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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, Q1 2026

Institutional positions in Marsh & McLennan Companies, Inc. as of Mar 31, 2026. 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
1,548
−24 vs. Q4 2025
Shares held
438.9M
+59.3M (+15.6%) vs. Q4 2025
Total value
$76.1B
+$5.70B (+8.1%) vs. Q4 2025
New holders
142
614 more added
Sold out
166
579 more reduced

22 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 1,548 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 heldQ1 2026: $76.1B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Marsh & McLennan Companies, Inc.; share changes are against Q4 2025.

Institutions holding MRSH in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Kinsale Capital Group, Inc.49,490$8.58M1.38%+3,284+7.1%Added
Kingsview Wealth Management, LLC50,446$8.75M0.12%+36,020+249.7%Added
OP Asset Management Ltd51,175$8.88M0.09%−3,358−6.2%Reduced
Mutual of America Capital Management LLC51,496$8.93M0.10%−1,113−2.1%Reduced
Candriam Luxembourg S.C.A.51,591$8.95M0.05%+2,073+4.2%Added
Azimuth Capital Investment Management LLC51,757$8.98M0.34%−396−0.8%Reduced
Flputnam Investment Management Co51,870$9.00M0.13%−48,439−48.3%Reduced
Advisor Group Holdings, Inc.52,199$9.06M0.01%+674+1.3%Added
Commonwealth Equity Services, LLC52,380$9.09M0.01%−12,277−19.0%Reduced
JLB & Associates Inc52,435$9.09M1.31%−3,606−6.4%Reduced
Allianz Asset Management GmbH53,592$9.30M0.01%+2,790+5.5%Added
MML Investors Services, LLC53,790$9.33M0.03%+8,801+19.6%Added
Wealthfront Advisers LLC53,954$9.36M0.02%+1,456+2.8%Added
Strategic Wealth Designers54,575$9.47M1.20%+1,156+2.2%Added
GWM Advisors LLC54,705$9.49M0.03%−9,794−15.2%Reduced
Formuepleje A/S54,927$9.53M0.86%−44,217−44.6%Reduced
Baker Avenue Asset Management, LP55,307$9.59M0.22%−7,263−11.6%Reduced
Andra AP-fonden55,410$9.61M0.12%+1,300+2.4%Added
Oregon Public Employees Retirement Fund55,427$9.61M0.13%−600−1.1%Reduced
Guggenheim Capital LLC57,335$9.94M0.08%−3,916−6.4%Reduced
Yousif Capital Management, LLC57,570$9.99M0.12%−2,209−3.7%Reduced
CIBC World Markets Inc.57,636$10.0M0.02%−4,456−7.2%Reduced
Washington Trust Bank57,860$10.0M0.74%−21,457−27.1%Reduced
Apollon Wealth Management, LLC57,978$10.1M0.16%+1,791+3.2%Added
Generali Asset Management SPA SGR58,491$10.1M0.21%−611−1.0%Reduced
Lido Advisors, LLC59,289$10.3M0.04%−346−0.6%Reduced
Capital International Sarl59,448$10.3M0.17%+1,349+2.3%Added
CX Institutional59,634$10.3M0.32%+18,556+45.2%Added
RMB Capital Management, LLC60,680$10.5M0.19%+5,837+10.6%Added
Gabelli Funds LLC60,700$10.5M0.07%−300−0.5%Reduced
Horizon Investments, LLC61,253$10.6M0.12%+22,998+60.1%Added
First American Bank61,022$10.6M0.66%+235+0.4%Added
Ethic Inc.61,137$10.6M0.17%−115−0.2%Reduced
Elo Mutual Pension Insurance Co61,252$10.6M0.18%−1,345−2.1%Reduced
Captrust Financial Advisors61,566$10.7M0.02%+11,544+23.1%Added
Levin Capital Strategies, L.P.61,866$10.7M0.82%−200−0.3%Reduced
Public Employees Retirement Association of Colorado62,105$10.8M0.04%−86−0.1%Reduced
Nissay Asset Management Corp62,878$10.9M0.06%+607+1.0%Added
JustInvest LLC64,071$11.1M0.11%+506+0.8%Added
Baillie Gifford & Co64,408$11.2M0.01%−22,759−26.1%Reduced
State of Alaska, Department of Revenue64,672$11.2M0.12%−1,075−1.6%Reduced
La Banque Postale Asset Management SA64,771$11.2M0.15%+35,931+124.6%Added
Hantz Financial Services, Inc.65,184$11.3M0.17%+33,470+105.5%Added
Squarepoint Ops LLC65,262$11.3M0.02%−462,224−87.6%Reduced
British Columbia Investment Management Corp67,525$11.7M0.07%−19,784−22.7%Reduced
McRae Capital Management Inc67,759$11.8M2.44%+64,825+2,209.4%Added
Atria Investments LLC67,997$11.8M0.13%−4,594−6.3%Reduced
Walter Public Investments Inc.68,686$11.9M2.85%−38,265−35.8%Reduced
Nixon Peabody Trust Co70,024$12.1M0.97%+44,249+171.7%Added
Callan Family Office, LLC70,348$12.2M0.28%−5,895−7.7%Reduced
NEOS Investment Management LLC70,360$12.2M0.06%+1,957+2.9%Added
Whittier Trust Co of Nevada Inc70,687$12.4M0.25%+4,479+6.8%Added
Bridges Investment Management Inc71,671$12.4M0.17%−2,218−3.0%Reduced
New York Life Investment Management LLC71,882$12.5M0.11%+727+1.0%Added
Brown Advisory Inc72,150$12.5M0.02%+714+1.0%Added
Foyston, Gordon, & Payne Inc72,328$12.5M2.89%+1,866+2.6%Added
Rakuten Investment Management, Inc.72,137$12.6M0.03%+7,601+11.8%Added
Rockefeller Capital Management L.P.74,696$13.0M0.02%−4,195−5.3%Reduced
Police & Firemen's Retirement System of New Jersey74,716$13.0M0.11%−328−0.4%Reduced
Vancity Investment Management Ltd75,850$13.2M2.09%−5,916−7.2%Reduced
Running Oak Capital LLC78,427$13.6M1.84%+3,682+4.9%Added
Utah Retirement Systems78,982$13.7M0.14%−2,511−3.1%Reduced
Factory Mutual Insurance Co79,400$13.8M0.15%+3,050+4.0%Added
Bank Julius Baer & Co. Ltd, Zurich79,705$13.8M0.04%−3,883−4.6%Reduced
Millennium Management LLC80,034$13.9M0.01%−644,614−89.0%Reduced
Osborne Partners Capital Management, LLC80,882$14.0M0.74%+2,066+2.6%Added
Vinva Investment Management Ltd80,474$14.1M0.18%+18,213+29.3%Added
Wesleyan Assurance Society81,926$14.2M0.84%00.0%Unchanged
EULAV Asset Management82,000$14.2M0.46%−50,000−37.9%Reduced
Capitolis Liquid Global Markets LLC82,647$14.3M0.09%+82,647New
Segment Wealth Management, LLC83,148$14.4M0.85%+5,413+7.0%Added
Lombard Odier Asset Management (Europe) Ltd84,056$14.6M0.80%+84,056New
USS Investment Management Ltd84,645$14.7M0.06%+3,271+4.0%Added
Sanctuary Advisors, LLC86,819$15.1M0.08%+159+0.2%Added
National Bank of Canada88,256$15.3M0.02%−153,404−63.5%Reduced
Amalgamated Bank89,691$15.6M0.12%−2,667−2.9%Reduced
Wiley Bros.-Aintree Capital, LLC90,202$15.6M0.08%+11,343+14.4%Added
Glenview Trust Co92,359$16.0M0.25%+25,916+39.0%Added
Daiwa Securities Group Inc.93,595$16.2M0.05%+13,618+17.0%Added
Aware Super Pty Ltd as trustee of Aware Super94,028$16.3M0.25%+94,028New
Torray LLC94,329$16.4M2.40%−3,348−3.4%Reduced
Xponance, Inc.94,647$16.4M0.12%+10,359+12.3%Added
Oppenheimer Asset Management Inc.95,968$16.6M0.19%+10,809+12.7%Added
Mercer Global Advisors Inc96,527$16.7M0.02%+31,284+47.9%Added
KBC Group NV96,704$16.8M0.04%−2,078−2.1%Reduced
Crestwood Advisors Group LLC96,736$16.8M0.28%+80.0%Added
Boston Family Office LLC97,181$16.9M1.12%−846−0.9%Reduced
IFM Investors Pty Ltd97,885$17.0M0.14%+3,194+3.4%Added
Close Asset Management Ltd98,581$17.1M0.46%−17,056−14.7%Reduced
SEB Asset Management AB98,762$17.1M0.07%+98,762New
O'Shaughnessy Asset Management, LLC100,390$17.4M0.09%+22,604+29.1%Added
AE Wealth Management LLC100,460$17.4M0.09%−212−0.2%Reduced
Mirae Asset Global Investments Co., Ltd.102,300$17.7M0.05%+13,366+15.0%Added
Retirement Systems of Alabama102,808$17.8M0.06%−1,413−1.4%Reduced
PensionDanmark Pensionsforsikringsaktieselskab103,030$17.9M0.17%+2,658+2.6%Added
Wealth Enhancement Advisory Services, LLC109,862$18.0M0.04%+23,424+27.1%Added
Prudential PLC104,375$18.1M0.14%+5,346+5.4%Added
Washington Trust Co105,507$18.3M0.62%+2,909+2.8%Added
Northwest & Ethical Investments L.P.105,579$18.3M0.42%+37,652+55.4%Added
ProShare Advisors LLC107,885$18.7M0.03%−5,579−4.9%Reduced