<SEC-DOCUMENT>0000950103-21-011248-index.html : 20210727
<SEC-HEADER>0000950103-21-011248.hdr.sgml : 20210727
<ACCEPTANCE-DATETIME>20210727164823
ACCESSION NUMBER:		0000950103-21-011248
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20210727
DATE AS OF CHANGE:		20210727
EFFECTIVENESS DATE:		20210727

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-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-258194
		FILM NUMBER:		211118240

	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-3ASR
<SEQUENCE>1
<FILENAME>dp154998_s3asr.htm
<DESCRIPTION>FORM S-3ASR
<TEXT>
Document 1 - file: dp154998_s3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>dp154998_ex0501.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 2 - file: dp154998_ex0501.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>dp154998_ex2301.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 3 - file: dp154998_ex2301.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-25.1
<SEQUENCE>4
<FILENAME>dp154998_ex2501.htm
<DESCRIPTION>EXHIBIT 25.1
<TEXT>
Document 4 - file: dp154998_ex2501.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-25.2
<SEQUENCE>5
<FILENAME>dp154998_ex2502.htm
<DESCRIPTION>EXHIBIT 25.2
<TEXT>
Document 5 - file: dp154998_ex2502.htm

</DOCUMENT>
</SEC-DOCUMENT>