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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
TD Asset Management Inc981,977$197.9M0.16%+56,442+6.1%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.1,002,026$201.9M0.15%+44,670+4.7%Added
AQR Capital Management LLC1,032,461$206.8M0.13%+602,056+139.9%Added
National Pension Service1,037,834$209.2M0.16%+22,347+2.2%Added
Raymond James Financial Inc1,042,536$210.1M0.07%+114,028+12.3%Added
Findlay Park Partners LLP1,065,967$214.8M2.26%+180,200+20.3%Added
HSBC Holdings PLC1,084,774$218.4M0.13%−145,640−11.8%Reduced
Swedbank AB1,093,014$220.3M0.22%+196,355+21.9%Added
Two Sigma Investments, LP1,100,141$221.7M0.34%+106,857+10.8%Added
Renaissance Technologies LLC1,120,300$225.8M0.30%+146,369+15.0%Added
First Trust Advisors LP1,157,404$233.3M0.17%−14,994−1.3%Reduced
DekaBank Deutsche Girozentrale1,193,291$237.4M0.40%00.0%Unchanged
Alliancebernstein L.P.1,191,361$240.1M0.08%−87,962−6.9%Reduced
Sumitomo Mitsui Trust Holdings, Inc.1,217,043$245.3M0.14%+27,530+2.3%Added
American Century Companies Inc1,260,479$254.0M0.13%+155,526+14.1%Added
Rathbone Brothers plc1,264,247$254.8M1.03%+273,303+27.6%Added
Qube Research & Technologies Ltd1,277,357$257.4M0.36%−5,223−0.4%Reduced
Envestnet Asset Management Inc1,296,472$261.3M0.08%+26,148+2.1%Added
Two Sigma Advisers, LP1,309,700$263.9M0.53%+879,300+204.3%Added
Nippon Life Insurance Co1,311,350$264.3M4.45%−1,311,350−50.0%Reduced
BNP Paribas Arbitrage, SA1,319,258$265.9M0.21%+812,199+160.2%Added
Ninety One UK Ltd1,346,803$271.4M0.59%−1,180,941−46.7%Reduced
Voloridge Investment Management, LLC1,379,436$278.0M0.93%+666,023+93.4%Added
FIL Ltd1,384,659$279.1M0.22%+179,926+14.9%Added
Great West Life Assurance Co1,396,745$279.4M0.40%+210,137+17.7%Added
Arrowstreet Capital, Limited Partnership1,419,104$286.0M0.18%+1,231,059+654.7%Added
Swiss National Bank1,420,300$286.2M0.17%−71,300−4.8%Reduced
Robeco Institutional Asset Management B.V.1,476,821$297.6M0.43%−412,472−21.8%Reduced
Amundi1,478,297$297.6M0.10%−1,414,279−48.9%Reduced
California Public Employees Retirement System1,514,767$305.3M0.18%−307,485−16.9%Reduced
Franklin Resources Inc1,549,969$312.4M0.08%+28,536+1.9%Added
Waverton Investment Management Ltd1,560,628$314.6M4.05%+268,488+20.8%Added
Veritas Investment Partners (UK) Ltd.1,623,960$327.3M6.27%+105,954+7.0%Added
Janus Henderson Group PLC1,690,699$340.7M0.16%−164,232−8.9%Reduced
Ako Capital LLP1,799,753$362.7M5.16%+17,553+1.0%Added
Primecap Management Co1,821,016$367.0M0.28%−141,810−7.2%Reduced
Bahl & Gaynor Inc1,846,515$372.1M1.85%−86,803−4.5%Reduced
Dimensional Fund Advisors LP2,023,475$407.8M0.09%+3,019+0.1%Added
Longview Partners (Guernsey) LTD2,088,995$421.0M4.40%−180,221−7.9%Reduced
Mackenzie Financial Corp2,102,286$423.7M0.51%−182,908−8.0%Reduced
Barclays PLC2,202,372$443.8M0.16%+647,987+41.7%Added
Royal Bank of Canada2,256,873$454.8M0.08%−565,341−20.0%Reduced
Stifel Financial Corp2,294,938$462.5M0.42%+39,794+1.8%Added
Jensen Investment Management Inc2,406,645$485.0M6.02%−16,992−0.7%Reduced
D. E. Shaw & Co., Inc.2,576,666$519.3M0.42%+1,372,137+113.9%Added
Parnassus Investments2,586,704$521.3M1.20%−72,780−2.7%Reduced
Wells Fargo & Company2,668,112$537.7M0.11%−895,838−25.1%Reduced
Lazard Asset Management LLC2,763,189$556.9M0.75%+169,898+6.6%Added
Charles Schwab Investment Management Inc2,905,513$585.5M0.09%+3,915+0.1%Added
Bank of New York Mellon Corp3,065,069$617.7M0.11%−11,805−0.4%Reduced
Legal & General Group Plc3,196,714$644.2M0.14%+41,613+1.3%Added
Deutsche Bank AG3,288,422$662.7M0.22%+133,910+4.2%Added
Invesco Ltd.3,293,188$663.7M0.10%+753,828+29.7%Added
Artisan Partners Limited Partnership3,437,011$692.7M1.00%−6,443−0.2%Reduced
Nuveen, LLC3,850,181$775.9M0.20%−266,686−6.5%Reduced
UBS Group AG4,255,370$857.6M0.17%−284,339−6.3%Reduced
Clearbridge Investments, LLC4,517,111$910.3M0.69%+1,954,137+76.2%Added
UBS Asset Management Americas Inc4,543,833$915.7M0.20%−1,163,107−20.4%Reduced
Mawer Investment Management Ltd.4,572,623$921.5M4.79%−802,248−14.9%Reduced
JPMorgan Chase & Co4,872,982$982.1M0.06%+421,029+9.5%Added
Goldman Sachs Group Inc5,221,331$1.05B0.15%+621,516+13.5%Added
Northern Trust Corp5,623,907$1.13B0.14%−103,269−1.8%Reduced
Ameriprise Financial Inc5,767,988$1.16B0.27%−1,074,347−15.7%Reduced
Bank of America Corp6,405,611$1.29B0.10%−213,524−3.2%Reduced
Morgan Stanley7,052,786$1.42B0.09%+558,492+8.6%Added
Price T Rowe Associates Inc8,349,764$1.68B0.18%−1,693,073−16.9%Reduced
Massachusetts Financial Services Co9,474,359$1.91B0.59%−201,804−2.1%Reduced
Capital Research Global Investors9,861,067$1.99B0.37%+68,826+0.7%Added
Geode Capital Management, LLC12,967,908$2.61B0.17%+283,698+2.2%Added
Wellington Management Group LLP15,091,478$3.04B0.53%+1,260,434+9.1%Added
FMR LLC16,455,084$3.32B0.17%−3,581,890−17.9%Reduced
Capital World Investors17,702,898$3.57B0.49%+92,767+0.5%Added
Capital International Investors18,590,697$3.75B0.60%+221,033+1.2%Added
State Street Corp21,538,014$4.34B0.15%+96,436+0.4%Added
BlackRock, Inc.38,785,634$7.82B0.14%−1,487,894−3.7%Reduced
Vanguard Group Inc46,202,533$9.31B0.14%+43,971+0.1%Added
Cubist Systematic Strategies, LLC0$00.00%−257,151−100.0%Sold out
Susquehanna Portfolio Strategies, LLC0$00.00%−197,642−100.0%Sold out
AXA S.A.0$00.00%−189,785−100.0%Sold out
Dundas Partners LLP0$00.00%−187,494−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−167,460−100.0%Sold out
Railway Pension Investments Ltd0$00.00%−102,800−100.0%Sold out
Kames Capital plc0$00.00%−89,793−100.0%Sold out
Nearwater Capital Markets, Ltd0$00.00%−70,519−100.0%Sold out
Sawgrass Asset Management LLC0$00.00%−48,783−100.0%Sold out
Sone Capital Management, LLC0$00.00%−46,853−100.0%Sold out
Point72 Hong Kong Ltd0$00.00%−44,354−100.0%Sold out
Groupe la Francaise0$00.00%−37,416−100.0%Sold out
Qsemble Capital Management, LP0$00.00%−35,910−100.0%Sold out
Point72 (DIFC) Ltd0$00.00%−26,406−100.0%Sold out
MinichMacGregor Wealth Management, LLC0$00.00%−23,327−100.0%Sold out
Algert Global LLC0$00.00%−16,113−100.0%Sold out
Centiva Capital, LP0$00.00%−15,560−100.0%Sold out
Red Cedar Investment Management, LLC0$00.00%−13,578−100.0%Sold out
Moran Wealth Management, LLC0$00.00%−13,566−100.0%Sold out
Drake & Associates, LLC0$00.00%−12,391−100.0%Sold out
Prescott Group Capital Management, L.L.C.0$00.00%−11,895−100.0%Sold out
HRT Financial LP0$00.00%−11,820−100.0%Sold out
Soundwatch Capital LLC0$00.00%−2,565,037−100.0%Sold out
TCW Group Inc0$00.00%−11,594−100.0%Sold out