Lam Research Corp SEC filings LRCX
Lam Research Corp has 1,000 filings in SEC EDGAR's recent list, going back to Mar 13, 2015. Its latest annual report, Form ARS, was filed on Sep 24, 2026 for the period ended Jun 28, 2026. The latest quarterly report (Form 10-Q) was filed on Oct 22, 2026, covering the quarter ended Sep 27, 2026. The most recent current report (Form 8-K) was filed on Oct 21, 2026 (results of operations). The company's fiscal year ends on June 27.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 3, 2026 | Nov 2, 2026 |
| 4 | Insider transaction | Nov 2, 2026 | Oct 30, 2026 |
| 144 | Notice of proposed sale | Nov 2, 2026 | — |
| 4 | Insider transaction | Oct 26, 2026 | Oct 23, 2026 |
| 144 | Notice of proposed sale | Oct 23, 2026 | — |
| 10-Q | Quarterly report | Oct 22, 2026 | Sep 27, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 21, 2026 | Oct 21, 2026 |
| ARS | Annual report to shareholders | Sep 24, 2026 | Jun 28, 2026 |
| DEFA14A | Additional proxy material | Sep 24, 2026 | — |
| DEF 14A | Proxy statement | Sep 24, 2026 | Nov 3, 2026 |
| 4 | Insider transaction | Sep 10, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 10, 2026 | Sep 9, 2026 |
| 144 | Notice of proposed sale | Sep 9, 2026 | — |
| 144 | Notice of proposed sale | Sep 9, 2026 | — |
| 4 | Insider transaction | Sep 3, 2026 | Sep 2, 2026 |
| 144 | Notice of proposed sale | Sep 2, 2026 | — |
| 4 | Insider transaction | Sep 1, 2026 | Aug 31, 2026 |
| 144 | Notice of proposed sale | Aug 31, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Aug 27, 2026 | Aug 24, 2026 |
| 10-K | Annual report | Aug 7, 2026 | Jun 28, 2026 |
| 4 | Insider transaction | Aug 7, 2026 | Aug 6, 2026 |
| 4 | Insider transaction | Aug 6, 2026 | Aug 5, 2026 |
| 144 | Notice of proposed sale | Aug 6, 2026 | — |
| 8-K |
Current report
Results of operations
|
Jul 29, 2026 | Jul 29, 2026 |
| 4 | Insider transaction | Jul 14, 2026 | Jul 13, 2026 |
| 144 | Notice of proposed sale | Jul 13, 2026 | — |
| 4 | Insider transaction | Jul 6, 2026 | Jul 2, 2026 |
| 144 | Notice of proposed sale | Jul 2, 2026 | — |
| 11-K | Employee savings plan report | Jun 25, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 12, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 144 | Notice of proposed sale | Jun 12, 2026 | — |
| 144 | Notice of proposed sale | Jun 11, 2026 | — |
| 4 | Insider transaction | Jun 2, 2026 | Jun 1, 2026 |
| SD | Specialized disclosure (conflict minerals) | Jun 1, 2026 | — |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| 144 | Notice of proposed sale | May 14, 2026 | — |
| 4 | Insider transaction | May 4, 2026 | May 1, 2026 |
| 144 | Notice of proposed sale | May 1, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 30, 2026 | — |
| 4 | Insider transaction | Apr 28, 2026 | Apr 27, 2026 |
| 144 | Notice of proposed sale | Apr 27, 2026 | — |
| 10-Q | Quarterly report | Apr 23, 2026 | Mar 29, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 22, 2026 | Apr 22, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Mar 11, 2026 | Mar 10, 2026 |
| 3 | Initial insider ownership | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 4 | Insider transaction | Mar 5, 2026 | Mar 4, 2026 |
| 144 | Notice of proposed sale | Mar 4, 2026 | — |
| 144 | Notice of proposed sale | Mar 4, 2026 | — |
| 4 | Insider transaction | Mar 3, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 27, 2026 |
| 144 | Notice of proposed sale | Mar 2, 2026 | — |
| 144 | Notice of proposed sale | Mar 2, 2026 | — |
| 4 | Insider transaction | Feb 25, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 6, 2026 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 6, 2026 |
| 3/A | Form 3/a | Feb 9, 2026 | Feb 3, 2026 |
| 144 | Notice of proposed sale | Feb 6, 2026 | — |
| 4 | Insider transaction | Feb 5, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 5, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 5, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 5, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 5, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 5, 2026 | Feb 3, 2026 |
| 3 | Initial insider ownership | Feb 5, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 5, 2026 | Feb 4, 2026 |
| 8-K/A |
Amended current report
Officer or director change
|
Feb 4, 2026 | Jan 30, 2026 |
| 8-K |
Current report
Officer or director change
|
Feb 3, 2026 | Jan 30, 2026 |
| 10-Q | Quarterly report | Jan 29, 2026 | Dec 28, 2025 |
| 8-K |
Current report
Results of operations
|
Jan 28, 2026 | Jan 28, 2026 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 17, 2025 |
| 144 | Notice of proposed sale | Dec 17, 2025 | — |
| 4 | Insider transaction | Nov 17, 2025 | Nov 14, 2025 |
| 144 | Notice of proposed sale | Nov 14, 2025 | — |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 6, 2025 |
| 144 | Notice of proposed sale | Nov 7, 2025 | — |
| S-8 | Employee stock plan registration | Nov 6, 2025 | — |
| S-8 POS | Filing | Nov 6, 2025 | — |
| 8-K |
Current report
Change to shareholder rights, Officer or director change, Bylaw or fiscal year change, Shareholder vote results
|
Nov 6, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Nov 4, 2025 | Nov 3, 2025 |
| 4 | Insider transaction | Nov 3, 2025 | Oct 31, 2025 |
| 144 | Notice of proposed sale | Nov 3, 2025 | — |
| 4 | Insider transaction | Oct 28, 2025 | Oct 27, 2025 |
| 144 | Notice of proposed sale | Oct 27, 2025 | — |
| 10-Q | Quarterly report | Oct 24, 2025 | Sep 28, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 22, 2025 | Oct 22, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Oct 13, 2025 |
| 144 | Notice of proposed sale | Oct 14, 2025 | — |
| DEFA14A | Additional proxy material | Sep 24, 2025 | — |
| ARS | Annual report to shareholders | Sep 24, 2025 | Jun 29, 2025 |
| DEFA14A | Additional proxy material | Sep 24, 2025 | — |
| DEF 14A | Proxy statement | Sep 24, 2025 | Nov 4, 2025 |
| PRE 14A | Preliminary proxy statement | Sep 12, 2025 | Nov 4, 2025 |
| 8-K |
Current report
Auditor change
|
Sep 11, 2025 | Sep 8, 2025 |
| S-3ASR | Automatic shelf registration | Aug 11, 2025 | — |
| 10-K | Annual report | Aug 11, 2025 | Jun 29, 2025 |
| 4 | Insider transaction | Aug 6, 2025 | Aug 5, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2025 | Jul 30, 2025 |
| 11-K | Employee savings plan report | Jun 26, 2025 | Dec 31, 2024 |
| SD | Specialized disclosure (conflict minerals) | Jun 2, 2025 | — |
| 8-K |
Current report
Bylaw or fiscal year change
|
May 21, 2025 | May 20, 2025 |
| 10-Q | Quarterly report | Apr 25, 2025 | Mar 30, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 23, 2025 | Apr 23, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 8, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 7, 2025 | — |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 144 | Notice of proposed sale | Feb 20, 2025 | — |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 5, 2025 |
| 10-Q | Quarterly report | Jan 31, 2025 | Dec 29, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Jan 29, 2025 | Jan 27, 2025 |
| 8-K |
Current report
Results of operations
|
Jan 29, 2025 | Jan 29, 2025 |
| 4/A | Form 4/a | Jan 21, 2025 | Nov 4, 2024 |
| 4/A | Form 4/a | Jan 21, 2025 | Nov 6, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Nov 7, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 7, 2024 | Nov 6, 2024 |
| 4 | Insider transaction | Nov 5, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Nov 4, 2024 | Nov 1, 2024 |
| 144 | Notice of proposed sale | Nov 1, 2024 | — |
| 4 | Insider transaction | Nov 1, 2024 | Oct 31, 2024 |
| 10-Q | Quarterly report | Oct 28, 2024 | Sep 29, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 23, 2024 | Oct 23, 2024 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Oct 2, 2024 | Oct 2, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Oct 1, 2024 |
| 144 | Notice of proposed sale | Oct 1, 2024 | — |
| 4 | Insider transaction | Oct 1, 2024 | Sep 30, 2024 |
| ARS | Annual report to shareholders | Sep 25, 2024 | Jun 30, 2024 |
| DEFA14A | Additional proxy material | Sep 25, 2024 | — |
| DEF 14A | Proxy statement | Sep 25, 2024 | Nov 5, 2024 |
| 8-K |
Current report
Other events
|
Sep 25, 2024 | Sep 25, 2024 |
| 8-K |
Current report
Officer or director change
|
Sep 18, 2024 | Sep 13, 2024 |
| 3 | Initial insider ownership | Sep 5, 2024 | Aug 30, 2024 |
| 3 | Initial insider ownership | Sep 5, 2024 | Aug 30, 2024 |
| 8-K |
Current report
Officer or director change
|
Aug 30, 2024 | Aug 28, 2024 |
| 10-K | Annual report | Aug 29, 2024 | Jun 30, 2024 |
| 4 | Insider transaction | Aug 6, 2024 | Aug 5, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2024 | Jul 31, 2024 |
| 4 | Insider transaction | Jul 15, 2024 | Jul 12, 2024 |
| 144 | Notice of proposed sale | Jul 12, 2024 | — |
| 3 | Initial insider ownership | Jul 10, 2024 | Jul 8, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 27, 2024 |
| 144 | Notice of proposed sale | Jul 1, 2024 | — |
| 144 | Notice of proposed sale | Jun 28, 2024 | — |
| 11-K | Employee savings plan report | Jun 26, 2024 | Dec 31, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
May 21, 2024 | May 21, 2024 |
| 4 | Insider transaction | May 6, 2024 | May 3, 2024 |
| 144 | Notice of proposed sale | May 3, 2024 | — |
| 4 | Insider transaction | Apr 30, 2024 | Apr 29, 2024 |
| 10-Q | Quarterly report | Apr 29, 2024 | Mar 31, 2024 |
| 144 | Notice of proposed sale | Apr 29, 2024 | — |
| 8-K |
Current report
Results of operations
|
Apr 24, 2024 | Apr 24, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Apr 1, 2024 |
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Company profile
- Industry
- Special Industry Machinery, NEC (SIC 3559)
- Listed as
- LRCX (Nasdaq)
- Fiscal year ends
- June 27
- Incorporated in
- DE
- Headquarters
- Fremont, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 707549
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.