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


                                 April 6, 2001
  ---------------------------------------------------------------------------
                       (Date of earliest event reported)



                        Marsh & McLennan Companies, Inc.
               --------------------------------------------------
             (Exact name of registrant as specified in its charter)




        Delaware                   1-5998                36-2668272
------------------------------------------------------------------------------
     (State or other      (Commission File Number)      (IRS Employer
     jurisdiction of                                 Identification No.)
     incorporation)




1166 Avenue of the Americas, New York, NY                         10036
------------------------------------------------------------------------------
(Address of principal executive offices)                        (Zip Code)



                                 (212) 345-5000
     ---------------------------------------------------------------------
              (Registrant's telephone number, including area code)





<PAGE>


Item 9.  Regulation FD Disclosure

Putnam   Investments'   assets  under  management  at  the  end  of  March  were
inadvertently posted on the Putnam website. As of March 31, 2001 Putnam had $321
billion in assets under  management . In the normal course,  monthly  updates of
assets under management at Putnam will be posted to MMC's website  (www.mmc.com)
on the first business day following the end of each month,  except at the end of
March, June, September and December, when such information will be released with
MMC's quarterly earnings announcement.



<PAGE>




                                   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/ William L. Rosoff
                                                --------------------------------
                                                       Name:   William L. Rosoff
                                                   Title:  Senior Vice President
                                                             and General Counsel



Date: April 6, 2001
[{"type": "8-K", "sequence": "1", "filename": "0001.txt", "secsgml_size_bytes": 2811}]
{"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": "1597334"}, "business-address": {"street1": "2 LIBERTY SQU", "city": "BOSTON", "state": "MA", "zip": "02109", "phone": "8002251581"}, "mail-address": {"street1": "2 LIBERTY SQU", "street2": "MAILSTOP L5", "city": "BOSTON", "state": "MA", "zip": "02109"}, "former-company": {"former-conformed-name": "MARLENNAN CORP", "date-changed": "19760505"}}
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

                                 April 6, 2001
  ---------------------------------------------------------------------------
                       (Date of earliest event reported)

                        Marsh & McLennan Companies, Inc.
               --------------------------------------------------
             (Exact name of registrant as specified in its charter)

        Delaware                   1-5998                36-2668272
------------------------------------------------------------------------------
     (State or other      (Commission File Number)      (IRS Employer
     jurisdiction of                                 Identification No.)
     incorporation)

1166 Avenue of the Americas, New York, NY                         10036
------------------------------------------------------------------------------
(Address of principal executive offices)                        (Zip Code)

                                 (212) 345-5000
     ---------------------------------------------------------------------
              (Registrant's telephone number, including area code)
Item 9.  Regulation FD Disclosure

Putnam   Investments'   assets  under  management  at  the  end  of  March  were
inadvertently posted on the Putnam website. As of March 31, 2001 Putnam had $321
billion in assets under  management . In the normal course,  monthly  updates of
assets under management at Putnam will be posted to MMC's website  (www.mmc.com)
on the first business day following the end of each month,  except at the end of
March, June, September and December, when such information will be released with
MMC's quarterly earnings announcement.
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/ William L. Rosoff
                                                --------------------------------
                                                       Name:   William L. Rosoff
                                                   Title:  Senior Vice President
                                                             and General Counsel

Date: April 6, 2001