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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
Mediolanum International Funds Ltd19,130$3.58M0.04%−1,892−9.0%Reduced
Gamco Investors, Inc. Et Al19,347$3.59M0.03%00.0%Unchanged
Lafayette Investments, Inc.19,347$3.59M0.68%−129−0.7%Reduced
Larson Financial Group LLC19,527$3.62M0.12%−1,770−8.3%Reduced
Capital Planning Advisors, LLC19,546$3.63M0.48%−2,543−11.5%Reduced
AG2R la Mondiale Gestion D'Actifs19,682$3.65M0.16%+1,156+6.2%Added
Qsemble Capital Management, LP19,894$3.69M0.31%+19,894New
T. Rowe Price Investment Management, Inc.19,911$3.69M0.00%+6,571+49.3%Added
RBF Capital, LLC20,000$3.71M0.17%00.0%Unchanged
Burling Wealth Partners, LLC20,168$3.74M0.58%−2,166−9.7%Reduced
Town & Country Bank & Trust CO dba First Bankers Trust CO20,189$3.75M1.26%−407−2.0%Reduced
Cary Street Partners Financial LLC20,267$3.76M0.09%−2,771−12.0%Reduced
Brown, Lisle/Cummings, Inc.20,348$3.77M0.93%+10.0%Added
Banque Cantonale Vaudoise20,614$3.82M0.14%+2,774+15.5%Added
Morton Community Bank20,432$3.85M0.83%+995+5.1%Added
Tower Research Capital LLC (TRC)20,758$3.85M0.09%+13,286+177.8%Added
Machina Capital S.A.S.21,016$3.90M0.74%+6,876+48.6%Added
Agf Management Ltd21,064$3.91M0.02%+548+2.7%Added
NBT Bank N A21,214$3.91M0.25%−1,885−8.2%Reduced
Natixis21,256$3.94M0.02%−325,079−93.9%Reduced
Moneta Group Investment Advisors LLC22,064$4.09M0.03%−474−2.1%Reduced
Capital International Ltd22,073$4.09M0.14%−3,572−13.9%Reduced
Quest Partners LLC22,134$4.11M0.23%+14,048+173.7%Added
BNC Wealth Management, LLC22,170$4.11M1.05%−113−0.5%Reduced
Edmond de Rothschild Holding S.A.22,340$4.14M0.06%−26,265−54.0%Reduced
Keybank National Association22,416$4.16M0.01%+162+0.7%Added
ING Groep NV22,613$4.20M0.03%−409−1.8%Reduced
New Mexico Educational Retirement Board22,641$4.20M0.13%+400+1.8%Added
Diversified Trust Co23,002$4.27M0.08%−74−0.3%Reduced
Occidental Asset Management, LLC23,178$4.30M0.52%+1,572+7.3%Added
Meiji Yasuda Asset Management Co Ltd.23,227$4.31M0.21%+3,664+18.7%Added
Ci Investments Inc.23,231$4.31M0.02%+9,680+71.4%Added
Exencial Wealth Advisors, LLC23,397$4.34M0.14%−187−0.8%Reduced
FineMark National Bank & Trust23,450$4.35M0.14%−2,416−9.3%Reduced
QRG Capital Management, Inc.23,730$4.40M0.05%+929+4.1%Added
Merit Financial Group, LLC23,754$4.41M0.04%+1,218+5.4%Added
Boston Private Wealth LLC23,796$4.41M0.26%−3,941−14.2%Reduced
Conning Inc.23,938$4.44M0.15%+3,476+17.0%Added
Commerce Bank24,081$4.47M0.02%+235+1.0%Added
ISAM Funds (UK) Ltd24,119$4.47M1.61%+24,119New
Concurrent Investment Advisors, LLC24,202$4.49M0.05%+10,022+70.7%Added
Magnetar Financial LLC24,579$4.56M0.04%+24,579New
Maryland State Retirement & Pension System24,609$4.57M0.09%00.0%Unchanged
Gulf International Bank (UK) Ltd24,654$4.57M0.15%00.0%Unchanged
Te Ahumairangi Investment Management Ltd24,687$4.58M0.82%+1,580+6.8%Added
Harrington Investments, INC24,981$4.63M2.33%+605+2.5%Added
Louisiana State Employees Retirement System25,000$4.64M0.08%−800−3.1%Reduced
Annandale Capital, LLC21,380$4.65M0.76%+15,141+242.7%Added
Bonness Enterprises Inc25,300$4.69M1.62%00.0%Unchanged
Crossmark Global Holdings, Inc.25,746$4.78M0.07%−2,238−8.0%Reduced
Nixon Peabody Trust Co25,775$4.78M0.36%−46,609−64.4%Reduced
Bridgewater Associates, LP25,777$4.78M0.02%−36,290−58.5%Reduced
Schaper Benz & Wise Investment Counsel Inc25,967$4.82M0.35%+297+1.2%Added
First National Bank of Mount Dora, Trust Investment Services26,281$4.88M1.07%+323+1.2%Added
Snowden Capital Advisors LLC26,520$4.92M0.13%−2,205−7.7%Reduced
BI Asset Management Fondsmaeglerselskab A/S26,527$4.92M0.04%+340+1.3%Added
Metis Global Partners, LLC26,546$4.92M0.12%−2,718−9.3%Reduced
Landscape Capital Management, L.L.C.26,614$4.94M0.33%+12,946+94.7%Added
Zions Bancorporation, National Association26,699$4.95M0.23%+2,162+8.8%Added
Tower View Investment Management & Research LLC26,989$5.01M2.48%−4,064−13.1%Reduced
Aviso Financial Inc.27,083$5.02M0.19%+1,369+5.3%Added
Steward Partners Investment Advisory, LLC27,233$5.05M0.03%−17,766−39.5%Reduced
Pinnacle Financial Partners, Inc.27,274$5.06M0.04%+27,274New
Twinbeech Capital LP27,337$5.07M0.36%+17,076+166.4%Added
JB Capital LLC27,414$5.09M0.21%+6,672+32.2%Added
Norinchukin Bank, The27,587$5.12M0.06%+1,216+4.6%Added
Vestcor Inc27,888$5.17M0.15%−11,222−28.7%Reduced
Hartford Investment Management Co28,352$5.26M0.16%−537−1.9%Reduced
Parcion Private Wealth LLC28,480$5.28M0.32%+450+1.6%Added
Panagora Asset Management Inc28,630$5.31M0.02%−80,649−73.8%Reduced
La Banque Postale Asset Management SA28,840$5.35M0.06%+28,840New
1832 Asset Management L.P.28,900$5.36M0.01%+13,291+85.1%Added
Erste Asset Management GmbH28,657$5.36M0.05%+291+1.0%Added
Schonfeld Strategic Advisors LLC29,323$5.44M0.03%−25,120−46.1%Reduced
Capitolis Liquid Global Markets LLC29,800$5.53M0.03%00.0%Unchanged
First Manhattan Co30,282$5.62M0.01%+1,203+4.1%Added
Dai-Ichi Life Insurance Company, Ltd30,428$5.65M0.15%−74,549−71.0%Reduced
Kentucky Retirement Systems30,987$5.75M0.16%00.0%Unchanged
Y-Intercept (Hong Kong) Ltd31,018$5.75M0.13%−54,800−63.9%Reduced
Lathrop Investment Management Corp31,029$5.76M1.04%−3,786−10.9%Reduced
Hantz Financial Services, Inc.31,714$5.88M0.09%+3,320+11.7%Added
Los Angeles Capital Management LLC33,017$5.90M0.02%−1,857−5.3%Reduced
Cape Cod Five Cents Savings Bank26,703$5.96M0.55%00.0%Unchanged
Hamilton Capital Partners Inc.32,391$6.01M0.22%+4,664+16.8%Added
Bell Asset Management Ltd32,325$6.04M1.61%−4,236−11.6%Reduced
Hudson Valley Investment Advisors Inc32,697$6.07M0.67%−14,375−30.5%Reduced
Intech Investment Management LLC32,805$6.09M0.05%+272+0.8%Added
Auxier Asset Management33,115$6.14M0.86%−500−1.5%Reduced
Siemens Fonds Invest GmbH33,224$6.22M0.33%−5,493−14.2%Reduced
M&G Plc33,706$6.27M0.03%+6,135+22.3%Added
Advisors Asset Management, Inc.33,983$6.30M0.11%+3,905+13.0%Added
Marks Group Wealth Management, Inc34,037$6.31M0.60%−3,200−8.6%Reduced
M&T Bank Corp34,279$6.36M0.02%+3,614+11.8%Added
Aurdan Capital Management, LLC34,298$6.36M1.96%+190+0.6%Added
New Vernon Investment Management LLC34,442$6.39M6.22%+17,221+100.0%Added
Canada Post Corp Registered Pension Plan35,258$6.54M0.25%+475+1.4%Added
Mizuho Securities USA LLC35,672$6.54M0.11%−135−0.4%Reduced
Benjamin Edwards Inc35,293$6.55M0.07%+7,418+26.6%Added
Franklin, Parlapiano, Turner & Welch, LLC36,169$6.60M1.64%+1,701+4.9%Added
Gluskin Sheff & Assoc Inc35,639$6.61M0.92%−2,299−6.1%Reduced