ALPHA & OMEGA SEMICONDUCTOR Ltd SEC filings AOSL
ALPHA & OMEGA SEMICONDUCTOR Ltd has 989 filings in SEC EDGAR's recent list, going back to Jan 16, 2007. Its latest annual report, Form ARS, was filed on Sep 30, 2026 for the period ended Jun 30, 2026. The latest quarterly report (Form 10-Q) was filed on May 6, 2026, covering the quarter ended Mar 31, 2026. The most recent current report (Form 8-K) was filed on Aug 12, 2026 (results of operations). The company's fiscal year ends on June 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| SD | Specialized disclosure (conflict minerals) | Feb 27, 2026 | — |
| UPLOAD | Letter from the SEC | Jun 5, 2025 | — |
| CORRESP | Letter to the SEC | Jun 4, 2025 | — |
| UPLOAD | Letter from the SEC | May 15, 2025 | — |
| CORRESP | Letter to the SEC | Apr 25, 2025 | — |
| UPLOAD | Letter from the SEC | Apr 11, 2025 | — |
| SD | Specialized disclosure (conflict minerals) | Feb 28, 2025 | — |
| SD | Specialized disclosure (conflict minerals) | Mar 4, 2024 | — |
| SD | Specialized disclosure (conflict minerals) | Mar 2, 2023 | — |
| UPLOAD | Letter from the SEC | Mar 1, 2023 | — |
| CORRESP | Letter to the SEC | Feb 14, 2023 | — |
| UPLOAD | Letter from the SEC | Feb 3, 2023 | — |
| NT 10-K | Nt 10-k fy 2022 | Aug 30, 2022 | Jun 30, 2022 |
| SD | Specialized disclosure (conflict minerals) | Mar 2, 2022 | — |
| SD | Specialized disclosure (conflict minerals) | Mar 31, 2021 | — |
| SD | Specialized disclosure (conflict minerals) | Jun 12, 2020 | — |
| UPLOAD | Letter from the SEC | Feb 27, 2020 | — |
| CORRESP | Letter to the SEC | Feb 26, 2020 | — |
| UPLOAD | Letter from the SEC | Feb 18, 2020 | — |
| CT ORDER | Filing | Jul 23, 2019 | — |
| SD | Specialized disclosure (conflict minerals) | May 13, 2019 | — |
| CT ORDER | Filing | Aug 30, 2018 | — |
| CT ORDER | Filing | Aug 30, 2018 | — |
| SD | Specialized disclosure (conflict minerals) | May 15, 2018 | — |
| CT ORDER | Filing | Dec 21, 2017 | — |
| CT ORDER | Filing | Aug 22, 2017 | — |
| CT ORDER | Filing | May 22, 2017 | — |
| SD | Specialized disclosure (conflict minerals) | May 19, 2017 | — |
| CT ORDER | Filing | Feb 28, 2017 | — |
| UPLOAD | Letter from the SEC | Feb 9, 2017 | — |
| CORRESP | Letter to the SEC | Feb 1, 2017 | — |
| UPLOAD | Letter from the SEC | Jan 27, 2017 | — |
| EFFECT | Filing | Jan 13, 2017 | — |
| CORRESP | Letter to the SEC | Jan 13, 2017 | — |
| CORRESP | Letter to the SEC | Jan 12, 2017 | — |
| CT ORDER | Filing | Jan 12, 2017 | — |
| CT ORDER | Filing | Jul 20, 2016 | — |
| SD | Specialized disclosure (conflict minerals) | May 19, 2016 | — |
| UPLOAD | Letter from the SEC | Apr 14, 2016 | — |
| CORRESP | Letter to the SEC | Mar 22, 2016 | — |
| UPLOAD | Letter from the SEC | Mar 16, 2016 | — |
| SC TO-I/A | Schedule to-i/a | Jul 14, 2015 | — |
| SC TO-I/A | Filing | Jul 8, 2015 | — |
| SC TO-I | Filing | Jun 8, 2015 | — |
| SC TO-C | Filing | Jun 8, 2015 | — |
| SD | Specialized disclosure (conflict minerals) | May 21, 2015 | — |
| CT ORDER | Filing | Dec 29, 2014 | — |
| CT ORDER | Filing | Dec 29, 2014 | — |
| CT ORDER | Filing | Oct 29, 2014 | — |
| SD | Specialized disclosure (conflict minerals) | May 30, 2014 | — |
| CT ORDER | Filing | Nov 8, 2013 | — |
| CT ORDER | Filing | Nov 8, 2013 | — |
| CT ORDER | Filing | Dec 7, 2012 | — |
| CT ORDER | Filing | Nov 19, 2012 | — |
| CT ORDER | Filing | Mar 8, 2012 | — |
| CT ORDER | Filing | Dec 8, 2011 | — |
| CT ORDER | Filing | Nov 29, 2011 | — |
| CT ORDER | Filing | Nov 28, 2011 | — |
| CT ORDER | Filing | Oct 25, 2010 | — |
| CT ORDER | Filing | Oct 25, 2010 | — |
| CT ORDER | Filing | May 4, 2010 | — |
| EFFECT | Filing | Apr 28, 2010 | — |
| CERTNAS | Auto-generated paper document | Apr 26, 2010 | — |
| 8-A12B | Form 8-a | Apr 22, 2010 | — |
| REGDEX | Auto-generated paper document | Mar 7, 2008 | — |
| REGDEX | Auto-generated paper document | Jan 16, 2007 | — |
Showing 66 filings. 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
- Semiconductors & Related Devices (SIC 3674)
- Listed as
- AOSL (Nasdaq)
- Fiscal year ends
- June 30
- Headquarters
- Sunnyvale, CA
- SEC filer status
- Accelerated filer
- SEC CIK
- 1387467
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.