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Arcosa, Inc.

For the period ended Dec 31, 2025. Filed Feb 27, 2026.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 27, 2026

ACA$149.15+0.1%Stored close · as of Oct 22, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Item 8. Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm

To the Shareholders and the Board of Directors of Arcosa, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Arcosa, Inc. and subsidiaries (the Company) as of December 31, 2025 and 2024, the related consolidated statements of operations, comprehensive income, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2025, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2025, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated February 27, 2026 expressed an unqualified opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. 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 included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Valuation of Goodwill

Description of the MatterAt December 31, 2025, the Company’s goodwill was $1,348.9 million, including goodwill assigned to the Construction Products, Engineered Structures, and Transportation Products segments of $848.9 million, $480.1 million, and $19.9 million, respectively. As discussed in Note 1 of the consolidated financial statements, goodwill is required to be tested for impairment annually, or on an interim basis whenever events or circumstances change, indicating that the carrying amount of the goodwill might be impaired. Auditing management’s annual goodwill impairment test involved subjective judgments due to the significant estimation required in determining the fair value of the Construction Materials reporting unit. In particular, the estimate of fair value is sensitive to changes in assumptions that impact the discount rate, the most significant being the company specific risk premium, which directly impacts the fair value of the Construction Materials reporting unit. Our risk assessment for goodwill impairment considers the amount by which the estimated fair value of a reporting unit exceeds the carrying value of its net assets since the level of precision required for estimated fair value increases as the difference between the estimated fair value and the carrying value narrows.
How We Addressed the Matter in Our AuditWe obtained an understanding, evaluated the design and tested the operating effectiveness of controls over the Company’s goodwill impairment process. For example, we tested controls over the estimation of the fair value of the Construction Materials reporting unit, including the Company’s controls over the valuation methodology and development of the underlying significant assumptions used to determine the fair value of the Construction Materials reporting unit.To test the estimated fair value the Construction Materials reporting unit, our audit procedures included, among others, (i) assessing the appropriateness of the methodology utilized by management; (ii) assessing the underlying data used by the Company it its analysis, including testing the significant assumptions used in the development of the discount rate; (iii) performing sensitivity analyses on the discount rate; and (iv) reviewing the reconciliation of the fair value of all reporting units to the market capitalization of the Company and assessing the resulting control premium. In addition, we involved valuation specialists to assist us in evaluating the methodology and the discount rate used in determining the fair value estimate.
/s/ERNST & YOUNG LLP

We have served as the Company's auditor since 2015.

Dallas, Texas

February 27, 2026

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