Core Natural Resources, Inc. SEC filings CNR
Core Natural Resources, Inc. has 667 filings in SEC EDGAR's recent list, going back to Jul 11, 2017. Its latest annual report, Form 10-K, was filed on Feb 17, 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, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 5, 2026 | Nov 5, 2026 |
| SD | Specialized disclosure (conflict minerals) | Sep 23, 2026 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 19, 2026 | Aug 18, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 6, 2026 | Aug 6, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 4, 2026 | Jun 4, 2026 |
| 8-K | Current report | May 19, 2026 | May 13, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 7, 2026 | May 7, 2026 |
| 8-K | Current report | May 4, 2026 | Apr 29, 2026 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure
|
Apr 30, 2026 | Apr 30, 2026 |
| DEFA14A | Additional proxy material | Mar 16, 2026 | — |
| DEF 14A | Proxy statement | Mar 16, 2026 | Apr 30, 2026 |
| 10-K/A | Amended annual report | Feb 27, 2026 | Dec 31, 2025 |
| 10-K | Annual report | Feb 17, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 12, 2026 | Feb 12, 2026 |
| 8-K | Current report | Jan 12, 2026 | Jan 8, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 18, 2025 | Dec 18, 2025 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 6, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 8, 2025 | Oct 6, 2025 |
| SD | Specialized disclosure (conflict minerals) | Sep 17, 2025 | — |
| 10-Q | Quarterly report | Aug 5, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 5, 2025 | Aug 5, 2025 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Jul 31, 2025 | Jul 28, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 30, 2025 | Jun 30, 2025 |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 8, 2025 | May 8, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Apr 30, 2025 | Apr 29, 2025 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Mar 28, 2025 | Mar 27, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 24, 2025 | Mar 24, 2025 |
| ARS | Annual report to shareholders | Mar 17, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 17, 2025 | — |
| DEF 14A | Proxy statement | Mar 17, 2025 | Apr 29, 2025 |
| 8-K |
Current report
Other events
|
Feb 20, 2025 | Feb 20, 2025 |
| 10-K | Annual report | Feb 20, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 20, 2025 | Feb 20, 2025 |
| 8-K/A | Amended current report | Feb 18, 2025 | Jan 13, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 16, 2025 | Jan 16, 2025 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, New debt, Change to shareholder rights, Officer or director change, Bylaw or fiscal year change, Regulation FD disclosure, Other events
|
Jan 15, 2025 | Jan 13, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jan 10, 2025 | Jan 9, 2025 |
| 425 | Filing | Jan 3, 2025 | — |
| 8-K |
Current report
Other events
|
Jan 3, 2025 | Jan 3, 2025 |
| 8-K |
Current report
Officer or director change
|
Dec 6, 2024 | Dec 5, 2024 |
| EFFECT | Filing | Nov 26, 2024 | — |
| 424B3 | Prospectus | Nov 26, 2024 | — |
| CORRESP | Letter to the SEC | Nov 22, 2024 | — |
| S-4/A | Filing | Nov 18, 2024 | — |
| CORRESP | Letter to the SEC | Nov 18, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Nov 12, 2024 | Nov 6, 2024 |
| UPLOAD | Letter from the SEC | Nov 7, 2024 | — |
| 425 | Filing | Nov 6, 2024 | — |
| 425 | Filing | Nov 5, 2024 | — |
| 425 | Filing | Nov 5, 2024 | — |
| 10-Q | Quarterly report | Nov 5, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 5, 2024 | Nov 5, 2024 |
| CORRESP | Letter to the SEC | Nov 1, 2024 | — |
| UPLOAD | Letter from the SEC | Oct 25, 2024 | — |
| UPLOAD | Letter from the SEC | Oct 25, 2024 | — |
| 425 | Filing | Oct 15, 2024 | — |
| 8-K |
Current report
Other events
|
Oct 15, 2024 | Oct 14, 2024 |
| S-4 | Registration for a merger or exchange | Oct 1, 2024 | — |
| SD | Specialized disclosure (conflict minerals) | Sep 25, 2024 | — |
| 425 | Filing | Sep 3, 2024 | — |
| 425 | Filing | Aug 26, 2024 | — |
| 425 | Filing | Aug 22, 2024 | — |
| 425 | Filing | Aug 21, 2024 | — |
| 425 | Filing | Aug 21, 2024 | — |
| 425 | Filing | Aug 21, 2024 | — |
| 425 | Filing | Aug 21, 2024 | — |
| 425 | Filing | Aug 21, 2024 | — |
| 425 | Filing | Aug 21, 2024 | — |
| 425 | Filing | Aug 21, 2024 | — |
| 8-K |
Current report
Material agreement, Officer or director change, Other events
|
Aug 21, 2024 | Aug 20, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 8, 2024 | Aug 8, 2024 |
| 10-Q | Quarterly report | May 7, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 7, 2024 | May 7, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
May 6, 2024 | Apr 30, 2024 |
| ARS | Annual report to shareholders | Apr 1, 2024 | Dec 31, 2023 |
| DEF 14A | Proxy statement | Apr 1, 2024 | Apr 30, 2024 |
| PRE 14A | Preliminary proxy statement | Mar 18, 2024 | Apr 30, 2024 |
| 10-K | Annual report | Feb 9, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 6, 2024 | Feb 6, 2024 |
| 10-Q | Quarterly report | Oct 31, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 31, 2023 | Oct 31, 2023 |
| 10-Q | Quarterly report | Aug 8, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 8, 2023 | Aug 8, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Jun 13, 2023 | Jun 12, 2023 |
| 8-K |
Current report
Shareholder vote results
|
May 2, 2023 | Apr 27, 2023 |
| 10-Q | Quarterly report | May 2, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 2, 2023 | May 2, 2023 |
| ARS | Annual report to shareholders | Mar 30, 2023 | Dec 31, 2022 |
| DEF 14A | Proxy statement | Mar 30, 2023 | — |
| 8-K |
Current report
Officer or director change
|
Mar 24, 2023 | Mar 20, 2023 |
| 10-K | Annual report | Feb 10, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 7, 2023 | Feb 7, 2023 |
| 8-K |
Current report
Results of operations, Officer or director change, Regulation FD disclosure
|
Jan 23, 2023 | Jan 19, 2023 |
| 8-K |
Current report
Other events
|
Nov 2, 2022 | Nov 2, 2022 |
| 10-Q | Quarterly report | Nov 1, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 1, 2022 | Nov 1, 2022 |
| 10-Q | Quarterly report | Aug 4, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 4, 2022 | Aug 4, 2022 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 25, 2022 | Jul 18, 2022 |
| 10-Q | Quarterly report | May 3, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 3, 2022 | May 3, 2022 |
| 8-K |
Current report
Shareholder vote results
|
May 2, 2022 | Apr 26, 2022 |
| DEFA14A | Additional proxy material | Apr 18, 2022 | — |
| DEFA14A | Additional proxy material | Mar 17, 2022 | — |
| DEF 14A | Proxy statement | Mar 17, 2022 | Apr 26, 2022 |
| S-3ASR | Automatic shelf registration | Feb 11, 2022 | — |
| 10-K | Annual report | Feb 11, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 8, 2022 | Feb 8, 2022 |
| 10-Q | Quarterly report | Nov 2, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 2, 2021 | Nov 2, 2021 |
| 8-K | Current report | Aug 31, 2021 | Aug 26, 2021 |
| 10-Q | Quarterly report | Aug 3, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 3, 2021 | Aug 3, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 4, 2021 | Apr 28, 2021 |
| 10-Q | Quarterly report | May 4, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 4, 2021 | May 4, 2021 |
| 8-K |
Current report
Material agreement, New debt
|
Apr 19, 2021 | Apr 1, 2021 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Mar 31, 2021 | Mar 29, 2021 |
| DEFA14A | Additional proxy material | Mar 19, 2021 | — |
| DEF 14A | Proxy statement | Mar 19, 2021 | Apr 28, 2021 |
| 10-K | Annual report | Feb 12, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 9, 2021 | Feb 9, 2021 |
| 8-K |
Current report
Officer or director change
|
Dec 31, 2020 | Dec 30, 2020 |
| S-8 | Employee stock plan registration | Dec 31, 2020 | — |
| 8-K |
Current report
Agreement ended, Acquisition or sale of assets, Shareholder vote results, Regulation FD disclosure
|
Dec 30, 2020 | Dec 29, 2020 |
| EFFECT | Filing | Nov 30, 2020 | — |
| 424B3 | Prospectus | Nov 30, 2020 | — |
| CORRESP | Letter to the SEC | Nov 30, 2020 | — |
| S-4/A | Filing | Nov 27, 2020 | — |
| UPLOAD | Letter from the SEC | Nov 18, 2020 | — |
| S-4 | Registration for a merger or exchange | Nov 13, 2020 | — |
| 425 | Filing | Nov 9, 2020 | — |
| 10-Q | Quarterly report | Nov 5, 2020 | Sep 30, 2020 |
| 425 | Filing | Nov 5, 2020 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 5, 2020 | Nov 5, 2020 |
| 425 | Filing | Oct 23, 2020 | — |
| 425 | Filing | Oct 23, 2020 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Oct 23, 2020 | Oct 22, 2020 |
| 10-Q | Quarterly report | Aug 10, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 10, 2020 | Aug 10, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 14, 2020 | Jul 14, 2020 |
| 8-K |
Current report
Officer or director change
|
Jun 18, 2020 | Jun 15, 2020 |
| 8-K |
Current report
Material agreement, New debt
|
Jun 11, 2020 | Jun 5, 2020 |
| S-8 | Employee stock plan registration | May 11, 2020 | — |
| 10-Q | Quarterly report | May 11, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 11, 2020 | May 11, 2020 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
May 8, 2020 | May 8, 2020 |
| DEFA14A | Additional proxy material | Apr 27, 2020 | — |
| 8-K |
Current report
Material agreement
|
Apr 2, 2020 | Mar 27, 2020 |
| DEFA14A | Additional proxy material | Mar 27, 2020 | — |
| DEF 14A | Proxy statement | Mar 27, 2020 | May 8, 2020 |
| PRE 14A | Preliminary proxy statement | Mar 16, 2020 | May 8, 2020 |
| 10-K | Annual report | Feb 14, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 11, 2020 | Feb 11, 2020 |
| 8-K |
Current report
Officer or director change
|
Jan 3, 2020 | Dec 27, 2019 |
| 10-Q | Quarterly report | Nov 5, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 5, 2019 | Nov 5, 2019 |
| 10-Q | Quarterly report | Aug 6, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 6, 2019 | Aug 6, 2019 |
| 8-K |
Current report
Shareholder vote results
|
May 13, 2019 | May 8, 2019 |
| 10-Q | Quarterly report | May 8, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 8, 2019 | May 8, 2019 |
| UPLOAD | Letter from the SEC | Apr 4, 2019 | — |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Apr 3, 2019 | Mar 28, 2019 |
| CORRESP | Letter to the SEC | Apr 1, 2019 | — |
| DEFA14A | Additional proxy material | Mar 27, 2019 | — |
| DEF 14A | Proxy statement | Mar 27, 2019 | May 8, 2019 |
| 8-K | Current report | Mar 21, 2019 | Mar 15, 2019 |
| UPLOAD | Letter from the SEC | Mar 19, 2019 | — |
| 10-K | Annual report | Feb 8, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 7, 2019 | Feb 7, 2019 |
| 10-Q | Quarterly report | Nov 1, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 1, 2018 | Nov 1, 2018 |
| 8-K |
Current report
Material agreement
|
Sep 6, 2018 | Aug 30, 2018 |
| 10-Q | Quarterly report | Aug 2, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 2, 2018 | Aug 2, 2018 |
| 8-K |
Current report
Shareholder vote results
|
May 9, 2018 | May 9, 2018 |
| 10-Q | Quarterly report | May 3, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 3, 2018 | May 3, 2018 |
| DEFA14A | Additional proxy material | Mar 28, 2018 | — |
| DEF 14A | Proxy statement | Mar 28, 2018 | May 9, 2018 |
| 10-K | Annual report | Feb 16, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 6, 2018 | Feb 6, 2018 |
| 10-Q | Quarterly report | Dec 13, 2017 | Sep 30, 2017 |
| 8-K |
Current report
Officer or director change
|
Dec 8, 2017 | Dec 4, 2017 |
| 8-K |
Current report
Material agreement, Results of operations, New debt, Officer or director change, Bylaw or fiscal year change, Regulation FD disclosure, Other events
|
Dec 4, 2017 | Nov 28, 2017 |
| 8-K |
Current report
Officer or director change, Other events
|
Nov 29, 2017 | Nov 22, 2017 |
| S-8 | Employee stock plan registration | Nov 22, 2017 | — |
| 8-K |
Current report
Material agreement, New debt, Officer or director change
|
Nov 15, 2017 | Nov 13, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 6, 2017 | Nov 6, 2017 |
| UPLOAD | Letter from the SEC | Nov 3, 2017 | — |
| CERTNYS | Auto-generated paper document | Nov 2, 2017 | — |
| CORRESP | Letter to the SEC | Nov 2, 2017 | — |
| 10-12B/A | Amendment no. 6 to form 10-12b | Nov 2, 2017 | — |
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.
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Company profile
- Industry
- Silver Ores (SIC 1220)
- Listed as
- CNR (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DC
- Headquarters
- Canonsburg, PA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1710366
- Former names
- CONSOL Energy Inc. (until Jan 10, 2025); CONSOL Mining Corp (until Nov 22, 2017)
Other Silver Ores companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.