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: 2026-02-27

Reporting Person: ARCHER TIMOTHY (President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-27	Common Stock	A	51053	—	Acquired	1247912	Direct
2026-02-27	Common Stock	F	134624	$233.89	Disposed	1113288	Direct
2026-02-27	Common Stock	F	9975	$233.89	Disposed	1103313	Direct
2026-02-27	Common Stock	F	8111	$233.89	Disposed	1095202	Direct
2026-02-27	Common Stock	F	19584	$233.89	Disposed	1075618	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-27	Market-based Performance Restricted Stock Unit	$0	A	76580	Acquired		Common Stock (76580)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	48025.775	Indirect
Common Stock	5670.061	Indirect

Footnotes

F1: The restricted stock units will vest in three equal installments on 02/27/2027, 02/27/2028, and 02/27/2029.

F2: The amount reported includes shares subject to unvested restricted stock units.

F3: Represents shares that were automatically withheld upon vesting of restricted stock units to satisfy tax withholding obligations.

F4: The Market-based performance restricted stock units will vest between 0% and 150% on 2/27/2029. The performance of this award is based on the percentile ranking of Lam Research's Total Shareholder Return relative to the Total Shareholder Return of the companies in the PHLX Semiconductor Total Return Index during the performance period of 02/2/2026 through 02/01/2029.