Marsh & McLennan CosMRSH
13F holders, Q4 2025 (December 31)1,594holders +18
121new positions
165sold out
13famous investors
$185.56avg. 13F price*
At the end of Q4 2025, 1,594 institutions reported holding Marsh & McLennan Cos (MRSH) in their 13F filings, up 18 from Q3 2025. 121 opened new positions and 165 sold out. The largest holders were Vanguard Group Inc. ($8.6B), BlackRock, Inc. ($7.5B) and State Street Corp. ($4.1B). 13 famous investors held it, including Tom Gayner (1.1% of Markel Group's portfolio), David E. Shaw (0.4% of D. E. Shaw & Co.'s portfolio) and Paul Tudor Jones (0.2% of Tudor Investment Corporation's portfolio).
- Company
- Marsh & McLennan Cos
- Sector
- Finance
- CUSIP
- 571748102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 121 | $430.7M |
| Exits | 165 | $291.0M |
All 13F filers, Q3 2025 → Q4 2025: 28,409,985 shares bought and 33,232,825 shares sold, net −4,822,840 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1,594 holders
| Vanguard Group Inc. | 0.13% | Add +0.8% | 46,589,633 | $8.6B |
| BlackRock, Inc. | 0.13% | Add +4.3% | 40,444,949 | $7.5B |
| State Street Corp. | 0.14% | Add +1.6% | 21,871,937 | $4.1B |
| Capital International Investors | 0.55% | Add +0.9% | 18,766,815 | $3.5B |
| Capital World Investors | 0.43% | Reduce -4.4% | 16,925,131 | $3.1B |
| Wellington Management Group LLP | 0.52% | Add +6.0% | 15,997,880 | $3.0B |
| FMR LLC | 0.14% | Reduce -7.5% | 15,225,442 | $2.8B |
| Geode Capital Management, LLC | 0.13% | Reduce -10.2% | 11,644,025 | $2.2B |
| T. Rowe Price Associates Inc. | 0.18% | Add +10.4% | 9,217,878 | $1.7B |
| Massachusetts Financial Services Co. | 0.52% | Reduce -8.6% | 8,662,457 | $1.6B |
| Norges Bank | 0.17% | — | 8,386,530 | $1.6B |
| Capital Research Global Investors | 0.27% | Reduce -19.0% | 7,987,794 | $1.5B |
| Morgan Stanley | 0.08% | Reduce -2.6% | 6,870,731 | $1.3B |
| Bank of America Corp. | 0.07% | Reduce -13.8% | 5,522,563 | $1.0B |
| Northern Trust Corp. | 0.13% | Reduce -5.8% | 5,297,560 | $982.8M |
| Clearbridge Investments, LLC | 0.76% | Add +12.4% | 5,076,693 | $941.8M |
| Ameriprise Financial Inc. | 0.20% | Reduce -16.9% | 4,790,808 | $888.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.18% | Add +0.0% | 4,545,663 | $843.3M |
| JPMorgan Chase & Co. | 0.05% | Reduce -12.2% | 4,278,658 | $793.8M |
| Goldman Sachs Group Inc. | 0.11% | Reduce -23.1% | 4,015,180 | $744.9M |
| Mawer Investment Management Ltd. | 4.06% | Reduce -14.6% | 3,905,686 | $724.6M |
| Nuveen, LLC | 0.19% | Add +0.2% | 3,858,156 | $715.8M |
| UBS Group AG | 0.14% | Reduce -11.0% | 3,787,465 | $702.7M |
| Ninety One UK Ltd | 1.41% | Add +163.0% | 3,542,004 | $657.1M |
| Invesco Ltd. | 0.06% | Add +5.1% | 3,460,878 | $642.1M |
| Deutsche Bank AG | 0.20% | Add +2.4% | 3,368,181 | $624.9M |
| Amundi | 0.19% | Add +127.6% | 3,364,627 | $624.2M |
| Artisan Partners Limited Partnership | 0.95% | Reduce -2.3% | 3,357,826 | $622.9M |
| Bank of New York Mellon Corp | 0.11% | Add +8.4% | 3,321,700 | $616.2M |
| Royal Bank of Canada | 0.10% | Add +40.4% | 3,167,895 | $587.7M |
| Legal & General Group Plc | 0.13% | Reduce -1.6% | 3,146,169 | $583.7M |
| Charles Schwab Investment Management Inc. | 0.09% | Add +1.6% | 2,950,894 | $547.4M |
| Arrowstreet Capital, Limited Partnership | 0.30% | Add +94.3% | 2,757,045 | $511.5M |
| D. E. Shaw & Co. | 0.39% | Add +0.8% | 2,596,011 | $481.6M |
| Wells Fargo & Company | 0.09% | Reduce -8.4% | 2,444,666 | $453.5M |
| American Century Companies Inc. | 0.22% | Add +84.9% | 2,330,508 | $432.4M |
| Parnassus Investments, LLC | 1.05% | Reduce -16.0% | 2,173,621 | $403.3M |
| Stifel Financial Corp. | 0.36% | Reduce -6.0% | 2,158,391 | $400.4M |
| Dimensional Fund Advisors LP | 0.08% | Add +0.3% | 2,029,841 | $376.6M |
| Longview Partners (Guernsey) LTD | 3.91% | Reduce -3.4% | 2,017,195 | $374.2M |
| W1M Asset Management Ltd | 3.66% | Add +791.2% | 1,900,000 | $352.7M |
| Alliancebernstein L.P. | 0.11% | Add +54.4% | 1,839,229 | $341.2M |
| Navera Investment Management Ltd. | 6.87% | Add +8.0% | 1,753,917 | $325.5M |
| Voloridge Investment Management, LLC | 1.12% | Add +24.4% | 1,716,766 | $318.5M |
| Lazard Asset Management LLC | 0.54% | Reduce -38.1% | 1,709,219 | $317.1M |
| Franklin Resources Inc. | 0.07% | Add +0.3% | 1,554,402 | $288.4M |
| Manufacturers Life Insurance Company, The | 0.24% | Add +107.4% | 1,526,227 | $283.3M |
| Assenagon Asset Management S.A. | 0.42% | Add +9455.4% | 1,520,164 | $282.0M |
| Ako Capital LLP | 4.19% | Reduce -17.5% | 1,484,860 | $275.5M |
| AQR Capital Management | 0.14% | Add +43.1% | 1,478,019 | $274.2M |
| Barclays PLC | 0.11% | Reduce -33.6% | 1,462,301 | $271.3M |
| BNP Paribas Financial Markets | 0.17% | Add +9.2% | 1,440,549 | $267.3M |
| DekaBank Deutsche Girozentrale | 0.45% | No change | 1,193,291 | $259.7M |
| Swiss National Bank | 0.15% | Reduce -5.1% | 1,348,300 | $250.1M |
| Rathbones Group PLC | 0.97% | Add +5.4% | 1,332,148 | $247.1M |
| CANADA LIFE ASSURANCE Co | 0.43% | Reduce -5.7% | 1,316,931 | $244.6M |
| Two Sigma Advisers, LP | 0.47% | Add +0.2% | 1,312,200 | $243.4M |
| Nippon Life Insurance Co. | 4.19% | No change | 1,311,350 | $243.3M |
| Bahl & Gaynor LLC | 1.21% | Reduce -30.3% | 1,287,401 | $238.8M |
| First Trust Advisors LP | 0.17% | Add +9.7% | 1,270,052 | $235.6M |
| California Public Employees Retirement System | 0.13% | Reduce -16.5% | 1,264,672 | $234.6M |
| FIL Ltd | 0.18% | Reduce -9.0% | 1,260,146 | $233.8M |
| Two Sigma Investments, LP | 0.37% | Add +13.6% | 1,249,912 | $231.9M |
| Sumitomo Mitsui Trust Group, Inc. | 0.13% | Reduce -4.4% | 1,163,607 | $215.9M |
| HSBC Holdings PLC | 0.12% | Add +5.0% | 1,139,486 | $211.8M |
| National Pension Service | 0.16% | Add +9.9% | 1,140,767 | $211.6M |
| Envestnet Asset Management Inc. | 0.06% | Reduce -12.7% | 1,131,946 | $210.0M |
| Swedbank AB | 0.20% | Add +1.2% | 1,105,862 | $205.2M |
| Jensen Investment Management Inc. | 3.17% | Reduce -54.9% | 1,084,317 | $201.2M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.13% | Add +5.7% | 1,058,647 | $193.3M |
| Raymond James Financial Inc. | 0.06% | Reduce -2.5% | 1,016,785 | $188.6M |
| Polar Capital Holdings Plc | 0.82% | Add +6.0% | 965,000 | $179.0M |
| Storebrand Asset Management As | 0.48% | Reduce -2.5% | 955,270 | $177.2M |
| TD Asset Management Inc | 0.14% | Reduce -3.3% | 949,563 | $176.2M |
| Sarasin & Partners LLP | 1.80% | Add +0.9% | 934,732 | $173.4M |
| Worldquant Millennium Advisors LLC | 0.64% | Add +160.8% | 892,933 | $165.7M |
| Findlay Park Partners LLP | 2.10% | Reduce -16.8% | 886,467 | $164.5M |
| Natixis Advisors, LLC | 0.23% | Add +9.4% | 863,503 | $160.2M |
| Citadel Advisors | 0.11% | Add +110.0% | 822,371 | $152.6M |
| Markel Group | 1.13% | Add +0.9% | 761,750 | $141.3M |
| California State Teachers Retirement System | 0.14% | Reduce -4.6% | 752,274 | $139.6M |
| Acadian Asset Management LLC | 0.23% | Add +18.8% | 747,581 | $138.7M |
| Qube Research & Technologies Ltd | 0.19% | Reduce -42.7% | 732,481 | $135.9M |
| Millennium Management | 0.10% | Add +293.5% | 724,648 | $134.4M |
| Epoch Investment Partners, Inc. | 0.76% | Add +5.4% | 717,643 | $133.1M |
| Mackenzie Financial Corp. | 0.15% | Reduce -67.7% | 680,074 | $127.2M |
| Capital International, Inc. | 1.00% | Add +2.3% | 682,950 | $126.7M |
| PNC Financial Services Group, Inc. | 0.07% | Reduce -3.5% | 648,524 | $120.3M |
| CCLA Investment Management | 1.93% | Reduce -1.3% | 647,823 | $120.2M |
| Assetmark, Inc. | 0.24% | Reduce -6.2% | 645,728 | $119.8M |
| Caisse de depot et placement du Quebec | 0.20% | Add +870.3% | 637,097 | $118.2M |
| Principal Financial Group Inc. | 0.06% | Reduce -22.2% | 604,866 | $112.2M |
| New York State Common Retirement Fund | 0.14% | Reduce -2.7% | 571,423 | $106.0M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.17% | Add +36.2% | 552,367 | $102.5M |
| Bank of Montreal | 0.04% | Reduce -3.4% | 548,093 | $101.7M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.17% | Add +7.6% | 538,931 | $100.5M |
| Lord, Abbett & Co. LLC | 0.32% | Reduce -9.9% | 540,785 | $100.3M |
| Squarepoint Ops LLC | 0.20% | Add +36.9% | 527,486 | $97.9M |
| Primecap Management Co. | 0.07% | Reduce -71.5% | 518,200 | $96.1M |
| DAVENPORT & Co LLC | 0.52% | Add +419.0% | 512,998 | $95.4M |
"% of holder's portfolio" is MRSH's weight in each manager's 13F, not the share of Marsh & McLennan Cos the manager owns.