SEC Form 4 · accession 0001193125-26-333148
KLA CORP · KLAC
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Mary Beth Wilkinson
Officer — EVP, CLO and Secretary
Period of report
Aug 4, 2026
Accepted (ET)
Aug 4, 2026 · 5:27 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0000319201
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1,F2 | Aug 4, 2026 | F | 2,509 | $182.75 | D | 47,734 | D | |
| Common StockF3,F4 | Aug 4, 2026 | F | 7,527 | $182.75 | D | 40,207 | D | |
| Common StockF5,F4 | Aug 4, 2026 | S | 4,295 | $191.59 | D | 35,912 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") of shares of KLA common stock. On August 4, 2026, twenty-five percent (25%) of the RSUs vested. Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 3, 2026.
- F2The number of shares of KLA common stock includes 39,917.820 shares issuable upon vesting of RSUs.
- F3On August 4, 2022, in addition to the RSUs granted that were subject to only service-based vesting conditions, the Reporting Person was also granted RSUs with both performance-based and service-based vesting conditions ("PRSUs") for a target number of shares of KLA common stock. On August 7, 2025, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to these PRSUs were satisfied. The remaining fifty percent (50%) of the PRSUs vested on August 4, 2026. Pursuant to the terms of the grant, shares of KLA common stock were automatically withheld at vesting to cover required tax withholding. The fair market value of KLA common stock used for purposes of calculating the number of shares to be withheld was the closing price of KLA common stock as reported on August 3, 2026.
- F4The number of shares of KLA common stock includes 22,037.820 shares issuable upon vesting of restricted stock units RSUs.
- F5This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 2, 2026.