=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-08-04
10b5-1 Pre-arranged Plan: Yes
--- Issuer ---
Name: KLA CORP (KLAC)
CIK: 0000319201
--- Reporting Owner ---
Name: Wilkinson Mary Beth
CIK: 0001691769
Role: Officer (EVP, CLO and Secretary)
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Common Stock
Date: 2026-08-04 | Code: F (Payment of exercise/tax)
Shares: -2,509.161 | Price: $182.75
Total Value: $458,549.17
Shares Owned After: 47,734.313 | Ownership: D (Direct)
Footnotes:
[F1] On 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.
[F2] The number of shares of KLA common stock includes 39,917.820 shares issuable upon vesting of RSUs.
[Transaction #2]
Security: Common Stock
Date: 2026-08-04 | Code: F (Payment of exercise/tax)
Shares: -7,527.481 | Price: $182.75
Total Value: $1,375,647.15
Shares Owned After: 40,206.832 | Ownership: D (Direct)
Footnotes:
[F3] On 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.
[F4] The number of shares of KLA common stock includes 22,037.820 shares issuable upon vesting of restricted stock units RSUs.
[Transaction #3]
Security: Common Stock
Date: 2026-08-04 | Code: S (Open market sale)
Shares: -4,295 | Price: $191.59
Total Value: $822,879.05
Shares Owned After: 35,911.832 | Ownership: D (Direct)
Footnotes:
[F5] This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 2, 2026.
[F4] The number of shares of KLA common stock includes 22,037.820 shares issuable upon vesting of restricted stock units RSUs.
--- Footnotes (Complete Index) ---
F1: On 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.
F2: The number of shares of KLA common stock includes 39,917.820 shares issuable upon vesting of RSUs.
F3: On 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.
F4: The number of shares of KLA common stock includes 22,037.820 shares issuable upon vesting of restricted stock units RSUs.
F5: This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 2, 2026.
--- Signature ---
/s/ /s/ Jeffrey S. Cannon, as attorney-in-fact for Mary Beth Wilkinson (2026-08-04)
