Washington D.C. 20549 FORM 10-Q ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGEACT OF 1934 For the quarterly period ended December 27, 2025 OR ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGEACT OF 1934 Commission File Number 001-36267 BLUE BIRD CORPORATION (Exact name of registrant as specified in its charter) 3920 Arkwright Road, 2nd Floor, Macon,Georgia 31210(Address of principal executive offices and zip code) (478) 822-2801(Registrant’s telephone number, including area code) Securities registered pursuant to Section 12(b) of the Act: Title of each classTrading Symbol(s)Name of each exchange on which registeredCommon stock, $0.0001 par valueBLBDNASDAQ Global Market Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange 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☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submittedpursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that theregistrant was required to submit such files).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smallerreporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smallerreporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act. Large accelerated filerNon-acceleratedfiler Accelerated FilerSmallerreportingcompanyEmerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes☐No☒ At January30, 2026, 31,591,902 shares of the registrant’s common stock, $0.0001 par value, were outstanding. BLUE BIRD CORPORATIONFORM 10-Q TABLE OF CONTENTS PART I – FINANCIAL INFORMATIONItem 1. Financial Statements (Unaudited)Condensed Consolidated Balance SheetsCondensed Consolidated Statements of OperationsCondensed Consolidated Statements of Comprehensive IncomeCondensed Consolidated Statements of Cash FlowsCondensed Consolidated Statements of Stockholders' EquityNotes to Condensed Consolidated Financial StatementsItem 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.Item 3. Quantitative and Qualitative Disclosures About Market Risk.Item 4. Controls and Procedures.PART II – OTHER INFORMATIONItem 1. Legal Proceedings.Item 1A. Risk Factors.Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.Item 5. Other Information.Item 6. Exhibits.SIGNATURES BLUE BIRD CORPORATION AND SUBSIDIARIESCONDENSED CONSOLIDATED BALANCE SHEETS(Unaudited) December 27, 2025September 27, 2025 BLUE BIRD CORPORATION AND SUBSIDIARIESCONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS(Unaudited) BLUE BIRD CORPORATION AND SUBSIDIARIESCONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME(Unaudited) The accompanying notes are an integral part of these condensed consolidated financial statements. BLUE BIRD CORPORATION AND SUBSIDIARIESCONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS(Unaudited) BLUE BIRD CORPORATIONNOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Unaudited) 1. Nature of Business and Basis of Presentation Nature of Business Blue Bird Body Company ("BBBC"), a wholly-owned subsidiary of Blue Bird Corporation, was incorporated in 1958 and hasmanufactured, assembled and sold school buses to a variety of municipal, federal and commercial customers since 1927. The majorityof BBBC’s sales are made to an independent dealer network, which in turn sells buses to ultimate end users. References in these notesto condensed consolidated financial statements to “Blue Bird,” the “Company,” “we,” “our,” or “us” relate to Blue Bird Corporationand its wholly-owned subsidiaries, unless the context specifically indicates otherwise. We are headquartered in Macon, Georgia. Basis of Presentation The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-ownedsubsidiaries. All significant inter-company transactions and accounts have been eliminated in consolidation. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accountingprinciples generally accepted in the United States of America (“U.S. GAAP”) for interim financial reporting and Article 10 ofRegulatio