RSUs vest for Marsh & McLennan (NYSE: MMC) executive with tax withholding

Rhea-AI Filing Summary

Marsh & McLennan Companies executive Dean Michael Klisura reported equity compensation activity involving restricted stock units and common shares. On February 28, 2026, 9,383 restricted stock units vested and converted into an equal number of common shares on a 1‑for‑1 basis. Of these, 5,189 shares were withheld by the company at a price of $186.74 per share to cover taxes, leaving the remainder added to his directly held common stock, which totaled 25,129.48 shares after the tax withholding. He also reported 1,679.724 restricted stock units under the Supplemental Savings & Investment Plan, reflecting additional units acquired by the plan custodian at prevailing market prices as of that date.

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).

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^*

Klisura Dean Michael

(Last) (First) (Middle)

1166 AVENUE OF THE AMERICAS

(Street)

NEW YORK NY

(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)
	President & CEO, Guy Carpenter

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)		9,383	A	$0	30,318.48	D
Common Stock	02/28/2026		F(1)		5,189	D	$186.74	25,129.48	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)			9,383	(3)	(3)	Common Stock	9,383	$0	0	D
Restricted Stk. Units (SSIP)	(2)							(3)	(3)	Common Stock	1,679.724		1,679.724(4)	D

Explanation of Responses:

1. Vesting and distribution to reporting person of 9,383 shares underlying restricted stock units of which 5,189 were withheld by Marsh & McLennan Companies to cover applicable taxes. These 9,383 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.

4. Reflects additional stock units acquired by the Supplemental Savings & Investment Plan (SSIP) Custodian at prevailing market prices. Information reported herein is based on Reporting Person's Plan Statement as February 28, 2026.

	/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).
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FAQ

What insider transactions did MMC executive Dean Michael Klisura report?

Dean Michael Klisura reported vesting of 9,383 restricted stock units that converted into common shares. A portion of these shares was withheld to cover taxes, and his directly held common stock position was updated accordingly, along with holdings in a supplemental savings plan.

How many Marsh & McLennan (MMC) RSUs vested for Dean Michael Klisura?

A total of 9,383 restricted stock units vested for Dean Michael Klisura. These units converted into an equal number of Marsh & McLennan common shares, arising from performance stock units originally granted on February 23, 2023 for the 2023–2025 performance period.

How many MMC shares were withheld to cover Dean Klisura’s tax obligations?

The company withheld 5,189 common shares from Dean Klisura to cover applicable taxes. These shares were valued at a transaction price of $186.74 per share, representing a tax-withholding disposition rather than an open-market sale of stock.

What is Dean Klisura’s common stock holding in MMC after these transactions?

After the vesting and tax withholding transactions, Dean Klisura directly held 25,129.48 shares of Marsh & McLennan common stock. This figure reflects the net impact of the RSU conversion and the shares withheld for tax obligations on February 28, 2026.

What does the SSIP position reported by Dean Klisura represent at MMC?

The SSIP position represents 1,679.724 restricted stock units held under Marsh & McLennan’s Supplemental Savings & Investment Plan. According to the disclosure, these units reflect additional stock units acquired by the plan’s custodian at prevailing market prices as of February 28, 2026.

Were Dean Klisura’s MMC transactions open-market purchases or sales?

The transactions involved RSU vesting and related tax withholding, not open-market trading. Units converted into common stock on a 1‑for‑1 basis, and a portion of the resulting shares was delivered back to the company to satisfy tax liabilities associated with the vesting.