LAM RESEARCH CORP

Rule 10b5-1 and Non-Rule 10b5-1 Trading Arrangements

During the Company’s fiscal quarter ended June 30, 2024, except for the following arrangements, none of the Company’s directors or officers adopted, modified, orterminated a trading arrangement for the purchase or sale of the Company’s common stock that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) (a “Rule 10b5-1 Trading Arrangement”) or a non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K):

•On May 29, 2024, Seshasayee (Sesha) Varadarajan, Senior Vice President, Global Products Group of the Company, adopted a Rule 10b5-1 Trading Arrangement. Mr. Varadarajan’s Rule 10b5-1 Trading Arrangement provides for: (i) the potential exercise of 3,576 stock options expiring on March 1, 2025, and the associated sale of up to 3,576 shares of the Company’s common stock resulting from such exercise, (ii) the potential exercise of 7,432 stock options expiring on March 1, 2026, and the associated sale of up to 7,432 shares of the Company’s common stock resulting from such exercise, and (iii) a gift of shares totaling approximately $150,000 on the date of execution. Mr. Varadarajan’s Rule 10b5-1 Trading Arrangement has a termination date of May 30, 2025.

Lam Research Corporation 2024 10-K 72

The Rule 10b5-1 Trading Arrangement contains pricing conditions that preclude or limit the sale of shares below predetermined minimum prices. The Rule 10b5-1 Trading Arrangement will terminate on the earlier of: (a) its respective termination date indicated above; (b) execution of all trades or expiration of all the orders relating to such trades under the Rule 10b5-1 Trading Arrangement; or (c) such date as the Rule 10b5-1 Trading Arrangement is otherwise terminated according to its terms.