| 2026-02-05 | CALDERONI ROBERT | Award | 11 | — |
| 2025-12-16 | Higgins Bren D.EVP & Chief Financial Officer | Sale | 2,254 | -$2.8M |
| 2025-11-12 | Khan Ahmad A.President, Semi. Prod. & Cust. | Gift | 85 | — |
| 2025-11-11 | WALLACE RICHARD PPresident and CEO | Sale | 10,803 | -$13.0M |
| 2025-11-11 | WALLACE RICHARD PPresident and CEO | Gift | 804 | — |
| 2025-11-05 | Samath Jamie | Award | 204 | — |
| 2025-11-05 | Hanley Jeneanne Michelle | Award | 204 | — |
| 2025-11-05 | KENNEDY KEVIN | Award | 204 | — |
| 2025-11-05 | PENG VICTOR | Award | 204 | — |
| 2025-11-05 | Taylor Susan J.S. | Award | 204 | — |
| 2025-11-05 | McMullen Michael R. | Award | 204 | — |
| 2025-11-05 | CALDERONI ROBERT | Award | 257 | — |
| 2025-11-05 | Conley Jason | Award | 204 | — |
| 2025-11-05 | Embree Tracy A | Award | 204 | — |
| 2025-09-05 | Khan Ahmad A.President, Semi. Prod. & Cust. | Sale | 4,564 | -$4.1M |
| 2025-08-29 | Khan Ahmad A.President, Semi. Prod. & Cust. | Sale | 13,716 | -$12.1M |
| 2025-08-20 | Higgins Bren D.EVP & Chief Financial Officer | Sale | 2,301 | -$2.0M |
| 2025-08-12 | Lorig BrianEVP, KLA Global Services | Sale | 8,049 | -$7.4M |
| 2025-08-12 | WALLACE RICHARD PPresident and CEO | Sale | 10,801 | -$9.9M |
| 2025-08-12 | WALLACE RICHARD PPresident and CEO | Gift | 804 | — |
| 2025-08-08 | Wilkinson Mary BethEVP, CLO and Secretary | Sale | 1,022 | -$933.1K |
| 2025-08-08 | Kirloskar Virendra ASVP & Chief Accounting Officer | Sale | 338 | -$308.6K |
| 2025-08-07 | Wilkinson Mary BethEVP, CLO and Secretary | Award | 3,578 | — |
| 2025-08-07 | Wilkinson Mary BethEVP, CLO and Secretary | Tax withhold | 767 | -$681.1K |
| 2025-08-07 | Wilkinson Mary BethEVP, CLO and Secretary | Award | 2,465 | — |
| 2025-08-07 | Wilkinson Mary BethEVP, CLO and Secretary | Award | 1,145 | — |
| 2025-08-07 | WALLACE RICHARD PPresident and CEO | Award | 36,219 | — |
| 2025-08-07 | WALLACE RICHARD PPresident and CEO | Tax withhold | 8,979 | -$8.0M |
| 2025-08-07 | WALLACE RICHARD PPresident and CEO | Award | 9,248 | — |
| 2025-08-07 | WALLACE RICHARD PPresident and CEO | Award | 10,295 | — |