Marsh & McLennan CosMRSH
13F holders, Q1 2025 (March 31)1,626holders +49
154new positions
99sold out
9famous investors
$243.93avg. 13F price*
At the end of Q1 2025, 1,626 institutions reported holding Marsh & McLennan Cos (MRSH) in their 13F filings, up 49 from Q4 2024. 154 opened new positions and 99 sold out. The largest holders were Vanguard Group Inc. ($11.1B), BlackRock, Inc. ($9.9B) and FMR LLC ($5.4B). 9 famous investors held it, including Tom Gayner (1.6% of Markel Group's portfolio), David E. Shaw (0.3% of D. E. Shaw & Co.'s portfolio) and Jim Simons / Peter Brown (0.2% of Renaissance Technologies's portfolio).
- Company
- Marsh & McLennan Cos
- Sector
- Finance
- CUSIP
- 571748102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 154 | $187.8M |
| Exits | 99 | $207.5M |
All 13F filers, Q4 2024 → Q1 2025: 22,839,627 shares bought and 22,769,361 shares sold, net +70,266 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1,626 holders
| Vanguard Group Inc. | 0.20% | Add +1.3% | 45,321,445 | $11.1B |
| BlackRock, Inc. | 0.21% | Reduce -2.5% | 40,601,219 | $9.9B |
| FMR LLC | 0.35% | Add +4.3% | 22,151,590 | $5.4B |
| State Street Corp. | 0.22% | Add +1.1% | 21,490,479 | $5.2B |
| Capital International Investors | 0.88% | Add +0.2% | 18,274,214 | $4.5B |
| Capital World Investors | 0.70% | Add +0.7% | 17,651,003 | $4.3B |
| Wellington Management Group LLP | 0.60% | Add +54.2% | 12,814,788 | $3.1B |
| Geode Capital Management, LLC | 0.24% | Add +3.6% | 12,487,735 | $3.0B |
| Massachusetts Financial Services Co. | 0.82% | Reduce -2.4% | 10,097,141 | $2.5B |
| T. Rowe Price Associates Inc. | 0.26% | Reduce -16.0% | 8,527,241 | $2.1B |
| Ameriprise Financial Inc. | 0.52% | Reduce -6.5% | 7,793,082 | $1.9B |
| Bank of America Corp. | 0.15% | Add +9.8% | 7,143,588 | $1.7B |
| Morgan Stanley | 0.12% | Add +4.2% | 6,841,775 | $1.7B |
| Capital Research Global Investors | 0.35% | Add +171.9% | 6,580,931 | $1.6B |
| Mawer Investment Management Ltd. | 7.04% | Reduce -4.0% | 5,972,112 | $1.5B |
| Northern Trust Corp. | 0.21% | Reduce -0.7% | 5,893,411 | $1.4B |
| Norges Bank | 0.20% | Reduce -1.8% | 5,717,471 | $1.4B |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.32% | Reduce -0.7% | 5,180,922 | $1.3B |
| UBS Group AG | 0.26% | Add +10.9% | 4,744,828 | $1.2B |
| Goldman Sachs Group Inc. | 0.20% | Add +7.9% | 4,345,211 | $1.1B |
| Nuveen, LLC | 0.32% | — | 4,256,009 | $1.0B |
| JPMorgan Chase & Co. | 0.08% | Reduce -12.0% | 4,233,038 | $1.0B |
| Wells Fargo & Company | 0.21% | Add +3.6% | 3,589,842 | $876.0M |
| Artisan Partners Limited Partnership | 1.35% | Reduce -2.1% | 3,411,336 | $832.5M |
| Legal & General Group Plc | 0.22% | Reduce -5.4% | 3,343,299 | $815.9M |
| Bank of New York Mellon Corp | 0.16% | Reduce -0.6% | 3,266,886 | $797.2M |
| Deutsche Bank AG | 0.31% | Reduce -13.2% | 3,227,890 | $787.7M |
| Clearbridge Investments, LLC | 0.63% | Reduce -2.7% | 2,943,040 | $718.2M |
| Charles Schwab Investment Management Inc. | 0.13% | Add +2.4% | 2,858,136 | $697.5M |
| Parnassus Investments, LLC | 1.64% | Reduce -21.6% | 2,797,477 | $682.7M |
| Primecap Management Co. | 0.54% | Reduce -1.6% | 2,687,926 | $655.9M |
| Royal Bank of Canada | 0.14% | Add +8.1% | 2,646,125 | $645.7M |
| Jensen Investment Management Inc. | 7.10% | Reduce -13.5% | 2,629,686 | $641.7M |
| Nippon Life Insurance Co. | 10.15% | No change | 2,622,700 | $640.0M |
| Invesco Ltd. | 0.12% | Reduce -8.2% | 2,595,714 | $633.4M |
| Longview Partners (Guernsey) LTD | 4.72% | Reduce -6.1% | 2,405,616 | $587.0M |
| Ninety One UK Ltd | 1.61% | Add +153.7% | 2,370,678 | $578.5M |
| Lazard Asset Management LLC | 0.96% | Reduce -14.5% | 2,338,379 | $570.6M |
| Stifel Financial Corp. | 0.59% | Add +2.1% | 2,271,586 | $554.3M |
| California Public Employees Retirement System | 0.37% | Reduce -3.0% | 2,171,746 | $530.0M |
| Ako Capital LLP | 6.72% | Add +2.9% | 2,121,730 | $517.8M |
| Barclays PLC | 0.24% | Reduce -15.3% | 2,118,514 | $517.0M |
| Dimensional Fund Advisors LP | 0.13% | Add +1.7% | 2,062,278 | $503.2M |
| Robeco Institutional Asset Management B.V. | 0.94% | Add +18.2% | 1,978,219 | $482.7M |
| Bahl & Gaynor LLC | 2.44% | Add +2.9% | 1,960,496 | $478.4M |
| Janus Henderson Group PLC | 0.26% | Reduce -6.0% | 1,942,306 | $470.8M |
| BNP Paribas Financial Markets | 0.31% | Add +51.9% | 1,627,515 | $397.2M |
| Franklin Resources Inc. | 0.11% | Add +66.3% | 1,542,849 | $376.5M |
| Amundi | 0.14% | Reduce -62.5% | 1,528,870 | $373.5M |
| Navera Investment Management Ltd. | 6.75% | Add +5.0% | 1,511,296 | $368.8M |
| HSBC Holdings PLC | 0.23% | Reduce -0.4% | 1,399,608 | $340.7M |
| Alliancebernstein L.P. | 0.12% | Add +4.1% | 1,392,735 | $339.9M |
| Swiss National Bank | 0.24% | Reduce -0.3% | 1,385,100 | $338.0M |
| Envestnet Asset Management Inc. | 0.10% | Add +1.4% | 1,241,197 | $302.9M |
| CANADA LIFE ASSURANCE Co | 0.52% | Add +1.5% | 1,205,627 | $294.8M |
| W1M Investment Management Ltd | 4.55% | Add +2.8% | 1,205,958 | $294.3M |
| Acadian Asset Management LLC | 0.83% | Reduce -23.2% | 1,205,122 | $294.1M |
| Sumitomo Mitsui Trust Group, Inc. | 0.21% | Add +0.5% | 1,189,105 | $290.2M |
| Qube Research & Technologies Ltd | 0.44% | Reduce -20.0% | 1,162,486 | $283.7M |
| DekaBank Deutsche Girozentrale | 0.55% | Reduce -1.5% | 1,175,283 | $280.1M |
| FIL Ltd | 0.26% | Add +0.5% | 1,141,469 | $278.6M |
| Findlay Park Partners LLP | 2.84% | Add +27.3% | 1,130,367 | $275.8M |
| American Century Companies Inc. | 0.17% | Reduce -1.7% | 1,105,037 | $269.7M |
| First Trust Advisors LP | 0.23% | Reduce -4.3% | 1,077,600 | $263.0M |
| Aviva PLC | 0.62% | Add +4.4% | 1,048,515 | $255.9M |
| Storebrand Asset Management As | 0.79% | Reduce -15.0% | 996,143 | $243.1M |
| Caisse de depot et placement du Quebec | 0.51% | Add +19.9% | 992,436 | $242.2M |
| Rhumbline Advisers | 0.23% | Add +3.0% | 989,962 | $241.6M |
| National Pension Service | 0.23% | Add +4.8% | 978,462 | $238.8M |
| Voloridge Investment Management, LLC | 0.88% | Reduce -5.9% | 976,695 | $238.3M |
| TD Asset Management Inc | 0.22% | Add +18.7% | 968,810 | $236.4M |
| Raymond James Financial Inc. | 0.09% | Reduce -4.4% | 933,112 | $227.7M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.26% | Reduce -5.9% | 896,756 | $218.8M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.20% | Add +11.8% | 891,714 | $217.6M |
| Polar Capital Holdings Plc | 1.31% | No change | 874,000 | $213.3M |
| Bank of Montreal | 0.11% | Reduce -15.1% | 852,473 | $208.0M |
| California State Teachers Retirement System | 0.26% | Reduce -1.0% | 849,663 | $207.3M |
| Principal Financial Group Inc. | 0.12% | Add +0.4% | 840,293 | $205.1M |
| Alphinity Investment Management Pty Ltd | 1.37% | Reduce -65.9% | 827,566 | $202.0M |
| D. E. Shaw & Co. | 0.25% | Add +133.8% | 806,914 | $196.9M |
| Natixis Advisors, LLC | 0.36% | Add +2.0% | 804,753 | $196.4M |
| Montrusco Bolton Investments Inc. | 2.56% | Add +9.6% | 823,645 | $194.8M |
| Nordea Investment Management AB | 0.20% | Reduce -10.6% | 778,763 | $190.4M |
| Rathbones Group PLC | 0.91% | Add +17.5% | 770,666 | $188.1M |
| Capital Group Private Client Services, Inc. | 1.83% | Reduce -3.2% | 767,655 | $187.3M |
| Manufacturers Life Insurance Company, The | 0.17% | Reduce -23.8% | 748,006 | $182.5M |
| Markel Group | 1.61% | Add +1.1% | 743,500 | $181.4M |
| Mackenzie Financial Corp. | 0.25% | Reduce -5.0% | 731,080 | $178.4M |
| Epoch Investment Partners, Inc. | 0.91% | Add +25.5% | 720,834 | $175.9M |
| Lord, Abbett & Co. LLC | 0.61% | No change | 667,046 | $162.8M |
| Assetmark, Inc. | 0.44% | Reduce -1.3% | 658,152 | $160.6M |
| Swedbank AB | 0.21% | Add +132.8% | 651,830 | $159.1M |
| Prudential Financial Inc. | 0.22% | Add +31.7% | 637,307 | $155.5M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.32% | Add +12.8% | 630,885 | $154.0M |
| New York State Common Retirement Fund | 0.23% | Reduce -6.3% | 628,919 | $153.5M |
| Renaissance Technologies | 0.23% | Add +23.0% | 619,000 | $151.1M |
| Worldquant Millennium Advisors LLC | 0.93% | Reduce -2.0% | 603,467 | $147.3M |
| CCLA Investment Management | 2.60% | Add +9.6% | 601,373 | $146.7M |
| PNC Financial Services Group, Inc. | 0.08% | Add +1.4% | 595,851 | $145.4M |
| Citigroup Inc. | 0.11% | Add +73.4% | 574,994 | $140.3M |
"% of holder's portfolio" is MRSH's weight in each manager's 13F, not the share of Marsh & McLennan Cos the manager owns.