LAM RESEARCH CORP — Director's Dealing 2025

Oct 28, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: LAM RESEARCH CORP (LRCX)
CIK: 0000707549
Period of Report: 2025-10-27

Reporting Person: Harter Ava (Chief Legal Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-10-27	Common Stock	S	3000	$157.48	Disposed	56786.455	Direct
2025-10-27	Common Stock	M	6010	$77.039	Acquired	62796.455	Direct
2025-10-27	Common Stock	S	6010	$157.46	Disposed	56786.455	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-10-27	Employee Stock Option (Right to Buy)	$77.039	M	6010	Disposed	2031-08-05	Common Stock (6010)	Direct

Footnotes

F1: The amount reported includes shares subject to unvested restricted stock units.

F2: The stock options will become exercisable in three equal installments on 03/01/2025, 03/01/2026, and 03/01/2027.