BUTTE, Mont. & SIOUX FALLS, S.D.–(BUSINESS WIRE)–NorthWestern Energy Group, Inc. d/b/a NorthWestern Energy (Nasdaq: NWE) reported financial results for the First Quarter of 2026. Net income for the period was $63.5 million, or $1.03 per diluted share, as compared with net income of $76.9 million, or $1.25 per diluted share, for the same period in 2025. This decrease was primarily due to retail volumes, operating, administrative, and general costs, including merger-related costs and costs asso