=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-08-05
10b5-1 Pre-arranged Plan: No
--- Issuer ---
Name: KLA CORP (KLAC)
CIK: 0000319201
--- Reporting Owner ---
Name: Khan Ahmad A.
CIK: 0001642452
Role: Officer (President, Semi. Prod. & Cust.)
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Common Stock
Date: 2026-08-05 | Code: A (Grant or award)
Shares: +24,410.853 | Price: $0.00
Shares Owned After: 178,507.7749 | Ownership: D (Direct)
Footnotes:
[F1] On August 5, 2026, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.
[F2] The number of shares of KLA common stock includes 93,674.613 shares issuable upon vesting of RSUs.
[Transaction #2]
Security: Common Stock
Date: 2026-08-06 | Code: A (Grant or award)
Shares: +87,420 | Price: $0.00
Shares Owned After: 265,927.7749 | Ownership: D (Direct)
Footnotes:
[F3] On August 3, 2023, in addition to the restricted stock units ("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 equal to 58,280.000 shares of KLA common stock. The maximum number of shares issuable under these PRSUs is 150% of the target shares if KLA's free cash flow relative to its peers was at the 75th percentile or greater for the three years in the period ended June 30, 2026. On August 6, 2026, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to these PRSUs were satisfied at the maximum level. Fifty percent (50%) of the PRSUs will vest today, August 6, 2026, and the remaining fifty percent (50%) of the PRSUs will vest on August 3, 2027, subject to the continued service of the Reporting Person.
[F4] The number of shares of KLA common stock includes 181,094.913 shares issuable upon vesting of RSUs.
[Transaction #3]
Security: Common Stock
Date: 2026-08-06 | Code: F (Payment of exercise/tax)
Shares: -21,671.418 | Price: $192.80
Total Value: $4,178,249.39
Shares Owned After: 244,256.3569 | Ownership: D (Direct)
Footnotes:
[F5] 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 5, 2026.
[F6] The number of shares of KLA common stock includes 137,384.613 shares issuable upon vesting of RSUs.
[Transaction #4]
Security: Common Stock
Date: 2026-08-06 | Code: A (Grant or award)
Shares: +62,475.7 | Price: $0.00
Shares Owned After: 306,732.0569 | Ownership: D (Direct)
Footnotes:
[F7] On August 4, 2022, the Reporting Person was granted PRSUs divided into three tranches. On August 6, 2026, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to the third tranche of these PRSUs were satisfied. On August 6, 2026, 62,475.700 shares vested.
[F8] The number of shares of KLA common stock includes 199,860.313 shares issuable upon vesting of RSUs.
[Transaction #5]
Security: Common Stock
Date: 2026-08-06 | Code: F (Payment of exercise/tax)
Shares: -30,975.453 | Price: $192.80
Total Value: $5,972,067.34
Shares Owned After: 275,756.6039 | Ownership: D (Direct)
Footnotes:
[F5] 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 5, 2026.
[F6] The number of shares of KLA common stock includes 137,384.613 shares issuable upon vesting of RSUs.
--- Footnotes (Complete Index) ---
F1: On August 5, 2026, the Reporting Person received a grant of RSUs. The RSUs vest 25% annually from the date of grant.
F2: The number of shares of KLA common stock includes 93,674.613 shares issuable upon vesting of RSUs.
F3: On August 3, 2023, in addition to the restricted stock units ("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 equal to 58,280.000 shares of KLA common stock. The maximum number of shares issuable under these PRSUs is 150% of the target shares if KLA's free cash flow relative to its peers was at the 75th percentile or greater for the three years in the period ended June 30, 2026. On August 6, 2026, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to these PRSUs were satisfied at the maximum level. Fifty percent (50%) of the PRSUs will vest today, August 6, 2026, and the remaining fifty percent (50%) of the PRSUs will vest on August 3, 2027, subject to the continued service of the Reporting Person.
F4: The number of shares of KLA common stock includes 181,094.913 shares issuable upon vesting of RSUs.
F5: 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 5, 2026.
F6: The number of shares of KLA common stock includes 137,384.613 shares issuable upon vesting of RSUs.
F7: On August 4, 2022, the Reporting Person was granted PRSUs divided into three tranches. On August 6, 2026, KLA's Board of Directors and Compensation and Talent Committee determined that the performance conditions applicable to the third tranche of these PRSUs were satisfied. On August 6, 2026, 62,475.700 shares vested.
F8: The number of shares of KLA common stock includes 199,860.313 shares issuable upon vesting of RSUs.
--- Signature ---
/s/ /s/ Jeffrey S. Cannon, as attorney-in-fact for Ahmad A. Khan (2026-08-07)
