<SEC-DOCUMENT>0001193125-25-270200.txt : 20251106
<SEC-HEADER>0001193125-25-270200.hdr.sgml : 20251106
<ACCEPTANCE-DATETIME>20251106173955
ACCESSION NUMBER:		0001193125-25-270200
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20251104
FILED AS OF DATE:		20251106
DATE AS OF CHANGE:		20251106

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Graff Michael
		CENTRAL INDEX KEY:			0001299926
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32833
		FILM NUMBER:		251459787

	MAIL ADDRESS:	
		STREET 1:		C/O TRANSDIGM GROUP INC.
		STREET 2:		1350 EUCLID AVE, SUITE 1600
		CITY:			CLEVELAND
		STATE:			OH
		ZIP:			44115

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TransDigm Group INC
		CENTRAL INDEX KEY:			0001260221
		STANDARD INDUSTRIAL CLASSIFICATION:	AIRCRAFT PART & AUXILIARY EQUIPMENT, NEC [3728]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				510484716
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		1350 EUCLID AVENUE
		STREET 2:		SUITE 1600
		CITY:			CLEVELAND
		STATE:			OH
		ZIP:			44115
		BUSINESS PHONE:		216 706 2960

	MAIL ADDRESS:	
		STREET 1:		1350 EUCLID AVENUE
		STREET 2:		SUITE 1600
		CITY:			CLEVELAND
		STATE:			OH
		ZIP:			44115

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TD HOLDING CORP
		DATE OF NAME CHANGE:	20030818
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-11-04</periodOfReport>

    <issuer>
        <issuerCik>0001260221</issuerCik>
        <issuerName>TransDigm Group INC</issuerName>
        <issuerTradingSymbol>TDG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001299926</rptOwnerCik>
            <rptOwnerName>Graff Michael</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>102 PRINCE STREET</rptOwnerStreet1>
            <rptOwnerStreet2>FLOOR 5</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10012</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1291.97</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-11-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>518</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2035-11-04</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>518</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>518</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These options are exercisable at 20% per year over five years beginning September 30, 2026 subject to the achievement of annual operating performance targets in each year.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Rachel L. Quinlan as attorney in fact for Michael Graff</signatureName>
        <signatureDate>2025-11-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.POA
<SEQUENCE>2
<FILENAME>tdg-ex24_poa.htm
<DESCRIPTION>EX-24.POA
<TEXT>
<!-- DFIN ActiveDisclosure (SM) HTML Document - http://www.dfinsolutions.com/ --><!-- Creation Date :2025-11-06T17:39:15.1827+00:00 --><!-- Copyright (c) 2025 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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  <title>EX-24.PoA</title>
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  <div class="main-content-container" style="z-index:5;position:relative;"><p style="margin-left:31.44%;font-size:10pt;margin-top:3.85pt;font-family:Times New Roman;margin-bottom:0;margin-right:31.509%;text-align:center;"><font style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">POWER OF ATTORNEY</font></p><p style="font-size:10pt;margin-top:0.3pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:10.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="margin-left:1.107%;text-indent:6.66%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">Know all by these presents, that the undersigned hereby constitutes and appoints each of Armani Vadiee, Rachel Quinlan, Lisa Tortora-French, and Adrienne McFaye signing singly, the undersigned's true and lawful attorney-in-fact to:</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:10.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p><div class="item-list-element-wrapper" style="margin-left:7.731%;text-indent:8%;font-size:0;margin-top:0;justify-content:flex-start;margin-bottom:0;margin-right:8.935%;min-width:6.667%;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:4.047946764352057%;word-break:keep-all;text-indent:0;display:inline-flex;justify-content:flex-start;">1.</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">execute for and on behalf of the undersigned, in the undersigned's capacity as an officer and/or director of TransDigm Group Incorporated, a Delaware corporation (the &#34;Company&#34;), Form ID and Forms 3, 4 and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder; and</font></div></div><p style="font-size:10pt;margin-top:0.3pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:10.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p><div class="item-list-element-wrapper" style="margin-left:7.731%;text-indent:8.091%;font-size:0;margin-top:0;justify-content:flex-start;margin-bottom:0;margin-right:9.87%;min-width:6.667%;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:4.047946764352057%;word-break:keep-all;text-indent:0;display:inline-flex;justify-content:flex-start;">2.</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">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 ID and Form 3, 4 or 5, complete and execute any amendment or amendments thereto, and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority.</font></div></div><p style="font-size:10pt;margin-top:0.3pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:10.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="margin-left:1.093%;text-indent:6.686%;font-size:10pt;margin-top:0.05pt;font-family:Times New Roman;margin-bottom:0;margin-right:0.796%;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">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&shy; 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.</font></p><p style="font-size:10pt;margin-top:0.1pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="margin-left:1.107%;text-indent:6.62%;font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">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 issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.</font></p><p style="font-size:10pt;margin-top:0.45pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="margin-left:1.16%;text-indent:6.65%;font-size:10pt;margin-top:0.05pt;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="color:#000000;white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of the date set forth below.</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:left;"><font style="white-space:pre-wrap;font-size:11.5pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">&#160;</font></p>
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