Core Natural Resources, Inc.

8-K Regulation FD disclosure Jun 4, 2026 8-K Item 1.04 May 19, 2026 10-Q Quarter ended 2026-03-31 May 7, 2026 8-K Results of operations (earnings release); Regulation FD disclosure May 7, 2026 8-K Item 1.04 May 4, 2026 8-K Shareholder vote results; Regulation FD disclosure Apr 30, 2026 10-K/A Fiscal year ended 2025-12-31 Feb 27, 2026 10-K Fiscal year ended 2025-12-31 Feb 17, 2026 8-K Results of operations (earnings release); Regulation FD disclosure Feb 12, 2026 8-K Item 1.04 Jan 12, 2026 8-K Regulation FD disclosure Dec 18, 2025 10-Q Quarter ended 2025-09-30 Nov 6, 2025 8-K Results of operations (earnings release); Regulation FD disclosure Nov 6, 2025 8-K Director or officer change; Regulation FD disclosure Oct 8, 2025 10-Q Quarter ended 2025-06-30 Aug 5, 2025 8-K Results of operations (earnings release); Regulation FD disclosure Aug 5, 2025 8-K Entered a material agreement; Terminated a material agreement; Took on a direct financial obligation Jul 31, 2025 8-K Regulation FD disclosure Jun 30, 2025 10-Q Quarter ended 2025-03-31 May 8, 2025 8-K Results of operations (earnings release); Regulation FD disclosure May 8, 2025 8-K Shareholder vote results Apr 30, 2025 8-K Regulation FD disclosure; Other events Mar 28, 2025 8-K Regulation FD disclosure Mar 24, 2025 8-K Other events Feb 20, 2025 10-K Fiscal year ended 2024-12-31 Feb 20, 2025 8-K Results of operations (earnings release); Regulation FD disclosure Feb 20, 2025 8-K/A Feb 18, 2025 8-K Regulation FD disclosure Jan 16, 2025 8-K Entered a material agreement; Completed an acquisition or disposition; Took on a direct financial obligation; Modified rights of security holders; Director or officer change; Amended charter or bylaws; Regulation FD disclosure; Other events Jan 15, 2025 8-K Shareholder vote results Jan 10, 2025 8-K Other events Jan 3, 2025 8-K Director or officer change Dec 6, 2024 8-K Director or officer change Nov 12, 2024 10-Q Quarter ended 2024-09-30 Nov 5, 2024 8-K Results of operations (earnings release); Regulation FD disclosure Nov 5, 2024 8-K Other events Oct 15, 2024 8-K Entered a material agreement; Director or officer change; Other events Aug 21, 2024 10-Q Quarter ended 2024-06-30 Aug 8, 2024 8-K Results of operations (earnings release); Regulation FD disclosure Aug 8, 2024 10-Q Quarter ended 2024-03-31 May 7, 2024