Kla Corp SEC filings KLAC
Kla Corp has 1,000 filings in SEC EDGAR's recent list, going back to May 26, 2017. Its latest annual report, Form ARS, was filed on Sep 22, 2026 for the period ended Jun 30, 2026. The latest quarterly report (Form 10-Q) was filed on Oct 29, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (results of operations). The company's fiscal year ends on June 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Oct 29, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2026 | Oct 28, 2026 |
| ARS | Annual report to shareholders | Sep 22, 2026 | Jun 30, 2026 |
| DEFA14A | Additional proxy material | Sep 22, 2026 | — |
| DEF 14A | Proxy statement | Sep 22, 2026 | Nov 4, 2026 |
| 10-K | Annual report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Other events
|
Aug 6, 2026 | Aug 6, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2026 | Jul 28, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jun 12, 2026 | Jun 11, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 26, 2026 | — |
| 8-K |
Current report
Other events
|
May 7, 2026 | May 7, 2026 |
| 10-Q | Quarterly report | Apr 30, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 29, 2026 | Apr 29, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Mar 12, 2026 | Mar 11, 2026 |
| 8-K |
Current report
Other events
|
Feb 5, 2026 | Feb 5, 2026 |
| 10-Q | Quarterly report | Jan 30, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Jan 29, 2026 | Jan 29, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results, Other events
|
Nov 7, 2025 | Nov 5, 2025 |
| S-8 | Employee stock plan registration | Nov 7, 2025 | — |
| 10-Q | Quarterly report | Oct 31, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2025 | Oct 29, 2025 |
| ARS | Annual report to shareholders | Sep 23, 2025 | Jun 30, 2025 |
| DEFA14A | Additional proxy material | Sep 23, 2025 | — |
| DEF 14A | Proxy statement | Sep 23, 2025 | Nov 5, 2025 |
| 10-K | Annual report | Aug 8, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Officer or director change, Other events
|
Aug 7, 2025 | Aug 7, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2025 | Jul 31, 2025 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Jul 8, 2025 | Jul 3, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 23, 2025 | — |
| 8-K |
Current report
Officer or director change, Other events
|
May 8, 2025 | May 8, 2025 |
| 10-Q | Quarterly report | May 1, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Officer or director change
|
May 1, 2025 | Apr 30, 2025 |
| 8-K |
Current report
Results of operations, Other events
|
Apr 30, 2025 | Apr 30, 2025 |
| 8-K |
Current report
Other events
|
Feb 13, 2025 | Feb 13, 2025 |
| 10-Q | Quarterly report | Jan 31, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Jan 30, 2025 | Jan 30, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 3, 2024 | Dec 2, 2024 |
| 8-K |
Current report
Officer or director change
|
Nov 15, 2024 | Nov 15, 2024 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Nov 8, 2024 | Nov 6, 2024 |
| S-8 | Employee stock plan registration | Nov 7, 2024 | — |
| 10-Q | Quarterly report | Oct 31, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2024 | Oct 30, 2024 |
| ARS | Annual report to shareholders | Sep 24, 2024 | Jun 30, 2024 |
| DEFA14A | Additional proxy material | Sep 24, 2024 | — |
| DEF 14A | Proxy statement | Sep 24, 2024 | Nov 6, 2024 |
| 8-K |
Current report
Officer or director change
|
Sep 20, 2024 | Sep 16, 2024 |
| 8-K |
Current report
Other events
|
Sep 3, 2024 | Sep 3, 2024 |
| 10-K | Annual report | Aug 5, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Other events
|
Aug 1, 2024 | Aug 1, 2024 |
| 8-K |
Current report
Officer or director change
|
Jul 25, 2024 | Jul 19, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 24, 2024 | Jul 24, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 24, 2024 | — |
| 8-K |
Current report
Other events
|
May 2, 2024 | May 2, 2024 |
| 10-Q | Quarterly report | Apr 26, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 25, 2024 | Apr 25, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 18, 2024 | Mar 18, 2024 |
| 8-K |
Current report
Other events
|
Feb 8, 2024 | Feb 7, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Feb 1, 2024 | Jan 30, 2024 |
| 424B5 | Prospectus supplement | Feb 1, 2024 | — |
| FWP | Free writing prospectus | Jan 30, 2024 | — |
| 424B5 | Prospectus supplement | Jan 30, 2024 | — |
| 10-Q | Quarterly report | Jan 26, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Jan 25, 2024 | Jan 25, 2024 |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Other events
|
Nov 3, 2023 | Nov 1, 2023 |
| S-8 | Employee stock plan registration | Nov 1, 2023 | — |
| 10-Q | Quarterly report | Oct 27, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Oct 25, 2023 | Oct 25, 2023 |
| ARS | Annual report to shareholders | Sep 21, 2023 | Jun 30, 2023 |
| DEFA14A | Additional proxy material | Sep 21, 2023 | — |
| DEF 14A | Proxy statement | Sep 21, 2023 | Nov 1, 2023 |
| 8-K |
Current report
Other events
|
Sep 6, 2023 | Sep 2, 2023 |
| 10-K | Annual report | Aug 4, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Other events
|
Aug 3, 2023 | Aug 3, 2023 |
| 8-K |
Current report
Results of operations
|
Jul 27, 2023 | Jul 27, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jul 24, 2023 | Jul 24, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 23, 2023 | — |
| 8-K |
Current report
Other events
|
May 5, 2023 | May 4, 2023 |
| 10-Q | Quarterly report | Apr 28, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
Apr 26, 2023 | Apr 26, 2023 |
| 8-K |
Current report
Other events
|
Feb 6, 2023 | Feb 2, 2023 |
| S-8 | Employee stock plan registration | Feb 3, 2023 | — |
| 10-Q | Quarterly report | Jan 27, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Jan 26, 2023 | Jan 26, 2023 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results, Other events
|
Nov 4, 2022 | Nov 2, 2022 |
| 10-Q | Quarterly report | Oct 28, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Oct 26, 2022 | Oct 26, 2022 |
| DEFA14A | Additional proxy material | Oct 21, 2022 | — |
| DEFA14A | Additional proxy material | Oct 11, 2022 | — |
| PX14A6G | Filing | Oct 6, 2022 | — |
| DEFA14A | Additional proxy material | Sep 22, 2022 | — |
| DEF 14A | Proxy statement | Sep 22, 2022 | Nov 2, 2022 |
| 10-K | Annual report | Aug 5, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Officer or director change, Other events
|
Aug 5, 2022 | Aug 4, 2022 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2022 | Jul 28, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 6, 2022 | Jul 6, 2022 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Jun 24, 2022 | Jun 23, 2022 |
| 424B5 | Prospectus supplement | Jun 23, 2022 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure, Other events
|
Jun 22, 2022 | Jun 21, 2022 |
| FWP | Free writing prospectus | Jun 21, 2022 | — |
| 424B5 | Prospectus supplement | Jun 21, 2022 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 16, 2022 | Jun 15, 2022 |
| S-8 | Employee stock plan registration | Jun 9, 2022 | — |
| S-3ASR | Automatic shelf registration | Jun 9, 2022 | — |
| 8-K |
Current report
Material agreement, Agreement ended, Regulation FD disclosure
|
Jun 8, 2022 | Jun 8, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2022 | — |
| 8-K |
Current report
Other events
|
May 5, 2022 | May 5, 2022 |
| 10-Q | Quarterly report | Apr 29, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
Apr 28, 2022 | Apr 28, 2022 |
| 8-K |
Current report
Other events
|
Feb 2, 2022 | Feb 2, 2022 |
| 10-Q | Quarterly report | Jan 28, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Jan 27, 2022 | Jan 27, 2022 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Nov 5, 2021 | Nov 3, 2021 |
| 10-Q | Quarterly report | Oct 28, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2021 | Oct 27, 2021 |
| DEFA14A | Additional proxy material | Sep 24, 2021 | — |
| DEF 14A | Proxy statement | Sep 24, 2021 | Nov 3, 2021 |
| 10-K | Annual report | Aug 6, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Other events
|
Aug 6, 2021 | Aug 5, 2021 |
| 8-K |
Current report
Results of operations
|
Jul 29, 2021 | Jul 29, 2021 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2021 | — |
| 8-K |
Current report
Bylaw or fiscal year change, Other events
|
May 7, 2021 | May 6, 2021 |
| 10-Q | Quarterly report | Apr 30, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
Apr 29, 2021 | Apr 29, 2021 |
| 8-K |
Current report
Other events
|
Feb 9, 2021 | Feb 9, 2021 |
| 10-Q | Quarterly report | Feb 4, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 3, 2021 | Feb 3, 2021 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Nov 6, 2020 | Nov 4, 2020 |
| 10-Q | Quarterly report | Oct 30, 2020 | Sep 30, 2020 |
| PX14A6G | Filing | Oct 29, 2020 | — |
| 8-K |
Current report
Results of operations
|
Oct 28, 2020 | Oct 28, 2020 |
| DEFA14A | Additional proxy material | Oct 14, 2020 | — |
| DEFA14A | Additional proxy material | Sep 23, 2020 | — |
| DEF 14A | Proxy statement | Sep 23, 2020 | Nov 4, 2020 |
| 10-K | Annual report | Aug 7, 2020 | Jun 30, 2020 |
| S-8 | Employee stock plan registration | Aug 7, 2020 | — |
| 8-K |
Current report
Other events
|
Aug 6, 2020 | Aug 6, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2020 | Aug 3, 2020 |
| SD | Specialized disclosure (conflict minerals) | May 21, 2020 | — |
| 8-K |
Current report
Other events
|
May 7, 2020 | May 7, 2020 |
| 10-Q | Quarterly report | May 6, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
May 5, 2020 | May 5, 2020 |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Mar 3, 2020 | Feb 28, 2020 |
| 8-K |
Current report
Material agreement, Other events
|
Feb 24, 2020 | Feb 19, 2020 |
| 424B5 | Prospectus supplement | Feb 21, 2020 | — |
| FWP | Free writing prospectus | Feb 19, 2020 | — |
| 424B5 | Prospectus supplement | Feb 19, 2020 | — |
| 8-K |
Current report
Officer or director change, Other events
|
Feb 13, 2020 | Feb 10, 2020 |
| 10-Q | Quarterly report | Feb 5, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2020 | Feb 4, 2020 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Nov 8, 2019 | Nov 5, 2019 |
| 10-Q | Quarterly report | Oct 31, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2019 | Oct 30, 2019 |
| DEFA14A | Additional proxy material | Oct 25, 2019 | — |
| DEFA14A | Additional proxy material | Sep 20, 2019 | — |
| DEF 14A | Proxy statement | Sep 20, 2019 | Nov 5, 2019 |
| 8-K |
Current report
Officer or director change
|
Aug 21, 2019 | Aug 16, 2019 |
| S-8 | Employee stock plan registration | Aug 19, 2019 | — |
| 10-K | Annual report | Aug 16, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2019 | Aug 5, 2019 |
| 8-K |
Current report
Officer or director change, Other events
|
Aug 1, 2019 | Aug 1, 2019 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jul 16, 2019 | Jul 15, 2019 |
| 8-K |
Current report
Officer or director change
|
Jun 10, 2019 | Jun 10, 2019 |
| SD | Specialized disclosure (conflict minerals) | May 23, 2019 | — |
| 10-Q | Quarterly report | May 8, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations
|
May 6, 2019 | May 6, 2019 |
| 8-K |
Current report
Other events
|
May 3, 2019 | May 3, 2019 |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Mar 20, 2019 | Mar 20, 2019 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 15, 2019 | Mar 13, 2019 |
| 424B5 | Prospectus supplement | Mar 14, 2019 | — |
| FWP | Free writing prospectus | Mar 14, 2019 | — |
| 424B5 | Prospectus supplement | Mar 13, 2019 | — |
| 8-K/A |
Amended current report
Acquisition or sale of assets
|
Mar 11, 2019 | Feb 14, 2019 |
| S-8 | Employee stock plan registration | Mar 7, 2019 | — |
| 8-K |
Current report
Acquisition or sale of assets, New debt, Other events
|
Feb 20, 2019 | Feb 14, 2019 |
| 425 | Filing | Feb 19, 2019 | — |
| 8-K |
Current report
Officer or director change, Other events
|
Feb 1, 2019 | Jan 31, 2019 |
| S-4MEF | Filing | Jan 31, 2019 | — |
| 425 | Filing | Jan 30, 2019 | — |
| 10-Q | Quarterly report | Jan 29, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Results of operations
|
Jan 29, 2019 | Jan 29, 2019 |
| 425 | Filing | Dec 26, 2018 | — |
| S-8 | Employee stock plan registration | Nov 8, 2018 | — |
| 8-K |
Current report
Material agreement, New debt, Shareholder vote results, Other events
|
Nov 8, 2018 | Nov 8, 2018 |
| 10-Q | Quarterly report | Oct 31, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2018 | Oct 29, 2018 |
| DEFA14A | Additional proxy material | Sep 28, 2018 | — |
| DEF 14A | Proxy statement | Sep 28, 2018 | Nov 7, 2018 |
| 8-K |
Current report
Other events
|
Aug 13, 2018 | Aug 13, 2018 |
| 425 | 8-k | Aug 13, 2018 | — |
| 10-K | Annual report | Aug 6, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Other events
|
Aug 2, 2018 | Aug 2, 2018 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Jul 30, 2018 | Jul 25, 2018 |
| 8-K |
Current report
Other events
|
Jul 12, 2018 | Jul 12, 2018 |
| 425 | 8-k | Jul 12, 2018 | — |
| 8-K |
Current report
Other events
|
Jun 19, 2018 | Jun 18, 2018 |
| 425 | 8-k | Jun 19, 2018 | — |
| EFFECT | Filing | Jun 7, 2018 | — |
| 424B3 | Prospectus | Jun 7, 2018 | — |
| S-4/A | Filing | Jun 7, 2018 | — |
| CORRESP | Letter to the SEC | Jun 6, 2018 | — |
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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Optical Instruments & Lenses (SIC 3827)
- Listed as
- KLAC (Nasdaq)
- Fiscal year ends
- June 30
- Incorporated in
- DE
- Headquarters
- Milpitas, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 319201
- Former names
- KLA TENCOR CORP (until Jul 3, 2019); KLA INSTRUMENTS CORP (until Feb 11, 1997)
Other Optical Instruments & Lenses companies
- Coherent Corp. COHR
- Nova Ltd. NVMI
- Camtek Ltd CAMT
- Syntec Optics Holdings, Inc. OPTX
- Optex Systems Holdings Inc OPXS
- MultiSensor AI Holdings, Inc. MSAI
- MetaOptics Ltd MOTLY
Source: SEC EDGAR filings. This is company-reported data, not investment advice.