X0508 4 2023-09-14 0 0001589526 Blue Bird Corp BLBD 0001409751 Coliseum Capital Management, LLC 105 ROWAYTON AVE. ROWAYTON CT 06853 1 0 0 0 0001430708 Shackelton Christopher S 105 ROWAYTON AVE. ROWAYTON CT 06853 1 0 0 0 0001409585 Coliseum Capital, LLC 105 ROWAYTON AVE. ROWAYTON CT 06853 1 0 0 0 0001356974 COLISEUM CAPITAL PARTNERS, L.P. 105 ROWAYTON AVE. ROWAYTON CT 06853 1 0 0 0 0001454123 Gray Adam 105 ROWAYTON AVE. ROWAYTON CT 06853 1 0 0 0 0 Common Stock, par value $0.0001 ("Common Stock") 2023-09-14 4 S 0 1237500 21.00 D 0 I See Footnotes Sale of shares pursuant to an underwritten registered public offering. These securities sold were held by CCP (as defined below) and a separate account investment advisory client of CCM (as defined below) (the "Separate Account"). In connection with such sale and in respect of certain fees, CCP and the Separate Account also received payments of $197,618.61 and $62,256.39, respectively, from the Issuer. The Common Stock is held directly by (a) Coliseum Capital Partners, L.P. ("CCP"), an investment limited partnership of which Coliseum Capital, LLC, a Delaware limited liability company ("CC"), is general partner and for which Coliseum Capital Management, LLC, a Delaware limited liability company ("CCM"), serves as investment adviser, and (b) the Separate Account. Christopher Shackelton ("Shackelton") and Adam Gray ("Gray") are managers of and have an ownership interest in each of CCM and CC. Each of Shackelton, Gray, CCP, the Separate Account, CC and CCM disclaims beneficial ownership of these securities except to the extent of that person's pecuniary interest therein. Gray is a director of the Issuer. As a result, the following persons may be deemed directors by deputization of the Issuer solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended: CCM, CC, CCP, and Shackelton. Coliseum Capital, LLC, By: /s/ Thomas Sparta, Thomas Sparta, Attorney-in-fact 2023-09-18 Coliseum Capital Partners, L.P., By: Coliseum Capital, LLC, its General Partner, By: /s/ Thomas Sparta, Thomas Sparta, Attorney-in-fact 2023-09-18 Adam Gray, By: /s/ Thomas Sparta, Thomas Sparta, Attorney-in-fact 2023-09-18 Christopher Shackelton, By: /s/ Thomas Sparta, Thomas Sparta, Attorney-in-fact 2023-09-18