BUTTE, Mont. & SIOUX FALLS, S.D.--(BUSINESS WIRE)--NorthWestern Energy Group, Inc. d/b/a NorthWestern Energy (Nasdaq: NWE) reported financial results for the Third Quarter of 2025. Net income for the period was $38.2 million, or$0.62 per diluted share, as compared with net income of $46.8 million, or$0.76 per diluted share, for the same period in 2024. This decrease was primarily due to higher operating expenses, including merger-related costs and depreciation, higher interest expense, and a. ...