Blue Bird Corporation filed a Current Report on Form 8-K with the Securities and Exchange Commission on October 1, 2026. The filing is intended to satisfy the registration requirements for a prospectus supplement to the Company’s existing automatic shelf registration statement on Form S-3 (File No. 333-284017).
The Prospectus Supplement relates to the resale of up to 2,702,180 shares of the Company’s common stock. These shares are issuable upon the exchange, retraction, or redemption of non-voting exchangeable shares of MB Exchangeco Inc., an indirect wholly-owned Canadian subsidiary of Blue Bird. The resale is also permitted in connection with certain liquidation, dissolution, winding-up, or insolvency events involving Blue Bird or MB ExchangeCo.
The Exchangeable Shares were issued by MB ExchangeCo in connection with Blue Bird’s acquisition of a 50% interest in its Micro Bird joint venture enterprise. That acquisition was completed on April 1, 2026.
The filing includes an opinion from Smith, Gambrell & Russell, LLP regarding the validity of the common stock offered by the Prospectus Supplement. The opinion is attached as Exhibit 5.1 to the report.
