[Form 4] Blue Bird Corp Insider Trading Activity

Blue Bird Corp Chief Operating Officer Jeffrey Scott Sanfrey exercised stock options and sold shares.

Rhea-AI Filing Summary

Blue Bird Corp Chief Operating Officer Jeffrey Scott Sanfrey exercised stock options and sold shares. On March 4, 2026, he converted 5,192 options into 5,192 common shares at $12.35 per share, then sold 5,192 shares at a weighted average price of $58.54, leaving 39,011 shares directly owned.

Insider Trade Summary

Exercise and Sale: 5,192 shares ($240K approx. pre-tax spread)

Exercise and Sale 3 txns

Insider Sanfrey Jeffrey Scott

Role Chief Operating Officer

Sold 5,192 shs ($304K)

Approx. gross sale proceeds $304K

Approx. exercise cost $64K

Approx. pre-tax spread $240K

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy)	5,192	$0.00	$0.00
Exercise	Common Stock, par value $0.0001 per share	5,192	$12.35	$64K
Sale	Common Stock, par value $0.0001 per share	5,192	$58.54	$304K

Holdings After Transaction: Stock Option (right to buy) — 0 contracts (Direct); Common Stock, par value $0.0001 per share — 39,011 shares (Direct)

Footnotes (1)

1. F1. The price reported in Column 4 is a weighted average price resulting from shares sold in multiple transactions on March 4, 2026, at prices ranging from $58.48 to $58.59, inclusive. The reporting person undertakes to provide to Blue Bird Corporation, any security holder of Blue Bird Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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Accepted by SEC EDGAR 03/05/2026 - 10:44 AM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sanfrey Jeffrey Scott

(Last) (First) (Middle)

3920 ARKWRIGHT ROAD

SUITE 200

(Street)

MACON GA 31210

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Blue Bird Corp [ BLBD ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.0001 per share	03/04/2026		M		5,192	A	$12.35	44,203	D
Common Stock, par value $0.0001 per share	03/04/2026		S		5,192	D	$58.54(1)	39,011	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	$12.35	03/04/2026		M			5,192	12/12/2025	12/12/2032	Common Stock, par value $0.0001 per share	5,192	$0	0	D

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price resulting from shares sold in multiple transactions on March 4, 2026, at prices ranging from $58.48 to $58.59, inclusive. The reporting person undertakes to provide to Blue Bird Corporation, any security holder of Blue Bird Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Remarks:

	/s/ Matthew Meziere as attorney-in-fact	03/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.