United States
Securities and Exchange Commission
Washington, D.C. 20549
|
||
SCHEDULE 13G
|
||
Under the Securities Exchange Act of 1934
|
||
(Amendment No. 1)*
|
||
HEARTLAND EXPRESS, INC. | ||
(Name of Issuer)
|
||
COMMON STOCK
|
||
(Title of Class of Securities)
|
||
422347104
|
||
(CUSIP Number)
|
||
JANUARY 31, 2016
|
||
(Date of Event Which Requires Filing of this Statement)
|
||
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
|
||
[ X ]
|
Rule 13d-1(b)
|
|
[ ]
|
Rule 13d-1(c)
|
|
[ ]
|
Rule 13d-1(d)
|
|
*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.
|
||
The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).
|
||
Page 1 of 9 Pages
|
CUSIP No. 422347104
|
|||||
1.
|
Names of Reporting Persons
American Century Capital Portfolios, Inc.
|
||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
|
||||
(a)
|
[ ]
|
||||
(b)
|
[ ]
|
||||
3.
|
SEC Use Only
|
||||
4.
|
Citizenship or Place of Organization
Maryland
|
||||
5.
|
Sole Voting Power
|
6,026,841
|
|||
Number of Shares
Beneficially
|
6.
|
Shared Voting Power
|
N/A
|
||
Owned by
|
|||||
Each
Reporting
|
7.
|
Sole Dispositive Power
|
6,026,841
|
||
Person With:
|
|||||
8.
|
Shared Dispositive Power
|
N/A
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
|
6,026,841
|
|||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares
(See Instructions) [ ]
|
||||
11.
|
Percent of Class Represented by Amount in Row (9)
|
7.17%
|
|||
12.
|
Type of Reporting Person (See Instructions)
|
IV
|
|||
Page 2 of 9 pages
|
CUSIP No. 422347104
|
|||||
1.
|
Names of Reporting Persons
American Century Investment Management, Inc.
|
||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
|
||||
(a)
|
[ ]
|
||||
(b)
|
[ ]
|
||||
3.
|
SEC Use Only
|
||||
4.
|
Citizenship or Place of Organization
Delaware
|
||||
5.
|
Sole Voting Power
|
8,325,445
|
|||
Number of Shares
Beneficially
|
6.
|
Shared Voting Power
|
N/A
|
||
Owned by
|
|||||
Each
Reporting
|
7.
|
Sole Dispositive Power
|
8,457,727
|
||
Person With:
|
|||||
8.
|
Shared Dispositive Power
|
N/A
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
|
8,457,727
|
|||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares
(See Instructions) [ ]
|
|
|||
11.
|
Percent of Class Represented by Amount in Row (9)
|
10.05%
|
|||
12.
|
Type of Reporting Person (See Instructions)
|
IA
|
|||
Page 3 of 9 pages
|
CUSIP No. 422347104
|
|||||
1.
|
Names of Reporting Persons
American Century Companies, Inc.
|
||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
|
||||
(a)
|
[ ]
|
||||
(b)
|
[ ]
|
||||
3.
|
SEC Use Only
|
||||
4.
|
Citizenship or Place of Organization
Delaware
|
||||
5.
|
Sole Voting Power
|
8,325,445
|
|||
Number of Shares
Beneficially
|
6.
|
Shared Voting Power
|
N/A
|
||
Owned by
|
|||||
Each
Reporting
|
7.
|
Sole Dispositive Power
|
8,457,727
|
||
Person With:
|
|||||
8.
|
Shared Dispositive Power
|
N/A
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
|
8,457,727
|
|||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares
(See Instructions) [ ]
|
||||
11.
|
Percent of Class Represented by Amount in Row (9)
|
10.05%
|
|||
12.
|
Type of Reporting Person (See Instructions)
|
HC
|
|||
Page 4 of 9 pages
|
CUSIP No. 422347104
|
|||||
1.
|
Names of Reporting Persons
Stowers Institute for Medical Research
|
||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
|
||||
(a)
|
[ ]
|
||||
(b)
|
[ ]
|
||||
3.
|
SEC Use Only
|
||||
4.
|
Citizenship or Place of Organization
Delaware
|
||||
5.
|
Sole Voting Power
|
8,325,445
|
|||
Number of Shares
Beneficially
|
6.
|
Shared Voting Power
|
N/A
|
||
Owned by
|
|||||
Each
Reporting
|
7.
|
Sole Dispositive Power
|
8,457,727
|
||
Person With:
|
|||||
8.
|
Shared Dispositive Power
|
N/A
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
|
8,457,727
|
|||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares
(See Instructions) [ ]
|
||||
11.
|
Percent of Class Represented by Amount in Row (9)
|
10.05%
|
|||
12.
|
Type of Reporting Person (See Instructions)
|
HC
|
|||
Page 5 of 9 pages
|
Item 1.
|
||
(a)
|
Name of Issuer.
|
|
Heartland Express, Inc.
|
||
(b)
|
Address of Issuer’s Principal Executive Offices
|
|
901 North Kansas Avenue
North Liberty, Iowa 52317
|
||
Item 2.
|
||
(a)
|
Name of Person Filing.
|
|
(1)
|
American Century Capital Portfolios, Inc.
|
|
(2)
|
American Century Investment Management, Inc.
|
|
(3)
|
American Century Companies, Inc.
|
|
(4) | Stowers Institute for Medical Research | |
(b)
|
Address of Principal Business Office or, if none, Residence.
|
|
4500 Main Street
9th Floor
Kansas City, Missouri 64111
|
||
(c)
|
Citizenship.
|
|
(1)
|
Maryland
|
|
(2)
|
Delaware
|
|
(3)
|
Delaware
|
|
(4) | Delaware | |
(d)
|
Title of Class of Securities.
|
|
Reference is made to the cover page of this filing.
|
||
(e)
|
CUSIP Number.
|
|
Reference is made to the cover page of this filing.
|
||
Page 6 of 9 pages
|
Item 3.
|
If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
|
|
(1)
|
American Century Capital Portfolios, Inc. is an investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
|
|
(2)
|
American Century Investment Management, Inc. is an investment adviser in accordance with §240.13d-1(b)(1)(ii)(E).
|
|
(3)
|
American Century Companies, Inc. is a parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G). | |
(4) | Stowers Institute for Medical Research, is a parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G). | |
Item 4.
|
Ownership.
|
|
Reference is made to Items 5-9 and 11 on the cover page of this filing.
|
||
Item 5.
|
Ownership of Five Percent or Less of a Class.
|
|
If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ ].
|
||
Item 6.
|
Ownership of More than Five Percent on Behalf of Another Person.
|
|
Various persons, including the investment companies and separate institutional investor accounts that American Century Investment Management, Inc. (“ACIM”) serves as investment adviser, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities that are the subject of this schedule. Except as may be otherwise indicated if this is a joint filing, not more than 5% of the class of securities that is the subject of this schedule is owned by any one client advised by ACIM.
|
||
Item 7.
|
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company
|
|
See attached Exhibit A.
|
||
Item 8.
|
Identification and Classification of Members of the Group.
|
|
Not applicable.
|
||
Item 9.
|
Notice of Dissolution of Group.
|
|
Not applicable.
|
||
Page 7 of 9 pages
|
Item 10.
|
Certification
|
AMERICAN CENTURY CAPITAL PORTFOLIOS, INC. ("ACCP")
|
||
AMERICAN CENTURY INVESTMENT MANAGEMENT, INC. (“ACIM”)
|
||
AMERICAN CENTURY COMPANIES, INC. (“ACC”) | ||
By:
|
/s/ Charles A. Etherington
|
|
Charles A. Etherington
|
||
Senior Vice President, ACIM and ACCP
|
||
Vice President, ACC
|
||
STOWERS INSTITUTE FOR MEDICAL RESEARCH, solely in its capacity as control entity of ACC
|
||
By:
|
/s/ Richard W. Brown
|
|
Richard W. Brown
|
||
Chairman
|
AMERICAN CENTURY CAPITAL PORTFOLIOS, INC. ("ACCP")
|
||
AMERICAN CENTURY INVESTMENT MANAGEMENT, INC. (“ACIM”)
|
||
AMERICAN CENTURY COMPANIES, INC. (“ACC”) | ||
By:
|
/s/ Charles A. Etherington
|
|
Charles A. Etherington
|
||
Senior Vice President, ACIM and ACCP
|
||
Vice President, ACC
|
||
STOWERS INSTITUTE FOR MEDICAL RESEARCH, solely in its capacity as control entity of ACC
|
||
By:
|
/s/ Richard W. Brown
|
|
Richard W. Brown
|
||
Chairman
|