X0508 4 2023-08-04 0 0000319201 KLA CORP KLAC 0001642452 Khan Ahmad A. ONE TECHNOLOGY DRIVE MILPITAS CA 95035 0 1 0 0 President, Semi Proc. Control 0 Common Stock 2023-08-04 4 F 0 776 496.47 D 66841.392 D Common Stock 2023-08-05 4 F 0 834 496.47 D 66007.392 D Common Stock 2023-08-06 4 F 0 1171 496.47 D 64836.392 D Common Stock 2023-08-06 4 F 0 3512 496.47 D 61324.392 D On August 4, 2022, the Reporting Person was granted restricted stock units ("RSUs") for 6,260 shares of KLA common stock. On August 4, 2023, 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 4, 2023. The number of shares of KLA common stock includes 49,651 shares issuable upon vesting of RSUs. On August 5, 2021, the Reporting Person was granted RSUs for 6,727 shares of KLA common stock. On August 5, 2023, 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 4, 2023. The number of shares of KLA common stock includes 47,969 shares issuable upon vesting of RSUs. On August 6, 2020, the Reporting Person was granted RSUs for 9,444 shares of KLA common stock. On August 6, 2023, 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 4, 2023. The number of shares of KLA common stock includes 45,608 shares issuable upon vesting of RSUs. The Reporting Person vested 50% of the performance-based restricted stock units ("RSUs") granted on August 6, 2020. 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 4, 2023. The number of shares of KLA common stock includes 38,525 shares issuable upon vesting of RSUs. /s/ Jeffrey S. Cannon, as attorney-in-fact for Ahmad A. Khan 2023-08-08