<SEC-DOCUMENT>0001193125-18-231516.txt : 20180730
<SEC-HEADER>0001193125-18-231516.hdr.sgml : 20180730
<ACCEPTANCE-DATETIME>20180730163059
ACCESSION NUMBER:		0001193125-18-231516
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20180730
DATE AS OF CHANGE:		20180730
EFFECTIVENESS DATE:		20180730

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:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-226431
		FILM NUMBER:		18978008

	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>S-8
<SEQUENCE>1
<FILENAME>d577189ds8.htm
<DESCRIPTION>FORM S-8
<TEXT>
<HTML><HEAD>
<TITLE>Form S-8</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>As filed with the Securities and Exchange Commission on July&nbsp;30, 2018 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Registration
<FONT STYLE="white-space:nowrap">No.&nbsp;333-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT> </B></P> <P STYLE="font-size:2pt;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:4pt; margin-bottom:0pt; font-size:16pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:16pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES
AND EXCHANGE COMMISSION </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman" ALIGN="center"><B>WASHINGTON, D.C. 20549 </B></P> <P STYLE="font-size:3pt;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:4pt; margin-bottom:0pt; font-size:16pt; font-family:Times New Roman" ALIGN="center"><B>FORM <FONT
STYLE="white-space:nowrap">S-8</FONT> </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman" ALIGN="center"><B>REGISTRATION STATEMENT </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman" ALIGN="center"><B><I>UNDER </I></B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:11pt; font-family:Times New Roman" ALIGN="center"><B><I>THE
SECURITIES ACT OF 1933 </I></B></P> <P STYLE="font-size:3pt;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:4pt; margin-bottom:0pt; font-size:20pt; 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:9pt; font-family:Times New Roman" ALIGN="center"><B>(Exact Name of Registrant as Specified in Its Charter) </B></P> <P STYLE="font-size:4pt;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="font-size:4pt;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:7pt" ALIGN="center">


<TR>
<TD WIDTH="50%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="48%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:9pt">
<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">36-2668272</FONT></B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:7pt">
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(State or Other Jurisdiction of</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Incorporation or Organization)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(I.R.S. Employer</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Identification No.)</B></P></TD></TR>
</TABLE> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B>1166 Avenue of the Americas </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B>New York, New York 10036-2774 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B>(212) <FONT STYLE="white-space:nowrap">345-5000</FONT> </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(Address, including zip code, and telephone number, including area code, of Registrant&#146;s principal executive offices) </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B>MARSH&nbsp;&amp; McLENNAN COMPANIES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B>1999 EMPLOYEE STOCK PURCHASE PLAN </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(Full Title of the Plan) </B></P>
<P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B>Katherine J. Brennan </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:9pt; 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:9pt; font-family:Times New Roman" ALIGN="center"><B>1166 Avenue of the Americas </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B>New York, New York 10036-2774 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(Name and Address of Agent for Service) </B></P>
<P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B>(212) <FONT STYLE="white-space:nowrap">345-5000</FONT> </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(Telephone Number, Including Area Code, of Agent for Service) </B></P>
<P STYLE="font-size:4pt;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:4pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a <FONT STYLE="white-space:nowrap">non-accelerated</FONT>
filer, a smaller reporting company or an emerging growth company. See the definitions of &#147;large accelerated filer,&#148; &#147;accelerated filer,&#148; &#147;smaller reporting company&#148; and &#147;emerging growth company&#148; in Rule <FONT
STYLE="white-space:nowrap">12b-2</FONT> of the Exchange Act. </P> <P STYLE="font-size:4pt;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:9pt" ALIGN="center">


<TR>
<TD WIDTH="15%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="63%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="18%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="1%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:9pt">
<TD VALIGN="bottom">Large&nbsp;accelerated&nbsp;filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9746;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Accelerated&nbsp;filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:9pt">
<TD VALIGN="bottom">Non-accelerated filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;&nbsp;&nbsp;(Do not check if a smaller reporting company)</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Smaller&nbsp;reporting&nbsp;company</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:9pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Emerging&nbsp;Growth&nbsp;Company</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;</TD></TR>
</TABLE> <P STYLE="margin-top:3pt; margin-bottom:0pt; font-size:9pt; 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;7(a)(2)(B) of the Securities Act.&nbsp;&nbsp;&#9744; </P> <P STYLE="font-size:4pt;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:4pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B>CALCULATION OF
REGISTRATION FEE </B></P> <P STYLE="font-size:4pt;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:7pt" ALIGN="center">


<TR>
<TD WIDTH="44%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="13%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="13%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="13%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="13%"></TD></TR>


<TR STYLE="font-size:1px; ">
<TD COLSPAN="9" VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:7pt">
<TD VALIGN="bottom" ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Title of Securities</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>to be Registered</B></P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Amount</B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>to be</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Registered(1)</B></P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Proposed</B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Maximum</B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Offering
Price</B></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Per Share(2)</B></P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Proposed</B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Maximum Aggregate</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Offering&nbsp;Price(2)</B></P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Amount of</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Registration Fee(3)</B></P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-TOP: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">Common Stock, $1.00 par value</P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">4,750,000</TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">$85.43</TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">$405,792,500</TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">$50,521.17</TD></TR>
<TR STYLE="font-size:1px; ">
<TD COLSPAN="9" VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD></TR>
<TR STYLE="font-size:1px; ">
<TD COLSPAN="9" VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD></TR>
</TABLE>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:9pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(1)</TD>
<TD ALIGN="left" VALIGN="top">This Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> (this &#147;Registration Statement&#148;) covers shares of Common Stock, par value $1.00 per share (&#147;Common Stock&#148;) of
Marsh&nbsp;&amp; McLennan Companies, Inc. (the &#147;Company&#148; or the &#147;Registrant&#148;) issuable pursuant to the Company&#146;s 1999 Employee Stock Purchase Plan (the &#147;Plan&#148;), and any additional shares of Common Stock that become
issuable under the Plan by reason of any stock dividend, stock split, or other similar transaction pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the &#147;Securities Act&#148;). </TD></TR></TABLE>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:9pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(2)</TD>
<TD ALIGN="left" VALIGN="top">Estimated pursuant to Rule 457(h) and Rule 457(c) under the Securities Act, solely for the purpose of computing the registration fee, based on the average of the high and low prices reported for a share of Common Stock
on the New York Stock Exchange on July 26, 2018. </TD></TR></TABLE>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:9pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(3)</TD>
<TD ALIGN="left" VALIGN="top">Rounded up to the nearest penny. </TD></TR></TABLE> <P STYLE="font-size:6pt;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='page-break-before:always'>
<HR  SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>EXPLANATORY NOTE </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">This Registration Statement has been prepared and filed pursuant to and in accordance with the requirements of General Instruction E to Form <FONT
STYLE="white-space:nowrap">S-8</FONT> for the purpose of registering an additional 4,750,000 shares of Common Stock that are issuable at any time or from time to time under the Plan.&nbsp;Pursuant to General Instruction E, the contents of the
Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> filed for the Plan with the Securities and Exchange Commission (the &#147;Commission&#148;) on July&nbsp;20, 2000 (Registration
<FONT STYLE="white-space:nowrap">No.&nbsp;333-41828),</FONT> including the documents incorporated by reference therein, are incorporated by reference into this Registration Statement, except as supplemented by the information set forth below. </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>PART 1 </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The information
specified in Item 1 and Item 2 of Part I of Form <FONT STYLE="white-space:nowrap">S-8</FONT> is omitted from this filing in accordance with the provisions of Rule 428 under the Securities Act and the introductory note to Part I of the Form <FONT
STYLE="white-space:nowrap">S-8</FONT> instructions. The document containing the information specified in Part I will be delivered to the participants in the Plan as required by Rule 428(b)(1). </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>PART II </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>INFORMATION
REQUIRED IN THE REGISTRATION STATEMENT </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;3. Incorporation of Documents by Reference </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The following documents filed are incorporated herein by reference: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) The Company&#146;s Annual Report on Form <FONT STYLE="white-space:nowrap">10-K</FONT> for the year ended December&nbsp;31, 2017, filed with
the Commission on February&nbsp;22, 2018 (File <FONT STYLE="white-space:nowrap">No.&nbsp;001-05998).</FONT> </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) The Company&#146;s current
reports on Form <FONT STYLE="white-space:nowrap">8-K</FONT> filed after the fiscal year ended December&nbsp;31, 2017. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;The
Company&#146;s Registration Statement on Form <FONT STYLE="white-space:nowrap">8-B</FONT> dated May&nbsp;22, 1969, as amended by an Amendment on Form 8, dated February&nbsp;3, 1987, describing the Common Stock, including any amendment or reports
filed for the purpose of updating such description. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In addition, all documents subsequently filed by the Company pursuant to Sections
13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;), prior to the filing of a post-effective amendment to this Registration Statement which indicates that all securities offered have been sold
or which deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference in this Registration Statement and to be a part hereof from the date of the filing of such documents. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or
superseded for purposes of this Registration Statement to the extent that a statement contained herein (or in any other subsequently filed document which also is incorporated or deemed to be incorporated by reference herein), modifies or supersedes
such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement. </P>
<P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;5. Interests of Named Experts and Counsel </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Katherine J. Brennan, Deputy General Counsel, Corporate Secretary&nbsp;&amp; Chief Compliance Officer of the Company will pass upon the
validity of the offered securities. Ms.&nbsp;Brennan is eligible to participate in the Plan. </P>

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

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;8. Exhibits. </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="6%"></TD>
<TD WIDTH="91%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" ALIGN="center"><B>Exhibit<BR>Number</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</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>&nbsp;&nbsp;4.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/62709/000006270908000150/ex3-1restatedcertofinc.htm">Restated Certificate of Incorporation of Marsh&nbsp;
&amp; McLennan Companies, Inc. (incorporated by reference to the Company&#146;s Current Report on Form <FONT STYLE="white-space:nowrap">8-K</FONT> filed on July&nbsp;18, 2008)* </A></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>&nbsp;&nbsp;4.2</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/62709/000006270917000002/mmcbylawsproxyaccessfinal0.htm">Amended and Restated Bylaws of Marsh&nbsp;
&amp; McLennan Companies, Inc. (incorporated by reference to the Company&#146;s Current Report on Form <FONT STYLE="white-space:nowrap">8-K</FONT> filed on January&nbsp;12, 2017)* </A></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>&nbsp;&nbsp;5.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="d577189dex51.htm">Opinion of Katherine J. Brennan </A></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>23.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="d577189dex231.htm">Consent of Independent Registered Public Accounting Firm, Deloitte&nbsp;&amp; Touche LLP </A></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>23.2</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="d577189dex51.htm">Consent of Counsel (included in Exhibit 5.1) </A></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>24</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="#poa">Power of Attorney (included on the signature pages of this Registration Statement) </A></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>99.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="d577189dex991.htm">Marsh&nbsp;&amp; McLennan Companies 1999 Employee Stock Purchase Plan (as amended and restated on May&nbsp;17, 2018) (filed herewith) </A></TD></TR>
</TABLE> <P STYLE="font-size:8pt;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%" VALIGN="top" ALIGN="left">*</TD>
<TD ALIGN="left" VALIGN="top">Incorporated herein by reference </TD></TR></TABLE>

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

 <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 Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form <FONT STYLE="white-space:nowrap">S-8</FONT> and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, State of New
York, on July&nbsp;30, 2018. </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"></TD>
<TD WIDTH="12%"></TD>
<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="80%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="5"><B>MARSH&nbsp;&amp; McLENNAN COMPANIES, INC.</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="4"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3" STYLE="BORDER-BOTTOM:1px solid #000000">/s/ Daniel S. Glaser</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">Daniel S. Glaser</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">Director, President and Chief Executive Officer</TD></TR>
</TABLE></DIV>

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

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="poa"></A>POWER OF ATTORNEY </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The undersigned directors and officers of the Marsh&nbsp;&amp; McLennan Companies, Inc. hereby appoint each of Katherine J. Brennan, Tiffany D. Wooley and
Connor Kuratek as <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">attorneys-in-fact</FONT></FONT> for the undersigned, with full power of substitution for, and in the name, place and stead of the undersigned, to sign and file with
the Securities and Exchange Commission under the Securities Act of 1933, any and all amendments (including post-effective amendments) and exhibits to this registration statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> (or any other
registration statement for the same offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act of 1933) and any and all applications and other documents to be filed with the Securities and Exchange Commission
pertaining to the registration of the securities covered hereby, with full power and authority to do and perform any and all acts and things whatsoever requisite and necessary or desirable, hereby ratifying and confirming all that said <FONT
STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">attorney-in-fact,</FONT></FONT> or his her substitute or substitutes, may lawfully do or cause to be done by virtue hereof. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the following capacities
on July&nbsp;30, 2018. </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">


<TR>
<TD WIDTH="37%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="58%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:33.30pt; display:inline; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Signature</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:15.95pt; display:inline; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Title</B></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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Daniel S. Glaser</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Daniel S. Glaser</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Director, President and Chief Executive Officer</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Principal Executive Officer)</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Mark C. McGivney</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Mark C. McGivney</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Chief Financial Officer</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Principal Financial Officer)</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Stacy M. Mills</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Stacy M. Mills</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Vice President and Controller</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Principal Accounting Officer)</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Anthony K. Anderson</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Anthony K. Anderson</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Oscar Fanjul</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Oscar Fanjul</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ H. Edward Hanway</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">H. Edward Hanway</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Deborah C. Hopkins</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Deborah C. Hopkins</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Elaine La Roche</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Elaine La Roche</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Steven A. Mills</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Steven A. Mills</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Bruce P. Nolop</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Bruce P. Nolop</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR></TABLE>

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


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


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<TD WIDTH="37%"></TD>
<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="58%"></TD></TR>

<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:33.30pt; display:inline; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Signature</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; width:15.95pt; display:inline; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Title</B></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="font-size:12pt; margin-top:0pt; margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Marc D. Oken</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Marc D. Oken</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="font-size:12pt; margin-top:0pt; margin-bottom:0pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Director</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Morton O. Schapiro</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Morton O. Schapiro</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Lloyd M. Yates</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Lloyd M. Yates</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</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; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ R. David Yost</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">R. David Yost</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR>
</TABLE>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>d577189dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
<HTML><HEAD>
<TITLE>EX-5.1</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B><U>EXHIBIT 5.1 </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">LETTERHEAD OF MARSH&nbsp;&amp; McLENNAN COMPANIES, INC. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-right:4%; font-size:10pt; font-family:Times New Roman" ALIGN="right">July 30, 2018 </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 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Re: Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> for the Marsh&nbsp;&amp; McLennan Companies 1999
Employee Stock Purchase Plan </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dear Ladies and Gentlemen: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">I am Deputy General Counsel, Corporate Secretary&nbsp;&amp; Chief Compliance Officer of Marsh&nbsp;&amp; McLennan Companies, Inc., a Delaware
corporation (the &#147;<B>Company</B>&#148;), and in such capacity I am rendering the opinions expressed below in connection with the preparation and filing of a Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> (the
&#147;<B>Registration Statement</B>&#148;) under the Securities Act of 1933, as amended (the &#147;<B>Securities Act</B>&#148;), for the registration of 4,750,000 shares of common stock, par value $1.00 per share (the &#147;<B>Shares</B>&#148;), of
the Company relating to the Marsh&nbsp;&amp; McLennan Companies 1999 Employee Stock Purchase Plan (the &#147;<B>Plan</B>&#148;). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In
connection with rendering such opinions, I or an attorney acting under my general supervision (all references herein to acts taken by me include acts by an attorney acting under my general supervision) have reviewed the Registration Statement, the
Restated Certificate of Incorporation and Bylaws of the Company, the Plan and resolutions duly adopted by the Board of Directors of the Company relating to the Plan and have examined originals or certified, conformed or reproduction copies of such
documents, corporate and other records of the Company and certificates of governmental officials and officers of the Company, and have made such investigations of law, as I have deemed necessary or appropriate for the purposes of such opinions. In
all such examinations, I have assumed without investigation the legal capacity of all natural persons executing documents, the genuineness of all signatures on original or certified copies, the authenticity of all original or certified copies and
the conformity to original or certified documents of all copies submitted to me as conformed or reproduction copies. I have relied as to factual matters upon, and have assumed the accuracy of, the statements made in certificates of officers of the
Company delivered to me, and certificates and other statements or information of or from public officials and officers and representatives of the Company and others. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Based solely upon the foregoing, and in reliance thereon, and subject to the limitations, qualifications and exceptions set forth herein, I am
of the opinion that the Shares to be issued under the Plan have been duly authorized and, when issued and delivered in accordance with the terms of the Plan, will be validly issued, fully paid and nonassessable. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">I am a member of the Bar of the State of New York. The opinions expressed above are limited to the Delaware General Corporation Law as
currently in effect. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">I hereby consent to the filing of this opinion as an exhibit to the Registration Statement. In giving this consent,
I do not hereby admit that I come within the category of persons whose consent is required under Section&nbsp;7 of the Securities Act or the rules and regulations of the Securities and Exchange Commission thereunder. </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TD VALIGN="top">Sincerely,</TD></TR>
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<TD HEIGHT="16"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">/s/ Katherine J. Brennan</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom">Katherine J. Brennan</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom">Deputy General Counsel, Corporate Secretary&nbsp;&amp; Chief Compliance Officer</TD></TR>
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<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>d577189dex231.htm
<DESCRIPTION>EX-23.1
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B><U>EXHIBIT 23.1 </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We consent to the incorporation by reference in this Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> of (1)&nbsp;our report dated
February&nbsp;22, 2018 (May 9, 2018 as to notes 1, 7, and 15) relating to the consolidated financial statements of Marsh&nbsp;&amp; McLennan Companies, Inc. (the &#147;Company&#148;) (which report expresses an unqualified opinion and includes an
explanatory paragraph regarding the Company&#146;s retrospective adjustment of the financial statements for a change in accounting principle relating to the presentation of the other components of net periodic benefit costs), appearing in the
Current Report on Form <FONT STYLE="white-space:nowrap">8-K</FONT> of Marsh&nbsp;&amp; McLennan Companies, Inc. dated May&nbsp;9, 2018 and (2)&nbsp;our report on the effectiveness of the Company&#146;s internal control over financial reporting as of
December&nbsp;31, 2017, appearing in the Annual Report on Form <FONT STYLE="white-space:nowrap">10-K</FONT> of Marsh&nbsp;&amp; McLennan Companies, Inc. for the year ended December&nbsp;31, 2017. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:2%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">/s/ DELOITTE&nbsp;&amp; TOUCHE LLP </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">New York, New York </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">July&nbsp;30, 2018 </P>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>4
<FILENAME>d577189dex991.htm
<DESCRIPTION>EX-99.1
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B><U>Exhibit 99.1 </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>AMENDED AND RESTATED </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>MARSH&nbsp;&amp; McLENNAN COMPANIES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>1999 EMPLOYEE STOCK PURCHASE PLAN </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(as amended and restated on May&nbsp;17, 2018) </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">1.&nbsp;&nbsp;&nbsp;&nbsp;<U>Purpose</U>. The purpose of the Plan is to provide eligible employees a convenient opportunity to purchase Stock
through annual offerings financed by regular payroll contributions. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">2.&nbsp;&nbsp;&nbsp;&nbsp;<U>Definitions</U>. The following terms,
when used in the Plan, shall have the following meanings: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;&#147;Base Compensation&#148; &#151; Base
Compensation shall be an employee&#146;s total compensation received during an offering period as determined under the Code for computing taxes for FICA purposes, including contributions made by the Company on behalf of each employee to any <FONT
STYLE="white-space:nowrap">tax-qualified</FONT> pension benefit plan pursuant to Section&nbsp;401(k) of the Code, but shall exclude any bonus, incentive or other similar extraordinary remuneration received by such employee. In addition, &#147;Base
Compensation&#148; shall include that portion of commissions earned by those employees of Putnam Investments, Inc. or its subsidiaries who are wholesalers or defined contribution plan sales representatives, which portion, for any such employee, when
added to other compensation included in this definition, does not exceed $125,000, or such other figure as may subsequently be approved by the Committee. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;&#147;Board&#148; &#151; The Board of Directors of MMC. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;&#147;Code&#148; &#151; The Internal Revenue Code of 1986, as amended. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d)&nbsp;&nbsp;&nbsp;&nbsp;&#147;Committee&#148; &#151; The Compensation Committee of the Board. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e)&nbsp;&nbsp;&nbsp;&nbsp;&#147;Company&#148; &#151; MMC and its Subsidiaries. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f)&nbsp;&nbsp;&nbsp;&nbsp;&#147;Exchange Act&#148; &#151; The Securities Exchange Act of 1934, as amended. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g)&nbsp;&nbsp;&nbsp;&nbsp;&#147;Fair Market Value&#148; &#151; Fair Market Value of a share of Stock on a given date shall be the average of
the high and low prices of the Stock on the New York Stock Exchange, Inc. composite tape on such date, or if no sales of the Stock were made on said Exchange on that date, the average of the high and low prices of the Stock on the next preceding day
on which sales were made on said Exchange. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(h)&nbsp;&nbsp;&nbsp;&nbsp;&#147;MMC&#148; &#151; Marsh&nbsp;&amp; McLennan Companies, Inc., a
Delaware corporation. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i)&nbsp;&nbsp;&nbsp;&nbsp;&#147;Plan&#148; &#151; this Marsh&nbsp;&amp; McLennan Companies 1999 Employee Stock
Purchase Plan. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(j)&nbsp;&nbsp;&nbsp;&nbsp;&#147;Stock&#148; &#151; Common stock, par value $1.00 per share, of MMC. </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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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(k)&nbsp;&nbsp;&nbsp;&nbsp;&#147;Subsidiary&#148; &#151; a corporation is a Subsidiary of MMC if
it meets the test of Section&nbsp;424(f) of the Code and the regulations promulgated thereunder. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">3.&nbsp;&nbsp;&nbsp;&nbsp;<U>Administration</U>. The Plan shall be administered by the Committee which shall be composed of disinterested
persons as such term is defined in the rules of the Securities and Exchange Commission, and whose actions and determinations on matters related to the Plan shall be conclusive. Subject to the express provisions of the Plan, the powers of the
Committee include having the authority, in its discretion, to: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;define, prescribe, amend and rescind rules,
regulations, procedures, terms and conditions relating to the Plan; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;make all other determinations necessary or
advisable for administering the Plan, including, but not limited to, interpreting the Plan, correcting defects, reconciling inconsistencies and resolving ambiguities; and </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;for the avoidance of doubt, delegate any of its administrative authority to appropriate officers or managers of MMC
to the extent permitted under applicable law. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">4.&nbsp;&nbsp;&nbsp;&nbsp;<U>Stock Subject to the Plan</U>. (a)&nbsp;The aggregate number
of shares of Stock which may be sold under the Plan shall not exceed 40.35&nbsp;million (which reflects adjustments for the 2002 stock split, the 2007 10&nbsp;million share reduction and the 2018 share increase). </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;If the number of shares of Stock that participating employees become entitled to purchase is greater than the shares
of Stock offered in a particular offering period or remaining available, the available shares of Stock shall be allocated by the Committee among such participating employees in such manner as it deems fair and equitable. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;In the event of any change in the Stock, through recapitalization, merger, consolidation, stock dividend or split,
combination or exchanges of shares or otherwise, the Committee may make such equitable adjustments in the Plan and the then outstanding offerings as it deems necessary and appropriate, including but not limited to changing the number of shares of
Stock reserved under the Plan, and the price of the current offering. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d)&nbsp;&nbsp;&nbsp;&nbsp;Shares of Stock which are to be delivered
under the Plan may be obtained by MMC from its treasury, by purchases on the open market or from private sources, or by issuing authorized but unissued shares of its Stock. Any issuance of authorized but unissued Stock shall be approved by the Board
or the Committee. Shares of authorized but unissued Stock may not be delivered under the Plan if the purchase price thereof is less than the par value of the Stock. Fractional shares of Stock may be issued and sold under the Plan. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">5.&nbsp;&nbsp;&nbsp;&nbsp;<U>Eligibility</U>. All employees of MMC or such of its Subsidiaries as shall be designated by MMC will be eligible
to participate in the Plan, in accordance with such rules as may be prescribed from time to time; provided, however, that such rules shall neither permit nor deny participation in the Plan contrary to the requirements of the Code (including, but not
limited </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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to, Section&nbsp;423(b)(3), (4) and (8)&nbsp;thereof) and regulations promulgated thereunder. No employee shall be eligible to participate in the Plan if his or her customary employment is less
than 20 hours per week or if he or she has been employed by the Company for less than six months. To the extent determined by either the Chief Executive Officer or the highest ranking human resource officer of MMC, such six month period may include
periods of employment with a business prior to its acquisition by the Company. No employee may be granted an option under the Plan if such employee, immediately after the option is granted, owns 5% or more of the total combined voting power or value
of the Stock of MMC or any subsidiary. For purposes of the preceding sentence, the rules of Section&nbsp;424(d) of the Code shall apply in determining the stock ownership of an employee, and stock which the employee may purchase under outstanding
options shall be treated as stock owned by the employee. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">6.&nbsp;&nbsp;&nbsp;&nbsp;<U>Offerings, Participation</U>. (a)&nbsp;MMC may make
one or more offerings of 12 months&#146; duration each, to eligible employees to purchase Stock under the Plan, and an eligible employee may participate in such offering at such time(s) as determined by the Committee by authorizing a payroll
deduction for such purpose in terms of whole number percentages up to a maximum of fifteen percent (15%) of his or her Base Compensation. The Committee may at any time suspend an offering if required by law or the best interests of the Company.
MMC&#146;s obligation to sell and deliver Stock under the Plan is subject to the approval of any governmental authority required in connection with the authorization, issuance or sale of such Stock. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;Each participant in an offering may be requested to notify the Company of any disposition of shares of Common Stock
purchased pursuant to the Plan prior to the expiration of the holding periods set forth in Section&nbsp;423(a) of the Code. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">7.&nbsp;&nbsp;&nbsp;&nbsp;<U>Deductions</U>. (a)&nbsp;The Company will maintain payroll deduction accounts for all participating employees.
The Committee shall determine whether to credit such accounts with interest, and, if so, the rate at which such interest shall be credited. Interest crediting may vary by Subsidiary provided the requirements of Section&nbsp;423(b)(5) of the Code are
satisfied. All funds received or held by the Company under the Plan need not be segregated from other corporate funds and may be used for any corporate purpose. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;Subject to rules, procedures and forms adopted by or at the direction of the Committee, an employee may at any time
increase, decrease or suspend his or her payroll deduction or may withdraw the balance of his or her payroll deduction account and thereby withdraw from participation in an offering. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;Any balance remaining in any employee&#146;s payroll deduction account at the end of an offering period will be
repaid to such employee. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d)&nbsp;&nbsp;&nbsp;&nbsp;In the event of a participating employee&#146;s retirement, death or termination of
employment, his or her participation in any offering under the Plan shall cease, no further amounts shall be deducted pursuant to the Plan, and the balance in the employee&#146;s account shall be paid to the employee, or, in the event of the
employee&#146;s death, to the employee&#146;s estate. </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; text-indent:4%; font-size:10pt; font-family:Times New Roman">8.&nbsp;&nbsp;&nbsp;&nbsp;<U>Purchase, Limitations</U>. (a)&nbsp;Within the limitations of
Section&nbsp;8(d) below, each employee participating in any offering under the Plan shall be granted an option, upon the effective date of such offering, for as many shares of Stock as the amount of the employee&#146;s payroll deduction account at
the end of any quarterly purchase period can purchase. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;As of the last day of each quarterly purchase period,
the payroll deduction account of each participating employee shall be totaled. Subject to the provisions of Section&nbsp;7(b) above, the employee shall be deemed to have exercised an option to purchase the largest number of shares of Stock
(including fractional shares of Stock) at the price determined under Section&nbsp;8(c) below; such employee&#146;s account will be charged, on that date, for the amount of the purchase, and for all purposes under the Plan the employee shall be
deemed to have acquired the shares of Stock on that date. The registrar for MMC will make an entry on its books and records evidencing that such shares (including any partial share) have been duly issued as of that date. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;On or before the effective date of each offering, the Committee shall determine the purchase price of the shares of
Stock which are to be sold under the offering or the formula for determining such price; provided, however, that no such price may be less than the amount equal to 95&nbsp;percent of the Fair Market Value of the Stock at the time such option is
exercised. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d)&nbsp;&nbsp;&nbsp;&nbsp;No employee may be granted an option under the Plan which permits his or her rights to purchase
Stock under the Plan, and any other stock purchase plan of MMC and its subsidiaries qualified under Section&nbsp;423 of the Code, to accrue at a rate which exceeds $25,000 (or such amount as may be adjusted from time to time under pertinent
regulations of the Code) of the Fair Market Value of such Stock (determined at the effective date of the offering) for each calendar year in which the option is outstanding at any time. In addition, the maximum number of shares which a participating
employee may purchase pursuant to any one offering period shall be the number of shares determined by (i)&nbsp;multiplying the amount of the participating employee&#146;s Base Compensation as of the pay period immediately preceding the date he or
she is first granted an option pursuant to such offering period by the number of pay periods from such date to the end of the offering period, and (ii)&nbsp;dividing that product by the Fair Market Value of a share of Stock on such date. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e)&nbsp;&nbsp;&nbsp;&nbsp;None of the rights or privileges of a stockholder of MMC, including without limitation rights to vote and receive
dividends, shall exist with respect to shares of Stock purchased under the Plan until the date on which the shares of Stock are deemed to be acquired pursuant to Section&nbsp;8(b) above. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f)&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;Notwithstanding anything in the Plan to the contrary, in the event of a change in control of the Company,
if the Committee determines that the operation or administration of the Plan could prevent participating employees from obtaining the benefit of the timely exercise of their options under the Plan, the Plan may be terminated in any manner deemed by
the Committee to provide equitable treatment to participating employees. Equitable treatment may include, but is not limited to, the payment to each participating employee of the amount of contributions and interest credited, if any, to such
participating employee&#146;s account as </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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of the date of the change in control, plus an additional amount determined by (A)&nbsp;calculating the number of full shares of stock that could have been purchased for the participating employee
immediately prior to the change in control with such amount at the purchase price (determined under Section&nbsp;8(c)) at the time the option is granted (the &#147;Purchase Price&#148;) and (B)&nbsp;multiplying that number of Shares by the
difference between the Purchase Price per Share and the highest price paid per share of Stock in connection with the change in control of the Company. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(ii)&nbsp;For purposes of the Plan, a &#147;change in control&#148; of the Company shall have occurred if: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(A)&nbsp;any &#147;person&#148;, as such term is used in Sections 13(d) and 14(d) of the Exchange Act (other than the Company, any trustee or
other fiduciary holding securities under an employee benefit plan of the Company or any corporation owned, directly or indirectly, by the stockholders of the Company in substantially the same proportions as their ownership of stock of the Company),
is or becomes the &#147;beneficial owner&#148; (as defined in Rule <FONT STYLE="white-space:nowrap">13d-3</FONT> under the Exchange Act), directly or indirectly, of securities of the Company representing 50% or more of the combined voting power of
the Company&#146;s then outstanding securities; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(B)&nbsp;during any period of two consecutive years, individuals who at the beginning of
such period constitute the Board and any new director (other than a director designated by a person who has entered into an agreement with the Company to effect a transaction described in clause (A), (C) or (D)&nbsp;of this Section) whose election
by the Board or nomination for election by the Company&#146;s stockholders was approved by a vote of at least <FONT STYLE="white-space:nowrap">two-thirds</FONT> (2/3) of the directors then still in office who either were directors at the beginning
of the period or whose election or nomination for election was previously so approved, cease for any reason to constitute at least a majority thereof; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(C)&nbsp;the stockholders of the Company approve a merger or consolidation of the Company with any other corporation, other than (a)&nbsp;a
merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity)
more than 50% of the combined voting power of the voting securities of the Company or such surviving entity or any parent of the Company or such surviving entity outstanding immediately after such merger or consolidation or (b)&nbsp;a merger or
consolidation effected to implement a recapitalization of the Company (or similar transaction) in which no &#147;person&#148; (as hereinabove defined) acquired more than 50% of the combined voting power of the Company&#146;s then outstanding
securities; or </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(D)&nbsp;the stockholders of the Company approve a plan of complete liquidation of the Company or an agreement for the sale
or disposition by the Company of all or substantially all of the Company&#146;s assets (or any transaction having a similar effect). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">9.&nbsp;&nbsp;&nbsp;&nbsp;<U>No Transfer</U>. (a)&nbsp;No option, right or benefit under the Plan may be transferred by a participating
employee other than by will or the laws of descent and distribution, and all options, rights and benefits under the Plan may be exercised during the participating employee&#146;s lifetime only by such employee. </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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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;Book entry accounts, or certificates for Stock purchased under the
Plan may be maintained, or registered, as the case may be, only in the name of the participating employee, or, if such employee so indicates on an appropriate form provided by the Company, in his or her name jointly with a member of his or her
family, with right of survivorship. An employee who is a resident of a jurisdiction which does not recognize such a joint tenancy may have such account maintained, or such certificates registered, in the employee&#146;s name as tenant in common with
a member of the employee&#146;s family, without right of survivorship. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">10.&nbsp;&nbsp;&nbsp;&nbsp;<U>Effective Date of the Plan</U>. The
Plan shall become effective upon its approval by the affirmative vote of the holders of a majority of the outstanding shares of Stock present, or represented, and entitled to vote at a meeting of stockholders of MMC to be held on May&nbsp;20, 1999,
or any adjournment thereof. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">11.&nbsp;&nbsp;&nbsp;&nbsp;<U>Amendment and Termination</U>. Subject to the provisions of Section&nbsp;4(b)
above, the Plan shall terminate coincident with the completion of any offering under which the limitation on the total number of shares in Section&nbsp;4(a) above has been reached. The Board may at any time terminate the Plan, or, subject to any
stockholder approval requirements (such as provided in Section&nbsp;423(b)(2) of the Code and any regulations promulgated thereunder or any stock exchange listing rule), make such amendment to the Plan as it may deem advisable. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">12.&nbsp;&nbsp;&nbsp;&nbsp;<U>Governing Law</U>. The Plan shall be interpreted, construed and administered in accordance with the laws of the
State of Delaware, without giving effect to principles of conflict of laws, to the extent not preempted by federal law. </P>
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