Marsh McLennan MRSH
Marsh McLennan is the 127th largest S&P 500 company by market cap, worth $93.9 billion. 12 directors have filed with the SEC in the last 12 months (who counts). 12 officers are on file. At 30 Jun 2026, Vanguard was its largest institutional holder, with 10.2% of the company.
- CEO
- John Q. Doyle
- Sector
- Financials
- Sub-industry
- Insurance Brokers
- Headquarters
- New York City, New York
- Founded
- 1905
- More
- Wikipedia
- Market cap
- $93.9B
- 127th largest, 23 Oct 2026 close
- Price to sales
- 3.5
- Market cap over revenue
- Market cap per employee
- $988K
- Market cap over employees
- Connections
- 3
- S&P 500 companies sharing a director or officer
Largest institutional holders
Each fund group's share of Marsh McLennan. Where a company has several share classes, the share is of its total value.
13F filings for the quarter to 30 Jun 2026
Board and officers
4 people here also hold roles at other S&P 500 companies.
Roles filed up to 30 Sep 2026
| Name | Title |
|---|---|
| Directors (12) | |
| Anthony AndersonDirector | |
| Bruce D. BroussardDirectorAlso at HP | |
| H. Edward HanwayDirector | |
| Peter HarrisonDirector | |
| Judith HartmannDirector | |
| Deborah C. HopkinsDirectorAlso at Union Pacific | |
| Tamara IngramDirector | |
| Jane H. LuteDirectorAlso at Union Pacific | |
| Steven A. MillsDirector | |
| Morton O. SchapiroDirector | |
| Jan SiegmundDirector | |
| Lloyd M. YatesDirectorAlso at NiSource | |
| Officers (12) | |
| John Q. DoylePresident and CEOLast filed 3 Sep 2026 | |
| Mark C. McGivneyEVP, CFO and COOLast filed 1 May 2026 | |
| Paul BeswickSVP, Chief Information OfficerLast filed 31 Jul 2026 | |
| Katherine BrennanSVP and General CounselLast filed 3 Sep 2026 | |
| Carmen FernandezSVP, Chief People OfficerLast filed 1 May 2026 | |
| John Jude JonesChief Marketing OfficerLast filed 7 Aug 2026 | |
| Dean Michael KlisuraPresident & CEO, Guy CarpenterLast filed 1 May 2026 | |
| Stacy MillsVice President and ControllerLast filed 3 Mar 2026 | |
| Edward Francis MoynihanPresident & CEO, Oliver WymanLast filed 10 Apr 2026 | |
| Martin SouthChief Client OfficerLast filed 29 Jul 2026 | |
| Nicholas Mark StuderPresident and CEO Marsh RiskLast filed 1 May 2026 | |
| Patrick TomlinsonPresident and CEO, MercerLast filed 1 May 2026 | |
Companies that share people with Marsh McLennan
Each person's title here, then at the other company.
- Union Pacific UNP
- Deborah C. Hopkins: Director here, Director there
- Jane H. Lute: Director here, Director there
- HP HPQ
- Bruce D. Broussard: Director here, Interim CEO there
- NiSource NI
- Lloyd M. Yates: Director here, Director and President & CEO there
Marsh McLennan's market cap since December 2008
Weekly, up to 23 Oct 2026
| Week ending | Market cap |
|---|---|
| 23 Oct 2026 | $93.9B |
| 26 Dec 2025 | $91.6B |
| 27 Dec 2024 | $105B |
| 29 Dec 2023 | $93.4B |
| 30 Dec 2022 | $82.1B |
| 31 Dec 2021 | $87.8B |
| 25 Dec 2020 | $58.4B |
| 27 Dec 2019 | $56.5B |
| 28 Dec 2018 | $39.7B |
| 29 Dec 2017 | $41.5B |
| 30 Dec 2016 | $34.9B |
| 25 Dec 2015 | $29.0B |
| 26 Dec 2014 | $31.4B |
| 27 Dec 2013 | $26.5B |
| 28 Dec 2012 | $18.6B |
| 30 Dec 2011 | $17.0B |
| 31 Dec 2010 | $14.9B |
| 25 Dec 2009 | $11.7B |
| 26 Dec 2008 | $12.0B |
Download Marsh McLennan's data as JSON, with the weekly market caps in billions of dollars from 5 Dec 2008.
Workforce
Headcount at 31 Dec 2025
- Employees
- 95,000
As of December 31, 2025, the Company and its consolidated subsidiaries employed more than 95,000 colleagues worldwide, including approximately 55,700 in Risk and Insurance Services and 29,100 in Consulting.
Insider trades
Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.
Trades from 30 Sep 2025 to 30 Sep 2026
Directors and officers sold $18.9 million of stock in 11 sales and made no open-market purchases in the 12 months to 30 Sep 2026.
| Date | Person | Value |
|---|---|---|
| 2 Sep 2026Sale | John Q. DoylePresident and CEO | $3.1M |
| 2 Sep 2026Sale | Katherine BrennanSVP and General Counsel | $225K |
| 6 Aug 2026Sale | John Jude JonesChief Marketing Officer | $1.2M |
| 29 Jul 2026Sale | Paul BeswickSVP, Chief Information Officer | $141K |
| 28 Jul 2026Sale | Martin SouthChief Client Officer | $1.3M |
| 23 Jul 2026Sale | Lloyd M. YatesDirector | $2.1M |
| 2 Jun 2026Sale | John Q. DoylePresident and CEO | $2.7M |
| 11 Mar 2026Sale | John Jude JonesChief Marketing Officer | $410K |
| 4 Mar 2026Sale | John Q. DoylePresident and CEO | $3.1M |
| 3 Mar 2026Sale | Nicholas Mark StuderPresident and CEO Marsh Risk | $706K |
Showing 10 of 11 trades
Trades by members of Congress and officials
Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.
Trades from 20 Oct 2023 to 20 Oct 2026
3 people disclosed 14 purchases and 15 sales of Marsh McLennan stock since October 2023.
| Date | Member or official | Amount |
|---|---|---|
| 23 Sep 2026 | Kevin HernHouse, R-OK 路 Sold | $50K to $100K |
| 17 Sep 2026 | Kevin HernHouse, R-OK 路 Sold | $50K to $100K |
| 14 Sep 2026 | Kevin HernHouse, R-OK 路 Sold | $1K to $15K |
| 9 Sep 2026 | Kevin HernHouse, R-OK 路 Sold | $100K to $250K |
| 2 Sep 2026 | Kevin HernHouse, R-OK 路 Sold | $1K to $15K |
| 24 Aug 2026 | Kevin HernHouse, R-OK 路 Sold | $1K to $15K |
| 2 Jun 2026 | Rohit KhannaHouse, D-CA 路 Bought | $1K to $15K |
| 13 Apr 2026 | Rohit KhannaHouse, D-CA 路 Bought | $1K to $15K |
| 27 Mar 2026 | Alan ArmstrongSenate, R-OK 路 Sold | $1K to $15K |
| 29 Jan 2026 | Rohit KhannaHouse, D-CA 路 Sold | $1K to $15K |
Showing 10 of 29 trades
Not on file: no WARN layoff notices under its own name since October 2023.