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 |
|---|---|---|---|
| 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 |
| 8-K |
Current report
Officer or director change
|
Aug 27, 2026 | Aug 24, 2026 |
| 10-K | Annual report | Aug 7, 2026 | Jun 28, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 29, 2026 | Jul 29, 2026 |
| 11-K | Employee savings plan report | Jun 25, 2026 | Dec 31, 2025 |
| SD | Specialized disclosure (conflict minerals) | Jun 1, 2026 | — |
| 10-Q | Quarterly report | Apr 23, 2026 | Mar 29, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 22, 2026 | Apr 22, 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 |
| 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 |
| 10-Q | Quarterly report | Oct 24, 2025 | Sep 28, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 22, 2025 | Oct 22, 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 |
| 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 |
| 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 |
| 8-K |
Current report
Shareholder vote results
|
Nov 7, 2024 | Nov 5, 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 |
| 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 |
| 8-K |
Current report
Officer or director change
|
Aug 30, 2024 | Aug 28, 2024 |
| 10-K | Annual report | Aug 29, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2024 | Jul 31, 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 |
| 10-Q | Quarterly report | Apr 29, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 24, 2024 | Apr 24, 2024 |
| 10-Q | Quarterly report | Jan 29, 2024 | Dec 24, 2023 |
| 8-K |
Current report
Results of operations
|
Jan 24, 2024 | Jan 24, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Nov 9, 2023 | Nov 7, 2023 |
| 10-Q | Quarterly report | Oct 23, 2023 | Sep 24, 2023 |
| 8-K |
Current report
Results of operations
|
Oct 18, 2023 | Oct 18, 2023 |
| ARS | Annual report to shareholders | Sep 27, 2023 | Jun 25, 2023 |
| DEFA14A | Additional proxy material | Sep 27, 2023 | — |
| DEF 14A | Proxy statement | Sep 27, 2023 | Nov 7, 2023 |
| 8-K |
Current report
Officer or director change
|
Aug 24, 2023 | Aug 23, 2023 |
| 10-K | Annual report | Aug 15, 2023 | Jun 25, 2023 |
| 8-K |
Current report
Results of operations
|
Jul 26, 2023 | Jul 26, 2023 |
| 11-K | Employee savings plan report | Jun 7, 2023 | Dec 31, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2023 | — |
| 10-Q | Quarterly report | Apr 24, 2023 | Mar 26, 2023 |
| 8-K |
Current report
Results of operations
|
Apr 19, 2023 | Apr 19, 2023 |
| 8-K |
Current report
Officer or director change
|
Feb 21, 2023 | Feb 21, 2023 |
| 8-K |
Current report
Officer or director change
|
Feb 9, 2023 | Feb 7, 2023 |
| 10-Q | Quarterly report | Jan 30, 2023 | Dec 25, 2022 |
| 8-K |
Current report
Results of operations, Exit or restructuring costs
|
Jan 25, 2023 | Jan 23, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Nov 10, 2022 | Nov 8, 2022 |
| 10-Q | Quarterly report | Oct 24, 2022 | Sep 25, 2022 |
| 8-K |
Current report
Results of operations
|
Oct 19, 2022 | Oct 19, 2022 |
| DEFA14A | Additional proxy material | Sep 28, 2022 | — |
| DEF 14A | Proxy statement | Sep 28, 2022 | Nov 8, 2022 |
| 8-K |
Current report
Officer or director change
|
Sep 19, 2022 | Sep 14, 2022 |
| 10-K | Annual report | Aug 24, 2022 | Jun 26, 2022 |
| 8-K |
Current report
Results of operations
|
Jul 27, 2022 | Jul 27, 2022 |
| 11-K | Employee savings plan report | Jun 16, 2022 | Dec 31, 2021 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2022 | — |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Other events
|
May 11, 2022 | May 11, 2022 |
| 10-Q | Quarterly report | Apr 26, 2022 | Mar 27, 2022 |
| 8-K |
Current report
Results of operations
|
Apr 20, 2022 | Apr 20, 2022 |
| 10-Q | Quarterly report | Feb 1, 2022 | Dec 26, 2021 |
| 8-K |
Current report
Results of operations
|
Jan 26, 2022 | Jan 26, 2022 |
| 8-K |
Current report
Officer or director change
|
Nov 16, 2021 | Nov 9, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Nov 12, 2021 | Nov 8, 2021 |
| 10-Q | Quarterly report | Oct 26, 2021 | Sep 26, 2021 |
| 8-K |
Current report
Results of operations
|
Oct 20, 2021 | Oct 20, 2021 |
| DEFA14A | Additional proxy material | Sep 28, 2021 | — |
| DEF 14A | Proxy statement | Sep 28, 2021 | Nov 8, 2021 |
| 10-K | Annual report | Aug 17, 2021 | Jun 27, 2021 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2021 | Jul 28, 2021 |
| 11-K | Employee savings plan report | Jun 22, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Material agreement, New debt
|
Jun 21, 2021 | Jun 17, 2021 |
| SD | Specialized disclosure (conflict minerals) | Jun 1, 2021 | — |
| 10-Q | Quarterly report | Apr 28, 2021 | Mar 28, 2021 |
| 8-K |
Current report
Results of operations
|
Apr 21, 2021 | Apr 21, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 19, 2021 | Mar 19, 2021 |
| 10-Q | Quarterly report | Feb 2, 2021 | Dec 27, 2020 |
| 8-K |
Current report
Results of operations
|
Jan 27, 2021 | Jan 27, 2021 |
| UPLOAD | Letter from the SEC | Jan 19, 2021 | — |
| CORRESP | Letter to the SEC | Jan 15, 2021 | — |
| UPLOAD | Letter from the SEC | Jan 6, 2021 | — |
| 8-K |
Current report
Officer or director change
|
Dec 28, 2020 | Dec 22, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 11, 2020 | Dec 11, 2020 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Nov 5, 2020 | Nov 3, 2020 |
| 10-Q | Quarterly report | Oct 27, 2020 | Sep 27, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 21, 2020 | Oct 21, 2020 |
| DEFA14A | Additional proxy material | Oct 15, 2020 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 2, 2020 | Oct 2, 2020 |
| DEFA14A | Additional proxy material | Sep 23, 2020 | — |
| DEF 14A | Proxy statement | Sep 23, 2020 | Nov 3, 2020 |
| 8-K |
Current report
Officer or director change
|
Sep 14, 2020 | Sep 10, 2020 |
| 8-K |
Current report
Officer or director change
|
Sep 8, 2020 | Sep 8, 2020 |
| 10-K | Annual report | Aug 18, 2020 | Jun 28, 2020 |
| 8-K |
Current report
Results of operations
|
Jul 29, 2020 | Jul 29, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 19, 2020 | Jun 19, 2020 |
| 11-K | Employee savings plan report | Jun 17, 2020 | Dec 31, 2019 |
| SD | Specialized disclosure (conflict minerals) | Jun 1, 2020 | — |
| 8-K |
Current report
Bylaw or fiscal year change
|
May 18, 2020 | May 12, 2020 |
| 8-K |
Current report
Material agreement, New debt, Other events
|
May 5, 2020 | May 5, 2020 |
| 424B5 | Prospectus supplement | May 1, 2020 | — |
| FWP | Free writing prospectus | Apr 30, 2020 | — |
| 424B5 | Prospectus supplement | Apr 30, 2020 | — |
| 8-K |
Current report
Other events
|
Apr 30, 2020 | Apr 30, 2020 |
| 10-Q | Quarterly report | Apr 28, 2020 | Mar 29, 2020 |
| 8-K |
Current report
Results of operations, Other events
|
Apr 22, 2020 | Apr 22, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 27, 2020 | Mar 27, 2020 |
| 8-K |
Current report
New debt
|
Mar 17, 2020 | Mar 16, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 17, 2020 | Mar 17, 2020 |
| 10-Q | Quarterly report | Feb 4, 2020 | Dec 29, 2019 |
| 8-K |
Current report
Results of operations
|
Jan 29, 2020 | Jan 29, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 13, 2019 | Dec 13, 2019 |
| 8-K |
Current report
Shareholder vote results
|
Nov 7, 2019 | Nov 5, 2019 |
| 10-Q | Quarterly report | Oct 29, 2019 | Sep 29, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 23, 2019 | Oct 23, 2019 |
| DEFA14A | Additional proxy material | Oct 16, 2019 | — |
| DEFA14A | Additional proxy material | Oct 15, 2019 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 4, 2019 | Oct 4, 2019 |
| S-8 | Employee stock plan registration | Sep 26, 2019 | — |
| DEFA14A | Additional proxy material | Sep 25, 2019 | — |
| DEF 14A | Proxy statement | Sep 25, 2019 | Nov 5, 2019 |
| 8-K |
Current report
Officer or director change
|
Aug 26, 2019 | Aug 21, 2019 |
| 10-K | Annual report | Aug 20, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Officer or director change
|
Aug 14, 2019 | Aug 8, 2019 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2019 | Jul 31, 2019 |
| 11-K | Employee savings plan report | Jun 28, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 14, 2019 | Jun 14, 2019 |
| 8-K |
Current report
Officer or director change
|
Jun 3, 2019 | Jun 3, 2019 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2019 | — |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
May 13, 2019 | May 8, 2019 |
| S-8 | Employee stock plan registration | Apr 30, 2019 | — |
| 10-Q | Quarterly report | Apr 30, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations
|
Apr 24, 2019 | Apr 24, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 26, 2019 | Mar 26, 2019 |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Mar 4, 2019 | Mar 4, 2019 |
| 424B5 | Prospectus supplement | Feb 26, 2019 | — |
| FWP | Free writing prospectus | Feb 25, 2019 | — |
| 424B3 | Prospectus | Feb 25, 2019 | — |
| 8-K |
Current report
Material agreement, New debt
|
Feb 25, 2019 | Feb 25, 2019 |
| S-3ASR | Automatic shelf registration | Feb 21, 2019 | — |
| 10-Q | Quarterly report | Jan 30, 2019 | Dec 23, 2018 |
| 8-K |
Current report
Results of operations, Other events
|
Jan 23, 2019 | Jan 23, 2019 |
| 8-K/A |
Amended current report
Officer or director change
|
Dec 11, 2018 | Dec 5, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 10, 2018 | Dec 10, 2018 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 6, 2018 | Dec 5, 2018 |
| 8-K |
Current report
Officer or director change
|
Dec 3, 2018 | Nov 30, 2018 |
| 8-K |
Current report
Shareholder vote results
|
Nov 8, 2018 | Nov 6, 2018 |
| 10-Q | Quarterly report | Oct 23, 2018 | Sep 23, 2018 |
| 8-K |
Current report
Results of operations
|
Oct 16, 2018 | Oct 16, 2018 |
| DEFA14A | Additional proxy material | Sep 26, 2018 | — |
| DEF 14A | Proxy statement | Sep 26, 2018 | Nov 6, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 17, 2018 | Sep 17, 2018 |
| 10-K | Annual report | Aug 14, 2018 | Jun 24, 2018 |
| 8-K |
Current report
Results of operations
|
Jul 26, 2018 | Jul 26, 2018 |
| 11-K | Employee savings plan report | Jun 15, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 12, 2018 | Jun 12, 2018 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2018 | — |
| 8-K |
Current report
Officer or director change
|
May 14, 2018 | May 10, 2018 |
| 10-Q | Quarterly report | Apr 24, 2018 | Mar 25, 2018 |
| 8-K |
Current report
Results of operations
|
Apr 17, 2018 | Apr 17, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 12, 2018 | Mar 12, 2018 |
| 8-K |
Current report
Other events
|
Mar 6, 2018 | Mar 6, 2018 |
| 10-Q | Quarterly report | Jan 30, 2018 | Dec 24, 2017 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Jan 24, 2018 | Jan 24, 2018 |
| 8-K |
Current report
Officer or director change
|
Jan 8, 2018 | Jan 2, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 11, 2017 | Dec 11, 2017 |
| 8-K |
Current report
Material agreement, New debt, Shareholder vote results, Other events
|
Nov 14, 2017 | Nov 8, 2017 |
| 10-Q | Quarterly report | Oct 23, 2017 | Sep 24, 2017 |
| 8-K |
Current report
Material agreement, Results of operations, New debt
|
Oct 17, 2017 | Oct 13, 2017 |
| DEFA14A | Additional proxy material | Sep 28, 2017 | — |
| DEF 14A | Proxy statement | Sep 28, 2017 | Nov 8, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 15, 2017 | Sep 15, 2017 |
| 10-K | Annual report | Aug 15, 2017 | Jun 25, 2017 |
| 8-K |
Current report
Results of operations
|
Jul 26, 2017 | Jul 26, 2017 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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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.