Knife River Corporation

8-K Director or officer change; Shareholder vote results May 21, 2026 8-K Entered a material agreement; Took on a direct financial obligation May 18, 2026 10-Q Quarter ended 2026-03-31 May 5, 2026 8-K Results of operations (earnings release); Regulation FD disclosure May 5, 2026 10-K Fiscal year ended 2025-12-31 Feb 20, 2026 8-K Results of operations (earnings release); Regulation FD disclosure Feb 17, 2026 10-Q Quarter ended 2025-09-30 Nov 5, 2025 8-K Results of operations (earnings release); Regulation FD disclosure Nov 4, 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 Modified rights of security holders; Amended charter or bylaws; Shareholder vote results May 28, 2025 10-Q Quarter ended 2025-03-31 May 6, 2025 8-K Results of operations (earnings release); Regulation FD disclosure May 6, 2025 8-K Other events Mar 28, 2025 8-K Entered a material agreement; Took on a direct financial obligation; Other events Mar 10, 2025 10-K Fiscal year ended 2024-12-31 Feb 21, 2025 8-K Results of operations (earnings release); Regulation FD disclosure Feb 13, 2025 8-K Director or officer change Jan 17, 2025 8-K Entered a material agreement Dec 26, 2024 10-Q Quarter ended 2024-09-30 Nov 4, 2024 8-K Results of operations (earnings release); Regulation FD disclosure Nov 4, 2024 8-K Director or officer change Aug 21, 2024 10-Q Quarter ended 2024-06-30 Aug 6, 2024 8-K Results of operations (earnings release); Regulation FD disclosure Aug 6, 2024 8-K Director or officer change; Regulation FD disclosure Jun 27, 2024 8-K Shareholder vote results May 17, 2024 10-Q Quarter ended 2024-03-31 May 7, 2024 8-K Results of operations (earnings release); Regulation FD disclosure May 7, 2024 10-K Fiscal year ended 2023-12-31 Feb 27, 2024 8-K Results of operations (earnings release); Regulation FD disclosure Feb 15, 2024 10-Q Quarter ended 2023-09-30 Nov 6, 2023 8-K Results of operations (earnings release); Regulation FD disclosure Nov 6, 2023 10-Q Quarter ended 2023-06-30 Aug 8, 2023 8-K Results of operations (earnings release); Regulation FD disclosure Aug 8, 2023 8-K Entered a material agreement; Took on a direct financial obligation; Modified rights of security holders; Change in control; Director or officer change; Amended charter or bylaws; Item 5.05; Regulation FD disclosure; Other events Jun 1, 2023 8-K Regulation FD disclosure May 18, 2023 10-Q Quarter ended 2023-03-31 May 16, 2023 8-K Regulation FD disclosure May 12, 2023 SCHEDULE 13G Jul 31, 2026 4 Jul 1, 2026