Form 8-K - Current report:
SEC Accession No. 0001993004-26-000038
Filing Date
2026-05-27
Accepted
2026-05-27 07:05:31
Documents
65
Period of Report
2026-05-27
Items
Item 7.01: Regulation FD Disclosure
Item 9.01: Financial Statements and Exhibits

Document Format Files

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Mailing Address 3010 WEST 69TH STREET SIOUX FALLS SD 57108
Business Address 3010 WEST 69TH STREET SIOUX FALLS SD 57108 605-978-2900
NorthWestern Energy Group, Inc. (Filer) CIK: 0001993004 (see all company filings)

EIN.: 932020320 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 000-56598 | Film No.: 261022143
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)