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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
ORG Partners LLC311$62.7K0.01%−152−32.8%Reduced
Plante Moran Financial Advisors, LLC312$62.9K0.00%+54+20.9%Added
Glen Eagle Advisors, LLC313$63.1K0.01%+29+10.2%Added
Caldwell Sutter Capital, Inc.317$63.9K0.03%+17+5.7%Added
Heritage Wealth Advisors324$65.3K0.00%−13−3.9%Reduced
Quarry LP325$65.5K0.02%−972−74.9%Reduced
Arlington Trust Co LLC327$65.9K0.01%−5−1.5%Reduced
Geneos Wealth Management Inc.328$66.1K0.00%−1,354−80.5%Reduced
Sound Income Strategies, LLC323$66.6K0.00%−33−9.3%Reduced
Dougherty Wealth Advisers LLC334$67.3K0.04%00.0%Unchanged
Silvant Capital Management LLC358$72.1K0.00%00.0%Unchanged
Raleigh Capital Management Inc.369$74.4K0.03%−16−4.2%Reduced
Aventura Private Wealth, LLC371$74.8K0.03%00.0%Unchanged
Stuart Chaussee & Associates, Inc.374$75.4K0.02%00.0%Unchanged
Cornerstone National Bank & Trust Co375$75.6K0.03%00.0%Unchanged
Kozak & Associates, Inc.427$77.2K0.02%+4+0.9%Added
DAGCO, Inc.383$77.3K0.02%+1+0.3%Added
Thurston, Springer, Miller, Herd & Titak, Inc.384$77.4K0.15%−6,481−94.4%Reduced
Minot DeBlois Advisors LLC400$80.6K0.07%−25−5.9%Reduced
Riverview Trust Co400$80.6K0.10%00.0%Unchanged
Morse Asset Management, Inc405$81.6K0.02%00.0%Unchanged
Richardson Financial Services Inc.407$82.0K0.05%−69−14.5%Reduced
New England Capital Financial Advisors LLC408$82.1K0.03%+1+0.2%Added
DHJJ Financial Advisors, Ltd.410$82.6K0.03%00.0%Unchanged
Ameriflex Group, Inc.412$83.0K0.03%+234+131.5%Added
GF Fund Management Co. Ltd.415$83.6K0.00%−3,186−88.5%Reduced
Evelyn Partners Investment Management Services Ltd420$84.6K0.01%00.0%Unchanged
Pittenger & Anderson Inc429$86.5K0.00%−50−10.4%Reduced
Employees Retirement System of Texas432$87.0K0.00%+432New
Catalyst Capital Advisors LLC434$87.5K0.00%−19−4.2%Reduced
Salomon & Ludwin, LLC442$88.9K0.01%+252+132.6%Added
Sachetta, LLC444$89.4K0.03%−41−8.5%Reduced
Islay Capital Management, LLC450$90.7K0.05%00.0%Unchanged
Hara Capital LLC453$91.3K0.05%00.0%Unchanged
Harbor Investment Advisory, LLC459$92.5K0.01%+4+0.9%Added
SBI Securities Co., Ltd.460$92.7K0.00%−45−8.9%Reduced
Jackson, Grant Investment Advisers, Inc.463$93.3K0.03%+2+0.4%Added
REAP Financial Group, LLC478$96.3K0.02%+56+13.3%Added
WPG Advisers, LLC496$100.0K0.08%−45−8.3%Reduced
True Wealth Design, LLC497$100.2K0.03%+460+1,243.2%Added
Armstrong Advisory Group, Inc529$106.6K0.01%−30−5.4%Reduced
Anchor Investment Management, LLC529$106.6K0.01%00.0%Unchanged
Manning & Napier Advisors LLC548$110.4K0.00%+548New
Mowery & Schoenfeld Wealth Management, LLC561$113.0K0.19%−21−3.6%Reduced
Johnson Financial Group, Inc.563$113.5K0.00%+38+7.2%Added
Washington Trust Advisors, Inc.589$118.7K0.01%+39+7.1%Added
BNP Paribas594$119.7K0.00%−40,807−98.6%Reduced
Park Place Capital Corp597$120.3K0.03%−11−1.8%Reduced
Towarzystwo Funduszy Inwestycyjnych Pzu SA610$122.9K0.03%00.0%Unchanged
Rosenberg Matthew Hamilton611$123.1K0.03%00.0%Unchanged
Pacific Center for Financial Services615$123.9K0.03%00.0%Unchanged
Root Financial Partners, LLC623$125.5K0.01%+623New
Quent Capital, LLC625$125.9K0.01%+625New
Bayforest Capital Ltd688$138.7K0.07%+688New
Hemington Wealth Management690$139.0K0.02%−68−9.0%Reduced
Cohen & Steers, Inc.700$141.0K0.00%00.0%Unchanged
Versant Capital Management, Inc700$141.1K0.02%−546−43.8%Reduced
Lavaca Capital LLC700$141.1K0.03%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC700$141.1K0.03%+79+12.7%Added
Bruce G. Allen Investments, LLC739$148.9K0.11%+88+13.5%Added
Ameritas Advisory Services, LLC762$153.5K0.01%+22+3.0%Added
Caitong International Asset Management Co., Ltd763$153.8K0.11%+465+156.0%Added
Walleye Capital LLC764$154.0K0.00%−3,630−82.6%Reduced
Clayton Financial Group LLC791$159.4K0.12%+791New
Independence Bank of Kentucky796$160.4K0.02%+65+8.9%Added
Sava Infond d.o.o.800$161.2K0.02%−800−50.0%Reduced
Painted Porch Advisors LLC814$164.0K0.06%00.0%Unchanged
Atlantic Trust, LLC840$169.3K0.03%+45+5.7%Added
Osterweis Capital Management Inc841$169.5K0.01%−86−9.3%Reduced
Clear Street Markets LLC847$170.7K0.06%+515+155.1%Added
First Horizon Corp896$180.6K0.01%+896New
CVA Family Office, LLC966$194.7K0.03%−223−18.8%Reduced
Bogart Wealth, LLC970$195.5K0.01%+16+1.7%Added
Ancora Advisors, LLC974$196.3K0.00%−89−8.4%Reduced
McLean Asset Management Corp994$200.2K0.04%−33−3.2%Reduced
Atala Financial Inc1,291$200.3K0.13%−911−41.4%Reduced
Chicago Trust Co NA996$200.7K0.03%+7+0.7%Added
NBC Securities, Inc.998$201.1K0.02%−34−3.3%Reduced
Unique Wealth, LLC998$201.1K0.03%−266−21.0%Reduced
Portside Wealth Group, LLC1,000$201.5K0.03%−301−23.1%Reduced
HHM Wealth Advisors, LLC1,000$201.5K0.02%−18−1.8%Reduced
Cypress Capital Group1,000$201.5K0.02%00.0%Unchanged
First Heartland Consultants, Inc.1,000$201.5K0.02%+66+7.1%Added
Carlson Capital L P1,000$201.5K0.11%+1,000New
Patton Fund Management, Inc.1,004$202.3K0.04%00.0%Unchanged
Alpha Family Trust1,005$202.5K0.09%−540−35.0%Reduced
Mitchell & Pahl Private Wealth, LLC1,006$202.7K0.09%−24−2.3%Reduced
Traub Capital Management LLC1,007$202.9K0.20%+1,007New
R. W. Roge & Company, Inc.1,009$203.0K0.10%+9+0.9%Added
Michael B. Yongue1,008$203.1K0.14%+52+5.4%Added
Sym Financial Corp1,009$203.3K0.02%+1,009New
Members Advisory Group LLC1,010$203.5K0.07%00.0%Unchanged
Dudley Capital Management, LLC1,010$203.5K0.09%00.0%Unchanged
Golden State Equity Partners1,010$203.5K0.03%+1,010New
Buck Wealth Strategies, LLC1,010$203.5K0.03%+1,010New
Associated Banc-Corp1,011$203.7K0.01%+1,011New
Members Wealth LLC1,014$204.1K0.13%+1,014New
Fiduciary Wealth Partners, LLC1,015$204.6K0.09%+1,015New
Seven Mile Advisory1,016$204.7K0.03%+1,016New
Valmark Advisers, Inc.1,017$205.0K0.00%+1,017New