KLA CORP

Rule 10b5-1 Trading Plans Adopted by Officers and Directors During the Fourth Quarter

In the fourth quarter of fiscal 2025, the following officers adopted trading plans, or amendments to existing trading plans, to sell and/or gift shares of our common stock that have been or will be issued upon the vesting of RSUs, or purchased in our ESPP, that are intended to satisfy the affirmative defense conditions set forth in Rule 10b5-1(c) under the Securities Exchange Act. The material terms of the trading plans other than pricing conditions are set forth in the table below:

(1) Due to pricing conditions in the trading plans, the number of shares actually sold under the trading plans may be less than the maximum number of shares that can be sold. Shares sold under plans upon the vesting of performance-based RSUs where the performance conditions have not been met at the time of plan adoption are calculated at the maximum number of shares that may be issued, with fractional shares disregarded. Shares sold in the future that are issuable under our ESPP, where the number of shares to be purchased have not been determined, are calculated based on a 15% discount to the price at the opening of the purchase period.

(2) For RSUs that have not vested, the maximum number of shares to be sold does not take into account shares withheld for taxes.

(3) Mr. Higgins’ trading plan terminates when the last trade is placed under the plan. The last scheduled trade is on July 2, 2026; provided that if any scheduled trades are not placed because of trading conditions set forth in the plan, the trading plan will terminate on July 10, 2026.

(4) Mr. Khan’s trading plan terminates when the last trade is placed under the plan. The last scheduled trade is on November 10, 2025; provided that if any scheduled trades are not placed because of trading conditions set forth in the plan, the trading plan will terminate on December 26, 2025.

(5) Mr. Lorig’s trading plan was amended on May 2, 2025, and it terminates when the last trade is placed under the plan. The last scheduled trade is on August 12, 2025; provided that if any scheduled trades are not placed because of trading conditions set forth in the plan, the trading plan will terminate on February 24, 2026.