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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
Baillie Gifford & Co82,361$16.6M0.01%−10,287−11.1%Reduced
Rockefeller Capital Management L.P.82,394$16.6M0.03%+3,729+4.7%Added
Northwest & Ethical Investments L.P.84,718$17.1M0.40%−412−0.5%Reduced
Y-Intercept (Hong Kong) Ltd85,818$17.3M0.41%+22,302+35.1%Added
Vancity Investment Management Ltd88,197$17.8M2.36%+286+0.3%Added
O'Shaughnessy Asset Management, LLC88,610$17.9M0.10%−5,804−6.1%Reduced
Oppenheimer Asset Management Inc.89,337$18.0M0.20%+10,248+13.0%Added
Sumitomo Mitsui DS Asset Management Company, Ltd91,586$18.5M0.15%−19,415−17.5%Reduced
IFM Investors Pty Ltd93,705$18.7M0.16%−260.0%Reduced
SG Americas Securities, LLC93,243$18.8M0.07%+79,276+567.6%Added
Deprince Race & Zollo Inc95,653$19.3M0.39%+95,653New
TD Waterhouse Canada Inc.95,890$19.3M0.13%+400.0%Added
Prudential PLC95,897$19.3M0.14%−10,405−9.8%Reduced
Skandinaviska Enskilda Banken AB (publ)95,960$19.3M0.08%−100,800−51.2%Reduced
Annex Advisory Services, LLC96,356$19.4M0.41%+22,916+31.2%Added
Sanctuary Advisors, LLC96,862$19.5M0.11%+12,753+15.2%Added
Carnegie Capital Asset Management, LLC97,020$19.6M0.37%−6,375−6.2%Reduced
Mirae Asset Global ETFs Holdings Ltd.97,728$19.7M0.03%+10,943+12.6%Added
Aptus Capital Advisors, LLC97,766$19.7M0.18%+3,081+3.3%Added
Ninety One North America, Inc.98,045$19.8M0.90%00.0%Unchanged
Crestwood Advisors Group LLC98,286$19.8M0.34%−526−0.5%Reduced
Bank Julius Baer & Co. Ltd, Zurich98,286$19.8M0.06%−392−0.4%Reduced
Amalgamated Bank98,616$19.9M0.14%−1,486−1.5%Reduced
KBC Group NV98,704$19.9M0.05%+1,865+1.9%Added
Davenport & Co LLC98,837$19.9M0.11%−4,168−4.0%Reduced
Scotia Capital Inc.100,800$20.3M0.09%−9,319−8.5%Reduced
Van Eck Associates Corp101,438$20.4M0.02%+4,629+4.8%Added
Washington Trust Co102,646$20.7M0.68%+1,561+1.5%Added
Distillate Capital Partners LLC103,284$20.8M1.08%+103,284New
Glenview Trust Co103,427$20.8M0.33%+99,530+2,554.0%Added
Retirement Systems of Alabama104,872$21.1M0.07%−858−0.8%Reduced
Dai-Ichi Life Insurance Company, Ltd104,977$21.2M0.53%+15,944+17.9%Added
Formuepleje A/S105,657$21.3M1.20%−17,814−14.4%Reduced
Creative Planning107,840$21.7M0.02%−1,889−1.7%Reduced
ProShare Advisors LLC107,984$21.8M0.05%−4,004−3.6%Reduced
Boston Family Office LLC108,928$21.9M1.40%+3,635+3.5%Added
Panagora Asset Management Inc109,279$22.0M0.09%−67,989−38.4%Reduced
Capital Fund Management S.A.109,744$22.1M0.22%+52,596+92.0%Added
Varma Mutual Pension Insurance Co110,604$22.3M0.14%+19,900+21.9%Added
Walter Public Investments Inc.113,299$22.8M3.75%+8,593+8.2%Added
Susquehanna International Group, LLP114,525$23.1M0.03%−23,171−16.8%Reduced
Coho Partners, Ltd.114,928$23.2M2.97%−84,880−42.5%Reduced
ASR Vermogensbeheer N.V.115,654$23.3M0.28%+272+0.2%Added
Gotham Asset Management, LLC115,999$23.4M0.10%+71,018+157.9%Added
DnB Asset Management AS116,642$23.5M0.09%−1,300−1.1%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys118,057$23.8M0.12%−2,787−2.3%Reduced
Alps Advisors Inc119,481$24.1M0.13%+38,280+47.1%Added
Advisor Group Holdings, Inc.120,198$24.3M0.03%+10,732+9.8%Added
Hancock Whitney Corp120,764$24.3M0.44%+8,586+7.7%Added
Quantinno Capital Management LP121,470$24.5M0.07%+26,035+27.3%Added
Choate Investment Advisors121,790$24.5M0.51%−500.0%Reduced
Swiss Life Asset Management Ltd122,894$24.8M0.13%+6,860+5.9%Added
Teachers Retirement System of the State of Kentucky123,602$24.9M0.19%00.0%Unchanged
Close Asset Management Ltd124,130$25.0M0.56%−166,226−57.2%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main124,458$25.1M0.02%−172,307−58.1%Reduced
State of Tennessee, Treasury Department124,625$25.1M0.08%−46,763−27.3%Reduced
MetLife Investment Management124,783$25.1M0.12%−3,443−2.7%Reduced
Czech National Bank124,863$25.2M0.17%+4,423+3.7%Added
J. Safra Sarasin Holding AG125,109$25.2M0.41%+123,816+9,575.9%Added
Public Sector Pension Investment Board130,015$26.2M0.10%+28,589+28.2%Added
CIBC Asset Management Inc130,463$26.3M0.08%+663+0.5%Added
Comerica Bank131,172$26.4M0.10%+1,690+1.3%Added
Badgley Phelps Wealth Managers, LLC131,484$26.5M0.56%−1,636−1.2%Reduced
EULAV Asset Management132,000$26.6M0.62%00.0%Unchanged
Cumberland Partners Ltd133,918$27.0M1.76%−1,314−1.0%Reduced
Federation des caisses Desjardins du Quebec133,963$27.0M0.11%+1,039+0.8%Added
Brown Brothers Harriman & Co136,179$27.4M0.17%+28,419+26.4%Added
Stock Yards Bank & Trust Co136,493$27.5M0.86%−790−0.6%Reduced
Cetera Investment Advisers137,330$27.7M0.03%+28,983+26.8%Added
Glenmede Investment Management, LP137,552$27.7M0.13%−260.0%Reduced
Ensign Peak Advisors, Inc138,306$27.9M0.05%+10,275+8.0%Added
State of Michigan Retirement System138,975$28.0M0.13%−1,000−0.7%Reduced
Waycross Partners, LLC139,521$28.1M2.42%+139,521New
Arizona State Retirement System143,908$29.0M0.15%−137−0.1%Reduced
Forsta Ap-Fonden144,200$29.1M0.17%−5,500−3.7%Reduced
Teacher Retirement System of Texas145,839$29.4M0.12%+6,334+4.5%Added
US Bancorp148,374$29.9M0.04%−2,652−1.8%Reduced
Nisa Investment Advisors, LLC152,759$30.8M0.12%−3,459−2.2%Reduced
Horizon Kinetics Asset Management LLC157,219$31.7M0.39%+432+0.3%Added
Lansforsakringar Fondforvaltning AB (publ)157,370$31.7M0.16%+3,829+2.5%Added
Hardman Johnston Global Advisors LLC159,985$32.2M1.58%−39,842−19.9%Reduced
Aquatic Capital Management LLC162,725$32.8M0.61%+135,882+506.2%Added
Rafferty Asset Management, LLC163,615$33.0M0.11%−211−0.1%Reduced
Fifth Third Bancorp164,318$33.1M0.11%−28,112−14.6%Reduced
Adage Capital Partners GP, L.L.C.165,061$33.3M0.05%+60,800+58.3%Added
Capital Investment Advisors, LLC167,263$33.7M0.56%+42,521+34.1%Added
Flputnam Investment Management Co167,968$33.9M0.51%−47,852−22.2%Reduced
Resona Asset Management Co.,Ltd.168,592$33.9M0.16%−10,657−5.9%Reduced
STRS Ohio172,345$34.7M0.13%+4,905+2.9%Added
State of New Jersey Common Pension Fund D172,637$34.8M0.13%+7,809+4.7%Added
Compagnie Lombard Odier SCmA173,112$34.9M0.38%−35,455−17.0%Reduced
Whittier Trust Co174,402$35.1M0.40%+4,242+2.5%Added
Temasek Holdings (Private) Ltd175,306$35.3M0.12%+31,950+22.3%Added
Boston Trust Walden Corp177,555$35.8M0.26%−15,513−8.0%Reduced
LGT Capital Partners Ltd.177,731$35.8M1.74%+14,769+9.1%Added
Janney Montgomery Scott LLC177,904$35.9M0.08%+28,040+18.7%Added
Ilmarinen Mutual Pension Insurance Co181,600$36.6M0.27%+1,100+0.6%Added
Tudor Investment Corp Et Al182,841$36.8M0.24%+86,232+89.3%Added
Capital Group Private Client Services, Inc.183,444$37.0M0.62%−565,340−75.5%Reduced
Millennium Management LLC184,135$37.1M0.03%−509,556−73.5%Reduced