Hallador Energy Co SEC filings HNRG

Hallador Energy Co has 881 filings in SEC EDGAR's recent list, going back to May 12, 1995. Its latest annual report, Form 10-K, was filed on Mar 12, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 10, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 8, 2026 (material agreement, new debt, regulation fd disclosure). The company's fiscal year ends on December 31.

Form Description Filed Period
10-K Annual report Mar 12, 2026 Dec 31, 2025
10-K Annual report Mar 17, 2025 Dec 31, 2024
10-K Annual report Mar 14, 2024 Dec 31, 2023
10-K/A Amended annual report Nov 1, 2023 Dec 31, 2022
10-K Annual report Mar 16, 2023 Dec 31, 2022
10-K Annual report Mar 28, 2022 Dec 31, 2021
10-K Annual report Mar 9, 2021 Dec 31, 2020
10-K/A Amended annual report Jul 10, 2020 Dec 31, 2019
10-K/A Amended annual report Jun 12, 2020 Dec 31, 2019
10-K Annual report Mar 9, 2020 Dec 31, 2019
10-K Annual report Mar 11, 2019 Dec 31, 2018
10-K Annual report Mar 13, 2018 Dec 31, 2017
10-K Annual report Mar 10, 2017 Dec 31, 2016
10-K Annual report Mar 11, 2016 Dec 31, 2015
10-K Annual report Mar 6, 2015 Dec 31, 2014
10-K Annual report Mar 7, 2014 Dec 31, 2013
10-K Annual report Mar 7, 2013 Dec 31, 2012
10-K/A Amended annual report Mar 5, 2012 Dec 31, 2011
10-K Annual report Mar 2, 2012 Dec 31, 2011
10-K Annual report Mar 4, 2011 Dec 31, 2010
10-K Annual report Mar 5, 2010 Dec 31, 2009
10-K/A Amended annual report Dec 16, 2009 Dec 31, 2008
10-K Annual report Mar 26, 2009 Dec 31, 2008
10-K Annual report Apr 15, 2005 Dec 31, 2004

Showing 24 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

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Company profile

Industry
Electric Services (SIC 4911)
Listed as
HNRG (Nasdaq)
Fiscal year ends
December 31
Incorporated in
CO
Headquarters
Terre Haute, IN
SEC filer status
Accelerated filer
SEC CIK
788965
Former names
HALLADOR PETROLEUM CO (until Dec 21, 2009)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.