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. filings document the company's coal operating results, mine-safety disclosures, governance votes and Regulation FD communications. Form 8-K reports include quarterly earnings releases, investor presentations, updates on longwall operations at Leer South and West Elk, and mine-safety events reported under the Federal Mine Safety and Health Act.
Proxy and annual meeting materials cover director elections, auditor ratification, executive compensation votes, common-stock voting matters and related governance disclosures. The filings also provide formal records of capital-structure information, operating and financial results, and material events affecting the company's metallurgical and thermal coal operations.
Richard A. Navarre, a director of Core Natural Resources, Inc. (CNR), reported a sale of common stock on 09/25/2025. The filing shows 5,000 shares were sold at $82.20 per share to cover tax liabilities arising from the vesting of previously granted restricted stock awards tied to the August 20, 2024 merger agreement. After the sale, the reporting person beneficially owned 21,830 shares, of which 4,576 shares remain unvested restricted stock units. The Form 4 was signed by an attorney-in-fact on 09/26/2025.
Core Natural Resources, Inc. (CNR) reported a Rule 144 notice for the proposed sale of 5,000 common shares by a person whose shares vested under a registered plan on 01/13/2025. The shares are held at Morgan Stanley Smith Barney LLC and the seller plans an approximate sale date of 09/25/2025 on the NYSE. The filing discloses an aggregate market value of $410,975.50 for the shares and states payment for the vested shares was for services rendered. No other sales in the prior three months were reported.
Core Natural Resources director Patrick A. Kriegshauser reported a transaction on 09/17/2025 showing the sale of 3,043 shares of the company's common stock at $77.07 per share. The sale was executed to cover the reporting person's tax liability arising from the vesting of previously granted restricted stock awards tied to the Agreement and Plan of Merger dated August 20, 2024. After the sale, the filing shows the reporting person beneficially owns 23,348 shares, of which 3,348 remain unvested restricted stock units. The Form 4 was signed on 09/18/2025 by an attorney-in-fact.
Core Natural Resources director Patrick A. Kriegshauser reported a transaction on 09/17/2025 showing the sale of 3,043 shares of the company's common stock at $77.07 per share. The sale was executed to cover the reporting person's tax liability arising from the vesting of previously granted restricted stock awards tied to the Agreement and Plan of Merger dated August 20, 2024. After the sale, the filing shows the reporting person beneficially owns 23,348 shares, of which 3,348 remain unvested restricted stock units. The Form 4 was signed on 09/18/2025 by an attorney-in-fact.
Core Natural Resources director Patrick A. Kriegshauser reported a transaction on 09/17/2025 showing the sale of 3,043 shares of the company's common stock at $77.07 per share. The sale was executed to cover the reporting person's tax liability arising from the vesting of previously granted restricted stock awards tied to the Agreement and Plan of Merger dated August 20, 2024. After the sale, the filing shows the reporting person beneficially owns 23,348 shares, of which 3,348 remain unvested restricted stock units. The Form 4 was signed on 09/18/2025 by an attorney-in-fact.
Core Natural Resources, Inc. (CNR) insider submitted a Form 144 notifying a proposed sale of 3,043 common shares through Morgan Stanley Smith Barney, with an aggregate market value of $234,524.01. The shares represent approximately 0.0059% of the 51,471,519 shares outstanding and are scheduled for sale on 09/17/2025 on the NYSE.
The shares were acquired via restricted stock vesting: 1,651 shares on 01/13/2025 and 1,392 shares on 02/09/2024. The filer reports no other sales in the past three months and certifies no undisclosed material adverse information.
Core Natural Resources, Inc. (CNR) insider submitted a Form 144 notifying a proposed sale of 3,043 common shares through Morgan Stanley Smith Barney, with an aggregate market value of $234,524.01. The shares represent approximately 0.0059% of the 51,471,519 shares outstanding and are scheduled for sale on 09/17/2025 on the NYSE.
The shares were acquired via restricted stock vesting: 1,651 shares on 01/13/2025 and 1,392 shares on 02/09/2024. The filer reports no other sales in the past three months and certifies no undisclosed material adverse information.