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BLACK HILLS CORP /SD/ — 10-K Filings

24 10-K filings on record

This page lists all 10-K filings submitted to the SEC by BLACK HILLS CORP /SD/ (BKH), sorted by most recent first. Each row links to the full filing on EdgarLookup. BLACK HILLS CORP /SD/ has filed 24 10-K documents with the SEC since 2016. To view all SEC filings by BLACK HILLS CORP /SD/, see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-K405 10-K405/A 10-Q 10-Q/A 11-K 144 25-NSE 3 305B2 35-CERT 4 4/A 424B2 424B3 424B4 424B5 424B7 425 5 8-A12B 8-K 8-K/A ARS CERTNYS CORRESP DEF 14A DEFA14A DEFR14A DRS EFFECT FWP POSASR PRE 14A RW S-1 S-1/A S-3 S-3/A S-3ASR S-4 S-4/A S-8 S-8 POS SC 13G SC 13G/A SCHEDULE 13G/A SE U-1 U-1/A U-3A-2 U-6B-2 U-9C-3 U5A U5A/A U5B UPLOAD
Form Description Accession Number Filed Period
10-K 10-K 0001193125-26-046028 Feb 11, 2026 Dec 31, 2025
10-K 10-K 0000950170-25-018647 Feb 12, 2025 Dec 31, 2024
10-K 10-K 0000950170-24-015090 Feb 14, 2024 Dec 31, 2023
10-K 10-K 0000950170-23-002759 Feb 14, 2023 Dec 31, 2022
10-K 10-K 0001130464-22-000004 Feb 15, 2022 Dec 31, 2021
10-K 10-K 0001130464-21-000007 Feb 26, 2021 Dec 31, 2020
10-K 10-K 0001130464-20-000006 Feb 14, 2020 Dec 31, 2019
10-K 10-K 0001130464-19-000012 Feb 19, 2019 Dec 31, 2018
10-K 10-K 0001130464-18-000014 Feb 26, 2018 Dec 31, 2017
10-K 10-K 0001130464-17-000010 Feb 27, 2017 Dec 31, 2016
10-K 10-K 0001130464-16-000176 Feb 25, 2016 Dec 31, 2015
10-K 10-K 0001130464-15-000083 Feb 25, 2015 Dec 31, 2014
10-K 10-K 0001130464-14-000056 Feb 26, 2014 Dec 31, 2013
10-K 10-K 0001130464-13-000071 Feb 25, 2013 Dec 31, 2012
10-K — 0001130464-12-000024 Feb 29, 2012 Dec 31, 2011
10-K — 0001130464-11-000027 Feb 25, 2011 Dec 31, 2010
10-K BHC FORM 10K DECEMBER 31, 2009 0001130464-10-000041 Feb 26, 2010 Dec 31, 2009
10-K FORM 10K FYE 2008 0001130464-09-000099 Mar 2, 2009 Dec 31, 2008
10-K — 0001130464-08-000105 Feb 29, 2008 Dec 31, 2007
10-K BHC FORM-K 2006 0001130464-07-000082 Mar 1, 2007 Dec 31, 2006
10-K BHC 2005 FORM 10-K 0001130464-06-000172 Mar 16, 2006 Dec 31, 2005
10-K FORM 10-K 2004 BLACK HILLS CORP 0001130464-05-000116 Mar 16, 2005 Dec 31, 2004
10-K BHC 2003 FORM 10-K 0001130464-04-000110 Mar 15, 2004 Dec 31, 2003
10-K BLACK HILLS CORP FORM 10-K 0001130464-03-000054 Mar 31, 2003 Dec 31, 2002