Lam Research SEC Filings
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At close: Oct 9, 4:00 PM ET · Delayed 15 min
Lam Research filing overview
This page lists 60 recent SEC filings by Lam Research (LRCX), including 40 4, 10 8-K, 3 10-Q, 2 DEF 14A. The latest annual report (10-K) was filed on Aug 7, 2026 for the period ending Jun 28, 2026. The most recent quarterly report (10-Q) was filed on Apr 23, 2026.
The latest current report (8-K), used to disclose material events such as earnings releases and executive changes, was filed on Aug 27, 2026. Form 10-K is the audited annual report, 10-Q the quarterly report, 8-K covers material events, and Form 4 reports insider transactions. All documents link directly to SEC EDGAR.
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LRCX SEC filings
| Filed | Form | Description | Document |
|---|---|---|---|
| Sep 24, 2026 | DEF 14A | Definitive proxy statement | View on EDGAR |
| Sep 10, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Sep 10, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Sep 3, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Sep 1, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Aug 27, 2026 | 8-K | Departure or Appointment of Directors or Officers; Compensatory Arrangements | View on EDGAR |
| Aug 7, 2026 | 10-K | Annual report | View on EDGAR |
| Aug 7, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Aug 6, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Jul 29, 2026 | 8-K | Results of Operations and Financial Condition | View on EDGAR |
| Jul 14, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Jul 6, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Jun 15, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Jun 15, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Jun 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| May 4, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 30, 2026 | SCHEDULE 13G | Beneficial ownership report (passive) | View on EDGAR |
| Apr 28, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 23, 2026 | 10-Q | Quarterly report | View on EDGAR |
| Apr 22, 2026 | 8-K | Results of Operations and Financial Condition | View on EDGAR |
| Mar 27, 2026 | SCHEDULE 13G/A | Beneficial ownership report (passive) (amendment) | View on EDGAR |
| Mar 11, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 5, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 5, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 3, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 3, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 25, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 9, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 9, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 5, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 5, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 5, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 5, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 5, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 5, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 5, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Feb 4, 2026 | 8-K/A | Amended: Departure or Appointment of Directors or Officers; Compensatory Arrangements | View on EDGAR |
| Feb 3, 2026 | 8-K | Departure or Appointment of Directors or Officers; Compensatory Arrangements | View on EDGAR |
| Jan 29, 2026 | 10-Q | Quarterly report | View on EDGAR |
| Jan 28, 2026 | 8-K | Results of Operations and Financial Condition | View on EDGAR |
| Dec 18, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Nov 17, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Nov 10, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Nov 10, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Nov 6, 2025 | 8-K | Material Modification to Rights of Security Holders; Departure or Appointment of Directors or Officers; Compensatory Arrangements; Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year; Submission of Matters to a Vote of Security Holders | View on EDGAR |
| Oct 24, 2025 | 10-Q | Quarterly report | View on EDGAR |
| Oct 22, 2025 | 8-K | Results of Operations and Financial Condition | View on EDGAR |
| Sep 24, 2025 | DEF 14A | Definitive proxy statement | View on EDGAR |
| Sep 11, 2025 | 8-K | Changes in Registrant's Certifying Accountant | View on EDGAR |
| Aug 11, 2025 | 10-K | Annual report | View on EDGAR |
| Jul 30, 2025 | 8-K | Results of Operations and Financial Condition | View on EDGAR |
| May 21, 2025 | 8-K | Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year | View on EDGAR |