X0306 4 2022-07-14 0 0000319201 KLA CORP KLAC 0001802832 Donzella Oreste ONE TECHNOLOGY DRIVE MILPITAS CA 95035 0 1 0 0 Executive Vice President Common Stock 2022-06-30 5 J 0 E 57 271.218 A 35538 D Common Stock 2022-07-14 4 S 0 96 320.00 D 35442 D Purchased under the registrant's employee stock purchase plan. Represents 85% of the closing price of the registrant's stock on the employee stock purchase plan on June 30, 2022. Includes RSUs to acquire 27,014 shares of KLA common stock. This sale was effected pursuant to the terms of a Rule 10b5-1 trading plan adopted by the Reporting Person on February 1, 2022. /s/ Jeffrey Cannon, as attorney-in-fact for Oreste Donzella 2022-07-18