Key facts
- This page summarizes Katherine Brennan's Form 4 filing for MARSH & MCLENNAN COMPANIES, INC. (MRSH).
- 3 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 03 Sep 2026, 16:02.
Katherine Brennan - 02 Sep 2026 Form 4 Insider Report for MARSH & MCLENNAN COMPANIES, INC. (MRSH)
- Reporting relationship
- SVP and General Counsel
- Issuer ticker
- MRSH
- Reported as of
- 02 Sep 2026
- Net transaction value
- -$224,915
- SEC form
- 4
- Accepted by SEC
- 03 Sep 2026, 16:02:48 UTC
- Prior SEC filing
- 01 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Tessa Patti, Attorney-in-fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Katherine Brennan filed Form 4 for MARSH & MCLENNAN COMPANIES, INC. (MRSH) on 03 Sep 2026.
Change
- Previous filing in this sequence was filed on 01 May 2026.
- Current net transaction value: -$224,915.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001917984
Primary reporting owner
Brennan Katherine
- Relationship
- SVP and General Counsel
- Address
- 1166 AVENUE OF THE AMERICAS, NEW YORK
- Signature
- /s/ Tessa Patti, Attorney-in-fact
- Signature date
- 03 Sep 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
MRSH
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +1,197
- Change %
- +16%
- Price
- $83.05*
- Shares after
- 8,527
- Date
- 02 Sep 2026
- Ownership
- Direct
MRSH
transaction
Common Stock
Sale
- Transaction value
- $224,915
- Shares
- -1,197
- Change %
- -14%
- Price
- $187.90
- Shares after
- 7,330
- Date
- 02 Sep 2026
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
MRSH
transaction
Derivative
Stock Options (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -1,197
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 02 Sep 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,197
- Exercise price
- $83.05
- Footnotes
- F1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
These options were granted on February 21, 2018 and vested in four equal annual installments on February 21st of 2019, 2020, 2021 and 2022.