<SEC-DOCUMENT>0000052388-24-000144-index.html : 20240710
<SEC-HEADER>0000052388-24-000144.hdr.sgml : 20240710
<ACCEPTANCE-DATETIME>20240710112341
ACCESSION NUMBER:		0000052388-24-000144
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20240710
DATE AS OF CHANGE:		20240710

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HEARTLAND EXPRESS INC
		CENTRAL INDEX KEY:			0000799233
		STANDARD INDUSTRIAL CLASSIFICATION:	TRUCKING (NO LOCAL) [4213]
		ORGANIZATION NAME:           	01 Energy & Transportation
		IRS NUMBER:				930926999
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-39197
		FILM NUMBER:		241109157

	BUSINESS ADDRESS:	
		STREET 1:		901 HEARTLAND WAY
		CITY:			NORTH LIBERTY
		STATE:			IA
		ZIP:			52317
		BUSINESS PHONE:		3196457060

	MAIL ADDRESS:	
		STREET 1:		901 HEARTLAND WAY
		CITY:			NORTH LIBERTY
		STATE:			IA
		ZIP:			52317

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERICAN CENTURY INVESTMENT MANAGEMENT INC
		CENTRAL INDEX KEY:			0000052388
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		ORGANIZATION NAME:           	
		IRS NUMBER:				440640487
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		4500 MAIN STREET
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64111
		BUSINESS PHONE:		816-531-5575

	MAIL ADDRESS:	
		STREET 1:		4500 MAIN STREET
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64111

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INVESTORS RESEARCH CORP
		DATE OF NAME CHANGE:	19920929
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>heartlandexpress13g-a11.htm
<DESCRIPTION>SC 13G/A
<TEXT>
Document 1 - file: heartlandexpress13g-a11.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>image_13.jpg
<TEXT>
Document 2 - file: image_13.jpg

</DOCUMENT>
</SEC-DOCUMENT>