Form 10-Q - Quarterly report [Sections 13 or 15(d)]

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

FORM 10-Q


☒			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended December 28, 2024


☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ................................ to ...............................................

Commission File Number 001-36267

BLUE BIRD CORPORATION

(Exact name of registrant as specified in its charter)

Delaware 46-3891989

(State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.)

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 class

Trading Symbol(s)

Name of each exchange on which registered

Common stock, $0.0001 par value

BLBD

NASDAQ 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 Securities Exchange 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 submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant 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 smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer

☒

Accelerated Filer

☐

Non-accelerated filer

☐

Smaller reporting company

☐

Emerging growth company

☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying 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 January 31, 2025, 32,111,078 shares of the registrant’s common stock, $0.0001 par value, were outstanding.

BLUE BIRD CORPORATION

FORM 10-Q

TABLE OF CONTENTS



PART I – FINANCIAL INFORMATION			2
Item 1. Financial Statements (Unaudited)			2
Condensed Consolidated Balance Sheets			2
Condensed Consolidated Statements of Operations			3
Condensed Consolidated Statements of Comprehensive Income			4
Condensed Consolidated Statements of Cash Flows			5
Condensed Consolidated Statements of Stockholders' Equity			7
Notes to Condensed Consolidated Financial Statements			8
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.			17
Item 3. Quantitative and Qualitative Disclosures About Market Risk.			28
Item 4. Controls and Procedures.			29
PART II – OTHER INFORMATION			30
Item 1. Legal Proceedings.			30
Item 1A. Risk Factors.			30
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.			30
Item 5. Other Information.			31
Item 6. Exhibits.			32
SIGNATURES			33

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements (Unaudited)

BLUE BIRD CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)


(in thousands of dollars, except for share data)	December 28, 2024		September 28, 2024
Assets
Current assets
Cash and cash equivalents	$	136,119	$	127,687
Accounts receivable, net	13,996		59,099
Inventories	163,120		127,798
Other current assets	17,623		8,795
Total current assets	$	330,858	$	323,379

Property, plant and equipment, net	$	98,384	$	97,322
Goodwill	18,825		18,825
Intangible assets, net	43,087		43,554
Equity investment in affiliates	34,393		32,089
Deferred tax assets	2,112		2,399
Finance lease right-of-use assets	156		332
Pension	5,156		4,649
Other assets	2,251		2,345
Total assets	$	535,222	$	524,894
Liabilities and Stockholders' Equity
Current liabilities
Accounts payable	$	137,757	$	143,156
Warranty	7,059		7,166
Accrued expenses	46,738		55,775
Deferred warranty income	9,907		9,421
Finance lease obligations	436		975
Other current liabilities	22,530		14,480
Current portion of long-term debt	5,000		5,000
Total current liabilities	$	229,427	$	235,973
Long-term liabilities
Revolving credit facility	$	—	$	—
Long-term debt	88,828		89,994
Warranty	9,068		9,013
Deferred warranty income	19,652		18,541
Deferred tax liabilities	368		2,783
Finance lease obligations	6		6
Other liabilities	8,168		9,020

Total long-term liabilities	$	126,090	$	129,357
Guarantees, commitments and contingencies (Note 6)
Stockholders' equity
Preferred stock, $0.0001 par value, 10,000,000 shares authorized, 0 shares outstanding at December 28, 2024 and September 28, 2024	$	—	$	—
Common stock, $0.0001 par value, 100,000,000 shares authorized, 32,111,078 and 32,268,022 shares issued and outstanding at December 28, 2024 and September 28, 2024, respectively	3		3
Additional paid-in capital	187,379		185,977
Retained earnings	18,686		—
Accumulated other comprehensive loss	(26,363)		(26,416)

Total stockholders' equity	$	179,705	$	159,564
Total liabilities and stockholders' equity	$	535,222	$	524,894

The accompanying notes are an integral part of these condensed consolidated financial statements.

BLUE BIRD CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)


	Three Months Ended
(in thousands of dollars except for share data)	December 28, 2024		December 30, 2023
Net sales	$	313,872	$	317,660
Cost of goods sold	253,555		254,102
Gross profit	$	60,317	$	63,558
Operating expenses
Selling, general and administrative expenses	27,275		25,602
Operating profit	$	33,042	$	37,956
Interest expense	(1,915)		(3,631)
Interest income	1,568		1,088
Other income (expense), net	2,916		(1,221)
Loss on debt refinancing	—		(1,558)
Income before income taxes	$	35,611	$	32,634
Income tax expense	(8,693)		(8,446)
Equity in net income of non-consolidated affiliates	1,804		1,962
Net income	$	28,722	$	26,150

Earnings per share:
Basic weighted average shares outstanding	32,227,723		32,170,779
Diluted weighted average shares outstanding	33,360,940		32,429,127
Basic earnings per share	$	0.89	$	0.81
Diluted earnings per share	$	0.86	$	0.81

The accompanying notes are an integral part of these condensed consolidated financial statements.

BLUE BIRD CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Net income	$	28,722	$	26,150
Other comprehensive income, net of tax:
Net change in defined benefit pension plan	53		131

Total other comprehensive income	$	53	$	131
Comprehensive income	$	28,775	$	26,281

The accompanying notes are an integral part of these condensed consolidated financial statements.

BLUE BIRD CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Cash flows from operating activities
Net income	$	28,722	$	26,150
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	3,856		3,618
Non-cash interest expense	84		132
Share-based compensation expense	2,506		2,051
Equity in net income of non-consolidated affiliates	(1,804)		(1,962)
Dividend from equity investment in affiliates	—		2,991
Loss on disposal of fixed assets	20		4


Deferred income tax expense	(2,145)		1,143
Amortization of deferred actuarial pension losses	70		172
Loss on debt refinancing	—		1,558
Changes in assets and liabilities:
Accounts receivable	45,103		1,467
Inventories	(35,322)		(7,171)
Other assets	(9,241)		(3,095)
Accounts payable	(5,473)		(23,103)
Accrued expenses, pension and other liabilities	34		(3,738)

Total adjustments	$	(2,312)	$	(25,933)
Total cash provided by operating activities	$	26,410	$	217
Cash flows from investing activities
Cash paid for fixed assets	$	(4,594)	$	(2,904)
Equity investment in affiliates (Note 12)	(500)		—

Total cash used in investing activities	$	(5,094)	$	(2,904)
Cash flows from financing activities
Revolving credit facility borrowings	$	—	$	36,220

Term loan borrowings	—		100,000
Term loan repayments	(1,250)		(131,800)
Principal payments on finance leases	(538)		(145)
Cash paid for debt costs	—		(3,128)


Repurchase of common stock in connection with repurchase program (Note 13)	(10,036)		—
Repurchase of common stock in connection with stock award exercises	(1,445)		(301)
Cash received from stock option exercises	385		149

Total cash (used in) provided by financing activities	$	(12,884)	$	995
Change in cash and cash equivalents	8,432		(1,692)
Cash and cash equivalents at beginning of period	127,687		78,988
Cash and cash equivalents at end of period	$	136,119	$	77,296


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Supplemental disclosures of cash flow information
Cash paid or received during the period:
Interest paid	$	2,368	$	2,895
Interest received	(1,436)		(1,088)
Income tax paid, net of tax refunds	80		2
Non-cash investing and financing activities:
Changes in accounts payable for capital additions to property, plant and equipment	$	1,940	$	953



Warrants issued for equity investment in affiliate	—		7,416

Right-of-use assets obtained in exchange for operating lease obligations	—		1,241

The accompanying notes are an integral part of these condensed consolidated financial statements.

BLUE BIRD CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(Unaudited)


	Three Months Ended
(in thousands of dollars, except for share data)	Common Stock					Convertible Preferred Stock							Treasury Stock
	Shares	Par Value		Additional Paid-In-Capital		Shares	Amount		Accumulated Other Comprehensive Loss		Retained Earnings (Accumulated Deficit)		Shares	Amount		Total Stockholders' Equity
Balance, September 28, 2024	32,268,022	$	3	$	185,977	—	$	—	$	(26,416)	$	—	—	$	—	$	159,564



Restricted stock activity	57,420	—		(1,445)		—	—		—		—		—	—		(1,445)
Stock option activity	29,086	—		385		—	—		—		—		—	—		385

Share-based compensation expense	—	—		2,462		—	—		—		—		—	—		2,462
Share repurchases (Note 13)	(243,450)	—		—		—	—		—		(10,036)		—	—		(10,036)


Net income	—	—		—		—	—		—		28,722		—	—		28,722
Other comprehensive income, net of tax	—	—		—		—	—		53		—		—	—		53
Balance, December 28, 2024	32,111,078	$	3	$	187,379	—	$	—	$	(26,363)	$	18,686	—	$	—	$	179,705

Balance, September 30, 2023	32,165,225	$	3	$	177,861	—	$	—	$	(31,884)	$	(55,700)	1,782,568	$	(50,282)	$	39,998
Issuance of warrants	—	—		7,416		—	—		—		—		—	—		7,416

Restricted stock activity	22,115	—		(301)		—	—		—		—		—	—		(301)
Stock option activity	11,252	—		149		—	—		—		—		—	—		149

Share-based compensation expense	—	—		2,034		—	—		—		—		—	—		2,034


Net income	—	—		—		—	—		—		26,150		—	—		26,150
Other comprehensive income, net of tax	—	—		—		—	—		131		—		—	—		131
Balance, December 30, 2023	32,198,592	$	3	$	187,159	—	$	—	$	(31,753)	$	(29,550)	1,782,568	$	(50,282)	$	75,577

BLUE BIRD CORPORATION

NOTES 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 has manufactured, assembled and sold school buses to a variety of municipal, federal and commercial customers since 1927. The majority of BBBC’s sales are made to an independent dealer network, which in turn sells buses to ultimate end users. References in these notes to condensed consolidated financial statements to “Blue Bird,” the “Company,” “we,” “our,” or “us” relate to Blue Bird Corporation and 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-owned subsidiaries. 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 accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial reporting and Article 10 of Regulation S-X. The Company’s fiscal year ends on the Saturday closest to September 30 with its quarters consisting of thirteen weeks in most years. The fiscal years ending September 27, 2025 ("fiscal 2025") and ended September 28, 2024 ("fiscal 2024") consist or consisted of 52 weeks. The first quarters of fiscal 2025 and fiscal 2024 both included 13 weeks.

In the opinion of management, all adjustments considered necessary for a fair presentation of financial results have been made. Such adjustments consist of only those of a normal recurring nature. Operating results for any interim period are not necessarily indicative of the results that may be expected for the entire year. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements.

The Condensed Consolidated Balance Sheet data as of September 28, 2024 was derived from the Company’s audited financial statements but does not include all disclosures required by U.S. GAAP. For additional information, including the Company’s significant accounting policies, refer to the consolidated financial statements and related footnotes as of and for the fiscal year ended September 28, 2024 as set forth in the Company's fiscal 2024 Form 10-K filed with the Securities and Exchange Commission ("SEC") on November 25, 2024.

Impacts of Supply Chain Constraints on Our Business

The global automotive industry supply chain constraints that arose subsequent to the novel coronavirus pandemic known as "COVID-19" and that were further exacerbated by additional stress resulting from Russia’s invasion of Ukraine in February 2022 continued to impact our business and operations during the first quarters of fiscal 2024 and 2025. Specifically, they continued to result in higher purchasing costs, including freight costs incurred to deliver critical components, to procure the raw materials inventory needed to produce buses to fulfill sales orders. Additionally, there were still occasional shortages of certain critical components that limited the number and/or mix of school buses that we could produce and sell. Nonetheless, ongoing improvements in manufacturing operations that have resulted in the consistent production of buses, when coupled with periodic pricing actions taken to ensure that the increased sales prices charged for buses keep pace with increased costs to procure inventory to produce buses, have resulted in the Company reporting gross profit and gross margin in the first quarters of fiscal 2025 and 2024 that exceeded those reported in pre-pandemic fiscal years.

Significant uncertainty still exists concerning the magnitude and duration of the ongoing supply chain constraints and accordingly, precludes any prediction as to the ultimate severity of the adverse impacts on our business, financial condition, results of operations, and liquidity.

Use of Estimates and Assumptions

The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions. At the date of the financial statements, these estimates and assumptions affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities, and during the reporting period, these estimates and assumptions affect the reported amounts of revenues and expenses. For example, significant management judgments are required in determining excess, obsolete, or

unsalable inventory; the allowance for doubtful accounts; potential impairment of long-lived assets, goodwill and intangible assets; and the accounting for self-insurance reserves, warranty reserves, pension obligations, income taxes, environmental liabilities and contingencies. Future events, including the extent and duration of continued supply chain constraints and their related economic impacts, and their effects cannot be predicted with certainty, and, accordingly, the Company’s accounting estimates require the exercise of judgment. The accounting estimates used in the preparation of the Company’s condensed consolidated financial statements may change as new events occur, as more experience is acquired, as additional information is obtained and as the Company’s operating environment changes. The Company evaluates and updates its assumptions and estimates on an ongoing basis and may employ outside experts to assist in the Company’s evaluations. Actual results could differ from the estimates that the Company has used.

2. Summary of Significant Accounting Policies and Recently Issued Accounting Standards

The Company’s significant accounting policies are described in the Company’s fiscal 2024 Form 10-K, filed with the SEC on November 25, 2024. Our senior management has reviewed these significant accounting policies and related disclosures and determined that there were no significant changes in our critical accounting policies in the three months ended December 28, 2024.

Recently Issued Accounting Standards

ASU 2023-07 On November 27, 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires public business entities ("PBEs") to disclose information about their reportable segments’ significant expenses on an interim and annual basis. The ASU is effective for fiscal years beginning after December 15, 2023, and interim periods beginning after December 15, 2024, with early adoption permitted.

ASU 2023-09 On December 14, 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires entities to disclose more detailed information in their reconciliation of their statutory tax rate to their effective tax rate. PBEs are required to provide this incremental detail in a numerical, tabular format. The ASU also requires entities to disclose more detailed information about income taxes paid, including by jurisdiction; pretax income (or loss) from continuing operations; and income tax expense (or benefit). The ASU is effective for PBEs in fiscal years beginning after December 15, 2024, with early adoption permitted.

ASUs 2024-03 & 2025-01 On November 4, 2024, the FASB issued ASU 2024-03, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires PBEs to disclose disaggregated information about certain income statement expense line items. On January 6, 2025, the FASB issued ASU 2025-01, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date, to clarify the effective date of ASU 2024-03, which is for fiscal years beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027.

The new ASUs will not impact amounts recorded in the financial statements but instead, will require more detailed disclosures in the footnotes to the financial statement. The Company plans to provide the updated disclosures required by the ASUs in the periods in which they are effective.

3. Supplemental Financial Information

Inventories

The following table presents the components of inventories at the dates indicated:


(in thousands of dollars)	December 28, 2024		September 28, 2024
Raw materials	$	104,495	$	83,027
Work in process	38,256		32,556
Finished goods	20,369		12,215
Total inventories	$	163,120	$	127,798

Product Warranties

The following table reflects activity in accrued warranty cost (current and long-term portions combined) for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Balance at beginning of period	$	16,179	$	15,434
Add current period accruals	2,538		2,341
Current period reductions of accrual	(2,590)		(2,492)
Balance at end of period	$	16,127	$	15,283

Extended Warranties

The following table reflects activity in deferred warranty income (current and long-term portions combined), for the sale of extended warranties of two to five years, for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Balance at beginning of period	$	27,962	$	23,123
Add current period deferred income	3,929		2,998
Current period recognition of income	(2,332)		(2,003)
Balance at end of period	$	29,559	$	24,118

The outstanding balance of deferred warranty income in the table above is considered a "contract liability," and represents a performance obligation of the Company that we satisfy over the term of the arrangement but for which we have been paid in full at the time the warranty was sold. We expect to recognize $8.6 million of the outstanding contract liability during the remainder of fiscal 2025, $13.6 million in fiscal 2026, and the remaining balance thereafter.

Self-Insurance

The following table reflects our total accrued self-insurance liability, comprised of workers' compensation and health insurance related claims, at the dates indicated:


(in thousands of dollars)	December 28, 2024		September 28, 2024
Current portion	$	4,723	$	5,008
Long-term portion	2,596		2,248
Total accrued self-insurance	$	7,319	$	7,256

The current and long-term portions of the accrued self-insurance liability are reflected in accrued expenses and other liabilities, respectively, on the Condensed Consolidated Balance Sheets.

Shipping and Handling Revenues

Shipping and handling revenues were $5.1 million and $4.7 million for the three months ended December 28, 2024 and December 30, 2023, respectively. The related cost of goods sold was $4.6 million and $4.3 million for the three months ended December 28, 2024 and December 30, 2023, respectively.

Pension (Income) Expense

Components of net periodic pension benefit (income) expense were as follows for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Interest cost	$	1,312	$	1,484
Expected return on plan assets	(1,819)		(1,620)
Amortization of prior loss	70		172
Net periodic pension benefit (income) expense	$	(437)	$	36
Amortization of prior loss, recognized in other comprehensive income	(70)		(172)
Total recognized in net periodic pension benefit (income) expense and other comprehensive income	$	(507)	$	(136)

4. Debt

Term loan borrowings consisted of the following at the dates indicated:


(in thousands of dollars)	December 28, 2024		September 28, 2024
Term loan borrowings, net of deferred financing costs of $1,172 and $1,256, respectively	$	93,828	$	94,994
Less: current portion of long-term debt	5,000		5,000
Long-term debt, net of current portion	$	88,828	$	89,994

Term loan borrowings are recognized on the Condensed Consolidated Balance Sheets at the unpaid principal balance, and are not subject to fair value measurement; however, given the variable rates on the loans, the Company estimates that the unpaid principal balance approximates fair value. If measured at fair value in the financial statements, the term loans would be classified as Level 2 in the fair value hierarchy. At December 28, 2024 and September 28, 2024, $95.0 million and $96.3 million, respectively, were outstanding on the term loans.

At December 28, 2024 and September 28, 2024, the stated interest rates on the term loans were 6.4% and 6.9%, respectively. At December 28, 2024 and September 28, 2024, the weighted-average annual effective interest rates for the term loans were 7.0% and 8.2%, respectively, which include amortization of the deferred financing costs.

At December 28, 2024, $6.7 million of letters of credit were outstanding, which reduces the availability on the revolving line of credit. There were no borrowings outstanding on the Revolving Credit Facility; therefore, the Company would have been able to borrow $143.3 million on the revolving line of credit.

Interest expense on all indebtedness was $1.9 million and $3.6 million for the three months ended December 28, 2024 and December 30, 2023, respectively.

The schedule of remaining principal payments through maturity for the term loans is as follows:


(in thousands of dollars)
Fiscal Year	Principal Payments
2025	$	3,750
2026	5,000
2027	5,000
2028	5,000
2029	5,000
Thereafter	71,250
Total remaining principal payments	$	95,000

5. Income Taxes

Income tax provisions for interim periods are based on estimated annual income tax rates, adjusted to reflect the effects of any significant infrequent or unusual items that are required to be discretely recognized within the current interim period. The effective tax rates in the periods presented are largely based upon the annual forecasted pre-tax earnings mix and allocation of certain expenses in various taxing jurisdictions where the Company conducts its business, primarily in the United States of America ("U.S."). In periods where our pre-tax income approximates or is equal to break-even, the effective tax rates for quarter-to-date and full-year periods may not be meaningful due to discrete period items.

Three Months

The effective tax rate for the three months ended December 28, 2024 was 24.4% and differed from the statutory federal income tax rate of 21%. The increase was primarily due to the impacts from state taxes and certain permanent items on the federal rate, which were partially offset by the impacts from federal and state tax credits (net of valuation allowances) and discrete period items during the quarter.

The effective tax rate for the three months ended December 30, 2023 was 25.9% and differed from the statutory federal income tax rate of 21%. The increase was primarily due to the impacts from state taxes and certain permanent items on the federal rate, which were partially offset by the impacts from federal and state tax credits (net of valuation allowances) and discrete period items during the quarter.

6. Guarantees, Commitments and Contingencies

Litigation

At December 28, 2024, the Company had a number of product liability and other cases pending. Management believes that, considering the Company’s insurance coverage and its intention to vigorously defend its positions, the ultimate resolution of these matters will not have a material adverse effect on the Company’s financial statements.

Environmental

The Company is subject to a variety of environmental regulations relating to the use, storage, discharge and disposal of hazardous materials used in its manufacturing processes. Failure by the Company to comply with present and future regulations could subject it to future liabilities. In addition, such regulations could require the Company to acquire costly equipment or to incur other significant expenses to comply with environmental regulations. The Company is currently not involved in any material environmental proceedings and therefore, management believes that the resolution of pending environmental matters will not have a material adverse effect on the Company’s financial statements.

7. Segment Information

We manage our business in two operating segments: (i) the Bus segment, which includes the manufacturing and assembly of buses to be sold to a variety of customers across the U.S., Canada and in certain limited international markets; and (ii) the Parts segment, which consists primarily of the purchase of parts from third parties to be sold to dealers within the Company’s network and certain large fleet customers. Management evaluates the segments based primarily upon revenues and gross profit, which are reflected in the tables below for the periods presented:


Net sales
	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Bus (1)	$	288,147	$	293,437
Parts (1)	25,725		24,223
Segment net sales	$	313,872	$	317,660

(1) Parts segment revenue includes $1.9 million and $1.6 million for the three months ended December 28, 2024 and December 30, 2023, respectively, related to inter-segment sales of parts that was eliminated by the Bus segment upon consolidation.


Gross profit
	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Bus	$	47,172	$	51,294
Parts	13,145		12,264
Segment gross profit	$	60,317	$	63,558

The following table is a reconciliation of segment gross profit to consolidated income before income taxes for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Segment gross profit	$	60,317	$	63,558
Adjustments:
Selling, general and administrative expenses	(27,275)		(25,602)
Interest expense	(1,915)		(3,631)
Interest income	1,568		1,088
Other income (expense), net	2,916		(1,221)
Loss on debt refinancing	—		(1,558)
Income before income taxes	$	35,611	$	32,634

Sales are attributable to geographic areas based on customer location and were as follows for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
U.S.	$	287,957	$	302,532
Canada	24,603		15,119
Rest of world	1,312		9
Total net sales	$	313,872	$	317,660

8. Revenue

The following table disaggregates revenue by product category for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Diesel buses	$	124,372	$	84,998
Alternative power buses (1)	148,922		195,329
Other (2)	15,487		13,697


Parts	25,091		23,636
Net sales	$	313,872	$	317,660

(1) Includes buses sold with any power source other than diesel (e.g., gasoline, propane, compressed natural gas ("CNG") or electric).

(2) Includes shipping and handling revenue, extended warranty income, surcharges and chassis and bus shell sales.

9. Earnings Per Share

The following table presents the earnings per share computation for the periods presented:


	Three Months Ended
(in thousands except for share data)	December 28, 2024		December 30, 2023
Numerator:
Net income	$	28,722	$	26,150

Denominator:
Weighted-average common shares outstanding	32,227,723		32,170,779
Weighted-average dilutive securities, restricted stock	479,759		145,759
Weighted-average dilutive securities, stock options	249,233		100,170
Weighted-average dilutive securities, warrants	404,225		12,419

Weighted-average shares and dilutive potential common shares (1)	33,360,940		32,429,127

Earnings per share:
Basic earnings per share	$	0.89	$	0.81
Diluted earnings per share	$	0.86	$	0.81

(1) Potentially dilutive securities representing approximately 0.2 million shares of common stock were excluded from the computation of diluted earnings per share for the three months ended December 30, 2023, as their effect would have been antidilutive.

10. Accumulated Other Comprehensive Loss

The following table provides information on changes in accumulated other comprehensive loss ("AOCL") for the periods presented:


	Three Months Ended
(in thousands of dollars)	Defined Benefit Pension Plan		Total AOCL
December 28, 2024
Beginning Balance	$	(26,416)	$	(26,416)

Amounts reclassified and included in earnings	70		70
Total before taxes	70		70
Income taxes	(17)		(17)
Ending Balance December 28, 2024	$	(26,363)	$	(26,363)

December 30, 2023
Beginning Balance	$	(31,884)	$	(31,884)

Amounts reclassified and included in earnings	172		172
Total before taxes	172		172
Income taxes	(41)		(41)
Ending Balance December 30, 2023	$	(31,753)	$	(31,753)

11. Stockholder Transaction Costs

On December 14, 2023, the Company entered into an underwriting agreement with BofA Securities, Inc. and Barclays Capital Inc., as representatives of the several underwriters and American Securities LLC ("Selling Stockholder"), pursuant to which the Selling Stockholder agreed to sell 2,500,000 shares of common stock at a purchase price of $25.10 per share (“Offering”).

The Offering was conducted pursuant to a prospectus supplement, dated December 14, 2023, to the prospectus dated December 22, 2021 included in the Company’s registration statement on Form S-3 (File No. 333-261858) that was initially filed with the SEC on December 23, 2021.

The Offering closed on December 19, 2023. Although the Company did not sell any shares or receive any proceeds from the Offering, it was required to pay certain expenses in connection with the transaction that totaled approximately $1.2 million for the three months ended December 30, 2023. The $1.2 million of expense is included within other income (expense), net on the Condensed Consolidated Statements of Operations for the three months ended December 30, 2023. No such expense was incurred in the three months ended December 28, 2024.

12. Equity Investment in Affiliates

The Company has made investments in the below entities and utilizes the equity method of accounting to record its interest in them as it does not have control to direct the activities that most significantly impact their financial performance based on the shared powers of the venture partners. The carrying amount of the equity method investments is adjusted for any contribution that the Company makes to them as well as for the Company’s proportionate share of net earnings or losses and any dividends received.

Micro Bird Holdings, Inc.

The Company holds a 50% equity interest in Micro Bird Holdings, Inc. ("Micro Bird"), our unconsolidated Canadian joint venture that produces Blue Bird Micro Bird by Girardin Type A buses in Drummondville, Quebec.

In recognizing the Company’s 50% portion of Micro Bird's net income or loss, the Company recorded $2.1 million and $2.0 million in equity in net income of non-consolidated affiliates on the Condensed Consolidated Statements of Operations for the three months ended December 28, 2024 and December 30, 2023, respectively.

In December 2023, Micro Bird paid dividends to all common stockholders, with the Company's proportionate share totaling $3.0 million, gross of required withholding taxes. The dividend was recorded as a reduction in the balance of equity investment in affiliates on the Condensed Consolidated Balance Sheets and is presented as a cash inflow in the operating section of the Condensed Consolidated Statements of Cash Flows. No dividends were paid in the three months ended December 28, 2024.

At December 28, 2024 and September 28, 2024, the carrying value of the Company's investment in Micro Bird included within equity investment in affiliates on the Condensed Consolidated Balance Sheets was $26.6 million and $24.4 million, respectively.

Clean Bus Solutions, LLC

The Company holds a 50% equity interest in Clean Bus Solutions, LLC ("CBS"), our unconsolidated joint venture that provides a fleet-as-a-service ("FaaS") offering using electric school buses manufactured and sold by the Company. The service is offered to qualified customers of the Company by providing them with turnkey electrification solutions, including a wide product range consisting of, among others, electric school buses, financing of electric buses and supporting charging infrastructure, project planning and management, and fleet optimization.

During the three months ended December 28, 2024, the Company made a $0.5 million cash contribution to CBS and during the three months ended December 30, 2023, the Company recorded the $7.4 million fair value of warrants it issued to the joint venture partner as its initial investment in CBS, both of which increased the balance of equity investment in affiliates on the Condensed Consolidated Balance Sheets.

In recognizing the Company’s 50% portion of CBS' net income or loss, the Company recorded $(0.3) million (a loss) in equity in net income of non-consolidated affiliates on the Condensed Consolidated Statements of Operations for the three months ended December 28, 2024, while no amount was recorded in the three months ended December 30, 2023. CBS paid no dividends in either period.

At December 28, 2024 and September 28, 2024, the carrying value of the Company's investment in CBS included within equity investment in affiliates on the Condensed Consolidated Balance Sheets was $7.8 million and $7.7 million, respectively.

13. Stockholders’ Equity

Share Repurchase Program and Common Stock Retirement

On January 31, 2024, the Board of Directors of the Company authorized and approved a share repurchase program for up to $60 million of outstanding shares of the Company’s common stock over a period of 24 months, expiring January 31, 2026. Under the share repurchase program, the Company may repurchase shares through open market purchases, privately negotiated transactions, accelerated share repurchase transactions, block purchases or otherwise in accordance with applicable federal securities laws, including Rule 10b-18 of the Securities Exchange Act of 1934, as amended.

During the three months ended December 28, 2024, the Company repurchased 243,450 shares of its common stock for $10.0 million, pursuant to the share repurchase plan. The Company constructively retired these shares immediately after repurchase, with the $10.0 million amount paid in excess of the $0.0001 par value of each share recorded as a reduction in retained earnings. No such repurchases were made during the three months ended December 30, 2023. The total remaining authorization for future common stock repurchases under the Company's share repurchase program was $40.0 million as of December 28, 2024.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis of financial condition and results of operations of Blue Bird Corporation (the "Company," "Blue Bird," "we," "our," or "us") should be read in conjunction with the Company’s unaudited condensed consolidated financial statements as of and for the three months ended December 28, 2024 and December 30, 2023 and related notes appearing in Part I, Item 1 of this Quarterly Report on Form 10-Q ("Report"). Our actual results may not be indicative of future performance. This discussion and analysis contains forward-looking statements and involves numerous risks and uncertainties, including, but not limited to, those discussed or incorporated by reference in the sections of this Report entitled “Special Note Regarding Forward-Looking Statements” and “Risk Factors.” Actual results may differ materially from those contained in any forward-looking statements. Certain monetary amounts, percentages and other figures included in this Report have been subject to rounding adjustments. Accordingly, figures shown as totals in certain tables may not be the arithmetic aggregation of the figures that precede them, and figures expressed as percentages in the text may not total 100% or, as applicable, when aggregated, may not be the arithmetic aggregation of the percentages that precede them.

Special Note Regarding Forward-Looking Statements

This Report contains forward-looking statements intended to qualify for the safe harbors from liability established by the Private Securities Litigation Reform Act of 1995. 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 the 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,” “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 development 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 include or 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 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 impacted by 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.

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 the reports we file with the Securities and Exchange Commission (“SEC”), specifically the sections entitled “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s fiscal year 2024 Form 10-K, filed with the SEC on November 25, 2024. Other risks and uncertainties are and will be disclosed in the Company’s prior and future SEC filings. The following information should be read in conjunction with the financial statements included in the Company’s fiscal year 2024 Form 10-K, filed with the SEC on November 25, 2024.

Available Information

We are subject to the reporting and information requirements of the Securities Exchange Act of 1934, as amended (the “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 available free of charge on our website (http://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 (http://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.

Executive Overview

Blue Bird is the leading independent designer and manufacturer of school buses. Our longevity and reputation in the school bus industry have made Blue Bird an iconic American brand. We distinguish ourselves from our principal competitors by dedicating our focus to the design, engineering, manufacture and sale of school buses, and related parts. As the only principal manufacturer of chassis and body production specifically designed for school bus applications in the United States of America ("U.S."), Blue Bird is recognized as an industry leader for school bus innovation, safety, product quality/reliability/durability, efficiency, and lower operating costs. In addition, Blue Bird is the market leader in alternative powered product offerings with its propane powered, gasoline powered and all-electric powered school buses.

Blue Bird sells its buses and parts through an extensive network of U.S. and Canadian dealers that, in their territories, are exclusive to Blue Bird on Type C and Type D school buses. Blue Bird also sells directly to major fleet operators, the U.S. Government, state governments, and authorized dealers in certain limited foreign countries.

Throughout this Report, we refer to the fiscal year ending September 27, 2025 as "fiscal 2025," the fiscal year ended September 28, 2024 as "fiscal 2024," the fiscal year ended September 30, 2023 as "fiscal 2023," the fiscal year ended October 1, 2022 as “fiscal 2022” and the fiscal year ended October 2, 2021 as "fiscal 2021." There will be or were 52 weeks in fiscal 2025 and fiscal 2024. The first quarters of fiscal 2025 and fiscal 2024 both included 13 weeks.

Impacts of Supply Chain Constraints on Our Business

During the second half of fiscal 2021, the Company, and automotive industry as a whole, began experiencing significant supply chain constraints that arose subsequent to the novel coronavirus pandemic known as "COVID-19." Additionally, the already challenged global supply chain for automotive parts was further impacted, including continuing escalating inventory purchase costs, by additional stress resulting from Russia’s invasion of Ukraine in February 2022. These supply chain disruptions had a significant adverse impact on our operations and results during the second half of fiscal 2021 and all of fiscal 2022. Specifically, they resulted in higher purchasing costs, including freight costs incurred to expedite receipt of critical components, increased manufacturing inefficiencies and our inability to complete the production of buses to fulfill sales orders, that outpaced the sales prices that we charged for the buses we sold during these periods.

During fiscal 2023 and fiscal 2024, there were slight improvements in the supply chain's ability to deliver the parts and components necessary to support our production operations, resulting in increased (i) manufacturing efficiencies and (ii) production of buses to fulfill sales orders. However, the higher costs charged by suppliers to procure inventory continued over these same periods and adversely impacted our operations and results. However, the cumulative increases in sales prices we charged for our buses outpaced the higher costs we paid to procure inventory, resulting in gross profit and gross margin in fiscal 2023 and fiscal 2024 that were consistent with, or better than, historic levels experienced prior to the COVID-19 pandemic.

Supply chain disruptions continued into the first quarter of fiscal 2025 as there were still occasional shortages of certain critical components as well as ongoing increases in raw materials costs, both of which impacted our business and operations by limiting the number and/or mix of school buses that we could produce and sell as well as increasing the costs to manufacture buses. Nonetheless, the lessons learned, and resulting actions taken, by management over the past three fiscal years allowed the Company to better navigate these supply chain challenges and consistently produce buses to fulfill sales orders. Ongoing improvements in manufacturing operations, when coupled with periodic pricing actions taken by the Company to ensure that the increased sales prices charged for buses keep pace with increased costs to procure inventory to produce the buses, allowed the Company to report gross profit and gross margin that are materially consistent with those reported in fiscal 2024.

New bus orders during fiscal 2024 and continuing into fiscal 2025 remained robust, primarily due to a combination of (i) pent-up demand resulting from the cumulative effect of the COVID-19 pandemic when many school systems conducted virtual learning and (ii) the challenged global supply chain for automotive parts that hindered the school bus industry's ability to produce and sell buses as discussed previously above. Accordingly, the Company's backlog remained strong at approximately 4,800 units and 4,400 units as of September 28, 2024 and December 28, 2024, respectively, despite it selling 9,000 units in fiscal 2024 and over 2,100 units in the first quarter of fiscal 2025.

In general, management believes that supply chain disruptions, including those resulting from current or future military conflicts, could continue in future periods and could materially impact our results if we are unable to i) obtain parts and supplies in sufficient quantities to meet our production needs and/or ii) pass along rising costs to our customers. They have resulted, and could continue to result, in significant economic disruption and have adversely affected our business. They could adversely impact our business for the remainder of fiscal 2025 and perhaps beyond. Significant uncertainty exists concerning the magnitude of the impact and duration of ongoing supply chain constraints and their potential impact on the overall economy, both within the U.S and globally. Accordingly, the magnitude and duration of any production and supply chain disruptions and their related financial impacts on our business cannot be estimated at this time.

The impacts from supply chain constraints on the Company's business and operations beginning during the second half of fiscal 2021 and continuing into fiscal 2025 negatively affected our inventory procurement costs, gross profit, income and cash flows. We continue to monitor and assess the ability of suppliers to maintain operations and to provide parts and supplies in sufficient quantities to meet our production needs and our ability to maintain continuous production during the remainder of fiscal 2025 and beyond. See PART I, Item 1.A. "Risk Factors," of our fiscal 2024 Form 10-K, filed with the SEC on November 25, 2024, for a discussion of the material risks we believe we face particularly related to supply chain disruptions and related constraints.

Critical Accounting Policies and Estimates, Recent Accounting Pronouncements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Blue Bird evaluates its estimates on an ongoing basis, based on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Application of these accounting policies involves the exercise of judgment and use of assumptions as to future uncertainties and, as a result, actual results could differ from these estimates.

The Company’s accounting policies that we believe are the most critical to aid in fully understanding and evaluating our reported financial results are described in the Company’s fiscal 2024 Form 10-K, filed with the SEC on November 25, 2024, under the caption “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Critical Accounting Policies and Estimates,” which description is incorporated herein by reference. Our senior management has reviewed these critical accounting policies and related disclosures and determined that there were no significant changes in our critical accounting policies during the three months ended December 28, 2024.

Recent Accounting Pronouncements

See Note 2 of Notes to Condensed Consolidated Financial Statements (Unaudited) included in Part I, Item 1 of this Report for a discussion of new and/or recently adopted accounting pronouncements, as applicable.

Factors Affecting Our Revenues

Our revenues are driven primarily by the following factors:

•Property tax revenues. Property tax revenues are one of the major sources of funding for school districts, and therefore new school buses. Property tax revenues are a function of land and building prices, relying on assessments of property value by state or county assessors and millage rates voted by the local electorate.

•Student enrollment and delivery mechanisms for learning. Increases or decreases in the number of school bus riders have a direct impact on school district demand. Evolving protocols for public health concerns and/or continued technological advancements could shift the future form of educational delivery away from in-person learning on a more permanent basis, with increased remote learning reasonably expected to decrease the number of school bus riders.

•Revenue mix. We are able to charge more for certain of our products (e.g., Type C propane powered school buses, electric powered buses, Type D buses, and buses with higher option content) than other products. The mix of products sold in any fiscal period can directly impact our revenues for the period.

•Strength of the dealer network. We rely on our dealers, as well as a small number of major fleet operators, to be the direct point of contact with school districts and their purchasing agents. An effective dealer is capable of expanding revenues within a given school district by matching that district’s needs to our capabilities, offering options that would not otherwise be provided to the district.

•Pricing. Our products are sold to school districts throughout the U.S. and Canada. Each state and each Canadian province has its own set of regulations that governs the purchase of products, including school buses, by their school districts. We and our dealers must navigate these regulations, purchasing procedures, and the districts’ specifications in order to reach mutually acceptable price terms. Pricing may or may not be favorable to us, depending upon a number of factors impacting purchasing decisions. Additionally, in certain cases, prices originally quoted with dealers and school districts may have become less favorable, or more unfavorable, to us given increasing inventory costs between the time the sales order was contractually agreed upon and the bus is built and delivered as a result of ongoing supply chain disruptions and general inflationary pressures.

•Buying patterns of major fleets. Major fleets regularly compete against one another for existing accounts. Fleets are also continuously trying to win the business of school districts that operate their own transportation services. These activities can have either a positive or negative impact on our sales, depending on the brand preference of the fleet that wins the business. Major fleets also periodically review their fleet sizes and replacement patterns due to funding availability as well as the profitability of existing routes. These actions can impact total purchases by fleets in a given year.

•Seasonality. In the fiscal years preceding the 2020 COVID-19 pandemic, our sales were subject to seasonal variation based on the school calendar with the peak season during our third and fourth fiscal quarters. Sales during the third and fourth fiscal quarters were typically greater than the first and second fiscal quarters due to the desire of municipalities to have any new buses that they ordered available to them at the beginning of the new school year. Since 2020, with the COVID-19 pandemic impacting the demand for Company products and the impact of the subsequent supply chain constraints hindering the Company's ability to produce and sell buses as discussed previously above, seasonality has become unpredictable. Seasonality and variations from historical seasonality have impacted the comparison of results between fiscal periods.

•Inflation. As discussed previously above, supply chain disruptions developing subsequent to the COVID-19 pandemic and Russia's invasion of Ukraine have significantly increased our inventory purchase costs, including freight costs incurred to deliver critical components, reflected in cost of goods sold during all of fiscal 2022 and continuing, to a lesser extent, into fiscal 2023, fiscal 2024 and the first quarter of fiscal 2025. In response, the Company announced a number of sales price increases over this same period that applied to new sales orders and, in one limited circumstance, partially applied to backlog orders that were both intended to mitigate the impact of rising purchase costs on our operations and results. These cumulative price increases have had a significant, positive impact on sales and gross profit during fiscal 2023, fiscal 2024 and continuing into the first quarter of fiscal 2025.

Factors Affecting Our Expenses and Other Items

Our expenses and other line items on our Condensed Consolidated Statements of Operations are principally driven by the following factors:

•Cost of goods sold. The components of our cost of goods sold consist of material costs (principally powertrain components, steel and rubber, as well as aluminum and copper) including freight costs, labor expense, and overhead. Our cost of goods sold may vary from period to period due to changes in sales volume and/or mix, efforts by certain suppliers to pass through the economics associated with key commodities, fluctuations in freight costs, design changes with respect to specific components, design changes with respect to specific bus models, wage increases for plant labor, productivity of plant labor, delays in receiving materials and other logistical problems, and the impact of overhead items such as utilities.

•Selling, general and administrative expenses. Our selling, general and administrative expenses include costs associated with our selling and marketing efforts, engineering, centralized finance, human resources, purchasing, information technology services, along with other administrative matters and functions. In most instances, other than direct costs associated with sales and marketing programs, the principal component of these costs is salary expense. Changes from period to period are typically driven by the number of our employees, as well as by merit increases provided to experienced personnel.

•Interest expense. Our interest expense relates to costs associated with our debt instruments and reflects both the amount of indebtedness and the interest rate that we are required to pay on our debt. Interest expense also includes unrealized gains or losses from interest rate hedges, if any, and changes in the fair value of interest rate derivatives not designated in hedge accounting relationships, if any, as well as expenses related to debt guarantees, if any.

•Income taxes. We make estimates of the amounts to recognize for income taxes in each tax jurisdiction in which we operate. In addition, provisions are established for withholding taxes related to the transfer of cash between jurisdictions and for uncertain tax positions taken, if any.

•Other expense/income, net. This balance includes periodic pension expense or income as well as gains or losses on foreign currency, if any. Other amounts not associated with operating expenses may also be included in this balance.

•Equity in net income or loss of non-consolidated affiliates. We include in this line item our 50% share of net income or loss from our investments in Micro Bird Holdings, Inc. and Clean Bus Solutions, LLC, our unconsolidated joint ventures.

Key Non-GAAP Financial Measures We Use to Evaluate Our Performance

The condensed consolidated financial statements included in this Report in Item 1. "Financial Statements (Unaudited)" are prepared in conformity with U.S. GAAP. This Report also includes the following financial measures that are not prepared in accordance with U.S. GAAP ("non-GAAP"): “Adjusted EBITDA;” “Adjusted EBITDA Margin;” and “Free Cash Flow.” Adjusted EBITDA and Free Cash Flow are financial metrics that are utilized by management and the Board of Directors, as and when applicable, to determine (a) the annual cash bonus payouts, if any, to be made to certain employees based upon the terms of the Company’s Management Incentive Plan, and (b) whether the performance criteria have been met for the vesting of certain equity awards granted annually to certain members of management based upon the terms of the Company’s Omnibus Equity Incentive Plan. Additionally, consolidated EBITDA, which is an adjusted EBITDA metric defined by our Credit Agreement (defined below) that could differ from Adjusted EBITDA discussed above as the adjustments to the calculations are not uniform, is used to determine the Company's ongoing compliance with several financial covenant requirements, including being utilized in the denominator of the calculation of the Total Net Leverage Ratio ("TNLR"), which is also utilized in determining the interest rate we pay on borrowings under our Credit Agreement (defined below). Accordingly, management views these non-GAAP financial metrics as key for the above purposes and as a useful way to evaluate the performance of our operations as discussed further below.

Adjusted EBITDA is defined as net income or loss prior to interest income; interest expense including the component of operating lease expense (which is presented as a single operating expense in selling, general and administrative expenses in our U.S. GAAP financial statements) that represents interest expense on lease liabilities; income taxes; and depreciation and amortization including the component of operating lease expense (which is presented as a single operating expense in selling, general and administrative expenses in our U.S. GAAP financial statements) that represents amortization charges on right-of-use lease assets; as adjusted for certain non-cash charges or credits that we may record on a recurring basis such as share-based compensation expense and unrealized gains or losses on certain derivative financial instruments as well as certain charges such as (i) transaction related costs or (ii) discrete expenses related to major cost cutting and/or operational transformation initiatives. While certain of the charges that are added back in the Adjusted EBITDA calculation, such as transaction related costs and major cost cutting and/or operational transformation initiatives, represent operating expenses that may be recorded in more than one annual period, the significant project or transaction giving rise to such expenses is not considered to be indicative of the Company’s normal operations. Accordingly, we believe that

these, as well as the other credits and charges that comprise the amounts utilized in the determination of Adjusted EBITDA described above, should not be used in evaluating the Company’s ongoing annual operating performance.

We define Adjusted EBITDA Margin as Adjusted EBITDA as a percentage of net sales. Adjusted EBITDA and Adjusted EBITDA Margin are not measures of performance defined in accordance with U.S. GAAP. The measures are used as a supplement to U.S. GAAP results in evaluating certain aspects of our business, as described below.

We believe that Adjusted EBITDA and Adjusted EBITDA Margin are useful to investors in evaluating our performance because the measures consider the performance of our ongoing operations, excluding decisions made with respect to capital investment, financing, and certain other significant initiatives or transactions as outlined in the preceding paragraphs. We believe the non-GAAP measures offer additional financial metrics that, when coupled with the U.S. GAAP results and the reconciliation to U.S. GAAP results, provide a more complete understanding of our results of operations and the factors and trends affecting our business.

Adjusted EBITDA and Adjusted EBITDA Margin should not be considered as alternatives to net income or loss as an indicator of our performance or as alternatives to any other measure prescribed by U.S. GAAP as there are limitations to using such non-GAAP measures. Although we believe that Adjusted EBITDA and Adjusted EBITDA Margin may enhance an evaluation of our operating performance based on recent revenue generation and product/overhead cost control because they exclude the impact of prior decisions made about capital investment, financing, and certain other significant initiatives or transactions, (i) other companies in Blue Bird’s industry may define Adjusted EBITDA and Adjusted EBITDA Margin differently than we do and, as a result, they may not be comparable to similarly titled measures used by other companies in Blue Bird’s industry, and (ii) Adjusted EBITDA and Adjusted EBITDA Margin exclude certain financial information that some may consider important in evaluating our performance.

We compensate for these limitations by providing disclosure of the differences between Adjusted EBITDA and U.S. GAAP results, including providing a reconciliation to U.S. GAAP results, to enable investors to perform their own analysis of our ongoing operating results.

Our measure of Free Cash Flow is used in addition to and in conjunction with results presented in accordance with U.S. GAAP and it should not be relied upon to the exclusion of U.S. GAAP financial measures. Free Cash Flow reflects an additional way of evaluating our liquidity that, when viewed with our U.S. GAAP results, provides a more complete understanding of factors and trends affecting our cash flows. We strongly encourage investors to review our financial statements and publicly-filed reports in their entirety and not to rely on any single financial measure.

We define Free Cash Flow as total cash provided by/used in operating activities as adjusted for net cash paid for the acquisition of fixed assets and intangible assets. We use Free Cash Flow, and ratios based on Free Cash Flow, to conduct and evaluate our business because, although it is similar to cash flow from operations, we believe it is a more conservative measure of cash flow since purchases of fixed assets and intangible assets are a necessary component of ongoing manufacturing operations. Accordingly, we expect Free Cash Flow to be less than operating cash flows.

Our Segments

We manage our business in two operating segments, which are also our reportable segments: (i) the Bus segment, which involves the design, engineering, manufacture and sale of school buses and extended warranties; and (ii) the Parts segment, which includes the sale of replacement bus parts. Financial information is reported on the basis that it is used internally by the chief operating decision maker (“CODM”) in evaluating segment performance and deciding how to allocate resources to segments. The President and Chief Executive Officer of the Company has been identified as the CODM. Management evaluates the segments based primarily upon revenues and gross profit.

Consolidated Results of Operations for the Three Months Ended December 28, 2024 and December 30, 2023:


	Three Months Ended
(in thousands of dollars)	December 28, 2024			December 30, 2023
Net sales	$	313,872		$	317,660
Cost of goods sold	253,555			254,102
Gross profit	$	60,317		$	63,558
Operating expenses
Selling, general and administrative expenses	27,275			25,602
Operating profit	$	33,042		$	37,956
Interest expense	(1,915)			(3,631)
Interest income	1,568			1,088
Other income (expense), net	2,916			(1,221)
Loss on debt refinancing	—			(1,558)
Income before income taxes	$	35,611		$	32,634
Income tax expense	(8,693)			(8,446)
Equity in net income of non-consolidated affiliates	1,804			1,962


Net income	$	28,722		$	26,150
Other financial data:
Adjusted EBITDA	$	45,753		$	47,604
Adjusted EBITDA margin	14.6		%	15.0		%

The following provides the results of operations of Blue Bird’s two reportable segments:


(in thousands of dollars)	Three Months Ended
Net Sales by Segment	December 28, 2024		December 30, 2023
Bus	$	288,147	$	293,437
Parts	25,725		24,223
Total	$	313,872	$	317,660

Gross Profit (Loss) by Segment
Bus	$	47,172	$	51,294
Parts	13,145		12,264
Total	$	60,317	$	63,558

Net sales. Net sales were $313.9 million for the first quarter of fiscal 2025, a decrease of $3.8 million, or 1.2%, compared to $317.7 million for the first quarter of fiscal 2024. The decrease in net sales is primarily due to Bus customer and product mix changes that were partially offset by a slight increase in Parts sales.

Bus sales decreased $5.3 million, or 1.8%, reflecting a 1.9% decrease in average sales price per unit. In the first quarter of fiscal 2025, 2,130 units were booked compared to 2,129 units booked for the same period in fiscal 2024. The small decrease in unit price for the first quarter of fiscal 2025 compared to the same period in fiscal 2024 was primarily due to customer and product mix changes, although both quarters were negatively impacted by supply chain constraints that limited the Company's ability to produce and deliver buses due to shortages of critical components.

Parts sales increased $1.5 million, or 6.2%, for the first quarter of fiscal 2025 compared to the first quarter of fiscal 2024. This increase is primarily attributed to price increases, driven by ongoing inflationary pressures, as well as higher fulfillment volumes and slight variations due to product and channel mix.

Cost of goods sold. Total cost of goods sold was $253.6 million for the first quarter of fiscal 2025, a decrease of $0.5 million, or 0.2%, compared to $254.1 million for the first quarter of fiscal 2024. As a percentage of net sales, total cost of goods sold increased from 80.0% to 80.8%, primarily due to the impact of ongoing inflationary pressures relating to the procurement of inventory as well as finalizing the union contract in May 2024, which increased the labor costs for our covered production and supply chain employees.

Bus segment cost of goods sold decreased $1.2 million, or 0.5%, for the first quarter of fiscal 2025 compared to the same period in fiscal 2024. The decrease was primarily driven by customer and product mix changes as the average cost of goods sold per unit for the first quarter of fiscal 2025 was 0.5% lower compared to the first quarter of fiscal 2024. However, such decrease was partially offset by increases in manufacturing costs attributable to a) increased raw materials costs resulting from ongoing inflationary pressures, b) ongoing supply chain disruptions that resulted in higher purchase costs for components and c) higher labor costs resulting from finalizing the union contract in May 2024.

The $0.6 million, or 5.2%, increase in Parts segment cost of goods sold for the first quarter of fiscal 2025 compared to the first quarter of fiscal 2024 was primarily due to increased purchased parts costs, driven by ongoing inflationary pressures and supply chain disruptions, as well as slight variations due to product and channel mix.

Operating profit. Operating profit was $33.0 million for the first quarter of fiscal 2025, a decrease of $4.9 million compared to operating profit of $38.0 million for the first quarter of fiscal 2024. Profitability was primarily impacted by a decrease of $3.2 million in gross profit as outlined in the revenue and cost of goods sold discussions above. It was also impacted by an increase of $1.7 million in selling, general and administrative expenses, primarily due to an increase in labor costs.

Interest expense. Interest expense was $1.9 million for the first quarter of fiscal 2025, a decrease of $1.7 million, or 47.3%, compared to $3.6 million for the first quarter of fiscal 2024. The decrease was primarily attributable to a decrease in the stated term loan interest rate from 8.5% at December 30, 2023 to 6.4% at December 28, 2024, as well as lower outstanding borrowings in the first quarter of fiscal 2025 compared to the first quarter of fiscal 2024.

Other income (expense), net. Other income, net was $2.9 million for the first quarter of fiscal 2025, an increase of $4.1 million, or 338.8%, compared to $1.2 million of other expense, net for the same period in fiscal 2024.

During the first quarter of fiscal 2025, the Company recorded pension income of approximately $0.4 million compared with pension expense of less than $0.1 million for the same period in fiscal 2024.

Additionally, during the first quarter of fiscal 2025, the Company sold certain state emissions credits that it was not projecting to use for approximately $2.6 million, with no similar income recorded during the first quarter of fiscal 2024. The proceeds from this sale were recorded in other income (expense), net in the Condensed Consolidated Statements of Operations as this transaction is not indicative of our normal revenue generating activities.

Finally, on December 14, 2023, the Company entered into an underwriting agreement with BofA Securities, Inc. and Barclays Capital Inc., as representatives of the several underwriters and American Securities LLC ("Selling Stockholder"), pursuant to which the Selling Stockholder agreed to sell 2,500,000 shares of common stock at a purchase price of $25.10 per share ("Offering"). The Offering was conducted pursuant to a prospectus supplement, dated December 14, 2023, to the prospectus, dated December 22, 2021, included in the Company’s registration statement on Form S-3 (File No. 333-261858) that was initially filed with the SEC on December 23, 2021.

Income taxes. Income tax expense was $8.7 million for the first quarter of fiscal 2025 compared to $8.4 million for the same period in fiscal 2024.

Adjusted EBITDA. Adjusted EBITDA was $45.8 million, or 14.6% of net sales, for the first quarter of fiscal 2025, a decrease of $1.9 million, or 3.9%, compared to $47.6 million, or 15.0% of net sales, for the first quarter of fiscal 2024. The decrease primarily relates to the $4.9 million decrease in operating profit as a result of the factors discussed above, which was partially offset by the $2.9 million of other income, net recorded during the first quarter of fiscal 2025 discussed above.

The following table sets forth a reconciliation of net income to Adjusted EBITDA for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024			December 30, 2023
Net income	$	28,722		$	26,150
Adjustments:
Interest expense, net (1)	433			2,655
Income tax expense	8,693			8,446
Depreciation, amortization, and disposals (2)	4,243			4,210

Share-based compensation expense	2,506			2,051

Stockholder transaction costs	—			1,221
Loss on debt refinancing	—			1,558
Micro Bird Holdings, Inc. total interest expense, net; income tax expense or benefit; depreciation expense and amortization expense	1,156			1,395
Other	—			(82)
Adjusted EBITDA	$	45,753		$	47,604
Adjusted EBITDA margin (percentage of net sales)	14.6		%	15.0		%

(1) Includes $0.1 million for both fiscal periods, representing interest expense on operating lease liabilities, which are a component of lease expense and presented as a single operating expense in selling, general and administrative expenses on our Condensed Consolidated Statements of Operations.

(2) Includes $0.4 million and $0.6 million for the three months ended December 28, 2024 and December 30, 2023, respectively, representing amortization charges on right-of-use lease assets, which are a component of lease expense and presented as a single operating expense in selling, general and administrative expenses on our Condensed Consolidated Statements of Operations.

Liquidity and Capital Resources

The Company’s primary sources of liquidity are cash generated from its operations, available cash and cash equivalents and borrowings under its revolving credit facility. At December 28, 2024, the Company had $136.1 million of available cash (net of outstanding checks) and $143.3 million of additional borrowings available under the revolving line of credit portion of its credit facility. The Company’s revolving line of credit is available for working capital requirements, capital expenditures and other general corporate purposes.

Credit Agreement

On November 17, 2023 (the “Closing Date”), Blue Bird Body Company ("Borrower"), a wholly-owned subsidiary of Blue Bird Corporation, executed a $250.0 million five-year credit agreement with Bank of Montreal, acting as administrative agent and an issuing bank; several joint lead arranger partners and issuing banks, including Bank of America; and a syndicate of other lenders (the "Credit Agreement").

The credit facilities provided for under the Credit Agreement consist of a term loan facility in an aggregate initial principal amount of $100.0 million (the “Term Loan Facility”) and a revolving credit facility with aggregate commitments of $150.0 million. The revolving credit facility includes a $25.0 million letter of credit sub-facility and $5.0 million swingline sub-facility (the “Revolving Credit Facility,” and together with the Term Loan Facility, each a “Credit Facility” and collectively, the “Credit Facilities”).

A minimum of $100.0 million of additional term loans and/or revolving credit commitments may be incurred under the Credit Agreement, subject to certain limitations as set forth in the Credit Agreement, and which additional loans and/or commitments would require further commitments from existing lenders or from new lenders.

Borrower has the right to prepay the loans outstanding under the Credit Facilities without premium or penalty (subject to customary breakage costs, if applicable). Additionally, proceeds from asset sales, condemnation, casualty insurance and/or debt issuances (in certain circumstances) are required to be used to prepay borrowings outstanding under the Credit Facilities. Borrowings under the Term Loan Facility, which were made at the Closing Date, may not be reborrowed once they are repaid while borrowings under the Revolving Credit Facility may be repaid and reborrowed from time to time at our election.

The Term Loan Facility is subject to amortization of principal, payable in equal quarterly installments on the last day of each fiscal quarter, which commenced on March 30, 2024, with 5.0% of the $100.0 million aggregate principal amount of all initial term loans outstanding at the Closing Date payable each year prior to the maturity date of the Term Loan Facility. The remaining initial

aggregate principal amount outstanding under the Term Loan Facility, as well as any outstanding borrowings under the Revolving Credit Facility, will be payable on the November 17, 2028 maturity date of the Credit Agreement.

The Credit Facilities are guaranteed by all of the Company’s wholly-owned domestic restricted subsidiaries (subject to customary exceptions) and are secured by a security agreement which pledges a lien on virtually all of the assets of Borrower, the Company and the Company’s other wholly-owned domestic restricted subsidiaries, other than any owned or leased real property and subject to customary exceptions.

The $100.0 million of Term Loan Facility proceeds and $36.2 million of Revolving Credit Facility proceeds that were borrowed on the Closing Date were used to pay (i) the $131.8 million of term loan indebtedness outstanding under the previous credit agreement ("Amended Credit Agreement"), (ii) interest and commitment fees accrued under the Amended Credit Agreement through the Closing Date and (iii) transaction costs associated with the consummation of the Credit Agreement.

Under the terms of the Credit Agreement, Borrower, the Company and the Company’s other wholly-owned domestic restricted subsidiaries are subject to customary affirmative and negative covenants and events of default for facilities of this type (with customary grace periods, as applicable, and lender remedies).

Borrowings under the Credit Facilities bear interest, at our option, at (i) base rate ("ABR") or (ii) the Secured Overnight Financing Rate as administered by the Federal Reserve Bank of New York ("SOFR") plus 0.10%, plus an applicable margin depending on the TNLR (which is defined in the Credit Agreement as the ratio of consolidated net debt to consolidated EBITDA on a trailing four quarter basis) of the Company as follows:


Level	TNLR	ABR Loans	SOFR Loans
I	Less than 1.00x	0.75%	1.75%
II	Greater than or equal to 1.00x and less than 1.50x	1.50%	2.50%
III	Greater than or equal to 1.50x and less than 2.25x	2.00%	3.00%
IV	Greater than or equal to 2.25x	2.25%	3.25%

Pricing on the Closing Date was set at Level III until receipt of the financial information and related compliance certificate for the first fiscal quarter ending after the Closing Date, with pricing as of December 28, 2024 set at Level I.

Borrower is also required to pay lenders an unused commitment fee of between 0.25% and 0.45% per annum on the undrawn commitments under the Revolving Credit Facility, depending on the TNLR, quarterly in arrears.

The Credit Agreement also includes a requirement that the Company comply with the following financial covenants on the last day of each fiscal quarter through maturity: (i) a pro forma TNLR of not greater than 3.00:1.00 and (ii) a pro forma fixed charge coverage ratio (as defined in the Credit Agreement) of not less than 1.20:1.00.

Detailed descriptions of the Amended Credit Agreement are set forth under “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Liquidity and Capital Resources” contained in the Company’s Annual Report on Form 10-K for the fiscal year ended September 28, 2024, filed with the SEC on November 25, 2024.

At December 28, 2024, Borrower and the guarantors under the Credit Agreement were in compliance with all covenants.

Short-Term and Long-Term Liquidity Requirements

Our ability to make principal and interest payments on borrowings under our Credit Facilities, as applicable, and our ability to fund planned capital expenditures will depend on our ability to generate cash in the future, which, to a certain extent, is subject to general economic, financial, competitive, regulatory and other conditions. Based on the current level of operations, we believe that our existing cash balances and expected cash flows from operations will be sufficient to meet our operating requirements for at least the next 12 months.

To increase our liquidity in future periods, we could pursue raising additional capital via an equity or debt offering utilizing a currently effective "shelf" registration statement. However, we can offer no assurance that we would be successful in raising this additional capital, which could also lead to increased expense and larger up-front fees when compared with our historical financial statements.

Seasonality

Historically, our business has been highly seasonal with school districts buying their new school buses so that they will be available for use on the first day of the school year, typically in mid-August to early September. This has, in fiscal years prior to the COVID-19 pandemic, resulted in our third and fourth fiscal quarters representing our two busiest quarters from a sales and production perspective,

the latter ending on the Saturday closest to September 30. Our quarterly results of operations, cash flows, and liquidity have historically been, and are likely to be in future periods, impacted by seasonal patterns. Working capital has historically been a significant use of cash during the first fiscal quarter due to planned shutdowns and a significant source of cash generation in the fourth fiscal quarter. With the COVID-19 pandemic and subsequent supply chain constraints, seasonality and working capital trends have become unpredictable. Seasonality and variations from historical seasonality have impacted the comparison of working capital and liquidity results between fiscal periods.

Cash Flows

The following table sets forth general information derived from our Condensed Consolidated Statements of Cash Flows:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Cash, cash equivalents and restricted cash at beginning of period	$	127,687	$	78,988
Total cash provided by operating activities	26,410		217
Total cash used in investing activities	(5,094)		(2,904)
Total cash (used in) provided by financing activities	(12,884)		995
Change in cash, cash equivalents and restricted cash	$	8,432	$	(1,692)
Cash, cash equivalents and restricted cash at end of period	$	136,119	$	77,296

Total cash provided by operating activities

Cash flows provided by operating activities totaled $26.4 million for the three months ended December 28, 2024, an increase of $26.2 million from the $0.2 million of cash flows provided by operating activities during the three months ended December 30, 2023.

The increase primarily resulted from the effect of net changes in operating assets and liabilities that positively impacted operating cash flows by $30.7 million during the three months ended December 28, 2024 when compared with the three months ended December 30, 2023. The primary drivers in this category were favorable changes in accounts receivable and accounts payable of $43.6 million and $17.6 million, respectively, as follows:

•A shift in our customer mix resulted in an increase in the accounts receivable balance at the end of fiscal 2024 when compared with the end of fiscal 2023. Specifically, we had a significant increase in fleet revenue towards the end of fiscal 2024 relating to school buses that were delivered to coincide with the start of the new school year, with such revenue representing the majority of sales we make on credit. During the first quarter of fiscal 2025, the accounts receivable balances relating to fiscal 2024 fleet revenue were collected, representing a significant cash inflow (a large source of cash). There was no similar activity during the first quarter of fiscal 2024.

•During fiscal 2023, inflationary pressures and supply chain disruptions significantly increased our purchase costs for components and freight, which, when coupled with increased production and sales volumes during the fiscal year, resulted in a significant increase in the accounts payable balance at the end of fiscal 2023. Although inflationary pressures continued during the first quarter of fiscal 2024, they were smaller when compared to fiscal 2023. This factor, when coupled with our production and sales volumes largely stabilizing during the period, resulted in a significant decrease in the accounts payable balance as of December 30, 2023 when compared with the end of fiscal 2023 (a large use of cash). Although inflationary pressures continued into the first quarter of fiscal 2025, they were relatively small when compared to fiscal 2024. This factor, when coupled with our production and sales volumes remaining relatively consistent in the first quarters of fiscal 2025 and 2024, resulted in a small decrease in the accounts payable balance as of December 28, 2024 when compared with the end of fiscal 2024, representing a significantly smaller use of cash when compared with the first quarter of fiscal 2024.

The above favorable changes were partially offset by unfavorable changes in inventory and other assets of $28.2 million and $6.1 million, respectively, as follows:

•We had a large increase in the balance of our inventory during the first quarter of fiscal 2025 when compared with the first quarter of fiscal 2024 (an increase in the use of cash). Specifically, the bus orders that we produced during the first quarter of fiscal 2025 contained a higher mix of units for certain customers, primarily fleet and specific governmental customers, for which the sales cycle is longer when compared with sales to dealers, resulting in a significant increase in units in finished goods inventory as of December 28, 2024 when compared with December 30, 2023. Additionally, at the end of the first quarter of fiscal 2025, we elected to strategically acquire larger quantities of certain critical components that have longer lead times and could impact our production schedule in future periods if not manufactured by our suppliers and delivered to us in a timely manner, with no similar activity in the first quarter of fiscal 2024. This purchasing activity resulted in a large increase in our

raw materials inventory as of December 28, 2024 when compared with December 30, 2023. There was not a corresponding increase in accounts payable for this activity in the first quarter of fiscal 2025 as we had not received the inventory as of the end of the quarter as our manufacturing and supply chain operations were closed for planned maintenance the last week in December, so we recorded the obligation relating to the purchase of this inventory within accrued expenses. Additionally, there was not a corresponding large increase in accrued expenses in the first quarter of fiscal 2025 as the increase for the strategic acquisition of inventory discussed above was largely offset by other activity, including a decrease in the balance of bonuses accrued as of the end of fiscal 2024 that were paid in the first quarter of fiscal 2025.

•The changes in other assets were primarily driven by larger increases in certain prepaid assets (a use of cash), including prepaid software contracts and insurance premiums, in the first quarter of fiscal 2025 compared to the first quarter of fiscal 2024 given the continued increases in the costs of these services.

Total cash used in investing activities

Cash flows used in investing activities totaled $5.1 million for the three months ended December 28, 2024 as compared to $2.9 million for the three months ended December 30, 2023. The $2.2 million increase was primarily due to an increase in spending on fixed assets, as increasing recent profitability has allowed for more capital spending.

Total cash (used in) provided by financing activities

Cash flows used in financing activities totaled $12.9 million for the three months ended December 28, 2024 as compared to $1.0 million provided by financing activities for the three months ended December 30, 2023. The $13.9 million decrease between fiscal periods was primarily attributable to $10.0 million in purchases of Company stock in the first quarter of fiscal 2025, with no similar activity in the same period in fiscal 2024. Additionally, as a result of executing the Credit Agreement in the three months ended December 30, 2023 with no similar activity in three months ended December 28, 2024, there was a $5.7 million net decrease in proceeds from borrowings under the Credit Agreement, which was partially reduced by the $3.1 million of costs we incurred in completing the debt refinancing in the first quarter of fiscal 2024.

Free cash flow

Management believes the non-GAAP measurement of Free Cash Flow, defined as net cash provided by operating activities less cash paid for fixed assets and acquired intangible assets, fairly represents the Company’s ability to generate surplus cash that could fund activities not in the ordinary course of business. See “Key Non-GAAP Financial Measures We Use to Evaluate Our Performance” for further discussion. The following table sets forth the calculation of Free Cash Flow for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Net cash provided by operating activities	$	26,410	$	217
Cash paid for fixed assets	(4,594)		(2,904)
Free Cash Flow	$	21,816	$	(2,687)

Free Cash Flow for the three months ended December 28, 2024 was $24.5 million higher than for the three months ended December 30, 2023 due to a $26.2 million increase in net cash provided by operating activities and a $1.7 million increase in cash paid for fixed assets, both as discussed above.

Off-Balance Sheet Arrangements

We had outstanding letters of credit totaling $6.7 million at December 28, 2024, the majority of which secure our self-insured workers compensation program, the collateral for which is regulated by the State of Georgia.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

There have not been any material changes to our interest rate, commodity or currency risks previously disclosed in Part II, Item 7A of the Company’s fiscal 2024 Form 10-K.

Item 4. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

The Company maintains a system of disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act) that are designed to provide reasonable assurance that information required to be disclosed in its reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to management, including, as appropriate, the Chief Executive Officer and the Chief Financial Officer, to allow timely decisions regarding required disclosures. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives.

Based on their evaluations, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective as of December 28, 2024.

Changes in Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting that occurred during the fiscal quarter ended December 28, 2024 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II – OTHER INFORMATION

Items required under Part II not specifically shown below are not applicable.

Item 1. Legal Proceedings.

Blue Bird is engaged in legal proceedings in the ordinary course of its business. Although no assurances can be given about the final outcome of pending legal proceedings, at the present time management does not believe that the resolution or outcome of any of Blue Bird’s pending legal proceedings will have a material adverse effect on its financial condition, liquidity or results of operations.

Item 1A. Risk Factors.

In addition to the other information set forth in this Report, you should carefully consider the risk factors discussed in Part I, Item 1A of the Company's fiscal 2024 Form 10-K. Such risk factors are expressly incorporated herein by reference and they, and the risk factors included below, could materially adversely affect our business, financial condition, cash flows or operating results.

Our costs to produce, and our ability to sell, our products may be negatively impacted by changes in trade policies and tariffs

Recently proposed trade policies and tariffs could increase the cost of components we and/or our suppliers purchase from Canada, China and Mexico, which would increase our cost to produce buses and purchase parts for resale. These discussed trade policies and tariffs could expand to other foreign countries in future periods. We can provide no assurance that we would be able to successfully pass along part or all of our increased costs to our customers, particularly for those customers for which we have executed a contract containing a fixed bus price. Additionally, our ability to increase the sales price we charge for our products could impact customer buying decisions in future periods, resulting in them buying less, or none, of our products. We can provide no assurance that our ability to sell our products at reasonable margins, or at all, would not be impaired by the imposition of changes in trade policies and tariffs that may make it more difficult or expensive for us to purchase inventory, which could result in reduced sales, profitability and cash flows.

Changes in laws, regulations or governmental policies and programs involving grants, subsidies and/or other incentives may negatively impact our sale of alternative powered school buses

Our production plans and financial projections incorporate federal and state programs supporting adoption of clean fuel technologies into existing school bus fleets by offering grants, subsidies and/or other incentives to partially, or fully, offset the higher price of alternative powered school buses. Changes in government programs and support for these products could impact customer buying decisions in future periods, resulting in them buying less, or none, of our alternative powered products. While we manage our product development and production operations to support all power options we offer to our customers, which include diesel, gasoline, propane and all-electric powered school buses, our materials ordering and sales projections incorporate assumptions that the mix of school buses we will produce and sell in future periods will be impacted by customers taking advantage of assistance programs offered by federal and state governments. Changes in such programs could impact customer ordering practices, which could result in sales and/or gross profit amounts varying, potentially significantly, from our original estimates of such amounts.

The risks described in the fiscal 2024 Form 10-K and above are not the only risks facing the Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also materially adversely affect our business, financial condition, cash flows and/or operating results.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

Issuer Repurchase of Equity Securities

The Board of Directors also authorized the Company to enter into written trading plans pursuant to Rule 10b5-1 under the Securities Exchange Act of 1934, as amended. Adopting a trading plan that satisfies the conditions of Rule 10b5-1 allows a company to repurchase its shares at times when it might otherwise be prevented from doing so due to self-imposed trading blackout periods or

pursuant to insider trading laws. The Company may from time to time enter into Rule 10b5-1 trading plans to facilitate the repurchase of its common stock pursuant to its share repurchase program.

The timing, manner, price, and number of shares to be repurchased will be at the discretion of Company management. The repurchase program does not obligate Blue Bird to acquire any specific amount of securities and can be modified or terminated at any time without notice. Repurchases under this program are expected to be funded from one or a combination of existing cash balances, future free cash flow, or indebtedness.

Share repurchase activity under the share repurchase program, on a trade date basis, for each month in the quarter ended December 28, 2024, was as follows:


Period by fiscal month	Total number of shares repurchased	Average price paid per share (in dollars) (1)		Total number of shares repurchased as part of publicly announced plans or programs (2)	Approximate dollar value of shares that may yet be purchased under the plans or programs (in millions)
September 29 - October 26, 2024	—	$	—	—	$	50.1
October 27 - November 23, 2024	—	—		—	50.1
November 24 - December 28, 2024	243,450	41.22		243,450	40.0
Total	243,450			243,450

(1) Average price paid per share includes costs associated with the repurchases, except for the cost of any associated excise tax.

(2) All share repurchases were made under the $60.0 million repurchase program approved on January 31, 2024 and announced on February 1, 2024 that expires on January 31, 2026.

Item 5. Other Information.

(c) During the first quarter of fiscal 2025, none of the Company's directors or officers adopted or terminated any "Rule 10b5-1 trading arrangement" or any "non-Rule 10b5-1 trading arrangement," as each term is defined in Item 408 of Regulation S-K.

Item 6. Exhibits.

The following Exhibits are filed with this Report:


Exhibit No.						Description
3.1						The registrant’s Second Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the registrant’s Current Report on Form 8-K, filed by the registrant with the SEC on February 26, 2015).

3.2						Bylaws of Blue Bird Corporation, as amended, effective February 2, 2023 (incorporated by reference to Exhibit 3.2 to the registrant's Current Report on Form 8-K, filed by the registrant with the SEC on February 3, 2023).

10.1						Form of Warrant to Purchase Common Stock of Blue Bird Corporation, dated November 14, 2024, issued by Blue Bird Corporation with an Expiration Date of December 7, 2028 (incorporated by reference to Exhibit 4.2 to the registrant’s Registration Statement on Form S-3ASR filed by the registrant on December 23, 2024, File No. 333-284017).

10.2						Form of Warrant to Purchase Common Stock of Blue Bird Corporation, dated as of November 14, 2024, issued by Blue Bird Corporation with an Expiration Date of August 8, 2029 (incorporated by reference to Exhibit 4.3 to the registrant’s Registration Statement on Form S-3ASR filed by the registrant on December 23, 2024, File No. 333-284017).

31.1*						Chief Executive Officer’s Certification Pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934.

31.2*						Chief Financial Officer’s Certification Pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934.

32.1*						Chief Executive Officer and Chief Financial Officer Joint Certification Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101.INS*^						XBRL Instance Document

101.SCH*^						XBRL Taxonomy Extension Schema Document

101.CAL*^						XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF*^						XBRL Taxonomy Extension Definition Linkbase Document

101.LAB*^						XBRL Taxonomy Extension Label Linkbase Document

101.PRE*^						XBRL Taxonomy Extension Presentation Linkbase Document

104						Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

* Filed herewith.

^ In accordance with Regulation S-T, XBRL (Extensible Business Reporting Language) related information in Exhibit No. 101 to this Quarterly Report on Form 10-Q shall be deemed “furnished” and not “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section, and shall not be incorporated by reference into any registration statement pursuant to the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


		Blue Bird Corporation


Dated:	February 5, 2025	/s/ Philip Horlock
		Philip Horlock
		President and Chief Executive Officer

Dated:	February 5, 2025	/s/ Razvan Radulescu
		Razvan Radulescu
		Chief Financial Officer

Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO SECURITIES EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a)

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Philip Horlock, the Chief Executive Officer of Blue Bird Corporation (the “registrant”), certify that:

(1) I have reviewed this quarterly report on Form 10-Q of Blue Bird Corporation;

(2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

(3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

(4) The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report, based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

(5) The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.


Dated:	February 5, 2025	/s/ Philip Horlock
		Philip Horlock
		President & Chief Executive Officer

Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO SECURITIES EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a)

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Razvan Radulescu, the Chief Financial Officer of Blue Bird Corporation (the “registrant”), certify that:

(1) I have reviewed this quarterly report on Form 10-Q of Blue Bird Corporation;

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.


Dated:	February 5, 2025	/s/ Razvan Radulescu
		Razvan Radulescu
		Chief Financial Officer

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report of Blue Bird Corporation (the “Company”) on Form 10-Q for the quarterly period ended December 28, 2024, as filed with the United States Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Philip Horlock, Chief Executive Officer of the Company, and Razvan Radulescu, Chief Financial Officer of the Company, do hereby certify, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.


Dated:	February 5, 2025	/s/ Philip Horlock
		Philip Horlock
		President & Chief Executive Officer



Dated:	February 5, 2025	/s/ Razvan Radulescu
		Razvan Radulescu
		Chief Financial Officer

Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Dec. 28, 2024	Jan. 31, 2025
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 28, 2024
Document Transition Report	false
Entity File Number	001-36267
Entity Registrant Name	BLUE BIRD CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-3891989
Entity Address, Address Line One	3920 Arkwright Road
Entity Address, Address Line Two	2nd Floor
Entity Address, City or Town	Macon
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	31210
City Area Code	478
Local Phone Number	822-2801
Title of 12(b) Security	Common stock, $0.0001 par value
Trading Symbol	BLBD
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		32,111,078
Entity Central Index Key	0001589526
Current Fiscal Year End Date	--09-27
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q1
Amendment Flag	false

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 28, 2024	Sep. 28, 2024
Current assets
Cash and cash equivalents	$ 136,119	$ 127,687
Accounts receivable, net	13,996	59,099
Inventories	163,120	127,798
Other current assets	17,623	8,795
Total current assets	330,858	323,379
Property, plant and equipment, net	98,384	97,322
Goodwill	18,825	18,825
Intangible assets, net	43,087	43,554
Equity investment in affiliates	34,393	32,089
Deferred tax assets	2,112	2,399
Finance lease right-of-use assets	156	332
Pension	5,156	4,649
Other assets	2,251	2,345
Total assets	535,222	524,894
Current liabilities
Accounts payable	137,757	143,156
Warranty	7,059	7,166
Accrued expenses	46,738	55,775
Deferred warranty income	9,907	9,421
Finance lease obligations	436	975
Other current liabilities	22,530	14,480
Current portion of long-term debt	5,000	5,000
Total current liabilities	229,427	235,973
Long-term liabilities
Revolving credit facility	0	0
Long-term debt	88,828	89,994
Warranty	9,068	9,013
Deferred warranty income	19,652	18,541
Deferred tax liabilities	368	2,783
Finance lease obligations	6	6
Other liabilities	8,168	9,020
Total long-term liabilities	126,090	129,357
Guarantees, commitments and contingencies (Note 6)
Stockholders' equity
Preferred stock, $0.0001 par value, 10,000,000 shares authorized, 0 shares outstanding at December 28, 2024 and September 28, 2024	0	0
Common stock, $0.0001 par value, 100,000,000 shares authorized, 32,111,078 and 32,268,022 shares issued and outstanding at December 28, 2024 and September 28, 2024, respectively	3	3
Additional paid-in capital	187,379	185,977
Retained earnings	18,686	0
Accumulated other comprehensive loss	(26,363)	(26,416)
Total stockholders' equity	179,705	159,564
Total liabilities and stockholders' equity	$ 535,222	$ 524,894

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 28, 2024	Sep. 28, 2024
Statement of Financial Position [Abstract]
Preferred Stock, Par Value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Shares Outstanding	0	0
Common Stock, Par Value (in dollars per share)	$ 0.0001	$ 0.0001
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Shares Outstanding	32,111,078	32,268,022

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Income Statement [Abstract]
Net sales	$ 313,872	$ 317,660
Cost of goods sold	253,555	254,102
Gross profit	60,317	63,558
Operating expenses
Selling, general and administrative expenses	27,275	25,602
Operating profit	33,042	37,956
Interest expense	(1,915)	(3,631)
Interest income	1,568	1,088
Other income (expense), net	2,916	(1,221)
Loss on debt refinancing	0	(1,558)
Income before income taxes	35,611	32,634
Income tax expense	(8,693)	(8,446)
Equity in net income of non-consolidated affiliates	1,804	1,962
Net income	$ 28,722	$ 26,150
Earnings per share:
Basic weighted average shares outstanding	32,227,723	32,170,779
Diluted weighted average shares outstanding	33,360,940	32,429,127
Basic earnings per share (in dollars per share)	$ 0.89	$ 0.81
Diluted earnings per share (in dollars per share)	$ 0.86	$ 0.81

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 28,722	$ 26,150
Other comprehensive income, net of tax:
Net change in defined benefit pension plan	53	131
Total other comprehensive income	53	131
Comprehensive income	$ 28,775	$ 26,281

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Cash flows from operating activities
Net income	$ 28,722	$ 26,150
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	3,856	3,618
Non-cash interest expense	84	132
Share-based compensation expense	2,506	2,051
Equity in net income of non-consolidated affiliates	(1,804)	(1,962)
Dividend from equity investment in affiliates	0	2,991
Loss on disposal of fixed assets	20	4
Deferred income tax expense	(2,145)	1,143
Amortization of deferred actuarial pension losses	70	172
Loss on debt refinancing	0	1,558
Changes in assets and liabilities:
Accounts receivable	45,103	1,467
Inventories	(35,322)	(7,171)
Other assets	(9,241)	(3,095)
Accounts payable	(5,473)	(23,103)
Accrued expenses, pension and other liabilities	34	(3,738)
Total adjustments	(2,312)	(25,933)
Total cash provided by operating activities	26,410	217
Cash flows from investing activities
Cash paid for fixed assets	(4,594)	(2,904)
Equity investment in affiliates (Note 12)	(500)	0
Total cash used in investing activities	(5,094)	(2,904)
Cash flows from financing activities
Revolving credit facility borrowings	0	36,220
Term loan borrowings	0	100,000
Term loan repayments	(1,250)	(131,800)
Principal payments on finance leases	(538)	(145)
Cash paid for debt costs	0	(3,128)
Repurchase of common stock in connection with repurchase program (Note 13)	(10,036)	0
Repurchase of common stock in connection with stock award exercises	(1,445)	(301)
Cash received from stock option exercises	385	149
Total cash (used in) provided by financing activities	(12,884)	995
Change in cash and cash equivalents	8,432	(1,692)
Cash and cash equivalents at beginning of period	127,687	78,988
Cash and cash equivalents at end of period	136,119	77,296
Supplemental disclosures of cash flow information
Interest paid	2,368	2,895
Interest received	(1,436)	(1,088)
Income tax paid, net of tax refunds	80	2
Non-cash investing and financing activities:
Changes in accounts payable for capital additions to property, plant and equipment	1,940	953
Warrants issued for equity investment in affiliate	0	7,416
Right-of-use assets obtained in exchange for operating lease obligations	$ 0	$ 1,241

Consolidated Statement of Stockholders' Deficit Statement - USD ($)	Total	Common Stock	Additional Paid-In-Capital	Accumulated Other Comprehensive Loss	Retained Earnings (Accumulated Deficit)	Treasury Stock
Beginning Balance (in shares) at Sep. 30, 2023		32,165,225				1,782,568
Beginning Balance at Sep. 30, 2023	$ 39,998,000	$ 3,000	$ 177,861,000	$ (31,884,000)	$ (55,700,000)	$ (50,282,000)
Issuance of warrants	7,416,000		7,416,000
Restricted stock activity (in shares)		22,115
Restricted stock activity	(301,000)		(301,000)
Stock option activity (in shares)		11,252
Stock option activity	149,000		149,000
Share-based compensation expense	2,034,000		2,034,000
Share repurchases (Note 13)	0
Net income	26,150,000				26,150,000
Other comprehensive income, net of tax	131,000
Other comprehensive income, net of tax	131,000			131,000
Ending Balance (in shares) at Dec. 30, 2023		32,198,592				1,782,568
Ending Balance at Dec. 30, 2023	75,577,000	$ 3,000	187,159,000	(31,753,000)	(29,550,000)	$ (50,282,000)
Beginning Balance (in shares) at Sep. 28, 2024		32,268,022				0
Beginning Balance at Sep. 28, 2024	159,564,000	$ 3,000	185,977,000	(26,416,000)	0	$ 0
Restricted stock activity (in shares)		57,420
Restricted stock activity	(1,445,000)		(1,445,000)
Stock option activity (in shares)		29,086
Stock option activity	385,000		385,000
Share-based compensation expense	$ 2,462,000		2,462,000
Share repurchases (Note 13) (in shares)	(243,450)
Share repurchases (Note 13)	$ (10,036,000)
Net income	28,722,000				28,722,000
Other comprehensive income, net of tax	53,000			53,000
Ending Balance (in shares) at Dec. 28, 2024		32,111,078				0
Ending Balance at Dec. 28, 2024	$ 179,705,000	$ 3,000	$ 187,379,000	$ (26,363,000)	$ 18,686,000	$ 0

Nature of Business and Basis of Presentation	3 Months Ended
Nature of Business and Basis of Presentation	Dec. 28, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business and Basis of Presentation	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 has manufactured, assembled and sold school buses to a variety of municipal, federal and commercial customers since 1927. The majority of BBBC’s sales are made to an independent dealer network, which in turn sells buses to ultimate end users. References in these notes to condensed consolidated financial statements to “Blue Bird,” the “Company,” “we,” “our,” or “us” relate to Blue Bird Corporation and 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-owned subsidiaries. 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 accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial reporting and Article 10 of Regulation S-X. The Company’s fiscal year ends on the Saturday closest to September 30 with its quarters consisting of thirteen weeks in most years. The fiscal years ending September 27, 2025 ("fiscal 2025") and ended September 28, 2024 ("fiscal 2024") consist or consisted of 52 weeks. The first quarters of fiscal 2025 and fiscal 2024 both included 13 weeks. In the opinion of management, all adjustments considered necessary for a fair presentation of financial results have been made. Such adjustments consist of only those of a normal recurring nature. Operating results for any interim period are not necessarily indicative of the results that may be expected for the entire year. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. The Condensed Consolidated Balance Sheet data as of September 28, 2024 was derived from the Company’s audited financial statements but does not include all disclosures required by U.S. GAAP. For additional information, including the Company’s significant accounting policies, refer to the consolidated financial statements and related footnotes as of and for the fiscal year ended September 28, 2024 as set forth in the Company's fiscal 2024 Form 10-K filed with the Securities and Exchange Commission ("SEC") on November 25, 2024. Impacts of Supply Chain Constraints on Our Business The global automotive industry supply chain constraints that arose subsequent to the novel coronavirus pandemic known as "COVID-19" and that were further exacerbated by additional stress resulting from Russia’s invasion of Ukraine in February 2022 continued to impact our business and operations during the first quarters of fiscal 2024 and 2025. Specifically, they continued to result in higher purchasing costs, including freight costs incurred to deliver critical components, to procure the raw materials inventory needed to produce buses to fulfill sales orders. Additionally, there were still occasional shortages of certain critical components that limited the number and/or mix of school buses that we could produce and sell. Nonetheless, ongoing improvements in manufacturing operations that have resulted in the consistent production of buses, when coupled with periodic pricing actions taken to ensure that the increased sales prices charged for buses keep pace with increased costs to procure inventory to produce buses, have resulted in the Company reporting gross profit and gross margin in the first quarters of fiscal 2025 and 2024 that exceeded those reported in pre-pandemic fiscal years. Significant uncertainty still exists concerning the magnitude and duration of the ongoing supply chain constraints and accordingly, precludes any prediction as to the ultimate severity of the adverse impacts on our business, financial condition, results of operations, and liquidity. Use of Estimates and Assumptions The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions. At the date of the financial statements, these estimates and assumptions affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities, and during the reporting period, these estimates and assumptions affect the reported amounts of revenues and expenses. For example, significant management judgments are required in determining excess, obsolete, or unsalable inventory; the allowance for doubtful accounts; potential impairment of long-lived assets, goodwill and intangible assets; and the accounting for self-insurance reserves, warranty reserves, pension obligations, income taxes, environmental liabilities and contingencies. Future events, including the extent and duration of continued supply chain constraints and their related economic impacts, and their effects cannot be predicted with certainty, and, accordingly, the Company’s accounting estimates require the exercise of judgment. The accounting estimates used in the preparation of the Company’s condensed consolidated financial statements may change as new events occur, as more experience is acquired, as additional information is obtained and as the Company’s operating environment changes. The Company evaluates and updates its assumptions and estimates on an ongoing basis and may employ outside experts to assist in the Company’s evaluations. Actual results could differ from the estimates that the Company has used.

Summary of Significant Accounting Policies and Recently Issued Accounting Standards	3 Months Ended
	Dec. 28, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies and Recently Issued Accounting Standards	2. Summary of Significant Accounting Policies and Recently Issued Accounting Standards The Company’s significant accounting policies are described in the Company’s fiscal 2024 Form 10-K, filed with the SEC on November 25, 2024. Our senior management has reviewed these significant accounting policies and related disclosures and determined that there were no significant changes in our critical accounting policies in the three months ended December 28, 2024. Recently Issued Accounting Standards ASU 2023-07 On November 27, 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires public business entities ("PBEs") to disclose information about their reportable segments’ significant expenses on an interim and annual basis. The ASU is effective for fiscal years beginning after December 15, 2023, and interim periods beginning after December 15, 2024, with early adoption permitted. ASU 2023-09 On December 14, 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires entities to disclose more detailed information in their reconciliation of their statutory tax rate to their effective tax rate. PBEs are required to provide this incremental detail in a numerical, tabular format. The ASU also requires entities to disclose more detailed information about income taxes paid, including by jurisdiction; pretax income (or loss) from continuing operations; and income tax expense (or benefit). The ASU is effective for PBEs in fiscal years beginning after December 15, 2024, with early adoption permitted. ASUs 2024-03 & 2025-01 On November 4, 2024, the FASB issued ASU 2024-03, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires PBEs to disclose disaggregated information about certain income statement expense line items. On January 6, 2025, the FASB issued ASU 2025-01, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date, to clarify the effective date of ASU 2024-03, which is for fiscal years beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027. The new ASUs will not impact amounts recorded in the financial statements but instead, will require more detailed disclosures in the footnotes to the financial statement. The Company plans to provide the updated disclosures required by the ASUs in the periods in which they are effective.

Supplemental Financial Information

3 Months Ended

Dec. 28, 2024

Condensed Financial Information [Abstract]

Supplemental Financial Information

3. Supplemental Financial Information

Inventories

The following table presents the components of inventories at the dates indicated:


(in thousands of dollars)	December 28, 2024		September 28, 2024
Raw materials	$	104,495	$	83,027
Work in process	38,256		32,556
Finished goods	20,369		12,215
Total inventories	$	163,120	$	127,798

Product Warranties

The following table reflects activity in accrued warranty cost (current and long-term portions combined) for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Balance at beginning of period	$	16,179	$	15,434
Add current period accruals	2,538		2,341
Current period reductions of accrual	(2,590)		(2,492)
Balance at end of period	$	16,127	$	15,283

Extended Warranties

The following table reflects activity in deferred warranty income (current and long-term portions combined), for the sale of extended warranties of two to five years, for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Balance at beginning of period	$	27,962	$	23,123
Add current period deferred income	3,929		2,998
Current period recognition of income	(2,332)		(2,003)
Balance at end of period	$	29,559	$	24,118

Self-Insurance

The following table reflects our total accrued self-insurance liability, comprised of workers' compensation and health insurance related claims, at the dates indicated:


(in thousands of dollars)	December 28, 2024		September 28, 2024
Current portion	$	4,723	$	5,008
Long-term portion	2,596		2,248
Total accrued self-insurance	$	7,319	$	7,256

The current and long-term portions of the accrued self-insurance liability are reflected in accrued expenses and other liabilities, respectively, on the Condensed Consolidated Balance Sheets.

Shipping and Handling Revenues

Pension (Income) Expense

Components of net periodic pension benefit (income) expense were as follows for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Interest cost	$	1,312	$	1,484
Expected return on plan assets	(1,819)		(1,620)
Amortization of prior loss	70		172
Net periodic pension benefit (income) expense	$	(437)	$	36
Amortization of prior loss, recognized in other comprehensive income	(70)		(172)
Total recognized in net periodic pension benefit (income) expense and other comprehensive income	$	(507)	$	(136)

Debt

3 Months Ended

Dec. 28, 2024

Debt Disclosure [Abstract]

Debt

4. Debt

Term loan borrowings consisted of the following at the dates indicated:


(in thousands of dollars)	December 28, 2024		September 28, 2024
Term loan borrowings, net of deferred financing costs of $1,172 and $1,256, respectively	$	93,828	$	94,994
Less: current portion of long-term debt	5,000		5,000
Long-term debt, net of current portion	$	88,828	$	89,994

Interest expense on all indebtedness was $1.9 million and $3.6 million for the three months ended December 28, 2024 and December 30, 2023, respectively.

The schedule of remaining principal payments through maturity for the term loans is as follows:


(in thousands of dollars)
Fiscal Year	Principal Payments
2025	$	3,750
2026	5,000
2027	5,000
2028	5,000
2029	5,000
Thereafter	71,250
Total remaining principal payments	$	95,000

Income Taxes	3 Months Ended
Income Taxes	Dec. 28, 2024
Income Tax Disclosure [Abstract]
Income Taxes	5. Income Taxes Income tax provisions for interim periods are based on estimated annual income tax rates, adjusted to reflect the effects of any significant infrequent or unusual items that are required to be discretely recognized within the current interim period. The effective tax rates in the periods presented are largely based upon the annual forecasted pre-tax earnings mix and allocation of certain expenses in various taxing jurisdictions where the Company conducts its business, primarily in the United States of America ("U.S."). In periods where our pre-tax income approximates or is equal to break-even, the effective tax rates for quarter-to-date and full-year periods may not be meaningful due to discrete period items. Three Months The effective tax rate for the three months ended December 28, 2024 was 24.4% and differed from the statutory federal income tax rate of 21%. The increase was primarily due to the impacts from state taxes and certain permanent items on the federal rate, which were partially offset by the impacts from federal and state tax credits (net of valuation allowances) and discrete period items during the quarter. The effective tax rate for the three months ended December 30, 2023 was 25.9% and differed from the statutory federal income tax rate of 21%. The increase was primarily due to the impacts from state taxes and certain permanent items on the federal rate, which were partially offset by the impacts from federal and state tax credits (net of valuation allowances) and discrete period items during the quarter.

Guarantees, Commitments and Contingencies	3 Months Ended
Guarantees, Commitments and Contingencies	Dec. 28, 2024
Commitments and Contingencies Disclosure [Abstract]
Guarantees, Commitments and Contingencies	6. Guarantees, Commitments and Contingencies Litigation At December 28, 2024, the Company had a number of product liability and other cases pending. Management believes that, considering the Company’s insurance coverage and its intention to vigorously defend its positions, the ultimate resolution of these matters will not have a material adverse effect on the Company’s financial statements. Environmental The Company is subject to a variety of environmental regulations relating to the use, storage, discharge and disposal of hazardous materials used in its manufacturing processes. Failure by the Company to comply with present and future regulations could subject it to future liabilities. In addition, such regulations could require the Company to acquire costly equipment or to incur other significant expenses to comply with environmental regulations. The Company is currently not involved in any material environmental proceedings and therefore, management believes that the resolution of pending environmental matters will not have a material adverse effect on the Company’s financial statements.

Segment Information

3 Months Ended

Dec. 28, 2024

Segment Reporting [Abstract]

Segment Information

7. Segment Information


Net sales
	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Bus (1)	$	288,147	$	293,437
Parts (1)	25,725		24,223
Segment net sales	$	313,872	$	317,660


Gross profit
	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Bus	$	47,172	$	51,294
Parts	13,145		12,264
Segment gross profit	$	60,317	$	63,558

The following table is a reconciliation of segment gross profit to consolidated income before income taxes for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Segment gross profit	$	60,317	$	63,558
Adjustments:
Selling, general and administrative expenses	(27,275)		(25,602)
Interest expense	(1,915)		(3,631)
Interest income	1,568		1,088
Other income (expense), net	2,916		(1,221)
Loss on debt refinancing	—		(1,558)
Income before income taxes	$	35,611	$	32,634

Sales are attributable to geographic areas based on customer location and were as follows for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
U.S.	$	287,957	$	302,532
Canada	24,603		15,119
Rest of world	1,312		9
Total net sales	$	313,872	$	317,660

Revenue

3 Months Ended

Dec. 28, 2024

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customer

8. Revenue

The following table disaggregates revenue by product category for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Diesel buses	$	124,372	$	84,998
Alternative power buses (1)	148,922		195,329
Other (2)	15,487		13,697


Parts	25,091		23,636
Net sales	$	313,872	$	317,660

(1) Includes buses sold with any power source other than diesel (e.g., gasoline, propane, compressed natural gas ("CNG") or electric).

(2) Includes shipping and handling revenue, extended warranty income, surcharges and chassis and bus shell sales.

Earnings Per Share

3 Months Ended

Dec. 28, 2024

Earnings Per Share [Abstract]

Earnings Per Share

9. Earnings Per Share

The following table presents the earnings per share computation for the periods presented:


	Three Months Ended
(in thousands except for share data)	December 28, 2024		December 30, 2023
Numerator:
Net income	$	28,722	$	26,150

Denominator:
Weighted-average common shares outstanding	32,227,723		32,170,779
Weighted-average dilutive securities, restricted stock	479,759		145,759
Weighted-average dilutive securities, stock options	249,233		100,170
Weighted-average dilutive securities, warrants	404,225		12,419

Weighted-average shares and dilutive potential common shares (1)	33,360,940		32,429,127

Earnings per share:
Basic earnings per share	$	0.89	$	0.81
Diluted earnings per share	$	0.86	$	0.81

Accumulated Other Comprehensive Loss

3 Months Ended

Dec. 28, 2024

Equity [Abstract]

Accumulated Other Comprehensive Loss

10. Accumulated Other Comprehensive Loss

The following table provides information on changes in accumulated other comprehensive loss ("AOCL") for the periods presented:


	Three Months Ended
(in thousands of dollars)	Defined Benefit Pension Plan		Total AOCL
December 28, 2024
Beginning Balance	$	(26,416)	$	(26,416)

Amounts reclassified and included in earnings	70		70
Total before taxes	70		70
Income taxes	(17)		(17)
Ending Balance December 28, 2024	$	(26,363)	$	(26,363)

December 30, 2023
Beginning Balance	$	(31,884)	$	(31,884)

Amounts reclassified and included in earnings	172		172
Total before taxes	172		172
Income taxes	(41)		(41)
Ending Balance December 30, 2023	$	(31,753)	$	(31,753)

Stockholder Transaction Costs	3 Months Ended
Stockholder Transaction Costs	Dec. 28, 2024
Equity [Abstract]
Stockholder Transaction Costs	11. Stockholder Transaction Costs On December 14, 2023, the Company entered into an underwriting agreement with BofA Securities, Inc. and Barclays Capital Inc., as representatives of the several underwriters and American Securities LLC ("Selling Stockholder"), pursuant to which the Selling Stockholder agreed to sell 2,500,000 shares of common stock at a purchase price of $25.10 per share (“Offering”). The Offering was conducted pursuant to a prospectus supplement, dated December 14, 2023, to the prospectus dated December 22, 2021 included in the Company’s registration statement on Form S-3 (File No. 333-261858) that was initially filed with the SEC on December 23, 2021. The Offering closed on December 19, 2023. Although the Company did not sell any shares or receive any proceeds from the Offering, it was required to pay certain expenses in connection with the transaction that totaled approximately $1.2 million for the three months ended December 30, 2023. The $1.2 million of expense is included within other income (expense), net on the Condensed Consolidated Statements of Operations for the three months ended December 30, 2023. No such expense was incurred in the three months ended December 28, 2024. 13. Stockholders’ Equity Share Repurchase Program and Common Stock Retirement On January 31, 2024, the Board of Directors of the Company authorized and approved a share repurchase program for up to $60 million of outstanding shares of the Company’s common stock over a period of 24 months, expiring January 31, 2026. Under the share repurchase program, the Company may repurchase shares through open market purchases, privately negotiated transactions, accelerated share repurchase transactions, block purchases or otherwise in accordance with applicable federal securities laws, including Rule 10b-18 of the Securities Exchange Act of 1934, as amended. During the three months ended December 28, 2024, the Company repurchased 243,450 shares of its common stock for $10.0 million, pursuant to the share repurchase plan. The Company constructively retired these shares immediately after repurchase, with the $10.0 million amount paid in excess of the $0.0001 par value of each share recorded as a reduction in retained earnings. No such repurchases were made during the three months ended December 30, 2023. The total remaining authorization for future common stock repurchases under the Company's share repurchase program was $40.0 million as of December 28, 2024.

Joint Ventures	3 Months Ended
Joint Ventures	Dec. 28, 2024
Equity Method Investments and Joint Ventures [Abstract]
Joint Ventures	12. Equity Investment in Affiliates The Company has made investments in the below entities and utilizes the equity method of accounting to record its interest in them as it does not have control to direct the activities that most significantly impact their financial performance based on the shared powers of the venture partners. The carrying amount of the equity method investments is adjusted for any contribution that the Company makes to them as well as for the Company’s proportionate share of net earnings or losses and any dividends received. Micro Bird Holdings, Inc. The Company holds a 50% equity interest in Micro Bird Holdings, Inc. ("Micro Bird"), our unconsolidated Canadian joint venture that produces Blue Bird Micro Bird by Girardin Type A buses in Drummondville, Quebec. In recognizing the Company’s 50% portion of Micro Bird's net income or loss, the Company recorded $2.1 million and $2.0 million in equity in net income of non-consolidated affiliates on the Condensed Consolidated Statements of Operations for the three months ended December 28, 2024 and December 30, 2023, respectively. In December 2023, Micro Bird paid dividends to all common stockholders, with the Company's proportionate share totaling $3.0 million, gross of required withholding taxes. The dividend was recorded as a reduction in the balance of equity investment in affiliates on the Condensed Consolidated Balance Sheets and is presented as a cash inflow in the operating section of the Condensed Consolidated Statements of Cash Flows. No dividends were paid in the three months ended December 28, 2024. At December 28, 2024 and September 28, 2024, the carrying value of the Company's investment in Micro Bird included within equity investment in affiliates on the Condensed Consolidated Balance Sheets was $26.6 million and $24.4 million, respectively. Clean Bus Solutions, LLC The Company holds a 50% equity interest in Clean Bus Solutions, LLC ("CBS"), our unconsolidated joint venture that provides a fleet-as-a-service ("FaaS") offering using electric school buses manufactured and sold by the Company. The service is offered to qualified customers of the Company by providing them with turnkey electrification solutions, including a wide product range consisting of, among others, electric school buses, financing of electric buses and supporting charging infrastructure, project planning and management, and fleet optimization. During the three months ended December 28, 2024, the Company made a $0.5 million cash contribution to CBS and during the three months ended December 30, 2023, the Company recorded the $7.4 million fair value of warrants it issued to the joint venture partner as its initial investment in CBS, both of which increased the balance of equity investment in affiliates on the Condensed Consolidated Balance Sheets. In recognizing the Company’s 50% portion of CBS' net income or loss, the Company recorded $(0.3) million (a loss) in equity in net income of non-consolidated affiliates on the Condensed Consolidated Statements of Operations for the three months ended December 28, 2024, while no amount was recorded in the three months ended December 30, 2023. CBS paid no dividends in either period. At December 28, 2024 and September 28, 2024, the carrying value of the Company's investment in CBS included within equity investment in affiliates on the Condensed Consolidated Balance Sheets was $7.8 million and $7.7 million, respectively.

Stockholders' Deficit	3 Months Ended
Stockholders' Deficit	Dec. 28, 2024
Equity [Abstract]
Stockholders' Equity	11. Stockholder Transaction Costs On December 14, 2023, the Company entered into an underwriting agreement with BofA Securities, Inc. and Barclays Capital Inc., as representatives of the several underwriters and American Securities LLC ("Selling Stockholder"), pursuant to which the Selling Stockholder agreed to sell 2,500,000 shares of common stock at a purchase price of $25.10 per share (“Offering”). The Offering was conducted pursuant to a prospectus supplement, dated December 14, 2023, to the prospectus dated December 22, 2021 included in the Company’s registration statement on Form S-3 (File No. 333-261858) that was initially filed with the SEC on December 23, 2021. The Offering closed on December 19, 2023. Although the Company did not sell any shares or receive any proceeds from the Offering, it was required to pay certain expenses in connection with the transaction that totaled approximately $1.2 million for the three months ended December 30, 2023. The $1.2 million of expense is included within other income (expense), net on the Condensed Consolidated Statements of Operations for the three months ended December 30, 2023. No such expense was incurred in the three months ended December 28, 2024. 13. Stockholders’ Equity Share Repurchase Program and Common Stock Retirement On January 31, 2024, the Board of Directors of the Company authorized and approved a share repurchase program for up to $60 million of outstanding shares of the Company’s common stock over a period of 24 months, expiring January 31, 2026. Under the share repurchase program, the Company may repurchase shares through open market purchases, privately negotiated transactions, accelerated share repurchase transactions, block purchases or otherwise in accordance with applicable federal securities laws, including Rule 10b-18 of the Securities Exchange Act of 1934, as amended. During the three months ended December 28, 2024, the Company repurchased 243,450 shares of its common stock for $10.0 million, pursuant to the share repurchase plan. The Company constructively retired these shares immediately after repurchase, with the $10.0 million amount paid in excess of the $0.0001 par value of each share recorded as a reduction in retained earnings. No such repurchases were made during the three months ended December 30, 2023. The total remaining authorization for future common stock repurchases under the Company's share repurchase program was $40.0 million as of December 28, 2024.

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Dec. 28, 2024	Dec. 30, 2023
Pay vs Performance Disclosure
Net income	$ 28,722	$ 26,150

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Dec. 28, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Nature of Business and Basis of Presentation (Policies)	3 Months Ended
Nature of Business and Basis of Presentation (Policies)	Dec. 28, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. 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 accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial reporting and Article 10 of Regulation S-X. The Company’s fiscal year ends on the Saturday closest to September 30 with its quarters consisting of thirteen weeks in most years. The fiscal years ending September 27, 2025 ("fiscal 2025") and ended September 28, 2024 ("fiscal 2024") consist or consisted of 52 weeks. The first quarters of fiscal 2025 and fiscal 2024 both included 13 weeks. In the opinion of management, all adjustments considered necessary for a fair presentation of financial results have been made. Such adjustments consist of only those of a normal recurring nature. Operating results for any interim period are not necessarily indicative of the results that may be expected for the entire year. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. The Condensed Consolidated Balance Sheet data as of September 28, 2024 was derived from the Company’s audited financial statements but does not include all disclosures required by U.S. GAAP. For additional information, including the Company’s significant accounting policies, refer to the consolidated financial statements and related footnotes as of and for the fiscal year ended September 28, 2024 as set forth in the Company's fiscal 2024 Form 10-K filed with the Securities and Exchange Commission ("SEC") on November 25, 2024.
Use of Estimates and Assumptions	Use of Estimates and Assumptions The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions. At the date of the financial statements, these estimates and assumptions affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities, and during the reporting period, these estimates and assumptions affect the reported amounts of revenues and expenses. For example, significant management judgments are required in determining excess, obsolete, or unsalable inventory; the allowance for doubtful accounts; potential impairment of long-lived assets, goodwill and intangible assets; and the accounting for self-insurance reserves, warranty reserves, pension obligations, income taxes, environmental liabilities and contingencies. Future events, including the extent and duration of continued supply chain constraints and their related economic impacts, and their effects cannot be predicted with certainty, and, accordingly, the Company’s accounting estimates require the exercise of judgment. The accounting estimates used in the preparation of the Company’s condensed consolidated financial statements may change as new events occur, as more experience is acquired, as additional information is obtained and as the Company’s operating environment changes. The Company evaluates and updates its assumptions and estimates on an ongoing basis and may employ outside experts to assist in the Company’s evaluations. Actual results could differ from the estimates that the Company has used.
Recently Issued Accounting Standards and Recently Adopted Accounting Standards	Recently Issued Accounting Standards ASU 2023-07 On November 27, 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires public business entities ("PBEs") to disclose information about their reportable segments’ significant expenses on an interim and annual basis. The ASU is effective for fiscal years beginning after December 15, 2023, and interim periods beginning after December 15, 2024, with early adoption permitted. ASU 2023-09 On December 14, 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires entities to disclose more detailed information in their reconciliation of their statutory tax rate to their effective tax rate. PBEs are required to provide this incremental detail in a numerical, tabular format. The ASU also requires entities to disclose more detailed information about income taxes paid, including by jurisdiction; pretax income (or loss) from continuing operations; and income tax expense (or benefit). The ASU is effective for PBEs in fiscal years beginning after December 15, 2024, with early adoption permitted. ASUs 2024-03 & 2025-01 On November 4, 2024, the FASB issued ASU 2024-03, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires PBEs to disclose disaggregated information about certain income statement expense line items. On January 6, 2025, the FASB issued ASU 2025-01, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date, to clarify the effective date of ASU 2024-03, which is for fiscal years beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027. The new ASUs will not impact amounts recorded in the financial statements but instead, will require more detailed disclosures in the footnotes to the financial statement. The Company plans to provide the updated disclosures required by the ASUs in the periods in which they are effective.

Supplemental Financial Information (Tables)

3 Months Ended

Dec. 28, 2024

Condensed Financial Information [Abstract]

Inventories

The following table presents the components of inventories at the dates indicated:


(in thousands of dollars)	December 28, 2024		September 28, 2024
Raw materials	$	104,495	$	83,027
Work in process	38,256		32,556
Finished goods	20,369		12,215
Total inventories	$	163,120	$	127,798

Product Warranties

The following table reflects activity in accrued warranty cost (current and long-term portions combined) for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Balance at beginning of period	$	16,179	$	15,434
Add current period accruals	2,538		2,341
Current period reductions of accrual	(2,590)		(2,492)
Balance at end of period	$	16,127	$	15,283

Extended Warranties

The following table reflects activity in deferred warranty income (current and long-term portions combined), for the sale of extended warranties of two to five years, for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Balance at beginning of period	$	27,962	$	23,123
Add current period deferred income	3,929		2,998
Current period recognition of income	(2,332)		(2,003)
Balance at end of period	$	29,559	$	24,118

Self-Insurance

The following table reflects our total accrued self-insurance liability, comprised of workers' compensation and health insurance related claims, at the dates indicated:


(in thousands of dollars)	December 28, 2024		September 28, 2024
Current portion	$	4,723	$	5,008
Long-term portion	2,596		2,248
Total accrued self-insurance	$	7,319	$	7,256

Pension Expense

Components of net periodic pension benefit (income) expense were as follows for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Interest cost	$	1,312	$	1,484
Expected return on plan assets	(1,819)		(1,620)
Amortization of prior loss	70		172
Net periodic pension benefit (income) expense	$	(437)	$	36
Amortization of prior loss, recognized in other comprehensive income	(70)		(172)
Total recognized in net periodic pension benefit (income) expense and other comprehensive income	$	(507)	$	(136)

Debt (Tables)

3 Months Ended

Dec. 28, 2024

Debt Disclosure [Abstract]

Schedule of Term Debt Instruments

Term loan borrowings consisted of the following at the dates indicated:


(in thousands of dollars)	December 28, 2024		September 28, 2024
Term loan borrowings, net of deferred financing costs of $1,172 and $1,256, respectively	$	93,828	$	94,994
Less: current portion of long-term debt	5,000		5,000
Long-term debt, net of current portion	$	88,828	$	89,994

Schedule of Maturities of Long-term Debt

The schedule of remaining principal payments through maturity for the term loans is as follows:


(in thousands of dollars)
Fiscal Year	Principal Payments
2025	$	3,750
2026	5,000
2027	5,000
2028	5,000
2029	5,000
Thereafter	71,250
Total remaining principal payments	$	95,000

Segment Information (Tables)

3 Months Ended

Dec. 28, 2024

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Management evaluates the segments based primarily upon revenues and gross profit, which are reflected in the tables below for the periods presented:


Net sales
	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Bus (1)	$	288,147	$	293,437
Parts (1)	25,725		24,223
Segment net sales	$	313,872	$	317,660


Gross profit
	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Bus	$	47,172	$	51,294
Parts	13,145		12,264
Segment gross profit	$	60,317	$	63,558

Reconciliation of Operating Profit (Loss) from Segments to Consolidated

The following table is a reconciliation of segment gross profit to consolidated income before income taxes for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Segment gross profit	$	60,317	$	63,558
Adjustments:
Selling, general and administrative expenses	(27,275)		(25,602)
Interest expense	(1,915)		(3,631)
Interest income	1,568		1,088
Other income (expense), net	2,916		(1,221)
Loss on debt refinancing	—		(1,558)
Income before income taxes	$	35,611	$	32,634

Revenue from External Customers by Geographic Areas

Sales are attributable to geographic areas based on customer location and were as follows for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
U.S.	$	287,957	$	302,532
Canada	24,603		15,119
Rest of world	1,312		9
Total net sales	$	313,872	$	317,660

Revenue (Tables)

3 Months Ended

Dec. 28, 2024

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table disaggregates revenue by product category for the periods presented:


	Three Months Ended
(in thousands of dollars)	December 28, 2024		December 30, 2023
Diesel buses	$	124,372	$	84,998
Alternative power buses (1)	148,922		195,329
Other (2)	15,487		13,697


Parts	25,091		23,636
Net sales	$	313,872	$	317,660

(1) Includes buses sold with any power source other than diesel (e.g., gasoline, propane, compressed natural gas ("CNG") or electric).

(2) Includes shipping and handling revenue, extended warranty income, surcharges and chassis and bus shell sales

Earnings Per Share (Tables)

3 Months Ended

Dec. 28, 2024

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table presents the earnings per share computation for the periods presented:


	Three Months Ended
(in thousands except for share data)	December 28, 2024		December 30, 2023
Numerator:
Net income	$	28,722	$	26,150

Denominator:
Weighted-average common shares outstanding	32,227,723		32,170,779
Weighted-average dilutive securities, restricted stock	479,759		145,759
Weighted-average dilutive securities, stock options	249,233		100,170
Weighted-average dilutive securities, warrants	404,225		12,419

Weighted-average shares and dilutive potential common shares (1)	33,360,940		32,429,127

Earnings per share:
Basic earnings per share	$	0.89	$	0.81
Diluted earnings per share	$	0.86	$	0.81

Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Dec. 28, 2024

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table provides information on changes in accumulated other comprehensive loss ("AOCL") for the periods presented:


	Three Months Ended
(in thousands of dollars)	Defined Benefit Pension Plan		Total AOCL
December 28, 2024
Beginning Balance	$	(26,416)	$	(26,416)

Amounts reclassified and included in earnings	70		70
Total before taxes	70		70
Income taxes	(17)		(17)
Ending Balance December 28, 2024	$	(26,363)	$	(26,363)

December 30, 2023
Beginning Balance	$	(31,884)	$	(31,884)

Amounts reclassified and included in earnings	172		172
Total before taxes	172		172
Income taxes	(41)		(41)
Ending Balance December 30, 2023	$	(31,753)	$	(31,753)

Supplemental Financial Information - Inventories (Details) - USD ($) $ in Thousands	Dec. 28, 2024	Sep. 28, 2024
Condensed Financial Information [Abstract]
Raw materials	$ 104,495	$ 83,027
Work in process	38,256	32,556
Finished goods	20,369	12,215
Total inventories	$ 163,120	$ 127,798

Supplemental Financial Information - Product Warranty Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at beginning of period	$ 16,179	$ 15,434
Add current period accruals	2,538	2,341
Current period reductions of accrual	(2,590)	(2,492)
Balance at end of period	$ 16,127	$ 15,283

Supplemental Financial Information - Extended Warranty Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Movement in Extended Product Warranty Accrual [Roll Forward]
Balance at beginning of period	$ 27,962	$ 23,123
Add current period deferred income	3,929	2,998
Current period recognition of income	(2,332)	(2,003)
Balance at end of period	$ 29,559	$ 24,118

Supplemental Financial Information Remaining Performance Obligation (Details) $ in Millions	Dec. 28, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-12-29
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 8.6
Revenue, performance obligation, (in years)	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-12-28
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 13.6
Revenue, performance obligation, (in years)	1 year

Supplemental Financial Information - Self Insurance (Details) - USD ($) $ in Thousands	Dec. 28, 2024	Sep. 28, 2024
Condensed Financial Information [Abstract]
Current portion	$ 4,723	$ 5,008
Long-term portion	2,596	2,248
Total accrued self-insurance	$ 7,319	$ 7,256

Supplemental Financial Information - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Product Warranty Liability [Line Items]
Shipping and handling revenues	$ 313,872	$ 317,660
Minimum
Product Warranty Liability [Line Items]
Extended product warranty, period	2 years
Maximum
Product Warranty Liability [Line Items]
Extended product warranty, period	5 years
Shipping and Handling
Product Warranty Liability [Line Items]
Shipping and handling revenues	$ 5,100	4,700
Shipping and handling cost of goods sold	$ 4,600	$ 4,300

Supplemental Financial Information - Pension Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Condensed Financial Information [Abstract]
Interest cost	$ 1,312	$ 1,484
Expected return on plan assets	(1,819)	(1,620)
Amortization of prior loss	70	172
Net periodic pension benefit (income) expense	(437)	36
Amortization of prior loss, recognized in other comprehensive income	(70)	(172)
Total recognized in net periodic pension benefit (income) expense and other comprehensive income	$ (507)	$ (136)

Debt - Narrative (Details) - USD ($)	3 Months Ended
Debt - Narrative (Details) - USD ($)	Dec. 28, 2024	Dec. 30, 2023	Sep. 28, 2024
Debt Instrument [Line Items]
Interest expense	$ 1,900,000	$ 3,600,000
Senior Term Loan \| Senior Credit Facility
Debt Instrument [Line Items]
Long-term line of credit	$ 95,000,000.0		$ 96,300,000
Stated interest rate (as a percent)	6.40%		6.90%
Weighted average effective interest rate (as a percent)	7.00%		8.20%
Letters of Credit \| Line of Credit \| Senior Revolving Credit Facility
Debt Instrument [Line Items]
Remaining borrowing capacity	$ 143,300,000
Letters of credit, amount outstanding	6,700,000
Revolving credit facility \| Line of Credit \| Senior Revolving Credit Facility
Debt Instrument [Line Items]
Letters of credit, amount outstanding	$ 0

Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 28, 2024	Sep. 28, 2024
Debt Instrument [Line Items]
Current portion of long-term debt	$ 5,000	$ 5,000
Long-term debt	88,828	89,994
Senior Term Loan \| 2023 Term Loan
Debt Instrument [Line Items]
Total debt	93,828	94,994
Deferred financing costs	$ 1,172	$ 1,256

Debt - Maturity Schedule (Details) $ in Thousands	Dec. 28, 2024 USD ($)
Long-term Debt, Fiscal Year Maturity
2025	$ 3,750
2026	5,000
2027	5,000
2028	5,000
2029	5,000
Thereafter	71,250
Total debt	$ 95,000

Income Taxes (Details)	3 Months Ended
Income Taxes (Details)	Dec. 28, 2024	Dec. 30, 2023
Income Tax Disclosure [Abstract]
Effective tax rate (as a percent)	24.40%	25.90%
Statutory Federal income tax rate (as a percent)	21.00%	21.00%

Segment Information (Details) $ in Thousands	3 Months Ended
Segment Information (Details) $ in Thousands	Dec. 28, 2024 USD ($) segment	Dec. 30, 2023 USD ($)
Segment Reporting Information [Line Items]
Number of Operating Segments \| segment	2
Net sales	$ 313,872	$ 317,660
Gross profit	60,317	63,558
U.S.
Segment Reporting Information [Line Items]
Net sales	287,957	302,532
Canada
Segment Reporting Information [Line Items]
Net sales	24,603	15,119
Rest of world
Segment Reporting Information [Line Items]
Net sales	1,312	9
Operating Segments
Segment Reporting Information [Line Items]
Gross profit	60,317	63,558
Operating Segments \| Bus
Segment Reporting Information [Line Items]
Net sales	288,147	293,437
Gross profit	47,172	51,294
Operating Segments \| Parts
Segment Reporting Information [Line Items]
Net sales	25,725	24,223
Gross profit	13,145	12,264
Intersegment Eliminations \| Parts
Segment Reporting Information [Line Items]
Net sales	$ 1,900	$ 1,600

Segment Information - Reconciliation of Segment Gross Profit (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment gross profit	$ 60,317	$ 63,558
Selling, general and administrative expenses	(27,275)	(25,602)
Interest expense	(1,915)	(3,631)
Interest income	1,568	1,088
Other income (expense), net	2,916	(1,221)
Loss on debt refinancing	0	(1,558)
Income before income taxes	35,611	32,634
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment gross profit	60,317	63,558
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Selling, general and administrative expenses	(27,275)	(25,602)
Interest expense	(1,915)	(3,631)
Interest income	1,568	1,088
Other income (expense), net	2,916	(1,221)
Loss on debt refinancing	$ 0	$ (1,558)

Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
Revenue (Details) - USD ($) $ in Thousands	Dec. 28, 2024	Dec. 30, 2023
Disaggregation of Revenue [Line Items]
Net sales	$ 313,872	$ 317,660
Diesel buses
Disaggregation of Revenue [Line Items]
Net sales	124,372	84,998
Alternative fuel buses
Disaggregation of Revenue [Line Items]
Net sales	148,922	195,329
Other
Disaggregation of Revenue [Line Items]
Net sales	15,487	13,697
Parts
Disaggregation of Revenue [Line Items]
Net sales	$ 25,091	$ 23,636

Earnings Per Share - Summary of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income	$ 28,722	$ 26,150
Weighted-average common shares outstanding	32,227,723	32,170,779
Weighted average diluted securities, warrants	249,233	100,170
Weighted-average shares and dilutive potential common shares	33,360,940	32,429,127
Basic earnings per share (in dollars per share)	$ 0.89	$ 0.81
Diluted earnings per share (in dollars per share)	$ 0.86	$ 0.81
Restricted Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted-average dilutive securities	479,759	145,759
Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted-average dilutive securities	404,225	12,419

Earnings Per Share - Narrative (Details) shares in Millions	3 Months Ended
Earnings Per Share - Narrative (Details) shares in Millions	Dec. 30, 2023 shares
Earnings Per Share [Abstract]
Anti-dilutive securities excluded from computation of earnings per share (in shares)	0.2

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 159,564
Ending Balance	179,705
Defined Benefit Pension Plan
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(26,416)	$ (31,884)
Amounts reclassified and included in earnings	70	172
Total before taxes	70	172
Income taxes	(17)	(41)
Ending Balance	(26,363)	(31,753)
AOCI Attributable to Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(26,416)	(31,884)
Amounts reclassified and included in earnings	70	172
Total before taxes	70	172
Income taxes	(17)	(41)
Ending Balance	$ (26,363)	$ (31,753)

Stockholder Transaction Costs (Details) - USD ($)		3 Months Ended
Stockholder Transaction Costs (Details) - USD ($)	Dec. 14, 2023	Dec. 28, 2024	Dec. 30, 2023
Subsidiary, Sale of Stock [Line Items]
Common stock sold, price per share (in USD per share)	$ 25.10
Accrue common stock issuance costs		$ 0	$ 1,200,000
Private Placement
Subsidiary, Sale of Stock [Line Items]
Common stock sold (in shares)	2,500,000

Joint Ventures (Details) - USD ($)	1 Months Ended	3 Months Ended		12 Months Ended
Joint Ventures (Details) - USD ($)	Dec. 30, 2023	Dec. 28, 2024	Dec. 30, 2023	Sep. 30, 2023	Sep. 28, 2024
Schedule of Equity Method Investments [Line Items]
Equity in net income of non-consolidated affiliates		$ 1,804,000	$ 1,962,000
Equity investment in affiliates		34,393,000			$ 32,089,000
Equity investment in affiliates (Note 12)		$ 500,000	0
Micro Bird Holdings Inc.
Schedule of Equity Method Investments [Line Items]
Equity interest in equity method investment (as a percent)		50.00%
Equity in net income of non-consolidated affiliates		$ 2,100,000		$ 2,000,000
Equity investment in affiliates		$ 26,600,000			24,400,000
Clean Bus Solutions (CBS)
Schedule of Equity Method Investments [Line Items]
Equity interest in equity method investment (as a percent)		50.00%
Equity in net income of non-consolidated affiliates		$ (300,000)	0
Dividends		0	0
Equity investment in affiliates		7,800,000			$ 7,700,000
Fair value of warrants			$ 7,400,000
Equity investment in affiliates (Note 12)		500,000
Related party
Schedule of Equity Method Investments [Line Items]
Dividends	$ 3,000,000	$ 0

Stockholders' Equity - Narrative (Details) - USD ($)	3 Months Ended
Stockholders' Equity - Narrative (Details) - USD ($)	Dec. 28, 2024	Dec. 30, 2023	Sep. 28, 2024	Jan. 31, 2024
Equity [Abstract]
Authorized amount				$ 60,000,000
Term of share repurchase program	24 months
Share repurchases (Note 13) (in shares)	243,450
Share repurchases (Note 13)	$ 10,036,000	$ 0
Common Stock, Par Value (in dollars per share)	$ 0.0001		$ 0.0001
Remaining authorized repurchase amount	$ 40,000,000.0

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