<SEC-DOCUMENT>0000001750-25-000005.txt : 20251201
<SEC-HEADER>0000001750-25-000005.hdr.sgml : 20251201
<ACCEPTANCE-DATETIME>20251201131625
ACCESSION NUMBER:		0000001750-25-000005
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20251128
FILED AS OF DATE:		20251201
DATE AS OF CHANGE:		20251201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WALFISH MARC JAY
		CENTRAL INDEX KEY:			0001212698
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06263
		FILM NUMBER:		251538703

	MAIL ADDRESS:	
		STREET 1:		1100 N. WOOD DALE ROAD
		CITY:			WOOD DALE
		STATE:			IL
		ZIP:			60191

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AAR CORP
		CENTRAL INDEX KEY:			0000001750
		STANDARD INDUSTRIAL CLASSIFICATION:	AIRCRAFT & PARTS [3720]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				362334820
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0531

	BUSINESS ADDRESS:	
		STREET 1:		1100 N WOOD DALE RD
		CITY:			WOOD DALE
		STATE:			IL
		ZIP:			60191
		BUSINESS PHONE:		6302272000

	MAIL ADDRESS:	
		STREET 1:		1100 N WOOD DALE RD
		CITY:			WOOD DALE
		STATE:			IL
		ZIP:			60191

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLEN AIRCRAFT RADIO INC
		DATE OF NAME CHANGE:	19700204
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-11-28</periodOfReport>

    <issuer>
        <issuerCik>0000001750</issuerCik>
        <issuerName>AAR CORP</issuerName>
        <issuerTradingSymbol>AIR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001212698</rptOwnerCik>
            <rptOwnerName>WALFISH MARC JAY</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1100 N. WOOD DALE ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WOOD DALE</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60191</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>83.21</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-11-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>436</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>83.21</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2025-11-28</value>
            </exerciseDate>
            <expirationDate>
                <value>2050-11-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>436</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>53442</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each share of phantom stock is the economic equivalent of one share of common stock. The shares of phantom stock become payable, in cash or common stock, at the election of the reporting person, upon the reporting person's termination of service as a director or on other dates as specified by the director pursuant to the Non-Employee Directors' Deferred Compensation Plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Katherine Kwiat, power of attorney</signatureName>
        <signatureDate>2025-12-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>doc1.htm
<DESCRIPTION>POWER OF ATTORNEY: POWER OF ATTORNEY
<TEXT>
<HTML><HEAD><TITLE>WALFISH JAY  POA</TITLE></HEAD><BODY style="font-family:Bookman Old Style"><TABLE CELLSPACING="0" BORDER="0" WIDTH="588"><TR><TD VALIGN="TOP" COLSPAN="3"><H1 ALIGN="RIGHT" STYLE="font-size:140%">EXHIBIT 24</H1></TD></TR><TR height="10"><td><div /></td></TR><TR height="10"><td><div /></td></TR><TR><TD VALIGN="TOP" COLSPAN="3"><H1 ALIGN="center" STYLE="font-size:140%">AAR CORP</H1><H2 ALIGN="CENTER" STYLE="font-size:120%">Power of Attorney<BR />
							for Executing Forms 3, 4 and 5</H2></TD></TR><TR height="10"><td><div /></td></TR><TR><TD VALIGN="TOP" COLSPAN="3"><dd />Know
								all men by these presents, that the undersigned, director or officer, or
								both, of AAR CORP, hereby constitutes
								and appoints each of Katherine Kwiat, Jessica Garascia, Kim Loies, Jamie Brown,
								signing singly, the undersigned's true and lawful attorney-in-fact to:
						</TD></TR><TR height="10"><td><div /></td></TR><TR><TD WIDTH="16%" VALIGN="TOP" ALIGN="center">
								(1)
						</TD><TD WIDTH="84%" VALIGN="TOP" COLSPAN="2">
								execute for and on behalf of the undersigned, in the undersigned's capacity
								as an officer and/or director of AAR CORP (the "Company"),
								Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange
								Act of 1934 and the rules thereunder;
						</TD></TR><TR height="10"><td><div /></td></TR><TR><TD WIDTH="16%" VALIGN="TOP" ALIGN="center">
								(2)
						</TD><TD WIDTH="84%" VALIGN="TOP" COLSPAN="2">
							do and perform any and all acts for and on behalf of the undersigned which may
							be necessary or desirable to complete and execute any such Form 3, 4 or 5 and
							timely file such form with the United States Securities and Exchange Commission
							and any stock exchange or similar authority; and
						</TD></TR><TR height="10"><td><div /></td></TR><TR><TD WIDTH="16%" VALIGN="TOP" ALIGN="center">
								(3)
						</TD><TD WIDTH="84%" VALIGN="TOP" COLSPAN="2">
							take any other action of any type whatsoever in connection with the foregoing
							which, in the opinion of such attorney-in-fact, may be of benefit to, in the
							best interest of, or legally required by, the undersigned, it being understood
							that the documents executed by such attorney-in-fact on behalf of the undersigned
							pursuant to this Power of Attorney shall be in such form and shall contain such
							terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's
							discretion.
						</TD></TR><TR height="10"><td><div /></td></TR><TR><TD VALIGN="TOP" COLSPAN="3"><dd />The
								undersigned hereby grants to each such attorney-in-fact full power and authority
								to do and perform any and every act and thing whatsoever requisite, necessary,
								or proper to be done in the exercise of any of the rights and powers herein
								granted, as fully to all intents and purposes as the undersigned might or could
								do if personally present, with full power of substitution or revocation, hereby
								ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's
								substitute or substitutes, shall lawfully do or cause to be done by virtue of
								this power of attorney and the rights and powers herein granted. The undersigned
								acknowledges that the foregoing attorneys-in-fact, in serving in such capacity
								at the request of the undersigned, are not assuming, nor is the Company assuming,
								any of the undersigned's responsibilities to comply with Section 16 of the Securities
								Exchange Act of 1934.
						</TD></TR><TR height="10"><td><div /></td></TR><TR><TD VALIGN="TOP" COLSPAN="3"><dd />This
								Power of Attorney shall remain in full force and effect until the undersigned
								is no longer required to file Forms 3, 4 and 5 with respect to the
								undersigned's holdings of and transactions in securities of AAR CORP
								unless earlier revoked by the undersigned in a signed writing
								delivered to the foregoing attorneys-in-fact.
						</TD></TR><TR height="10"><td><div /></td></TR><TR><TD VALIGN="TOP" COLSPAN="3"><dd />IN
								WITNESS WHEREOF, the undersigned has executed this Power of Attorney as of this 10<sup>th</sup>
								day of January, 2023</TD></TR><TR height="10"><td><div /></td></TR></TABLE><table border="0" width="100%" cellpadding="1" WIDTH="588"><tr><td rowspan="2" width="64%" /><td style="border-bottom: solid black 1px" width="36%">
						/s/ WALFISH JAY</td></tr><tr><td>WALFISH JAY</td></tr></table></BODY></HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
