MRSH · NYSE · Insurance - Brokers

Marsh McLennan

Combines insurance and reinsurance brokerage with workforce, investment, and management consulting.

$185.69
After-hours close−6.96 (−3.61%)
At close$192.65(+1.39%)

Breakdown13F · Form 4

Institutions 118.04%Insiders 0.08%

A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.

Shares outstanding 477.21M · Float 476.72M · 99.9% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
BlackRock, Inc.39.50M8.28%13FAug 7, 2026
Vanguard Capital Management LLC31.47M6.60%13FAug 13, 2026
State Street Corp22.40M4.69%13FAug 7, 2026
Capital World Investors18.12M3.80%13FAug 12, 2026
Wellington Management Group LLP16.98M3.56%13FAug 14, 2026

Institutions13F, as of Jun 30, 2026

1,523 holders · 563.32M shares · 142 new positions · 625 increased · 658 reduced · 194 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.39.50M8.28%−2.56MAug 7, 2026
Vanguard Capital Management LLC31.47M6.60%+4.9KAug 13, 2026
State Street Corp22.40M4.69%+330.7KAug 7, 2026
Capital World Investors18.12M3.80%+153.2KAug 12, 2026
Wellington Management Group LLP16.98M3.56%−395.5KAug 14, 2026
Capital International Investors15.73M3.30%+15.6KAug 12, 2026
Geode Capital Management, LLC13.51M2.83%+106.1KAug 12, 2026
Price T Rowe Associates Inc /MD/13.44M2.82%+2.46MAug 14, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Vanguard Capital Management7.52%36.42M13GApr 30, 2026

InsidersForm 4

InsiderRoleShares% outstandingFiled
John Q. Doyleofficer: President and CEO116.8K0.02%Mar 5, 2026
Oscar Fanjuldirector44.0K0.01%May 15, 2025
Mark C. Mcgivneyofficer: Chief Financial Officer42.5K0.01%Mar 3, 2026
H. Edward Hanwaydirector35.5K0.01%Jun 3, 2025
Nicholas Mark Studerofficer: President and CEO of OWG32.5K0.01%Mar 4, 2026
Dean Michael Klisuraofficer: President & CEO, Guy Carpenter25.1K0.01%Mar 3, 2026
Martin Southofficer: Chief Client Officer16.6K0.00%Jul 29, 2026
Paul Beswickofficer: SVP, Chief Information Officer16.4K0.00%Jul 31, 2026
Carmen Fernandezofficer: SVP, Chief People Officer13.0K0.00%Mar 3, 2026
Lloyd M. Yatesdirector12.0K0.00%Jul 24, 2026

44 people have not refiled in the last 18 months (3.70M shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 6, 2026
John Jude Jonesofficer: Chief Marketing Officer
Sale6,500$191.961,478
Jul 29, 2026
Paul Beswickofficer: SVP, Chief Information Officer
Sale713$198.0016,376
Jul 28, 2026
Martin Southofficer: Chief Client Officer
Sale7,100$189.9916,632
Jul 23, 2026
Lloyd M. Yatesdirector
Sale12,000$175.6512,001
Mar 11, 2026
John Jude Jonesofficer: Chief Marketing Officer
Sale2,362$173.617,978
Mar 4, 2026
John Q. Doyleofficer: President and CEO
Sale16,655$183.30116,811
Mar 3, 2026
Nicholas Mark Studerofficer: President and CEO of OWG
Sale3,837$184.0332,536
Dec 1, 2025
John Q. Doyleofficer: President and CEO
Sale21,079$182.2287,681
Sep 2, 2025
John Q. Doyleofficer: President and CEO
Sale21,079$205.6587,681

CongressHouse and Senate disclosures

MemberTypeAmountOwnerTradedDisclosed
Rep. Ro Khanna · CA17Purchase$1,001 – $15,000Jun 2, 2026Jul 8, 2026
Rep. Ro Khanna · CA17Purchase$1,001 – $15,000May 1, 2026Jun 11, 2026
Rep. Ro Khanna · CA17Purchase$1,001 – $15,000SpouseApr 13, 2026May 13, 2026
Sen. Tina Smith · MNSale$50,001 – $100,000SpouseJan 27, 2026Jan 30, 2026