Free Writing Prospectus dated December 14, 2023
Relating to Prospectus dated December 22, 2021
Filed Pursuant to Rule 433 under the Securities Act of 1933
Registration Statement No. 333-261858
BLUE BIRD ANNOUNCES LAUNCH OF SECONDARY PUBLIC OFFERING
MACON, Ga. (December 14, 2023) Blue Bird Corporation (Blue Bird or the Company) (Nasdaq: BLBD), a leader in electric and
low-emission school buses, announced today that an affiliate of American Securities LLC (the Selling Stockholder) intends to offer 2,500,000 shares of Blue Birds common stock, par value
$0.0001 per share (the Common Stock), pursuant to a shelf registration statement filed with the Securities and Exchange Commission (the SEC).
The offering consists entirely of secondary shares to be sold by the Selling Stockholder. The Selling Stockholder will receive all of the proceeds from the
offering. The Company is not selling any shares of Common Stock in the offering and will not receive any proceeds from the offering.
BofA Securities and
Barclays are acting as the underwriters of the offering.
The underwriters propose to offer the shares of Common Stock from time to time for sale in one
or more transactions on the Nasdaq, in the over-the-counter market, through negotiated transactions or otherwise at market prices prevailing at the time of sale, at
prices related to prevailing market prices or at negotiated prices, subject to the underwriters right to reject any order in whole or in part.
The
offering is being made pursuant to an effective shelf registration statement (including a prospectus) filed by Blue Bird with the SEC on December 23, 2021, which became effective January 5, 2022, to which this communication relates. Before
you invest, you should read the prospectus in the shelf registration statement and the documents incorporated by reference therein, the free writing prospectus, the prospectus supplement and the documents incorporated by reference therein related to
this offering. The offering will be made only by means of a free writing prospectus, the prospectus and the related prospectus supplement. A copy of the free writing prospectus, the prospectus and the related prospectus supplement relating to the
offering may be obtained, when available, by visiting the SECs website at www.sec.gov. Copies of the prospectus and the related prospectus supplement for the offering may also be obtained, when available, by contacting BofA Securities,
NC1-022-02-25 201 North Tryon Street, Charlotte, NC 28255-0001, Attn: Prospectus Department, Email: dg.prospectus_requests@bofa.com and Barclays Capital Inc., c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717,
email: Barclaysprospectus@broadridge.com, telephone: (888) 603-5847.