| Susan J.S. Taylor | Director | 3,697 | $551.63K |
| Tracy A Embree | Director | 2,037 | $303.94K |
| Jason Conley | Director | 2,037 | $303.94K |
KLAC Insider Trading FAQ
Who are the insiders at KLAC?
18 officers, directors and 10%+ beneficial owners currently report holdings in KLAC via SEC Form 4.
Are KLAC insiders buying or selling?
Across the 50 most recent Form 4 filings for KLAC, 0 were open-market purchases (code P) and 14 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is KLAC insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent KLAC filing is dated 2026-09-16.
How to read Form 4 activity
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the KLAC quote page; the site-wide leaderboard is on the insider transactions hub.
More on KLAC
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.