The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 2, 2026 | Higgins Bren D. | EVP & Chief Financial Officer | Sell(S) | 28K | $265.69 | $7.4M |
| Jul 2, 2026 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Sell(S) | 196 | $265.69 | $52K |
| Jul 1, 2026 | Wilkinson Mary Beth | EVP, CLO and Secretary | Sell(S) | 14K | $285.30 | $4.1M |
| Jun 30, 2026 | Higgins Bren D. | EVP & Chief Financial Officer | Other(J) | 196 | $108.33 | $21K |
| Jun 30, 2026 | Higgins Bren D. | EVP & Chief Financial Officer | Tax withholding(F) | 31K | $278.39 | $8.5M |
| Jun 30, 2026 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Other(J) | 196 | $108.33 | $21K |
| Jun 30, 2026 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Tax withholding(F) | 31K | $278.39 | $8.5M |
| Jun 30, 2026 | Wilkinson Mary Beth | EVP, CLO and Secretary | Tax withholding(F) | 10K | $278.39 | $2.9M |
| Jun 30, 2026 | Wallace Richard P | President and CEO | Other(J) | 196 | $108.33 | $21K |
| Jun 30, 2026 | Wallace Richard P | President and CEO | Tax withholding(F) | 46K | $278.39 | $12.8M |
| Jun 30, 2026 | Lorig Brian | EVP, KLA Global Services | Other(J) | 196 | $108.33 | $21K |
| Jun 30, 2026 | Lorig Brian | EVP, KLA Global Services | Tax withholding(F) | 12K | $278.39 | $3.4M |
| Jun 30, 2026 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Other(J) | 196 | $108.33 | $21K |
| Jun 11, 2026 | Wallace Richard P | President and CEO | Sell(S) | 5K | $2,213.37 | $10.0M |
| May 12, 2026 | Wallace Richard P | President and CEO | Sell(S) | 5K | $1,794.00 | $8.1M |
| May 11, 2026 | Hanley Jeneanne Michelle | Director | Sell(S) | 550 | $1,874.71 | $1.0M |
| May 11, 2026 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Sell(S) | 297 | $1,879.02 | $558K |
| Feb 5, 2026 | Calderoni Robert | Director | Grant(A) | 11 | — | $0 |
| Dec 16, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Sell(S) | 2K | $1,237.01 | $2.8M |
| Nov 12, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Gift(G) | 85 | — | $0 |
| Nov 11, 2025 | Wallace Richard P | President and CEO | Sell(S) | 11K | $1,203.10 | $13.0M |
| Nov 11, 2025 | Wallace Richard P | President and CEO | Gift(G) | 804 | — | $0 |
| Nov 5, 2025 | Samath Jamie | Director | Grant(A) | 204 | — | $0 |
| Nov 5, 2025 | Hanley Jeneanne Michelle | Director | Grant(A) | 204 | — | $0 |
| Nov 5, 2025 | Kennedy Kevin | Director | Grant(A) | 204 | — | $0 |
| Nov 5, 2025 | Peng Victor | Director | Grant(A) | 204 | — | $0 |
| Nov 5, 2025 | Taylor Susan J.S. | Director | Grant(A) | 204 | — | $0 |
| Nov 5, 2025 | McMullen Michael R. | Director | Grant(A) | 204 | — | $0 |
| Nov 5, 2025 | Calderoni Robert | Director | Grant(A) | 257 | — | $0 |
| Nov 5, 2025 | Conley Jason | Director | Grant(A) | 204 | — | $0 |
| Nov 5, 2025 | Embree Tracy A | Director | Grant(A) | 204 | — | $0 |
| Sep 5, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Sell(S) | 5K | $900.00 | $4.1M |
| Aug 29, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Sell(S) | 14K | $881.50 | $12.1M |
| Aug 20, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Sell(S) | 2K | $878.53 | $2.0M |
| Aug 12, 2025 | Lorig Brian | EVP, KLA Global Services | Sell(S) | 8K | $913.68 | $7.4M |
| Aug 12, 2025 | Wallace Richard P | President and CEO | Gift(G) | 804 | — | $0 |
| Aug 12, 2025 | Wallace Richard P | President and CEO | Sell(S) | 11K | $913.68 | $9.9M |
| Aug 8, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Sell(S) | 338 | $913.00 | $309K |
| Aug 8, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Sell(S) | 1K | $913.00 | $933K |
| Aug 7, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Grant(A) | 9K | — | $0 |
| Aug 7, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Grant(A) | 6K | — | $0 |
| Aug 7, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Grant(A) | 4K | — | $0 |
| Aug 7, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Tax withholding(F) | 2K | $888.28 | $2.0M |
| Aug 7, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Grant(A) | 9K | — | $0 |
| Aug 7, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Tax withholding(F) | 2K | $888.28 | $2.1M |
| Aug 7, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Grant(A) | 4K | — | $0 |
| Aug 7, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Grant(A) | 6K | — | $0 |
| Aug 7, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Grant(A) | 417 | — | $0 |
| Aug 7, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Tax withholding(F) | 332 | $888.28 | $295K |
| Aug 7, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Grant(A) | 1K | — | $0 |
| Aug 7, 2025 | Lorig Brian | EVP, KLA Global Services | Tax withholding(F) | 1K | $888.28 | $985K |
| Aug 7, 2025 | Lorig Brian | EVP, KLA Global Services | Grant(A) | 4K | — | $0 |
| Aug 7, 2025 | Lorig Brian | EVP, KLA Global Services | Grant(A) | 2K | — | $0 |
| Aug 7, 2025 | Lorig Brian | EVP, KLA Global Services | Grant(A) | 2K | — | $0 |
| Aug 7, 2025 | Wallace Richard P | President and CEO | Tax withholding(F) | 9K | $888.28 | $8.0M |
| Aug 7, 2025 | Wallace Richard P | President and CEO | Grant(A) | 36K | — | $0 |
| Aug 7, 2025 | Wallace Richard P | President and CEO | Grant(A) | 9K | — | $0 |
| Aug 7, 2025 | Wallace Richard P | President and CEO | Grant(A) | 10K | — | $0 |
| Aug 7, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Grant(A) | 4K | — | $0 |
| Aug 7, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Grant(A) | 1K | — | $0 |
| Aug 7, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Grant(A) | 2K | — | $0 |
| Aug 7, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Tax withholding(F) | 767 | $888.28 | $681K |
| Aug 5, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Tax withholding(F) | 119 | $915.62 | $109K |
| Aug 5, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Tax withholding(F) | 329 | $915.62 | $302K |
| Aug 5, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Sell(S) | 511 | $917.00 | $469K |
| Aug 5, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Sell(S) | 2K | $917.00 | $1.8M |
| Aug 5, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Tax withholding(F) | 343 | $915.62 | $314K |
| Aug 5, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Tax withholding(F) | 274 | $915.62 | $251K |
| Aug 5, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Tax withholding(F) | 823 | $915.62 | $754K |
| Aug 5, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Tax withholding(F) | 3K | $915.62 | $2.3M |
| Aug 5, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Tax withholding(F) | 833 | $915.62 | $763K |
| Aug 5, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Tax withholding(F) | 2K | $915.62 | $2.1M |
| Aug 5, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Tax withholding(F) | 754 | $915.62 | $690K |
| Aug 5, 2025 | Lorig Brian | EVP, KLA Global Services | Tax withholding(F) | 317 | $915.62 | $291K |
| Aug 5, 2025 | Lorig Brian | EVP, KLA Global Services | Tax withholding(F) | 953 | $915.62 | $872K |
| Aug 5, 2025 | Wallace Richard P | President and CEO | Tax withholding(F) | 10K | $915.62 | $8.8M |
| Aug 5, 2025 | Wallace Richard P | President and CEO | Tax withholding(F) | 2K | $915.62 | $2.0M |
| Aug 4, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Tax withholding(F) | 739 | $886.64 | $655K |
| Aug 4, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Tax withholding(F) | 776 | $886.64 | $688K |
| Aug 4, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Tax withholding(F) | 77 | $886.64 | $68K |
| Aug 4, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Sell(S) | 320 | $896.75 | $287K |
| Aug 4, 2025 | Lorig Brian | EVP, KLA Global Services | Tax withholding(F) | 369 | $886.64 | $327K |
| Aug 4, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Tax withholding(F) | 255 | $886.64 | $226K |
| Aug 4, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Sell(S) | 763 | $896.75 | $684K |
| Aug 4, 2025 | Wallace Richard P | President and CEO | Tax withholding(F) | 2K | $886.64 | $1.8M |
| Aug 3, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Tax withholding(F) | 722 | $886.64 | $640K |
| Aug 3, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Tax withholding(F) | 722 | $886.64 | $640K |
| Aug 3, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Tax withholding(F) | 55 | $886.64 | $49K |
| Aug 3, 2025 | Lorig Brian | EVP, KLA Global Services | Tax withholding(F) | 328 | $886.64 | $291K |
| Aug 3, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Tax withholding(F) | 182 | $886.64 | $161K |
| Aug 3, 2025 | Wallace Richard P | President and CEO | Tax withholding(F) | 2K | $886.64 | $1.7M |
| Aug 1, 2025 | Higgins Bren D. | EVP & Chief Financial Officer | Tax withholding(F) | 451 | $879.03 | $396K |
| Aug 1, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Tax withholding(F) | 38 | $879.03 | $33K |
| Aug 1, 2025 | Wallace Richard P | President and CEO | Tax withholding(F) | 1K | $879.03 | $1.2M |
| Aug 1, 2025 | Wilkinson Mary Beth | EVP, CLO and Secretary | Tax withholding(F) | 136 | $879.03 | $120K |
| Aug 1, 2025 | Khan Ahmad A. | President, Semi. Prod. & Cust. | Tax withholding(F) | 451 | $879.03 | $396K |
| Aug 1, 2025 | Lorig Brian | EVP, KLA Global Services | Tax withholding(F) | 300 | $879.03 | $264K |
| Jul 2, 2025 | Kirloskar Virendra A | SVP & Chief Accounting Officer | Sell(S) | 39 | $891.50 | $35K |
| Jun 30, 2025 | Lorig Brian | EVP, KLA Global Services | Other(J) | 39 | $541.13 | $21K |
| Jun 30, 2025 | Lorig Brian | EVP, KLA Global Services | Tax withholding(F) | 1K | $889.87 | $936K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2021-04-26 → 2026-07-11. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).