Constellium SE SEC filings CSTM
Constellium SE has 507 filings in SEC EDGAR's recent list, going back to Dec 3, 2012. Its latest annual report, Form ARS, was filed on Apr 10, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 28, 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 December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SD | Specialized disclosure (conflict minerals) | May 28, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 27, 2025 | — |
| SD | Specialized disclosure (conflict minerals) | May 28, 2024 | — |
| UPLOAD | Letter from the SEC | Mar 5, 2024 | — |
| CORRESP | Letter to the SEC | Mar 1, 2024 | — |
| UPLOAD | Letter from the SEC | Feb 19, 2024 | — |
| CORRESP | Letter to the SEC | Dec 20, 2023 | — |
| CORRESP | Letter to the SEC | Nov 29, 2023 | — |
| UPLOAD | Letter from the SEC | Nov 21, 2023 | — |
| CORRESP | Letter to the SEC | Oct 30, 2023 | — |
| CORRESP | Letter to the SEC | Oct 4, 2023 | — |
| UPLOAD | Letter from the SEC | Sep 29, 2023 | — |
| SD | Specialized disclosure (conflict minerals) | May 31, 2023 | — |
| SD | Specialized disclosure (conflict minerals) | May 27, 2022 | — |
| SD | Specialized disclosure (conflict minerals) | May 28, 2021 | — |
| SD | Specialized disclosure (conflict minerals) | May 29, 2020 | — |
| POSASR | Filing | Dec 12, 2019 | — |
| 8-A12B/A | Filing | Dec 12, 2019 | — |
| EFFECT | Filing | Oct 23, 2019 | — |
| CORRESP | Letter to the SEC | Oct 21, 2019 | — |
| POSASR | Filing | Jun 28, 2019 | — |
| 8-A12B/A | Filing | Jun 28, 2019 | — |
| UPLOAD | Letter from the SEC | Jun 11, 2019 | — |
| SD | Specialized disclosure (conflict minerals) | May 30, 2019 | — |
| UPLOAD | Letter from the SEC | Sep 21, 2018 | — |
| CORRESP | Letter to the SEC | Sep 14, 2018 | — |
| UPLOAD | Letter from the SEC | Aug 31, 2018 | — |
| SD | Specialized disclosure (conflict minerals) | May 31, 2018 | — |
| SD | Specialized disclosure (conflict minerals) | May 31, 2017 | — |
| EFFECT | Filing | Sep 20, 2016 | — |
| CORRESP | Letter to the SEC | Sep 16, 2016 | — |
| UPLOAD | Letter from the SEC | Jul 11, 2016 | — |
| CORRESP | Letter to the SEC | Jun 29, 2016 | — |
| UPLOAD | Letter from the SEC | Jun 8, 2016 | — |
| SD | Specialized disclosure (conflict minerals) | May 27, 2016 | — |
| SD | Specialized disclosure (conflict minerals) | Jun 1, 2015 | — |
| UPLOAD | Letter from the SEC | Jan 16, 2015 | — |
| CORRESP | Letter to the SEC | Jan 15, 2015 | — |
| UPLOAD | Letter from the SEC | Dec 31, 2014 | — |
| CORRESP | Letter to the SEC | Dec 3, 2014 | — |
| CORRESP | Letter to the SEC | Nov 10, 2014 | — |
| UPLOAD | Letter from the SEC | Oct 10, 2014 | — |
| CORRESP | Letter to the SEC | Sep 15, 2014 | — |
| UPLOAD | Letter from the SEC | Aug 19, 2014 | — |
| SD | Specialized disclosure (conflict minerals) | Jun 2, 2014 | — |
| EFFECT | Filing | Feb 5, 2014 | — |
| EFFECT | Filing | Dec 11, 2013 | — |
| EFFECT | Filing | Nov 6, 2013 | — |
| CT ORDER | Filing | May 23, 2013 | — |
| EFFECT | Filing | May 22, 2013 | — |
| CORRESP | Letter to the SEC | May 22, 2013 | — |
| CERTNYS | Auto-generated paper document | May 21, 2013 | — |
| 8-A12B/A | Filing | May 21, 2013 | — |
| 8-A12B | Filing | May 17, 2013 | — |
| UPLOAD | Letter from the SEC | May 16, 2013 | — |
| DRS/A | Filing | May 13, 2013 | — |
| DRSLTR | Filing | May 13, 2013 | — |
| DRS/A | Filing | May 10, 2013 | — |
| DRSLTR | Filing | May 10, 2013 | — |
| UPLOAD | Letter from the SEC | May 9, 2013 | — |
| DRSLTR | Filing | May 6, 2013 | — |
| DRSLTR | Filing | May 6, 2013 | — |
| DRS/A | Filing | May 6, 2013 | — |
| UPLOAD | Letter from the SEC | May 3, 2013 | — |
| DRSLTR | Filing | Apr 29, 2013 | — |
| DRS/A | Filing | Apr 26, 2013 | — |
| DRSLTR | Filing | Apr 26, 2013 | — |
| UPLOAD | Letter from the SEC | Apr 23, 2013 | — |
| DRS/A | Filing | Apr 16, 2013 | — |
| DRSLTR | Filing | Apr 16, 2013 | — |
| UPLOAD | Letter from the SEC | Apr 8, 2013 | — |
| DRS/A | Filing | Mar 28, 2013 | — |
| DRSLTR | Filing | Mar 27, 2013 | — |
| UPLOAD | Letter from the SEC | Feb 27, 2013 | — |
| DRS/A | Filing | Feb 15, 2013 | — |
| DRSLTR | Filing | Feb 14, 2013 | — |
| UPLOAD | Letter from the SEC | Dec 31, 2012 | — |
| DRS | Filing | Dec 4, 2012 | — |
| DRSLTR | Filing | Dec 3, 2012 | — |
Showing 79 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
- Secondary Smelting & Refining of Nonferrous Metals (SIC 3341)
- Listed as
- CSTM (NYSE)
- Fiscal year ends
- December 31
- Headquarters
- Paris, France
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1563411
- Former names
- Constellium N.V. (until Jun 28, 2019); Constellium Holdco B.V. (until May 17, 2013)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.