<SEC-DOCUMENT>0001193125-19-009423.txt : 20190115
<SEC-HEADER>0001193125-19-009423.hdr.sgml : 20190115
<ACCEPTANCE-DATETIME>20190115081606
ACCESSION NUMBER:		0001193125-19-009423
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20190115
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190115
DATE AS OF CHANGE:		20190115

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MARSH & MCLENNAN COMPANIES, INC.
		CENTRAL INDEX KEY:			0000062709
		STANDARD INDUSTRIAL CLASSIFICATION:	INSURANCE AGENTS BROKERS & SERVICES [6411]
		IRS NUMBER:				362668272
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05998
		FILM NUMBER:		19526238

	BUSINESS ADDRESS:	
		STREET 1:		1166 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		2123455000

	MAIL ADDRESS:	
		STREET 1:		1166 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MARSH & MCLENNAN COMPANIES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MARLENNAN CORP
		DATE OF NAME CHANGE:	19760505
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d683916d8k.htm
<DESCRIPTION>FORM 8-K
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<TITLE>Form 8-K</TITLE>
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<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Washington, D.C. 20549 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>FORM <FONT
STYLE="white-space:nowrap">8-K</FONT> </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>CURRENT
REPORT </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Pursuant to Section&nbsp;13 or 15(d) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>of the Securities Exchange Act of 1934 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Date of report (Date of earliest event reported) January&nbsp;15, 2019 </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>Marsh&nbsp;&amp; McLennan Companies, Inc. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Exact Name of Registrant as Specified in its Charter) </B></P> <P STYLE="margin-top:0pt;margin-bottom:0pt" ALIGN="center">


<IMG SRC="g683916g0111233449154.jpg" ALT="LOGO">
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<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" ALIGN="center"><B>Delaware</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B><FONT STYLE="white-space:nowrap">1-5998</FONT></B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B><FONT STYLE="white-space:nowrap">36-2668272</FONT></B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(State or Other Jurisdiction</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>of Incorporation)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Commission</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>File Number)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(IRS Employer</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Identification No.)</B></P></TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" COLSPAN="3" ALIGN="center"><B>1166 Avenue of the Americas, New York, NY</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center"><B>10036</B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="top" COLSPAN="3" ALIGN="center"><B>(Address of Principal Executive Offices)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>(Zip Code)</B></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Registrant&#146;s telephone number, including area code (212)
<FONT STYLE="white-space:nowrap">345-5000</FONT> </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Check the
appropriate box below if the Form <FONT STYLE="white-space:nowrap">8-K</FONT> filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Soliciting material pursuant to Rule <FONT STYLE="white-space:nowrap">14a-12</FONT> under the Exchange Act (17
CFR <FONT STYLE="white-space:nowrap">240.14a-12)</FONT> </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><FONT STYLE="white-space:nowrap">Pre-commencement</FONT> communications pursuant to Rule <FONT
STYLE="white-space:nowrap">14d-2(b)</FONT> under the Exchange Act (17 CFR <FONT STYLE="white-space:nowrap">240.14d-2(b))</FONT> </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">&#9744;</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><FONT STYLE="white-space:nowrap">Pre-commencement</FONT> communications pursuant to Rule <FONT
STYLE="white-space:nowrap">13e-4(c)</FONT> under the Exchange Act (17 CFR <FONT STYLE="white-space:nowrap">240.13e-4(c))</FONT> </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933
(&#167;230.405 of this chapter) or Rule <FONT STYLE="white-space:nowrap">12b-2</FONT> of the Securities Exchange Act of 1934 <FONT STYLE="white-space:nowrap">(&#167;240.12b-2</FONT> of this chapter). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Emerging growth company&nbsp;&nbsp;&#9744; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying
with any new or revised financial accounting standards provided pursuant to Section&nbsp;13(a) of the Exchange Act.&nbsp;&nbsp;&#9744; </P> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
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<TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&nbsp;1.01</B></TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Entry into a Material Definitive Agreement </B></P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On January&nbsp;15, 2019, Marsh&nbsp;&amp; McLennan Companies, Inc. (the &#147;Company&#148;) closed its previously announced sale of
$700&nbsp;million aggregate principal amount of its 3.500% Senior Notes due 2020, $1,000&nbsp;million aggregate principal amount of its 3.875% Senior Notes due 2024, $1,250&nbsp;million aggregate principal amount of its 4.375% Senior Notes due 2029,
$500&nbsp;million aggregate principal amount of its 4.750% Senior Notes due 2039, $1,250&nbsp;million aggregate principal amount of its 4.900% Senior Notes due 2049 and $300&nbsp;million aggregate principal amount of its Floating Rate Senior Notes
due 2021 (together, the &#147;Notes&#148;). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes were registered under the Company&#146;s effective shelf registration statement on
Form <FONT STYLE="white-space:nowrap">S-3</FONT> (Registration <FONT STYLE="white-space:nowrap">No.&nbsp;333-226427)</FONT> under the Securities Act of 1933, as amended, as filed with the Securities and Exchange Commission on July&nbsp;30, 2018 and
were offered by means of the Company&#146;s prospectus dated July&nbsp;30, 2018, as supplemented by the prospectus supplement dated January&nbsp;8, 2019. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes were issued on January&nbsp;15, 2019 pursuant to the Indenture dated July&nbsp;15, 2011, by and between the Company and The Bank of
New York Mellon, as trustee (the &#147;Trustee&#148;), filed as Exhibit 4.1 to the Company&#146;s Quarterly Report on Form <FONT STYLE="white-space:nowrap">10-Q</FONT> for the quarter ended June&nbsp;30, 2011, as supplemented by an Eleventh
Supplemental Indenture (the &#147;Supplemental Indenture&#148;), dated as of January&nbsp;15, 2019, by and between the Company and the Trustee (attached hereto as Exhibit 4.1 and incorporated herein by reference). The forms of the Notes are attached
hereto as Exhibits 4.2 through 4.7 and are incorporated herein by reference. In connection with the closing of the offering of the Floating Rate Senior Notes due 2021, the Company also entered into a calculation agency agreement (the
&#147;Calculation Agency Agreement&#148;), dated as of January&nbsp;15, 2019, with The Bank of New York Mellon, as calculation agent (attached hereto as Exhibit 4.8 and incorporated herein by reference). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The foregoing descriptions of the Supplemental Indenture, the Notes and the Calculation Agency Agreement contained herein are summaries and
are qualified in their entirety by the Supplemental Indenture, the forms of the Notes and the Calculation Agency Agreement attached hereto as Exhibits 4.1 through 4.8, respectively. </P>
<P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&nbsp;8.01</B></TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Other Events </B></P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">A copy of the opinion of Davis Polk&nbsp;&amp; Wardwell LLP, counsel to the Company, relating to the legality of the Notes is filed as Exhibit
5.1 hereto. </P> <P STYLE="font-size:18pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&nbsp;9.01</B></TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Financial Statements and Exhibits </B></P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>(d) Exhibits </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"><B>Exhibit<BR>No.</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; "><B>Description</B></P></TD></TR>


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<TD HEIGHT="8" COLSPAN="2"></TD></TR>
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<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.1</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Eleventh Supplemental Indenture, dated January&nbsp;15, 2019, between Marsh&nbsp;&amp; McLennan Companies, Inc. and The Bank of New York Mellon, as trustee.</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.2</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Form of 3.500% Senior Notes due 2020 (included in Exhibit 4.1 above).</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.3</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Form of 3.875% Senior Notes due 2024 (included in Exhibit 4.1 above).</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.4</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Form of 4.375% Senior Notes due 2029 (included in Exhibit 4.1 above).</B></TD></TR></TABLE>
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<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.5</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Form of 4.750% Senior Notes due 2039 (included in Exhibit 4.1 above).</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.6</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Form of 4.900% Senior Notes due 2049 (included in Exhibit 4.1 above).</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.7</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Form of Floating Rate Senior Notes due 2021 (included in Exhibit 4.1 above).</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.8</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Calculation Agency Agreement, dated January&nbsp;15, 2019, between Marsh&nbsp;&amp; McLennan Companies, Inc. and The Bank of New York Mellon, as calculation agent.</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;5.1</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Opinion of Davis Polk&nbsp;&amp; Wardwell LLP.</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>23.1</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Consent of Davis Polk&nbsp;&amp; Wardwell (included in Exhibit 5.1 above).</B></TD></TR>
</TABLE>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>EXHIBIT INDEX </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD></TD>
<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD WIDTH="92%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="border-bottom:1.00pt solid #000000">Exhibit<BR>No.</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; ">Exhibit</P></TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.1</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B><A HREF="d683916dex41.htm">Eleventh Supplemental Indenture, dated January&nbsp;15, 2019, between Marsh&nbsp;&amp; McLennan Companies, Inc. and The Bank of New York Mellon, as trustee. </A></B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.2</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B><A HREF="d683916dex41.htm">Form of 3.500% Senior Notes due 2020 (included in Exhibit 4.1 above). </A></B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.3</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B><A HREF="d683916dex41.htm">Form of 3.875% Senior Notes due 2024 (included in Exhibit 4.1 above). </A></B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.4</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B><A HREF="d683916dex41.htm">Form of 4.375% Senior Notes due 2029 (included in Exhibit 4.1 above). </A></B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.5</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B><A HREF="d683916dex41.htm">Form of 4.750% Senior Notes due 2039 (included in Exhibit 4.1 above). </A></B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.6</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B><A HREF="d683916dex41.htm">Form of 4.900% Senior Notes due 2049 (included in Exhibit 4.1 above). </A></B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.7</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B><A HREF="d683916dex41.htm">Form of Floating Rate Senior Notes due 2021 (included in Exhibit 4.1 above). </A></B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;4.8</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B><A HREF="d683916dex48.htm">Calculation Agency Agreement, dated January&nbsp;15, 2019, between Marsh&nbsp;&amp; McLennan Companies, Inc. and The Bank of New York Mellon, as calculation agent. </A></B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>&nbsp;&nbsp;5.1</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B><A HREF="d683916dex51.htm">Opinion of Davis Polk&nbsp;&amp; Wardwell LLP.</A></B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP><B>23.1</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B><A HREF="d683916dex51.htm">Consent of Davis Polk&nbsp;&amp; Wardwell (included in Exhibit 5.1 above).</A></B></TD></TR>
</TABLE>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SIGNATURES </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD WIDTH="87%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">MARSH&nbsp;&amp; MCLENNAN COMPANIES, INC.</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">By:</P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">/s/ Katherine J. Brennan</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Name:</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Katherine J. Brennan</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Title:</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Deputy General Counsel,</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Chief Compliance Officer &amp;</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Corporate Secretary</P></TD></TR>
</TABLE></DIV> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Date: January&nbsp;15, 2019 </P>
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<TYPE>EX-4.1
<SEQUENCE>2
<FILENAME>d683916dex41.htm
<DESCRIPTION>EX-4.1
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 4.1 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC., </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Issuer, </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">and </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">The Bank of New York Mellon, </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Trustee </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ELEVENTH
SUPPLEMENTAL INDENTURE </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Dated as of January&nbsp;15, 2019 </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">$700,000,000
aggregate principal amount of 3.500% Senior Notes due 2020 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">$1,000,000,000 aggregate principal amount of 3.875% Senior Notes due 2024 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">$1,250,000,000 aggregate principal amount of 4.375% Senior Notes due 2029 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">$500,000,000 aggregate principal amount of 4.750% Senior Notes due 2039 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">$1,250,000,000 aggregate principal amount of 4.900% Senior Notes due 2049 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">$300,000,000 aggregate principal amount of Floating Rate Senior Notes due 2021 </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">ELEVENTH SUPPLEMENTAL INDENTURE, dated as of January&nbsp;15, 2019 between MARSH&nbsp;&amp;
McLENNAN COMPANIES, INC., a Delaware corporation (the &#147;<B>Issuer</B>&#148;), and THE BANK OF NEW YORK MELLON, a New York banking corporation, as Trustee (the &#147;<B>Trustee</B>&#148;). </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">W I T N E S S E T H: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS,
the Issuer and the Trustee executed and delivered an Indenture, dated as of July&nbsp;15, 2011 (the &#147;<B>Base Indenture</B>&#148; and, as supplemented hereby, the &#147;<B>Indenture</B>&#148;), to provide for the issuance by the Issuer from time
to time of senior debt securities evidencing its unsecured indebtedness, to be issued in one or more series as provided in the Indenture; </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, pursuant to a Board Resolution, the Issuer has authorized the issuance of a series of securities evidencing its senior indebtedness,
consisting initially of $700,000,000 aggregate principal amount of 3.500% Senior Notes due 2020 (the &#147;<B>2020 Original Notes</B>&#148; and, together with all the Additional 2020 Notes (as defined herein), if any, hereinafter referred to, the
&#147;<B>2020 Notes</B>&#148;); </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, pursuant to a Board Resolution, the Issuer has authorized the issuance of a series of securities
evidencing its senior indebtedness, consisting initially of $1,000,000,000 aggregate principal amount of 3.875% Senior Notes due 2024 (the &#147;<B>2024 Original Notes</B>&#148; and, together with all the Additional 2024 Notes (as defined herein),
if any, hereinafter referred to, the &#147;<B>2024 Notes</B>&#148;); </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, pursuant to a Board Resolution, the Issuer has authorized
the issuance of a series of securities evidencing its senior indebtedness, consisting initially of $1,250,000,000 aggregate principal amount of 4.375% Senior Notes due 2029 (the &#147;<B>2029 Original Notes</B>&#148; and, together with all the
Additional 2029 Notes (as defined herein), if any, hereinafter referred to, the &#147;<B>2029 Notes</B>&#148;); </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, pursuant to a
Board Resolution, the Issuer has authorized the issuance of a series of securities evidencing its senior indebtedness, consisting initially of $500,000,000 aggregate principal amount of 4.750% Senior Notes due 2039 (the &#147;<B>2039 Original
Notes</B>&#148; and, together with all the Additional 2039 Notes (as defined herein), if any, hereinafter referred to, the &#147;<B>2039 Notes</B>&#148;); </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, pursuant to a Board Resolution, the Issuer has authorized the issuance of a series of securities evidencing its senior indebtedness,
consisting initially of $1,250,000,000 aggregate principal amount of 4.900% Senior Notes due 2049 (the &#147;<B>2049 Original Notes</B>&#148; and, together with all the Additional 2049 Notes (as defined herein), if any, hereinafter referred to, the
&#147;<B>2049 Notes</B>&#148;); </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, pursuant to a Board Resolution, the Issuer has authorized the issuance of a series of securities
evidencing its senior indebtedness, consisting initially of $300,000,000 aggregate principal amount of Floating Rate Senior Notes due 2021 (the &#147;<B>Original Floating Rate Notes</B>&#148; and, together with all the
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">1 </P>

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Additional Floating Rate Notes (as defined herein), if any, hereinafter referred to, the &#147;<B>Floating Rate Notes</B>&#148;). The 2020 Notes, 2024 Notes, 2029 Notes, 2039 Notes, 2049 Notes
and Floating Rate Notes are hereinafter referred to as the &#147;<B>Notes</B>&#148;. The 2020 Original Notes, 2024 Original Notes, 2029 Original Notes, 2039 Original Notes, 2049 Original Notes and Original Floating Rate Notes are hereinafter
referred to as the &#147;<B>Original Notes</B>&#148;; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, the entry into this Eleventh Supplemental Indenture by the parties hereto
is in all respects authorized by the provisions of the Indenture; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, the Issuer desires to establish the respective terms of the
Notes of each series in accordance with Section&nbsp;2.01 of the Indenture and to establish the respective forms of the Notes of each series in accordance with Section&nbsp;2.02 of the Indenture; and </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, all acts and requirements necessary to make this Eleventh Supplemental Indenture a valid and legally binding indenture and agreement
according to its terms have been done. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">NOW, THEREFORE, for and in consideration of the premises, the Issuer and the Trustee mutually
covenant and agree for the equal and proportionate benefit of the respective holders from time to time of the Notes as follows: </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 1
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Section&nbsp;1.01<I>. Terms of Notes. </I>The following terms relating to the Notes are hereby established: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) The 2020 Notes shall constitute a series of securities having the title &#147;<B>3.500% Senior Notes due 2020</B>&#148;. The 2024 Notes
shall constitute a series of securities having the title &#147;<B>3.875% Senior Notes due 2024</B>&#148;. The 2029 Notes shall constitute a series of securities having the title &#147;<B>4.375% Senior Notes due 2029</B>&#148;. The 2039 Notes shall
constitute a series of securities having the title &#147;<B>4.750% Senior Notes due 2039</B>&#148;. The 2049 Notes shall constitute a series of securities having the title &#147;<B>4.900% Senior Notes due 2049</B>&#148;. The Floating Rate Notes
shall constitute a series of securities having the title &#147;<B>Floating Rate Senior Notes due 2021</B>&#148;. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) The aggregate
principal amount of the 2020 Original Notes that may be authenticated and delivered under the Indenture (except for 2020 Notes authenticated and delivered upon registration of, transfer of, or in exchange for, or in lieu of, other 2020 Notes
pursuant to Sections 2.05, 2.06, 2.07 or 9.04 of the Base Indenture) shall be up to $700,000,000. The aggregate principal amount of the 2024 Original Notes that may be authenticated and delivered under the Indenture (except for 2024 Notes
authenticated and delivered upon registration of, transfer of, or in exchange for, or in lieu of, other 2024 Notes pursuant to Sections </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
2.05, 2.06, 2.07 or 9.04 of the Base Indenture) shall be up to $1,000,000,000. The aggregate principal amount of the 2029 Original Notes that may be authenticated and delivered under the
Indenture (except for 2029 Notes authenticated and delivered upon registration of, transfer of, or in exchange for, or in lieu of, other 2029 Notes pursuant to Sections 2.05, 2.06, 2.07 or 9.04 of the Base Indenture) shall be up to $1,250,000,000.
The aggregate principal amount of the 2039 Original Notes that may be authenticated and delivered under the Indenture (except for 2039 Notes authenticated and delivered upon registration of, transfer of, or in exchange for, or in lieu of, other 2039
Notes pursuant to Sections 2.05, 2.06, 2.07 or 9.04 of the Base Indenture) shall be up to $500,000,000. The aggregate principal amount of the 2049 Original Notes that may be authenticated and delivered under the Indenture (except for 2049 Notes
authenticated and delivered upon registration of, transfer of, or in exchange for, or in lieu of, other 2049 Notes pursuant to Sections 2.05, 2.06, 2.07 or 9.04 of the Base Indenture) shall be up to $1,250,000,000. The aggregate principal amount of
the Original Floating Rate Notes that may be authenticated and delivered under the Indenture (except for Floating Rate Notes authenticated and delivered upon registration of, transfer of, or in exchange for, or in lieu of, other Floating Rate Notes
pursuant to Sections 2.05, 2.06, 2.07 or 9.04 of the Base Indenture) shall be up to $300,000,000. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) The entire outstanding principal of
the 2020 Notes shall be payable on December&nbsp;29, 2020 plus any unpaid interest accrued to such date. The entire outstanding principal of the 2024 Notes shall be payable on March&nbsp;15, 2024 plus any unpaid interest accrued to such date. The
entire outstanding principal of the 2029 Notes shall be payable on March&nbsp;15, 2029 plus any unpaid interest accrued to such date. The entire outstanding principal of the 2039 Notes shall be payable on March&nbsp;15, 2039 plus any unpaid interest
accrued to such date. The entire outstanding principal of the 2049 Notes shall be payable on March&nbsp;15, 2049 plus any unpaid interest accrued to such date. The entire outstanding principal of the Floating Rate Notes shall be payable on
December&nbsp;29, 2021 plus any unpaid interest accrued to such date. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">(d) (i) The rate at which the 2020 Notes shall bear interest shall
be 3.500% per annum; the date from which interest shall accrue on the 2020 Notes shall be January&nbsp;15, 2019 or from the most recent Interest Payment Date to which interest has been paid; the Interest Payment Dates for the 2020 Notes on which
interest will be payable shall be June 29 and December&nbsp;29 in each year, beginning June&nbsp;29, 2019; the regular record dates for the interest payable on the Notes on any Interest Payment Date shall be the June&nbsp;14 or December&nbsp;14
immediately preceding the applicable Interest Payment Date; and the basis upon which interest on the 2020 Notes shall be calculated shall be that of a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve <FONT
STYLE="white-space:nowrap">30-day</FONT> months. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) The rate at which the 2024 Notes shall bear interest shall be 3.875%
per annum; the date from which interest shall accrue on the 2024 Notes shall be January&nbsp;15, 2019 or from the most recent Interest Payment Date to which interest has been paid; the Interest Payment Dates for the 2024 Notes on which interest will
be payable shall be March&nbsp;15 and September&nbsp;15 in each year, beginning September&nbsp;15, 2019; the regular record dates for the interest payable on the Notes on any Interest Payment Date shall be the February&nbsp;28 or August&nbsp;31
immediately preceding the applicable Interest Payment Date; and the basis upon which interest on the 2024 Notes shall be calculated shall be that of a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve <FONT
STYLE="white-space:nowrap">30-day</FONT> months. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) The rate at which the 2029 Notes shall bear interest shall be
4.375% per annum; the date from which interest shall accrue on the 2029 Notes shall be January&nbsp;15, 2019 or from the most recent Interest Payment Date to which interest has been paid; the Interest Payment Dates for the 2029 Notes on which
interest will be payable shall be March&nbsp;15 and September&nbsp;15 in each year, beginning September&nbsp;15, 2019; the regular record dates for the interest payable on the Notes on any Interest Payment Date shall be the February&nbsp;28 or
August&nbsp;31 immediately preceding the applicable Interest Payment Date; and the basis upon which interest on the 2029 Notes shall be calculated shall be that of a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve <FONT
STYLE="white-space:nowrap">30-day</FONT> months. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iv) The rate at which the 2039 Notes shall bear interest shall be 4.750%
per annum; the date from which interest shall accrue on the 2039 Notes shall be January&nbsp;15, 2019 or from the most recent Interest Payment Date to which interest has been paid; the Interest Payment Dates for the 2039 Notes on which interest will
be payable shall be March&nbsp;15 and September&nbsp;15 in each year, beginning September&nbsp;15, 2019; the regular record dates for the interest payable on the Notes on any Interest Payment Date shall be the February&nbsp;28 or August&nbsp;31
immediately preceding the applicable Interest Payment Date; and the basis upon which interest on the 2039 Notes shall be calculated shall be that of a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve <FONT
STYLE="white-space:nowrap">30-day</FONT> months. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(v) The rate at which the 2049 Notes shall bear interest shall be 4.900%
per annum; the date from which interest shall accrue on the 2049 Notes shall be January&nbsp;15, 2019 or from the most recent Interest Payment Date to which interest has been paid; the Interest Payment Dates for the 2049 Notes on which interest will
be payable shall be March&nbsp;15 and September&nbsp;15 in each year, beginning September&nbsp;15, 2019; the regular record dates for the interest payable on the Notes on any Interest Payment Date shall be the February&nbsp;28 or August&nbsp;31
immediately preceding the applicable Interest Payment Date; and the basis upon which interest on the 2049 Notes shall be calculated shall be that of a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve <FONT
STYLE="white-space:nowrap">30-day</FONT> months. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(vi) The rate at which the Floating Rate Notes shall bear interest shall be
as determined by the Calculation Agent (as defined below) in accordance with <U>Section</U><U></U><U>&nbsp;1.01(d)(vii)</U>, subject to the maximum interest rate permitted by New York law (as the same may be modified by United States law of general
application). Interest on the Floating Rate Notes for any interest period shall be equal to LIBOR on the Interest Determination Date for such interest period, plus 1.200%. The date from which interest shall accrue on the Floating Rate Notes shall be
January&nbsp;15, 2019 or from the most recent Interest Payment Date to which interest has been paid; the Interest Payment Dates for the Floating Rate Notes on which interest will be payable shall be March&nbsp;29, June&nbsp;29, September&nbsp;29 and
December&nbsp;29 in each year, beginning March&nbsp;29, 2019; the regular record dates for the interest payable on the Floating Rate Notes on any Interest Payment Date shall be 15 calendar days immediately preceding the applicable Interest Payment
Date. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(vii) Promptly upon determination, the Calculation Agent will inform the Trustee (if the Trustee is not then serving
as the Calculation Agent) and the Issuer of the interest rate for the next interest period for the Floating Rate Notes. Absent willful misconduct, bad faith or manifest error, the determination of the interest rate by the Calculation Agent shall be
binding and conclusive on the respective holders of the Floating Rate Notes, the Trustee and the Issuer. Upon request from any holder of Floating Rate Notes, the Calculation Agent will provide the interest rate in effect for the Floating Rate Notes
for the current interest period and, if it has been determined, the interest rate to be in effect for the next interest period. The accrued interest for any period shall be calculated by multiplying the principal amount of a Floating Rate Note by an
accrued interest factor. The accrued interest factor shall be computed by adding the interest factor calculated for each day in the period for which accrued interest is being calculated. The interest factor (expressed as a decimal rounded upwards if
necessary) shall be computed by dividing the interest rate (expressed as a decimal rounded upwards if necessary) applicable to such date by 360. All percentages resulting from any calculation of the interest rate with respect to the Floating Rate
Notes will be rounded, if necessary, to the nearest <FONT STYLE="white-space:nowrap">one-hundred</FONT> thousandth of a percentage point, with five <FONT STYLE="white-space:nowrap">one-millionths</FONT> of a percentage point rounded upward (e.g.,
9.876545% (or .09876545) would be rounded to 9.87655% (or .0987655) and 9.876544 (or .09876544) would be rounded to 9.87654% (or .0987654)). Dollar amounts resulting from such calculation shall be rounded to the nearest cent, with <FONT
STYLE="white-space:nowrap">one-half</FONT> cent being rounded upward. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">(e) (i) The 2020 Notes may be redeemed in whole at any time or in part from time to time, at
the option of the Issuer. The redemption price (the &#147;<B>Redemption Price</B>&#148;) of the 2020 Notes to be redeemed shall be equal to the greater of (1) 100% of the principal amount of the 2020 Notes to be redeemed and (2)&nbsp;the sum, as
determined by an Independent Investment Banker, of the present values of the remaining scheduled payments of principal and interest on the 2020 Notes to be redeemed that would be due, discounted to the date of redemption on a semi-annual basis
(assuming a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve <FONT STYLE="white-space:nowrap">30-day</FONT> months) at the then current Treasury Rate plus the Applicable Spread (as defined below) for the 2020 Notes, plus, in
each case, accrued and unpaid interest on the principal amount of the 2020 Notes being redeemed to but excluding the redemption date. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) Each of the 2024 Notes, the 2029 Notes, the 2039 Notes and the 2049 Notes may be redeemed in whole at any time or in part
from time to time, at the option of the Issuer. The Redemption Price of each such series of Notes to be redeemed shall be calculated as follows, plus, in each case, accrued and unpaid interest on the principal amount of such series of Notes being
redeemed to but excluding the redemption date: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:13%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(A) If the redemption date is prior to the Applicable Par Call Date (as
defined below) for such series of Notes, the Notes to be redeemed may be redeemed by the Issuer at a Redemption Price equal to the greater of (1) 100% of the principal amount of the Notes to be redeemed and (2)&nbsp;the sum, as determined by an
Independent Investment Banker, of the present values of the remaining scheduled payments of principal of and interest on the Notes to be redeemed that would be due if the Notes matured on the Applicable Par Call Date for such series of Notes
(exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve
<FONT STYLE="white-space:nowrap">30-day</FONT> months) at the then current Treasury Rate plus the Applicable Spread for such series of Notes. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:13%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(B) If the redemption date is on or after the Applicable Par Call Date for such series of Notes, the Notes to be redeemed may
be redeemed by the Issuer at a Redemption Price equal to 100% of the principal amount of the Notes to be redeemed. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii)
On and after the Applicable Par Call Date for the Floating Rate Notes, the Floating Rate Notes may be redeemed in whole at any time or in part from time to time, at the option of the Issuer. The Redemption Price of the Floating Rate Notes to be
redeemed shall be equal to 100% of the principal amount of the Floating Rate Notes to be redeemed plus accrued and unpaid interest on the principal amount of the Floating Rate Notes being redeemed to but excluding the redemption date. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iv) (A) In case the Issuer shall desire to exercise such right to redeem
all or, as the case may be, a portion of any series of the Notes in accordance with Section&nbsp;1.01(e)(i)-(iii) above, the Issuer shall, or shall cause the Trustee to, give notice of such redemption to holders of the Notes to be redeemed by
transmitting a notice of such redemption not less than 30 days and not more than 60 days before the date fixed for redemption to such holders. Any notice that is delivered in the manner herein provided shall be conclusively presumed to have been
duly given, whether or not the registered holder received the notice. In any case, failure duly to give such notice to the holder of any Note designated for redemption in whole or in part, or any defect in the notice, shall not affect the validity
of the proceedings for the redemption of any other Note. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:8%; font-size:10pt; font-family:Times New Roman">(B) Each such notice of redemption shall specify the series and
amount of Notes to be redeemed, the date fixed for redemption and the applicable Redemption Price at which the Notes to be redeemed are to be redeemed, and shall state that payment of the Redemption Price of such Notes to be redeemed will be made at
the office or agency of the Issuer in the Borough of Manhattan, the City and State of New York, upon presentation and surrender of such Notes, that interest accrued to the date fixed for redemption will be paid as specified in said notice and, that
from and after said date interest will cease to accrue; except that interest shall continue to accrue on any Note or portion thereof with respect to which the Issuer defaults in the payment of such Redemption Price and accrued interest. If less than
all the Notes of a series are to be redeemed, the notice to the holders of the Notes of that series to be redeemed in whole or in part shall specify the particular Notes to be redeemed. In case any Notes are to be redeemed in part only, the notice
that relates to such Notes shall state the portion of the principal amount thereof to be redeemed, and shall state that on and after the redemption date, upon surrender of such security, a new Note of such series in principal amount equal to the
unredeemed portion thereof will be issued. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:8%; font-size:10pt; font-family:Times New Roman">(C) If the Trustee is to provide notice to the holders of the Notes in
accordance with this Section&nbsp;1.01(e)(iv), for a partial or full redemption, the Issuer shall give the Trustee at least 45 days&#146; notice in advance of the date fixed for redemption as to the aggregate principal amount of Notes of such series
to be redeemed, and thereupon, in the case of a partial redemption, the Notes of such series to be redeemed </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">7 </P>

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will be selected in accordance with the procedures of the Depositary in a manner that provides for the selection of a portion or portions (equal to two thousand U.S. dollars ($2,000) or integral
multiples of $1,000 in excess thereof) of the principal amount of the Notes of such series of a denomination larger than $2,000. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:8%; font-size:10pt; font-family:Times New Roman">(D) The Issuer may, if and whenever it shall so elect, by delivery of instructions signed on its behalf by its President or any
Vice President, instruct the Trustee or any paying agent to call all or any part of a series of Notes for redemption and to give notice of redemption in the manner set forth in this Section, such notice to be in the name of the Issuer or its own
name as the Trustee or such paying agent may deem advisable. In any case in which notice of redemption is to be given by the Trustee or any such paying agent, the Issuer shall deliver or cause to be delivered to, or permit to remain with, the
Trustee or such paying agent, as the case may be, such Security Register, transfer books or other records, or suitable copies or extracts therefrom, sufficient to enable the Trustee or such paying agent to give any notice that may be required under
the provisions of this Section. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:8%; font-size:10pt; font-family:Times New Roman">(E) Subject to Section&nbsp;2.11 of the Base Indenture, the Issuer shall not be required
(i)&nbsp;to issue, register the transfer of or exchange any Notes of the applicable series during a period beginning at the opening of business 15 days before the day of the delivery of a notice of redemption of the Notes of such series selected for
redemption and ending at the close of business on the day of such delivery, or (ii)&nbsp;to register the transfer of or exchange any Notes of such series so selected for redemption in whole or in part, except the unredeemed portion of any such Notes
being redeemed in part. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:8%; font-size:10pt; font-family:Times New Roman">(F) If the giving of notice of redemption shall have been completed as above provided, the Notes
or portions of the Notes to be redeemed specified in such notice shall become due and payable on the date and at the place stated in such notice at the applicable Redemption Price, and interest on such Notes shall cease to accrue on and after the
date fixed for redemption, unless the Issuer shall default in the payment of such Redemption Price and accrued interest. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f) (i) If, (A)&nbsp;the Acquisition (as defined below) is not completed by the parties to the Cooperation Agreement (as
defined below) on or prior to December&nbsp;31, 2019, (B) the Cooperation Agreement is terminated or (C)&nbsp;the Issuer notifies the Trustee that it will not pursue the consummation of the Acquisition (each, a &#147;<B>Special Mandatory Redemption
Event</B>&#148;), then the Issuer shall redeem all of the 2020 Notes, the 2024 Notes, the 2029 Notes, the 2039 Notes and the Floating Rate Notes (collectively, the &#147;<B>Special Mandatory Redemption </B>
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">8 </P>

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<B>Notes</B>&#148;) on the Special Mandatory Redemption Date at a special mandatory redemption price equal to 101% of the aggregate principal amount of the Special Mandatory Redemption Notes to
be redeemed, plus accrued and unpaid interest from and including the date of initial issuance, or the most recent date to which interest has been paid, whichever is later, to but not including the Special Mandatory Redemption Date (the
&#147;<B>Special Mandatory Redemption Price</B>&#148;). </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) Upon the occurrence of a Special Mandatory Redemption Event,
promptly, but in no event more than five (5)&nbsp;Business Days (as defined below), following such Special Mandatory Redemption Event, the Issuer shall deliver notice to the Trustee of such special mandatory redemption and the date upon which such
Special Mandatory Redemption Notes will be redeemed, which shall be no later than the third (3<SUP STYLE="font-size:85%; vertical-align:top">rd</SUP>) Business Day following the date of such notice (the &#147;<B>Special Mandatory Redemption
Date</B>&#148;), together with a notice of Special Mandatory Redemption, which shall be delivered in the name and at the expense of the Issuer. The Trustee shall promptly mail, or electronically deliver, the Special Mandatory Redemption Notice (as
defined below), according to the procedures of The Depository Trust Company, to each registered holder of Special Mandatory Redemption Notes to be redeemed at such holder&#146;s registered address. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) If funds sufficient to pay the Special Mandatory Redemption Price of all of the Special Mandatory Redemption Notes to be
redeemed on the Special Mandatory Redemption Date are deposited with a Paying Agent or the Trustee on or before such Special Mandatory Redemption Date, then on and after such Special Mandatory Redemption Date, the Special Mandatory Redemption Notes
shall cease to bear interest and, other than the right to receive the Special Mandatory Redemption Price, all rights under such Special Mandatory Redemption Notes shall terminate. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iv) Notwithstanding anything to the contrary, the Cooperation Agreement may be amended and the form of the Acquisition may be
modified at any time, in each case, without the consent of any holder of the Special Mandatory Redemption Notes. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g) As used herein: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Acquisition</B>&#148; means the Issuer&#146;s pending acquisition of Jardine Lloyd Thomson Group plc. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">9 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Applicable Par Call Date</B>&#148; means, (i)&nbsp;with respect to the 2024 Notes,
February&nbsp;15, 2024 (one month prior to the stated maturity date of such Notes), (ii) with respect to the 2029 Notes, December&nbsp;15, 2028 (three months prior to the stated maturity date of such Notes), (iii) with respect to the 2039 Notes,
September&nbsp;15, 2038 (six months prior to the stated maturity date of such Notes), (iv) with respect to the 2049 Notes, September&nbsp;15, 2048 (six months prior to the stated maturity date of such Notes), and (v)&nbsp;with respect to the
Floating Rate Notes, December&nbsp;29, 2019. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Applicable Spread</B>&#148; means, (i)&nbsp;with respect to the 2020 Notes, 15
basis points, (ii)&nbsp;with respect to the 2040 Notes, 20 basis points, (iii)&nbsp;with respect to the 2029 Notes, 25 basis points, (iv)&nbsp;with respect to the 2039 Notes, 30 basis points, and (v)&nbsp;with respect to the 2049 Notes, 30 basis
points. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Business Day</B>&#148; means any day that is not a Saturday, Sunday or other day on which commercial banks in New York,
New York are authorized or required by law to remain closed. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Calculation Agent</B>&#148; means The Bank of New York Mellon, or
such successor calculation agent as the Issuer appoints. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Cooperation Agreement</B>&#148; means that certain Cooperation
Agreement, dated as of September&nbsp;18, 2018, by and among the Issuer, MMC Treasury Holdings (UK) Limited, a wholly-owned subsidiary of the Issuer, and Jardine Lloyd Thomson Group plc. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Issue</B>&#148; means, with respect to a series of Notes, the United States Treasury security selected by the
Independent Investment Banker as having an actual or interpolated maturity comparable to the remaining term of the Notes of such series to be redeemed (assuming for this purpose, that the Notes matured on the Applicable Par Call Date for such series
of Notes or, in the case of the 2020 Notes, on the maturity date for such series of Notes) that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of
comparable maturity to the remaining term of such Notes. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Price</B>&#148; means, with respect to any
redemption date, (1)&nbsp;the average of the Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2)&nbsp;if the Independent Investment Banker is provided
with fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Independent Investment
Banker</B>&#148; means one of the Reference Treasury Dealers appointed by the Issuer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Interest Determination Date</B>&#148;
means, for any interest period, two London Business Days prior to the applicable Interest Reset Date for such interest period; provided, for the initial interest period for the Floating Rate Notes, the Interest Determination Date means
January&nbsp;11, 2019. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">10 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Interest Reset Date</B>&#148; means March&nbsp;29, June&nbsp;29, September&nbsp;29
and December&nbsp;29 in each year. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>LIBOR</B>&#148; shall mean the offered rate for deposits in U.S. dollars for the three-month
period which appears on Reuters Screen LIBOR01 Page at approximately 11:00 a.m., London time; provided, for the initial interest period for the Floating Rate Notes, LIBOR shall mean an interpolated rate between the offered rates for deposits in U.S.
dollars for the three-month period and the <FONT STYLE="white-space:nowrap">two-month</FONT> period, each of which appears on Reuters Screen LIBOR01 Page at approximately 11:00 a.m., London time. If this rate does not appear on the Reuters Screen
LIBOR01 Page, the Calculation Agent will determine the interest rate on the Floating Rate Notes for the applicable Interest Reset Date on the basis of the rates at which deposits in U.S. dollars are offered by four major banks in the London
interbank market selected by the Issuer at approximately 11:00 a.m., London time, two London Banking Days prior to such Interest Reset Date to prime banks in the London interbank market for a period of three months commencing on such Interest reset
Date and in principal amount equal to an amount not less than $1,000,000 that is representative for a single transaction in such market at such time. The Calculation Agent shall request the principal London office of each such major London bank to
provide a quotation of such rate. If at least two such quotations are provided, LIBOR for such Interest Reset Date will be the average of such quotations. If fewer than two quotations are provided, LIBOR for such Interest Reset Date shall be the
average of the rates quoted by three major banks in New York, New York selected by the Issuer at approximately 11:00 a.m., New York time, two London Banking Days prior to the such Interest Reset Date for loans in U.S. dollars to leading banks for a
period of three months commencing on such Interest Reset Date and in a principal amount equal to an amount not less than $1,000,000 that is representative for a single transaction in such market at such time. The Calculation Agent shall request the
principal New York office of each such major New York bank to provide a quotation of such rate. If fewer than three such quotations are provided, LIBOR for such Interest Reset Date shall be the same as the rate determined on the immediately
preceding Interest Reset Date. Notwithstanding the foregoing, if prior to any Interest Reset Date, the Issuer determines that LIBOR has been permanently discontinued, LIBOR has been discontinued, then the Calculation Agent will use, at the direction
of the Issuer, for each subsequent Interest Reset Date, the substitute or successor reference rate for LIBOR that has been selected by a central bank, reserve bank, monetary authority or any similar institution (including any committee or working
group thereof) and whose use is consistent with then-accepted market practice for debt obligations such as the Floating Rate Notes (the &#147;<B>Alternative Rate</B>&#148;) and may, after consultation with Issuer, determine what business day
convention to use, the definition of business day, the reference rate determination date to be used and any other relevant methodology for calculating such substitute or successor reference rate, including any adjustment factor needed to make such
Alternative Rate comparable to the LIBOR in a manner that is consistent with industry-accepted practices for the use of such </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">11 </P>

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Alternative Rate for debt obligations such as the Floating Rate Notes (collectively, &#147;<B>Adjustments</B>&#148;). However, if the Issuer determines that there is no clear market consensus as
to whether any rate has replaced LIBOR in customary market usage, the Issuer shall appoint in its sole discretion an independent financial advisor to determine an appropriate Alternative Rate and any Adjustments thereon, and the decision of the
independent financial advisor will be binding on the Issuer, the Calculation Agent and the holders of the Floating Rate Notes; provided, if the Issuer determines that LIBOR has been permanently discontinued and, for any reason, an Alternative Rate
has not been determined, LIBOR shall equal LIBOR for the interest period immediately preceding such Interest Reset Date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>London
Banking Day</B>&#148; means any day in which dealings in U.S. dollar deposits are transacted in the London interbank market. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer</B>&#148; means (i)&nbsp;Goldman Sachs&nbsp;&amp; Co. LLC and its successors, (ii)&nbsp;Citigroup Global
Markets Inc. and its successors, (iii)&nbsp;Deutsche Bank Securities Inc. and its successors and (iv)&nbsp;Merrill Lynch, Pierce, Fenner&nbsp;&amp; Smith Incorporated and its successors, who are primary U.S. Government securities dealers for the
City of New York (each a &#147;<B>Primary Treasury Dealer</B>&#148;), and any other Primary Treasury Dealer as the Issuer may specify from time to time; <I>provided</I>, <I>however</I>, that if any of them ceases to be a Primary Treasury Dealer, the
Issuer will substitute another Primary Treasury Dealer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer Quotations</B>&#148; means, with respect to
each Reference Treasury Dealer and any redemption date in respect of the Notes of a series, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed as a percentage of
its principal amount) quoted in writing to the Independent Investment Banker by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day preceding such redemption date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reuters Screen LIBOR01 Page</B>&#148; means the display page so designated currently so designated on the Reuters Monitor Money Rates
for the purpose of displaying London interbank offered rates of major banks (or any successor page). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Special Mandatory
Redemption Notice</B>&#148; means a notice to registered holders of the Special Mandatory Redemption Notes that such Notes shall be redeemed and specifying the Special Mandatory Redemption Date and such other information as required, to the extent
applicable, by the Base Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Treasury Rate</B>&#148; means, with respect to any redemption date in respect of the Notes of
a series, the rate per year equal to the semiannual equivalent yield to maturity or interpolated (on a day count basis) of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its
principal amount) equal to the Comparable Treasury Price for such redemption date. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">12 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Treasury Rate shall be calculated on the third Business Day preceding the redemption
date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">With respect to Section&nbsp;1.01(e)(ii)(A) above, the Trustee shall be entitled to conclusively rely upon the calculations of the
Independent Investment Banker. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f) The Notes shall be issuable in denominations equal to two thousand U.S. dollars ($2,000) or integral
multiples of $1,000 in excess thereof. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g) The Trustee shall also be the security registrar and paying agent for the Notes. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(h) Payments of the principal of and interest on the Notes shall be made in U.S. dollars, and the Notes shall be denominated in U.S. dollars.
</P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) The holders of the Notes shall have no special rights in addition to those provided in the Indenture upon the occurrence of any
particular events. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(j) The Notes shall not be subordinated to any other debt of the Issuer, and shall constitute senior unsecured
obligations of the Issuer. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(k) The Notes of each series shall be issued as a Global Security and The Depository Trust Company, New York,
New York shall be the initial Depositary. The Notes are not convertible into shares of common stock or other securities of the Issuer. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Section&nbsp;1.02<I>. Form of Note. </I>The form of the 2020 Notes is attached hereto as Exhibit A. The form of the 2024 Notes is attached
hereto as Exhibit B. The form of the 2029 Notes is attached hereto as Exhibit C. The form of the 2039 Notes is attached hereto as Exhibit D. The form of the 2049 Notes is attached hereto as Exhibit E. The form of the Floating Rate Notes is attached
hereto as Exhibit F. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Section&nbsp;1.03<I>. Additional Notes. </I>Subject to the terms and conditions contained herein, the Issuer may
issue additional notes of any series (such additional notes of the series of 2020 Notes, the &#147;<B>Additional 2020 Notes</B>&#148;, of the series of 2024 Notes, the &#147;<B>Additional 2024 Notes</B>&#148;, of the series of 2029 Notes, the
&#147;<B>Additional 2029 Notes</B>&#148;, of the series of 2039 Notes, the &#147;<B>Additional 2039 Notes</B>&#148;, of the series of 2049 Notes, the &#147;<B>Additional 2049 Notes</B>&#148; and of the series of Floating Rate Notes, the
&#147;<B>Additional Floating Rate Notes</B>&#148;, and collectively, the &#147;<B>Additional Notes</B>&#148;) having the same ranking and the same interest rate, maturity and other terms as the Original Notes of such series (except as otherwise
described in the form of the Notes of such series), without the consent of the holders of the Original Notes of such series then Outstanding. Any </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">13 </P>

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such Additional Notes of any series will be a part of the series having the same terms as the Original Notes of such series, <I>provided</I> that, if any additional notes subsequently issued are
not fungible for U.S. federal income tax purposes with any notes previously issued and such additional notes shall trade under a separate CUSIP. The aggregate principal amount of the Additional Notes of any series, if any, shall be unlimited. The
Original Notes and the Additional Notes, if any, of any series shall constitute one series for all purposes under this Eleventh Supplemental Indenture, including, without limitation, amendments, waivers and redemptions. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Section&nbsp;1.04 <I>Amendment of Section</I><I></I><I>&nbsp;6.01(a)(i) of the Base Indenture.</I> Solely for the purposes of each series the
Notes, respectively, Section&nbsp;6.01(a)(i) of the Base Indenture is hereby amended by replacing that section in its entirety with the following: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">&#147;the Company defaults in the payment of any installment of interest on the Notes (as defined in this Supplemental Indenture) of such
series, as and when the same shall become due and payable, and continuance of such default for a period of 30 days; <I>provided</I>, <I>however</I>, that a valid extension of an interest payment period by the Company in accordance with the terms of
any indenture supplemental hereto, shall not constitute a default in the payment of interest for this purpose.&#148; </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ARTICLE 2 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">M<SMALL>ISCELLANEOUS</SMALL> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Section&nbsp;2.01<I>. Definitions. </I>Capitalized terms used but not defined in this Eleventh Supplemental Indenture shall have the meanings
ascribed thereto in the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Section&nbsp;2.02<I>. Confirmation of Indenture. </I>The Indenture, as heretofore supplemented and
amended and as further supplemented and amended by this Eleventh Supplemental Indenture, is in all respects ratified and confirmed, and the Indenture, this Eleventh Supplemental Indenture and all indentures supplemental thereto shall be read, taken
and construed as one and the same instrument. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Section&nbsp;2.03<I>. Concerning the Trustee. </I>The Trustee assumes no duties,
responsibilities or liabilities by reason of this Eleventh Supplemental Indenture other than as set forth in the Indenture and, in carrying out its responsibilities hereunder, shall have all of the rights, protections and immunities which it
possesses under the Indenture. The Trustee makes no representations as to the validity or sufficiency of this Eleventh Supplemental Indenture. The recitals herein are deemed to be those of the Issuer and not of the Trustee. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">14 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Section&nbsp;2.04<I>. Governing Law. </I>This Eleventh Supplemental Indenture, the Indenture
and the Notes shall be governed by and construed in accordance with the law of the State of New&nbsp;York. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Section&nbsp;2.05<I>.
Separability. </I>In case any provision in this Eleventh Supplemental Indenture shall for any reason be held to be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be
affected or impaired thereby. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Section&nbsp;2.06<I>. Counterparts. </I>This Eleventh Supplemental Indenture may be executed in any number
of counterparts each of which shall be an original, but such counterparts shall together constitute but one and the same instrument. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">15 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, this Eleventh Supplemental Indenture has been duly executed by the
Issuer and the Trustee as of the day and year first written above. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD VALIGN="top" COLSPAN="5">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
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<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Mark C. McGivney</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Mark C. McGivney</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Chief Financial Officer</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" COLSPAN="5">Attest:</TD></TR>
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<TD HEIGHT="16" COLSPAN="4"></TD></TR>
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<TD VALIGN="top">&nbsp;&nbsp;&nbsp;&nbsp;By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Katherine J. Brennan</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Katherine J. Brennan</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Deputy General Counsel, Chief Compliance Officer &amp; Corporate Secretary</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>[Signature Page to the Eleventh Supplemental Indenture] </I></P>
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<TD VALIGN="top" COLSPAN="3">THE BANK OF NEW YORK MELLON, as Trustee</TD></TR>
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<TD HEIGHT="16" COLSPAN="2"></TD></TR>
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<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Francine Kincaid</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name: Francine Kincaid</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title: Vice President</TD></TR>
</TABLE></DIV> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>[Signature Page to the Eleventh Supplemental Indenture] </I></P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit A </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW&nbsp;YORK CORPORATION (&#147;<B>DTC</B>&#148;), TO
THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE&nbsp;&amp; CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE&nbsp;&amp; CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE&nbsp;&amp; CO., HAS AN INTEREST HEREIN. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE FORM IN ACCORDANCE WITH
THE PROVISIONS OF THE INDENTURE AND THE TERMS OF THE SECURITIES AND EXCEPT AS OTHERWISE PROVIDED IN SECTION 2.11 OF THE BASE INDENTURE, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR
ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-1 </P>

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<TD VALIGN="top">Certificate No. [1] / [2]</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="right">$[500,000,000] / [200,000,000]</TD></TR>
</TABLE> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CUSIP No.&nbsp;571748 BE1 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ISIN
No. US571748BE18 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>3.500% Senior Notes due 2020 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC., a Delaware corporation (the &#147;<B>Issuer</B>&#148;, which term includes any successor
corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede&nbsp;&amp; Co., or its registered assigns, the principal sum of [FIVE HUNDRED MILLION] / [TWO HUNDRED MILLION] DOLLARS ($[500,000,000] /
[200,000,000]) (which aggregate principal amount may from time to time be increased or decreased to such other aggregate principal amounts by adjustments made on the Schedule of Increases or Decreases in Global Security attached hereto) on
December&nbsp;29, 2020 and to pay interest on said principal sum from January&nbsp;15, 2019 or from the most recent interest payment date (each such date, an &#147;<B>Interest Payment Date</B>&#148;) to which interest has been paid or duly provided
for semiannually on June&nbsp;29 and December&nbsp;29 of each year commencing June&nbsp;29, 2019 at the rate of 3.500% per annum until the principal hereof shall have become due and payable, and on any overdue principal and premium, if any, and
(without duplication and to the extent that payment of such interest is enforceable under applicable law) on any overdue installment of interest at the same rate per annum. The amount of interest payable on any Interest Payment Date shall be
computed on the basis of a <FONT STYLE="white-space:nowrap">360-day</FONT> year of twelve <FONT STYLE="white-space:nowrap">30-day</FONT> months. In the event that any date on which interest is payable on this Note is not a Business Day, then payment
of interest payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay). The interest installment so payable, and punctually paid or duly provided for,
on any Interest Payment Date will, as provided in the Indenture (hereafter defined), be paid to the person in whose name this Note (or one or more Predecessor Securities, as defined in said Indenture) is registered at the close of business on the
regular record date for such interest installment which shall be the June&nbsp;14 or December&nbsp;14 preceding such Interest Payment Date. Any such interest installment not punctually paid or duly provided for (as defined in the Indenture, the
&#147;<B>Defaulted Interest</B>&#148;) shall forthwith cease to be payable to the registered holders on such regular record date, and may be paid to the person in whose name this Note (or one or more Predecessor Securities) is registered at the
close of business on a special record date to be fixed by the Trustee for the payment of such Defaulted Interest, which shall not be more than 15 nor less than 10 days prior to the date of the proposed payment, and not less than 10 days after the
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-2 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
receipt by the Trustee of the notice of the proposed payment or at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes may be
listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture. The principal of (and premium, if any) and the interest on this Note shall be payable at the office or agency of the Trustee maintained
for that purpose in any coin or currency of the United States of America which at the time of payment is legal tender for payment of public and private debts; <I>provided</I>, <I>however</I>, that payment of interest may be made at the option of the
Issuer by check mailed to the registered holder at such address as shall appear in the Security Register. Notwithstanding the foregoing, so long as the registered holder of this Note is Cede&nbsp;&amp; Co., the payment of the principal of (and
premium, if any) and interest on this Note will be made at such place and to such account as may be designated by DTC. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The indebtedness
evidenced by this Note is, to the extent provided in the Indenture, senior and unsecured and will rank in right of payment on parity with all other senior unsecured obligations of the Issuer. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note shall not be entitled to any benefit under the Indenture hereinafter referred to or be valid until the Certificate of Authentication
hereon shall have been signed manually by or on behalf of the Trustee. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The provisions of this Note are continued on the reverse side
hereof and such continued provisions shall for all purposes have the same effect as though fully set forth at this place. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-3 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the Issuer has caused this instrument to be executed. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated: January&nbsp;15, 2019 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TR>
<TD WIDTH="6%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="92%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="87%"></TD></TR>


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<TD VALIGN="top" COLSPAN="3">Attest:</TD></TR>
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<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">&nbsp;&nbsp;&nbsp;&nbsp;By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>[Signature Page to Global Note] </I></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-4 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">CERTIFICATE OF AUTHENTICATION </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This is one of the Notes of the series of Notes described in the <FONT STYLE="white-space:nowrap">within-mentioned</FONT> Indenture. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">THE BANK OF NEW YORK MELLON, as Trustee </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="93%"></TD></TR>


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<TD VALIGN="top">By</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Authorized Signatory</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated:__________________________ </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-5 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ASSIGNMENT FORM </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">FOR VALUE RECEIVED, the undersigned hereby </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">sells, assigns and transfers to </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Insert Social Security number or other
identifying number of assignee) </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Please print or typewrite name and address, including zip code of assignee) </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">the within Note of Marsh&nbsp;&amp; McLennan Companies, Inc. and hereby does irrevocably constitute and appoint </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Attorney to transfer said Note on the books of the <FONT STYLE="white-space:nowrap">within-named</FONT> Issuer with full power of substitution in the premises.
</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Dated:___________________</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership
in an approved signature guarantee medallion program pursuant to Securities and Exchange Commission <FONT STYLE="white-space:nowrap">Rule&nbsp;17Ad-15.</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">NOTICE: The signature to this assignment must correspond with the name as it appears on the first page of the within Note in every particular, without
alteration or enlargement or any change whatever. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-6 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3.500% Senior Notes due 2020 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The
initial aggregate principal amount of this Global Security is $[500,000,000] / [200,000,000]. The following increases or decreases in this Global Security have been made: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">No: _____ </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="24%"></TD>
<TD VALIGN="bottom"></TD>
<TD WIDTH="24%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="25%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="24%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; ">Date</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount of this</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Global Security</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Notation Explaining</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount Recorded</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Signature of authorized</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">officer of Trustee or</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Depositary</P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-7 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>3.500% Senior Notes due 2020 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note is one of a duly authorized series of Securities (referred to in the Base Indenture (hereafter defined)), of the Issuer (herein
sometimes referred to as the &#147;<B>Notes</B>&#148;), all such Securities issued or to be issued in one or more series under and pursuant to an indenture (the &#147;<B>Base Indenture</B>&#148;), dated as of July&nbsp;15, 2011 between the Issuer
and The Bank of New York Mellon, as Trustee (the &#147;<B>Trustee</B>&#148;), as supplemented in the case of the Notes by the Eleventh Supplemental Indenture, dated as of January&nbsp;15, 2019, between the Issuer and the Trustee (the Base Indenture,
as so supplemented, the &#147;<B>Indenture</B>&#148;), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights, limitations of rights, obligations, duties and immunities thereunder of the
Trustee, the Issuer and the holders of the Notes. This series of Notes is initially limited in aggregate principal amount as specified in said Eleventh Supplemental Indenture. This series of Notes and any Additional Notes of this series shall
constitute one series for all purposes under the Indenture, including without limitation, amendments, waivers and redemptions. The terms and conditions of this series of Notes and any Additional Notes of this series (other than the issue price, the
date of issuance, the payment of interest accruing prior to the issue date of the Additional Notes and the first payment of interest following such issue date) shall be the same and shall bear the same CUSIP number. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes may be redeemed in whole at any time or in part from time to time, at the option of the Issuer. The redemption price (the
&#147;<B>Redemption Price</B>&#148;) of the Notes to be redeemed shall be equal to the greater of (1) 100% of the principal amount of the Notes to be redeemed and (2)&nbsp;the sum, as determined by an Independent Investment Banker, of the present
values of the remaining scheduled payments of principal of and interest on the Notes to be redeemed that would be due, discounted to the date of redemption on a semi-annual basis (assuming a <FONT STYLE="white-space:nowrap">360-day</FONT> year
consisting of twelve <FONT STYLE="white-space:nowrap">30-day</FONT> months) at the then current Treasury Rate plus 15 basis points, plus, in each case, accrued and unpaid interest on the principal amount of the Notes being redeemed to but excluding
the redemption date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In case the Issuer shall desire to exercise such right to redeem all or, as the case may be, a portion of the Notes,
the Issuer shall, or shall cause the Trustee to, give notice of such redemption to holders of the Notes to be redeemed by transmitting a notice of such redemption not less than 30 days and not more than 60 days before the date fixed for redemption
to such holders. Any notice that is delivered in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the registered holder received the notice. In any case, failure duly to give such notice to the holder
of any Note designated for redemption in whole or in part, or any defect in the notice, shall not affect the validity of the proceedings for the redemption of any other Note. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-8 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Each such notice of redemption shall specify the amount of Notes to be redeemed, the date
fixed for redemption and the applicable Redemption Price at which the Notes are to be redeemed, and shall state that payment of the Redemption Price of such Notes to be redeemed will be made at the office or agency of the Issuer in the Borough of
Manhattan, the City and State of New York, upon presentation and surrender of such Notes, that interest accrued to the date fixed for redemption will be paid as specified in said notice and, that from and after said date interest will cease to
accrue; except that interest shall continue to accrue on any such Note or portion thereof with respect to which the Issuer defaults in the payment of such Redemption Price and accrued interest. If less than all the Notes are to be redeemed, the
notice to the holders of the Notes to be redeemed in whole or in part shall specify the particular Notes to be redeemed. In case any Note is to be redeemed in part only, the notice that relates to such Note shall state the portion of the principal
amount thereof to be redeemed, and shall state that on and after the redemption date, upon surrender of such security, a new Note in principal amount equal to the unredeemed portion thereof will be issued. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the Trustee is to provide notice to the holders of the Notes as described herein, for a partial or full redemption, the Issuer shall give
the Trustee at least 45 days&#146; notice in advance of the date fixed for redemption as to the aggregate principal amount of Notes to be redeemed, and thereupon, in the case of a partial redemption, the Notes to be redeemed will be selected in
accordance with the procedures of the Depositary in a manner that provides for the selection of a portion or portions (equal to two thousand U.S. dollars ($2,000) or integral multiples of $1,000 in excess thereof) of the principal amount of such
Notes of a denomination larger than $2,000. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer may, if and whenever it shall so elect, by delivery of instructions signed on its
behalf by its President or any Vice President, instruct the Trustee or any paying agent to call all or any part of the Notes for redemption and to give notice of redemption in the manner set forth in this Note, such notice to be in the name of the
Issuer or its own name as the Trustee or such paying agent may deem advisable. In any case in which notice of redemption is to be given by the Trustee or any such paying agent, the Issuer shall deliver or cause to be delivered to, or permit to
remain with, the Trustee or such paying agent, as the case may be, such Security Register, transfer books or other records, or suitable copies or extracts therefrom, sufficient to enable the Trustee or such paying agent to give any notice by mail
that may be required under the provisions stated herein. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-9 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Subject to Section&nbsp;2.11 of the Base Indenture, the Issuer shall not be required
(i)&nbsp;to issue, register the transfer of or exchange any Notes during a period beginning at the opening of business 15 days before the day of the delivery of a notice of redemption of the Notes selected for redemption and ending at the close of
business on the day of such delivery, or (ii)&nbsp;to register the transfer of or exchange any Notes so selected for redemption in whole or in part, except the unredeemed portion of any such Notes being redeemed in part. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the giving of notice of redemption shall have been completed as above provided, the Notes or portions of the Notes to be redeemed specified
in such notice shall become due and payable on the date and at the place stated in such notice at the applicable Redemption Price, and interest on such Notes shall cease to accrue on and after the date fixed for redemption, unless the Issuer shall
default in the payment of such Redemption Price and accrued interest. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Issue</B>&#148; means, with respect to
the Notes, the United States Treasury security selected by the Independent Investment Banker as having an actual or interpolated maturity comparable to the remaining term of the Notes to be redeemed that would be utilized, at the time of selection
and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Notes. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Price</B>&#148; means, with respect to any redemption date, (1)&nbsp;the average of the Reference Treasury Dealer
Quotations for such redemption date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2)&nbsp;if the Independent Investment Banker is provided with fewer than four such Reference Treasury Dealer Quotations, the
average of all such quotations. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Independent Investment Banker</B>&#148; means one of the Reference Treasury Dealers appointed by
the Issuer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer</B>&#148; means (i)&nbsp;Goldman Sachs&nbsp;&amp; Co. LLC and its successors,
(ii)&nbsp;Citigroup Global Markets Inc. and its successors, (iii)&nbsp;Deutsche Bank Securities Inc. and its successors and (iv)&nbsp;Merrill Lynch, Pierce, Fenner&nbsp;&amp; Smith Incorporated and its successors, who are primary U.S. Government
securities dealers for the City of New York (each a &#147;<B>Primary Treasury Dealer</B>&#148;), and any other Primary Treasury Dealer as the Issuer may specify from time to time; <I>provided</I>, <I>however</I>, that if any of them ceases to be a
Primary Treasury Dealer, the Issuer will substitute another Primary Treasury Dealer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer
Quotations</B>&#148; means, with respect to each Reference Treasury Dealer and any redemption date in respect of the Notes, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury
Issue (expressed as a percentage of its principal amount) quoted in writing to the Independent Investment Banker by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day preceding such redemption date. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-10 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Treasury Rate</B>&#148; means, with respect to any redemption date in respect of
the Notes, the rate per year equal to the semiannual equivalent yield to maturity or interpolated (on a day count basis) of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its
principal amount) equal to the Comparable Treasury Price for such redemption date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If, (A)&nbsp;the Issuer&#146;s pending acquisition of
Jardine Lloyd Thomson Group plc (the &#147;<B>Acquisition</B>&#148;) is not completed by the parties to that certain Cooperation Agreement, dated as of September&nbsp;18, 2018, by and among the Issuer, MMC Treasury Holdings (UK) Limited, a
wholly-owned subsidiary of the Issuer, and Jardine Lloyd Thomson Group plc (the &#147;<B>Cooperation Agreement</B>&#148;), on or prior to December&nbsp;31, 2019, (B) the Cooperation Agreement is terminated or (C)&nbsp;the Issuer notifies the Trustee
that it will not pursue the consummation of the Acquisition (each, a &#147;<B>Special Mandatory Redemption Event</B>&#148;), then the Issuer shall redeem all of the Notes on the Special Mandatory Redemption Date at a special mandatory redemption
price equal to 101% of the aggregate principal amount of the Special Mandatory Redemption Notes to be redeemed, plus accrued and unpaid interest from and including the date of initial issuance, or the most recent date to which interest has been
paid, whichever is later, to but not including the Special Mandatory Redemption Date (the &#147;<B>Special Mandatory Redemption Price</B>&#148;). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Upon the occurrence of a Special Mandatory Redemption Event, promptly, but in no event more than five (5)&nbsp;Business Days, following such
Special Mandatory Redemption Event, the Issuer shall deliver notice to the Trustee of such special mandatory redemption and the date upon which such Special Mandatory Redemption Notes will be redeemed, which shall be no later than the third (3<SUP
STYLE="font-size:85%; vertical-align:top">rd</SUP>) Business Day following the date of such notice (the &#147;<B>Special Mandatory Redemption Date</B>&#148;), and a notice to registered holders of the Notes that such Notes shall be redeemed and
specifying the Special Mandatory Redemption Date and such other information as required, to the extent applicable, by the Base Indenture (the &#147;<B>Special Mandatory Redemption Notice</B>&#148;), which shall be delivered in the name and at the
expense of the Issuer. The Trustee shall promptly mail or electronically deliver the Special Mandatory Redemption Notice, according to the procedures of The Depository Trust Company, to each registered holder of Notes to be redeemed at such
holder&#146;s registered address. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-11 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If funds sufficient to pay the Special Mandatory Redemption Price of all of the Notes to be
redeemed on the Special Mandatory Redemption Date are deposited with a Paying Agent or the Trustee on or before such Special Mandatory Redemption Date, then on and after such Special Mandatory Redemption Date, the Notes shall cease to bear interest
and, other than the right to receive the Special Mandatory Redemption Price, all rights under the Notes shall terminate. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Indenture
contains provisions permitting the Issuer and the Trustee, with the consent of the holders of not less than a majority in aggregate principal amount of the Securities of all of the series at the time Outstanding affected thereby (all such series
voting together as a single class), as defined in the Indenture, to execute supplemental indentures for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of the Base Indenture or of any
supplemental indenture or of modifying in any manner the rights of the holders of the Notes; <I>provided, however,</I> that no such supplemental indenture shall, without the consent of the holders of each Security then Outstanding and affected
thereby (i)&nbsp;extend the fixed maturity of any Securities, including the Notes, or reduce the principal amount thereof, or reduce the rate or extend the time of payment of interest thereon, or reduce any premium payable upon the redemption
thereof, or (ii)&nbsp;reduce the aforesaid percentage of Securities, the holders of which are required to consent to any such supplemental indenture. The Indenture also contains provisions permitting the holders of a majority in aggregate principal
amount of the Securities of all series at the time Outstanding affected thereby (all such series voting together as a single class), to waive any past default in the performance of any of the covenants contained in the Base Indenture, or established
pursuant to the Base Indenture with respect to such series, and its consequences, except a default in the payment of the principal of or premium, if any, or interest on any Securities, including the Notes, in which case, each such affected series
voting as a separate class. Any such consent or waiver by the registered holder of this Note (unless revoked as provided in the Base Indenture) shall be conclusive and binding upon such holder and upon all future holders and owners of this Note and
of any Note issued in exchange herefor or in place hereof (whether by registration of transfer or otherwise), irrespective of whether or not any notation of such consent or waiver is made upon this Note. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Issuer,
which is absolute and unconditional, to pay the principal of and premium, if any, and interest on this Note at the time and place and at the rate and in the money herein prescribed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer is subject to certain covenants contained in the Indenture with respect to, and for the benefit of the holders of, the Notes. The
Trustee shall not be obligated to monitor or confirm, on a continuing basis or otherwise, the Issuer&#146;s compliance with the covenants contained in the Indenture or with respect to reports or other certificates filed under the Indenture;<I>
provided</I>, <I>however</I>, that </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
nothing herein shall relieve the Trustee of any obligations to monitor the Issuer&#146;s timely delivery of all reports and certificates required under Section&nbsp;5.03 of the Base Indenture and
to fulfill its obligations under Article&nbsp;VII of the Indenture. If an Event of Default as defined in the Indenture with respect to the Notes shall occur and be continuing, the principal of the Notes may be declared due and payable in the manner
and with the effect provided in the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in and subject to the provisions of the Indenture, the holder of this Note
shall not have the right to institute any proceeding with respect to the Indenture or for the appointment of a receiver or Trustee or for any other remedy thereunder, unless such holder shall have previously given the Trustee written notice of a
continuing Event of Default with respect to the Notes, the holders of not less than 25% in principal amount of the Outstanding Notes (in the case of an Event of Default described in clauses (a)(i) or (a)(ii) of Section&nbsp;6.01 of the Base
Indenture, each such series voting as a separate class, and in the case of an Event of Default described in clauses (a)(iii), (a)(iv), (a)(v) or (a)(vi) of Section&nbsp;6.01 of the Base Indenture, all affected series voting together as a single
class) shall have made written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee reasonable indemnity and the Trustee shall have failed to institute any such proceeding for
60&nbsp;days after receipt of such notice, request and offer of indemnity and the Trustee shall not have received from the holders of a majority in principal amount of the Notes at the time Outstanding (voting as provided in Section&nbsp;6.04(b) of
the Base Indenture) a direction inconsistent with such request. The foregoing shall not apply to any suit instituted by the holder of this Note for the enforcement of any payment of principal hereof or any interest on or after the respective due
dates expressed herein. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in the Indenture and subject to certain limitations therein set forth, this Note is transferable by
the registered holder hereof on the Security Register of the Issuer, upon surrender of this Note for registration of transfer at the office or agency of the Issuer in the Borough of Manhattan, the City and State of New&nbsp;York accompanied by a
written instrument or instruments of transfer in form satisfactory to the Issuer or the Trustee duly executed by the registered holder hereof or his attorney duly authorized in writing, and thereupon one or more new Notes of authorized denominations
and for the same aggregate principal amount and series will be issued to the designated transferee or transferees. No service charge will be made for any such transfer, but the Issuer may require payment of a sum sufficient to cover any tax or other
governmental charge payable in relation thereto. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-13 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Prior to due presentment for registration of transfer of this Note, the Issuer, the Trustee,
any paying agent and any Security Registrar may deem and treat the registered holder hereof as the absolute owner hereof (whether or not this Note shall be overdue and notwithstanding any notice of ownership or writing hereon made by anyone other
than the Security Registrar) for the purpose of receiving payment of or on account of the principal hereof and premium, if any, and interest due hereon and for all other purposes, and neither the Issuer nor the Trustee nor any paying agent nor any
Note Registrar shall be affected by any notice to the contrary. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No recourse shall be had for the payment of the principal of or the
interest on this Note, or for any claim based hereon, or otherwise in respect hereof, or based on or in respect of the Indenture, against any incorporator, stockholder, officer or director, past, present or future, as such, of the Issuer or of any
predecessor or successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise, all such liability being, by the acceptance hereof and as part of the consideration
for the issuance hereof, expressly waived and released. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes are issuable only in registered form without coupons in authorized
denominations. As provided in the Indenture and subject to certain limitations herein and therein set forth, Notes so issued are exchangeable for a like aggregate principal amount of Notes of a different authorized denomination, as requested by the
holder surrendering the same. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">All terms used in this Note which are defined in the Indenture shall have the meanings assigned to them in
the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">THE INDENTURE AND THE NOTES INCLUDING THIS NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE
OF NEW&nbsp;YORK. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Issuer has
caused &#147;CUSIP&#148; numbers to be printed on the Notes as a convenience to the holders of the Notes. No representation is made as to the correctness or accuracy of such CUSIP numbers as printed on the Notes, and reliance may be placed only on
the other identification numbers printed hereon. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Unless the certificate of authentication hereon has been executed by or on behalf of the
Trustee by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purposes. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-14 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit B </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW&nbsp;YORK CORPORATION (&#147;<B>DTC</B>&#148;), TO
THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE&nbsp;&amp; CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE&nbsp;&amp; CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE&nbsp;&amp; CO., HAS AN INTEREST HEREIN. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE FORM IN ACCORDANCE WITH
THE PROVISIONS OF THE INDENTURE AND THE TERMS OF THE SECURITIES AND EXCEPT AS OTHERWISE PROVIDED IN SECTION 2.11 OF THE BASE INDENTURE, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR
ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-1 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Certificate No. [1] / [2]
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$500,000,000 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CUSIP No.&nbsp;571748 BF8 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ISIN No. US571748BF82 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>3.875% Senior Notes due 2024 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC., a Delaware corporation (the &#147;<B>Issuer</B>&#148;, which term includes any successor
corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede&nbsp;&amp; Co., or its registered assigns, the principal sum of FIVE HUNDRED MILLION DOLLARS ($500,000,000) (which aggregate principal
amount may from time to time be increased or decreased to such other aggregate principal amounts by adjustments made on the Schedule of Increases or Decreases in Global Security attached hereto) on March&nbsp;15, 2024 and to pay interest on said
principal sum from January&nbsp;15, 2019 or from the most recent interest payment date (each such date, an &#147;<B>Interest Payment Date</B>&#148;) to which interest has been paid or duly provided for semiannually on March&nbsp;15 and
September&nbsp;15 of each year commencing September&nbsp;15, 2019 at the rate of 3.875% per annum until the principal hereof shall have become due and payable, and on any overdue principal and premium, if any, and (without duplication and to the
extent that payment of such interest is enforceable under applicable law) on any overdue installment of interest at the same rate per annum. The amount of interest payable on any Interest Payment Date shall be computed on the basis of a <FONT
STYLE="white-space:nowrap">360-day</FONT> year of twelve <FONT STYLE="white-space:nowrap">30-day</FONT> months. In the event that any date on which interest is payable on this Note is not a Business Day, then payment of interest payable on such date
will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay). The interest installment so payable, and punctually paid or duly provided for, on any Interest Payment Date
will, as provided in the Indenture (hereafter defined), be paid to the person in whose name this Note (or one or more Predecessor Securities, as defined in said Indenture) is registered at the close of business on the regular record date for such
interest installment which shall be the February&nbsp;28 or August&nbsp;31 preceding such Interest Payment Date. Any such interest installment not punctually paid or duly provided for (as defined in the Indenture, the &#147;<B>Defaulted
Interest</B>&#148;) shall forthwith cease to be payable to the registered holders on such regular record date, and may be paid to the person in whose name this Note (or one or more Predecessor Securities) is registered at the close of business on a
special record date to be fixed by the Trustee for the payment of such Defaulted Interest, which shall not be more than 15 nor less than 10 days prior to the date of the proposed payment, and not less than 10 days after the receipt by the Trustee of
the notice of the proposed payment </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-2 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
or at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes may be listed, and upon such notice as may be required by such
exchange, all as more fully provided in the Indenture. The principal of (and premium, if any) and the interest on this Note shall be payable at the office or agency of the Trustee maintained for that purpose in any coin or currency of the United
States of America which at the time of payment is legal tender for payment of public and private debts; <I>provided</I>, <I>however</I>, that payment of interest may be made at the option of the Issuer by check mailed to the registered holder at
such address as shall appear in the Security Register. Notwithstanding the foregoing, so long as the registered holder of this Note is Cede&nbsp;&amp; Co., the payment of the principal of (and premium, if any) and interest on this Note will be made
at such place and to such account as may be designated by DTC. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The indebtedness evidenced by this Note is, to the extent provided in the
Indenture, senior and unsecured and will rank in right of payment on parity with all other senior unsecured obligations of the Issuer. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note shall not be entitled to any benefit under the Indenture hereinafter referred to or be valid until the Certificate of Authentication
hereon shall have been signed manually by or on behalf of the Trustee. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The provisions of this Note are continued on the reverse side
hereof and such continued provisions shall for all purposes have the same effect as though fully set forth at this place. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-3 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the Issuer has caused this instrument to be executed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated: January&nbsp;15, 2019 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD WIDTH="92%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="11%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="87%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">Attest:</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">&nbsp;&nbsp;&nbsp;&nbsp;By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>[Signature Page to Global Note] </I></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-4 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">CERTIFICATE OF AUTHENTICATION </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This is one of the Notes of the series of Notes described in the <FONT STYLE="white-space:nowrap">within-mentioned</FONT> Indenture. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">THE BANK OF NEW YORK MELLON, as Trustee </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="5%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="93%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Authorized Signatory</TD></TR>
</TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated:&nbsp;<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-5 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ASSIGNMENT FORM </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">FOR VALUE RECEIVED, the undersigned hereby </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">sells, assigns and transfers to </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Insert Social Security number or other
identifying number of assignee) </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Please print or typewrite name and address, including zip code of assignee) </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">the within Note of Marsh&nbsp;&amp; McLennan Companies, Inc. and hereby does irrevocably constitute and appoint </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Attorney to transfer said Note on the books of the <FONT STYLE="white-space:nowrap">within-named</FONT> Issuer with full power of substitution in the premises.
</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR>
<TD WIDTH="31%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="33%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="33%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Dated:___________________</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership
in an approved signature guarantee medallion program pursuant to Securities and Exchange Commission <FONT STYLE="white-space:nowrap">Rule&nbsp;17Ad-15.</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">NOTICE: The signature to this assignment must correspond with the name as it appears on the first page of the within Note in every particular, without
alteration or enlargement or any change whatever. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-6 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3.875% Senior Notes due 2024 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The
initial aggregate principal amount of this Global Security is $500,000,000. The following increases or decreases in this Global Security have been made: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">No: _____ </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:8pt" ALIGN="center">


<TR>
<TD WIDTH="24%"></TD>
<TD VALIGN="bottom"></TD>
<TD WIDTH="24%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="25%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="24%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; ">Date</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount of this</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Global Security</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Notation Explaining</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount Recorded</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Signature of authorized</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">officer of Trustee or</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Depositary</P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-7 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>3.875% Senior Notes due 2024 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note is one of a duly authorized series of Securities (referred to in the Base Indenture (hereafter defined)), of the Issuer (herein
sometimes referred to as the &#147;<B>Notes</B>&#148;), all such Securities issued or to be issued in one or more series under and pursuant to an indenture (the &#147;<B>Base Indenture</B>&#148;), dated as of July&nbsp;15, 2011 between the Issuer
and The Bank of New York Mellon, as Trustee (the &#147;<B>Trustee</B>&#148;), as supplemented in the case of the Notes by the Eleventh Supplemental Indenture, dated as of January&nbsp;15, 2019, between the Issuer and the Trustee (the Base Indenture,
as so supplemented, the &#147;<B>Indenture</B>&#148;), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights, limitations of rights, obligations, duties and immunities thereunder of the
Trustee, the Issuer and the holders of the Notes. This series of Notes is initially limited in aggregate principal amount as specified in said Eleventh Supplemental Indenture. This series of Notes and any Additional Notes of this series shall
constitute one series for all purposes under the Indenture, including without limitation, amendments, waivers and redemptions. The terms and conditions of this series of Notes and any Additional Notes of this series (other than the issue price, the
date of issuance, the payment of interest accruing prior to the issue date of the Additional Notes and the first payment of interest following such issue date) shall be the same and shall bear the same CUSIP number. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes may be redeemed in whole at any time or in part from time to time, at the option of the Issuer. The redemption price (the
&#147;<B>Redemption Price</B>&#148;) of the Notes to be redeemed shall be calculated as follows, plus, in each case, accrued and unpaid interest on the principal amount of the Notes being redeemed to but excluding the redemption date: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(A) If the redemption date is prior to February&nbsp;15, 2024, the Notes to be redeemed may be redeemed by the Issuer at a Redemption Price
equal to the greater of (1) 100% of the principal amount of the Notes to be redeemed and (2)&nbsp;the sum of the present values of the remaining scheduled payments of principal of and interest on the Notes to be redeemed that would be due if the
Notes matured on February&nbsp;15, 2024 (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve <FONT
STYLE="white-space:nowrap">30-day</FONT> months) at the then current Treasury Rate plus 20 basis points. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(B) If the redemption date is on
or after February&nbsp;15, 2024, the Notes to be redeemed may be redeemed by the Issuer at a Redemption Price equal to 100% of the principal amount of the Notes to be redeemed. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-8 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In case the Issuer shall desire to exercise such right to redeem all or, as the case may be,
a portion of the Notes, the Issuer shall, or shall cause the Trustee to, give notice of such redemption to holders of the Notes to be redeemed by transmitting a notice of such redemption not less than 30 days and not more than 60 days before the
date fixed for redemption to such holders. Any notice that is delivered in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the registered holder received the notice. In any case, failure duly to give
such notice to the holder of any Note designated for redemption in whole or in part, or any defect in the notice, shall not affect the validity of the proceedings for the redemption of any other Note. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Each such notice of redemption shall specify the amount of Notes to be redeemed, the date fixed for redemption and the applicable Redemption
Price at which the Notes are to be redeemed, and shall state that payment of the Redemption Price of such Notes to be redeemed will be made at the office or agency of the Issuer in the Borough of Manhattan, the City and State of New York, upon
presentation and surrender of such Notes, that interest accrued to the date fixed for redemption will be paid as specified in said notice and, that from and after said date interest will cease to accrue; except that interest shall continue to accrue
on any such Note or portion thereof with respect to which the Issuer defaults in the payment of such Redemption Price and accrued interest. If less than all the Notes are to be redeemed, the notice to the holders of the Notes to be redeemed in whole
or in part shall specify the particular Notes to be redeemed. In case any Note is to be redeemed in part only, the notice that relates to such Note shall state the portion of the principal amount thereof to be redeemed, and shall state that on and
after the redemption date, upon surrender of such security, a new Note in principal amount equal to the unredeemed portion thereof will be issued. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the Trustee is to provide notice to the holders of the Notes as described herein, for a partial or full redemption, the Issuer shall give
the Trustee at least 45 days&#146; notice in advance of the date fixed for redemption as to the aggregate principal amount of Notes to be redeemed, and thereupon, in the case of a partial redemption, the Notes to be redeemed will be selected in
accordance with the procedures of the Depositary in a manner that provides for the selection of a portion or portions (equal to two thousand U.S. dollars ($2,000) or integral multiples of $1,000 in excess thereof) of the principal amount of such
Notes of a denomination larger than $2,000. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer may, if and whenever it shall so elect, by delivery of instructions signed on its
behalf by its President or any Vice President, instruct the Trustee or any paying agent to call all or any part of the Notes for redemption and to give notice of redemption in the manner set forth in this Note, such notice to be in the name of the
Issuer or its own name as the Trustee or such paying agent may deem advisable. In any case in which notice of redemption is to be given by the </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-9 </P>

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Trustee or any such paying agent, the Issuer shall deliver or cause to be delivered to, or permit to remain with, the Trustee or such paying agent, as the case may be, such Security Register,
transfer books or other records, or suitable copies or extracts therefrom, sufficient to enable the Trustee or such paying agent to give any notice by mail that may be required under the provisions stated herein. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Subject to Section&nbsp;2.11 of the Base Indenture, the Issuer shall not be required (i)&nbsp;to issue, register the transfer of or exchange
any Notes during a period beginning at the opening of business 15 days before the day of the delivery of a notice of redemption of the Notes selected for redemption and ending at the close of business on the day of such delivery, or (ii)&nbsp;to
register the transfer of or exchange any Notes so selected for redemption in whole or in part, except the unredeemed portion of any such Notes being redeemed in part. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the giving of notice of redemption shall have been completed as above provided, the Notes or portions of the Notes to be redeemed specified
in such notice shall become due and payable on the date and at the place stated in such notice at the applicable Redemption Price, and interest on such Notes shall cease to accrue on and after the date fixed for redemption, unless the Issuer shall
default in the payment of such Redemption Price and accrued interest. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Issue</B>&#148; means, with respect to
the Notes, the United States Treasury security selected by the Independent Investment Banker as having an actual or interpolated maturity comparable to the remaining term of the Notes to be redeemed (assuming for this purpose, that the Notes matured
on February&nbsp;15, 2024) that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Notes. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Price</B>&#148; means, with respect to any redemption date, (1)&nbsp;the average of the Reference Treasury Dealer
Quotations for such redemption date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2)&nbsp;if the Independent Investment Banker is provided with fewer than four such Reference Treasury Dealer Quotations, the
average of all such quotations. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Independent Investment Banker</B>&#148; means one of the Reference Treasury Dealers appointed by
the Issuer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer</B>&#148; means (i)&nbsp;Goldman Sachs&nbsp;&amp; Co. LLC and its successors,
(ii)&nbsp;Citigroup Global Markets Inc. and its successors, (iii)&nbsp;Deutsche Bank Securities Inc. and its successors and (iv)&nbsp;Merrill Lynch, Pierce, Fenner&nbsp;&amp; Smith Incorporated and its successors, who are primary U.S. Government
securities dealers for the City of New York (each a &#147;<B>Primary Treasury Dealer</B>&#148;), and any other Primary Treasury Dealer as the Issuer may specify from time to time; <I>provided</I>, <I>however</I>, that if any of them ceases to be a
Primary Treasury Dealer, the Issuer will substitute another Primary Treasury Dealer. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-10 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer Quotations</B>&#148; means, with respect to each
Reference Treasury Dealer and any redemption date in respect of the Notes, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed as a percentage of its principal
amount) quoted in writing to the Independent Investment Banker by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day preceding such redemption date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Treasury Rate</B>&#148; means, with respect to any redemption date in respect of the Notes, the rate per year equal to the semiannual
equivalent yield to maturity or interpolated (on a day count basis) of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury
Price for such redemption date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If, (A)&nbsp;the Issuer&#146;s pending acquisition of Jardine Lloyd Thomson Group plc (the
&#147;<B>Acquisition</B>&#148;) is not completed by the parties to that certain Cooperation Agreement, dated as of September&nbsp;18, 2018, by and among the Issuer, MMC Treasury Holdings (UK) Limited, a wholly-owned subsidiary of the Issuer, and
Jardine Lloyd Thomson Group plc (the &#147;<B>Cooperation Agreement</B>&#148;), on or prior to December&nbsp;31, 2019, (B) the Cooperation Agreement is terminated or (C)&nbsp;the Issuer notifies the Trustee that it will not pursue the consummation
of the Acquisition (each, a &#147;<B>Special Mandatory Redemption Event</B>&#148;), then the Issuer shall redeem all of the Notes on the Special Mandatory Redemption Date at a special mandatory redemption price equal to 101% of the aggregate
principal amount of the Special Mandatory Redemption Notes to be redeemed, plus accrued and unpaid interest from and including the date of initial issuance, or the most recent date to which interest has been paid, whichever is later, to but not
including the Special Mandatory Redemption Date (the &#147;<B>Special Mandatory Redemption Price</B>&#148;). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Upon the occurrence of a
Special Mandatory Redemption Event, promptly, but in no event more than five (5)&nbsp;Business Days, following such Special Mandatory Redemption Event, the Issuer shall deliver notice to the Trustee of such special mandatory redemption and the date
upon which such Special Mandatory Redemption Notes will be redeemed, which shall be no later than the third (3<SUP STYLE="font-size:85%; vertical-align:top">rd</SUP>) Business Day following the date of such notice (the &#147;<B>Special Mandatory
Redemption Date</B>&#148;), and a notice to registered holders of the Notes that such Notes shall be redeemed and specifying the Special Mandatory Redemption Date and such other information as required, to the extent applicable, by the Base
Indenture (the &#147;<B>Special Mandatory Redemption Notice</B>&#148;), which </P>
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shall be delivered in the name and at the expense of the Issuer. The Trustee shall promptly mail or electronically deliver the Special Mandatory Redemption Notice, according to the procedures of
The Depository Trust Company, to each registered holder of Notes to be redeemed at such holder&#146;s registered address. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If funds
sufficient to pay the Special Mandatory Redemption Price of all of the Notes to be redeemed on the Special Mandatory Redemption Date are deposited with a Paying Agent or the Trustee on or before such Special Mandatory Redemption Date, then on and
after such Special Mandatory Redemption Date, the Notes shall cease to bear interest and, other than the right to receive the Special Mandatory Redemption Price, all rights under the Notes shall terminate. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Indenture contains provisions permitting the Issuer and the Trustee, with the consent of the holders of not less than a majority in
aggregate principal amount of the Securities of all of the series at the time Outstanding affected thereby (all such series voting together as a single class), as defined in the Indenture, to execute supplemental indentures for the purpose of adding
any provisions to or changing in any manner or eliminating any of the provisions of the Base Indenture or of any supplemental indenture or of modifying in any manner the rights of the holders of the Notes; <I>provided, however,</I> that no such
supplemental indenture shall, without the consent of the holders of each Security then Outstanding and affected thereby (i)&nbsp;extend the fixed maturity of any Securities, including the Notes, or reduce the principal amount thereof, or reduce the
rate or extend the time of payment of interest thereon, or reduce any premium payable upon the redemption thereof, or (ii)&nbsp;reduce the aforesaid percentage of Securities, the holders of which are required to consent to any such supplemental
indenture. The Indenture also contains provisions permitting the holders of a majority in aggregate principal amount of the Securities of all series at the time Outstanding affected thereby (all such series voting together as a single class), to
waive any past default in the performance of any of the covenants contained in the Base Indenture, or established pursuant to the Base Indenture with respect to such series, and its consequences, except a default in the payment of the principal of
or premium, if any, or interest on any Securities, including the Notes, in which case, each such affected series voting as a separate class. Any such consent or waiver by the registered holder of this Note (unless revoked as provided in the Base
Indenture) shall be conclusive and binding upon such holder and upon all future holders and owners of this Note and of any Note issued in exchange herefor or in place hereof (whether by registration of transfer or otherwise), irrespective of whether
or not any notation of such consent or waiver is made upon this Note. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-12 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No reference herein to the Indenture and no provision of this Note or of the Indenture shall
alter or impair the obligation of the Issuer, which is absolute and unconditional, to pay the principal of and premium, if any, and interest on this Note at the time and place and at the rate and in the money herein prescribed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer is subject to certain covenants contained in the Indenture with respect to, and for the benefit of the holders of, the Notes. The
Trustee shall not be obligated to monitor or confirm, on a continuing basis or otherwise, the Issuer&#146;s compliance with the covenants contained in the Indenture or with respect to reports or other certificates filed under the Indenture;<I>
provided</I>, <I>however</I>, that nothing herein shall relieve the Trustee of any obligations to monitor the Issuer&#146;s timely delivery of all reports and certificates required under Section&nbsp;5.03 of the Base Indenture and to fulfill its
obligations under Article&nbsp;VII of the Indenture. If an Event of Default as defined in the Indenture with respect to the Notes shall occur and be continuing, the principal of the Notes may be declared due and payable in the manner and with the
effect provided in the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in and subject to the provisions of the Indenture, the holder of this Note shall not have
the right to institute any proceeding with respect to the Indenture or for the appointment of a receiver or Trustee or for any other remedy thereunder, unless such holder shall have previously given the Trustee written notice of a continuing Event
of Default with respect to the Notes, the holders of not less than 25% in principal amount of the Outstanding Notes (in the case of an Event of Default described in clauses (a)(i) or (a)(ii) of Section&nbsp;6.01 of the Base Indenture, each such
series voting as a separate class, and in the case of an Event of Default described in clauses (a)(iii), (a)(iv), (a)(v) or (a)(vi) of Section&nbsp;6.01 of the Base Indenture, all affected series voting together as a single class) shall have made
written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee reasonable indemnity and the Trustee shall have failed to institute any such proceeding for 60&nbsp;days after receipt of
such notice, request and offer of indemnity and the Trustee shall not have received from the holders of a majority in principal amount of the Notes at the time Outstanding (voting as provided in Section&nbsp;6.04(b) of the Base Indenture) a
direction inconsistent with such request. The foregoing shall not apply to any suit instituted by the holder of this Note for the enforcement of any payment of principal hereof or any interest on or after the respective due dates expressed herein.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in the Indenture and subject to certain limitations therein set forth, this Note is transferable by the registered holder
hereof on the Security Register of the Issuer, upon surrender of this Note for registration of transfer at the office or agency of the Issuer in the Borough of Manhattan, the City and State of New&nbsp;York accompanied by a written instrument or
instruments of transfer in form satisfactory to the Issuer or the Trustee duly executed by the registered holder hereof or his attorney duly authorized in writing, and thereupon one or more new Notes of authorized denominations and for the same
aggregate principal amount and series will be issued to the designated transferee or transferees. No service charge will be made for any such transfer, but the Issuer may require payment of a sum sufficient to cover any tax or other governmental
charge payable in relation thereto. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-13 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Prior to due presentment for registration of transfer of this Note, the Issuer, the Trustee,
any paying agent and any Security Registrar may deem and treat the registered holder hereof as the absolute owner hereof (whether or not this Note shall be overdue and notwithstanding any notice of ownership or writing hereon made by anyone other
than the Security Registrar) for the purpose of receiving payment of or on account of the principal hereof and premium, if any, and interest due hereon and for all other purposes, and neither the Issuer nor the Trustee nor any paying agent nor any
Note Registrar shall be affected by any notice to the contrary. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No recourse shall be had for the payment of the principal of or the
interest on this Note, or for any claim based hereon, or otherwise in respect hereof, or based on or in respect of the Indenture, against any incorporator, stockholder, officer or director, past, present or future, as such, of the Issuer or of any
predecessor or successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise, all such liability being, by the acceptance hereof and as part of the consideration
for the issuance hereof, expressly waived and released. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes are issuable only in registered form without coupons in authorized
denominations. As provided in the Indenture and subject to certain limitations herein and therein set forth, Notes so issued are exchangeable for a like aggregate principal amount of Notes of a different authorized denomination, as requested by the
holder surrendering the same. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">All terms used in this Note which are defined in the Indenture shall have the meanings assigned to them in
the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">THE INDENTURE AND THE NOTES INCLUDING THIS NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE
OF NEW&nbsp;YORK. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Issuer has
caused &#147;CUSIP&#148; numbers to be printed on the Notes as a convenience to the holders of the Notes. No representation is made as to the correctness or accuracy of such CUSIP numbers as printed on the Notes, and reliance may be placed only on
the other identification numbers printed hereon. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-14 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Unless the certificate of authentication hereon has been executed by or on behalf of the
Trustee by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purposes. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-15 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit C </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW&nbsp;YORK CORPORATION (&#147;<B>DTC</B>&#148;), TO
THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE&nbsp;&amp; CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE&nbsp;&amp; CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE&nbsp;&amp; CO., HAS AN INTEREST HEREIN. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE FORM IN ACCORDANCE WITH
THE PROVISIONS OF THE INDENTURE AND THE TERMS OF THE SECURITIES AND EXCEPT AS OTHERWISE PROVIDED IN SECTION 2.11 OF THE BASE INDENTURE, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR
ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Certificate No. [1] / [2] /
[3]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;$[500,000,000] / [500,000,000] / [250,000,000] </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CUSIP No.&nbsp;571748 BG6 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ISIN No. US571748BG65 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN
COMPANIES, INC. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>4.375% Senior Notes due 2029 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC., a Delaware corporation (the &#147;<B>Issuer</B>&#148;, which term includes any successor
corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede&nbsp;&amp; Co., or its registered assigns, the principal sum of [FIVE HUNDRED] / [FIVE HUNDRED] / [TWO HUNDRED AND FIFTY] MILLION DOLLARS
($[500,000,000] / [500,000,000] / [250,000,000]) (which aggregate principal amount may from time to time be increased or decreased to such other aggregate principal amounts by adjustments made on the Schedule of Increases or Decreases in Global
Security attached hereto) on March&nbsp;15, 2029 and to pay interest on said principal sum from January&nbsp;15, 2019 or from the most recent interest payment date (each such date, an &#147;<B>Interest Payment Date</B>&#148;) to which interest has
been paid or duly provided for semiannually on March&nbsp;15 and September&nbsp;15 of each year commencing September&nbsp;15, 2019 at the rate of 4.375% per annum until the principal hereof shall have become due and payable, and on any overdue
principal and premium, if any, and (without duplication and to the extent that payment of such interest is enforceable under applicable law) on any overdue installment of interest at the same rate per annum. The amount of interest payable on any
Interest Payment Date shall be computed on the basis of a <FONT STYLE="white-space:nowrap">360-day</FONT> year of twelve <FONT STYLE="white-space:nowrap">30-day</FONT> months. In the event that any date on which interest is payable on this Note is
not a Business Day, then payment of interest payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay). The interest installment so payable, and
punctually paid or duly provided for, on any Interest Payment Date will, as provided in the Indenture (hereafter defined), be paid to the person in whose name this Note (or one or more Predecessor Securities, as defined in said Indenture) is
registered at the close of business on the regular record date for such interest installment which shall be the February&nbsp;28 or August&nbsp;31 preceding such Interest Payment Date. Any such interest installment not punctually paid or duly
provided for (as defined in the Indenture, the &#147;<B>Defaulted Interest</B>&#148;) shall forthwith cease to be payable to the registered holders on such regular record date, and may be paid to the person in whose name this Note (or one or more
Predecessor Securities) is registered at the close of business on a special record date to be fixed by the Trustee for the payment of such Defaulted Interest, which shall not be more than 15 nor less than 10 days prior to the date of the proposed
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-2 </P>

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payment, and not less than 10 days after the receipt by the Trustee of the notice of the proposed payment or at any time in any other lawful manner not inconsistent with the requirements of any
securities exchange on which the Notes may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture. The principal of (and premium, if any) and the interest on this Note shall be payable at the
office or agency of the Trustee maintained for that purpose in any coin or currency of the United States of America which at the time of payment is legal tender for payment of public and private debts; <I>provided</I>, <I>however</I>, that payment
of interest may be made at the option of the Issuer by check mailed to the registered holder at such address as shall appear in the Security Register. Notwithstanding the foregoing, so long as the registered holder of this Note is Cede&nbsp;&amp;
Co., the payment of the principal of (and premium, if any) and interest on this Note will be made at such place and to such account as may be designated by DTC. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The indebtedness evidenced by this Note is, to the extent provided in the Indenture, senior and unsecured and will rank in right of payment on
parity with all other senior unsecured obligations of the Issuer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note shall not be entitled to any benefit under the Indenture
hereinafter referred to or be valid until the Certificate of Authentication hereon shall have been signed manually by or on behalf of the Trustee. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The provisions of this Note are continued on the reverse side hereof and such continued provisions shall for all purposes have the same effect
as though fully set forth at this place. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-3 </P>

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<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the Issuer has caused this instrument to be executed. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated: January&nbsp;15, 2019 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="6%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="92%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="11%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="87%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">Attest:</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">&nbsp;&nbsp;&nbsp;&nbsp;By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>[Signature Page to Global Note] </I></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-4 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">CERTIFICATE OF AUTHENTICATION </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This is one of the Notes of the series of Notes described in the <FONT STYLE="white-space:nowrap">within-mentioned</FONT> Indenture. </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="100%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">THE BANK OF NEW YORK MELLON, as
Trustee</P></TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="5%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="93%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Authorized Signatory</TD></TR>
</TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated:<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-5 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ASSIGNMENT FORM </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">FOR VALUE RECEIVED, the undersigned hereby </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">sells, assigns and transfers to </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Insert Social Security number or other
identifying number of assignee) </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Please print or typewrite name and address, including zip code of assignee) </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">the within Note of Marsh&nbsp;&amp; McLennan Companies, Inc. and hereby does irrevocably constitute and appoint </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Attorney to transfer said Note on the books of the <FONT STYLE="white-space:nowrap">within-named</FONT> Issuer with full power of substitution in the premises.
</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="31%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="33%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="33%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Dated:___________________</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership
in an approved signature guarantee medallion program pursuant to Securities and Exchange Commission <FONT STYLE="white-space:nowrap">Rule&nbsp;17Ad-15.</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">NOTICE: The signature to this assignment must correspond with the name as it appears on the first page of the within Note in every particular, without
alteration or enlargement or any change whatever. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-6 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4.375% Senior Notes due 2029 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The
initial aggregate principal amount of this Global Security is $[500,000,000] / [500,000,000] / [250,000,000]. The following increases or decreases in this Global Security have been made: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">No: _____ </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:8pt" ALIGN="center">


<TR>
<TD WIDTH="24%"></TD>
<TD VALIGN="bottom"></TD>
<TD WIDTH="24%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="25%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="24%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; ">Date</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount of this</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Global Security</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Notation Explaining</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount Recorded</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Signature of authorized</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">officer of Trustee or</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Depositary</P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-7 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>4.375% Senior Notes due 2029 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note is one of a duly authorized series of Securities (referred to in the Base Indenture (hereafter defined)), of the Issuer (herein
sometimes referred to as the &#147;<B>Notes</B>&#148;), all such Securities issued or to be issued in one or more series under and pursuant to an indenture (the &#147;<B>Base Indenture</B>&#148;), dated as of July&nbsp;15, 2011 between the Issuer
and The Bank of New York Mellon, as Trustee (the &#147;<B>Trustee</B>&#148;), as supplemented in the case of the Notes by the Eleventh Supplemental Indenture, dated as of January&nbsp;15, 2019, between the Issuer and the Trustee (the Base Indenture,
as so supplemented, the &#147;<B>Indenture</B>&#148;), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights, limitations of rights, obligations, duties and immunities thereunder of the
Trustee, the Issuer and the holders of the Notes. This series of Notes is initially limited in aggregate principal amount as specified in said Eleventh Supplemental Indenture. This series of Notes and any Additional Notes of this series shall
constitute one series for all purposes under the Indenture, including without limitation, amendments, waivers and redemptions. The terms and conditions of this series of Notes and any Additional Notes of this series (other than the issue price, the
date of issuance, the payment of interest accruing prior to the issue date of the Additional Notes and the first payment of interest following such issue date) shall be the same and shall bear the same CUSIP number. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes may be redeemed in whole at any time or in part from time to time, at the option of the Issuer. The redemption price (the
&#147;<B>Redemption Price</B>&#148;) of the Notes to be redeemed shall be calculated as follows, plus, in each case, accrued and unpaid interest on the principal amount of the Notes being redeemed to but excluding the redemption date: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(A) If the redemption date is prior to December&nbsp;15, 2028, the Notes to be redeemed may be redeemed by the Issuer at a Redemption Price
equal to the greater of (1) 100% of the principal amount of the Notes to be redeemed and (2)&nbsp;the sum of the present values of the remaining scheduled payments of principal of and interest on the Notes to be redeemed that would be due if the
Notes matured on December&nbsp;15, 2028 (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve <FONT
STYLE="white-space:nowrap">30-day</FONT> months) at the then current Treasury Rate plus 25 basis points. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(B) If the redemption date is on
or after December&nbsp;15, 2028, the Notes to be redeemed may be redeemed by the Issuer at a Redemption Price equal to 100% of the principal amount of the Notes to be redeemed. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-8 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In case the Issuer shall desire to exercise such right to redeem all or, as the case may be,
a portion of the Notes, the Issuer shall, or shall cause the Trustee to, give notice of such redemption to holders of the Notes to be redeemed by transmitting a notice of such redemption not less than 30 days and not more than 60 days before the
date fixed for redemption to such holders. Any notice that is delivered in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the registered holder received the notice. In any case, failure duly to give
such notice to the holder of any Note designated for redemption in whole or in part, or any defect in the notice, shall not affect the validity of the proceedings for the redemption of any other Note. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Each such notice of redemption shall specify the amount of Notes to be redeemed, the date fixed for redemption and the applicable Redemption
Price at which the Notes are to be redeemed, and shall state that payment of the Redemption Price of such Notes to be redeemed will be made at the office or agency of the Issuer in the Borough of Manhattan, the City and State of New York, upon
presentation and surrender of such Notes, that interest accrued to the date fixed for redemption will be paid as specified in said notice and, that from and after said date interest will cease to accrue; except that interest shall continue to accrue
on any such Note or portion thereof with respect to which the Issuer defaults in the payment of such Redemption Price and accrued interest. If less than all the Notes are to be redeemed, the notice to the holders of the Notes to be redeemed in whole
or in part shall specify the particular Notes to be redeemed. In case any Note is to be redeemed in part only, the notice that relates to such Note shall state the portion of the principal amount thereof to be redeemed, and shall state that on and
after the redemption date, upon surrender of such security, a new Note in principal amount equal to the unredeemed portion thereof will be issued. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the Trustee is to provide notice to the holders of the Notes as described herein, for a partial or full redemption, the Issuer shall give
the Trustee at least 45 days&#146; notice in advance of the date fixed for redemption as to the aggregate principal amount of Notes to be redeemed, and thereupon, in the case of a partial redemption, the Notes to be redeemed will be selected in
accordance with the procedures of the Depositary in a manner that provides for the selection of a portion or portions (equal to two thousand U.S. dollars ($2,000) or integral multiples of $1,000 in excess thereof) of the principal amount of such
Notes of a denomination larger than $2,000. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer may, if and whenever it shall so elect, by delivery of instructions signed on its
behalf by its President or any Vice President, instruct the Trustee or any paying agent to call all or any part of the Notes for redemption and to give notice of redemption in the manner set forth in this Note, such notice to be in the name of the
Issuer or its own name as the Trustee or such paying agent may deem advisable. In any case in which notice of redemption is to be given by the </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-9 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
Trustee or any such paying agent, the Issuer shall deliver or cause to be delivered to, or permit to remain with, the Trustee or such paying agent, as the case may be, such Security Register,
transfer books or other records, or suitable copies or extracts therefrom, sufficient to enable the Trustee or such paying agent to give any notice by mail that may be required under the provisions stated herein. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Subject to Section&nbsp;2.11 of the Base Indenture, the Issuer shall not be required (i)&nbsp;to issue, register the transfer of or exchange
any Notes during a period beginning at the opening of business 15 days before the day of the delivery of a notice of redemption of the Notes selected for redemption and ending at the close of business on the day of such delivery, or (ii)&nbsp;to
register the transfer of or exchange any Notes so selected for redemption in whole or in part, except the unredeemed portion of any such Notes being redeemed in part. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the giving of notice of redemption shall have been completed as above provided, the Notes or portions of the Notes to be redeemed specified
in such notice shall become due and payable on the date and at the place stated in such notice at the applicable Redemption Price, and interest on such Notes shall cease to accrue on and after the date fixed for redemption, unless the Issuer shall
default in the payment of such Redemption Price and accrued interest. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Issue</B>&#148; means, with respect to
the Notes, the United States Treasury security selected by the Independent Investment Banker as having an actual or interpolated maturity comparable to the remaining term of the Notes to be redeemed (assuming for this purpose, that the Notes matured
on December&nbsp;15, 2028) that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Notes. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Price</B>&#148; means, with respect to any redemption date, (1)&nbsp;the average of the Reference Treasury Dealer
Quotations for such redemption date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2)&nbsp;if the Independent Investment Banker is provided with fewer than four such Reference Treasury Dealer Quotations, the
average of all such quotations. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Independent Investment Banker</B>&#148; means one of the Reference Treasury Dealers appointed by
the Issuer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer</B>&#148; means (i)&nbsp;Goldman Sachs&nbsp;&amp; Co. LLC and its successors,
(ii)&nbsp;Citigroup Global Markets Inc. and its successors, (iii)&nbsp;Deutsche Bank Securities Inc. and its successors and (iv)&nbsp;Merrill Lynch, Pierce, Fenner&nbsp;&amp; Smith Incorporated and its successors, who are primary U.S. Government
securities dealers for the City of New York (each a &#147;<B>Primary Treasury Dealer</B>&#148;), and any other Primary Treasury Dealer as the Issuer may specify from time to time; <I>provided</I>, <I>however</I>, that if any of them ceases to be a
Primary Treasury Dealer, the Issuer will substitute another Primary Treasury Dealer. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-10 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer Quotations</B>&#148; means, with respect to each
Reference Treasury Dealer and any redemption date in respect of the Notes, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed as a percentage of its principal
amount) quoted in writing to the Independent Investment Banker by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day preceding such redemption date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Treasury Rate</B>&#148; means, with respect to any redemption date in respect of the Notes, the rate per year equal to the semiannual
equivalent yield to maturity or interpolated (on a day count basis) of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury
Price for such redemption date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If, (A)&nbsp;the Issuer&#146;s pending acquisition of Jardine Lloyd Thomson Group plc (the
&#147;<B>Acquisition</B>&#148;) is not completed by the parties to that certain Cooperation Agreement, dated as of September&nbsp;18, 2018, by and among the Issuer, MMC Treasury Holdings (UK) Limited, a wholly-owned subsidiary of the Issuer, and
Jardine Lloyd Thomson Group plc (the &#147;<B>Cooperation Agreement</B>&#148;), on or prior to December&nbsp;31, 2019, (B) the Cooperation Agreement is terminated or (C)&nbsp;the Issuer notifies the Trustee that it will not pursue the consummation
of the Acquisition (each, a &#147;<B>Special Mandatory Redemption Event</B>&#148;), then the Issuer shall redeem all of the Notes on the Special Mandatory Redemption Date at a special mandatory redemption price equal to 101% of the aggregate
principal amount of the Special Mandatory Redemption Notes to be redeemed, plus accrued and unpaid interest from and including the date of initial issuance, or the most recent date to which interest has been paid, whichever is later, to but not
including the Special Mandatory Redemption Date (the &#147;<B>Special Mandatory Redemption Price</B>&#148;). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Upon the occurrence of a
Special Mandatory Redemption Event, promptly, but in no event more than five (5)&nbsp;Business Days, following such Special Mandatory Redemption Event, the Issuer shall deliver notice to the Trustee of such special mandatory redemption and the date
upon which such Special Mandatory Redemption Notes will be redeemed, which shall be no later than the third (3<SUP STYLE="font-size:85%; vertical-align:top">rd</SUP>) Business Day following the date of such notice (the &#147;<B>Special Mandatory
Redemption Date</B>&#148;), and a notice to registered holders of the Notes that such Notes shall be redeemed and specifying the Special Mandatory Redemption Date and such other information as required, to the extent applicable, by the Base
Indenture (the &#147;<B>Special Mandatory Redemption Notice</B>&#148;), which </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-11 </P>

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shall be delivered in the name and at the expense of the Issuer. The Trustee shall promptly mail or electronically deliver the Special Mandatory Redemption Notice, according to the procedures of
The Depository Trust Company, to each registered holder of Notes to be redeemed at such holder&#146;s registered address. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If funds
sufficient to pay the Special Mandatory Redemption Price of all of the Notes to be redeemed on the Special Mandatory Redemption Date are deposited with a Paying Agent or the Trustee on or before such Special Mandatory Redemption Date, then on and
after such Special Mandatory Redemption Date, the Notes shall cease to bear interest and, other than the right to receive the Special Mandatory Redemption Price, all rights under the Notes shall terminate. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Indenture contains provisions permitting the Issuer and the Trustee, with the consent of the holders of not less than a majority in
aggregate principal amount of the Securities of all of the series at the time Outstanding affected thereby (all such series voting together as a single class), as defined in the Indenture, to execute supplemental indentures for the purpose of adding
any provisions to or changing in any manner or eliminating any of the provisions of the Base Indenture or of any supplemental indenture or of modifying in any manner the rights of the holders of the Notes; <I>provided, however,</I> that no such
supplemental indenture shall, without the consent of the holders of each Security then Outstanding and affected thereby (i)&nbsp;extend the fixed maturity of any Securities, including the Notes, or reduce the principal amount thereof, or reduce the
rate or extend the time of payment of interest thereon, or reduce any premium payable upon the redemption thereof, or (ii)&nbsp;reduce the aforesaid percentage of Securities, the holders of which are required to consent to any such supplemental
indenture. The Indenture also contains provisions permitting the holders of a majority in aggregate principal amount of the Securities of all series at the time Outstanding affected thereby (all such series voting together as a single class), to
waive any past default in the performance of any of the covenants contained in the Base Indenture, or established pursuant to the Base Indenture with respect to such series, and its consequences, except a default in the payment of the principal of
or premium, if any, or interest on any Securities, including the Notes, in which case, each such affected series voting as a separate class. Any such consent or waiver by the registered holder of this Note (unless revoked as provided in the Base
Indenture) shall be conclusive and binding upon such holder and upon all future holders and owners of this Note and of any Note issued in exchange herefor or in place hereof (whether by registration of transfer or otherwise), irrespective of whether
or not any notation of such consent or waiver is made upon this Note. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-12 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No reference herein to the Indenture and no provision of this Note or of the Indenture shall
alter or impair the obligation of the Issuer, which is absolute and unconditional, to pay the principal of and premium, if any, and interest on this Note at the time and place and at the rate and in the money herein prescribed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer is subject to certain covenants contained in the Indenture with respect to, and for the benefit of the holders of, the Notes. The
Trustee shall not be obligated to monitor or confirm, on a continuing basis or otherwise, the Issuer&#146;s compliance with the covenants contained in the Indenture or with respect to reports or other certificates filed under the Indenture;<I>
provided</I>, <I>however</I>, that nothing herein shall relieve the Trustee of any obligations to monitor the Issuer&#146;s timely delivery of all reports and certificates required under Section&nbsp;5.03 of the Base Indenture and to fulfill its
obligations under Article&nbsp;VII of the Indenture. If an Event of Default as defined in the Indenture with respect to the Notes shall occur and be continuing, the principal of the Notes may be declared due and payable in the manner and with the
effect provided in the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in and subject to the provisions of the Indenture, the holder of this Note shall not have
the right to institute any proceeding with respect to the Indenture or for the appointment of a receiver or Trustee or for any other remedy thereunder, unless such holder shall have previously given the Trustee written notice of a continuing Event
of Default with respect to the Notes, the holders of not less than 25% in principal amount of the Outstanding Notes (in the case of an Event of Default described in clauses (a)(i) or (a)(ii) of Section&nbsp;6.01 of the Base Indenture, each such
series voting as a separate class, and in the case of an Event of Default described in clauses (a)(iii), (a)(iv), (a)(v) or (a)(vi) of Section&nbsp;6.01 of the Base Indenture, all affected series voting together as a single class) shall have made
written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee reasonable indemnity and the Trustee shall have failed to institute any such proceeding for 60&nbsp;days after receipt of
such notice, request and offer of indemnity and the Trustee shall not have received from the holders of a majority in principal amount of the Notes at the time Outstanding (voting as provided in Section&nbsp;6.04(b) of the Base Indenture) a
direction inconsistent with such request. The foregoing shall not apply to any suit instituted by the holder of this Note for the enforcement of any payment of principal hereof or any interest on or after the respective due dates expressed herein.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in the Indenture and subject to certain limitations therein set forth, this Note is transferable by the registered holder
hereof on the Security Register of the Issuer, upon surrender of this Note for registration of transfer at the office or agency of the Issuer in the Borough of Manhattan, the City and State of New&nbsp;York accompanied by a written instrument or
instruments of transfer in form satisfactory to the Issuer or the Trustee duly executed by the registered holder hereof or his attorney duly authorized in writing, and thereupon one or more new Notes of authorized denominations and for the same
aggregate principal amount and series will be issued to the designated transferee or transferees. No service charge will be made for any such transfer, but the Issuer may require payment of a sum sufficient to cover any tax or other governmental
charge payable in relation thereto. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-13 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Prior to due presentment for registration of transfer of this Note, the Issuer, the Trustee,
any paying agent and any Security Registrar may deem and treat the registered holder hereof as the absolute owner hereof (whether or not this Note shall be overdue and notwithstanding any notice of ownership or writing hereon made by anyone other
than the Security Registrar) for the purpose of receiving payment of or on account of the principal hereof and premium, if any, and interest due hereon and for all other purposes, and neither the Issuer nor the Trustee nor any paying agent nor any
Note Registrar shall be affected by any notice to the contrary. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No recourse shall be had for the payment of the principal of or the
interest on this Note, or for any claim based hereon, or otherwise in respect hereof, or based on or in respect of the Indenture, against any incorporator, stockholder, officer or director, past, present or future, as such, of the Issuer or of any
predecessor or successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise, all such liability being, by the acceptance hereof and as part of the consideration
for the issuance hereof, expressly waived and released. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes are issuable only in registered form without coupons in authorized
denominations. As provided in the Indenture and subject to certain limitations herein and therein set forth, Notes so issued are exchangeable for a like aggregate principal amount of Notes of a different authorized denomination, as requested by the
holder surrendering the same. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">All terms used in this Note which are defined in the Indenture shall have the meanings assigned to them in
the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">THE INDENTURE AND THE NOTES INCLUDING THIS NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE
OF NEW&nbsp;YORK. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Issuer has
caused &#147;CUSIP&#148; numbers to be printed on the Notes as a convenience to the holders of the Notes. No representation is made as to the correctness or accuracy of such CUSIP numbers as printed on the Notes, and reliance may be placed only on
the other identification numbers printed hereon. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-14 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Unless the certificate of authentication hereon has been executed by or on behalf of the
Trustee by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purposes. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">C-15 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit D </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW&nbsp;YORK CORPORATION (&#147;<B>DTC</B>&#148;), TO
THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE&nbsp;&amp; CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE&nbsp;&amp; CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE&nbsp;&amp; CO., HAS AN INTEREST HEREIN. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE FORM IN ACCORDANCE WITH
THE PROVISIONS OF THE INDENTURE AND THE TERMS OF THE SECURITIES AND EXCEPT AS OTHERWISE PROVIDED IN SECTION 2.11 OF THE BASE INDENTURE, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR
ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-1 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Certificate
No.&nbsp;1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$500,000,000 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CUSIP No.&nbsp;571748 BH4 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ISIN No. US571748BH49 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>4.750% Senior Notes due 2039 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC., a Delaware corporation (the &#147;<B>Issuer</B>&#148;, which term includes any successor
corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede&nbsp;&amp; Co., or its registered assigns, the principal sum of FIVE HUNDRED MILLION DOLLARS ($500,000,000) (which aggregate principal
amount may from time to time be increased or decreased to such other aggregate principal amounts by adjustments made on the Schedule of Increases or Decreases in Global Security attached hereto) on March&nbsp;15, 2039 and to pay interest on said
principal sum from January&nbsp;15, 2019 or from the most recent interest payment date (each such date, an &#147;<B>Interest Payment Date</B>&#148;) to which interest has been paid or duly provided for semiannually on March&nbsp;15 and
September&nbsp;15 of each year commencing September&nbsp;15, 2019 at the rate of 4.750% per annum until the principal hereof shall have become due and payable, and on any overdue principal and premium, if any, and (without duplication and to the
extent that payment of such interest is enforceable under applicable law) on any overdue installment of interest at the same rate per annum. The amount of interest payable on any Interest Payment Date shall be computed on the basis of a <FONT
STYLE="white-space:nowrap">360-day</FONT> year of twelve <FONT STYLE="white-space:nowrap">30-day</FONT> months. In the event that any date on which interest is payable on this Note is not a Business Day, then payment of interest payable on such date
will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay). The interest installment so payable, and punctually paid or duly provided for, on any Interest Payment Date
will, as provided in the Indenture (hereafter defined), be paid to the person in whose name this Note (or one or more Predecessor Securities, as defined in said Indenture) is registered at the close of business on the regular record date for such
interest installment which shall be the February&nbsp;28 or August&nbsp;31 preceding such Interest Payment Date. Any such interest installment not punctually paid or duly provided for (as defined in the Indenture, the &#147;<B>Defaulted
Interest</B>&#148;) shall forthwith cease to be payable to the registered holders on such regular record date, and may be paid to the person in whose name this Note (or one or more Predecessor Securities) is registered at the close of business on a
special record date to be fixed by the Trustee for the payment of such Defaulted Interest, which shall not be more than 15 nor less than 10 days prior to the date of the proposed payment, and not less than 10 days after the receipt by the Trustee of
the notice of the proposed payment </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-2 </P>

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or at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes may be listed, and upon such notice as may be required by such
exchange, all as more fully provided in the Indenture. The principal of (and premium, if any) and the interest on this Note shall be payable at the office or agency of the Trustee maintained for that purpose in any coin or currency of the United
States of America which at the time of payment is legal tender for payment of public and private debts; <I>provided</I>, <I>however</I>, that payment of interest may be made at the option of the Issuer by check mailed to the registered holder at
such address as shall appear in the Security Register. Notwithstanding the foregoing, so long as the registered holder of this Note is Cede&nbsp;&amp; Co., the payment of the principal of (and premium, if any) and interest on this Note will be made
at such place and to such account as may be designated by DTC. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The indebtedness evidenced by this Note is, to the extent provided in the
Indenture, senior and unsecured and will rank in right of payment on parity with all other senior unsecured obligations of the Issuer. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note shall not be entitled to any benefit under the Indenture hereinafter referred to or be valid until the Certificate of Authentication
hereon shall have been signed manually by or on behalf of the Trustee. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The provisions of this Note are continued on the reverse side
hereof and such continued provisions shall for all purposes have the same effect as though fully set forth at this place. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-3 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the Issuer has caused this instrument to be executed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated: January&nbsp;15, 2019 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD VALIGN="top" COLSPAN="3">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
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<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
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<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" COLSPAN="3">Attest:</TD></TR>
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<TD HEIGHT="16" COLSPAN="2"></TD></TR>
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<TD VALIGN="top">&nbsp;&nbsp;&nbsp;&nbsp;By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>[Signature Page to Global Note] </I></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-4 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">CERTIFICATE OF AUTHENTICATION </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This is one of the Notes of the series of Notes described in the <FONT STYLE="white-space:nowrap">within-mentioned</FONT> Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">THE BANK OF NEW YORK MELLON, as Trustee </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top">By</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Authorized Signatory</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated:
<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;</U> </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-5 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ASSIGNMENT FORM </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">FOR VALUE RECEIVED, the undersigned hereby </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">sells, assigns and transfers to </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Insert Social Security number or other
identifying number of assignee) </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Please print or typewrite name and address, including zip code of assignee) </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">the within Note of Marsh&nbsp;&amp; McLennan Companies, Inc. and hereby does irrevocably constitute and appoint </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Attorney to transfer said Note on the books of the <FONT STYLE="white-space:nowrap">within-named</FONT> Issuer with full power of substitution in the premises.
</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Dated:___________________</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership
in an approved signature guarantee medallion program pursuant to Securities and Exchange Commission <FONT STYLE="white-space:nowrap">Rule&nbsp;17Ad-15.</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">NOTICE: The signature to this assignment must correspond with the name as it appears on the first page of the within Note in every particular, without
alteration or enlargement or any change whatever. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-6 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4.750% Senior Notes due 2039 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The
initial aggregate principal amount of this Global Security is $500,000,000. The following increases or decreases in this Global Security have been made: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">No: _____ </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="24%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="25%"></TD>
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<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; ">Date</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount of this Global<BR>Security</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Notation Explaining Principal Amount<BR>Recorded</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Signature of authorized officer of<BR>Trustee or
Depositary</P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-7 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>4.750% Senior Notes due 2039 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note is one of a duly authorized series of Securities (referred to in the Base Indenture (hereafter defined)), of the Issuer (herein
sometimes referred to as the &#147;<B>Notes</B>&#148;), all such Securities issued or to be issued in one or more series under and pursuant to an indenture (the &#147;<B>Base Indenture</B>&#148;), dated as of July&nbsp;15, 2011 between the Issuer
and The Bank of New York Mellon, as Trustee (the &#147;<B>Trustee</B>&#148;), as supplemented in the case of the Notes by the Eleventh Supplemental Indenture, dated as of January&nbsp;15, 2019, between the Issuer and the Trustee (the Base Indenture,
as so supplemented, the &#147;<B>Indenture</B>&#148;), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights, limitations of rights, obligations, duties and immunities thereunder of the
Trustee, the Issuer and the holders of the Notes. This series of Notes is initially limited in aggregate principal amount as specified in said Eleventh Supplemental Indenture. This series of Notes and any Additional Notes of this series shall
constitute one series for all purposes under the Indenture, including without limitation, amendments, waivers and redemptions. The terms and conditions of this series of Notes and any Additional Notes of this series (other than the issue price, the
date of issuance, the payment of interest accruing prior to the issue date of the Additional Notes and the first payment of interest following such issue date) shall be the same and shall bear the same CUSIP number. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes may be redeemed in whole at any time or in part from time to time, at the option of the Issuer. The redemption price (the
&#147;<B>Redemption Price</B>&#148;) of the Notes to be redeemed shall be calculated as follows, plus, in each case, accrued and unpaid interest on the principal amount of the Notes being redeemed to but excluding the redemption date: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(A) If the redemption date is prior to September&nbsp;15, 2038, the Notes to be redeemed may be redeemed by the Issuer at a Redemption Price
equal to the greater of (1) 100% of the principal amount of the Notes to be redeemed and (2)&nbsp;the sum of the present values of the remaining scheduled payments of principal of and interest on the Notes to be redeemed that would be due if the
Notes matured on September&nbsp;15, 2038 (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve <FONT
STYLE="white-space:nowrap">30-day</FONT> months) at the then current Treasury Rate plus 30 basis points. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(B) If the redemption date is on
or after September&nbsp;15, 2038, the Notes to be redeemed may be redeemed by the Issuer at a Redemption Price equal to 100% of the principal amount of the Notes to be redeemed. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-8 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In case the Issuer shall desire to exercise such right to redeem all or, as the case may be,
a portion of the Notes, the Issuer shall, or shall cause the Trustee to, give notice of such redemption to holders of the Notes to be redeemed by transmitting a notice of such redemption not less than 30 days and not more than 60 days before the
date fixed for redemption to such holders. Any notice that is delivered in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the registered holder received the notice. In any case, failure duly to give
such notice to the holder of any Note designated for redemption in whole or in part, or any defect in the notice, shall not affect the validity of the proceedings for the redemption of any other Note. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Each such notice of redemption shall specify the amount of Notes to be redeemed, the date fixed for redemption and the applicable Redemption
Price at which the Notes are to be redeemed, and shall state that payment of the Redemption Price of such Notes to be redeemed will be made at the office or agency of the Issuer in the Borough of Manhattan, the City and State of New York, upon
presentation and surrender of such Notes, that interest accrued to the date fixed for redemption will be paid as specified in said notice and, that from and after said date interest will cease to accrue; except that interest shall continue to accrue
on any such Note or portion thereof with respect to which the Issuer defaults in the payment of such Redemption Price and accrued interest. If less than all the Notes are to be redeemed, the notice to the holders of the Notes to be redeemed in whole
or in part shall specify the particular Notes to be redeemed. In case any Note is to be redeemed in part only, the notice that relates to such Note shall state the portion of the principal amount thereof to be redeemed, and shall state that on and
after the redemption date, upon surrender of such security, a new Note in principal amount equal to the unredeemed portion thereof will be issued. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the Trustee is to provide notice to the holders of the Notes as described herein, for a partial or full redemption, the Issuer shall give
the Trustee at least 45 days&#146; notice in advance of the date fixed for redemption as to the aggregate principal amount of Notes to be redeemed, and thereupon, in the case of a partial redemption, the Notes to be redeemed will be selected in
accordance with the procedures of the Depositary in a manner that provides for the selection of a portion or portions (equal to two thousand U.S. dollars ($2,000) or integral multiples of $1,000 in excess thereof) of the principal amount of such
Notes of a denomination larger than $2,000. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer may, if and whenever it shall so elect, by delivery of instructions signed on its
behalf by its President or any Vice President, instruct the Trustee or any paying agent to call all or any part of the Notes for redemption and to give notice of redemption in the manner set forth in this Note, such notice to be in the name of the
Issuer or its own name as the Trustee or such paying agent may deem advisable. In any case in which notice of redemption is to be given by the </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-9 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
Trustee or any such paying agent, the Issuer shall deliver or cause to be delivered to, or permit to remain with, the Trustee or such paying agent, as the case may be, such Security Register,
transfer books or other records, or suitable copies or extracts therefrom, sufficient to enable the Trustee or such paying agent to give any notice by mail that may be required under the provisions stated herein. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Subject to Section&nbsp;2.11 of the Base Indenture, the Issuer shall not be required (i)&nbsp;to issue, register the transfer of or exchange
any Notes during a period beginning at the opening of business 15 days before the day of the delivery of a notice of redemption of the Notes selected for redemption and ending at the close of business on the day of such delivery, or (ii)&nbsp;to
register the transfer of or exchange any Notes so selected for redemption in whole or in part, except the unredeemed portion of any such Notes being redeemed in part. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the giving of notice of redemption shall have been completed as above provided, the Notes or portions of the Notes to be redeemed specified
in such notice shall become due and payable on the date and at the place stated in such notice at the applicable Redemption Price, and interest on such Notes shall cease to accrue on and after the date fixed for redemption, unless the Issuer shall
default in the payment of such Redemption Price and accrued interest. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Issue</B>&#148; means, with respect to
the Notes, the United States Treasury security selected by the Independent Investment Banker as having an actual or interpolated maturity comparable to the remaining term of the Notes to be redeemed (assuming for this purpose, that the Notes matured
on September&nbsp;15, 2038) that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Notes. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Price</B>&#148; means, with respect to any redemption date, (1)&nbsp;the average of the Reference Treasury Dealer
Quotations for such redemption date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2)&nbsp;if the Independent Investment Banker is provided with fewer than four such Reference Treasury Dealer Quotations, the
average of all such quotations. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Independent Investment Banker</B>&#148; means one of the Reference Treasury Dealers appointed by
the Issuer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer</B>&#148; means (i)&nbsp;Goldman Sachs&nbsp;&amp; Co. LLC and its successors,
(ii)&nbsp;Citigroup Global Markets Inc. and its successors, (iii)&nbsp;Deutsche Bank Securities Inc. and its successors and (iv)&nbsp;Merrill Lynch, Pierce, Fenner&nbsp;&amp; Smith Incorporated and its successors, who are primary U.S. Government
securities dealers for the City of New York (each a &#147;<B>Primary Treasury Dealer</B>&#148;), and any other Primary Treasury Dealer as the Issuer may specify from time to time; <I>provided</I>, <I>however</I>, that if any of them ceases to be a
Primary Treasury Dealer, the Issuer will substitute another Primary Treasury Dealer. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-10 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer Quotations</B>&#148; means, with respect to each
Reference Treasury Dealer and any redemption date in respect of the Notes, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed as a percentage of its principal
amount) quoted in writing to the Independent Investment Banker by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day preceding such redemption date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Treasury Rate</B>&#148; means, with respect to any redemption date in respect of the Notes, the rate per year equal to the semiannual
equivalent yield to maturity or interpolated (on a day count basis) of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury
Price for such redemption date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If, (A)&nbsp;the Issuer&#146;s pending acquisition of Jardine Lloyd Thomson Group plc (the
&#147;<B>Acquisition</B>&#148;) is not completed by the parties to that certain Cooperation Agreement, dated as of September&nbsp;18, 2018, by and among the Issuer, MMC Treasury Holdings (UK) Limited, a wholly-owned subsidiary of the Issuer, and
Jardine Lloyd Thomson Group plc (the &#147;<B>Cooperation Agreement</B>&#148;), on or prior to December&nbsp;31, 2019, (B) the Cooperation Agreement is terminated or (C)&nbsp;the Issuer notifies the Trustee that it will not pursue the consummation
of the Acquisition (each, a &#147;<B>Special Mandatory Redemption Event</B>&#148;), then the Issuer shall redeem all of the Notes on the Special Mandatory Redemption Date at a special mandatory redemption price equal to 101% of the aggregate
principal amount of the Special Mandatory Redemption Notes to be redeemed, plus accrued and unpaid interest from and including the date of initial issuance, or the most recent date to which interest has been paid, whichever is later, to but not
including the Special Mandatory Redemption Date (the &#147;<B>Special Mandatory Redemption Price</B>&#148;). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Upon the occurrence of a
Special Mandatory Redemption Event, promptly, but in no event more than five (5)&nbsp;Business Days, following such Special Mandatory Redemption Event, the Issuer shall deliver notice to the Trustee of such special mandatory redemption and the date
upon which such Special Mandatory Redemption Notes will be redeemed, which shall be no later than the third (3<SUP STYLE="font-size:85%; vertical-align:top">rd</SUP>) Business Day following the date of such notice (the &#147;<B>Special Mandatory
Redemption Date</B>&#148;), and a notice to registered holders of the Notes that such Notes shall be redeemed and specifying the Special Mandatory Redemption Date and such other information as required, to the extent applicable, by the Base
Indenture (the &#147;<B>Special Mandatory Redemption Notice</B>&#148;), which </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-11 </P>

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shall be delivered in the name and at the expense of the Issuer. The Trustee shall promptly mail or electronically deliver the Special Mandatory Redemption Notice, according to the procedures of
The Depository Trust Company, to each registered holder of Notes to be redeemed at such holder&#146;s registered address. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If funds
sufficient to pay the Special Mandatory Redemption Price of all of the Notes to be redeemed on the Special Mandatory Redemption Date are deposited with a Paying Agent or the Trustee on or before such Special Mandatory Redemption Date, then on and
after such Special Mandatory Redemption Date, the Notes shall cease to bear interest and, other than the right to receive the Special Mandatory Redemption Price, all rights under the Notes shall terminate. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Indenture contains provisions permitting the Issuer and the Trustee, with the consent of the holders of not less than a majority in
aggregate principal amount of the Securities of all of the series at the time Outstanding affected thereby (all such series voting together as a single class), as defined in the Indenture, to execute supplemental indentures for the purpose of adding
any provisions to or changing in any manner or eliminating any of the provisions of the Base Indenture or of any supplemental indenture or of modifying in any manner the rights of the holders of the Notes; <I>provided, however,</I> that no such
supplemental indenture shall, without the consent of the holders of each Security then Outstanding and affected thereby (i)&nbsp;extend the fixed maturity of any Securities, including the Notes, or reduce the principal amount thereof, or reduce the
rate or extend the time of payment of interest thereon, or reduce any premium payable upon the redemption thereof, or (ii)&nbsp;reduce the aforesaid percentage of Securities, the holders of which are required to consent to any such supplemental
indenture. The Indenture also contains provisions permitting the holders of a majority in aggregate principal amount of the Securities of all series at the time Outstanding affected thereby (all such series voting together as a single class), to
waive any past default in the performance of any of the covenants contained in the Base Indenture, or established pursuant to the Base Indenture with respect to such series, and its consequences, except a default in the payment of the principal of
or premium, if any, or interest on any Securities, including the Notes, in which case, each such affected series voting as a separate class. Any such consent or waiver by the registered holder of this Note (unless revoked as provided in the Base
Indenture) shall be conclusive and binding upon such holder and upon all future holders and owners of this Note and of any Note issued in exchange herefor or in place hereof (whether by registration of transfer or otherwise), irrespective of whether
or not any notation of such consent or waiver is made upon this Note. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-12 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No reference herein to the Indenture and no provision of this Note or of the Indenture shall
alter or impair the obligation of the Issuer, which is absolute and unconditional, to pay the principal of and premium, if any, and interest on this Note at the time and place and at the rate and in the money herein prescribed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer is subject to certain covenants contained in the Indenture with respect to, and for the benefit of the holders of, the Notes. The
Trustee shall not be obligated to monitor or confirm, on a continuing basis or otherwise, the Issuer&#146;s compliance with the covenants contained in the Indenture or with respect to reports or other certificates filed under the Indenture;<I>
provided</I>, <I>however</I>, that nothing herein shall relieve the Trustee of any obligations to monitor the Issuer&#146;s timely delivery of all reports and certificates required under Section&nbsp;5.03 of the Base Indenture and to fulfill its
obligations under Article&nbsp;VII of the Indenture. If an Event of Default as defined in the Indenture with respect to the Notes shall occur and be continuing, the principal of the Notes may be declared due and payable in the manner and with the
effect provided in the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in and subject to the provisions of the Indenture, the holder of this Note shall not have
the right to institute any proceeding with respect to the Indenture or for the appointment of a receiver or Trustee or for any other remedy thereunder, unless such holder shall have previously given the Trustee written notice of a continuing Event
of Default with respect to the Notes, the holders of not less than 25% in principal amount of the Outstanding Notes (in the case of an Event of Default described in clauses (a)(i) or (a)(ii) of Section&nbsp;6.01 of the Base Indenture, each such
series voting as a separate class, and in the case of an Event of Default described in clauses (a)(iii), (a)(iv), (a)(v) or (a)(vi) of Section&nbsp;6.01 of the Base Indenture, all affected series voting together as a single class) shall have made
written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee reasonable indemnity and the Trustee shall have failed to institute any such proceeding for 60&nbsp;days after receipt of
such notice, request and offer of indemnity and the Trustee shall not have received from the holders of a majority in principal amount of the Notes at the time Outstanding (voting as provided in Section&nbsp;6.04(b) of the Base Indenture) a
direction inconsistent with such request. The foregoing shall not apply to any suit instituted by the holder of this Note for the enforcement of any payment of principal hereof or any interest on or after the respective due dates expressed herein.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in the Indenture and subject to certain limitations therein set forth, this Note is transferable by the registered holder
hereof on the Security Register of the Issuer, upon surrender of this Note for registration of transfer at the office or agency of the Issuer in the Borough of Manhattan, the City and State of New&nbsp;York accompanied by a written instrument or
instruments of transfer in form satisfactory to the Issuer or the Trustee duly executed by the registered holder hereof or his attorney duly authorized in writing, and thereupon one or more new Notes of authorized denominations and for the same
aggregate principal amount and series will be issued to the designated transferee or transferees. No service charge will be made for any such transfer, but the Issuer may require payment of a sum sufficient to cover any tax or other governmental
charge payable in relation thereto. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-13 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Prior to due presentment for registration of transfer of this Note, the Issuer, the Trustee,
any paying agent and any Security Registrar may deem and treat the registered holder hereof as the absolute owner hereof (whether or not this Note shall be overdue and notwithstanding any notice of ownership or writing hereon made by anyone other
than the Security Registrar) for the purpose of receiving payment of or on account of the principal hereof and premium, if any, and interest due hereon and for all other purposes, and neither the Issuer nor the Trustee nor any paying agent nor any
Note Registrar shall be affected by any notice to the contrary. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No recourse shall be had for the payment of the principal of or the
interest on this Note, or for any claim based hereon, or otherwise in respect hereof, or based on or in respect of the Indenture, against any incorporator, stockholder, officer or director, past, present or future, as such, of the Issuer or of any
predecessor or successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise, all such liability being, by the acceptance hereof and as part of the consideration
for the issuance hereof, expressly waived and released. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes are issuable only in registered form without coupons in authorized
denominations. As provided in the Indenture and subject to certain limitations herein and therein set forth, Notes so issued are exchangeable for a like aggregate principal amount of Notes of a different authorized denomination, as requested by the
holder surrendering the same. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">All terms used in this Note which are defined in the Indenture shall have the meanings assigned to them in
the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">THE INDENTURE AND THE NOTES INCLUDING THIS NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE
OF NEW&nbsp;YORK. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Issuer has
caused &#147;CUSIP&#148; numbers to be printed on the Notes as a convenience to the holders of the Notes. No representation is made as to the correctness or accuracy of such CUSIP numbers as printed on the Notes, and reliance may be placed only on
the other identification numbers printed hereon. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-14 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Unless the certificate of authentication hereon has been executed by or on behalf of the
Trustee by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purposes. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">D-15 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit E </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW&nbsp;YORK CORPORATION (&#147;<B>DTC</B>&#148;), TO
THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE&nbsp;&amp; CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE&nbsp;&amp; CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE&nbsp;&amp; CO., HAS AN INTEREST HEREIN. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE FORM IN ACCORDANCE WITH
THE PROVISIONS OF THE INDENTURE AND THE TERMS OF THE SECURITIES AND EXCEPT AS OTHERWISE PROVIDED IN SECTION 2.11 OF THE BASE INDENTURE, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR
ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-1 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Certificate No. [1] / [2] /
[3]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$[500,000,000] / [500,000,000] / [250,000,000] </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CUSIP No.&nbsp;571748 BJ0 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ISIN No. US571748BJ05 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN
COMPANIES, INC. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>4.900% Senior Notes due 2049 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC., a Delaware corporation (the &#147;<B>Issuer</B>&#148;, which term includes any successor
corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede&nbsp;&amp; Co., or its registered assigns, the principal sum of [FIVE HUNDRED] / [FIVE HUNDRED] / [TWO HUNDRED AND FIFTY] MILLION DOLLARS
($[500,000,000] / [500,000,000] / [250,000,000]) (which aggregate principal amount may from time to time be increased or decreased to such other aggregate principal amounts by adjustments made on the Schedule of Increases or Decreases in Global
Security attached hereto) on March&nbsp;15, 2049 and to pay interest on said principal sum from January&nbsp;15, 2019 or from the most recent interest payment date (each such date, an &#147;<B>Interest Payment Date</B>&#148;) to which interest has
been paid or duly provided for semiannually on March&nbsp;15 and September&nbsp;15 of each year commencing September&nbsp;15, 2019 at the rate of 4.900% per annum until the principal hereof shall have become due and payable, and on any overdue
principal and premium, if any, and (without duplication and to the extent that payment of such interest is enforceable under applicable law) on any overdue installment of interest at the same rate per annum. The amount of interest payable on any
Interest Payment Date shall be computed on the basis of a <FONT STYLE="white-space:nowrap">360-day</FONT> year of twelve <FONT STYLE="white-space:nowrap">30-day</FONT> months. In the event that any date on which interest is payable on this Note is
not a Business Day, then payment of interest payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay). The interest installment so payable, and
punctually paid or duly provided for, on any Interest Payment Date will, as provided in the Indenture (hereafter defined), be paid to the person in whose name this Note (or one or more Predecessor Securities, as defined in said Indenture) is
registered at the close of business on the regular record date for such interest installment which shall be the February&nbsp;28 or August&nbsp;31 preceding such Interest Payment Date. Any such interest installment not punctually paid or duly
provided for (as defined in the Indenture, the &#147;<B>Defaulted Interest</B>&#148;) shall forthwith cease to be payable to the registered holders on such regular record date, and may be paid to the person in whose name this Note (or one or more
Predecessor Securities) is registered at the close of business on a special record date to be fixed by the Trustee for the payment of such Defaulted Interest, which shall not be more than 15 nor less than 10 days prior to the date of the proposed
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-2 </P>

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payment, and not less than 10 days after the receipt by the Trustee of the notice of the proposed payment or at any time in any other lawful manner not inconsistent with the requirements of any
securities exchange on which the Notes may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture. The principal of (and premium, if any) and the interest on this Note shall be payable at the
office or agency of the Trustee maintained for that purpose in any coin or currency of the United States of America which at the time of payment is legal tender for payment of public and private debts; <I>provided</I>, <I>however</I>, that payment
of interest may be made at the option of the Issuer by check mailed to the registered holder at such address as shall appear in the Security Register. Notwithstanding the foregoing, so long as the registered holder of this Note is Cede&nbsp;&amp;
Co., the payment of the principal of (and premium, if any) and interest on this Note will be made at such place and to such account as may be designated by DTC. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The indebtedness evidenced by this Note is, to the extent provided in the Indenture, senior and unsecured and will rank in right of payment on
parity with all other senior unsecured obligations of the Issuer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note shall not be entitled to any benefit under the Indenture
hereinafter referred to or be valid until the Certificate of Authentication hereon shall have been signed manually by or on behalf of the Trustee. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The provisions of this Note are continued on the reverse side hereof and such continued provisions shall for all purposes have the same effect
as though fully set forth at this place. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-3 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the Issuer has caused this instrument to be executed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated: January&nbsp;15, 2019 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


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<TD WIDTH="92%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="11%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="87%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">Attest:</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">&nbsp;&nbsp;&nbsp;&nbsp;By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>[Signature Page to Global Note] </I></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-4 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">CERTIFICATE OF AUTHENTICATION </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This is one of the Notes of the series of Notes described in the <FONT STYLE="white-space:nowrap">within-mentioned</FONT> Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">THE BANK OF NEW YORK MELLON, as Trustee </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="5%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="93%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Authorized Signatory</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated:
<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;</U> </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-5 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ASSIGNMENT FORM </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">FOR VALUE RECEIVED, the undersigned hereby </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">sells, assigns and transfers to </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Insert Social Security number or other
identifying number of assignee) </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Please print or typewrite name and address, including zip code of assignee) </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">the within Note of Marsh&nbsp;&amp; McLennan Companies, Inc. and hereby does irrevocably constitute and appoint </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Attorney to transfer said Note on the books of the <FONT STYLE="white-space:nowrap">within-named</FONT> Issuer with full power of substitution in the premises.
</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="31%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="33%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="33%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Dated:___________________</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership
in an approved signature guarantee medallion program pursuant to Securities and Exchange Commission <FONT STYLE="white-space:nowrap">Rule&nbsp;17Ad-15.</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">NOTICE: The signature to this assignment must correspond with the name as it appears on the first page of the within Note in every particular, without
alteration or enlargement or any change whatever. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-6 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4.900% Senior Notes due 2049 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The
initial aggregate principal amount of this Global Security is $[500,000,000] / [500,000,000] / [250,000,000]. The following increases or decreases in this Global Security have been made: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">No: _____ </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:8pt" ALIGN="center">


<TR>
<TD WIDTH="24%"></TD>
<TD VALIGN="bottom"></TD>
<TD WIDTH="24%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="25%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="24%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; ">Date</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount of this</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Global Security</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Notation Explaining</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount Recorded</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Signature of authorized</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">officer of Trustee or</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Depositary</P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-7 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>4.900% Senior Notes due 2049 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note is one of a duly authorized series of Securities (referred to in the Base Indenture (hereafter defined)), of the Issuer (herein
sometimes referred to as the &#147;<B>Notes</B>&#148;), all such Securities issued or to be issued in one or more series under and pursuant to an indenture (the &#147;<B>Base Indenture</B>&#148;), dated as of July&nbsp;15, 2011 between the Issuer
and The Bank of New York Mellon, as Trustee (the &#147;<B>Trustee</B>&#148;), as supplemented in the case of the Notes by the Eleventh Supplemental Indenture, dated as of January&nbsp;15, 2019, between the Issuer and the Trustee (the Base Indenture,
as so supplemented, the &#147;<B>Indenture</B>&#148;), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights, limitations of rights, obligations, duties and immunities thereunder of the
Trustee, the Issuer and the holders of the Notes. This series of Notes is initially limited in aggregate principal amount as specified in said Eleventh Supplemental Indenture. This series of Notes and any Additional Notes of this series shall
constitute one series for all purposes under the Indenture, including without limitation, amendments, waivers and redemptions. The terms and conditions of this series of Notes and any Additional Notes of this series (other than the issue price, the
date of issuance, the payment of interest accruing prior to the issue date of the Additional Notes and the first payment of interest following such issue date) shall be the same and shall bear the same CUSIP number. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes may be redeemed in whole at any time or in part from time to time, at the option of the Issuer. The redemption price (the
&#147;<B>Redemption Price</B>&#148;) of the Notes to be redeemed shall be calculated as follows, plus, in each case, accrued and unpaid interest on the principal amount of the Notes being redeemed to but excluding the redemption date: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(A) If the redemption date is prior to September&nbsp;15, 2048, the Notes to be redeemed may be redeemed by the Issuer at a Redemption Price
equal to the greater of (1) 100% of the principal amount of the Notes to be redeemed and (2)&nbsp;the sum of the present values of the remaining scheduled payments of principal of and interest on the Notes to be redeemed that would be due if the
Notes matured on September&nbsp;15, 2048 (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis (assuming a <FONT STYLE="white-space:nowrap">360-day</FONT> year consisting of twelve <FONT
STYLE="white-space:nowrap">30-day</FONT> months) at the then current Treasury Rate plus 30 basis points. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(B) If the redemption date is on
or after September&nbsp;15, 2048, the Notes to be redeemed may be redeemed by the Issuer at a Redemption Price equal to 100% of the principal amount of the Notes to be redeemed. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-8 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In case the Issuer shall desire to exercise such right to redeem all or, as the case may be,
a portion of the Notes, the Issuer shall, or shall cause the Trustee to, give notice of such redemption to holders of the Notes to be redeemed by transmitting a notice of such redemption not less than 30 days and not more than 60 days before the
date fixed for redemption to such holders. Any notice that is delivered in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the registered holder received the notice. In any case, failure duly to give
such notice to the holder of any Note designated for redemption in whole or in part, or any defect in the notice, shall not affect the validity of the proceedings for the redemption of any other Note. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Each such notice of redemption shall specify the amount of Notes to be redeemed, the date fixed for redemption and the applicable Redemption
Price at which the Notes are to be redeemed, and shall state that payment of the Redemption Price of such Notes to be redeemed will be made at the office or agency of the Issuer in the Borough of Manhattan, the City and State of New York, upon
presentation and surrender of such Notes, that interest accrued to the date fixed for redemption will be paid as specified in said notice and, that from and after said date interest will cease to accrue; except that interest shall continue to accrue
on any such Note or portion thereof with respect to which the Issuer defaults in the payment of such Redemption Price and accrued interest. If less than all the Notes are to be redeemed, the notice to the holders of the Notes to be redeemed in whole
or in part shall specify the particular Notes to be redeemed. In case any Note is to be redeemed in part only, the notice that relates to such Note shall state the portion of the principal amount thereof to be redeemed, and shall state that on and
after the redemption date, upon surrender of such security, a new Note in principal amount equal to the unredeemed portion thereof will be issued. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the Trustee is to provide notice to the holders of the Notes as described herein, for a partial or full redemption, the Issuer shall give
the Trustee at least 45 days&#146; notice in advance of the date fixed for redemption as to the aggregate principal amount of Notes to be redeemed, and thereupon, in the case of a partial redemption, the Notes to be redeemed will be selected in
accordance with the procedures of the Depositary in a manner that provides for the selection of a portion or portions (equal to two thousand U.S. dollars ($2,000) or integral multiples of $1,000 in excess thereof) of the principal amount of such
Notes of a denomination larger than $2,000. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer may, if and whenever it shall so elect, by delivery of instructions signed on its
behalf by its President or any Vice President, instruct the Trustee or any paying agent to call all or any part of the Notes for redemption and to give notice of redemption in the manner set forth in this Note, such notice to be in the name of the
Issuer or its own name as the Trustee or such paying agent may deem advisable. In any case in which notice of redemption is to be given by the </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-9 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">
Trustee or any such paying agent, the Issuer shall deliver or cause to be delivered to, or permit to remain with, the Trustee or such paying agent, as the case may be, such Security Register,
transfer books or other records, or suitable copies or extracts therefrom, sufficient to enable the Trustee or such paying agent to give any notice by mail that may be required under the provisions stated herein. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Subject to Section&nbsp;2.11 of the Base Indenture, the Issuer shall not be required (i)&nbsp;to issue, register the transfer of or exchange
any Notes during a period beginning at the opening of business 15 days before the day of the delivery of a notice of redemption of the Notes selected for redemption and ending at the close of business on the day of such delivery, or (ii)&nbsp;to
register the transfer of or exchange any Notes so selected for redemption in whole or in part, except the unredeemed portion of any such Notes being redeemed in part. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the giving of notice of redemption shall have been completed as above provided, the Notes or portions of the Notes to be redeemed specified
in such notice shall become due and payable on the date and at the place stated in such notice at the applicable Redemption Price, and interest on such Notes shall cease to accrue on and after the date fixed for redemption, unless the Issuer shall
default in the payment of such Redemption Price and accrued interest. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Issue</B>&#148; means, with respect to
the Notes, the United States Treasury security selected by the Independent Investment Banker as having an actual or interpolated maturity comparable to the remaining term of the Notes to be redeemed (assuming for this purpose, that the Notes matured
on September&nbsp;15, 2048) that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Notes. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Comparable Treasury Price</B>&#148; means, with respect to any redemption date, (1)&nbsp;the average of the Reference Treasury Dealer
Quotations for such redemption date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2)&nbsp;if the Independent Investment Banker is provided with fewer than four such Reference Treasury Dealer Quotations, the
average of all such quotations. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Independent Investment Banker</B>&#148; means one of the Reference Treasury Dealers appointed by
the Issuer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer</B>&#148; means (i)&nbsp;Goldman Sachs&nbsp;&amp; Co. LLC and its successors,
(ii)&nbsp;Citigroup Global Markets Inc. and its successors, (iii)&nbsp;Deutsche Bank Securities Inc. and its successors and (iv)&nbsp;Merrill Lynch, Pierce, Fenner&nbsp;&amp; Smith Incorporated and its successors, who are primary U.S. Government
securities dealers for the City of New York (each a &#147;<B>Primary Treasury Dealer</B>&#148;), and any other Primary Treasury Dealer as the Issuer may specify from time to time; <I>provided</I>, <I>however</I>, that if any of them ceases to be a
Primary Treasury Dealer, the Issuer will substitute another Primary Treasury Dealer. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-10 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reference Treasury Dealer Quotations</B>&#148; means, with respect to each
Reference Treasury Dealer and any redemption date in respect of the Notes, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed as a percentage of its principal
amount) quoted in writing to the Independent Investment Banker by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day preceding such redemption date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Treasury Rate</B>&#148; means, with respect to any redemption date in respect of the Notes, the rate per year equal to the semiannual
equivalent yield to maturity or interpolated (on a day count basis) of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury
Price for such redemption date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Indenture contains provisions permitting the Issuer and the Trustee, with the consent of the holders
of not less than a majority in aggregate principal amount of the Securities of all of the series at the time Outstanding affected thereby (all such series voting together as a single class), as defined in the Indenture, to execute supplemental
indentures for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of the Base Indenture or of any supplemental indenture or of modifying in any manner the rights of the holders of the Notes;
<I>provided, however,</I> that no such supplemental indenture shall, without the consent of the holders of each Security then Outstanding and affected thereby (i)&nbsp;extend the fixed maturity of any Securities, including the Notes, or reduce the
principal amount thereof, or reduce the rate or extend the time of payment of interest thereon, or reduce any premium payable upon the redemption thereof, or (ii)&nbsp;reduce the aforesaid percentage of Securities, the holders of which are required
to consent to any such supplemental indenture. The Indenture also contains provisions permitting the holders of a majority in aggregate principal amount of the Securities of all series at the time Outstanding affected thereby (all such series voting
together as a single class), to waive any past default in the performance of any of the covenants contained in the Base Indenture, or established pursuant to the Base Indenture with respect to such series, and its consequences, except a default in
the payment of the principal of or premium, if any, or interest on any Securities, including the Notes, in which case, each such affected series voting as a separate class. Any such consent or waiver by the registered holder of this Note (unless
revoked as provided in the Base Indenture) shall be conclusive and binding upon such holder and upon all future holders and owners of this Note and of any Note issued in exchange herefor or in place hereof (whether by registration of transfer or
otherwise), irrespective of whether or not any notation of such consent or waiver is made upon this Note. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No reference herein to the Indenture and no provision of this Note or of the Indenture shall
alter or impair the obligation of the Issuer, which is absolute and unconditional, to pay the principal of and premium, if any, and interest on this Note at the time and place and at the rate and in the money herein prescribed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer is subject to certain covenants contained in the Indenture with respect to, and for the benefit of the holders of, the Notes. The
Trustee shall not be obligated to monitor or confirm, on a continuing basis or otherwise, the Issuer&#146;s compliance with the covenants contained in the Indenture or with respect to reports or other certificates filed under the Indenture;<I>
provided</I>, <I>however</I>, that nothing herein shall relieve the Trustee of any obligations to monitor the Issuer&#146;s timely delivery of all reports and certificates required under Section&nbsp;5.03 of the Base Indenture and to fulfill its
obligations under Article&nbsp;VII of the Indenture. If an Event of Default as defined in the Indenture with respect to the Notes shall occur and be continuing, the principal of the Notes may be declared due and payable in the manner and with the
effect provided in the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in and subject to the provisions of the Indenture, the holder of this Note shall not have
the right to institute any proceeding with respect to the Indenture or for the appointment of a receiver or Trustee or for any other remedy thereunder, unless such holder shall have previously given the Trustee written notice of a continuing Event
of Default with respect to the Notes, the holders of not less than 25% in principal amount of the Outstanding Notes (in the case of an Event of Default described in clauses (a)(i) or (a)(ii) of Section&nbsp;6.01 of the Base Indenture, each such
series voting as a separate class, and in the case of an Event of Default described in clauses (a)(iii), (a)(iv), (a)(v) or (a)(vi) of Section&nbsp;6.01 of the Base Indenture, all affected series voting together as a single class) shall have made
written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee reasonable indemnity and the Trustee shall have failed to institute any such proceeding for 60&nbsp;days after receipt of
such notice, request and offer of indemnity and the Trustee shall not have received from the holders of a majority in principal amount of the Notes at the time Outstanding (voting as provided in Section&nbsp;6.04(b) of the Base Indenture) a
direction inconsistent with such request. The foregoing shall not apply to any suit instituted by the holder of this Note for the enforcement of any payment of principal hereof or any interest on or after the respective due dates expressed herein.
</P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in the Indenture and subject to certain limitations therein set forth, this Note
is transferable by the registered holder hereof on the Security Register of the Issuer, upon surrender of this Note for registration of transfer at the office or agency of the Issuer in the Borough of Manhattan, the City and State of New&nbsp;York
accompanied by a written instrument or instruments of transfer in form satisfactory to the Issuer or the Trustee duly executed by the registered holder hereof or his attorney duly authorized in writing, and thereupon one or more new Notes of
authorized denominations and for the same aggregate principal amount and series will be issued to the designated transferee or transferees. No service charge will be made for any such transfer, but the Issuer may require payment of a sum sufficient
to cover any tax or other governmental charge payable in relation thereto. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Prior to due presentment for registration of transfer of this
Note, the Issuer, the Trustee, any paying agent and any Security Registrar may deem and treat the registered holder hereof as the absolute owner hereof (whether or not this Note shall be overdue and notwithstanding any notice of ownership or writing
hereon made by anyone other than the Security Registrar) for the purpose of receiving payment of or on account of the principal hereof and premium, if any, and interest due hereon and for all other purposes, and neither the Issuer nor the Trustee
nor any paying agent nor any Note Registrar shall be affected by any notice to the contrary. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No recourse shall be had for the payment of
the principal of or the interest on this Note, or for any claim based hereon, or otherwise in respect hereof, or based on or in respect of the Indenture, against any incorporator, stockholder, officer or director, past, present or future, as such,
of the Issuer or of any predecessor or successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise, all such liability being, by the acceptance hereof and as
part of the consideration for the issuance hereof, expressly waived and released. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes are issuable only in registered form without
coupons in authorized denominations. As provided in the Indenture and subject to certain limitations herein and therein set forth, Notes so issued are exchangeable for a like aggregate principal amount of Notes of a different authorized
denomination, as requested by the holder surrendering the same. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">All terms used in this Note which are defined in the Indenture shall have
the meanings assigned to them in the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">THE INDENTURE AND THE NOTES INCLUDING THIS NOTE SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAW OF THE STATE OF NEW&nbsp;YORK. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification
Procedures, the Issuer has caused &#147;CUSIP&#148; numbers to be printed on the Notes as a convenience to the holders of the Notes. No representation is made as to the correctness or accuracy of such CUSIP numbers as printed on the Notes, and
reliance may be placed only on the other identification numbers printed hereon. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Unless the certificate of authentication hereon has been
executed by or on behalf of the Trustee by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purposes. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">E-14 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit F </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW&nbsp;YORK CORPORATION (&#147;<B>DTC</B>&#148;), TO
THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE&nbsp;&amp; CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS
MADE TO CEDE&nbsp;&amp; CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE&nbsp;&amp; CO., HAS AN INTEREST HEREIN. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE FORM IN ACCORDANCE WITH
THE PROVISIONS OF THE INDENTURE AND THE TERMS OF THE SECURITIES AND EXCEPT AS OTHERWISE PROVIDED IN SECTION 2.11 OF THE BASE INDENTURE, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC OR BY A NOMINEE OF DTC TO DTC OR
ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-1 </P>

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<TD VALIGN="top">Certificate No.&nbsp;1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="right">$300,000,000</TD></TR>
</TABLE> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">CUSIP No.&nbsp;571748 BK7 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ISIN
No. US571748BK77 </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Floating Rate Senior Notes due 2021 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC., a Delaware corporation (the &#147;<B>Issuer</B>&#148;, which term includes any successor
corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede&nbsp;&amp; Co., or its registered assigns, the principal sum of THREE HUNDRED MILLION DOLLARS ($300,000,000) (which aggregate principal
amount may from time to time be increased or decreased to such other aggregate principal amounts by adjustments made on the Schedule of Increases or Decreases in Global Security attached hereto) on December&nbsp;29, 2021 and to pay interest on said
principal sum from January&nbsp;15, 2019 or from the most recent interest payment date (each such date, an &#147;<B>Interest Payment Date</B>&#148;) to which interest has been paid or duly provided for quarterly on March&nbsp;29, June&nbsp;29,
September&nbsp;29 and December&nbsp;29 of each year commencing March&nbsp;29, 2019 at the rate of LIBOR (as defined below) plus 1.200% per annum, computed as set forth below, until the principal hereof shall have become due and payable, and on any
overdue principal and premium, if any, and (without duplication and to the extent that payment of such interest is enforceable under applicable law) on any overdue installment of interest at the same rate per annum. In the event that any date on
which interest is payable on this Note is not a Business Day, then payment of interest payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay). The
interest installment so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in the Indenture (hereafter defined), be paid to the person in whose name this Note (or one or more Predecessor Securities, as
defined in said Indenture) is registered at the close of business on the 15<SUP STYLE="font-size:85%; vertical-align:top">th</SUP> calendar day immediately preceding such Interest Payment Date. Any such interest installment not punctually paid or
duly provided for (as defined in the Indenture, the &#147;<B>Defaulted Interest</B>&#148;) shall forthwith cease to be payable to the registered holders on such regular record date, and may be paid to the person in
</P>
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whose name this Note (or one or more Predecessor Securities) is registered at the close of business on a special record date to be fixed by the Trustee for the payment of such Defaulted Interest,
which shall not be more than 15 nor less than 10 days prior to the date of the proposed payment, and not less than 10 days after the receipt by the Trustee of the notice of the proposed payment or at any time in any other lawful manner not
inconsistent with the requirements of any securities exchange on which the Notes may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture. The principal of (and premium, if any) and the
interest on this Note shall be payable at the office or agency of the Trustee maintained for that purpose in any coin or currency of the United States of America which at the time of payment is legal tender for payment of public and private debts;
<I>provided</I>, <I>however</I>, that payment of interest may be made at the option of the Issuer by check mailed to the registered holder at such address as shall appear in the Security Register. Notwithstanding the foregoing, so long as the
registered holder of this Note is Cede&nbsp;&amp; Co., the payment of the principal of (and premium, if any) and interest on this Note will be made at such place and to such account as may be designated by DTC. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The rate at which the Notes shall bear interest shall be as determined by the Calculation Agent as set forth below, subject to the maximum
interest rate permitted by New York law (as the same may be modified by United States law of general application). Interest on the Notes for any interest period shall be equal to LIBOR on the Interest Determination Date for such interest period,
plus 1.200%. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Promptly upon determination, the Calculation Agent will inform the Trustee, if the Trustee is not then serving as the
Calculation Agent, and the Issuer of the interest rate for the next interest period. Absent willful misconduct, bad faith or manifest error, the determination of the interest rate by the Calculation Agent shall be binding and conclusive on the
respective holders of the Floating Rate Notes, the Trustee and the Issuer. Upon request from any holder of Note, the Calculation Agent will provide the interest rate in effect for the Notes for the current interest period and, if it has been
determined, the interest rate to be in effect for the next interest period. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The accrued interest for any period shall be calculated by
multiplying the principal amount of a Note by an accrued interest factor. The accrued interest factor shall be computed by adding the interest factor calculated for each day in the period for which accrued interest is being calculated. The interest
factor (expressed as a decimal rounded upwards if necessary) shall be computed by </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-3 </P>

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dividing the interest rate (expressed as a decimal rounded upwards if necessary) applicable to such date by 360. All percentages resulting from any calculation of the interest rate with respect
to the Notes will be rounded, if necessary, to the nearest <FONT STYLE="white-space:nowrap">one-hundred</FONT> thousandth of a percentage point, with five <FONT STYLE="white-space:nowrap">one-millionths</FONT> of a percentage point rounded upward
(e.g., 9.876545% (or .09876545) would be rounded to 9.87655% (or .0987655) and 9.876544 (or .09876544) would be rounded to 9.87654% (or .0987654)). Dollar amounts resulting from such calculation shall be rounded to the nearest cent, with <FONT
STYLE="white-space:nowrap">one-half</FONT> cent being rounded upward. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Calculation Agent</B>&#148; means The Bank of New York
Mellon, or such successor calculation agent as the Issuer appoints. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Interest Determination Date</B>&#148; means, for any
interest period, two London Business Days prior to the applicable Interest Reset Date for such interest period; provided, for the initial interest period for the Notes, the Interest Determination Date means January&nbsp;11, 2019. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Interest Reset Date</B>&#148; means March&nbsp;29, June&nbsp;29, September&nbsp;29 and December&nbsp;29 in each year. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>LIBOR</B>&#148; shall mean the offered rate for deposits in U.S. dollars for the three-month period which appears on Reuters Screen
LIBOR01 Page at approximately 11:00 a.m., London time; provided, for the initial interest period for the Floating Rate Notes, LIBOR shall mean an interpolated rate between the offered rates for deposits in U.S. dollars for the three-month period and
the <FONT STYLE="white-space:nowrap">two-month</FONT> period, each of which appears on Reuters Screen LIBOR01 Page at approximately 11:00 a.m., London time. If this rate does not appear on the Reuters Screen LIBOR01 Page, the Calculation Agent will
determine the interest rate on the Floating Rate Notes for the applicable Interest Reset Date on the basis of the rates at which deposits in U.S. dollars are offered by four major banks in the London interbank market selected by the Issuer at
approximately 11:00 a.m., London time, two London Banking Days prior to such Interest Reset Date to prime banks in the London interbank market for a period of three months commencing on such Interest reset Date and in principal amount equal to an
amount not less than $1,000,000 that is representative for a single transaction in such market at such time. The Calculation Agent shall request the principal London office of each such major London bank to provide a quotation of such rate. If at
least two such quotations are provided, LIBOR for such Interest Reset Date will be the average of such quotations. If fewer than two quotations are provided, LIBOR for such Interest Reset Date shall be the average of the rates
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-4 </P>

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quoted by three major banks in New York, New York selected by the Issuer at approximately 11:00 a.m., New York time, two London Banking Days prior to the such Interest Reset Date for loans in
U.S. dollars to leading banks for a period of three months commencing on such Interest Reset Date and in a principal amount equal to an amount not less than $1,000,000 that is representative for a single transaction in such market at such time. The
Calculation Agent shall request the principal New York office of each such major New York bank to provide a quotation of such rate. If fewer than three such quotations are provided, LIBOR for such Interest Reset Date shall be the same as the rate
determined on the immediately preceding Interest Reset Date. Notwithstanding the foregoing, if prior to any Interest Reset Date, the Issuer determines that LIBOR has been permanently discontinued, LIBOR has been discontinued, then the Calculation
Agent will use, at the direction of the Issuer, for each subsequent Interest Reset Date, the substitute or successor reference rate for LIBOR that has been selected by a central bank, reserve bank, monetary authority or any similar institution
(including any committee or working group thereof) and whose use is consistent with then-accepted market practice for debt obligations such as the Floating Rate Notes (the &#147;<B>Alternative Rate</B>&#148;) and may, after consultation with Issuer,
determine what business day convention to use, the definition of business day, the reference rate determination date to be used and any other relevant methodology for calculating such substitute or successor reference rate, including any adjustment
factor needed to make such Alternative Rate comparable to the LIBOR in a manner that is consistent with industry-accepted practices for the use of such Alternative Rate for debt obligations such as the Floating Rate Notes (collectively,
&#147;<B>Adjustments</B>&#148;). However, if the Issuer determines that there is no clear market consensus as to whether any rate has replaced LIBOR in customary market usage, the Issuer shall appoint in its sole discretion an independent financial
advisor to determine an appropriate Alternative Rate and any Adjustments thereon, and the decision of the independent financial advisor will be binding on the Issuer, the Calculation Agent and the holders of the Floating Rate Notes; provided, if the
Issuer determines that LIBOR has been permanently discontinued and, for any reason, an Alternative Rate has not been determined, LIBOR shall equal LIBOR for the interest period immediately preceding such Interest Reset Date. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>London Banking Day</B>&#148; means any day in which dealings in U.S. dollar deposits are transacted in the London interbank market.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;<B>Reuters Screen LIBOR01 Page</B>&#148; means the display page so designated currently so designated on the Reuters Monitor Money
Rates for the purpose of displaying London interbank offered rates of major banks (or any successor page). </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The indebtedness evidenced by this Note is, to the extent provided in the Indenture, senior
and unsecured and will rank in right of payment on parity with all other senior unsecured obligations of the Issuer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note shall not
be entitled to any benefit under the Indenture hereinafter referred to or be valid until the Certificate of Authentication hereon shall have been signed manually by or on behalf of the Trustee. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The provisions of this Note are continued on the reverse side hereof and such continued provisions shall for all purposes have the same effect
as though fully set forth at this place. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-6 </P>

</DIV></Center>


<p Style='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the Issuer has caused this instrument to be executed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated: January&nbsp;15, 2019 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="6%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="92%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="16%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="82%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Attest:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>[Signature Page to Global Note] </I></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-7 </P>

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<p Style='page-break-before:always'>
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">CERTIFICATE OF AUTHENTICATION </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This is one of the Notes of the series of Notes described in the <FONT STYLE="white-space:nowrap">within-mentioned</FONT> Indenture. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">THE BANK OF NEW YORK MELLON, as Trustee </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>
<TD WIDTH="5%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="93%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Authorized Signatory</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated:
<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;</U> </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-8 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">ASSIGNMENT FORM </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">FOR VALUE RECEIVED, the undersigned hereby </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">sells, assigns and transfers to </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Insert Social Security number or other
identifying number of assignee) </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Please print or typewrite name and address, including zip code of assignee) </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">the within Note of Marsh&nbsp;&amp; McLennan Companies, Inc. and hereby does irrevocably constitute and appoint </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Attorney to transfer said Note on the books of the <FONT STYLE="white-space:nowrap">within-named</FONT> Issuer with full power of substitution in the premises.
</P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>
<TD WIDTH="51%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="47%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Dated:
<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">&nbsp;</P></TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership
in an approved signature guarantee medallion program pursuant to Securities and Exchange Commission <FONT STYLE="white-space:nowrap">Rule&nbsp;17Ad-15.</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">NOTICE: The signature to this assignment must correspond with the name as it appears on the first page of the within Note in every particular, without
alteration or enlargement or any change whatever. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-9 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Floating Rate Senior Notes due 2021 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The initial aggregate principal amount of this Global Security is $300,000,000. The following increases or decreases in this Global Security
have been made: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">No: _____ </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:8pt" ALIGN="center">


<TR>
<TD WIDTH="24%"></TD>
<TD VALIGN="bottom"></TD>
<TD WIDTH="24%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="25%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="24%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; ">Date</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount of this</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Global Security</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Notation Explaining</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Principal Amount Recorded</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Signature of authorized</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">officer of Trustee or</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center">Depositary</P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-10 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Floating Rate Senior Notes due 2021 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Note is one of a duly authorized series of Securities (referred to in the Base Indenture (hereafter defined)), of the Issuer (herein
sometimes referred to as the &#147;<B>Notes</B>&#148;), all such Securities issued or to be issued in one or more series under and pursuant to an indenture (the &#147;<B>Base Indenture</B>&#148;), dated as of July&nbsp;15, 2011 between the Issuer
and The Bank of New York Mellon, as Trustee (the &#147;<B>Trustee</B>&#148;), as supplemented in the case of the Notes by the Eleventh Supplemental Indenture, dated as of January&nbsp;15, 2019, between the Issuer and the Trustee (the Base Indenture,
as so supplemented, the &#147;<B>Indenture</B>&#148;), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights, limitations of rights, obligations, duties and immunities thereunder of the
Trustee, the Issuer and the holders of the Notes. This series of Notes is initially limited in aggregate principal amount as specified in said Eleventh Supplemental Indenture. This series of Notes and any Additional Notes of this series shall
constitute one series for all purposes under the Indenture, including without limitation, amendments, waivers and redemptions. The terms and conditions of this series of Notes and any Additional Notes of this series (other than the issue price, the
date of issuance, the payment of interest accruing prior to the issue date of the Additional Notes and the first payment of interest following such issue date) shall be the same and shall bear the same CUSIP number. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">On or after December&nbsp;29, 2019, the Notes may be redeemed in whole at any time or in part from time to time, at the option of the Issuer.
The redemption price (the &#147;<B>Redemption Price</B>&#148;) of the Notes to be redeemed shall be equal to 100% of the principal amount of the Notes to be redeemed plus accrued and unpaid interest on the principal amount of the Notes being
redeemed to but excluding the redemption date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In case the Issuer shall desire to exercise such right to redeem all or, as the case may
be, a portion of the Notes, the Issuer shall, or shall cause the Trustee to, give notice of such redemption to holders of the Notes to be redeemed by transmitting a notice of such redemption not less than 30 days and not more than 60 days before the
date fixed for redemption to such holders. Any notice that is delivered in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the registered holder received the notice. In any case, failure duly to give
such notice to the holder of any Note designated for redemption in whole or in part, or any defect in the notice, shall not affect the validity of the proceedings for the redemption of any other Note. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-11 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Each such notice of redemption shall specify the amount of Notes to be redeemed, the date
fixed for redemption and the applicable Redemption Price at which the Notes are to be redeemed, and shall state that payment of the Redemption Price of such Notes to be redeemed will be made at the office or agency of the Issuer in the Borough of
Manhattan, the City and State of New York, upon presentation and surrender of such Notes, that interest accrued to the date fixed for redemption will be paid as specified in said notice and, that from and after said date interest will cease to
accrue; except that interest shall continue to accrue on any such Note or portion thereof with respect to which the Issuer defaults in the payment of such Redemption Price and accrued interest. If less than all the Notes are to be redeemed, the
notice to the holders of the Notes to be redeemed in whole or in part shall specify the particular Notes to be redeemed. In case any Note is to be redeemed in part only, the notice that relates to such Note shall state the portion of the principal
amount thereof to be redeemed, and shall state that on and after the redemption date, upon surrender of such security, a new Note in principal amount equal to the unredeemed portion thereof will be issued. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the Trustee is to provide notice to the holders of the Notes as described herein, for a partial or full redemption, the Issuer shall give
the Trustee at least 45 days&#146; notice in advance of the date fixed for redemption as to the aggregate principal amount of Notes to be redeemed, and thereupon, in the case of a partial redemption, the Notes to be redeemed will be selected in
accordance with the procedures of the Depositary in a manner that provides for the selection of a portion or portions (equal to two thousand U.S. dollars ($2,000) or integral multiples of $1,000 in excess thereof) of the principal amount of such
Notes of a denomination larger than $2,000. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer may, if and whenever it shall so elect, by delivery of instructions signed on its
behalf by its President or any Vice President, instruct the Trustee or any paying agent to call all or any part of the Notes for redemption and to give notice of redemption in the manner set forth in this Note, such notice to be in the name of the
Issuer or its own name as the Trustee or such paying agent may deem advisable. In any case in which notice of redemption is to be given by the Trustee or any such paying agent, the Issuer shall deliver or cause to be delivered to, or permit to
remain with, the Trustee or such paying agent, as the case may be, such Security Register, transfer books or other records, or suitable copies or extracts therefrom, sufficient to enable the Trustee or such paying agent to give any notice by mail
that may be required under the provisions stated herein. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-12 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Subject to Section&nbsp;2.11 of the Base Indenture, the Issuer shall not be required
(i)&nbsp;to issue, register the transfer of or exchange any Notes during a period beginning at the opening of business 15 days before the day of the delivery of a notice of redemption of the Notes selected for redemption and ending at the close of
business on the day of such delivery, or (ii)&nbsp;to register the transfer of or exchange any Notes so selected for redemption in whole or in part, except the unredeemed portion of any such Notes being redeemed in part. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the giving of notice of redemption shall have been completed as above provided, the Notes or portions of the Notes to be redeemed specified
in such notice shall become due and payable on the date and at the place stated in such notice at the applicable Redemption Price, and interest on such Notes shall cease to accrue on and after the date fixed for redemption, unless the Issuer shall
default in the payment of such Redemption Price and accrued interest. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If, (A)&nbsp;the Issuer&#146;s pending acquisition of Jardine Lloyd
Thomson Group plc (the &#147;<B>Acquisition</B>&#148;) is not completed by the parties to that certain Cooperation Agreement, dated as of September&nbsp;18, 2018, by and among the Issuer, MMC Treasury Holdings (UK) Limited, a wholly-owned subsidiary
of the Issuer, and Jardine Lloyd Thomson Group plc (the &#147;<B>Cooperation Agreement</B>&#148;), on or prior to December&nbsp;31, 2019, (B) the Cooperation Agreement is terminated or (C)&nbsp;the Issuer notifies the Trustee that it will not pursue
the consummation of the Acquisition (each, a &#147;<B>Special Mandatory Redemption Event</B>&#148;), then the Issuer shall redeem all of the Notes on the Special Mandatory Redemption Date at a special mandatory redemption price equal to 101% of the
aggregate principal amount of the Special Mandatory Redemption Notes to be redeemed, plus accrued and unpaid interest from and including the date of initial issuance, or the most recent date to which interest has been paid, whichever is later, to
but not including the Special Mandatory Redemption Date (the &#147;<B>Special Mandatory Redemption Price</B>&#148;). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Upon the occurrence
of a Special Mandatory Redemption Event, promptly, but in no event more than five Business Days, following such Special Mandatory Redemption Event, the Issuer shall deliver notice to the Trustee of such special mandatory redemption and the date upon
which such Special Mandatory Redemption Notes will be redeemed, which shall be no later than the third Business Day following the date of such notice (the &#147;<B>Special Mandatory Redemption Date</B>&#148;), and a notice to registered holders of
the Notes that such Notes shall be redeemed and specifying the Special Mandatory Redemption Date and such other information as required, to the extent applicable, by the Base Indenture (the &#147;<B>Special Mandatory Redemption Notice</B>&#148;),
which shall be </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-13 </P>

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delivered in the name and at the expense of the Issuer. The Trustee shall promptly mail or electronically deliver the Special Mandatory Redemption Notice, according to the procedures of The
Depository Trust Company, to each registered holder of Notes to be redeemed at such holder&#146;s registered address. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If funds sufficient
to pay the Special Mandatory Redemption Price of all of the Notes to be redeemed on the Special Mandatory Redemption Date are deposited with a Paying Agent or the Trustee on or before such Special Mandatory Redemption Date, then on and after such
Special Mandatory Redemption Date, the Notes shall cease to bear interest and, other than the right to receive the Special Mandatory Redemption Price, all rights under the Notes shall terminate. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Indenture contains provisions permitting the Issuer and the Trustee, with the consent of the holders of not less than a majority in
aggregate principal amount of the Securities of all of the series at the time Outstanding affected thereby (all such series voting together as a single class), as defined in the Indenture, to execute supplemental indentures for the purpose of adding
any provisions to or changing in any manner or eliminating any of the provisions of the Base Indenture or of any supplemental indenture or of modifying in any manner the rights of the holders of the Notes; <I>provided, however,</I> that no such
supplemental indenture shall, without the consent of the holders of each Security then Outstanding and affected thereby (i)&nbsp;extend the fixed maturity of any Securities, including the Notes, or reduce the principal amount thereof, or reduce the
rate or extend the time of payment of interest thereon, or reduce any premium payable upon the redemption thereof, or (ii)&nbsp;reduce the aforesaid percentage of Securities, the holders of which are required to consent to any such supplemental
indenture. The Indenture also contains provisions permitting the holders of a majority in aggregate principal amount of the Securities of all series at the time Outstanding affected thereby (all such series voting together as a single class), to
waive any past default in the performance of any of the covenants contained in the Base Indenture, or established pursuant to the Base Indenture with respect to such series, and its consequences, except a default in the payment of the principal of
or premium, if any, or interest on any Securities, including the Notes, in which case, each such affected series voting as a separate class. Any such consent or waiver by the registered holder of this Note (unless revoked as provided in the Base
Indenture) shall be conclusive and binding upon such holder and upon all future holders and owners of this Note and of any Note issued in exchange herefor or in place hereof (whether by registration of transfer or otherwise), irrespective of whether
or not any notation of such consent or waiver is made upon this Note. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-14 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No reference herein to the Indenture and no provision of this Note or of the Indenture shall
alter or impair the obligation of the Issuer, which is absolute and unconditional, to pay the principal of and premium, if any, and interest on this Note at the time and place and at the rate and in the money herein prescribed. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Issuer is subject to certain covenants contained in the Indenture with respect to, and for the benefit of the holders of, the Notes. The
Trustee shall not be obligated to monitor or confirm, on a continuing basis or otherwise, the Issuer&#146;s compliance with the covenants contained in the Indenture or with respect to reports or other certificates filed under the Indenture;<I>
provided</I>, <I>however</I>, that nothing herein shall relieve the Trustee of any obligations to monitor the Issuer&#146;s timely delivery of all reports and certificates required under Section&nbsp;5.03 of the Base Indenture and to fulfill its
obligations under Article&nbsp;VII of the Indenture. If an Event of Default as defined in the Indenture with respect to the Notes shall occur and be continuing, the principal of the Notes may be declared due and payable in the manner and with the
effect provided in the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in and subject to the provisions of the Indenture, the holder of this Note shall not have
the right to institute any proceeding with respect to the Indenture or for the appointment of a receiver or Trustee or for any other remedy thereunder, unless such holder shall have previously given the Trustee written notice of a continuing Event
of Default with respect to the Notes, the holders of not less than 25% in principal amount of the Outstanding Notes (in the case of an Event of Default described in clauses (a)(i) or (a)(ii) of Section&nbsp;6.01 of the Base Indenture, each such
series voting as a separate class, and in the case of an Event of Default described in clauses (a)(iii), (a)(iv), (a)(v) or (a)(vi) of Section&nbsp;6.01 of the Base Indenture, all affected series voting together as a single class) shall have made
written request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee reasonable indemnity and the Trustee shall have failed to institute any such proceeding for 60&nbsp;days after receipt of
such notice, request and offer of indemnity and the Trustee shall not have received from the holders of a majority in principal amount of the Notes at the time Outstanding (voting as provided in Section&nbsp;6.04(b) of the Base Indenture) a
direction inconsistent with such request. The foregoing shall not apply to any suit instituted by the holder of this Note for the enforcement of any payment of principal hereof or any interest on or after the respective due dates expressed herein.
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-15 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As provided in the Indenture and subject to certain limitations therein set forth, this Note
is transferable by the registered holder hereof on the Security Register of the Issuer, upon surrender of this Note for registration of transfer at the office or agency of the Issuer in the Borough of Manhattan, the City and State of New&nbsp;York
accompanied by a written instrument or instruments of transfer in form satisfactory to the Issuer or the Trustee duly executed by the registered holder hereof or his attorney duly authorized in writing, and thereupon one or more new Notes of
authorized denominations and for the same aggregate principal amount and series will be issued to the designated transferee or transferees. No service charge will be made for any such transfer, but the Issuer may require payment of a sum sufficient
to cover any tax or other governmental charge payable in relation thereto. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Prior to due presentment for registration of transfer of this
Note, the Issuer, the Trustee, any paying agent and any Security Registrar may deem and treat the registered holder hereof as the absolute owner hereof (whether or not this Note shall be overdue and notwithstanding any notice of ownership or writing
hereon made by anyone other than the Security Registrar) for the purpose of receiving payment of or on account of the principal hereof and premium, if any, and interest due hereon and for all other purposes, and neither the Issuer nor the Trustee
nor any paying agent nor any Note Registrar shall be affected by any notice to the contrary. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No recourse shall be had for the payment of
the principal of or the interest on this Note, or for any claim based hereon, or otherwise in respect hereof, or based on or in respect of the Indenture, against any incorporator, stockholder, officer or director, past, present or future, as such,
of the Issuer or of any predecessor or successor corporation, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise, all such liability being, by the acceptance hereof and as
part of the consideration for the issuance hereof, expressly waived and released. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Notes are issuable only in registered form without
coupons in authorized denominations. As provided in the Indenture and subject to certain limitations herein and therein set forth, Notes so issued are exchangeable for a like aggregate principal amount of Notes of a different authorized
denomination, as requested by the holder surrendering the same. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">All terms used in this Note which are defined in the Indenture shall have
the meanings assigned to them in the Indenture. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">THE INDENTURE AND THE NOTES INCLUDING THIS NOTE SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAW OF THE STATE OF NEW&nbsp;YORK. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-16 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification
Procedures, the Issuer has caused &#147;CUSIP&#148; numbers to be printed on the Notes as a convenience to the holders of the Notes. No representation is made as to the correctness or accuracy of such CUSIP numbers as printed on the Notes, and
reliance may be placed only on the other identification numbers printed hereon. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Unless the certificate of authentication hereon has been
executed by or on behalf of the Trustee by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purposes. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">F-17 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 4.8 </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>EXECUTION VERSION </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">CALCULATION AGENCY AGREEMENT </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">BETWEEN </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MARSH&nbsp;&amp; MCLENNAN
COMPANIES, INC. AND </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">THE BANK OF NEW YORK MELLON </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">FLOATING RATE SENIOR NOTES DUE 2021 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">THIS AGREEMENT is made as of January&nbsp;15, 2019, between MARSH&nbsp;&amp; MCLENNAN COMPANIES, INC., a Delaware corporation, (the
&#147;Corporation&#148;) whose principal executive office is at 1166 Avenue of the Americas, New York, New York 10036-2774), and THE BANK OF NEW YORK MELLON, a New York banking corporation, whose principal corporate trust office is at 240 Greenwich
Street, Floor 7W, New York, New York 10286 (together with any successor, the &#147;Calculation Agent&#148;). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><U>W</U> <U>I</U> <U>T</U>
<U>N</U> <U>E</U> <U>S</U> <U>S</U> <U>E</U> <U>T</U> <U>H</U> : </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">WHEREAS, the Corporation proposes to issue and sell certain of its
securities designated as Floating Rate Senior Notes due 2021 (the &#147;Floating Rate Notes&#148;). The Floating Rate Notes are to be issued under an Indenture (the &#147;Base Indenture&#148;) dated as of June&nbsp;15, 2011, between the Corporation
and The Bank of New York Mellon, as Trustee (the &#147;Trustee&#148;), as amended and supplemented by the Eleventh Supplemental Indenture (the &#147;Supplemental Indenture&#148;) to be dated on or about January&nbsp;15, 2019, between the Corporation
and the Trustee. The Base Indenture and the Supplemental Indenture, each as amended and supplemented, are together referred to herein as the &#147;Indenture.&#148; Terms used but not defined herein shall have the meanings assigned to them in the
Prospectus, dated July&nbsp;30, 2018, and the Prospectus Supplement thereto, dated January&nbsp;8, 2019, relating to the Floating Rate Notes. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">For the purpose of appointing an agent to calculate the interest rate based on LIBOR (the &#147;Base Rates&#148;) on the Floating Rate Notes
bearing interest at a rate calculated with reference to such Base Rates, the Corporation and The Bank of New York Mellon agree as follows: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">1. Upon the terms and subject to the conditions contained herein, the Corporation hereby appoints the Calculation Agent as its Calculation
Agent and Calculation Agent hereby accepts such appointment as the Corporation&#146;s agent for the purpose of calculating the interest rates on the Floating Rate Notes in the manner and at the times provided in the Floating Rate Notes, the
Prospectus Supplement and the related free writing prospectuses. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">2. The Calculation Agent shall exercise due care to determine the
interest rates on the Floating Rate Notes and shall communicate the same to the Corporation, the Trustee, The Depository Trust Company and any paying agent identified to it in writing as soon as practicable after each determination. The Calculation
Agent will, upon the request of the holder of any Floating Rate Note, provide the interest rate then in effect with respect to such Floating Rate Note and, if determined, the interest rate with respect to such Floating Rate Note which will become
effective on the next Interest Reset Date. No amendment to the provisions of the Floating Rate Notes relating to the duties or obligations of the Calculation Agent hereunder may become effective without the prior written consent of the Calculation
Agent, which consent shall not be unreasonably withheld. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">3. If the Corporation determines that LIBOR has been permanently discontinued, the
Calculation Agent will use, as directed by the Corporation, as a substitute for LIBOR (the &#147;Alternative Rate&#148;) and for each future interest rate determination date, the alternative reference rate selected by the central bank, reserve bank,
monetary authority or any similar institution (including any committee or working group thereof) that is consistent with accepted market practice. As part of such substitution, the Calculation Agent will, as directed by the Corporation, make such
adjustments (&#147;Adjustments&#148;) to the Alternative Rate or the spread thereon, as well as the business day convention, interest determination dates and related provisions and definitions, in each case that are consistent with accepted market
practice for the use of such Alternative Rate for debt obligations such as the Floating Rate Notes; provided, however, that if the Corporation determines that there is no alternative reference rate selected by the central bank, reserve bank,
monetary authority or any similar institution (including any committee or working group thereof) that is consistent with accepted market practice regarding a substitute for LIBOR, the Corporation will appoint in their sole discretion an independent
financial advisor (the &#147;IFA&#148;) to determine the Alternative Rate and make any Adjustments thereon, and whose determinations will be binding on the Corporation, the Trustee and the holders of the Floating Rate Notes. If, however, the
Corporation determines that LIBOR has been discontinued, but for any reason an Alternative Rate has not been determined, LIBOR will be equal to the rate of LIBOR for the current interest period. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">4. The Calculation Agent accepts its obligations set forth herein, upon the terms and subject to the conditions hereof, including the
following, to all of which the Corporation agrees: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) The Calculation Agent shall be entitled to such compensation as may
be agreed upon with the Corporation for all services rendered by the Calculation Agent, and the Corporation promises to pay such compensation and to reimburse the Calculation Agent for the reasonable <FONT STYLE="white-space:nowrap"><FONT
STYLE="white-space:nowrap">out-of-pocket</FONT></FONT> expenses (including reasonable <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">out-of-pocket</FONT></FONT> attorneys&#146; and other professionals&#146; fees and expenses)
incurred by it in connection with the services rendered by it hereunder except to the extent any such expense may arise from its gross negligence, willful misconduct or bad faith and upon receipt of such invoices as the Corporation shall reasonably
require. The Corporation also agrees to indemnify the Calculation Agent for, and to hold it harmless against, any and all loss, liability, damage, claim or expense (including the costs and expenses of defending against any claim (regardless of who
asserts such claim) of liability) incurred by the Calculation Agent that arises out of or in connection with its accepting appointment as, or acting as, Calculation Agent hereunder, except such as may result from the gross negligence, willful
misconduct or bad faith of the Calculation Agent or any of its agents or employees. The Calculation Agent shall incur no liability and shall be indemnified and held harmless by the Corporation for, or in respect of, any actions taken,
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">- 2 - </P>

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omitted to be taken or suffered to be taken in good faith by the Calculation Agent in reliance upon (i)&nbsp;the written opinion or advice of legal or other professional advisors satisfactory to
it or (ii)&nbsp;written instructions from the Corporation. The Calculation Agent shall not be liable for any error resulting from the use of or reliance on a source of information used in good faith and with due care to calculate any interest rate
hereunder. The provisions of this section shall survive the termination of this Agreement. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) In acting under this
Agreement and in connection with the Floating Rate Notes, the Calculation Agent is acting solely as agent of the Corporation and does not assume any obligations to or relationship of agency or trust for or with any of the owners or holders of the
Floating Rate Notes. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) The Calculation Agent shall be protected and shall incur no liability for or in respect of any
action taken or omitted to be taken or anything suffered by it in reliance upon the terms of the Floating Rate Notes, any notice, direction, certificate, affidavit, statement or other paper, document or communication reasonably believed by it to be
genuine and to have been approved or signed by the proper party or parties. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) The Calculation Agent, its officers,
directors, employees and shareholders may become the owners of, or acquire any interest in, any Floating Rate Notes, with the same rights that it or they would have if it were not the Calculation Agent, and may engage or be interested in any
financial or other transaction with the Corporation as freely as if it were not the Calculation Agent. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e) Neither the
Calculation Agent nor its officers, directors, employees, agents or attorneys shall be liable to the Corporation for any act or omission hereunder, or for any error of judgment made in good faith by it or them, except in the case of its or their
gross negligence, willful misconduct or bad faith. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f) The Calculation Agent may consult with counsel of its selection and
the advice of such counsel or any opinion of counsel shall be full and complete authorization and protection in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance thereon. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g) The Calculation Agent shall be obligated to perform such duties and only such duties as are herein specifically set forth,
and no implied duties or obligations shall be read into this Agreement against the Calculation Agent. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(h) Unless herein
otherwise specifically provided, any order, certificate, notice, request, direction or other communication from the Corporation made or given by it under any provision of this Agreement shall be sufficient if signed by any officer of the
Corporation. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">- 3 - </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) The Calculation Agent may perform any duties hereunder either directly
or by or through agents or attorneys, and the Calculation Agent shall not be responsible for any misconduct or negligence on the part of any agent or attorney appointed with due care by it hereunder. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(j) In no event shall the Calculation Agent be responsible or liable for special, indirect, or consequential loss or damage of
any kind whatsoever the (including, but not limited to, loss of profit) irrespective of whether the Calculation Agent has been advised of the likelihood of such loss or damage and regardless of the form of action. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(k) In no event shall the Calculation Agent be responsible or liable for any failure or delay in the performance of its
obligations under this Agreement arising out of or caused by, directly or indirectly, forces beyond its reasonable control, including without limitation strikes, work stoppages, accidents, acts of war or terrorism, civil or military disturbances,
nuclear or natural catastrophes or acts of God, and interruptions, loss or malfunctions of utilities, communications or computer (software or hardware) services. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">5. (a) The Calculation Agent may at any time resign as Calculation Agent by giving written notice to the Corporation of such intention on its
part, specifying the date on which its desired resignation shall become effective; <U>provided</U>, <U>however</U>, that such date shall never be earlier than 30 days after the receipt of such notice by the Corporation, unless the Corporation agrees
to accept less notice. The Calculation Agent may be removed at any time by the filing with it of any instrument in writing signed on behalf of the Corporation and specifying such removal and the date when it is intended to become effective. Such
resignation or removal shall take effect upon the date of the appointment by the Corporation, as hereinafter provided, of a successor Calculation Agent. If within 30 days after notice of resignation or removal has been given, a successor Calculation
Agent has not been appointed, the Calculation Agent may, at the expense of the Corporation, petition a court of competent jurisdiction to appoint a successor Calculation Agent. A successor Calculation Agent shall be appointed by the Corporation by
an instrument in writing signed on behalf of the Corporation and the successor Calculation Agent. Upon the appointment of a successor Calculation Agent and acceptance by it of such appointment, the Calculation Agent so succeeded shall cease to be
such Calculation Agent hereunder. Upon its resignation or removal, the Calculation Agent shall be entitled to the payment by the Corporation of its compensation, if any is owed to it, for services rendered hereunder and to the reimbursement of all
reasonable <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">out-of-pocket</FONT></FONT> expenses incurred in connection with the services rendered by it hereunder and to the payment of all other amounts owed to it hereunder. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">- 4 - </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) Any successor Calculation Agent appointed hereunder shall execute and deliver to its
predecessor and to the Corporation an instrument accepting such appointment hereunder, and thereupon such successor Calculation Agent, without any further act, deed or conveyance, shall become vested with all the authority, rights, powers, trusts,
immunities, duties and obligations of such predecessor with like effect as if originally named as such Calculation Agent hereunder, and such predecessor, upon payment of its charges and disbursements then unpaid, shall thereupon become obliged to
transfer and deliver, and such successor Calculation Agent shall be entitled to receive, copies of any relevant records maintained by such predecessor Calculation Agent. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) Any corporation into which the Calculation Agent may be merged, or any corporation with which the Calculation Agent may be consolidated,
or any corporation resulting from any merger or consolidation or to which the Calculation Agent shall sell or otherwise transfer all or substantially all of its corporate trust assets or business shall, to the extent permitted by applicable law, be
the successor Calculation Agent under this Agreement without the execution or filing of any paper or any further act on the part of any of the parties hereto. Notice of any such merger, consolidation or sale shall forthwith be given to the
Corporation and the Trustee. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">6. Any notice required to be given hereunder shall be delivered in person, sent by letter or telecopy or
communicated by telephone (subject, in the case of communication by telephone, to confirmation dispatched within twenty-four hours by letter or by telecopy): </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">&nbsp;&nbsp;&nbsp;&nbsp;in the case of the Corporation, 1166 Avenue of the Americas, New York, New York
10036-2774, telephone: <FONT STYLE="white-space:nowrap">(212)&nbsp;345-5000;</FONT> telecopy: <FONT STYLE="white-space:nowrap">(212)&nbsp;948-4312,</FONT> Attention: Ferdinand G. Jahnel, </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">&nbsp;&nbsp;&nbsp;&nbsp;in the case of The Bank of New York Mellon, to Corporate Trust Administration, 240
Greenwich Street, New York, New York 10286, telephone: (212) <FONT STYLE="white-space:nowrap">815-5283,</FONT> telecopy: (212) <FONT STYLE="white-space:nowrap">815-5595</FONT> and, </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">&nbsp;&nbsp;&nbsp;&nbsp;in the case of The Depository Trust Company, to Manager Announcements, Dividend
Department, The Depository Trust Company, 55 Water Street <FONT STYLE="white-space:nowrap">-</FONT> 25th Floor, New York, New York 10041, telecopy: (212) <FONT STYLE="white-space:nowrap">855-4555</FONT> or (212)
<FONT STYLE="white-space:nowrap">709-1263,</FONT> </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="1%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">&nbsp;&nbsp;&nbsp;&nbsp;or to any other address of which any party shall have notified the others in writing as
herein provided. </P></TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Any notice hereunder given by telephone, telecopy or letter shall be deemed to be received when in the ordinary course
of transmission or post, as the case may be, it would be received. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">7. The Calculation Agent agrees to accept and act upon instructions or
directions pursuant to this Agreement sent by unsecured <FONT STYLE="white-space:nowrap">e-mail,</FONT> pdf, facsimile transmission or other similar unsecured electronic methods, provided, however, that the Calculation Agent shall have received an
incumbency certificate listing persons designated to give such instructions or directions and containing specimen signatures of such designated persons, which such incumbency certificate shall be amended and
</P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">- 5 - </P>

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replaced whenever a person is to be added or deleted from the listing. If the Corporation elects to give the Calculation Agent <FONT STYLE="white-space:nowrap">e-mail</FONT> or facsimile
instructions (or instructions by a similar electronic method) and the Calculation Agent in its discretion elects to act upon such instructions, the Calculation Agent&#146;s reasonable understanding of such instructions shall be deemed controlling.
The Calculation Agent shall not be liable for any losses, costs or expenses arising directly or indirectly from the Calculation Agent&#146;s reasonable reliance upon and compliance with such instructions prior to receipt of a subsequent written
instruction, notwithstanding such instructions conflict or are inconsistent with such subsequent written instruction. The Corporation agrees to assume all risks arising out of the use of such electronic methods to submit instructions and directions
to the Calculation Agent including without limitation the risk of the Calculation Agent acting on unauthorized instructions, and the risk of interception and misuse by third parties. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">8. This Agreement and the Calculation Agent&#146;s appointment as Calculation Agent hereunder shall be construed and enforced in accordance
with the laws of the State of New York applicable to agreements made and to be performed entirely within such state, and without regard to conflicts of laws principles, and shall inure to the benefit of, and the obligations created hereby shall be
binding upon, the successors and assigns of each of the parties hereto. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">9. EACH OF THE CORPORATION AND THE CALCULATION AGENT HEREBY
IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTION CONTEMPLATED HEREBY. Any legal action or proceeding
with respect to this Agreement shall be brought exclusively in the courts of the State of New York located in the City of New York, Borough of Manhattan, or of the United States of America for the Southern District of New York in the Borough of
Manhattan and, by execution and delivery of this Agreement, each party hereto hereby accepts for itself and in respect of its property, generally and unconditionally, the jurisdiction of the aforesaid courts. The parties hereto hereby irrevocably
waive any objection, including any objection to the laying of venue or based on the grounds of forum non conveniens, that any of them may now or hereafter have to the bringing of any such action or proceeding in such jurisdiction. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">10. In order to comply with laws, rules, regulations and executive orders in effect from time to time applicable to banking institutions,
including those relating to the funding of terrorist activities and money laundering and the Customer Identification Program (&#147;CIP&#148;) requirements under the USA PATRIOT Act and its implementing regulations, pursuant to which the Calculation
Agent must obtain, verify and record information that allows the Calculation Agent to identify customers (&#147;Applicable Law&#148;), the Calculation Agent is required to obtain, verify and record certain information relating to individuals and
entities which maintain a business relationship with the Calculation Agent. Accordingly, the Corporation agrees to provide to the Calculation Agent upon its request from time to time such identifying information and documentation as may be available
for such party in order to enable the Calculation Agent to comply with Applicable Law, including, but not limited to, information as to name, physical address, tax identification number and other information that will help the Calculation Agent to
identify and verify such Corporation such as organizational </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">- 6 - </P>

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documents, certificates of good standing, licenses to do business or other pertinent identifying information. The Corporation understands and agrees that the Calculation Agent cannot determine
the interest rates on the Floating Rate Notes unless and until the Calculation Agent verifies the identities of the Corporation in accordance with its CIP. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">11. The Bank of New York Mellon Corporation is a global financial organization that provides services to clients through its affiliates and
subsidiaries in multiple jurisdictions (the &#147;BNY Mellon Group&#148;). The BNY Mellon Group may centralize functions including audit, accounting, risk, legal, compliance, sales, administration, product communication, relationship management,
storage, compilation and analysis of customer-related data, and other functions (the &#147;Centralized Functions&#148;) in one or more affiliates, subsidiaries and third-party service providers. Notwithstanding anything contained elsewhere in this
Agreement, Corporation consents to the disclosure of and authorizes BNY Mellon to disclose information regarding Corporation to the BNY Mellon Group and to its third-party service providers who are subject to confidentiality obligations with respect
to such information, in connection with the Centralized Functions. In addition, the BNY Mellon Group may aggregate Corporation data with other data collected and/or calculated by the BNY Mellon Group and the BNY Mellon Group will own all such
aggregated data, provided that the BNY Mellon Group shall not distribute the aggregated data in a format that identifies Corporation or Corporation&#146;s data with Corporation. In addition, BNY Mellon may store the names and business addresses of
Corporation&#146;s employees on the systems or in the records of the BNY Mellon Group or its service providers for purposes of the Centralized Functions, and Corporation consents and is authorized to consent to such storage and confirms that the
disclosure to and storage by the BNY Mellon Group of such information does not violate any relevant data protection legislation. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">12. This
Agreement may be executed by each of the parties hereto in any number of counterparts (including by means of electronic (e.g., &#147;pdf&#148; or &#147;tif&#148;) transmission), each of which counterparts, when so executed and delivered, shall be
deemed to be an original and all such counterparts shall together constitute one and the same agreement. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">13. In the event of any conflict
relating to the rights or obligations of the Calculation Agent in connection with the calculation of the interest rate on the Floating Rate Notes, the relevant terms of this Agreement shall govern such rights and obligations. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">[Signature Page Follows] </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">- 7 - </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed as of the
date first above written. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD VALIGN="top" COLSPAN="5">MARSH&nbsp;&amp; MCLENNAN COMPANIES, INC.</TD></TR>
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<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
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<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Ferdinand Jahnel</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Ferdinand Jahnel</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Vice President &amp; Treasurer</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD VALIGN="top" COLSPAN="5"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">THE BANK OF NEW YORK MELLON,</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp; as Calculation Agent</P></TD></TR>
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<TD VALIGN="top">By:</TD>
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<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Francine Kincaid</P></TD></TR>
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<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Francine Kincaid</TD></TR>
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<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Vice President</TD></TR>
</TABLE></DIV>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 5.1 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


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<TD VALIGN="top"><B>New York</B><BR> <P STYLE="margin-bottom:0pt; margin-top:0pt; font-size:10pt; font-family:Times New Roman"><B>Northern&nbsp;California</B></P>
<P STYLE="margin-bottom:0pt; margin-top:0pt; font-size:10pt; font-family:Times New Roman"><B>Washington DC</B></P> <P STYLE="margin-bottom:0pt; margin-top:0pt; font-size:10pt; font-family:Times New Roman"><B>S&atilde;o Paulo</B></P>
<P STYLE="margin-bottom:1pt; margin-top:0pt; font-size:10pt; font-family:Times New Roman"><B>London</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><B>Paris</B><BR> <P STYLE="margin-bottom:0pt; margin-top:0pt; font-size:10pt; font-family:Times New Roman"><B>Madrid</B></P> <P STYLE="margin-bottom:0pt; margin-top:0pt; font-size:10pt; font-family:Times New Roman"><B>Tokyo</B></P>
<P STYLE="margin-bottom:0pt; margin-top:0pt; font-size:10pt; font-family:Times New Roman"><B>Beijing</B></P> <P STYLE="margin-bottom:1pt; margin-top:0pt; font-size:10pt; font-family:Times New Roman"><B>Hong&nbsp;Kong</B></P></TD></TR>
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<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Davis&nbsp;Polk&nbsp;&amp;&nbsp;Wardwell&nbsp;<SMALL>LLP</SMALL></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">450 Lexington Avenue</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">New York, NY 10017</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">212&nbsp;450 4000 tel</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">212 701 5800
fax</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
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</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">January&nbsp;15, 2019 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Marsh&nbsp;&amp; McLennan Companies, Inc. </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">1166 Avenue of the
Americas </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">New York, New York 10036-2774 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Ladies and
Gentlemen: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Marsh&nbsp;&amp; McLennan Companies, Inc., a Delaware corporation (the &#147;<B>Company</B>&#148;), has filed with the Securities and Exchange
Commission a Registration Statement on Form <FONT STYLE="white-space:nowrap">S-3</FONT> (File <FONT STYLE="white-space:nowrap">No.&nbsp;333-226427)</FONT> (the &#147;<B>Registration Statement</B>&#148;) for the purpose of registering under the
Securities Act of 1933, as amended (the &#147;<B>Securities Act</B>&#148;), certain securities, including the Company&#146;s $700&nbsp;million aggregate principal amount of its 3.500% Senior Notes due 2020, $1,000&nbsp;million aggregate principal
amount of its 3.875% Senior Notes due 2024, $1,250&nbsp;million aggregate principal amount of its 4.375% Senior Notes due 2029, $500&nbsp;million aggregate principal amount of its 4.750% Senior Notes due 2039, $1,250&nbsp;million aggregate principal
amount of its 4.900% Senior Notes due 2049 and $300&nbsp;million aggregate principal amount of its Floating Rate Senior Notes due 2021 (collectively, the &#147;<B>Securities</B>&#148;). The Securities are to be issued pursuant to the provisions of
the Indenture dated as of July&nbsp;15, 2011 between the Company and The Bank of New York Mellon, as trustee (the &#147;<B>Trustee</B>&#148;), as supplemented by the Eleventh Supplemental Indenture dated as of January&nbsp;15, 2019 between the
Company and the Trustee (collectively, the &#147;<B>Indenture</B>&#148;). The Securities are to be sold pursuant to the Underwriting Agreement dated January&nbsp;8, 2019 (the &#147;<B>Underwriting Agreement</B>&#148;) among the Company and the
several underwriters named therein (the &#147;<B>Underwriters</B>&#148;). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We, as your counsel, have examined originals or copies of such documents,
corporate records, certificates of public officials and other instruments as we have deemed necessary or advisable for the purpose of rendering this opinion. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">In rendering the opinion expressed herein, we have, without independent inquiry or investigation, assumed that (i)&nbsp;all documents submitted to us as
originals are authentic and complete, (ii)&nbsp;all documents submitted to us as copies conform to authentic, complete originals, (iii)&nbsp;all signatures on all documents that we reviewed are genuine, (iv)&nbsp;all natural persons executing
documents had and have the legal capacity to do so, (v)&nbsp;all statements in certificates of public officials and officers of the Company that we reviewed were and are accurate and (vi)&nbsp;all representations made by the Company as to matters of
fact in the documents that we reviewed were and are accurate. </P>
</DIV></Center>


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<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">

<TR>
<TD WIDTH="33%"></TD>
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<TD WIDTH="33%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="32%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Marsh&nbsp;&amp; McLennan Companies, Inc.</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">2</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="right">January&nbsp;15, 2019</TD></TR></TABLE> <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P>
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Based on the foregoing, and subject to the additional assumptions and qualifications set forth below, we
advise you that, in our opinion, when the Securities have been duly executed and authenticated in accordance with the provisions of the Indenture and delivered to and paid for by the Underwriters pursuant to the Underwriting Agreement, the
Securities will constitute valid and binding obligations of the Company, enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors&#146; rights generally, concepts of reasonableness
and equitable principles of general applicability, provided that we express no opinion as to the validity, legally binding effect or enforceability of any provision that permits holders to collect any portion of stated principal amount upon
acceleration of the Debt Securities to the extent determined to constitute unearned interest. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">In addition, we have assumed that the Indenture and the
Securities (collectively, the &#147;<B>Documents</B>&#148;) are valid, binding and enforceable agreements of each party thereto (other than as expressly covered above in respect of the Company). We have also assumed that the execution, delivery and
performance by each party to each Document to which it is a party (a)&nbsp;are within its corporate powers, (b)&nbsp;do not contravene, or constitute a default under, the certificate of incorporation or bylaws or other constitutive documents of such
party, (c)&nbsp;require no action by or in respect of, or filing with, any governmental body, agency or official and (d)&nbsp;do not contravene, or constitute a default under, any provision of applicable law or regulation or any judgment,
injunction, order or decree or any agreement or other instrument binding upon such party. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We are members of the Bar of the State of New York and the
foregoing opinion is limited to the laws of the State of New York and the General Corporation Law of the State of Delaware, except that we express no opinion as to any law, rule or regulation that is applicable to the Company, the Documents or such
transactions solely because such law, rule or regulation is part of a regulatory regime applicable to any party to any of the Documents or any of its affiliates due to the specific assets or business of such party or such affiliate. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We hereby consent to the filing of this opinion as an exhibit to a report on Form <FONT STYLE="white-space:nowrap">8-K</FONT> to be filed by the Company on
the date hereof and its incorporation by reference into the Registration Statement and further consent to the reference to our name under the caption &#147;Legal Matters&#148; in the prospectus supplement which is a part of the Registration
Statement. In giving this consent, we do not admit that we are in the category of persons whose consent is required under Section&nbsp;7 of the Securities Act. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Very truly yours, </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">/s/ Davis Polk&nbsp;&amp; Wardwell LLP </P>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
