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 |
|---|---|---|---|
| SD | Specialized disclosure (conflict minerals) | Sep 23, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | Sep 17, 2025 | — |
| 425 | Filing | Jan 3, 2025 | — |
| EFFECT | Filing | Nov 26, 2024 | — |
| CORRESP | Letter to the SEC | Nov 22, 2024 | — |
| CORRESP | Letter to the SEC | Nov 18, 2024 | — |
| UPLOAD | Letter from the SEC | Nov 7, 2024 | — |
| 425 | Filing | Nov 6, 2024 | — |
| 425 | Filing | Nov 5, 2024 | — |
| 425 | Filing | 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 | — |
| 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 | — |
| EFFECT | Filing | Nov 30, 2020 | — |
| CORRESP | Letter to the SEC | Nov 30, 2020 | — |
| UPLOAD | Letter from the SEC | Nov 18, 2020 | — |
| 425 | Filing | Nov 9, 2020 | — |
| 425 | Filing | Nov 5, 2020 | — |
| 425 | Filing | Oct 23, 2020 | — |
| 425 | Filing | Oct 23, 2020 | — |
| UPLOAD | Letter from the SEC | Apr 4, 2019 | — |
| CORRESP | Letter to the SEC | Apr 1, 2019 | — |
| UPLOAD | Letter from the SEC | Mar 19, 2019 | — |
| 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 | — |
| 10-12B/A | Amendment no. 5 to form 10-12b | Oct 27, 2017 | — |
| 10-12B/A | Amendment no. 4 to form 10-12b | Oct 16, 2017 | — |
| CORRESP | Letter to the SEC | Oct 6, 2017 | — |
| 10-12B/A | Amendment no. 3 to form 10-12b | Oct 6, 2017 | — |
| UPLOAD | Letter from the SEC | Sep 12, 2017 | — |
| 10-12B/A | Amendment no. 2 to form 10-12b | Sep 8, 2017 | — |
| CORRESP | Letter to the SEC | Aug 30, 2017 | — |
| 10-12B/A | Amendment no. 1 to form 10-12b | Aug 30, 2017 | — |
| UPLOAD | Letter from the SEC | Aug 7, 2017 | — |
| 10-12B | Form 10-12b | Jul 11, 2017 | — |
Showing 49 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
- 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.