Attached files
file | filename |
---|---|
EX-32.2 - EXHIBIT 32.2 - HEARTLAND EXPRESS INC | exhibit3222017q4.htm |
EX-32.1 - EXHIBIT 32.1 - HEARTLAND EXPRESS INC | exhibit3212017q4.htm |
EX-31.2 - EXHIBIT 31.2 - HEARTLAND EXPRESS INC | exhibit3122017q4.htm |
EX-31.1 - EXHIBIT 31.1 - HEARTLAND EXPRESS INC | exhibit3112017q4.htm |
10-K - 10-K - HEARTLAND EXPRESS INC | htld201710k.htm |