NWE · Nasdaq · CIK 0001993004

NorthWestern Energy Group, Inc.

NorthWestern Energy Group, Inc.’s most recent SEC filing in our snapshot is a Form 4 filed on Oct 5, 2026. In fiscal 2025 (year ended Dec 31, 2025) it reported revenue of $1.6B and net income of $181.1M, according to its XBRL data on EDGAR. Its EDGAR record lists 61 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2025
$1.6B
Net income, FY2025
$181.1M
Form 4 filings on record, past 12 months
61

Company overview

Legal name (as filed)
NorthWestern Energy Group, Inc.
Ticker
NWE
SEC Central Index Key (CIK)
0001993004
Industry (SIC)
Electric & Other Services Combined (code 4931)
Business address
SIOUX FALLS, SD
State or country of incorporation
DE
Fiscal year ends
December 31
SEC filer category
Large accelerated filer
Position in SEC ticker list
#1370 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from NorthWestern Energy Group, Inc.’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in U.S. dollars; the fiscal year is named for the calendar year in which it ends.

Revenue
$1.4BFY2021$1.5BFY2022$1.4BFY2023$1.5BFY2024$1.6BFY2025
Net income
$186.8MFY2021$183.0MFY2022$194.1MFY2023$224.1MFY2024$181.1MFY2025
NWE annual results
ItemFY2021
ended Dec 31, 2021		FY2022
ended Dec 31, 2022		FY2023
ended Dec 31, 2023		FY2024
ended Dec 31, 2024		FY2025
ended Dec 31, 2025
Revenue$1.4B$1.5B$1.4B$1.5B$1.6B
Net income$186.8M$183.0M$194.1M$224.1M$181.1M
Diluted EPS$3.60$3.25$3.22$3.65$2.94
Total assets$6.8B$7.3B$7.6B$8.0B$8.5B
Cash and equivalents$2.8M$8.5M$9.2M$4.3M$8.8M

XBRL tags used: revenue = Revenues; netIncome = NetIncomeLoss; assets = Assets; eps = EarningsPerShareDiluted; cash = CashAndCashEquivalentsAtCarryingValue. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

NWE latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Feb 12, 202610-KAnnual report· period Dec 31, 2025Document · Index
Jul 30, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Sep 9, 20268-KRegulation FD disclosure· period Sep 9, 2026Document · Index
Mar 12, 2026DEF 14ADefinitive proxy statement· period Apr 30, 2026Document · Index

Recent SEC filings

The 40 newest documents filed by or about NorthWestern Energy Group, Inc., by form type:

4 ×248-K ×1010-Q ×2SCHEDULE 13G ×24/A ×1SCHEDULE 13G/A ×1
NWE recent filings
FiledFormWhat it isOriginal
Oct 5, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 1, 2026Document · Index
Oct 5, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 1, 2026Document · Index
Oct 5, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 1, 2026Document · Index
Oct 5, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 1, 2026Document · Index
Oct 5, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 1, 2026Document · Index
Oct 5, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 1, 2026Document · Index
Oct 5, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 1, 2026Document · Index
Oct 5, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 1, 2026Document · Index
Sep 9, 20268-KRegulation FD disclosure· period Sep 9, 2026Document · Index
Aug 6, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 6, 2026Document · Index
Aug 5, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 4, 2026Document · Index
Jul 30, 20268-KResults of operations; Regulation FD disclosure· period Jul 29, 2026Document · Index
Jul 30, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Jul 13, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 9, 2026Document · Index
Jul 13, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 9, 2026Document · Index
Jul 13, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 9, 2026Document · Index
Jul 13, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 9, 2026Document · Index
Jul 13, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 9, 2026Document · Index
Jul 13, 20264/AStatement of changes in beneficial ownership (insider trade)· period Jul 9, 2026Document · Index
Jul 13, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 6, 2026Document · Index
Jun 22, 20268-KMaterial agreement; New financial obligation· period Jun 15, 2026Document · Index
Jun 2, 20268-KMaterial agreement; New financial obligation· period May 27, 2026Document · Index
Jun 2, 20268-KRegulation FD disclosure· period Jun 2, 2026Document · Index
May 27, 20268-KRegulation FD disclosure· period May 27, 2026Document · Index
May 18, 20268-KRegulation FD disclosure· period May 18, 2026Document · Index
May 12, 20264Statement of changes in beneficial ownership (insider trade)· period May 11, 2026Document · Index
May 12, 20264Statement of changes in beneficial ownership (insider trade)· period May 11, 2026Document · Index
May 5, 20268-KShareholder vote results· period Apr 30, 2026Document · Index
Apr 30, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Apr 30, 20268-KResults of operations; Regulation FD disclosure· period Apr 29, 2026Document · Index
Apr 30, 202610-QQuarterly report· period Mar 31, 2026Document · Index
Apr 29, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Apr 7, 20264Statement of changes in beneficial ownership (insider trade)· period Apr 7, 2026Document · Index
Apr 7, 20264Statement of changes in beneficial ownership (insider trade)· period Apr 7, 2026Document · Index
Apr 7, 20264Statement of changes in beneficial ownership (insider trade)· period Apr 7, 2026Document · Index
Apr 7, 20264Statement of changes in beneficial ownership (insider trade)· period Apr 7, 2026Document · Index
Apr 7, 20264Statement of changes in beneficial ownership (insider trade)· period Apr 7, 2026Document · Index
Apr 7, 20264Statement of changes in beneficial ownership (insider trade)· period Apr 7, 2026Document · Index
Apr 3, 20268-KShareholder vote results; Other events· period Apr 2, 2026Document · Index
Mar 27, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index

Insider filing activity

61 Form 4 filings appear in NorthWestern Energy Group, Inc.’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

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Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0001993004 and XBRL company facts. NorthWestern Energy Group, Inc. on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.