Northwestern Energy Group Inc NWE · SEC Filings

1.7K

NorthWestern Corporation, which conducts business under the name NorthWestern Energy, supplies elect...

Price84.1

Market Cap5.17 B

Float61.13 M

CountryUS

SectorUtilities

ExchangeNASDAQ

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Financials

TYPE

HEADLINE

FILED AT

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Nov 4, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Jul 29, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Apr 29, 2026

10-K

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Feb 11, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Oct 29, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Jul 30, 2025

News

TYPE

HEADLINE

FILED AT

8-K

NorthWestern Energy Group Highlights Financial Strategy and Merger Progress with Black Hills at EEI Conference

Nov 6, 2026

8-K

NorthWestern Energy Reports Third Quarter 2026 Financial Results and Provides Merger and Operational Updates

Nov 5, 2026

8-K

NorthWestern Energy Presents Barclays Energy-Power Conference Overview and Merger Updates with Black Hills

Sep 9, 2026

8-K

NorthWestern Energy Reports Second Quarter 2026 Financial Results and Provides Merger Update

Jul 30, 2026

8-K

NorthWestern Energy Group, Inc. Subsidiary Issues $150 Million in First Mortgage Bonds

Jun 22, 2026

8-K

NorthWestern Corporation Enters $225 Million Secured Term Loan Agreement

Jun 2, 2026

Prospectus

TYPE

HEADLINE

FILED AT

425

Form 425 - Prospectuses and communications, business combinations

Feb 6, 2026

425

Form 425 - Prospectuses and communications, business combinations

Jan 30, 2026

425

Form 425 - Prospectuses and communications, business combinations

Jan 22, 2026

425

Form 425 - Prospectuses and communications, business combinations

Dec 29, 2025

425

Form 425 - Prospectuses and communications, business combinations

Dec 29, 2025

425

Form 425 - Prospectuses and communications, business combinations

Dec 29, 2025

Registrations

TYPE

HEADLINE

FILED AT

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Oct 3, 2023

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Oct 3, 2023

S-3ASR

SHELF

Oct 2, 2023

S-3ASR

SHELF

Oct 2, 2023

Proxies

TYPE

HEADLINE

FILED AT

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Mar 12, 2026

DEF 14A

Form DEF 14A - Other definitive proxy statements

Mar 12, 2026

DEFM14A

Form DEFM14A - Definitive proxy statement relating to merger or acquisition

Feb 6, 2026

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Mar 12, 2025

DEF 14A

Form DEF 14A - Other definitive proxy statements

Mar 12, 2025

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Mar 6, 2024

Ownerships

TYPE

HEADLINE

FILED AT

4

HORSFALL JAN ROBERT (Reporting)

Oct 5, 2026

4

Yingling Jeffrey W. (Reporting)

Oct 5, 2026

4

Edwards Sherina M. (Reporting)

Oct 5, 2026

4

Goodin David L (Reporting)

Oct 5, 2026

4

Ide Britt E (Reporting)

Oct 5, 2026

4

Larson Kent T (Reporting)

Oct 5, 2026

Other

TYPE

HEADLINE

FILED AT