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Marsh & McLennan Companies, Inc.

MRSH
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
SEC CIK
0000062709

In the last 90 days, Marsh & McLennan Companies, Inc. insiders filed 0 open-market purchases and 6 sales; 1,506 institutions reported holding it in 13F filings for Q2 2026, worth $73.1B in total; superinvestors Harris Associates (Oakmark) and Markel Group hold it.

13F holders, Q3 2025

Institutional positions in Marsh & McLennan Companies, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,576
−6 vs. Q2 2025
Shares held
432.7M
−8.65M (−2.0%) vs. Q2 2025
Total value
$87.2B
−$8.72B (−9.1%) vs. Q2 2025
New holders
147
561 more added
Sold out
153
607 more reduced

28 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MRSH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 1,576 institutions
Q1 2021: 979 institutionsQ2 2021: 1,007 institutionsQ3 2021: 1,078 institutionsQ4 2021: 1,170 institutionsQ1 2022: 1,151 institutionsQ2 2022: 1,150 institutionsQ3 2022: 1,159 institutionsQ4 2022: 1,223 institutionsQ1 2023: 1,228 institutionsQ2 2023: 1,258 institutionsQ3 2023: 1,294 institutionsQ4 2023: 1,376 institutionsQ1 2024: 1,444 institutionsQ2 2024: 1,476 institutionsQ3 2024: 1,531 institutionsQ4 2024: 1,578 institutionsQ1 2025: 1,627 institutionsQ2 2025: 1,610 institutionsQ3 2025: 1,576 institutionsQ4 2025: 1,594 institutionsQ1 2026: 1,548 institutionsQ2 2026: 1,506 institutions
Value heldQ3 2025: $87.2B
Q1 2021: $54.7BQ2 2021: $63.6BQ3 2021: $68.0BQ4 2021: $77.6BQ1 2022: $75.2BQ2 2022: $68.6BQ3 2022: $65.5BQ4 2022: $72.3BQ1 2023: $72.1BQ2 2023: $81.5BQ3 2023: $82.0BQ4 2023: $82.4BQ1 2024: $89.9BQ2 2024: $92.3BQ3 2024: $97.1BQ4 2024: $94.2BQ1 2025: $108.0BQ2 2025: $97.3BQ3 2025: $87.2BQ4 2025: $80.9BQ1 2026: $76.1BQ2 2026: $73.1B
Institutions holding MRSH and their total value by quarter
QuarterHoldersValue
Q2 20261,506$73.1B
Q1 20261,548$76.1B
Q4 20251,594$80.9B
Q3 20251,576$87.2B
Q2 20251,610$97.3B
Q1 20251,627$108.0B
Q4 20241,578$94.2B
Q3 20241,531$97.1B
Q2 20241,476$92.3B
Q1 20241,444$89.9B
Q4 20231,376$82.4B
Q3 20231,294$82.0B
Q2 20231,258$81.5B
Q1 20231,228$72.1B
Q4 20221,223$72.3B
Q3 20221,159$65.5B
Q2 20221,150$68.6B
Q1 20221,151$75.2B
Q4 20211,170$77.6B
Q3 20211,078$68.0B
Q2 20211,007$63.6B
Q1 2021979$54.7B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Marsh & McLennan Companies, Inc.; share changes are against Q2 2025.

Institutions holding MRSH in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Brown, Lisle/Cummings, Inc.20,347$4.10M1.05%+1,902+10.3%Added
Conning Inc.20,462$4.12M0.14%+1,438+7.6%Added
Agf Management Ltd20,516$4.13M0.02%+2,072+11.2%Added
Vident Advisory, LLC20,578$4.15M0.04%+90+0.4%Added
Town & Country Bank & Trust CO dba First Bankers Trust CO20,596$4.15M1.45%+1,642+8.7%Added
JB Capital LLC20,742$4.18M0.18%+20,742New
E. Ohman J:or Asset Management AB20,837$4.20M0.10%00.0%Unchanged
Mediolanum International Funds Ltd21,022$4.21M0.04%+1,694+8.8%Added
AIA Group Ltd20,902$4.21M0.07%−1,585−7.0%Reduced
Phoenix Holdings Ltd.20,921$4.22M0.05%−22,362−51.7%Reduced
Larson Financial Group LLC21,297$4.29M0.15%+2,699+14.5%Added
Mogy Joel R Investment Counsel Inc21,298$4.29M0.24%−725−3.3%Reduced
Occidental Asset Management, LLC21,606$4.35M0.55%+831+4.0%Added
Sciencast Management LP22,044$4.44M0.83%+3,956+21.9%Added
Capital Planning Advisors, LLC22,089$4.45M0.61%−5,611−20.3%Reduced
New Mexico Educational Retirement Board22,241$4.48M0.14%−700−3.1%Reduced
Keybank National Association22,254$4.48M0.02%−155−0.7%Reduced
BNC Wealth Management, LLC22,283$4.49M1.13%−120−0.5%Reduced
Burling Wealth Partners, LLC22,334$4.50M0.75%+548+2.5%Added
Merit Financial Group, LLC22,536$4.54M0.04%+1,398+6.6%Added
Moneta Group Investment Advisors LLC22,538$4.54M0.04%+967+4.5%Added
QRG Capital Management, Inc.22,801$4.60M0.06%−18,916−45.3%Reduced
NBT Bank N A23,099$4.62M0.30%−723−3.0%Reduced
Exchange Traded Concepts, LLC22,966$4.63M0.04%+7,625+49.7%Added
ING Groep NV23,022$4.64M0.03%−808−3.4%Reduced
Cary Street Partners Financial LLC23,038$4.64M0.12%−1,043−4.3%Reduced
Diversified Trust Co23,076$4.65M0.09%−1,130−4.7%Reduced
Te Ahumairangi Investment Management Ltd23,107$4.66M0.79%+7,000+43.5%Added
Exencial Wealth Advisors, LLC23,584$4.75M0.15%+514+2.2%Added
Securian Asset Management, Inc23,743$4.78M0.13%−2,064−8.0%Reduced
Commerce Bank23,846$4.81M0.03%−133−0.6%Reduced
Lighthouse Investment Partners, LLC24,245$4.89M0.18%+24,245New
Stonegate Investment Group, LLC24,250$4.89M0.11%+154+0.6%Added
Harrington Investments, INC24,376$4.91M2.45%−175−0.7%Reduced
Zions Bancorporation, National Association24,537$4.94M0.24%−7,926−24.4%Reduced
Maryland State Retirement & Pension System24,609$4.96M0.10%+621+2.6%Added
Gulf International Bank (UK) Ltd24,654$4.97M0.16%−456−1.8%Reduced
Bonness Enterprises Inc25,300$5.10M1.67%00.0%Unchanged
Banco Bilbao Vizcaya Argentaria, S.A.25,604$5.16M0.04%+3,906+18.0%Added
Capital International Ltd25,645$5.17M0.19%+781+3.1%Added
Schaper Benz & Wise Investment Counsel Inc25,670$5.17M0.38%−220−0.8%Reduced
Aviso Financial Inc.25,714$5.18M0.21%−839−3.2%Reduced
Louisiana State Employees Retirement System25,800$5.20M0.09%−200−0.8%Reduced
FineMark National Bank & Trust25,866$5.21M0.17%−487−1.8%Reduced
First National Bank of Mount Dora, Trust Investment Services25,958$5.23M1.16%+8,938+52.5%Added
Mount Yale Investment Advisors, LLC26,010$5.24M0.37%+1,205+4.9%Added
BI Asset Management Fondsmaeglerselskab A/S26,187$5.28M0.05%−17,014−39.4%Reduced
Norinchukin Bank, The26,371$5.31M0.07%+544+2.1%Added
Umb Bank N A26,546$5.35M0.08%−19,132−41.9%Reduced
Horizon Investments, LLC27,345$5.49M0.07%+10,237+59.8%Added
M&G Plc27,571$5.57M0.03%00.0%Unchanged
Hamilton Capital Partners Inc.27,727$5.59M0.23%+4,537+19.6%Added
Boston Private Wealth LLC27,737$5.59M0.30%−3,608−11.5%Reduced
Benjamin Edwards Inc27,875$5.62M0.06%+4,511+19.3%Added
Crossmark Global Holdings, Inc.27,984$5.64M0.08%−3,437−10.9%Reduced
Parcion Private Wealth LLC28,030$5.65M0.35%+138+0.5%Added
Empowered Funds, LLC28,044$5.65M0.06%+14,920+113.7%Added
Erste Asset Management GmbH28,366$5.68M0.05%−400,026−93.4%Reduced
Hantz Financial Services, Inc.28,394$5.72M0.09%+14,684+107.1%Added
Synovus Financial Corp28,597$5.76M0.07%+282+1.0%Added
Snowden Capital Advisors LLC28,725$5.79M0.16%+488+1.7%Added
Ieq Capital, LLC28,770$5.80M0.02%+6,150+27.2%Added
Hartford Investment Management Co28,889$5.82M0.18%−873−2.9%Reduced
First Manhattan Co29,079$5.86M0.02%+911+3.2%Added
Metis Global Partners, LLC29,264$5.90M0.14%−1,423−4.6%Reduced
Cape Cod Five Cents Savings Bank26,703$5.96M0.55%00.0%Unchanged
Capitolis Liquid Global Markets LLC29,800$6.01M0.05%+29,800New
Achmea Investment Management B.V.29,967$6.04M0.08%+1,217+4.2%Added
Advisors Asset Management, Inc.30,078$6.06M0.10%+4,106+15.8%Added
M&T Bank Corp30,665$6.18M0.02%−8,564−21.8%Reduced
Kentucky Retirement Systems30,987$6.24M0.17%−615−1.9%Reduced
Tower View Investment Management & Research LLC31,053$6.26M3.24%+345+1.1%Added
Brevan Howard Capital Management LP31,508$6.35M0.09%−14,107−30.9%Reduced
Intech Investment Management LLC32,533$6.56M0.06%−19,871−37.9%Reduced
Oak Ridge Investments LLC32,841$6.62M0.43%−160.0%Reduced
Auxier Asset Management33,615$6.77M0.95%−149−0.4%Reduced
ExodusPoint Capital Management, LP33,685$6.79M0.10%−50,317−59.9%Reduced
Investment Management Corp of Ontario33,742$6.80M0.10%+11,030+48.6%Added
Aurdan Capital Management, LLC34,108$6.87M2.19%−3,962−10.4%Reduced
Franklin, Parlapiano, Turner & Welch, LLC34,468$6.95M1.76%−304−0.9%Reduced
Canada Post Corp Registered Pension Plan34,783$6.96M0.31%+19,004+120.4%Added
Lathrop Investment Management Corp34,815$7.02M1.29%−648−1.8%Reduced
Los Angeles Capital Management LLC34,874$7.03M0.02%+1,599+4.8%Added
Bleakley Financial Group, LLC35,028$7.06M0.16%+737+2.1%Added
Man Group plc36,503$7.36M0.01%−71,067−66.1%Reduced
CWM, LLC36,505$7.36M0.02%+13,840+61.1%Added
Bell Asset Management Ltd36,561$7.37M2.01%−1,234−3.3%Reduced
Mizuho Securities USA LLC35,807$7.37M0.15%+1,753+5.1%Added
Bedrijfstakpensioenfonds Voor de Media Pno43,000$7.38M0.97%00.0%Unchanged
Bennett Selby Investments LP36,877$7.43M2.46%−56−0.2%Reduced
Numerai GP LLC37,220$7.50M1.06%+33,729+966.2%Added
Marks Group Wealth Management, Inc37,237$7.50M0.70%−742−2.0%Reduced
Huntington National Bank37,369$7.53M0.05%−1,644−4.2%Reduced
Ipswich Investment Management Co., Inc.37,477$7.55M1.76%+5,206+16.1%Added
Aware Super Pty Ltd as trustee of Aware Super37,696$7.60M0.10%00.0%Unchanged
Gluskin Sheff & Assoc Inc37,938$7.65M0.97%−353−0.9%Reduced
Siemens Fonds Invest GmbH38,717$7.80M0.43%+2,953+8.3%Added
GWM Advisors LLC39,013$7.86M0.04%+7,316+23.1%Added
Builder Investment Group Inc39,106$7.88M1.77%00.0%Unchanged
Vestcor Inc39,110$7.88M0.24%−72−0.2%Reduced