BKH SEC Filings: 8-K, 10-Q, S-3 & 424B – Black Hills

Financials

TYPE

HEADLINE

FILED AT

10-Q

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

Nov 5, 2026

10-Q

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

Aug 6, 2026

11-K

Form 11-K - Annual report of employee stock purchase, savings and similar plans

Jun 18, 2026

10-Q

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

May 7, 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)]

Nov 6, 2025

News

TYPE

HEADLINE

FILED AT

8-K

Black Hills Corporation Announces Third Quarter 2026 Financial Results

Nov 4, 2026

8-K

Black Hills Corp. to Rename Bright Horizon Energy Corporation with Ticker "HZN" Upon Merger Completion with NorthWestern Energy

Oct 22, 2026

8-K

Black Hills Corp. Executes Definitive Agreements to Serve Google’s Planned Data Center in Cheyenne, Wyoming

Oct 6, 2026

8-K

NorthWestern Energy Group Reports Q2 2026 Financial Results

Aug 17, 2026

8-K

Black Hills Corporation Announces Second Quarter 2026 Financial Results

Aug 5, 2026

8-K

NorthWestern Energy Group Reports Q1 2026 Financial Results and Provides Update on Pending Merger with Black Hills Corporation

May 15, 2026

Prospectus

TYPE

HEADLINE

FILED AT

424B5

May 2026 ATM | Offering amount: $183,376,179 | Bank: BofA Securities, Inc.; BMO Capital Markets Corp.; Mizuho Securities USA LLC; MUFG Securities Americas Inc.; RBC Capital Markets, LLC

May 19, 2026

424B3

Form 424B3 - Prospectus [Rule 424(b)(3)]

Feb 6, 2026

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

Nov 7, 2025

424B2

Form 424B2 - Prospectus [Rule 424(b)(2)]

Sep 26, 2025

Registrations

TYPE

HEADLINE

FILED AT

S-3ASR

May 2026 SHELF

May 19, 2026

S-4

Form S-4 - Registration of securities, business combinations

Jan 30, 2026

DRS

Form DRS - Draft Registration Statement

Oct 30, 2025

FWP

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Sep 25, 2025

FWP

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

May 13, 2024

FWP

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Sep 6, 2023

Proxies

TYPE

HEADLINE

FILED AT

DEF 14A