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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,506 | $73.1B |
| Q1 2026 | 1,548 | $76.1B |
| Q4 2025 | 1,594 | $80.9B |
| Q3 2025 | 1,576 | $87.2B |
| Q2 2025 | 1,610 | $97.3B |
| Q1 2025 | 1,627 | $108.0B |
| Q4 2024 | 1,578 | $94.2B |
| Q3 2024 | 1,531 | $97.1B |
| Q2 2024 | 1,476 | $92.3B |
| Q1 2024 | 1,444 | $89.9B |
| Q4 2023 | 1,376 | $82.4B |
| Q3 2023 | 1,294 | $82.0B |
| Q2 2023 | 1,258 | $81.5B |
| Q1 2023 | 1,228 | $72.1B |
| Q4 2022 | 1,223 | $72.3B |
| Q3 2022 | 1,159 | $65.5B |
| Q2 2022 | 1,150 | $68.6B |
| Q1 2022 | 1,151 | $75.2B |
| Q4 2021 | 1,170 | $77.6B |
| Q3 2021 | 1,078 | $68.0B |
| Q2 2021 | 1,007 | $63.6B |
| Q1 2021 | 979 | $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.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 46,202,533 | $9.31B | 0.14% | +43,971+0.1% | Added |
| BlackRock, Inc. | 38,785,634 | $7.82B | 0.14% | −1,487,894−3.7% | Reduced |
| State Street Corp | 21,538,014 | $4.34B | 0.15% | +96,436+0.4% | Added |
| Capital International Investors | 18,590,697 | $3.75B | 0.60% | +221,033+1.2% | Added |
| Capital World Investors | 17,702,898 | $3.57B | 0.49% | +92,767+0.5% | Added |
| FMR LLC | 16,455,084 | $3.32B | 0.17% | −3,581,890−17.9% | Reduced |
| Wellington Management Group LLP | 15,091,478 | $3.04B | 0.53% | +1,260,434+9.1% | Added |
| Geode Capital Management, LLC | 12,967,908 | $2.61B | 0.17% | +283,698+2.2% | Added |
| Capital Research Global Investors | 9,861,067 | $1.99B | 0.37% | +68,826+0.7% | Added |
| Massachusetts Financial Services Co | 9,474,359 | $1.91B | 0.59% | −201,804−2.1% | Reduced |
| Price T Rowe Associates Inc | 8,349,764 | $1.68B | 0.18% | −1,693,073−16.9% | Reduced |
| Morgan Stanley | 7,052,786 | $1.42B | 0.09% | +558,492+8.6% | Added |
| Bank of America Corp | 6,405,611 | $1.29B | 0.10% | −213,524−3.2% | Reduced |
| Ameriprise Financial Inc | 5,767,988 | $1.16B | 0.27% | −1,074,347−15.7% | Reduced |
| Northern Trust Corp | 5,623,907 | $1.13B | 0.14% | −103,269−1.8% | Reduced |
| Goldman Sachs Group Inc | 5,221,331 | $1.05B | 0.15% | +621,516+13.5% | Added |
| JPMorgan Chase & Co | 4,872,982 | $982.1M | 0.06% | +421,029+9.5% | Added |
| Mawer Investment Management Ltd. | 4,572,623 | $921.5M | 4.79% | −802,248−14.9% | Reduced |
| UBS Asset Management Americas Inc | 4,543,833 | $915.7M | 0.20% | −1,163,107−20.4% | Reduced |
| Clearbridge Investments, LLC | 4,517,111 | $910.3M | 0.69% | +1,954,137+76.2% | Added |
| UBS Group AG | 4,255,370 | $857.6M | 0.17% | −284,339−6.3% | Reduced |
| Nuveen, LLC | 3,850,181 | $775.9M | 0.20% | −266,686−6.5% | Reduced |
| Artisan Partners Limited Partnership | 3,437,011 | $692.7M | 1.00% | −6,443−0.2% | Reduced |
| Invesco Ltd. | 3,293,188 | $663.7M | 0.10% | +753,828+29.7% | Added |
| Deutsche Bank AG | 3,288,422 | $662.7M | 0.22% | +133,910+4.2% | Added |
| Legal & General Group Plc | 3,196,714 | $644.2M | 0.14% | +41,613+1.3% | Added |
| Bank of New York Mellon Corp | 3,065,069 | $617.7M | 0.11% | −11,805−0.4% | Reduced |
| Charles Schwab Investment Management Inc | 2,905,513 | $585.5M | 0.09% | +3,915+0.1% | Added |
| Lazard Asset Management LLC | 2,763,189 | $556.9M | 0.75% | +169,898+6.6% | Added |
| Wells Fargo & Company | 2,668,112 | $537.7M | 0.11% | −895,838−25.1% | Reduced |
| Parnassus Investments | 2,586,704 | $521.3M | 1.20% | −72,780−2.7% | Reduced |
| D. E. Shaw & Co., Inc. | 2,576,666 | $519.3M | 0.42% | +1,372,137+113.9% | Added |
| Jensen Investment Management Inc | 2,406,645 | $485.0M | 6.02% | −16,992−0.7% | Reduced |
| Stifel Financial Corp | 2,294,938 | $462.5M | 0.42% | +39,794+1.8% | Added |
| Royal Bank of Canada | 2,256,873 | $454.8M | 0.08% | −565,341−20.0% | Reduced |
| Barclays PLC | 2,202,372 | $443.8M | 0.16% | +647,987+41.7% | Added |
| Mackenzie Financial Corp | 2,102,286 | $423.7M | 0.51% | −182,908−8.0% | Reduced |
| Longview Partners (Guernsey) LTD | 2,088,995 | $421.0M | 4.40% | −180,221−7.9% | Reduced |
| Dimensional Fund Advisors LP | 2,023,475 | $407.8M | 0.09% | +3,019+0.1% | Added |
| Bahl & Gaynor Inc | 1,846,515 | $372.1M | 1.85% | −86,803−4.5% | Reduced |
| Primecap Management Co | 1,821,016 | $367.0M | 0.28% | −141,810−7.2% | Reduced |
| Ako Capital LLP | 1,799,753 | $362.7M | 5.16% | +17,553+1.0% | Added |
| Janus Henderson Group PLC | 1,690,699 | $340.7M | 0.16% | −164,232−8.9% | Reduced |
| Veritas Investment Partners (UK) Ltd. | 1,623,960 | $327.3M | 6.27% | +105,954+7.0% | Added |
| Waverton Investment Management Ltd | 1,560,628 | $314.6M | 4.05% | +268,488+20.8% | Added |
| Franklin Resources Inc | 1,549,969 | $312.4M | 0.08% | +28,536+1.9% | Added |
| California Public Employees Retirement System | 1,514,767 | $305.3M | 0.18% | −307,485−16.9% | Reduced |
| Amundi | 1,478,297 | $297.6M | 0.10% | −1,414,279−48.9% | Reduced |
| Robeco Institutional Asset Management B.V. | 1,476,821 | $297.6M | 0.43% | −412,472−21.8% | Reduced |
| Swiss National Bank | 1,420,300 | $286.2M | 0.17% | −71,300−4.8% | Reduced |
| Arrowstreet Capital, Limited Partnership | 1,419,104 | $286.0M | 0.18% | +1,231,059+654.7% | Added |
| Great West Life Assurance Co | 1,396,745 | $279.4M | 0.40% | +210,137+17.7% | Added |
| FIL Ltd | 1,384,659 | $279.1M | 0.22% | +179,926+14.9% | Added |
| Voloridge Investment Management, LLC | 1,379,436 | $278.0M | 0.93% | +666,023+93.4% | Added |
| Ninety One UK Ltd | 1,346,803 | $271.4M | 0.59% | −1,180,941−46.7% | Reduced |
| BNP Paribas Arbitrage, SA | 1,319,258 | $265.9M | 0.21% | +812,199+160.2% | Added |
| Nippon Life Insurance Co | 1,311,350 | $264.3M | 4.45% | −1,311,350−50.0% | Reduced |
| Two Sigma Advisers, LP | 1,309,700 | $263.9M | 0.53% | +879,300+204.3% | Added |
| Envestnet Asset Management Inc | 1,296,472 | $261.3M | 0.08% | +26,148+2.1% | Added |
| Qube Research & Technologies Ltd | 1,277,357 | $257.4M | 0.36% | −5,223−0.4% | Reduced |
| Rathbone Brothers plc | 1,264,247 | $254.8M | 1.03% | +273,303+27.6% | Added |
| American Century Companies Inc | 1,260,479 | $254.0M | 0.13% | +155,526+14.1% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,217,043 | $245.3M | 0.14% | +27,530+2.3% | Added |
| Alliancebernstein L.P. | 1,191,361 | $240.1M | 0.08% | −87,962−6.9% | Reduced |
| DekaBank Deutsche Girozentrale | 1,193,291 | $237.4M | 0.40% | 00.0% | Unchanged |
| First Trust Advisors LP | 1,157,404 | $233.3M | 0.17% | −14,994−1.3% | Reduced |
| Renaissance Technologies LLC | 1,120,300 | $225.8M | 0.30% | +146,369+15.0% | Added |
| Two Sigma Investments, LP | 1,100,141 | $221.7M | 0.34% | +106,857+10.8% | Added |
| Swedbank AB | 1,093,014 | $220.3M | 0.22% | +196,355+21.9% | Added |
| HSBC Holdings PLC | 1,084,774 | $218.4M | 0.13% | −145,640−11.8% | Reduced |
| Findlay Park Partners LLP | 1,065,967 | $214.8M | 2.26% | +180,200+20.3% | Added |
| Raymond James Financial Inc | 1,042,536 | $210.1M | 0.07% | +114,028+12.3% | Added |
| National Pension Service | 1,037,834 | $209.2M | 0.16% | +22,347+2.2% | Added |
| AQR Capital Management LLC | 1,032,461 | $206.8M | 0.13% | +602,056+139.9% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 1,002,026 | $201.9M | 0.15% | +44,670+4.7% | Added |
| TD Asset Management Inc | 981,977 | $197.9M | 0.16% | +56,442+6.1% | Added |
| Storebrand Asset Management AS | 979,801 | $197.5M | 0.52% | +114,436+13.2% | Added |
| Rhumbline Advisers | 932,537 | $187.9M | 0.15% | −15,508−1.6% | Reduced |
| Aviva PLC | 927,765 | $187.0M | 0.34% | −152,419−14.1% | Reduced |
| Sarasin & Partners LLP | 926,449 | $185.5M | 1.82% | +367,121+65.6% | Added |
| Polar Capital Holdings Plc | 910,000 | $183.4M | 0.88% | 00.0% | Unchanged |
| Natixis Advisors, L.P. | 789,444 | $159.1M | 0.23% | −20,560−2.5% | Reduced |
| California State Teachers Retirement System | 788,869 | $159.0M | 0.16% | −1,467−0.2% | Reduced |
| Principal Financial Group Inc | 777,177 | $156.6M | 0.08% | −34,452−4.2% | Reduced |
| Markel Group Inc.SuperinvestorMarkel Group | 755,000 | $152.2M | 1.23% | +6,250+0.8% | Added |
| Manufacturers Life Insurance Company, The | 735,731 | $148.3M | 0.12% | −605,628−45.2% | Reduced |
| Assetmark, Inc | 688,583 | $138.8M | 0.30% | +4,071+0.6% | Added |
| Epoch Investment Partners, Inc. | 680,915 | $137.2M | 0.75% | +49,768+7.9% | Added |
| The PNC Financial Services Group, Inc. | 671,907 | $135.4M | 0.08% | +73,526+12.3% | Added |
| Capital International Inc | 667,621 | $134.5M | 1.08% | +114,547+20.7% | Added |
| CCLA Investment Management Ltd | 656,634 | $132.3M | 2.12% | +15,125+2.4% | Added |
| Acadian Asset Management LLC | 629,480 | $126.8M | 0.22% | −12,611−2.0% | Reduced |
| Lord, Abbett & Co. LLC | 600,223 | $121.0M | 0.36% | 00.0% | Unchanged |
| Jennison Associates LLC | 600,013 | $120.9M | 0.07% | −451,042−42.9% | Reduced |
| Macquarie Group Ltd | 592,509 | $119.4M | 0.14% | +424,092+251.8% | Added |
| New York State Common Retirement Fund | 587,070 | $118.3M | 0.15% | −39,159−6.3% | Reduced |
| Nordea Investment Management AB | 572,964 | $114.9M | 0.10% | −85,176−12.9% | Reduced |
| Prudential Financial Inc | 567,777 | $114.4M | 0.14% | +10,291+1.8% | Added |
| Bank of Montreal | 567,330 | $114.3M | 0.05% | +310+0.1% | Added |
| Pictet Asset Management Holding SA | 558,002 | $112.5M | 0.11% | +27,701+5.2% | Added |