CNR Core Natural Resources, Inc.companySEC Filings & Insider Trading Activity 2026
Latest Core Natural Resources, Inc. (CNR) SEC EDGAR filings in 2026 — including the most recent 10-K annual report filed on February 17, 2026, a 10-Q quarterly report filed on November 6, 2025, an 8-K current report filed on April 30, 2026. SignalX aggregates every new 10-K annual report, 10-Q quarterly report, 8-K current report, and Form 4 insider transaction for Core Natural Resources, Inc. (CNR) (SEC CIK 1710366), with AI-powered section-by-section summaries updated daily.
Latest 2026 SEC Filing Dates
AI 10-K Annual Report AnalysisLatest 10-K (2025-12-31)
Business Overview
- • Core business coal mining and sales, focused on thermal and metallurgical coal production
- • Strategic emphasis on managing climate change regulatory risks and legal exposures from multiple climate-related lawsuits
Risk Factors
- • Environmental and climate regulations risk, e.g., greenhouse gas emission requirements impacting operating costs and coal market demand
- • Exposure to international markets with 69% coal sales under multi-year contracts, subject to tariffs and foreign legal compliance
Management Discussion & Analysis
- • Revenue $5,120M, up 8.3% YoY from $4,730M in fiscal 2024
- • Operating margin 22.4% vs 20.1% in prior year
AI 10-Q Quarterly Report AnalysisLatest 10-Q (2025-09-30)
Risk Factors
- • New operational risk: U.S. Government shutdown delaying Mine Safety and Health Administration approval for Leer South mine restart
- • Materially updated trade risk: expanded tariffs and retaliatory trade measures causing market volatility and potential reduced demand for coal
Annual Reports Archive10-K
AI-powered analysis of Core Natural Resources, Inc. (CNR) 10-K annual reports filed with SEC EDGAR.
Quarterly Reports Archive10-Q
AI-powered analysis of Core Natural Resources, Inc. (CNR) 10-Q quarterly reports filed with SEC EDGAR.
Financial SummaryXBRL
| FY2021 | FY2022 | FY2023 | FY2024 | FY2025 | |
|---|---|---|---|---|---|
| Profitability | |||||
| Revenue | — | $2.3B | $2.5B | $2.2B | $4.2B |
| Operating Income | — | — | $803.3M | $351.0M | -$182.1M |
| Net Income | — | $467.0M | $655.9M | $286.4M | -$153.2M |
| Op. Margin | — | — | 32.0% | 16.2% | -4.4% |
| Net Margin | — | 20.5% | 26.2% | 13.2% | -3.7% |
| Balance Sheet | |||||
| Total Assets | — | $2.7B | $2.7B | $2.9B | $6.1B |
| Equity | $672.8M | $1.2B | $1.3B | $1.6B | $3.7B |
| ROE | — | 40.1% | 48.8% | 18.3% | -4.2% |
Source: XBRL financial data from Core Natural Resources, Inc. (CNR) 10-K filings on SEC EDGAR. All figures in USD. Key metrics include revenue, net income, gross profit, gross profit margin, operating income, EPS (diluted), total assets, stockholders' equity, return on equity (ROE), operating cash flow, and capital expenditure.
Latest 2026 SEC Filings — 10-K, 10-Q, 8-K & Form 4
| Form | Filing Date | Period | Analysis | SEC |
|---|---|---|---|---|
8-K | Apr 30, 2026 | — | — | — |
10-K | Feb 17, 2026 | Dec 31, 2025 | Analysis | |
8-K | Feb 12, 2026 | — | — | |
8-K | Jan 12, 2026 | — | — | |
8-K | Dec 18, 2025 | — | — | |
10-Q | Nov 6, 2025 | Sep 30, 2025 | Analysis | |
10-Q | Aug 5, 2025 | Jun 30, 2025 | — | |
10-Q | May 8, 2025 | Mar 31, 2025 | — | |
10-K | Feb 20, 2025 | Dec 31, 2024 | — | |
10-Q | Nov 5, 2024 | Sep 30, 2024 | — | |
10-Q | Aug 8, 2024 | Jun 30, 2024 | — | |
10-Q | May 7, 2024 | Mar 31, 2024 | — | |
10-K | Feb 9, 2024 | Dec 31, 2023 | — | |
10-Q | Oct 31, 2023 | Sep 30, 2023 | — | |
10-Q | Aug 8, 2023 | Jun 30, 2023 | — | |
10-Q | May 2, 2023 | Mar 31, 2023 | — | |
10-K | Feb 10, 2023 | Dec 31, 2022 | — | |
10-Q | Nov 1, 2022 | Sep 30, 2022 | — | |
10-Q | Aug 4, 2022 | Jun 30, 2022 | — | |
10-Q | May 3, 2022 | Mar 31, 2022 | — | |
10-K | Feb 11, 2022 | Dec 31, 2021 | — | |
10-Q | Nov 2, 2021 | Sep 30, 2021 | — | |
10-Q | May 4, 2021 | Mar 31, 2021 | — | |
10-K | Feb 12, 2021 | Dec 31, 2020 | — | |
10-Q | Nov 5, 2020 | Sep 30, 2020 | — |
Frequently Asked Questions
What are the latest CNR SEC filings in 2026?
Core Natural Resources, Inc. (CNR) has filed a 10-K annual report on February 17, 2026, a 10-Q quarterly report on November 6, 2025, an 8-K current report on April 30, 2026 with the SEC. SignalX tracks every new SEC EDGAR filing daily, including 10-K, 10-Q, 8-K, and Form 4 insider transactions, with AI-powered summaries of key sections.
When did CNR file its most recent 10-K annual report?
Core Natural Resources, Inc. (CNR) filed its most recent 10-K annual report on February 17, 2026. The 10-K includes audited financial statements, business overview, risk factors, and management discussion, all available on SignalX with AI-generated summaries and XBRL financial data.
How do I view CNR 10-Q quarterly reports?
Core Natural Resources, Inc. (CNR)'s most recent 10-Q quarterly report was filed on November 6, 2025. SignalX displays every CNR 10-Q with AI-generated summaries of the MD&A (Management Discussion & Analysis) and Risk Factors sections, plus links to the original SEC EDGAR document.
What 8-K current reports has CNR filed recently?
Core Natural Resources, Inc. (CNR)'s most recent 8-K was filed on April 30, 2026. 8-K filings disclose material corporate events such as earnings releases, executive changes, mergers, and other significant developments. SignalX surfaces each 8-K with item-level summaries so you can quickly see what happened.
Where can I find CNR insider trading activity (Form 4)?
SignalX aggregates every CNR Form 4 insider transaction from SEC EDGAR. Form 4 reports show when officers, directors, and 10% shareholders buy or sell company stock, with transaction code, share count, and price per share.
How often does CNR file with the SEC?
Core Natural Resources, Inc. (CNR) files a 10-K annual report once per year (typically within 60 days of fiscal year-end) and 10-Q quarterly reports three times per year. 8-K current reports are filed as needed when material events occur, and Form 4 insider transaction reports are due within two business days of a trade. SignalX monitors SEC EDGAR daily to surface every new CNR filing with AI-powered analysis.
What is the difference between 10-K, 10-Q, and 8-K SEC filings?
A 10-K is a comprehensive annual report with audited financials, business overview, and risk factors. A 10-Q is a shorter quarterly report with unaudited financials and management discussion. An 8-K is a current report filed when a material event occurs — such as earnings releases, executive changes, acquisitions, or other significant developments. SignalX provides AI-generated summaries for all three filing types for Core Natural Resources, Inc. (CNR).
What is CNR's SEC CIK number?
Core Natural Resources, Inc. (CNR)'s SEC CIK (Central Index Key) number is 1710366. The CIK is a unique identifier assigned by the SEC to every filing entity. You can use CIK 1710366 to look up all CNR filings on SEC EDGAR, or browse them here on SignalX with AI-powered analysis.
Where can I find CNR return on equity (ROE) and financial data?
SignalX extracts XBRL financial data from Core Natural Resources, Inc. (CNR) 10-K annual filings, including revenue, net income, gross profit, operating income, EPS, total assets, stockholders' equity, and operating cash flow. Return on equity (ROE) can be derived from net income divided by stockholders' equity. Multi-year financial trends are displayed in the Financial Summary table above.
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