Blue Bird Corp

This Annual Report on Form 10-K of Blue Bird Corporation (“Blue Bird” or the “Company”) for the fiscal year ended September 27, 2025 (“Report”) contains forward-looking statements. Except as otherwise indicated by the context, references in this Report to “we,” “us” and “our” are to the consolidated business of the Company. All statements in this Report, including those made by management of the Company, other than statements of historical fact, are forward-looking statements. These forward-looking statements are based on management’s estimates, projections and assumptions as of the date hereof and include the assumptions that underlie such statements. Forward-looking statements may contain words such as “may,” “will,” “should,” “could,” “would,” “expect,” “plan,” “estimate,” “project,” “budget,” “forecast,” “seek,” “target,” “anticipate,” “believe,” “predict,” “potential” and “continue,” the negative of these terms, or other comparable terminology. Examples of forward-looking statements include statements regarding the Company’s future financial results, research and trial results, regulatory approvals, operating results, business strategies, projected costs, products, competitive positions, management’s plans and objectives for future operations, and industry trends. These forward-looking statements relate to expectations for future financial performance, business strategies or expectations for our business. Specifically, forward-looking statements may include statements relating to:

•the future financial performance of the Company;

•negative changes in the market for Blue Bird products;

•expansion plans and opportunities;

•challenges or unexpected costs related to manufacturing;

•future impacts from pandemics, epidemics or similar widespread disease or illness outbreaks (collectively, "public health crises") on capital markets, manufacturing and supply chain abilities, consumer and customer demand, school system operations, workplace conditions, and any other unexpected impacts, which could include, among other effects:

◦disruption in global financial and credit markets;

◦supply shortages and supplier financial risk, especially from our single-source suppliers impacted by public health crises;

◦negative impacts to manufacturing operations or the supply chain from shutdowns or other disruptions in operations;

◦negative impacts on capacity and/or production in response to changes in demand due to public health crises, including possible cost containment actions;

◦financial difficulties of our customers impacted by public health crises;

◦reductions in market demand for our products due to public health crises; and

◦potential negative impacts of various actions taken by foreign and United States of America ("U.S.") federal, state and/or local governments in response to public health crises.

•future impacts resulting from current and/or future military conflicts, which include or could include, among other effects:

◦disruption in global commodity and other markets;

◦supply shortages and supplier financial risk, especially from suppliers providing inventory that is dependent on resources originating from countries involved in military conflicts; and

◦negative impacts to manufacturing operations resulting from inventory cost volatility or the supply chain due to shutdowns or other disruptions in operations.

•future impacts resulting from changes in governmental policies, programs, regulations and/or laws, which include or could include, among other effects:

◦the imposition of new and/or revised trade policies and tariffs, which could increase the cost of components we and/or our suppliers purchase that would impact our cost to produce buses and purchase parts for resale; increase the prices we charge for our products to pass along part or all of our increased purchase costs; and/or impact the purchasing decisions of our customers that could result in them buying less, or none, of our products in future periods;

◦reductions in governmental grants, subsidies and/or other incentives, which would result in a decrease in funds that are used by school districts and fleet customers to partially, or fully, offset the higher price of alternative powered school buses and could impact the purchasing decisions of our customers that elect to buy less, or none, of our products in future periods; and

◦changes in current or future emissions regulations, which could increase the costs of powertrain components that we purchase from major suppliers and would impact our cost to produce buses and purchase parts for resale; increase the prices we charge for our products to pass along part or all of our increased purchase costs; and/or impact the purchasing decisions of our customers that could result in them buying less, or none, of our products in future periods.

These forward-looking statements are based on information available as of the date of this Report (or, in the case of forward-looking statements incorporated herein by reference, as of the date of the applicable filed document), and current expectations, forecasts and assumptions, and involve a number of judgments, risks and uncertainties. Accordingly, forward-looking statements should not be relied upon as representing our views as of any subsequent date, and we do not undertake any obligation to update forward-looking statements to reflect events or circumstances after the date they were made, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws. As a result of a number of known and unknown risks and uncertainties, our actual results or performance may be materially different than those expressed or implied by these forward-looking statements.

Any expectations based on these forward-looking statements are subject to risks and uncertainties and other important factors, including those discussed in this Report, particularly the sections titled “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” Other risks and uncertainties are and will be disclosed in the Company’s prior and future Securities and Exchange Commission ("SEC") filings. The following information should be read in conjunction with the financial statements included in this Report.

Available Information

We are subject to the reporting and information requirements of the Securities Exchange Act of 1934, as amended ("Exchange Act"), and as a result are obligated to file or furnish, as applicable, annual, quarterly, and current reports, proxy statements, and other information with the SEC. We make these documents and other information available free of charge on our website (https://www.blue-bird.com) as soon as reasonably practicable after we electronically file them with, or furnish them to, the SEC. Information on our website does not constitute part of this Report. In addition, the SEC maintains a website (https://www.sec.gov) that contains our annual, quarterly, and current reports, proxy and information statements, and other information we electronically file with, or furnish to, the SEC.