Jan Siegmund - 15 Aug 2025 Form 4 Insider Report for MARSH & MCLENNAN COMPANIES, INC. (MMC)

Role: Director
Signature: /s/ Tessa Patti, Attorney-in-fact
Issuer symbol: MMC
Transactions as of: 15 Aug 2025
Net transactions value: +$836
Form type: 4
Filing time: 18 Aug 2025, 16:03:51 UTC
Previous filing: 03 Jun 2025
Next filing: 18 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Siegmund Jan	Director	1166 AVENUE OF THE AMERICAS, NEW YORK	/s/ Tessa Patti, Attorney-in-fact	18 Aug 2025	0001306577

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MMC	Restricted Stk. Units-Dir. Stk. Plan	Other	$836	+4	+0.43%	$208.06	934	15 Aug 2025	Common Stock	4		Direct	F1, F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis.
F2	Acquired with dividend equivalents credited to the reporting person's account under the Marsh & McLennan Companies Directors Stock Compensation Plan.
F3	Not applicable.