| 2026-08-10 | 10-Q | Form 10-Q for the quarter ended Jun 30 |
| 2026-08-05 | 8-K | Form 8-K, Item 2.02 results |
| 2026-07-29 | Press release | Heartland Express, Inc. Reports Net Income and Financial Results for the Second Quarter of 2026 |
| 2026-06-17 | 8-K | Form 8-K, Item 8.01 |
| 2026-05-19 | 8-K | Form 8-K, Item 5.02 |
| 2026-05-15 | 8-K | Form 8-K, Item 5.07 |
| 2026-05-11 | 10-Q | Form 10-Q for the quarter ended Mar 31 |
| 2026-04-27 | 8-K | Form 8-K, Item 2.02 results |
| 2026-04-23 | Press release | Press release · Q1 2026 · Apr 2026 |
| 2026-04-22 | 8-K | Form 8-K, Item 5.02 |
| 2026-04-02 | Proxy | Definitive proxy statement |
| 2026-03-31 | 8-K | Form 8-K, Item 5.02 |
| 2026-03-18 | 8-K | Form 8-K, Item 8.01 |
| 2026-03-13 | Press release | Press release · Mar 2026 |
| 2026-03-03 | 10-K | Annual report on Form 10-K, FY25 |
| 2026-02-09 | 8-K | Form 8-K, Item 2.02 results |
| 2026-02-03 | Press release | Press release · Q4 2025 · Feb 2026 |
| 2026-01-07 | 8-K | Form 8-K, Item 5.02 |
| 2025-12-19 | 8-K | Form 8-K, Item 8.01 |
| 2025-12-16 | Press release | Press release · Dec 2025 |
| 2025-12-09 | 8-K | Form 8-K, Item 8.01 |
| 2025-11-10 | 10-Q | Form 10-Q for the quarter ended Sep 30 |
| 2025-11-06 | 8-K | Form 8-K, Item 2.02 results |
| 2025-10-31 | Press release | Press release · Q3 2025 · Oct 2025 |
| 2025-10-30 | 8-K | Form 8-K, Item 5.02 |
| 2025-09-16 | 8-K | Form 8-K, Item 8.01 |
| 2025-09-12 | Press release | Press release · Sep 2025 |
| 2025-08-08 | 10-Q | Form 10-Q for the quarter ended Jun 30 |
| 2025-07-29 | 8-K | Form 8-K, Item 2.02 results |
| 2025-07-24 | Press release | Press release · Q2 2025 · Jul 2025 |
| 2025-06-17 | 8-K | Form 8-K, Item 8.01 |
| 2025-06-13 | Press release | Press release · Jun 2025 |
| 2025-05-12 | 10-Q | Form 10-Q for the quarter ended Mar 31 |
| 2025-05-09 | 8-K | Form 8-K, Item 5.07 |
| 2025-05-02 | 8-K | Form 8-K, Item 2.02 results |
| 2025-04-30 | Press release | Press release · Q1 2025 · Apr 2025 |
| 2025-03-28 | Proxy | Definitive proxy statement |
| 2025-03-18 | 8-K | Form 8-K, Item 8.01 |
| 2025-03-14 | Press release | Press release · Mar 2025 |
| 2025-03-05 | Press release | Press release · Mar 2025 |