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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
Central Trust Co1,332$268.4K0.01%−49−3.5%Reduced
Blalock Williams, LLC1,336$269.2K0.24%+76+6.0%Added
Farmers & Merchants Investments Inc1,337$269.4K0.01%−1−0.1%Reduced
Essential Partners LLC1,337$269.5K0.09%+1,107+481.3%Added
Onefund, LLC1,339$269.8K0.17%+47+3.6%Added
RFG Advisory, LLC1,340$270.0K0.01%−35−2.5%Reduced
Proficio Capital Partners LLC1,344$270.9K0.02%−1,940−59.1%Reduced
Drive Wealth Management, LLC1,348$271.6K0.06%−171−11.3%Reduced
Diligent Investors, LLC1,350$272.1K0.07%−75−5.3%Reduced
Rice Hall James & Associates, LLC1,350$272.1K0.01%00.0%Unchanged
Hartline Investment Corp1,352$272.5K0.03%−6,239−82.2%Reduced
Lewis Asset Management, LLC1,352$272.5K0.11%+1,352New
Mairs & Power Inc1,356$273.3K0.00%−18−1.3%Reduced
Wedbush Securities Inc1,362$274.0K0.01%−299−18.0%Reduced
Legacy Advisory Services, LLC1,362$274.4K0.21%+6+0.4%Added
Bank of New Hampshire1,370$276.1K0.06%−65−4.5%Reduced
Acorn Creek Capital LLC1,371$276.3K0.10%−46−3.2%Reduced
Clear Creek Financial Management, LLC1,377$277.5K0.02%+211+18.1%Added
Mills Wealth Advisors LLC1,378$277.7K0.11%+1,378New
Robertson Stephens Wealth Management, LLC1,379$277.9K0.01%+143+11.6%Added
Financial Advisory Service, Inc.1,389$279.8K0.02%+3+0.2%Added
Cromwell Holdings LLC1,390$280.1K0.15%00.0%Unchanged
Pointe Capital Management LLC1,392$280.5K0.14%00.0%Unchanged
Klingenstein Fields & Co LP1,395$281.1K0.01%00.0%Unchanged
Harbour Investments, Inc.1,395$281.1K0.01%−430−23.6%Reduced
Polymer Capital Management (HK) LTD1,398$281.7K0.04%+1,398New
Mitsubishi UFJ Asset Management (UK) Ltd.1,400$282.0K0.14%−1,100−44.0%Reduced
Mission Creek Capital Partners, Inc.1,400$282.1K0.06%00.0%Unchanged
Eisler Capital Management Ltd.1,431$282.8K0.01%+1,431New
Breakwater Capital Group1,408$283.8K0.04%−6−0.4%Reduced
ORG Wealth Partners, LLC1,409$284.0K0.06%+40+2.9%Added
Essex Savings Bank1,420$286.2K0.06%−42−2.9%Reduced
Main Line Retirement Advisors, LLC1,420$286.2K0.15%+1+0.1%Added
Everett Harris & Co1,423$286.8K0.00%+6+0.4%Added
Synergy Investment Management, LLC1,426$287.4K0.11%00.0%Unchanged
Caxton Associates LLP1,432$288.6K0.01%−422−22.8%Reduced
Sax Wealth Advisors, LLC1,432$288.7K0.02%−61−4.1%Reduced
Bolthouse Investments, LLC1,436$289.4K0.26%00.0%Unchanged
Parkside Financial Bank & Trust1,438$289.8K0.02%−500−25.8%Reduced
St Germain D J Co Inc1,439$290.0K0.01%−108−7.0%Reduced
111 Capital1,446$291.4K0.06%−1,960−57.5%Reduced
Fayez Sarofim & Co1,450$292.2K0.00%00.0%Unchanged
Revisor Wealth Management LLC1,415$292.8K0.10%−451−24.2%Reduced
TigerOak Management, L.L.C.1,460$294.2K0.09%00.0%Unchanged
Berkshire Asset Management LLC1,461$294.4K0.01%−783−34.9%Reduced
Headlands Technologies LLC1,465$295.2K0.02%+1,331+993.3%Added
Great Lakes Advisors, LLC1,467$295.6K0.00%−217−12.9%Reduced
Daymark Wealth Partners, LLC1,470$296.3K0.01%−244−14.2%Reduced
PFS Partners, LLC1,470$296.3K0.14%00.0%Unchanged
Riverwater Partners LLC1,473$296.9K0.12%+420+39.9%Added
National Asset Management, Inc.1,482$298.6K0.01%−736−33.2%Reduced
Colonial Trust Co1,482$298.6K0.04%−8−0.5%Reduced
Axq Capital, LP1,483$298.9K0.11%−1,859−55.6%Reduced
Drucker Wealth 3.0, LLC1,483$299.0K0.05%+135+10.0%Added
Oak Thistle LLC1,490$300.3K0.05%−12,767−89.5%Reduced
Natural Investments, LLC1,498$301.0K0.07%+1,498New
Yoffe Investment Management, LLC1,500$302.3K0.39%00.0%Unchanged
CBOE Vest Financial, LLC1,500$302.3K0.00%+530+54.6%Added
Prestige Wealth Management Group LLC1,503$303.0K0.06%+17+1.1%Added
IFC Advisors LLC1,504$303.1K0.06%−943−38.5%Reduced
VestGen Advisors, LLC1,517$305.7K0.01%+204+15.5%Added
Davis R M Inc1,518$305.9K0.01%−100−6.2%Reduced
iA Global Asset Management Inc.1,520$306.0K0.00%−180−10.6%Reduced
SlateStone Wealth, LLC1,518$306.0K0.03%+2+0.1%Added
Ignite Planners, LLC1,519$306.1K0.05%+79+5.5%Added
Johnson & White Wealth Management, LLC1,520$306.3K0.14%00.0%Unchanged
Sentry Investment Management LLC1,497$307.0K0.20%−62−4.0%Reduced
Capital Wealth Planning, LLC1,530$308.3K0.00%+130+9.3%Added
Stiles Financial Services Inc1,533$309.0K0.10%+3+0.2%Added
Bailard, Inc.1,539$310.2K0.01%+9+0.6%Added
Wesbanco Bank Inc1,540$310.4K0.01%+363+30.8%Added
Deseret Mutual Benefit Administrators1,548$312.0K0.13%00.0%Unchanged
Roble, Belko & Company, Inc1,566$316.0K0.04%00.0%Unchanged
Hudson Bay Capital Management LP1,572$316.8K0.00%−4,791−75.3%Reduced
Carret Asset Management, LLC1,580$318.4K0.03%00.0%Unchanged
Capital Management Corp1,580$318.4K0.05%00.0%Unchanged
Detalus Advisors, LLC1,580$318.4K0.08%00.0%Unchanged
Old National Bancorp1,585$319.4K0.01%+202+14.6%Added
Litman Gregory Asset Management LLC1,589$320.2K0.02%00.0%Unchanged
Global Endowment Management, LP1,592$320.8K0.04%+497+45.4%Added
TCI Wealth Advisors, Inc.1,595$321.4K0.02%+6+0.4%Added
Fisher Asset Management, LLC1,597$322.0K0.00%−121−7.0%Reduced
Rehmann Capital Advisory Group1,598$322.2K0.02%−25−1.5%Reduced
Genesis Private Wealth, LLC1,606$323.7K0.14%+295+22.5%Added
Everpar Advisors LLC1,607$323.9K0.13%−533−24.9%Reduced
Palisades Hudson Asset Management, L.P.1,607$324.0K0.12%00.0%Unchanged
Mark Sheptoff Financial Planning, LLC1,609$324.3K0.16%00.0%Unchanged
Hall Laurie J Trustee1,610$324.5K0.11%00.0%Unchanged
Tradewinds, LLC.1,617$325.9K0.08%+1,617New
Continuum Advisory, LLC1,629$328.3K0.03%−2,576−61.3%Reduced
Bellwether Advisors, LLC1,633$329.1K0.05%+20+1.2%Added
Main Street Financial Solutions, LLC1,634$329.3K0.02%+659+67.6%Added
Middleton & Co Inc1,635$329.5K0.04%+1,635New
SeaCrest Wealth Management, LLC1,610$329.6K0.03%−103−6.0%Reduced
RVW Wealth, LLC1,644$331.3K0.03%00.0%Unchanged
Tritonpoint Wealth, LLC1,647$332.0K0.03%−84−4.9%Reduced
TFR Capital, LLC.1,651$332.7K0.11%−206−11.1%Reduced
Mather Group, LLC.1,661$334.7K0.00%−470−22.1%Reduced
TFB Advisors LLC1,624$336.2K0.10%−966−37.3%Reduced
Meridian Wealth Advisors, LLC1,679$338.4K0.05%+29+1.8%Added