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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, Q4 2025

Institutional positions in Marsh & McLennan Companies, Inc. as of Dec 31, 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
1,594
+51 vs. Q3 2025
Shares held
435.8M
+3.70M (+0.9%) vs. Q3 2025
Total value
$80.9B
−$6.18B (−7.1%) vs. Q3 2025
New holders
219
527 more added
Sold out
168
644 more reduced

33 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 1,594 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 heldQ4 2025: $80.9B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Marsh & McLennan Companies, Inc.; share changes are against Q3 2025.

Institutions holding MRSH in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Neuberger Berman Group LLC76,170$14.1M0.01%−3,518−4.4%Reduced
Callan Family Office, LLC76,243$14.1M0.30%+13,214+21.0%Added
Factory Mutual Insurance Co76,350$14.2M0.14%−3,050−3.8%Reduced
Segment Wealth Management, LLC77,735$14.4M0.84%−1,233−1.6%Reduced
O'Shaughnessy Asset Management, LLC77,786$14.4M0.08%−10,824−12.2%Reduced
Wiley Bros.-Aintree Capital, LLC78,859$14.6M0.08%+6,997+9.7%Added
Osborne Partners Capital Management, LLC78,816$14.6M0.75%+1,454+1.9%Added
Rockefeller Capital Management L.P.78,891$14.6M0.03%−3,503−4.3%Reduced
Entropy Technologies, LP79,288$14.7M0.80%+18,859+31.2%Added
Washington Trust Bank79,317$14.7M1.03%+929+1.2%Added
Ieq Capital, LLC79,608$14.8M0.04%+50,838+176.7%Added
USS Investment Management Ltd81,374$15.1M0.08%+182+0.2%Added
Utah Retirement Systems81,493$15.1M0.14%−66−0.1%Reduced
Vancity Investment Management Ltd81,766$15.2M2.06%−6,431−7.3%Reduced
Wesleyan Assurance Society81,926$15.2M0.88%00.0%Unchanged
Bank Julius Baer & Co. Ltd, Zurich83,588$15.5M0.04%−14,698−15.0%Reduced
Woodline Partners LP83,626$15.5M0.06%+18,652+28.7%Added
Xponance, Inc.84,288$15.6M0.12%+4,290+5.4%Added
Aquatic Capital Management LLC84,897$15.8M0.45%−77,828−47.8%Reduced
Oppenheimer Asset Management Inc.85,159$15.8M0.19%−4,178−4.7%Reduced
Wealth Enhancement Advisory Services, LLC86,438$16.0M0.02%−104,960−54.8%Reduced
Sanctuary Advisors, LLC86,660$16.1M0.09%−10,202−10.5%Reduced
Baillie Gifford & Co87,167$16.2M0.01%+4,806+5.8%Added
British Columbia Investment Management Corp87,309$16.2M0.09%+16,418+23.2%Added
Mirae Asset Global Investments Co., Ltd.88,934$16.5M0.05%+15,166+20.6%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main91,065$16.9M0.01%−33,393−26.8%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd92,031$17.1M0.13%+445+0.5%Added
Amalgamated Bank92,358$17.1M0.12%−6,258−6.3%Reduced
Skandinaviska Enskilda Banken AB (publ)94,170$17.5M0.07%−1,790−1.9%Reduced
IFM Investors Pty Ltd94,691$17.6M0.15%+986+1.1%Added
Crestwood Advisors Group LLC96,728$17.9M0.30%−1,558−1.6%Reduced
Torray LLC97,677$18.1M2.59%+27,662+39.5%Added
Scotia Capital Inc.97,728$18.1M0.07%−3,072−3.0%Reduced
Boston Family Office LLC98,027$18.2M1.15%−10,901−10.0%Reduced
KBC Group NV98,782$18.3M0.04%+78+0.1%Added
Prudential PLC99,029$18.4M0.15%+3,132+3.3%Added
Formuepleje A/S99,144$18.4M1.10%−6,513−6.2%Reduced
Flputnam Investment Management Co100,309$18.6M0.27%−67,659−40.3%Reduced
PensionDanmark Pensionsforsikringsaktieselskab100,372$18.6M0.17%+100,372New
AE Wealth Management LLC100,672$18.7M0.11%+94,410+1,507.7%Added
Aptus Capital Advisors, LLC100,882$18.7M0.16%+3,116+3.2%Added
Trexquant Investment LP101,677$18.9M0.17%+96,225+1,764.9%Added
Quantbot Technologies LP102,158$19.0M0.63%+24,093+30.9%Added
Distillate Capital Partners LLC102,346$19.0M0.98%−938−0.9%Reduced
Marshall Wace, LLP102,435$19.0M0.02%+102,435New
Washington Trust Co102,598$19.0M0.62%−480.0%Reduced
Retirement Systems of Alabama104,221$19.3M0.06%−651−0.6%Reduced
Van Eck Associates Corp106,411$19.7M0.02%+4,973+4.9%Added
Walter Public Investments Inc.106,951$19.8M3.51%−6,348−5.6%Reduced
Credit Agricole S A109,079$20.2M0.06%−290,474−72.7%Reduced
Mirae Asset Global ETFs Holdings Ltd.111,016$20.3M0.03%+13,288+13.6%Added
SG Americas Securities, LLC110,441$20.5M0.03%+17,198+18.4%Added
ProShare Advisors LLC113,464$21.0M0.04%+5,480+5.1%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys113,956$21.1M0.11%−4,101−3.5%Reduced
Deprince Race & Zollo Inc114,498$21.2M0.41%+18,845+19.7%Added
Close Asset Management Ltd115,637$21.5M0.48%−8,493−6.8%Reduced
Toroso Investments, LLC115,910$21.5M0.09%+98,867+580.1%Added
DnB Asset Management AS119,088$22.1M0.08%+2,446+2.1%Added
MetLife Investment Management120,322$22.3M0.11%−4,461−3.6%Reduced
Creative Planning120,547$22.4M0.02%+12,707+11.8%Added
Choate Investment Advisors121,790$22.6M0.44%00.0%Unchanged
Brown Brothers Harriman & Co122,804$22.8M0.12%−13,375−9.8%Reduced
Comerica Bank123,365$22.9M0.09%−7,807−6.0%Reduced
Teachers Retirement System of the State of Kentucky123,602$22.9M0.17%00.0%Unchanged
J. Safra Sarasin Holding AG123,955$23.0M0.37%−1,154−0.9%Reduced
Public Sector Pension Investment Board124,804$23.2M0.08%−5,211−4.0%Reduced
ASR Vermogensbeheer N.V.126,320$23.4M0.27%+10,666+9.2%Added
Badgley Phelps Wealth Managers, LLC126,911$23.5M0.43%−4,573−3.5%Reduced
Varma Mutual Pension Insurance Co127,104$23.6M0.14%+16,500+14.9%Added
Czech National Bank129,182$24.0M0.16%+4,319+3.5%Added
Calamos Advisors LLC131,672$24.4M0.10%−136,084−50.8%Reduced
Forsta Ap-Fonden131,700$24.4M0.15%−12,500−8.7%Reduced
Capital Fund Management S.A.131,888$24.5M0.23%+22,144+20.2%Added
EULAV Asset Management132,000$24.5M0.65%00.0%Unchanged
State of Michigan Retirement System132,575$24.6M0.12%−6,400−4.6%Reduced
Stock Yards Bank & Trust Co133,179$24.7M0.76%−3,314−2.4%Reduced
Swiss Life Asset Management Ltd134,542$25.0M0.13%+11,648+9.5%Added
Fifth Third Bancorp134,772$25.0M0.08%−29,546−18.0%Reduced
Arizona State Retirement System138,852$25.8M0.14%−5,056−3.5%Reduced
Banco Santander, S.A.139,648$25.9M0.19%+134,401+2,561.5%Added
Colony Group, LLC140,191$26.0M0.03%+71,939+105.4%Added
Cetera Investment Advisers140,844$26.1M0.03%+3,514+2.6%Added
US Bancorp142,856$26.5M0.03%−5,518−3.7%Reduced
Hardman Johnston Global Advisors LLC143,970$26.7M1.27%−16,015−10.0%Reduced
Glenmede Trust Co NA144,482$26.8M0.13%+144,482New
Federation des caisses Desjardins du Quebec146,860$27.2M0.10%+12,897+9.6%Added
Jump Financial, LLC147,887$27.4M0.34%+84,952+135.0%Added
Voya Investment Management LLC148,809$27.6M0.03%−65,759−30.6%Reduced
Rafferty Asset Management, LLC149,456$27.7M0.10%−14,159−8.7%Reduced
State of Tennessee, Treasury Department150,454$28.3M0.09%+25,829+20.7%Added
Horizon Kinetics Asset Management LLC156,685$29.1M0.39%−534−0.3%Reduced
Quantinno Capital Management LP157,063$29.1M0.06%+35,593+29.3%Added
Nisa Investment Advisors, LLC157,563$29.2M0.10%+4,804+3.1%Added
Lansforsakringar Fondforvaltning AB (publ)158,816$29.5M0.15%+1,446+0.9%Added
Capital Investment Advisors, LLC159,662$29.6M0.45%−7,601−4.5%Reduced
Kayne Anderson Rudnick Investment Management LLC161,520$30.0M0.08%−81,369−33.5%Reduced
Resona Asset Management Co.,Ltd.162,466$30.2M0.15%−6,126−3.6%Reduced
Waycross Partners, LLC166,998$31.0M2.53%+27,477+19.7%Added
State of New Jersey Common Pension Fund D169,850$31.5M0.11%−2,787−1.6%Reduced
Janney Montgomery Scott LLC171,705$31.9M0.07%−6,199−3.5%Reduced