# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000799233-22-000006
Filing Date
2022-02-25
Accepted
2022-02-25 16:54:08
Documents
74
Period of Report
2021-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | htld-20211231.htm iXBRL | 10-K | 1510681
2 | EX-21.1 | exhibit212021q4.htm | EX-21.1 | 6325
3 | EX-23.1 | exhibit231consentofindepen.htm | EX-23.1 | 2187
4 | EX-31.1 | exhibit3112021q4.htm | EX-31.1 | 14381
5 | EX-31.2 | exhibit3122021q4.htm | EX-31.2 | 14480
6 | EX-32.1 | exhibit3212021q4.htm | EX-32.1 | 6662
7 | EX-32.2 | exhibit3222021q4.htm | EX-32.2 | 7079
| Complete submission text file | 0000799233-22-000006.txt |  | 6335920

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
8 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | htld-20211231.xsd | EX-101.SCH | 50992
9 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | htld-20211231_cal.xml | EX-101.CAL | 67634
10 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | htld-20211231_def.xml | EX-101.DEF | 193040
11 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | htld-20211231_lab.xml | EX-101.LAB | 573276
12 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | htld-20211231_pre.xml | EX-101.PRE | 353660
68 | EXTRACTED XBRL INSTANCE DOCUMENT | htld-20211231_htm.xml | XML | 917856

Mailing Address 901 HEARTLAND WAY NORTH LIBERTY IA 52317
Business Address 901 HEARTLAND WAY NORTH LIBERTY IA 52317 3196457060
HEARTLAND EXPRESS INC (Filer) CIK: 0000799233 (see all company filings)

EIN.: 930926999 | State of Incorp.: NV | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 000-15087 | Film No.: 22681356
SIC: 4213 Trucking (No Local)