Century Aluminum Co SEC filings CENX
Century Aluminum Co has 1,002 filings in SEC EDGAR's recent list, going back to Mar 3, 2010. Its latest annual report, Form 10-K, was filed on Mar 3, 2026 for the period ended Dec 31, 2025. 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 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 17, 2026 | Jun 15, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| 8-K |
Current report
Restatement
|
Mar 3, 2026 | Mar 2, 2026 |
| 8-K |
Current report
Results of operations
|
Feb 19, 2026 | Feb 19, 2026 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Regulation FD disclosure
|
Feb 2, 2026 | Feb 2, 2026 |
| 8-K/A |
Amended current report
Results of operations
|
Nov 21, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Acquisition or sale of assets
|
Nov 6, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 22, 2025 | Oct 21, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 7, 2025 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt, Regulation FD disclosure
|
Jul 24, 2025 | Jul 22, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 17, 2025 | Jul 16, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 20, 2025 | Jun 16, 2025 |
| 8-K |
Current report
Results of operations
|
May 7, 2025 | May 7, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 21, 2025 | Mar 21, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 20, 2025 | Feb 20, 2025 |
| 8-K |
Current report
Officer or director change
|
Dec 11, 2024 | Dec 5, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Nov 4, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 7, 2024 | Jun 3, 2024 |
| 8-K |
Current report
Results of operations
|
May 1, 2024 | May 1, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 25, 2024 | Mar 25, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 21, 2024 | Feb 21, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 19, 2023 | Dec 19, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2023 | Nov 8, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2023 | Aug 9, 2023 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 9, 2023 | Jun 5, 2023 |
| 8-K |
Current report
Results of operations
|
May 8, 2023 | May 8, 2023 |
| 8-K |
Current report
Material agreement
|
May 5, 2023 | May 2, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 23, 2023 | Feb 23, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 12, 2022 | Dec 12, 2022 |
| 8-K | Current report | Nov 7, 2022 | Nov 7, 2022 |
| 8-K | Current report | Aug 9, 2022 | Aug 9, 2022 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 1, 2022 | Aug 1, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 22, 2022 | Jun 22, 2022 |
| 8-K |
Current report
Material agreement, New debt, Shareholder vote results
|
Jun 16, 2022 | Jun 13, 2022 |
| 8-K | Current report | Apr 28, 2022 | Apr 28, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 24, 2022 | Feb 24, 2022 |
| 8-K |
Current report
Material agreement, New debt
|
Feb 9, 2022 | Feb 4, 2022 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 4, 2022 | Feb 1, 2022 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 27, 2021 | Dec 23, 2021 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 8, 2021 | Dec 6, 2021 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Nov 3, 2021 | Nov 2, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2021 | Nov 3, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2021 | Aug 4, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Jun 17, 2021 | Jun 14, 2021 |
| 8-K |
Current report
Officer or director change
|
May 28, 2021 | May 26, 2021 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
May 17, 2021 | May 17, 2021 |
| 8-K |
Current report
Results of operations
|
May 5, 2021 | May 5, 2021 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Apr 15, 2021 | Apr 14, 2021 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Apr 12, 2021 | Apr 6, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 5, 2021 | Apr 5, 2021 |
| 8-K |
Current report
Other events
|
Mar 25, 2021 | Mar 25, 2021 |
| 8-K |
Current report
Officer or director change
|
Mar 12, 2021 | Mar 8, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 18, 2021 | Feb 18, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 12, 2021 | Feb 8, 2021 |
| 8-K |
Current report
Officer or director change
|
Jan 29, 2021 | Jan 29, 2021 |
| 8-K |
Current report
Other events
|
Dec 7, 2020 | Dec 7, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2020 | Oct 29, 2020 |
| 8-K |
Current report
Other events
|
Oct 20, 2020 | Oct 20, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2020 | Aug 5, 2020 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Jul 2, 2020 | Jul 1, 2020 |
| 8-K |
Current report
Other events
|
Jun 19, 2020 | Jun 18, 2020 |
| 8-K |
Current report
Material agreement, Other events
|
Jun 18, 2020 | Jun 17, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Jun 11, 2020 | Jun 8, 2020 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2020 | Apr 30, 2020 |
| 8-K |
Current report
New debt, Other events
|
Mar 24, 2020 | Mar 19, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 20, 2020 | Feb 20, 2020 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Dec 6, 2019 | Dec 3, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2019 | Nov 5, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2019 | Aug 1, 2019 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 6, 2019 | Jun 3, 2019 |
| 8-K |
Current report
Other events
|
May 29, 2019 | May 28, 2019 |
| 8-K/A |
Amended current report
Officer or director change
|
May 15, 2019 | May 3, 2019 |
| 8-K |
Current report
Material agreement, New debt, Officer or director change
|
May 3, 2019 | May 3, 2019 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2019 | Apr 30, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 21, 2019 | Feb 21, 2019 |
| 8-K |
Current report
Other events
|
Nov 28, 2018 | Nov 28, 2018 |
| 8-K |
Current report
Results of operations
|
Oct 25, 2018 | Oct 25, 2018 |
| 8-K |
Current report
Other events
|
Oct 10, 2018 | Oct 10, 2018 |
| 8-K |
Current report
Other events
|
Oct 9, 2018 | Oct 9, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 2, 2018 | Oct 2, 2018 |
| 8-K |
Current report
Officer or director change
|
Sep 19, 2018 | Sep 19, 2018 |
| 8-K |
Current report
Officer or director change
|
Aug 28, 2018 | Aug 28, 2018 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2018 | Aug 1, 2018 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jul 16, 2018 | Jul 16, 2018 |
| 8-K |
Current report
Shareholder vote results
|
Jun 20, 2018 | Jun 18, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
May 30, 2018 | May 30, 2018 |
| 8-K |
Current report
Material agreement, New debt
|
May 16, 2018 | May 16, 2018 |
| 8-K |
Current report
Results of operations
|
May 3, 2018 | May 3, 2018 |
| 8-K |
Current report
Officer or director change
|
May 2, 2018 | May 1, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 9, 2018 | Mar 9, 2018 |
| 8-K |
Current report
Results of operations
|
Feb 22, 2018 | Feb 21, 2018 |
| 8-K |
Current report
Officer or director change
|
Dec 8, 2017 | Dec 8, 2017 |
| 8-K |
Current report
Results of operations
|
Oct 26, 2017 | Oct 26, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2017 | Aug 2, 2017 |
| 8-K |
Current report
Other events
|
Jul 28, 2017 | Jul 28, 2017 |
| 8-K |
Current report
Shareholder vote results
|
Jun 22, 2017 | Jun 19, 2017 |
| 8-K |
Current report
Results of operations
|
Apr 25, 2017 | Apr 25, 2017 |
| 8-K |
Current report
Results of operations
|
Feb 23, 2017 | Feb 23, 2017 |
| 8-K |
Current report
Material agreement
|
Feb 10, 2017 | Feb 10, 2017 |
| 8-K |
Current report
Acquisition or sale of assets
|
Jan 27, 2017 | Jan 26, 2017 |
| 8-K |
Current report
Material agreement
|
Dec 8, 2016 | Dec 8, 2016 |
| 8-K |
Current report
Officer or director change
|
Nov 18, 2016 | Nov 18, 2016 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2016 | Oct 27, 2016 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2016 | Jul 28, 2016 |
| 8-K |
Current report
Shareholder vote results
|
Jun 29, 2016 | Jun 27, 2016 |
| 8-K |
Current report
Results of operations
|
Apr 28, 2016 | Apr 28, 2016 |
| 8-K |
Current report
Material agreement
|
Apr 15, 2016 | Apr 15, 2016 |
| 8-K |
Current report
Officer or director change
|
Mar 24, 2016 | Mar 24, 2016 |
| 8-K |
Current report
Results of operations
|
Feb 19, 2016 | Feb 19, 2016 |
| 8-K |
Current report
Other events
|
Dec 18, 2015 | Dec 18, 2015 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Dec 14, 2015 | Dec 14, 2015 |
| 8-K |
Current report
Other events
|
Oct 30, 2015 | Oct 30, 2015 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2015 | Oct 29, 2015 |
| 8-K |
Current report
Other events
|
Oct 22, 2015 | Oct 22, 2015 |
| 8-K |
Current report
Shareholder vote results
|
Sep 3, 2015 | Sep 1, 2015 |
| 8-K |
Current report
Other events
|
Aug 25, 2015 | Aug 25, 2015 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2015 | Aug 6, 2015 |
| 8-K |
Current report
Exit or restructuring costs
|
Jul 31, 2015 | Jul 27, 2015 |
| 8-K |
Current report
Material agreement
|
Jul 1, 2015 | Jun 26, 2015 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2015 | Apr 30, 2015 |
| 8-K |
Current report
Officer or director change
|
Mar 31, 2015 | Mar 31, 2015 |
| 8-K |
Current report
Other events
|
Mar 26, 2015 | Mar 26, 2015 |
| 8-K |
Current report
Other events
|
Feb 26, 2015 | Feb 26, 2015 |
| 8-K |
Current report
Results of operations
|
Feb 24, 2015 | Feb 24, 2015 |
| 8-K |
Current report
Officer or director change
|
Feb 13, 2015 | Feb 12, 2015 |
| 8-K |
Current report
Material agreement
|
Dec 5, 2014 | Dec 3, 2014 |
| 8-K |
Current report
Acquisition or sale of assets, Other events
|
Dec 1, 2014 | Dec 1, 2014 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2014 | Oct 29, 2014 |
| 8-K |
Current report
Material agreement, Other events
|
Oct 24, 2014 | Oct 23, 2014 |
| 8-K |
Current report
Shareholder vote results
|
Sep 12, 2014 | Sep 8, 2014 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2014 | Jul 30, 2014 |
| 8-K |
Current report
Agreement ended, Officer or director change
|
Jun 27, 2014 | Jun 23, 2014 |
| 8-K |
Current report
Officer or director change
|
Jun 16, 2014 | Jun 16, 2014 |
| 8-K |
Current report
Results of operations
|
Apr 24, 2014 | Apr 24, 2014 |
| 8-K |
Current report
Results of operations
|
Feb 20, 2014 | Feb 20, 2014 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2013 | Nov 4, 2013 |
| 8-K |
Current report
Other events
|
Nov 1, 2013 | Nov 1, 2013 |
| 8-K |
Current report
Officer or director change
|
Oct 11, 2013 | Oct 8, 2013 |
| 8-K |
Current report
Shareholder vote results
|
Sep 27, 2013 | Sep 23, 2013 |
| 8-K/A |
Amended current report
Acquisition or sale of assets
|
Aug 15, 2013 | Jun 1, 2013 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2013 | Jul 30, 2013 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Jun 10, 2013 | Jun 4, 2013 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets
|
Jun 6, 2013 | Jun 1, 2013 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
May 28, 2013 | May 24, 2013 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 20, 2013 | May 20, 2013 |
| 8-K |
Current report
Material agreement, Other events
|
Apr 30, 2013 | Apr 28, 2013 |
| 8-K |
Current report
Results of operations
|
Apr 25, 2013 | Apr 25, 2013 |
| 8-K |
Current report
Other events
|
Apr 16, 2013 | Apr 16, 2013 |
| 8-K |
Current report
Officer or director change
|
Mar 25, 2013 | Mar 19, 2013 |
| 8-K |
Current report
Results of operations
|
Feb 21, 2013 | Feb 21, 2013 |
| 8-K |
Current report
Officer or director change, Other events
|
Feb 1, 2013 | Feb 1, 2013 |
| 8-K |
Current report
Officer or director change
|
Jan 3, 2013 | Jan 2, 2013 |
| 8-K |
Current report
Officer or director change
|
Dec 7, 2012 | Dec 4, 2012 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2012 | Nov 1, 2012 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Sep 18, 2012 | Sep 18, 2012 |
| 8-K |
Current report
Other events
|
Aug 20, 2012 | Aug 20, 2012 |
| 8-K |
Current report
Results of operations
|
Jul 24, 2012 | Jul 24, 2012 |
| 8-K |
Current report
Other events
|
Jun 14, 2012 | Jun 11, 2012 |
| 8-K |
Current report
Results of operations
|
Apr 24, 2012 | Apr 24, 2012 |
| 8-K/A |
Amended current report
Officer or director change
|
Apr 4, 2012 | Mar 30, 2012 |
| 8-K |
Current report
Officer or director change
|
Mar 21, 2012 | Mar 16, 2012 |
| 8-K |
Current report
Results of operations
|
Feb 23, 2012 | Feb 23, 2012 |
| 8-K |
Current report
Officer or director change
|
Feb 7, 2012 | Feb 7, 2012 |
| 8-K |
Current report
Other events
|
Jan 11, 2012 | Jan 10, 2012 |
| 8-K |
Current report
Officer or director change, Other events
|
Nov 17, 2011 | Nov 15, 2011 |
| 8-K |
Current report
Results of operations
|
Oct 25, 2011 | Oct 25, 2011 |
| 8-K |
Current report
Other events
|
Oct 3, 2011 | Oct 3, 2011 |
| 8-K |
Current report
Other events
|
Aug 11, 2011 | Aug 11, 2011 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2011 | Aug 4, 2011 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2011 | Aug 4, 2011 |
| 8-K |
Current report
Results of operations
|
Jul 25, 2011 | Jul 25, 2011 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Jun 9, 2011 | Jun 7, 2011 |
| 8-K |
Current report
Officer or director change
|
May 12, 2011 | May 11, 2011 |
| 8-K |
Current report
Results of operations
|
May 3, 2011 | May 3, 2011 |
| 8-K |
Current report
Other events
|
Apr 21, 2011 | Apr 21, 2011 |
| 8-K |
Current report
Material agreement
|
Apr 6, 2011 | Apr 5, 2011 |
| 8-K/A |
Amended current report
Officer or director change
|
Mar 16, 2011 | Jan 31, 2011 |
| 8-K |
Current report
Results of operations
|
Feb 15, 2011 | Feb 15, 2011 |
| 8-K |
Current report
Officer or director change
|
Jan 31, 2011 | Jan 31, 2011 |
| 8-K |
Current report
Other events
|
Oct 29, 2010 | Oct 29, 2010 |
| 8-K |
Current report
Results of operations
|
Oct 26, 2010 | Oct 26, 2010 |
| 8-K |
Current report
Results of operations
|
Jul 27, 2010 | Jul 27, 2010 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Jul 2, 2010 | Jul 1, 2010 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Jun 14, 2010 | Jun 8, 2010 |
| 8-K |
Current report
Other events
|
May 4, 2010 | May 3, 2010 |
| 8-K |
Current report
Results of operations
|
Apr 27, 2010 | Apr 27, 2010 |
| 8-K |
Current report
Officer or director change
|
Apr 21, 2010 | Apr 15, 2010 |
| 8-K |
Current report
Other events
|
Apr 15, 2010 | Apr 14, 2010 |
| 8-K |
Current report
Material agreement
|
Apr 7, 2010 | Apr 6, 2010 |
| 8-K |
Current report
Other events
|
Mar 31, 2010 | Mar 31, 2010 |
| 8-K |
Current report
Bylaw or fiscal year change, Other events
|
Mar 19, 2010 | Mar 19, 2010 |
Showing 194 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
- Primary Production of Aluminum (SIC 3334)
- Listed as
- CENX (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Chicago, IL
- SEC filer status
- Large accelerated filer
- SEC CIK
- 949157
Other Primary Production of Aluminum companies
- Alcoa Corp AA
- Aluminum Corp Of China Ltd ALMMF
Source: SEC EDGAR filings. This is company-reported data, not investment advice.