ArcBest 2025年年度报告

Washington, D.C. 20549 FORM 11-K (Mark One) ☒ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF1934 A.Full title of the plan and the address of the plan, if different from that of the issuer named below: ArcBest 401(k) and DC Retirement Plan B.Name of issuer of the securities held pursuant to the plan and the address of its principal executive office: ArcBest Corporation8401 McClure DriveFort Smith, Arkansas 72916 ArcBest 401(k) and DC Retirement PlanEIN 71-0673405 PN 002Report of Independent Registered Public AccountingFirm and Financial Statements Contents Report of Independent Registered Public Accounting Firm3 Financial StatementsStatements of Net Assets Available for Benefits4Statements of Changes in Net Assets Available for Benefits5Notes to Financial Statements6 Supplemental SchedulesSchedule H, Line 4a – Schedule of Delinquent Participant14Schedule H, Line 4i – Schedule of Assets (Held at End of Year)15Signatures16Exhibit Index17 Report of Independent Registered Public Accounting Firm Audit Committee, Investment Committee, Plan Administrator, and Plan ParticipantsArcBest 401(k) and DC Retirement Plan Opinion on the Financial Statements We have audited the accompanying statements of net assets available for benefits of ArcBest 401(k) and DCRetirement Plan (Plan) as of December 31, 2025 and 2024 and the related statements of changes in net assetsavailable for benefits for the years then ended and the related notes (collectively referred to as the “financialstatements”). In our opinion, the financial statements referred to above present fairly, in all material respects, the net Basis of Opinion These financial statements are the responsibility of the Plan’s management. Our responsibility is to express anopinion on these financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States)(PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan andperform the audits to obtain reasonable assurance about whether the financial statements are free of materialmisstatement, whether due to error or fraud. The Plan is not required to have, nor were we engaged to perform, anaudit of its internal control over financial reporting. As part of our audits, we are required to obtain an Our audits included performing procedures to assess the risks of material misstatement of the financial statements,whether due to error or fraud, and performing procedures that respond to those risks. Such procedures includedexamining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our auditsalso included evaluating the accounting principles used and significant estimates made by management, as well as Report on Supplemental Information The supplemental information in the accompanying schedules, Schedule H, Line 4a – Schedule of DelinquentParticipant Contributions for the year ended December 31, 2025 and Schedule H, Line 4i – Schedule of Assets(Held at End of Year) as of December 31, 2025, has been subjected to audit procedures performed in conjunctionwith the audit of the Plan’s financial statements. The supplemental schedules are the responsibility of the Plan’smanagement. Our audit procedures included determining whether the supplemental schedules reconcile to thefinancial statements or the underlying accounting and other records, as applicable, and performing procedures to /s/Forvis Mazars, LLP ArcBest 401(k) and DC Retirement PlanStatements of Net Assets Available for BenefitsDecember 31, 2025 and 2024 ArcBest 401(k)and DC Retirement PlanNotes to Financial StatementsDecember31, 2025 and 2024 Note 1: Description of the Plan The following description of the ArcBest 401(k) and DC Retirement Plan (the “Plan”) provides only generalinformation. For a more complete description of the Plan’s provisions, participants should refer to the Plandocument andSummary Plan Description, which are available from the Plan Administrator, ArcBest Corporation. General The Plan is a defined contribution plan sponsored by ArcBest Corporation which covers eligible employees ofArcBest Corporation and substantially all of its subsidiaries including: ABF Freight System, Inc.; ABF Cartage,Inc.; ArcBest II, Inc.; ArcBest Technologies, Inc.; ArcBest International, Inc.; and MoLo Solutions, LLC;(“Participating Companies” or collectively, the “Company”), except for employees of collective bargaining units,casual employees (defined as part-time employees who work less than thirty hours per week) who have notcompleted certain periods of service and leased employees. The Plan provides a DC Retirement feature (the “DC feature”) for eligible employees. The DC feature of the Plancovers substantially all regular full-time employee