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<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><B><FONT
size=2>UNITED STATES</FONT></B></P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><B><FONT
size=2>SECURITIES AND EXCHANGE COMMISSION</FONT></B></P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><B><FONT
size=2>Washington, D.C. 20549</FONT></B></P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><B><FONT
size=2>_____________________</FONT></B></P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><B><FONT
size=2>FORM 8-K</FONT></B></P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><B><FONT
size=2>CURRENT REPORT</FONT></B></P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><B><FONT
size=2>Pursuant to Section 13 or 15(d) of the </FONT></B></P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><B><FONT
size=2>Securities Exchange Act of 1934</FONT></B></P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><FONT
size=2></FONT>&nbsp;</P>
<TABLE style="MARGIN-LEFT: 0pt; BORDER-COLLAPSE: collapse" cellPadding=0 width=468 border=0></TABLE>
<TABLE>
  <TR>
    <TD vAlign=top width=348>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=2>Date of report (Date of earliest event reported)</FONT></P></TD>
    <TD vAlign=top width=120>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><U><FONT
      size=2>June 28, 2005</FONT></U></P></TD></TR></TABLE>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<TABLE style="BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=625 border=0>

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    <TD width=1>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=1></FONT>&nbsp;</P></TD>
    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid"
    vAlign=top width=624>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>Marsh &amp; McLennan Companies, Inc.</FONT></P></TD></TR>
  <TR>
    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in"
    vAlign=top colSpan=2>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>(Exact Name of Registrant as Specified in Charter)</FONT></P></TD></TR>
  <TR>
    <TD width=1></TD>
    <TD width=534></TD></TR></TABLE>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<TABLE style="BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=625 border=0>

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    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid"
    vAlign=top width=197>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>Delaware</FONT></P></TD>
    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid"
    vAlign=top width=197>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>1-5998</FONT></P></TD>
    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid"
    vAlign=top width=232>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>36-2668272</FONT></P></TD></TR>
  <TR>
    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in"
    vAlign=top width=197>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>(State or Other Jurisdiction</FONT></P>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>of Incorporation)</FONT></P></TD>
    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in"
    vAlign=top width=197>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>(Commission File Number)</FONT></P></TD>
    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in"
    vAlign=top width=232>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>(IRS Employer</FONT></P>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>Identification No.)</FONT></P></TD></TR></TABLE>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
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    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid"
    vAlign=top width=391>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>1166 Avenue of the Americas, New York, NY</FONT></P></TD>
    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in; BORDER-BOTTOM: black 1pt solid"
    vAlign=top width=234>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>10036</FONT></P></TD></TR>
  <TR>
    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in"
    vAlign=top width=391>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>(Address of Principal Executive Offices)</FONT></P></TD>
    <TD
    style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; PADDING-TOP: 0in"
    vAlign=top width=234>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: center"><FONT
      size=2>(Zip Code)</FONT></P></TD></TR></TABLE>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><FONT
size=2></FONT>&nbsp;</P>
<TABLE style="MARGIN-LEFT: 0pt; BORDER-COLLAPSE: collapse" cellSpacing=0 width=468 border=0>
<TR>
    <TD vAlign=top width=348>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=2>Registrant's telephone number, including area code</FONT></P></TD>
    <TD vAlign=top width=120>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><U><FONT
      size=2>(212) 345-5000</FONT></U></P></TD></TR></TABLE>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: center"><FONT
size=2></FONT>&nbsp;</P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><FONT
size=2></FONT>&nbsp;</P>
<P
style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-INDENT: 0.5in; TEXT-ALIGN: left"><FONT
size=2>Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:</FONT></P>
<P style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; TEXT-ALIGN: left"><FONT
size=2></FONT>&nbsp;</P>
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    vAlign=top width=24>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=4><B>&#144;</B></FONT></P></TD>
    <TD
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    vAlign=top>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=2>Written communications pursuant to Rule 425 under the Securities
      Act (17 CFR 230.425)</FONT></P></TD></TR>
  <TR>
    <TD
    style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 3pt; PADDING-TOP: 0in"
    vAlign=top width=24>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=4><B>&#144;</B></FONT></P></TD>
    <TD
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    vAlign=top>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=2>Soliciting material pursuant to Rule 14a-12 under the Exchange Act
      (17 CFR 240.14a-12)</FONT></P></TD></TR>
  <TR>
    <TD
    style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 3pt; PADDING-TOP: 0in"
    vAlign=top width=24>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=4><B>&#144;</B></FONT></P></TD>
    <TD
    style="PADDING-RIGHT: 0in; PADDING-LEFT: 0in; PADDING-BOTTOM: 3pt; PADDING-TOP: 0in"
    vAlign=top>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=2>Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))</FONT></P></TD></TR>
  <TR>
    <TD vAlign=top width=24>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=4><B>&#144;</B></FONT></P></TD>
    <TD vAlign=top>
      <P
      style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; TEXT-ALIGN: left"><FONT
      size=2>Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))</FONT></P></TD></TR></TABLE>

<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

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<pAGE>
<!-- MARKER FORMAT-SHEET="Para Default" FSL="Default" -->
<P><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>ITEM 8.01. OTHER EVENTS</B> </FONT> </P>
As disclosed in its Quarterly Report on Form 10-Q for the three months ended March 31, 2005, Marsh &amp; McLennan Companies, Inc.
instituted certain organizational changes that affected MMC's reportable segments, effective January 1, 2005. Accordingly, MMC has
amended the description of its business, its management's discussion and analysis of financial condition and results of operations
and its segment data and related disclosures contained in its audited consolidated financial statements at December 31, 2004 and
2003 and for each of the three years in the period ended December 31, 2004 to reflect this change.

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE="2"><B>ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS</B> </FONT> </P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>(c) Exhibits</B> </FONT> </P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;23.1 Consent of Deloitte &amp; Touche LLP. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;99.1 Amended Item 1. Business of MMC's Annual Report on Form 10-K for the year ended December 31, 2004. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;99.2 Amended Item 6.  Selected Financial Data of MMC's Annual Report on Form 10-K for the year ended December 31, 2004. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;99.3 Amended Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations of MMC's
Annual Report on Form 10-K for the year ended December 31, 2004. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;99.4 Amended Item 8. Financial Statements and Supplementary Data of MMC's Annual Report on Form 10-K for the year ended
December 31, 2004. </FONT></P>

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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>2</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

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<pAGE>

<!-- MARKER FORMAT-SHEET="Head Major Center Bold" FSL="Default" -->
<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SIGNATURES</FONT></H1>
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 style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<TABLE>
<TR VALIGN="TOP">
     <TD WIDTH="400"></TD>
     <TD WIDTH="400"><B>Marsh &amp; McLennan Companies, Inc.</B><BR><BR>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<U>By: /s/ Sandra S. Wijnberg&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U><BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sandra S. Wijnberg<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Senior Vice President<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;and Chief Financial Officer</TD></TR>
</TABLE>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
Date:  June 28, 2005

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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:center;'><font size=2>3</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>
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<p style=' margin-bottom:0pt; margin-top:0pt;text-align:left;'><font size=2>&nbsp;</font></p>

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{"company-data": {"conformed-name": "MARSH & MCLENNAN COMPANIES, INC.", "cik": "0000062709", "assigned-sic": "6411", "irs-number": "362668272", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-05998", "film-number": "05926409"}, "business-address": {"street1": "1166 AVENUE OF THE AMERICAS", "city": "NEW YORK", "state": "NY", "zip": "10036", "phone": "2123455000"}, "mail-address": {"street1": "1166 AVENUE OF THE AMERICAS", "city": "NEW YORK", "state": "NY", "zip": "10036"}, "former-company": [{"former-conformed-name": "MARSH & MCLENNAN COMPANIES INC", "date-changed": "19920703"}, {"former-conformed-name": "MARLENNAN CORP", "date-changed": "19760505"}]}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_____________________
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of report (Date of earliest event reported)
June 28, 2005
Marsh & McLennan Companies, Inc.
(Exact Name of Registrant as Specified in Charter)
Delaware
1-5998
36-2668272
(State or Other Jurisdiction
of Incorporation)
(Commission File Number)
(IRS Employer
Identification No.)
1166 Avenue of the Americas, New York, NY
10036
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number, including area code
(212) 345-5000
Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

Written communications pursuant to Rule 425 under the Securities
      Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act
      (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))
ITEM 8.01. OTHER EVENTS
As disclosed in its Quarterly Report on Form 10-Q for the three months ended March 31, 2005, Marsh & McLennan Companies, Inc.
instituted certain organizational changes that affected MMC's reportable segments, effective January 1, 2005. Accordingly, MMC has
amended the description of its business, its management's discussion and analysis of financial condition and results of operations
and its segment data and related disclosures contained in its audited consolidated financial statements at December 31, 2004 and
2003 and for each of the three years in the period ended December 31, 2004 to reflect this change.
ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS
(c) Exhibits
23.1 Consent of Deloitte & Touche LLP.
99.1 Amended Item 1. Business of MMC's Annual Report on Form 10-K for the year ended December 31, 2004.
99.2 Amended Item 6.  Selected Financial Data of MMC's Annual Report on Form 10-K for the year ended December 31, 2004.
99.3 Amended Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations of MMC's
Annual Report on Form 10-K for the year ended December 31, 2004.
99.4 Amended Item 8. Financial Statements and Supplementary Data of MMC's Annual Report on Form 10-K for the year ended
December 31, 2004.
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SIGNATURES
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.
Marsh & McLennan Companies, Inc.
By: /s/ Sandra S. Wijnberg
Sandra S. Wijnberg
Senior Vice President
and Chief Financial Officer
Date:  June 28, 2005
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