0000799233FALSE00007992332023-05-112023-05-11

Washington, D.C. 20549

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Date of Report (Date of earliest event reported):

May 11, 2023

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(Exact name of registrant as specified in its charter)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

On May 11, 2023, the Compensation Committee of the Board of Directors of Heartland Express, Inc. (the "Company") approved the following compensation increase to one of the Company's named executive officers. The increase was effective immediately.

On May 11, 2023, the Annual Meeting of Stockholders of Heartland Express, Inc. (the "Company") was held, at which meeting seven (7) directors were elected to serve as the Board of Directors until the 2024 Annual Meeting of Stockholders, the appointment of Grant Thornton, LLP as the Company's independent registered public accounting firm for 2023 was ratified, the compensation of named executive officers of the Company was approved in an advisory and non-binding vote and the one year frequency of future executive compensation votes was approved in an advisory and non-binding vote.

The voting tabulation on the election of directors was as follows:

The voting tabulation on the appointment of Grant Thornton LLP as the Company's independent registered public accounting firm for 2023 was as follows:

The voting tabulation on the non-binding advisory vote on named executive officer compensation was as follows:

The voting tabulation on the non-binding advisory vote on the frequency of future executive compensation votes was as follows:

Accordingly, the Company’s stockholders expressed a preference to hold future executive compensation votes each year. The Board of Directors considered the results of the non-binding advisory vote on the frequency of future executive compensation votes and determined that it would hold future executive compensation votes each year until the next stockholder non-binding advisory vote on the frequency of these votes.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on behalf by the undersigned thereunto duly authorized.