FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 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

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1. Name and Address of Reporting Person * CABIALLAVETTA MATHIS   2. Issuer Name and Ticker or Trading Symbol MARSH & MCLENNAN COMPANIES, INC. [MMC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Vice Chairman, Office of CEO (Last) (First) (Middle) 1166 AVENUE OF THE AMERICAS 3. Date of Earliest Transaction (Month/Day/Year) 01/15/2007 (Street) NEW YORK, NY 10036 4. If Amendment, Date Original Filed(Month/Day/Year) 6. 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. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 01/15/2007   M   25,457 (1) A $ 0 219,504.7928 (2) D   Common Stock 01/15/2007   F   4,134 (1) D $ 30.92 215,370.7928 (2) D   Common Stock - SIP               314.634 (3) I Stock Investment Plan (401K)

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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. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

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

4. Transaction Code (Instr. 8)

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

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

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

8. Price of Derivative Security (Instr. 5)

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

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

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

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Restricted Stk. Units -SISP

(4)

12/31/2006

J(5)

V

146.185

(6)

(6)

Common Stock

146.185

$ 0 (5)

6,280.422

D

Restricted Stock Units

(4)

01/15/2007

M

25,457

(6)

(6)

Common Stock

25,457

$ 0 (6)

89,030

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
CABIALLAVETTA MATHIS 1166 AVENUE OF THE AMERICAS NEW YORK, NY 10036			Vice Chairman, Office of CEO

Signatures

Leon Lichter, Attorney-in-Fact		01/17/2007
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(3)	Reflects shares acquired by the Stock Investment Plan (SIP) Custodian at prevailing market prices. Information reported herein is based on reporting person's Plan balance on December 31, 2006.
(5)	Reflects shares acquired by the Stock Investment Supplemental Plan (SISP) Custodian at prevailing market prices. Information reported herein is based on reporting person's Plan balance on December 31, 2006.
(1)	Vesting and distribution to reporting person of 25,457 shares of Restricted Stock Units of which 4,134 shares were withheld by MMC to cover applicatble taxes.
(2)	Includes 57.3513 shares acquired pursuant to the Marsh & McLennan Dividend Reinvestment Plan.
(4)	The security converts to MMC Common Stock on a 1-for-1 basis.
(6)	Not Applicable

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