MAGNACHIP SEMICONDUCTOR Corp SEC filings MX
MAGNACHIP SEMICONDUCTOR Corp has 976 filings in SEC EDGAR's recent list, going back to Apr 26, 2005. Its latest annual report, Form ARS, was filed on Apr 30, 2026 for the period ended Apr 30, 2026. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| EFFECT | Filing | Oct 13, 2026 | — |
| EFFECT | Filing | Jun 16, 2026 | — |
| CORRESP | Letter to the SEC | Jun 12, 2026 | — |
| UPLOAD | Letter from the SEC | Jun 11, 2026 | — |
| DRSLTR | Filing | Jun 8, 2026 | — |
| DRS | Filing | Jun 8, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 29, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 30, 2025 | — |
| SD | Specialized disclosure (conflict minerals) | May 30, 2024 | — |
| SD | Specialized disclosure (conflict minerals) | May 30, 2023 | — |
| UPLOAD | Letter from the SEC | Nov 17, 2022 | — |
| CORRESP | Letter to the SEC | Nov 14, 2022 | — |
| UPLOAD | Letter from the SEC | Oct 28, 2022 | — |
| SD | Specialized disclosure (conflict minerals) | May 27, 2022 | — |
| CERT | Nyse certification | Dec 27, 2021 | — |
| 8-A12B | Filing | Dec 14, 2021 | — |
| SD | Specialized disclosure (conflict minerals) | Jun 1, 2021 | — |
| 425 | Filing | May 28, 2021 | — |
| SD | Specialized disclosure (conflict minerals) | May 29, 2020 | — |
| CT ORDER | Filing | Mar 17, 2020 | — |
| CT ORDER | Filing | Sep 10, 2019 | — |
| SD | Specialized disclosure (conflict minerals) | May 31, 2019 | — |
| CT ORDER | Filing | Mar 19, 2019 | — |
| CT ORDER | Filing | Oct 9, 2018 | — |
| SD | Specialized disclosure (conflict minerals) | May 31, 2018 | — |
| CT ORDER | Filing | Mar 30, 2018 | — |
| CT ORDER | Filing | Oct 2, 2017 | — |
| UPLOAD | Letter from the SEC | Sep 27, 2017 | — |
| CORRESP | Letter to the SEC | Sep 14, 2017 | — |
| UPLOAD | Letter from the SEC | Aug 30, 2017 | — |
| CORRESP | Letter to the SEC | Aug 16, 2017 | — |
| UPLOAD | Letter from the SEC | Aug 2, 2017 | — |
| SD | Specialized disclosure (conflict minerals) | May 31, 2017 | — |
| EFFECT | Filing | May 11, 2017 | — |
| UPLOAD | Letter from the SEC | May 9, 2017 | — |
| CORRESP | Letter to the SEC | May 9, 2017 | — |
| CT ORDER | Filing | Mar 27, 2017 | — |
| CT ORDER | Filing | Nov 14, 2016 | — |
| CT ORDER | Filing | Nov 7, 2016 | — |
| 8-A12B/A | Filing | Sep 2, 2016 | — |
| SD | Specialized disclosure (conflict minerals) | May 31, 2016 | — |
| 8-A12B/A | Filing | Mar 2, 2016 | — |
| CT ORDER | Filing | Feb 3, 2016 | — |
| UPLOAD | Letter from the SEC | Sep 3, 2015 | — |
| CORRESP | Letter to the SEC | Aug 21, 2015 | — |
| UPLOAD | Letter from the SEC | Aug 12, 2015 | — |
| CT ORDER | Filing | Aug 5, 2015 | — |
| CT ORDER | Filing | Aug 5, 2015 | — |
| CT ORDER | Filing | Aug 5, 2015 | — |
| SD | Specialized disclosure (conflict minerals) | Jun 1, 2015 | — |
| NT 10-Q | Filing | May 12, 2015 | Mar 31, 2015 |
| NT 10-K | Notification of late filing | Mar 17, 2015 | Dec 31, 2014 |
| CERTNYS | Auto-generated paper document | Mar 9, 2015 | — |
| 8-A12B | Form 8-a12b | Mar 6, 2015 | — |
| NT 10-Q | Notification of late 10-q filing | Nov 12, 2014 | Sep 30, 2014 |
| NT 10-Q | Filing | Aug 12, 2014 | Jun 30, 2014 |
| SD | Specialized disclosure (conflict minerals) | Jun 2, 2014 | — |
| NT 10-Q | Filing | May 12, 2014 | Mar 31, 2014 |
| NT 10-K | Filing | Mar 17, 2014 | Dec 31, 2013 |
| EFFECT | Filing | Oct 18, 2013 | — |
| CORRESP | Letter to the SEC | Oct 15, 2013 | — |
| CORRESP | Letter to the SEC | Oct 9, 2013 | — |
| UPLOAD | Letter from the SEC | Nov 5, 2012 | — |
| CORRESP | Letter to the SEC | Oct 9, 2012 | — |
| UPLOAD | Letter from the SEC | Sep 28, 2012 | — |
| EFFECT | Filing | Apr 26, 2012 | — |
| EFFECT | Filing | Mar 18, 2011 | — |
| EFFECT | Filing | Mar 10, 2011 | — |
| 8-A12B/A | Amendment no. 1 to form 8-a | Mar 10, 2011 | — |
| CORRESP | Letter to the SEC | Mar 10, 2011 | — |
| CORRESP | Letter to the SEC | Mar 8, 2011 | — |
| CERTNYS | Auto-generated paper document | Mar 3, 2011 | — |
| 8-A12B | For registration of certain classes of securities pursuant to section 12(b) | Mar 1, 2011 | — |
| RW | Registration withdrawal | Mar 1, 2011 | — |
| CORRESP | Letter to the SEC | Feb 3, 2011 | — |
| UPLOAD | Letter from the SEC | Nov 15, 2010 | — |
| UPLOAD | Letter from the SEC | Oct 29, 2010 | — |
| EFFECT | Filing | Oct 15, 2010 | — |
| EFFECT | Filing | Oct 15, 2010 | — |
| CORRESP | Letter to the SEC | Oct 15, 2010 | — |
| CORRESP | Letter to the SEC | Oct 15, 2010 | — |
| CORRESP | Letter to the SEC | Oct 13, 2010 | — |
| CORRESP | Letter to the SEC | Oct 13, 2010 | — |
| CORRESP | Letter to the SEC | Oct 12, 2010 | — |
| CORRESP | Letter to the SEC | Oct 12, 2010 | — |
| UPLOAD | Letter from the SEC | Aug 26, 2010 | — |
| UPLOAD | Letter from the SEC | Aug 26, 2010 | — |
| CERTNYS | Auto-generated paper document | Jun 24, 2010 | — |
| 8-A12B | Form 8-a12b | Jun 22, 2010 | — |
| UPLOAD | Letter from the SEC | Jun 4, 2010 | — |
| UPLOAD | Letter from the SEC | May 28, 2010 | — |
| UPLOAD | Letter from the SEC | May 25, 2010 | — |
| UPLOAD | Letter from the SEC | May 4, 2010 | — |
| UPLOAD | Letter from the SEC | Apr 9, 2010 | — |
| CT ORDER | Filing | Apr 7, 2010 | — |
| D | Filing | Nov 10, 2009 | — |
| 15-15D | Filing | Nov 9, 2009 | — |
| CT ORDER | Filing | Mar 9, 2009 | — |
| RW | Registration withdrawal | Jan 30, 2009 | — |
| REGDEX | Auto-generated paper document | Apr 26, 2005 | — |
Showing 100 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
- MX (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Cheongju-Si
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 1325702
- Former names
- MAGNACHIP SEMICONDUCTOR Corp (until Nov 5, 2026); MAGNACHIP SEMICONDUCTOR LLC (until Mar 8, 2011)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.