SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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

1. Name and Address of Reporting Person^*

BONSIGNORE FRANCIS N

(Last)

(First)

(Middle)

1166 AVENUE OF THE AMERICAS

(Street)

NEW YORK

10036

(City)

(State)

(Zip)

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)
	Senior Vice President

3. Date of Earliest Transaction (Month/Day/Year)
05/11/2005

4. If Amendment, Date of 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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	03/30/2005		P	V	262.6773⁽¹⁾	A	$25.772⁽¹⁾	179,329.0504	D
Common Stock	03/30/2005		P	V	78.5589⁽²⁾	A	$30.5278	179,407.6093	D
Common Stock	05/11/2005		M		45,000	A	$13.0938	224,407.6093	D
Common Stock	05/11/2005		S		33,877	D	$29.0841	190,530.6093	D
Common Stock	05/11/2005		F		11,123	D	$29.33	179,407.6093	D
Common Stock	03/31/2005		P	V	672.4769⁽³⁾	A	$0⁽³⁾	16,091.1252	I	By Stock Investment Plan 401(k)

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 Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stk. Units -SISP	⁽⁴⁾	03/31/2005		P	V	1,007.2536⁽⁵⁾		⁽⁶⁾	⁽⁶⁾	Common Stock	1,007.2536	$0⁽⁵⁾	18,934.2402	D
Stock Options (Right to buy)	$13.0938	05/11/2005		M			45,000	⁽⁷⁾	05/15/2005	Common Stock	45,000	⁽⁶⁾	0	D

Explanation of Responses:

1. Reflects shares acquired under the MMC Employee Stock Purchase Plan (the "Plan") at a 15% discount pursuant to the terms of the Plan.

2. Reflects shares acquired pursuant to dividend reinvestment at prevailing market prices.

3. Reflects additional shares acquired by the Stock Investment Plan (SIP) Custodian at prevailing market prices. Information reported herein is based on reporting person's Plan Statement as of March 31, 2005.

4. The security converts to MMC Common Stock on a 1-for-1 basis

5. Reflects additional shares acquired by the Stock Investment Supplemental Plan (SISP) Custodian at prevailing market prices. Information reported herein is based on reporting person's Plan Statement as of March 31, 2005.

6. Not Applicable

7. These options vested in four equal annual installments on May 16th of 1996, 1997, 1998 and 1999.

	Francis N. Bonsignore	05/12/2005
	** Signature of Reporting Person	Date
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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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