Welcome to our dedicated page for Core Natural SEC filings (Ticker: CNR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Core Natural Resources, Inc. (NYSE: CNR) files a range of documents with the U.S. Securities and Exchange Commission that describe its coal operations, financial performance, risks, and corporate actions. As a registrant with common stock listed on the New York Stock Exchange, the company submits annual reports on Form 10-K, quarterly reports on Form 10-Q, and current reports on Form 8-K, along with exhibits and investor presentations.
In its 8-K filings, Core Natural Resources has reported quarterly results, leadership changes, financing arrangements, operational updates, and mine safety events. Examples include 8-Ks announcing second and third quarter 2025 financial results, an 8-K describing the appointment of a new chief executive officer and the related separation arrangements for the prior CEO, and an 8-K detailing a refinancing of tax-exempt bonds originally issued by its predecessor companies. Another 8-K outlines a receivables financing agreement and related sale and contribution agreements involving trade receivables.
Filings also address mine operations and safety. One 8-K reports an imminent danger order issued under section 107(a) of the Federal Mine Safety and Health Act at the Mountaineer II mine in West Virginia due to elevated methane levels in an isolated section, noting that mine personnel took actions to restore acceptable levels and that the order was terminated without injuries or illnesses. Other 8-Ks furnish press releases on efforts to resume longwall operations at the Leer South mine and the eventual resumption of those operations.
On this SEC filings page, users can review Core Natural Resources’ Forms 10-K and 10-Q for detailed financial statements, segment information for metallurgical, high calorific value thermal, and Powder River Basin coal operations, and risk factor discussions. They can also access 8-Ks covering earnings releases, financing transactions, governance changes, and mine safety disclosures. AI-powered summaries can help explain lengthy filings, highlight key figures and segment trends, and point out items such as capital return framework details, debt structure changes, and significant operational events described in the underlying documents.
John Rothka reported insider sales of Common Stock for CNR. The filing shows a sale of
Core Natural Resources, Inc. is holding its 2026 virtual annual meeting on April 30, 2026, asking stockholders to elect eight directors, ratify Ernst & Young LLP as auditor for 2026, and approve 2025 executive pay on an advisory basis.
Formed in January 2025 through a merger of equals between CONSOL Energy and Arch Resources, Core operates a large portfolio of longwall and surface coal mines and strategic export terminals. In 2025 it generated cash flow from operations of
The company adopted a capital return framework targeting roughly 75% of free cash flow, a new pay-for-performance executive compensation program with a mix of RSUs and PSUs, and strengthened governance with 83% independent directors, four fully independent committees, stock ownership guidelines, and policies such as clawbacks, anti-hedging, and insider trading controls.
Core Natural Resources, Inc. Chief Accounting Officer John Rothka reported an open-market sale of 3,800 shares of common stock at a weighted average price of $91.62 per share. After the sale, he directly holds 6,190 shares, including 1,314 unvested restricted stock units that continue to represent future equity-based compensation.
Core Natural Resources, Inc. director Richard A. Navarre reported an open-market sale of 6,000 shares of common stock at
Core Natural Resources, Inc. filed Amendment No. 1 to its Annual Report for the year ended December 31, 2025. The sole purpose is to amend Item 15 and Exhibit 96.1 by filing an updated Technical Report Summary for the Leer Complex in West Virginia.
The company explains that the original Technical Report Summary contained incorrect images for Figure 6.3-1 (Stratigraphic Column) and Figure 7.5-1 (Drillhole Collar Locations, Map View). The underlying text and conclusions of the report are unchanged, and no new financial statements are included. As of June 30, 2025, the aggregate value of common stock held by non-affiliates was approximately $3,514,239,816, and shares of common stock outstanding totaled 50,979,544 as of January 30, 2026.
Core Natural Resources, Inc. director Holly K. Koeppel filed an amended Form 4 to correct her reported direct ownership of common stock. A prior Form 4 contained immaterial clerical rounding errors, and the corrected total number of shares directly beneficially owned is now reported as 14,970.
Core Natural Resources, Inc. director Joseph P. Platt Jr. filed an amended insider report to correct a previously misstated share balance. The amendment explains that an earlier Form 4 contained immaterial clerical rounding errors in the total number of common shares directly beneficially owned.
The corrected figure shows that Platt directly owns 40,660 shares of common stock, par value $0.01 per share. The filing does not reflect a new purchase or sale of shares, but instead updates the reported ownership amount to the accurate total.
Core Natural Resources, Inc. director Richard A. Navarre filed an amended Form 4 to correct his reported shareholdings. The filing states that an earlier Form 4 contained immaterial clerical rounding errors and now shows that he directly and beneficially owns 24,034 shares of common stock.