Hallador Energy Co
HNRGNasdaqCIK 788965UtilitiesFiscal year ends Dec 31
Reports and events: 280 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-10-0812:59 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-26-065410 |
| 2026-09-1712:05 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-108429 |
| 2026-08-1420:35 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001104659-26-097263 |
| 2026-08-1021:20 ET | 10-Q | Quarterly reportPeriod 2026-06-30 | 0001104659-26-093468 |
| 2026-08-1021:00 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-093446 |
| 2026-06-2621:06 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0000788965-26-000006 |
| 2026-06-1121:28 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000788965-26-000004 |
| 2026-06-0520:23 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000788965-26-000002 |
| 2026-06-0320:30 ET | 8-K | 1.04 Item not in the standard list | 0001104659-26-070122 |
| 2026-06-0210:00 ET | 8-K | 1.01 Entry into a material agreement; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-069138 |
| 2026-05-2921:20 ET | 8-K | 5.07 Shareholder vote results | 0001104659-26-068374 |
| 2026-05-0621:21 ET | 10-Q | Quarterly reportPeriod 2026-03-31 | 0001104659-26-056375 |
| 2026-05-0621:10 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events | 0001104659-26-056354 |
| 2026-05-0621:00 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-056345 |
| 2026-04-1521:27 ET | DEF 14A | Proxy statementPeriod 2026-05-27 | 0001104659-26-043867 |
| 2026-04-1521:10 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001104659-26-043845 |
| 2026-03-2721:15 ET | 8-K | 1.04 Item not in the standard list; 9.01 Financial statements and exhibits | 0001104659-26-036234 |
| 2026-03-1221:27 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-027176 |
| 2026-03-1221:26 ET | 10-K | Annual reportPeriod 2025-12-31 | 0001104659-26-027174 |
| 2026-03-1021:27 ET | 8-K | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001104659-26-025949 |
| 2026-03-0921:25 ET | 8-K | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-025346 |
| 2026-02-2701:17 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001104659-26-021770 |
| 2026-01-1522:08 ET | 8-K | 1.02 Termination of a material agreement; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-004150 |
| 2026-01-0613:05 ET | 8-K | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-001098 |
| 2025-12-0421:00 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-25-118446 |
| 2025-11-1022:24 ET | 10-Q | Quarterly reportPeriod 2025-09-30 | 0001104659-25-109301 |
| 2025-11-1022:05 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-109272 |
| 2025-08-1121:25 ET | 10-Q | Quarterly reportPeriod 2025-06-30 | 0001558370-25-011085 |
| 2025-08-1120:47 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-25-011065 |
| 2025-06-0412:35 ET | 8-K | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001558370-25-008383 |
| 2025-06-0217:58 ET | 8-K | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001558370-25-008332 |
| 2025-05-2220:37 ET | 8-K | 8.01 Other events | 0001558370-25-008111 |
| 2025-05-1221:20 ET | 10-Q | Quarterly reportPeriod 2025-03-31 | 0001558370-25-007429 |
| 2025-05-1220:19 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-25-007392 |
| 2025-04-1718:30 ET | DEF 14A | Proxy statementPeriod 2025-05-29 | 0001558370-25-004951 |
| 2025-03-1721:29 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-25-003147 |
| 2025-03-1721:17 ET | 10-K | Annual reportPeriod 2024-12-31 | 0001558370-25-003141 |
| 2025-01-0714:40 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001558370-25-000046 |
| 2024-11-1222:20 ET | 10-Q | Quarterly reportPeriod 2024-09-30 | 0001558370-24-015355 |
| 2024-11-1221:55 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001558370-24-015342 |
| 2024-10-0321:26 ET | 8-K | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001437749-24-030649 |
| 2024-09-0321:24 ET | SC 13D/A | Ownership report, active investor, amended | 0001437749-24-028278 |
| 2024-08-0721:27 ET | 10-Q | Quarterly reportPeriod 2024-06-30 | 0001437749-24-025219 |
| 2024-08-0721:31 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001437749-24-024963 |
| 2024-07-2323:49 ET | SC 13D/A | Ownership report, active investor, amended | 0001104659-24-082010 |
| 2024-07-0320:31 ET | 8-K | 3.02 Unregistered sale of equity; 8.01 Other events | 0001437749-24-022186 |
| 2024-06-0313:32 ET | 8-K | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001437749-24-018969 |
| 2024-05-0721:23 ET | 10-Q | Quarterly reportPeriod 2024-03-31 | 0001437749-24-015139 |
| 2024-05-0700:40 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001437749-24-014892 |
| 2024-04-1919:51 ET | DEF 14A | Proxy statementPeriod 2024-05-30 | 0001437749-24-012550 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 14:56 ET. Listed shows no prices and gives no investment advice.