FORM 4	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549	OMB APPROVAL
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).	STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940	OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response. . .0.5 Filed By Romeo & Dye's Instant Form 4 Filer www.section16.net

1. Name and Address of Reporting Person* COSTER, PETER	2. Issuer Name and Ticker or Trading Symbol MARSH & McLENNAN COMPANIES, INC.		6. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director                                       10% Owner     Officer (give title below)          Other (specify below)
(Last)      (First)     (Middle) 1166 AVENUE OF THE AMERICAS	3. I.R.S. Identification Number of Reporting Person, if an entity (voluntary)	4. Statement for Month/Day/Year 01-01-2003
(Street) NEW YORK, NY 10036-2774		5. If Amendment, Date of Original (Month/Day/Year)	7. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person     Form filed by More than One Reporting Person
(City)     (State)     (Zip)	Table I — Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1. Title of Security (Instr. 3)	2. Trans- action Date (Month/ Day/ Year)	2A. Deemed Execution Date, if any (Month/Day/ Year)	3. Trans- action Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 & 5)			5. Amount of Securities Beneficially Owned Follow- ing Reported Transactions(s) (Instr. 3 & 4)	6. Owner- ship Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
COMMON	01-01-2003		J		4,800(1)	A			D
COMMON	01-01-2003		F		2,045(1)	D	45.925	44,087	D
COMMON	01-01-2003		J		4,800(1)	D		156,200	I	RESTRICTED STOCK
COMMON								105,994	I	RESTRICTED STOCK UNITS
COMMON								25,704.1986	I	SISP
COMMON								284.3548	I	STOCK INVESTMENT PLAN (401K)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number

FORM 4 (continued) Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conver- sion or Exercise Price of Derivative Security

3. Trans- action Date (Month/ Day/ Year)

3A. Deemed Execution Date, if any (Month/ Day/ Year)

4. Trans- action Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 & 5)

6. Date Exercisable and Expiration Date (Month/Day/ Year)

7. Title and Amount of Underlying Securities (Instr. 3 & 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Owner- ship Form of Deriv- ative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exer-cisable

Expira- tion Date

Title

Amount or Number of Shares

Explanation of Responses:

(1) VESTING AND DISTRIBUTION OF 4,800 SHARES OF RESTRICTED STOCK OF WHICH 2,045 SHARES WERE WITHHELD TO COVER APPLICABLE TAXES.

By: /s/ WILLIAM J. WHITE
             Attorney-in-fact
**Signature of Reporting Person 01-02-2003
Date

**Intentional misstatements or omissions of facts constitute Federal Criminal Violations.
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed.
          If space is insufficient, See Instruction 6 for procedure.

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

                              POWER OF ATTORNEY

                         FOR EXECUTING FORMS 3, 4 AND 5

         Know all by these presents, that the undersigned hereby constitutes and
appoints each of William L. Rosoff, Gregory Van Gundy and William J. White,
signing singly, his true and lawful attorney-in-fact to:

         (1)   execute for and on behalf of the undersigned Forms 3, 4 and 5 in
               accordance with Section 16(a) of the Securities Exchange Act of
               1934 and the rules thereunder;

         (2)   do and perform any and all acts for and on behalf of the
               undersigned which may be necessary or desirable to complete the
               execution of any such Form 3, 4 or 5 and the timely filing of
               such form with the United States Securities and Exchange
               Commission and any other authority; and

         (3)   take any other action of any type whatsoever in connection with
               the foregoing which, in the opinion of such attorney-in-fact, may
               be of benefit to, in the best interest of, or legally required
               by, the undersigned, it being understood that the documents
               executed by such attorney-in-fact on behalf of the undersigned
               pursuant to this Power of Attorney shall be in such form and
               shall contain such terms and conditions as such attorney-in-fact
               may approve in his discretion.

         The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform each and every act and thing whatsoever
requisite, necessary and proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or his substitute or substitutes, shall lawfully do or cause
to be done by virtue of this Power of Attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming any
of the undersigned's responsibilities to comply with Section 16 of the
Securities Exchange Act of 1934. This authorization shall remain in effect
unless and until it is revoked in writing by the undersigned.

         IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 15th day of March, 2001.



                                             /s/ Peter Coster
                                             ___________________________________

                                             Peter Coster