Swift Transportation Company (Exact Name of Registrant As Specified in Its Charter)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2010 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35007 Swift Transportation Company (Exact name of registrant as specified in its charter) Delaware 20-5589597 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 2200 South 75th Avenue Phoenix, Arizona 85043 (Address of principal executive offices) (Zip Code) (602) 269-9700 (Registrant’s telephone number, including area code) Securities registered pursuant to Section 12(b) of the Act: Class A Common Stock, par value $0.01 per share New York Stock Exchange (Title of each class) (Name of exchange on which registered) Securities registered pursuant to section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. o Yes No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. o Yes No Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes o No Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). o Yes o No Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one): Large accelerated filer o Accelerated filer o Non-accelerated filer Smaller reporting company o (Do not check if a smaller reporting company) Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). o Yes No There was no voting common stock held by non-affiliates of the registrant as of June 30, 2010. There were 79,359,344 shares of the registrant’s Class A Common Stock and 60,116,713 shares of the registrant’s Class B Common Stock outstanding as of March 24, 2011. DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant’s definitive proxy statement for its 2011 Annual Meeting of Stockholders to be filed with the Securities and Exchange Commission (the “SEC”) are incorporated by reference into Part III of this report. TABLE OF CONTENTS Page PART I Item 1. Business 3 Item 1A. Risk Factors 16 Item 1B. Unresolved Staff Comments 31 Item 2. Properties 31 Item 3. Legal Proceedings 32 Item 4. Reserved 35 PART II Item 5. Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities 36 Item 6. Selected Financial Data 38 Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations 45 Item 7A. Quantitative and Qualitative Disclosures About Market Risk 69 Item 8. Financial Statements and Supplementary Data 69 Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure 114 Item 9A. Controls and Procedures 114 Item 9B. Other Information 114 PART III Item 10. Directors, Executive Officers and Corporate Governance 115 Item 11. Executive Compensation 115 Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters 115 Item 13. Certain Relationships and Related Transactions, and Director Independence 115 Item 14. Principal Accounting Fees and Services 115 PART IV Item 15. Exhibits, Financial Statement Schedules 116 Signatures 119 Exhibit 2.1 Exhibit 3.1 Exhibit 3.2 Exhibit 10.2 Exhibit 10.5 Exhibit 21.1 Exhibit 23.1 Exhibit 31.1 Exhibit 31.2 Exhibit 32 1 Table of Contents Unless we state otherwise or the context otherwise requires, references in this report to “Swift,” “we,” “our,” “us,” and the “Company” for all periods subsequent to the reorganization transactions described below refer to Swift Transportation Company (formerly Swift Holdings Corp.), a newly formed Delaware corporation, and its consolidated subsidiaries after giving effect to such reorganization transactions. For all periods from May 11, 2007 until the completion of such reorganization transactions, these terms refer to Swift Corporation, a Nevada corporation, which also is referred to herein as our “successor,” and its consolidated subsidiaries. For all periods prior to May 11, 2007, these terms refer to Swift Corporation’s predecessor, Swift Transportation Co., Inc., a Nevada corporation that has been converted to a Delaware limited liability company known as Swift Transportation Co., LLC, which also is referred to herein as Swift Transportation, or our “predecessor,” and its consolidated subsidiaries. FORWARD-LOOKING STATEMENTS Special Note Regarding Forward-Looking Statements This report contains “forward-looking statements” within the meaning of the federal securities laws that involve risks and uncertainties. Forward-looking statements include statements we make concerning our plans, objectives, goals, strategies, future events, future revenues or performance, capital expenditures, financing needs, and other information that is not historical information and, in particular, appear under the headings entitled “Risk Factors,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Business.” When used in this report, the words “estimates,” “expects,” “anticipates,” “projects,” “forecasts,” “plans,” “intends,” “believes,” “foresees,” “seeks,” “likely,” “may,” “will,” “should,” “goal,” “target,” and variations of these words or similar expressions (or the negative versions of any such words) are intended to identify forward-looking statements. In addition, we, through our senior management, from time to time make forward-looking public statements concerning our expected future operations and performance and other developments. These forward-looking statements are subject to risks and uncertainties that may change at any time, and, therefore, our actual results may differ materially from those that we expected. Accordingly, you should not place undue reliance on our forward-looking statements. We derive many of our forward-looking statements from our operating budgets and forecasts, which are based upon many detailed assumptions. While we believe that our assumptions are reasonable, we caution that it is very difficult to predict the impact of known factors, and, of course, it is impossible for us to anticipate all factors that could affect our actual results. All forward-looking statements are based upon information available to us on the date of this report. We undertake no obligation to publicly update or revise forward-looking statements to reflect events or circumstances after the date made or to reflect the occurrence of unanticipated events, except as required by law. Important factors that could cause actual results to differ materially from our expectations (“cautionary statements”) are disclosed under “Risk Factors” and elsewhere in this report. All forward-looking statements in this report and subsequent written and oral forward-looking statements attributable to us, or persons acting on our behalf, are expressly qualified in their entirety by the cautionary statements. The Company undertakes no obligation to update or revise forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events, or changes to projections over time. 2 Table of Contents PART I Item 1. Business Overview We are a multi-faceted transportation services company and the largest truckload carrier in North America. At December 31, 2010, we operated a tractor fleet of approximately 16,100 units comprised of 12,200 tractors driven by company drivers and 3,900 owner-operator tractors, a fleet of 49,000 trailers, and 4,800 intermodal containers from 34 major terminals positioned near major freight centers and traffic lanes in the United States and Mexico. During 2010, our tractors covered 1.5 billion miles and we transported or arranged approximately three million loads for shippers throughout North America. Our asset-based operations include general truckload, dedicated truckload, and cross- border truckload services, each of which offer a combination of dry van, temperature controlled, flatbed, or other specialized equipment. Our complementary and more rapidly growing “asset-light” services include rail intermodal, freight brokerage, and third-party logistics operations. We use sophisticated

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