HALLADOR ENERGY CO — 8-K Filings
155 8-K filings on record
This page lists all 8-K filings submitted to the SEC by HALLADOR ENERGY CO (HNRG), sorted by most recent first. Each row links to the full filing on EdgarLookup. HALLADOR ENERGY CO has filed 155 8-K documents with the SEC since 1995. To view all SEC filings by HALLADOR ENERGY CO, see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
10KSB
10KSB/A
10KSB40
10QSB
10QSB/A
144
3
3/A
4
4/A
424B5
5
8-A12B
8-K
8-K/A
CERTNAS
CORRESP
D
DEF 14A
DEF 14C
DEFA14A
EFFECT
NT 10-K
NT 10-Q
PRE 14A
S-3
S-3/A
S-3ASR
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 8-K | 8-K | 0001104659-26-036234 | Mar 27, 2026 | Mar 25, 2026 |
| 8-K | 8-K | 0001104659-26-027176 | Mar 12, 2026 | — |
| 8-K | 8-K | 0001104659-26-025949 | Mar 10, 2026 | Mar 5, 2026 |
| 8-K | 8-K | 0001104659-26-025346 | Mar 9, 2026 | Mar 6, 2026 |
| 8-K | FORM 8-K | 0001104659-26-004150 | Jan 15, 2026 | Jan 13, 2026 |
| 8-K | 8-K | 0001104659-26-001098 | Jan 6, 2026 | Dec 30, 2025 |
| 8-K | 8-K | 0001104659-25-118446 | Dec 4, 2025 | Dec 1, 2025 |
| 8-K | 8-K | 0001104659-25-109272 | Nov 10, 2025 | — |
| 8-K | 8-K | 0001558370-25-011065 | Aug 11, 2025 | — |
| 8-K | 8-K | 0001558370-25-008383 | Jun 4, 2025 | — |
| 8-K | 8-K | 0001558370-25-008332 | Jun 2, 2025 | May 29, 2025 |
| 8-K | 8-K | 0001558370-25-008111 | May 22, 2025 | May 19, 2025 |
| 8-K | 8-K | 0001558370-25-007392 | May 12, 2025 | — |
| 8-K | 8-K | 0001558370-25-003147 | Mar 17, 2025 | — |
| 8-K | 8-K | 0001558370-25-000046 | Jan 7, 2025 | Jan 2, 2025 |
| 8-K | 8-K | 0001558370-24-015342 | Nov 12, 2024 | — |
| 8-K | FORM 8-K | 0001437749-24-030649 | Oct 3, 2024 | Sep 27, 2024 |
| 8-K | FORM 8-K | 0001437749-24-024963 | Aug 7, 2024 | Aug 6, 2024 |
| 8-K | FORM 8-K | 0001437749-24-022186 | Jul 3, 2024 | Jun 28, 2024 |
| 8-K | FORM 8-K | 0001437749-24-018969 | Jun 3, 2024 | May 30, 2024 |
| 8-K | FORM 8-K | 0001437749-24-014892 | May 7, 2024 | May 6, 2024 |
| 8-K | FORM 8-K | 0001437749-24-009872 | Mar 28, 2024 | — |
| 8-K | FORM 8-K | 0001437749-24-009136 | Mar 25, 2024 | — |
| 8-K | FORM 8-K | 0001437749-24-007696 | Mar 14, 2024 | Mar 13, 2024 |
| 8-K | FORM 8-K | 0001437749-24-005288 | Feb 23, 2024 | — |
| 8-K | FORM 8-K | 0001104659-23-126645 | Dec 18, 2023 | — |
| 8-K | FORM 8-K | 0001437749-23-030459 | Nov 7, 2023 | Nov 6, 2023 |
| 8-K | FORM 8-K | 0001437749-23-025496 | Sep 8, 2023 | Sep 5, 2023 |
| 8-K | FORM 8-K | 0001437749-23-022382 | Aug 8, 2023 | Aug 7, 2023 |
| 8-K | FORM 8-K | 0001437749-23-021713 | Aug 3, 2023 | — |
| 8-K | FORM 8-K | 0001104659-23-082387 | Jul 19, 2023 | — |
| 8-K | FORM 8-K | 0001437749-23-016394 | Jun 1, 2023 | — |
| 8-K | FORM 8-K | 0001437749-23-013093 | May 9, 2023 | May 8, 2023 |
| 8-K | FORM 8-K | 0001437749-23-006948 | Mar 17, 2023 | Mar 16, 2023 |
| 8-K | FORM 8-K | 0001437749-22-027389 | Nov 15, 2022 | Nov 14, 2022 |
| 8-K | FORM 8-K | 0001437749-22-024532 | Oct 21, 2022 | — |
| 8-K | FORM 8-K | 0001437749-22-023586 | Oct 4, 2022 | Sep 28, 2022 |
| 8-K | FORM 8-K | 0001437749-22-023470 | Oct 3, 2022 | Sep 27, 2022 |
| 8-K | FORM 8-K | 0001437749-22-020619 | Aug 16, 2022 | Aug 15, 2022 |
| 8-K | FORM 8-K | 0001437749-22-020174 | Aug 11, 2022 | Aug 5, 2022 |
| 8-K | FORM 8-K | 0001437749-22-018939 | Aug 4, 2022 | Jul 29, 2022 |
| 8-K | FORM 8-K | 0001437749-22-016837 | Jul 8, 2022 | Jul 7, 2022 |
| 8-K | FORM 8-K | 0001437749-22-015032 | Jun 15, 2022 | Jun 9, 2022 |
| 8-K | FORM 8-K | 0001437749-22-011375 | May 6, 2022 | May 2, 2022 |
| 8-K | FORM 8-K | 0001437749-22-007451 | Mar 29, 2022 | Mar 28, 2022 |
| 8-K | FORM 8-K | 0001437749-22-003781 | Feb 18, 2022 | Feb 14, 2022 |
| 8-K | FORM 8-K | 0001437749-21-025735 | Nov 9, 2021 | Nov 8, 2021 |
| 8-K | FORM 8-K | 0001437749-21-019214 | Aug 10, 2021 | Aug 9, 2021 |
| 8-K | FORM 8-K | 0001437749-21-017903 | Jul 29, 2021 | Jul 23, 2021 |
| 8-K | FORM 8-K | 0001437749-21-014102 | Jun 3, 2021 | Jun 1, 2021 |