Dean Michael Klisura - 28 Feb 2026 Form 4 Insider Report for MARSH & MCLENNAN COMPANIES, INC. (MRSH)

Role
President & CEO, Guy Carpenter
Signature
/s/ Tessa Patti, Attorney-in-fact
Issuer symbol
MRSH
Transactions as of
28 Feb 2026
Net transactions value
-$968,994
Form type
4
Filing time
03 Mar 2026, 16:09:13 UTC
Previous filing
26 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Klisura Dean Michael President & CEO, Guy Carpenter 1166 AVENUE OF THE AMERICAS, NEW YORK /s/ Tessa Patti, Attorney-in-fact 03 Mar 2026 0001901304

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MRSH Common Stock Options Exercise $0 +9,383 +45% $0.000000 30,318 28 Feb 2026 Direct F1
transaction MRSH Common Stock Tax liability $968,994 -5,189 -17% $186.74 25,129 28 Feb 2026 Direct F1

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 MRSH Restricted Stock Units Options Exercise $0 -9,383 -100% $0.000000 0 28 Feb 2026 Common Stock 9,383 Direct F1, F2, F3
holding MRSH Restricted Stk. Units (SSIP) 1,680 28 Feb 2026 Common Stock 1,680 Direct F2, F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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.
F2 The security converts to Marsh & McLennan Companies common stock on a 1-for-1 basis.
F3 Not applicable.
F4 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.