BUTTE, Mont. & SIOUX FALLS, S.D.–(BUSINESS WIRE)–NorthWestern Energy Group, Inc. d/b/a NorthWestern Energy (Nasdaq: NWE) reported financial results for the year ended December 31, 2025. Net income for the period was $181.1 million, or $2.94 per diluted share, as compared with net income of $224.1 million, or $3.65 per diluted share, for the same period in 2024. This decrease was primarily due to higher operating expenses, including a non-cash charge for the regulatory disallowance of certain