MRSH

Marsh & McLennan Companies
D

MRSH

Arincen80/100B

Who owns Marsh & McLennan Companies?

Institutions own 91.6% of Marsh & McLennan Companies's shares, through 1,533 funds, banks and other managers that report their holdings to the SEC; individual investors and others hold the rest. The largest on 30 June 2026 were BlackRock, Inc. (8.2%), Vanguard Capital Management LLC (6.5%), State Street Corp (4.6%).

Institutions own
91.6%
Institutional holders
1,533
The 10 largest hold
40.4%
Free float
99.5%
Holdings as of
30 Jun 2026

Who owns the shares

10 largest holders 40.4% Other institutions 51.2% Individuals and others 8.4%

Shares free to trade

Free float 475.06M shares ·99.5% Closely held 2.15M shares ·0.5%

Closely held shares belong to insiders, founders and owners of more than 5%, and seldom change hands. The free float is the rest: the shares anyone can buy and sell.

The largest shareholders

#HolderSharesOf the companyValueChange last quarter (shares)
1BlackRock, Inc.39,502,0468.20%6.58B USD-2,559,630
2Vanguard Capital Management LLC31,472,5756.53%5.25B USD+4,901
3State Street Corp22,401,6764.65%3.73B USD+330,731
4Capital World Investors18,122,3403.76%3.02B USD+153,158
5Wellington Management Group LLP16,975,2383.52%2.83B USD-395,471
6Capital International Investors15,729,4573.26%2.62B USD+15,604
7Geode Capital Management, LLC13,510,2742.80%2.25B USD+106,102
8Price T Rowe Associates Inc13,438,6622.79%2.24B USD+2,462,376
9Vanguard Portfolio Management LLC12,570,5122.61%2.10B USD+142,566
10Capital Research Global Investors10,973,6492.28%1.83B USD-327,539

Famous investors who own Marsh & McLennan Companies

InvestorOf their portfolioSharesValueLast quarter
Bill NygrenHarris Associates · Q2 20261.92%8,687,4961.45B USD+68.1%Added
Norway's Sovereign Wealth FundQ2 20260.10%6,255,5251.04B USD-25.4%Reduced
Saudi Central BankQ3 20260.08%49,3388.42M USD+46.3%Added
Ray DalioBridgewater Associates · Q2 20260.01%17,9492.99M USDNew
Renaissance TechnologiesQ3 20260.01%46,3007.90M USDNew
Ken GriffinCitadel · Q2 2026<0.01%230,80838.47M USD-71.9%Reduced
TemasekQ3 2026———Sold out

From each fund's newest 13F filing with the SEC; a fund's quarter can be newer or older than another's.All famous investors' portfolios

Congress trades in Marsh & McLennan Companies

Over the last 12 months, 1 members bought it (4 trades) and 4 sold it (9 trades).

MemberTradeOwnerAmountTradedDisclosedSince the tradeReport
RKevin HernRepresentative for Oklahoma's 1st districtSold allJoint$50,001 - $100,00023 Sept 2026
13 Oct 202620 days later
+21.9%
RKevin HernRepresentative for Oklahoma's 1st districtSold partJoint$50,001 - $100,00017 Sept 2026
13 Oct 202626 days later
+19.0%
RKevin HernRepresentative for Oklahoma's 1st districtSoldJoint$1,001 - $15,00014 Sept 2026
28 Sept 202614 days later
+15.1%
RKevin HernRepresentative for Oklahoma's 1st districtSoldJoint$100,001 - $250,0009 Sept 2026
28 Sept 202619 days later
+17.4%
RKevin HernRepresentative for Oklahoma's 1st districtSoldJoint$1,001 - $15,0002 Sept 2026
28 Sept 202626 days later
+10.6%
RKevin HernRepresentative for Oklahoma's 1st districtSold allJoint$1,001 - $15,00024 Aug 2026
2 Sept 20269 days later
+6.7%
DRo KhannaRepresentative for California's 17th districtBoughtChild$1,001 - $15,0002 Jun 2026
8 Jul 202636 days later
+28.7%
DRo KhannaRepresentative for California's 17th districtBoughtChild$1,001 - $15,0001 May 2026
11 Jun 202641 days later
+25.0%
DRo KhannaRepresentative for California's 17th districtBoughtSpouse$1,001 - $15,00013 Apr 2026
13 May 202630 days later
+19.7%
RAlan ArmstrongSenator for OklahomaSold allSelf$1,001 - $15,00027 Mar 2026
21 Jul 2026116 days later
+22.8%

Members of Congress must report a trade over $1,000 within 45 days, its amount as a range. A trade by a spouse or child is theirs to report too. The move since the trade is from the close on the day traded to the price now.All Congress stock trades

All institutions last quarter

Bought or added
770 · 140 new
Sold or cut
852 · 190 sold out
Net shares bought
+2.55M · 424.85M USD
Institutional ownership
90.7% → 91.6%

Biggest buyers last quarter

  • Norges BankNew position
  • Edgepoint Investment Group Inc.New position
  • Harris Associates L P+3,518,377
  • Sixth Street Partners Management Company, L.P.New position
  • Price T Rowe Associates Inc+2,462,376

Biggest sellers last quarter

  • FMR LLC-3,226,582
  • BlackRock, Inc.-2,559,630
  • Clearbridge Investments, LLC-1,717,565
  • Massachusetts Financial Services Co-1,692,894
  • Mawer Investment Management Ltd.-1,604,431

From the holders' 13F filings with the SEC for the quarter to 30 Jun 2026, filed up to 45 days after it; the buyers and sellers are among the 100 largest holders.

Common questions about Marsh & McLennan Companies's shareholders

Source: Financial Modeling PrepVerified against SEC filings