LAM RESEARCH CORP — Director's Dealing 2026

Mar 3, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: LAM RESEARCH CORP (LRCX)
CIK: 0000707549
Period of Report: 2026-03-02

Reporting Person: Bettinger Douglas R (Chief Financial Officer & EVP)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-03-02	Common Stock	M	16620	$59.881	Acquired	1044651	Direct
2026-03-02	Common Stock	M	37980	$54.057	Acquired	1082631	Direct
2026-03-02	Common Stock	M	11710	$30.033	Acquired	1094341	Direct
2026-03-02	Common Stock	S	40329	$230.22	Disposed	1054012	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-03-02	Employee Stock Option (Right to Buy)	$59.881	M	16620	Disposed	2028-03-01	Common Stock (16620)	Direct
2026-03-02	Employee Stock Option (Right to Buy)	$54.057	M	37980	Disposed	2029-03-01	Common Stock (37980)	Direct
2026-03-02	Employee Stock Option (Right to Buy)	$30.033	M	11710	Disposed	2027-03-02	Common Stock (11710)	Direct

Footnotes

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

F2: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $230.07 .00 to $230.39, inclusive

F3: The stock options will become exercisable in three equal installments on 03/01/2022, 03/01/2023 and 03/01/2024.

F4: The stock options will become exercisable in three equal installments on 03/01/2023, 03/01/2024 and 03/01/2024.

F5: The stock options will become exercisable in three equal installments on 03/02/2021, 03/02/2022, and 03/02/2023.