<SEC-DOCUMENT>0001213900-25-116094.txt : 20251128
<SEC-HEADER>0001213900-25-116094.hdr.sgml : 20251128
<ACCEPTANCE-DATETIME>20251128161520
ACCESSION NUMBER:		0001213900-25-116094
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20251126
FILED AS OF DATE:		20251128
DATE AS OF CHANGE:		20251128

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Moore Patrick Q
		CENTRAL INDEX KEY:			0001640619
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10551
		FILM NUMBER:		251535984

	MAIL ADDRESS:	
		STREET 1:		625 ELMWOOD DRIVE NE
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30306

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OMNICOM GROUP INC.
		CENTRAL INDEX KEY:			0000029989
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-ADVERTISING AGENCIES [7311]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				131514814
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		280 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
		BUSINESS PHONE:		2124153600

	MAIL ADDRESS:	
		STREET 1:		280 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OMNICOM GROUP INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DOYLE DANE BERNBACH GROUP INC
		DATE OF NAME CHANGE:	19861117

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DOYLE DANE BERNBACH INTERNATIONAL INC
		DATE OF NAME CHANGE:	19850604
</SEC-HEADER>
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<TYPE>3
<SEQUENCE>1
<FILENAME>ownership.xml
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<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-11-26</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000029989</issuerCik>
        <issuerName>OMNICOM GROUP INC.</issuerName>
        <issuerTradingSymbol>OMC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001640619</rptOwnerCik>
            <rptOwnerName>Moore Patrick Q</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O OMNICOM GROUP INC.</rptOwnerStreet1>
            <rptOwnerStreet2>280 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Exhibit 24 - Power of Attorney.</remarks>

    <ownerSignature>
        <signatureName>/s/ Eric J. Cleary, Attorney-in-Fact for Patrick Moore</signatureName>
        <signatureDate>2025-11-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
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<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>ea026736803ex24_omnicom.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; text-indent: 0in"><B>Exhibit 24</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><B>POWER OF ATTORNEY</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 5.75pt 0pt 5.6pt; text-align: justify; text-indent: 27.75pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in">Know all
by these presents, that the undersigned hereby constitutes and appoints Eric J. Cleary, and any other duly appointed Secretary or Assistant
Secretary of Omnicom Group Inc. (the &ldquo;Company&rdquo;), the undersigned&rsquo;s true and lawful attorney-in-fact to:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 19.9pt 0pt 47.25pt; text-align: justify; text-indent: -13.9pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in; text-align: left">(1)</TD><TD STYLE="text-align: justify">execute for and on behalf of the undersigned, in the undersigned&rsquo;s
capacity as an officer and/or director of the Company, Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange
Act of 1934 and the rules thereunder&#894; and</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 19.9pt 0pt 47.25pt; text-align: justify">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.5in"></TD><TD STYLE="width: 0.25in">(2)</TD><TD STYLE="padding-top: 0pt; text-align: justify; padding-right: 0pt; padding-left: 0pt; text-indent: 0pt">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, complete and execute any amendment or amendments thereto,
and timely file such form with the SEC and any stock exchange or similar authority.</TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 23.3pt 0pt 47.25pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in">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&rsquo;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&rsquo;s
responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 5.75pt 0pt 0; text-align: justify; text-indent: 27.75pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in">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&rsquo;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.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 5.75pt 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0.5in">IN WITNESS WHEREOF,
the undersigned has caused this Power of Attorney to be executed as of this 25<SUP>th</SUP> day of November, 2025.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 5.75pt 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 5.75pt 0pt 0; text-align: justify; text-indent: 0.5in"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
  <TD STYLE="width: 60%">&nbsp;</TD>
  <TD STYLE="border-bottom: Black 1.5pt solid; width: 40%">/s/ Patrick
Q. Moore</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
  <TD>&nbsp;</TD>
  <TD><B>Patrick Q. Moore</B></TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 5.75pt 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 5.75pt 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 5.75pt 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

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