Hallador Energy CompanySEC Filings
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All SEC filings by Hallador Energy Company (HNRG) — annual and quarterly reports, current reports, registrations, proxies and ownership forms, updated in real time.
Financials
| 10-Q | Quarterly report | View Diff | Aug 10, 2026 | |
| 10-Q | Quarterly report | View Diff | May 6, 2026 | |
| 10-K | Annual report | View Diff | Mar 12, 2026 | |
| 10-Q | Quarterly report | View Diff | Nov 10, 2025 | |
| 10-Q | Quarterly report | View Diff | Aug 11, 2025 | |
| 10-Q | Quarterly report | View Diff | May 12, 2025 | |
| 10-K | Annual report | View Diff | Mar 17, 2025 | |
| 10-Q | Quarterly report | View Diff | Nov 12, 2024 | |
| 10-Q | Quarterly report | View Diff | Aug 7, 2024 | |
| 10-Q | Quarterly report | View Diff | May 7, 2024 |
Events
| 8-K | Current report | Aug 14, 2026 | ||
| 8-K | Hallador Reports Q2 2026 Results; Gas Project Budget Reduced Below $800 Million | Aug 10, 2026 | ||
| 8-K | Current report | Jun 26, 2026 | ||
| 8-K | Current report | Jun 11, 2026 | ||
| 8-K | Current report | Jun 5, 2026 | ||
| 8-K | Current report | Jun 3, 2026 | ||
| 8-K | Current report | Jun 2, 2026 | ||
| 8-K | Current report | May 29, 2026 | ||
| 8-K | Departure of Directors or Certain Officers | May 6, 2026 | ||
| 8-K | Hallador Energy Company Signs 12-Year Capacity Agreement for Over $1 Billion; Reports First Quarter 2026 Financial and Operating Results | May 6, 2026 |
Registrations and Prospectuses
| 424B5 | Prospectus supplement for primary offering | Jan 14, 2026 | ||
| 424B5 | Prospectus supplement for primary offering | Jan 13, 2026 | ||
| S-3ASR | Automatic shelf registration | Jan 13, 2026 | ||
| 424B5 | Prospectus supplement for primary offering | Dec 16, 2025 | ||
| S-8 | Registration of securities for employees | Jun 27, 2025 | ||
| 424B5 | Prospectus supplement for primary offering | Dec 18, 2023 | ||
| S-3/A | Shelf registration | View Diff | Nov 17, 2023 | |
| S-3/A | Shelf registration | View Diff | Nov 17, 2023 | |
| S-3 | Shelf registration | View Diff | Jul 19, 2023 | |
| S-3 | Shelf registration | Jul 19, 2023 |
Proxies
| DEFA14A | Additional proxy soliciting materials | Apr 15, 2026 | ||
| DEF 14A | Definitive proxy | View Diff | Apr 15, 2026 | |
| DEF 14A | Definitive proxy | View Diff | Apr 17, 2025 | |
| DEFA14A | Additional proxy soliciting materials | Apr 19, 2024 | ||
| DEF 14A | Definitive proxy | View Diff | Apr 19, 2024 | |
| DEFA14A | Additional proxy soliciting materials | Apr 21, 2023 | ||
| DEF 14A | Definitive proxy | View Diff | Apr 20, 2023 | |
| DEF 14A | Definitive proxy | View Diff | Apr 26, 2022 | |
| DEF 14A | Definitive proxy | View Diff | Apr 20, 2021 | |
| DEF 14A | Definitive proxy | View Diff | Aug 28, 2020 |
Other
| UPLOAD | Letter from SEC | Sep 8, 2025 | ||
| CORRESP | Correspondence with SEC | Aug 28, 2025 | ||
| CORRESP | Correspondence with SEC | Aug 12, 2025 | ||
| UPLOAD | Letter from SEC | Aug 6, 2025 | ||
| UPLOAD | Letter from SEC | Jun 12, 2024 | ||
| CORRESP | Correspondence with SEC | Jun 6, 2024 | ||
| CORRESP | Correspondence with SEC | May 15, 2024 | ||
| UPLOAD | Letter from SEC | May 9, 2024 | ||
| EFFECT | Notice of effectiveness | Nov 30, 2023 | ||
| EFFECT | Notice of effectiveness | Nov 30, 2023 |
Ownership
| SC 13G/A | Beneficial ownership report | Aug 11, 2026 | ||
| SC 13G | Beneficial ownership report | Jul 28, 2026 | ||
| 4 | Sugg Barbara Ann | Jul 15, 2026 | ||
| 4 | Hudson Daniel Timothy | Jul 10, 2026 | ||
| 4 | Hudson Daniel Timothy | Jun 30, 2026 | ||
| 4 | Telesz Todd E | Jun 25, 2026 | ||
| 4 | Hudson Daniel Timothy | Jun 25, 2026 | ||
| 3 | White Matthew Bradford | Jun 17, 2026 | ||
| 4 | Wesley Charles Ray Iv | Jun 17, 2026 | ||
| 4 | Lubar David J | Jun 1, 2026 |