144Filing Date: Sep 2, 2026

Marsh & Mclennan (MRSH)

Insider Proposed Sale Notice

Brennan Katherine

Officer·Marsh & Mclennan

Proposed

CommonNYSE

Shares1.20K

Est. DateSep 2

Market Value$224.9K

BrokerFidelity Brokerage Services LLC

AcquisitionStock Option Exercise · Issuer

Acquired DateSep 2, 2026

Amount Acquired1.20K

% Outstanding0.0003%

Exercise / Payment Details

Paid: Sep 2, 2026Method: Cash

No sales in the past 3 months

Signature & Compliance expand_more

Notice DateSep 2, 2026

Signature /s/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Katherine J. Brennan.

Issuer Info expand_more

CompanyMARSH & MCLENNAN COMPANIES, INC.

CIK0000062709

SEC File No.001-05998

Phone2123455000

Address1166 AVENUE OF THE AMERICAS, NEW YORK, NY 10036