<SEC-DOCUMENT>0001193125-25-213325.txt : 20250923
<SEC-HEADER>0001193125-25-213325.hdr.sgml : 20250923
<ACCEPTANCE-DATETIME>20250923161249
ACCESSION NUMBER:		0001193125-25-213325
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250915
FILED AS OF DATE:		20250923
DATE AS OF CHANGE:		20250923

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DEBRUNNER DAVID J
		CENTRAL INDEX KEY:			0001195803
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07933
		FILM NUMBER:		251333775

	MAIL ADDRESS:	
		STREET 1:		C/O ALLY FINANCIAL INC.
		STREET 2:		500 WOODWARD AVE., 10TH FLOOR
		CITY:			DETROIT
		STATE:			MI
		ZIP:			48226

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Aon plc
		CENTRAL INDEX KEY:			0000315293
		STANDARD INDUSTRIAL CLASSIFICATION:	INSURANCE AGENTS BROKERS & SERVICES [6411]
		ORGANIZATION NAME:           	02 Finance
		EIN:				981539969
		STATE OF INCORPORATION:			L2
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		15 GEORGES QUAY
		CITY:			DUBLIN 2
		STATE:			L2
		ZIP:			D02 VR98
		BUSINESS PHONE:		35312666000

	MAIL ADDRESS:	
		STREET 1:		15 GEORGES QUAY
		CITY:			DUBLIN 2
		STATE:			L2
		ZIP:			D02 VR98

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AON CORP
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COMBINED INTERNATIONAL CORP
		DATE OF NAME CHANGE:	19870504
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-09-15</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000315293</issuerCik>
        <issuerName>Aon plc</issuerName>
        <issuerTradingSymbol>AON</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001195803</rptOwnerCik>
            <rptOwnerName>DEBRUNNER DAVID J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 EAST RANDOLPH STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Principal Accounting Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Ordinary Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Colby Alexis - Colby Alexis pursuant to a power of attorney from David DeBrunner</signatureName>
        <signatureDate>2025-09-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>aon-ex24.htm
<DESCRIPTION>EX-24
<TEXT>
<!-- DFIN ActiveDisclosure (SM) HTML Document - http://www.dfinsolutions.com/ --><!-- Creation Date :2025-09-23T16:11:20.3015+00:00 --><!-- Copyright (c) 2025 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<html>
 <head>
  <title>EX-24</title>
 </head>
 <body style="padding:8px;margin:auto!important;z-index:0;-webkit-text-size-adjust:100%;position:relative;">
  <div style="z-index:2;min-height:0.6in;position:relative;"></div>
  <div class="main-content-container" style="z-index:5;position:relative;"><p style="font-size:10pt;margin-top:5pt;font-family:Times New Roman;margin-bottom:5pt;text-align:center;"><font style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">POWER OF ATTORNEY</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:5pt;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">I, David DeBrunner (&#x201c;Grantor&#x201d;), hereby confirm, constitute and appoint each of Darren Zeidel, Colby Alexis, Matthew Cavanaugh, Andr&eacute; Rouillard, and Elaine Natsis or any of them signing singly, and with full power of substitution, as the true and lawful attorney-in-fact of Grantor to:</font></p><div class="item-list-element-wrapper" style="margin-left:6.667%;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:12pt;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:2.57143775513484%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">1.</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">prepare, execute in Grantor&#x2019;s name and on Grantor&#x2019;s behalf, and submit to the United States Securities and Exchange Commission (the &#x201c;SEC&#x201d;) a Form ID, including amendments thereto, and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with the SEC of reports required by Section 16(a) of the Securities Exchange Act of 1934, as amended (the &#x201c;Exchange Act&#x201d;) or any rule or regulation promulgated by the SEC;</font></div></div><div class="item-list-element-wrapper" style="margin-left:6.667%;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:12pt;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:2.57143775513484%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">2.</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">serve as an Account Administrator for Grantor&#x2019;s account in the SEC&#x2019;s enhanced Electronic Data Gathering, Analysis, and Retrieval System (&#x201c;EDGAR Next&#x201d;);</font></div></div><div class="item-list-element-wrapper" style="margin-left:6.667%;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:12pt;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:2.57143775513484%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">3.</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">prepare, execute for and on behalf of Grantor, in Grantor&#x2019;s capacity as an officer, director or greater than ten percent shareholder of Aon plc (the &#x201c;Company&#x201d;), acknowledge, deliver and file Forms 3, 4 and 5, including but not limited to any amendments thereto, with the SEC in accordance with Section 16(a) of the Exchange Act, and the rules promulgated thereunder, which may be necessary or desirable as a result of Grantor&#x2019;s ownership of or transaction in securities of the Company; and  </font></div></div><div class="item-list-element-wrapper" style="margin-left:6.667%;text-indent:0.857%;font-size:0;margin-top:0;justify-content:flex-start;margin-bottom:12pt;min-width:0.796%;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:1.7185775663484515%;word-break:keep-all;text-indent:0;display:inline-flex;justify-content:flex-start;">4.</font><div style="display:inline;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">do and perform any and all acts for and on behalf of Grantor which, in the discretion of such attorney-in-fact, may be necessary or desirable to complete and execute any such Form 3, 4 or 5 or any amendments thereto, and timely file such forms with the SEC and any other stock exchange or similar authority. </font></div></div><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">Grantor 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&#x2019;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.  Grantor acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of Grantor, are not assuming, nor is the Company assuming, any of Grantor&#x2019;s responsibilities to comply with Section 16 of the Exchange Act.</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><font style="white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">This Power of Attorney shall be effective on the date set forth below and shall continue in full force and effect until the date on which Grantor shall cease to be subject to Section 16 of the Exchange Act and the rules promulgated thereunder or until such earlier date on which written notification executed by Grantor is filed with the SEC expressly revoking this Power of Attorney.</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><font style="white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">IN WITNESS WHEREOF, Grantor has caused this Power of Attorney to be executed as of August 19, 2025.</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><font style="white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="font-size:10pt;margin-top:0;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><font style="color:#000000;white-space:pre-wrap;font-size:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">Signature: 	/s/ David DeBrunner</font></p><p style="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:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">Name:	David DeBrunner</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:Arial;font-kerning:none;min-width:fit-content;">&#160;</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:Arial;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="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:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">Notary Signature and Seal to be Placed Here:</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:Arial;font-kerning:none;min-width:fit-content;">&#160;</font></p><p style="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:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">[Seal]</font></p><p style="margin-left:13.333%;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:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">Beth Ann Omodio</font></p><p style="margin-left:13.333%;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:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">Notary Public State of Michigan</font></p><p style="margin-left:13.333%;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:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">Monroe County</font></p><p style="margin-left:13.333%;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:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">My Commission Expires 11/20/2027</font></p><p style="margin-left:13.333%;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:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">Acting in the County of Wayne</font></p><p style="margin-left:13.333%;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:10.5pt;font-family:Arial;font-kerning:none;min-width:fit-content;">/s/ Beth Ann Omodio</font></p></div>
  <div style="z-index:2;flex-direction:column;display:flex;min-height:0.6in;justify-content:flex-end;position:relative;"></div>
  <hr style="margin-inline-start:auto;margin-inline-end:auto;page-break-after:always;">
 </body>
</html>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
