Sec Form 4 Filing - Ann S. Gerdin Revocable Trust @ HEARTLAND EXPRESS INC - 2025-05-06

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Ann S. Gerdin Revocable Trust 2. Issuer Name and Ticker or Trading Symbol HEARTLAND EXPRESS INC [ HTLD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) X __ Other (specify below) Co-Trustee of 10% Owner (Last) (First) (Middle) 901 HEARTLAND WAY 3. Date of Earliest Transaction (MM/DD/YY) 05/06/2025 (Street) NORTH LIBERTY, IA52317 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 05/06/2025 P 148,272 A $ 7.6037 ( 1 ) 1,600,100 I Trustee of Trust ( 2 ) Common Stock 05/07/2025 P 148,272 A $ 7.7045 ( 3 ) 1,046,856 I Trustee of Trust ( 4 ) Common Stock 05/08/2025 P 100,149 A $ 8.2253 ( 5 ) 1,700,249 I Trustee of Trust ( 2 ) Common Stock 8,813 I By Spouse ( 6 ) Common Stock 8,939,532 D ( 7 ) Common Stock 4,283,975 I Co-Trustee of Trust ( 8 ) Common Stock 38,424 I Trustee of Trusts ( 9 ) Common Stock 38,424 I Trustee of Trusts ( 10 ) Common Stock 5,003,805 I Co-Trustee of Trust ( 11 ) Common Stock 1,936,276 I Co-General Partner of Partnership ( 12 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Ann S. Gerdin Revocable Trust 901 HEARTLAND WAY NORTH LIBERTY, IA52317 X Co-Trustee of 10% Owner Janssen Angela K 901 HEARTLAND WAY NORTH LIBERTY, IA52317 Co-Trustee of 10% Owner Gerdin Ann S 901 HEARTLAND WAY NORTH LIBERTY, IA52317 X Durr Julie J 901 HEARTLAND WAY NORTH LIBERTY, IA52317 Co-Trustee of 10% Owner Signatures /s/Michael Gerdin, Co-Trustee of the Ann S. Gerdin Revocable Trust, by Chris Strain, pursuant to power of attorney previously filed 05/08/2025 Signature of Reporting Person Date /s/Angela K. Janssen, by Chris Strain, pursuant to power of attorney previously filed 05/08/2025 Signature of Reporting Person Date /s/Julie J. Durr, by Chris Strain, pursuant to power of attorney previously filed 05/08/2025 Signature of Reporting Person Date /s/ Ann S. Gerdin, by Chris Strain, pursuant to power of attorney previously filed 05/08/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The price reflects a weighted average purchase price for multiple transactions ranging from 7.5150 to 7.6700 per share, inclusive. The reporting person undertakes to provide upon request by the SEC staff, the issuer, or a stockholder of the issuer, full information regarding the number of shares purchased at each separate price. ( 2 )Angela Janssen is the trustee of the Angela K. Janssen Revocable Trust. ( 3 )The price reflects a weighted average purchase price for multiple transactions ranging from 7.6400 to 7.7500 per share, inclusive. The reporting person undertakes to provide upon request by the SEC staff, the issuer, or a stockholder of the issuer, full information regarding the number of shares purchased at each separate price. ( 4 )Julie Durr is the trustee of the Julie J. Durr Revocable Trust. ( 5 )The price reflects a weighted average purchase price for multiple transactions ranging from 7.9300 to 8.3500 per share, inclusive. The reporting person undertakes to provide upon request by the SEC staff, the issuer, or a stockholder of the issuer, full information regarding the number of shares purchased at each separate price. ( 6 )Mrs. Janssen's husband owns these shares. ( 7 )Mrs. Durr, Mrs. Janssen, and Mrs. Gerdin are among the co-trustees of the Ann S. Gerdin Revocable Trust. ( 8 )Mrs. Durr and Mrs. Janssen are among the co-trustees of the 2009 Gerdin Heartland Trust. As co-trustees, Mrs. Durr and Mrs. Janssen disclaim beneficial ownership with respect to this trust. ( 9 )Mrs. Janssen is the trustee of trusts created for the benefit of her children. ( 10 )Mrs. Durr is the trustee of trusts created for the benefit of her children. ( 11 )Mrs. Durr and Mrs. Janssen are among the co-trustees of the 2007 Gerdin Heartland Trust. As co-trustees, Mrs. Durr and Mrs. Janssen disclaim beneficial ownership with respect to this trust. ( 12 )The Ann S. Gerdin Revocable Trust, Mrs. Durr, and Mrs. Janssen are among the co-general partners of Gerdin Family Investments LP. Beneficial ownership is disclaimed except to the extent of each such reporting person's percentage ownership of general and limited partner shares in the partnership.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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