NorthWestern Energy Group, Inc.

For the period ended Aug 19, 2025. Filed Aug 19, 2025.

About this filing

A notice of a major event between regular reports, such as results, a deal or a change of executives. It is often the first formal record of the news.

Aug 19, 2025 · Filed Aug 19, 2025

NWE$82.73+0.9%Stored close · as of Nov 6, 2026

Opening this filing…