Marsh & McLennan CosMRSH
13F holders, Q2 2026 (June 30)1,504holders −43
124new positions
166sold out
11famous investors
$166.72avg. 13F price*
At the end of Q2 2026, 1,504 institutions reported holding Marsh & McLennan Cos (MRSH) in their 13F filings, down 43 from Q1 2026. 124 opened new positions and 166 sold out. The largest holders were BlackRock, Inc. ($6.6B), Vanguard Capital Management LLC ($5.2B) and State Street Corp. ($3.7B). 11 famous investors held it, including Bill Nygren (1.9% of Harris Associates (Oakmark Funds)'s portfolio), Tom Gayner (1.0% of Markel Group's portfolio) and Cliff Asness (0.2% of AQR Capital Management's portfolio).
- Company
- Marsh & McLennan Cos
- Sector
- Finance
- CUSIP
- 571748102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 124 | $1.2B |
| Exits | 166 | $402.4M |
All 13F filers, Q1 2026 → Q2 2026: 28,600,381 shares bought and 35,096,730 shares sold, net −6,496,349 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1,504 holders
| BlackRock, Inc. | 0.10% | Reduce -6.1% | 39,502,046 | $6.6B |
| Vanguard Capital Management LLC | 0.11% | Add +0.0% | 31,472,575 | $5.2B |
| State Street Corp. | 0.11% | Add +1.5% | 22,401,676 | $3.7B |
| Capital World Investors | 0.36% | Add +0.8% | 18,122,340 | $3.0B |
| Wellington Management Group LLP | 0.49% | Reduce -2.3% | 16,975,238 | $2.8B |
| Capital International Investors | 0.55% | Add +0.1% | 15,729,457 | $2.6B |
| Geode Capital Management, LLC | 0.12% | Add +0.8% | 13,510,274 | $2.3B |
| T. Rowe Price Associates Inc. | 0.22% | Add +22.4% | 13,438,662 | $2.2B |
| Vanguard Portfolio Management LLC | 0.09% | Add +1.1% | 12,570,512 | $2.1B |
| Capital Research Global Investors | 0.26% | Reduce -2.9% | 10,973,649 | $1.8B |
| Harris Associates (Oakmark Funds) | 1.93% | Add +68.1% | 8,687,496 | $1.4B |
| Artisan Partners Limited Partnership | 1.98% | Add +49.1% | 7,269,246 | $1.2B |
| FMR LLC | 0.05% | Reduce -31.7% | 6,954,123 | $1.2B |
| Massachusetts Financial Services Co. | 0.35% | Reduce -20.6% | 6,507,415 | $1.1B |
| Morgan Stanley | 0.06% | Reduce -2.5% | 6,314,085 | $1.1B |
| Norges Bank | 0.10% | — | 6,255,525 | $1.0B |
| Ameriprise Financial Inc. | 0.19% | Add +0.8% | 5,535,138 | $922.1M |
| Northern Trust Corp. | 0.09% | Reduce -1.6% | 4,888,165 | $814.7M |
| JPMorgan Chase & Co. | 0.05% | Reduce -22.4% | 4,730,329 | $788.6M |
| Clearbridge Investments, LLC | 0.65% | Reduce -26.7% | 4,705,966 | $784.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.14% | Reduce -11.3% | 4,597,647 | $766.3M |
| Invesco Ltd. | 0.06% | Add +10.8% | 4,305,773 | $717.6M |
| Goldman Sachs Group Inc. | 0.07% | Add +15.1% | 4,228,626 | $704.8M |
| Arrowstreet Capital, Limited Partnership | 0.31% | Add +20.7% | 4,170,110 | $695.0M |
| Deutsche Bank AG | 0.20% | Add +11.1% | 4,113,644 | $685.6M |
| Ninety One UK Ltd | 1.48% | Reduce -1.4% | 3,971,522 | $661.9M |
| American Century Companies Inc. | 0.29% | Reduce -8.4% | 3,877,741 | $646.3M |
| EdgePoint Investment Group Inc. | 4.81% | New | 3,820,196 | $636.7M |
| UBS Group AG | 0.10% | Reduce -23.7% | 3,603,522 | $600.6M |
| Bank of America Corp. | 0.04% | Reduce -30.1% | 3,455,003 | $575.8M |
| Nuveen, LLC | 0.14% | Reduce -17.2% | 3,451,900 | $575.3M |
| Bank of New York Mellon Corp | 0.09% | Reduce -1.8% | 3,194,567 | $532.4M |
| Charles Schwab Investment Management Inc. | 0.07% | Add +1.3% | 3,072,405 | $512.1M |
| Amundi | 0.12% | Add +25.5% | 2,884,376 | $480.7M |
| Royal Bank of Canada | 0.08% | Reduce -15.2% | 2,813,877 | $469.0M |
| Legal & General Group Plc | 0.10% | Reduce -8.9% | 2,793,483 | $465.6M |
| Vanguard Fiduciary Trust Co. | 0.10% | Reduce -1.0% | 2,705,812 | $451.0M |
| AQR Capital Management | 0.15% | Reduce -29.0% | 2,607,451 | $432.1M |
| Wells Fargo & Company | 0.07% | Reduce -2.7% | 2,510,228 | $418.4M |
| Stifel Financial Corp. | 0.31% | Reduce -4.1% | 2,212,398 | $368.7M |
| Alliancebernstein L.P. | 0.12% | Add +4.0% | 2,061,247 | $357.5M |
| Primecap Management Co. | 0.21% | Add +199.0% | 2,145,025 | $357.5M |
| W1M Asset Management Ltd | 3.19% | Add +3.3% | 2,090,489 | $348.2M |
| Parnassus Investments, LLC | 0.91% | Reduce -7.4% | 2,047,623 | $341.3M |
| Dimensional Fund Advisors LP | 0.06% | Reduce -0.6% | 2,022,672 | $337.1M |
| Mawer Investment Management Ltd. | 2.12% | Reduce -46.2% | 1,871,159 | $311.9M |
| Manufacturers Life Insurance Company, The | 0.25% | Add +18.7% | 1,867,077 | $311.2M |
| Rathbones Group PLC | 1.06% | Add +27.7% | 1,733,034 | $288.8M |
| Canada Pension Plan Investment Board | 0.15% | Add +98.3% | 1,605,850 | $267.6M |
| Beutel, Goodman & Co Ltd. | 1.93% | Add +101.8% | 1,573,890 | $262.3M |
| Lazard Asset Management LLC | 0.38% | Reduce -6.6% | 1,516,945 | $252.8M |
| Navera Investment Management Ltd. | 6.78% | Reduce -9.7% | 1,517,459 | $252.8M |
| BNP Paribas Financial Markets | 0.13% | Reduce -41.6% | 1,497,934 | $249.7M |
| Franklin Resources Inc. | 0.05% | Reduce -3.4% | 1,485,628 | $247.6M |
| Swiss National Bank | 0.12% | Reduce -5.5% | 1,359,000 | $226.5M |
| Voloridge Investment Management, LLC | 0.94% | Add +21.9% | 1,330,728 | $221.8M |
| First Trust Advisors LP | 0.13% | Reduce -1.0% | 1,319,512 | $219.9M |
| Nippon Life Insurance Co. | 3.62% | No change | 1,311,350 | $218.6M |
| Swedbank AB | 0.19% | Add +17.8% | 1,301,456 | $216.9M |
| Polar Capital Holdings Plc | 0.62% | Add +6.6% | 1,300,000 | $216.7M |
| DekaBank Deutsche Girozentrale | 0.35% | No change | 1,193,291 | $207.5M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.11% | Add +7.0% | 1,199,699 | $200.1M |
| Raymond James Financial Inc. | 0.05% | Reduce -3.3% | 1,187,191 | $197.9M |
| CANADA LIFE ASSURANCE Co | 0.31% | Reduce -13.6% | 1,155,368 | $192.1M |
| National Pension Service | 0.12% | New | 1,128,564 | $188.1M |
| Sumitomo Mitsui Trust Group, Inc. | 0.10% | Add +0.6% | 1,100,656 | $183.4M |
| Vanguard Global Advisers, LLC | 0.09% | Add +0.1% | 1,099,122 | $183.2M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.12% | Add +11.2% | 1,089,768 | $181.6M |
| Marshall Wace, LLP | 0.15% | Add +72.5% | 1,043,399 | $173.9M |
| HSBC Holdings PLC | 0.08% | Add +3.7% | 1,022,077 | $170.4M |
| Envestnet Asset Management Inc. | 0.04% | Reduce -11.9% | 998,086 | $166.4M |
| Jensen Investment Management Inc. | 3.98% | Reduce -14.4% | 984,904 | $164.2M |
| Barclays PLC | 0.05% | Reduce -28.5% | 982,810 | $163.8M |
| Caisse de depot et placement du Quebec | 0.23% | Add +38.3% | 982,538 | $163.8M |
| Storebrand Asset Management As | 0.40% | Add +3.4% | 974,704 | $162.5M |
| Robeco Institutional Asset Management B.V. | 0.19% | Add +49.8% | 906,861 | $151.1M |
| Rhumbline Advisers | 0.11% | Reduce -1.1% | 892,176 | $148.7M |
| FIL Ltd | 0.11% | Add +2.4% | 887,945 | $148.0M |
| California Public Employees Retirement System | 0.08% | Reduce -21.8% | 865,316 | $144.2M |
| D. E. Shaw & Co. | 0.09% | Reduce -51.5% | 839,616 | $139.9M |
| TD Asset Management Inc | 0.12% | Reduce -14.8% | 800,370 | $133.4M |
| Markel Group | 0.97% | No change | 763,500 | $127.3M |
| Acadian Asset Management LLC | 0.15% | Reduce -11.3% | 748,439 | $124.7M |
| Capital International, Inc. | 0.87% | Reduce -0.2% | 739,907 | $123.3M |
| California State Teachers Retirement System | 0.11% | Add +0.8% | 735,926 | $122.7M |
| Mackenzie Financial Corp. | 0.12% | Add +2.2% | 729,781 | $121.6M |
| Jennison Associates LLC | 0.07% | Add +207.0% | 683,273 | $113.9M |
| Assenagon Asset Management S.A. | 0.14% | Add +316.2% | 654,434 | $109.1M |
| Cryder Capital Partners LLP | 6.82% | Add +10.2% | 649,418 | $108.2M |
| Natixis Advisors, LLC | 0.12% | Reduce -25.2% | 635,893 | $106.0M |
| Epoch Investment Partners, Inc. | 0.60% | Reduce -1.4% | 635,153 | $105.9M |
| PNC Financial Services Group, Inc. | 0.05% | Reduce -3.8% | 619,003 | $103.2M |
| Bank of Montreal | 0.04% | Add +19.1% | 613,768 | $102.3M |
| DAVENPORT & Co LLC | 0.52% | Reduce -3.5% | 612,045 | $102.0M |
| Principal Financial Group Inc. | 0.05% | Reduce -0.9% | 604,724 | $100.8M |
| Jupiter Asset Management Ltd. | 0.48% | Reduce -5.5% | 588,501 | $97.3M |
| Citigroup Inc. | 0.04% | Add +9.0% | 570,878 | $95.1M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.13% | Reduce -7.4% | 514,651 | $86.5M |
| New York State Common Retirement Fund | 0.11% | Reduce -6.3% | 515,312 | $85.9M |
| Pictet Asset Management Holding SA | 0.08% | Add +19.6% | 514,868 | $85.8M |
"% of holder's portfolio" is MRSH's weight in each manager's 13F, not the share of Marsh & McLennan Cos the manager owns.