MARSH & MCLENNAN COMPANIES, INC. Insider Trading Activity

Marsh & McLennan Companies Chief Financial Officer Mark C. McGivney reported the vesting and distribution of 17,961 restricted stock units that convert into common stock on a 1-for-1 basis.

Accepted by SEC EDGAR 03/03/2026 - 04:07 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Marsh & McLennan Companies Chief Financial Officer Mark C. McGivney reported the vesting and distribution of 17,961 restricted stock units that convert into common stock on a 1-for-1 basis. These units relate to performance stock units granted on February 23, 2023 for the 2023-2025 performance period.

Of the 17,961 resulting common shares, 9,170 shares were withheld by Marsh & McLennan Companies at a price of $186.74 per share to cover applicable taxes. Following these transactions, McGivney directly holds 42,469 shares of common stock.

Insider Trade Summary

17,961 shares exercised/converted

Exercise 3 txns

Insider MCGIVNEY MARK C

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	17,961	$0.00	$0.00
Exercise	Common Stock	17,961	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	9,170	$186.74	$1.71M

Holdings After Transaction: Restricted Stock Units — 0 contracts (Direct); Common Stock — 42,469 shares (Direct)

Holdings Before and After: Restricted Stock Units, 17,961 to 0 contracts (Direct); Common Stock, 33,678 to 42,469 shares (Direct)

Footnotes (3)

1. F1. Vesting and distribution to reporting person of 17,961 shares underlying restricted stock units of which 9,170 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 17,961 shares underlying restricted stock units relate to performance stock units that were granted on February 23, 2023 for the performance period 2023-2025.
2. F2. The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis.
3. F3. Not applicable.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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
Estimated average burden
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^*

MCGIVNEY MARK C

(Last) (First) (Middle)

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. [ MRSH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/28/2026

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
Common Stock	02/28/2026		M(1)		17,961	A	$0	51,639	D
Common Stock	02/28/2026		F(1)		9,170	D	$186.74	42,469	D

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 Stock Units	(2)	02/28/2026		M(1)			17,961	(3)	(3)	Common Stock	17,961	$0	0	D

Explanation of Responses:

1. Vesting and distribution to reporting person of 17,961 shares underlying restricted stock units of which 9,170 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 17,961 shares underlying restricted stock units relate to performance stock units that were granted on February 23, 2023 for the performance period 2023-2025.

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

3. Not applicable.

	/s/ Tessa Patti, Attorney-in-fact	03/03/2026
	** 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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