LAM RESEARCH CORP (LRCX) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-05 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: LAM RESEARCH CORP (LRCX) CIK: 0000707549 --- Reporting Owner --- Name: Harter Ava CIK: 0001642415 Role: Officer (Chief Legal Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-05 | Code: F (Payment of exercise/tax) Shares: -5,790 | Price: $307.42 Total Value: $1,779,961.80 Shares Owned After: 47,462.455 | Ownership: D (Direct) Footnotes: [F1] Represents shares that were automatically withheld upon vesting of restricted stock units to satisfy tax withholding obligations. [F2] The amount reported includes shares subject to unvested restricted stock units. --- Footnotes (Complete Index) --- F1: Represents shares that were automatically withheld upon vesting of restricted stock units to satisfy tax withholding obligations. F2: The amount reported includes shares subject to unvested restricted stock units. --- Signature --- /s/ Marta Woods by Power of Attorney (2026-08-06)