<SEC-DOCUMENT>0001140361-23-044358.txt : 20230918
<SEC-HEADER>0001140361-23-044358.hdr.sgml : 20230918
<ACCEPTANCE-DATETIME>20230918163439
ACCESSION NUMBER:		0001140361-23-044358
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20230914
FILED AS OF DATE:		20230918
DATE AS OF CHANGE:		20230918

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			AMERICAN SECURITIES LLC
		CENTRAL INDEX KEY:			0001475483
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36267
		FILM NUMBER:		231261575

	BUSINESS ADDRESS:	
		STREET 1:		590 MADISON AVENUE, 38TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212 476-8000

	MAIL ADDRESS:	
		STREET 1:		590 MADISON AVENUE, 38TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			American Securities Partners VII(B), L.P.
		CENTRAL INDEX KEY:			0001616822
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36267
		FILM NUMBER:		231261578

	BUSINESS ADDRESS:	
		STREET 1:		C/O AMERICAN SECURITIES ASSOCIATES VII,
		STREET 2:		299 PARK AVENUE, 34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171-8000
		BUSINESS PHONE:		212-476-8000

	MAIL ADDRESS:	
		STREET 1:		C/O AMERICAN SECURITIES ASSOCIATES VII,
		STREET 2:		299 PARK AVENUE, 34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171-8000

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			American Securities Partners VII(C), L.P.
		CENTRAL INDEX KEY:			0001616821
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36267
		FILM NUMBER:		231261577

	BUSINESS ADDRESS:	
		STREET 1:		C/O AMERICAN SECURITIES ASSOCIATES VII,
		STREET 2:		299 PARK AVENUE, 34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171-8000
		BUSINESS PHONE:		212-476-8000

	MAIL ADDRESS:	
		STREET 1:		C/O AMERICAN SECURITIES ASSOCIATES VII,
		STREET 2:		299 PARK AVENUE, 34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171-8000

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ASP BB Holdings LLC
		CENTRAL INDEX KEY:			0001676272
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36267
		FILM NUMBER:		231261581

	BUSINESS ADDRESS:	
		STREET 1:		299 PARK AVENUE, 34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171
		BUSINESS PHONE:		212-476-8000

	MAIL ADDRESS:	
		STREET 1:		299 PARK AVENUE, 34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			American Securities Partners VII, L.P.
		CENTRAL INDEX KEY:			0001616823
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36267
		FILM NUMBER:		231261579

	BUSINESS ADDRESS:	
		STREET 1:		C/O AMERICAN SECURITIES ASSOCIATES VII,
		STREET 2:		299 PARK AVENUE, 34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171-8000
		BUSINESS PHONE:		212-476-8000

	MAIL ADDRESS:	
		STREET 1:		C/O AMERICAN SECURITIES ASSOCIATES VII,
		STREET 2:		299 PARK AVENUE, 34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171-8000

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			American Securities Associates VII, LLC
		CENTRAL INDEX KEY:			0001676248
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36267
		FILM NUMBER:		231261576

	BUSINESS ADDRESS:	
		STREET 1:		299 PARK AVENUE
		STREET 2:		34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171
		BUSINESS PHONE:		212-476-8000

	MAIL ADDRESS:	
		STREET 1:		299 PARK AVENUE
		STREET 2:		34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ASP BB Investco LP
		CENTRAL INDEX KEY:			0001676268
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36267
		FILM NUMBER:		231261580

	BUSINESS ADDRESS:	
		STREET 1:		299 PARK AVENUE
		STREET 2:		34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171
		BUSINESS PHONE:		212-476-8000

	MAIL ADDRESS:	
		STREET 1:		299 PARK AVENUE
		STREET 2:		34TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Blue Bird Corp
		CENTRAL INDEX KEY:			0001589526
		STANDARD INDUSTRIAL CLASSIFICATION:	TRUCK & BUS BODIES [3713]
		IRS NUMBER:				463891989
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		3920 ARKWRIGHT ROAD
		STREET 2:		SUITE 200
		CITY:			MACON
		STATE:			GA
		ZIP:			31210
		BUSINESS PHONE:		478-822-2801

	MAIL ADDRESS:	
		STREET 1:		3920 ARKWRIGHT ROAD
		STREET 2:		SUITE 200
		CITY:			MACON
		STATE:			GA
		ZIP:			31210

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Hennessy Capital Acquisition Corp.
		DATE OF NAME CHANGE:	20131017
</SEC-HEADER>
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<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-09-14</periodOfReport>

    <issuer>
        <issuerCik>0001589526</issuerCik>
        <issuerName>Blue Bird Corp</issuerName>
        <issuerTradingSymbol>BLBD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001676272</rptOwnerCik>
            <rptOwnerName>ASP BB Holdings LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AMERICAN SECURITIES LLC</rptOwnerStreet1>
            <rptOwnerStreet2>590 MADISON AVENUE, 38TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001676268</rptOwnerCik>
            <rptOwnerName>ASP BB Investco LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AMERICAN SECURITIES LLC</rptOwnerStreet1>
            <rptOwnerStreet2>590 MADISON AVENUE, 38TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001616823</rptOwnerCik>
            <rptOwnerName>American Securities Partners VII, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AMERICAN SECURITIES LLC</rptOwnerStreet1>
            <rptOwnerStreet2>590 MADISON AVENUE, 38TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001616822</rptOwnerCik>
            <rptOwnerName>American Securities Partners VII(B), L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AMERICAN SECURITIES LLC</rptOwnerStreet1>
            <rptOwnerStreet2>590 MADISON AVENUE, 38TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001616821</rptOwnerCik>
            <rptOwnerName>American Securities Partners VII(C), L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AMERICAN SECURITIES LLC</rptOwnerStreet1>
            <rptOwnerStreet2>590 MADISON AVENUE, 38TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001676248</rptOwnerCik>
            <rptOwnerName>American Securities Associates VII, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AMERICAN SECURITIES LLC</rptOwnerStreet1>
            <rptOwnerStreet2>590 MADISON AVENUE, 38TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001475483</rptOwnerCik>
            <rptOwnerName>AMERICAN SECURITIES LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>590 MADISON AVENUE, 38TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-09-14</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1262500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>21</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6542650</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Sold by ASP BB Holdings LLC (&quot;Holdings&quot;) in an underwritten registered public offering.  In connection with such sale and in respect of certain fees, Holdings also received a payment of $265,125 from the Issuer.</footnote>
        <footnote id="F2">The shares are owned directly by ASP BB Holdings LLC and may also be deemed to be indirectly beneficially owned by (i) ASP BB Investco LP, the sole member of Holdings (&quot;Investco&quot;), (ii) American Securities Partners VII, L.P., American Securities Partners VII(B), L.P. and American Securities Partners VII(C), L.P., the owners of partnership interests in Investco (each, a &quot;Sponsor&quot;), (iii) American Securities Associates VII, LLC, as general partner of the Sponsors (&quot;GP&quot;), and (iv) American Securities LLC, which provides investment advisory services to each Sponsor.</footnote>
        <footnote id="F3">Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of such Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.</footnote>
    </footnotes>

    <remarks>Remarks: Exhibit 99.1 (Joint Filer Information) is incorporated herein by reference.</remarks>

    <ownerSignature>
        <signatureName>ASP BB Holdings LLC By: /s/ Eric L. Schondorf, as Vice President and Secretary</signatureName>
        <signatureDate>2023-09-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>ASP BB Investco LP By: ASP Manager Corp., its general partner By: /s/ Eric L. Schondorf, as Vice President and Secretary</signatureName>
        <signatureDate>2023-09-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>American Securities Partners VII, L.P. By: American Securities Associates VII, LLC, its general partner By: /s/ Michael G. Fisch, as Managing Member</signatureName>
        <signatureDate>2023-09-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>American Securities Partners VII(B), L.P. By: American Securities Associates VII, LLC, its general partner By: /s/ Michael G. Fisch, as Managing Member</signatureName>
        <signatureDate>2023-09-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>American Securities Partners VII(C), L.P. By: American Securities Associates VII, LLC, its general partner By: /s/ Michael G. Fisch, as Managing Member</signatureName>
        <signatureDate>2023-09-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>American Securities Associates VII, LLC By: /s/ Michael G. Fisch, as Managing Member</signatureName>
        <signatureDate>2023-09-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>American Securities LLC By: /s/ Michael G. Fisch, as President and Chief Executive Officer</signatureName>
        <signatureDate>2023-09-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ef20010794_ex99-1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
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      <div style="text-align: right; font-weight: bold;">Exhibit 99.1</div>
      <div><br>
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      <div style="text-align: center;"><u>Joint Filer Information</u></div>
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              <div>Name of Joint Filer:</div>
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              <div>ASP BB Investco LP</div>
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              <div>Address:</div>
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            <td style="width: 50.07%; vertical-align: top;">&#160;</td>
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              <div>590 Madison Avenue, 38th Floor</div>
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              <div>New York, NY 10022</div>
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              <div>Relationship of Joint Filer to Issuer:</div>
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              <div>10% Owner</div>
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            <td style="width: 50.07%; vertical-align: top;">
              <div>Issuer Name and Ticker or Trading Symbol:</div>
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              <div>Blue Bird Corporation [BLBD]</div>
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              <div>Date of Earliest Transaction Required to be Reported</div>
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              <div style="margin-left: 9pt;">(Month/Day/Year):</div>
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              <div>September 18, 2023</div>
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              <div>Designated Filer:</div>
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            <td style="width: 49.93%; vertical-align: top;">
              <div>ASP BB Holdings LLC</div>
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            <td style="width: 50%; vertical-align: top;">
              <div>Name of Joint Filer:</div>
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            <td style="width: 50%; vertical-align: top;">
              <div>American Securities Partners VII, L.P.</div>
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            <td style="width: 50%; vertical-align: top;">
              <div>Address:</div>
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            <td style="width: 50%; vertical-align: top;">
              <div>c/o American Securities LLC</div>
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            <td style="width: 50%; vertical-align: top;">&#160;</td>
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              <div>590 Madison Avenue, 38th Floor</div>
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            <td style="width: 50%; vertical-align: top;">&#160;</td>
            <td style="width: 50%; vertical-align: top;">
              <div>New York, NY 10022</div>
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            <td style="width: 50%; vertical-align: top;">
              <div>Relationship of Joint Filer to Issuer:</div>
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            <td style="width: 50%; vertical-align: top;">
              <div>10% Owner</div>
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            <td style="width: 50%; vertical-align: top;">
              <div>Issuer Name and Ticker or Trading Symbol:</div>
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            <td style="width: 50%; vertical-align: top;">
              <div>Blue Bird Corporation [BLBD]</div>
            </td>
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          <tr>
            <td style="width: 50%; vertical-align: top;">
              <div>Date of Earliest Transaction Required to be Reported</div>
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            <td style="width: 50%; vertical-align: top;">&#160;</td>
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              <div style="margin-left: 9pt;">(Month/Day/Year):</div>
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              <div>September 18, 2023</div>
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              <div>Designated Filer:</div>
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              <div>ASP BB Holdings LLC</div>
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              <div>Name of Joint Filer:</div>
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              <div>American Securities Partners VII(B), L.P.</div>
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              <div>Address:</div>
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              <div>c/o American Securities LLC</div>
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          <tr>
            <td style="width: 50.07%; vertical-align: top;">&#160;</td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>590 Madison Avenue, 38th Floor</div>
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          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">&#160;</td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>New York, NY 10022</div>
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          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Relationship of Joint Filer to Issuer:</div>
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            <td style="width: 49.93%; vertical-align: top;">
              <div>10% Owner</div>
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          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Issuer Name and Ticker or Trading Symbol:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>Blue Bird Corporation [BLBD]</div>
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          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Date of Earliest Transaction Required to be Reported</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div style="margin-left: 9pt;">(Month/Day/Year):</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>September 18, 2023</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Designated Filer:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>ASP BB Holdings LLC</div>
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          </tr>

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          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Name of Joint Filer:</div>
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            <td style="width: 49.93%; vertical-align: top;">
              <div>American Securities Partners VII(C), L.P.</div>
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            <td style="width: 50.07%; vertical-align: top;">
              <div>Address:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>c/o American Securities LLC</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">&#160;</td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>590 Madison Avenue, 38th Floor</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">&#160;</td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>New York, NY 10022</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Relationship of Joint Filer to Issuer:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>10% Owner</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Issuer Name and Ticker or Trading Symbol:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>Blue Bird Corporation [BLBD]</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Date of Earliest Transaction Required to be Reported</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div style="margin-left: 9pt;">(Month/Day/Year):</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>September 18, 2023</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Designated Filer:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>ASP BB Holdings LLC</div>
            </td>
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          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Name of Joint Filer:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>American Securities Associates VII, LLC&#160;</div>
            </td>
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          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Address:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>c/o American Securities LLC</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">&#160;</td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>590 Madison Avenue, 38th Floor</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">&#160;</td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>New York, NY 10022</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Relationship of Joint Filer to Issuer:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>10% Owner</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Issuer Name and Ticker or Trading Symbol:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>Blue Bird Corporation [BLBD]</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Date of Earliest Transaction Required to be Reported</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div style="margin-left: 9pt;">(Month/Day/Year):</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>September 18, 2023</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Designated Filer:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>ASP BB Holdings LLC</div>
            </td>
          </tr>

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      <div><br>
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          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Name of Joint Filer:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>American Securities LLC</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">Address:<br>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>590 Madison Avenue, 38th Floor</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">&#160;</td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>New York, NY 10022</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;" rowspan="1">&#160;</td>
            <td style="width: 49.93%; vertical-align: top;" rowspan="1">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Relationship of Joint Filer to Issuer:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>10% Owner</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Issuer Name and Ticker or Trading Symbol:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>Blue Bird Corporation [BLBD]</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Date of Earliest Transaction Required to be Reported</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">&#160;</td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div style="margin-left: 9pt;">(Month/Day/Year):</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>September 18, 2023</div>
            </td>
          </tr>
          <tr>
            <td style="width: 50.07%; vertical-align: top;">
              <div>Designated Filer:</div>
            </td>
            <td style="width: 49.93%; vertical-align: top;">
              <div>ASP BB Holdings LLC</div>
            </td>
          </tr>

      </table>
      <div><br>
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</SEC-DOCUMENT>
