[Form 4] MARSH & MCLENNAN COMPANIES, INC. Insider Trading Activity

Rhea-AI Filing Summary

Marsh & McLennan Companies director reports additional stock units. A director of MARSH & MCLENNAN COMPANIES, INC. (MMC) reported an acquisition of derivative securities on 11/14/2025. The filing shows the director received 37.37 restricted stock units through dividend equivalents credited under the Marsh & McLennan Companies Directors Stock Compensation Plan. These units convert into Marsh & McLennan common stock on a 1-for-1 basis. Following this transaction, the director beneficially owned 7,653.6 restricted stock units, held in direct ownership.

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

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Ingram Tamara

(Last) (First) (Middle)

C/O MARSH & MCLENNAN COMPANIES, INC.

1166 AVENUE OF THE AMERICAS

(Street)

NEW YORK NY 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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/14/2025

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)
			Code	V	Amount	(A) or (D)	Price

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stk. Units-Dir. Stk. Plan	(1)	11/14/2025		J(2)	V	37.37		(3)	(3)	Common Stock	37.37	$183.435	7,653.6	D

Explanation of Responses:

1. The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis.

2. Acquired with dividend equivalents credited to the reporting person's account under the Marsh & McLennan Companies Directors Stock Compensation Plan.

3. Not Applicable

	/s/ Tessa Patti, Attorney-in-fact	11/18/2025
	** 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).
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.

FAQ

What did MMC disclose in this Form 4 insider transaction?

The Form 4 reports that a director of Marsh & McLennan Companies, Inc. (MMC) acquired 37.37 restricted stock units on 11/14/2025 as derivative securities that convert into common stock on a 1-for-1 basis.

How many Marsh & McLennan restricted stock units does the director own after this transaction?

After the reported transaction, the director beneficially owned 7,653.6 restricted stock units of Marsh & McLennan Companies, Inc., held in direct ownership.

How were the additional MMC restricted stock units acquired by the director?

The 37.37 restricted stock units were acquired with dividend equivalents credited to the director's account under the Marsh & McLennan Companies Directors Stock Compensation Plan.

What is the conversion ratio for the MMC restricted stock units reported?

Each restricted stock unit reported in the Form 4 converts into Marsh & McLennan Companies common stock on a 1-for-1 basis.

Is this MMC Form 4 filed by one reporting person or multiple insiders?

The filing indicates that the Form 4 is filed by one reporting person, who serves as a director of Marsh & McLennan Companies, Inc.

What is the nature of ownership for the derivative securities reported for MMC?

The Form 4 states that the 7,653.6 restricted stock units are held under direct (D) ownership by the reporting director.