NorthWestern Energy Group, Inc.

8-K Results of operations (earnings release); Regulation FD disclosure Jul 30, 2026 10-Q Quarter ended 2026-06-30 Jul 30, 2026 8-K Entered a material agreement; Took on a direct financial obligation Jun 22, 2026 8-K Entered a material agreement; Took on a direct financial obligation Jun 2, 2026 8-K Regulation FD disclosure Jun 2, 2026 8-K Regulation FD disclosure May 27, 2026 8-K Regulation FD disclosure May 18, 2026 8-K Shareholder vote results May 5, 2026 8-K Results of operations (earnings release); Regulation FD disclosure Apr 30, 2026 10-Q Quarter ended 2026-03-31 Apr 30, 2026 8-K Shareholder vote results; Other events Apr 3, 2026 8-K Director or officer change Feb 17, 2026 8-K Results of operations (earnings release); Regulation FD disclosure Feb 12, 2026 10-K Fiscal year ended 2025-12-31 Feb 12, 2026 8-K Regulation FD disclosure; Other events Dec 9, 2025 8-K Entered a material agreement; Took on a direct financial obligation Nov 13, 2025 8-K Regulation FD disclosure Nov 10, 2025 8-K Director or officer change Oct 31, 2025 8-K Results of operations (earnings release); Regulation FD disclosure Oct 30, 2025 10-Q Quarter ended 2025-09-30 Oct 30, 2025 8-K Entered a material agreement; Took on a direct financial obligation Oct 3, 2025 8-K Regulation FD disclosure; Other events Sep 3, 2025 8-K Entered a material agreement; Director or officer change; Amended charter or bylaws; Regulation FD disclosure Aug 19, 2025 8-K Regulation FD disclosure Aug 19, 2025 8-K Results of operations (earnings release); Regulation FD disclosure Jul 31, 2025 10-Q Quarter ended 2025-06-30 Jul 31, 2025 8-K Regulation FD disclosure Jun 5, 2025 8-K Regulation FD disclosure May 28, 2025 8-K Regulation FD disclosure May 19, 2025 8-K Entered a material agreement; Took on a direct financial obligation May 7, 2025 8-K Shareholder vote results May 5, 2025 8-K Results of operations (earnings release); Regulation FD disclosure Apr 30, 2025 10-Q Quarter ended 2025-03-31 Apr 30, 2025 8-K Regulation FD disclosure Apr 10, 2025 8-K Entered a material agreement; Took on a direct financial obligation Mar 27, 2025 8-K Regulation FD disclosure Mar 25, 2025 8-K Results of operations (earnings release); Regulation FD disclosure Feb 13, 2025 10-K Fiscal year ended 2024-12-31 Feb 13, 2025 8-K Director or officer change Dec 19, 2024 8-K Director or officer change Nov 21, 2024