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, Q1 2026
Institutional positions in Marsh & McLennan Companies, Inc. as of Mar 31, 2026. 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
- 1,548
- −24 vs. Q4 2025
- Shares held
- 438.9M
- +59.3M (+15.6%) vs. Q4 2025
- Total value
- $76.1B
- +$5.70B (+8.1%) vs. Q4 2025
- New holders
- 142
- 614 more added
- Sold out
- 166
- 579 more reduced
22 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Marsh & McLennan Companies, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 42,061,676 | $7.30B | 0.13% | +1,616,727+4.0% | Added |
| Vanguard Capital Management LLC | 31,467,674 | $5.46B | 0.14% | +31,467,674 | New |
| State Street Corp | 22,070,945 | $3.83B | 0.13% | +199,008+0.9% | Added |
| Capital World Investors | 17,969,182 | $3.12B | 0.43% | +1,044,051+6.2% | Added |
| Wellington Management Group LLP | 17,370,709 | $3.01B | 0.56% | +1,372,829+8.6% | Added |
| Capital International Investors | 15,713,853 | $2.73B | 0.64% | −3,052,962−16.3% | Reduced |
| Geode Capital Management, LLC | 13,404,172 | $2.32B | 0.14% | +1,760,147+15.1% | Added |
| Vanguard Portfolio Management LLC | 12,427,946 | $2.16B | 0.11% | +12,427,946 | New |
| Capital Research Global Investors | 11,301,188 | $1.96B | 0.30% | +3,313,394+41.5% | Added |
| Price T Rowe Associates Inc | 10,976,286 | $1.90B | 0.22% | +1,758,408+19.1% | Added |
| FMR LLC | 10,180,705 | $1.77B | 0.09% | −5,044,737−33.1% | Reduced |
| Massachusetts Financial Services Co | 8,200,309 | $1.42B | 0.48% | −462,148−5.3% | Reduced |
| Morgan Stanley | 6,473,992 | $1.12B | 0.07% | −396,739−5.8% | Reduced |
| Clearbridge Investments, LLC | 6,423,531 | $1.11B | 0.97% | +1,346,838+26.5% | Added |
| JPMorgan Chase & Co | 6,093,392 | $1.06B | 0.07% | +1,814,734+42.4% | Added |
| Ameriprise Financial Inc | 5,488,537 | $951.6M | 0.22% | +697,729+14.6% | Added |
| UBS Asset Management Americas Inc | 5,182,517 | $898.9M | 0.19% | +636,854+14.0% | Added |
| Harris Associates L PSuperinvestorHarris Associates (Oakmark) | 5,169,119 | $896.6M | 1.20% | +5,169,119 | New |
| Northern Trust Corp | 4,965,079 | $861.2M | 0.11% | −332,481−6.3% | Reduced |
| Bank of America Corp | 4,939,614 | $856.8M | 0.06% | −582,949−10.6% | Reduced |
| Artisan Partners Limited Partnership | 4,875,857 | $845.7M | 1.38% | +1,518,031+45.2% | Added |
| UBS Group AG | 4,721,091 | $818.9M | 0.15% | +933,626+24.7% | Added |
| American Century Companies Inc | 4,234,327 | $734.4M | 0.38% | +1,903,819+81.7% | Added |
| Nuveen, LLC | 4,167,487 | $722.9M | 0.20% | +309,331+8.0% | Added |
| Ninety One UK Ltd | 4,029,142 | $698.9M | 1.62% | +487,138+13.8% | Added |
| Invesco Ltd. | 3,884,778 | $673.8M | 0.07% | +423,900+12.2% | Added |
| Deutsche Bank AG | 3,704,174 | $642.5M | 0.21% | +335,993+10.0% | Added |
| AQR Capital Management LLC | 3,673,987 | $637.3M | 0.29% | +2,195,968+148.6% | Added |
| Goldman Sachs Group Inc | 3,672,959 | $637.1M | 0.08% | −342,221−8.5% | Reduced |
| Mawer Investment Management Ltd. | 3,475,590 | $602.8M | 3.90% | −430,096−11.0% | Reduced |
| Arrowstreet Capital, Limited Partnership | 3,454,586 | $599.2M | 0.32% | +697,541+25.3% | Added |
| Royal Bank of Canada | 3,316,579 | $575.3M | 0.11% | +148,684+4.7% | Added |
| Bank of New York Mellon Corp | 3,254,021 | $564.4M | 0.10% | −67,679−2.0% | Reduced |
| Legal & General Group Plc | 3,066,184 | $531.8M | 0.12% | −79,985−2.5% | Reduced |
| Charles Schwab Investment Management Inc | 3,033,148 | $526.1M | 0.08% | +82,254+2.8% | Added |
| Vanguard Fiduciary Trust Co | 2,733,760 | $474.2M | 0.12% | +2,733,760 | New |
| Wells Fargo & Company | 2,579,008 | $447.3M | 0.09% | +134,342+5.5% | Added |
| BNP Paribas Arbitrage, SA | 2,566,547 | $445.2M | 0.29% | +1,125,998+78.2% | Added |
| Stifel Financial Corp | 2,307,361 | $400.2M | 0.37% | +148,970+6.9% | Added |
| Amundi | 2,298,833 | $398.7M | 0.11% | −1,065,794−31.7% | Reduced |
| Parnassus Investments | 2,210,439 | $383.4M | 1.12% | +36,818+1.7% | Added |
| Alliancebernstein L.P. | 1,981,282 | $367.6M | 0.12% | +142,053+7.7% | Added |
| Dimensional Fund Advisors LP | 2,033,933 | $352.8M | 0.07% | +4,092+0.2% | Added |
| London & Capital Asset Management Ltd | 2,023,752 | $350.9M | 3.82% | +123,752+6.5% | Added |
| D. E. Shaw & Co., Inc. | 1,729,550 | $300.0M | 0.24% | −866,461−33.4% | Reduced |
| Veritas Investment Partners (UK) Ltd. | 1,680,646 | $291.5M | 7.44% | −73,271−4.2% | Reduced |
| Lazard Asset Management LLC | 1,623,755 | $281.6M | 0.46% | −85,464−5.0% | Reduced |
| Manufacturers Life Insurance Company, The | 1,572,947 | $272.8M | 0.23% | +46,720+3.1% | Added |
| Franklin Resources Inc | 1,537,940 | $266.8M | 0.07% | −16,462−1.1% | Reduced |
| Swiss National Bank | 1,437,800 | $249.4M | 0.14% | +89,500+6.6% | Added |
| Barclays PLC | 1,375,355 | $238.6M | 0.09% | −86,946−5.9% | Reduced |
| Rathbone Brothers plc | 1,356,972 | $235.4M | 0.94% | +24,824+1.9% | Added |
| Great West Life Assurance Co | 1,337,344 | $232.9M | 0.42% | +20,413+1.6% | Added |
| First Trust Advisors LP | 1,332,401 | $231.1M | 0.17% | +62,349+4.9% | Added |
| Nippon Life Insurance Co | 1,311,350 | $227.5M | 4.46% | 00.0% | Unchanged |
| Raymond James Financial Inc | 1,228,062 | $213.0M | 0.07% | +211,277+20.8% | Added |
| DekaBank Deutsche Girozentrale | 1,193,291 | $211.8M | 0.35% | 00.0% | Unchanged |
| Polar Capital Holdings Plc | 1,220,000 | $211.6M | 0.92% | +255,000+26.4% | Added |
| Jensen Investment Management Inc | 1,151,204 | $199.7M | 3.94% | +66,887+6.2% | Added |
| Envestnet Asset Management Inc | 1,133,483 | $196.6M | 0.05% | +1,537+0.1% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 1,121,710 | $194.5M | 0.13% | +63,063+6.0% | Added |
| California Public Employees Retirement System | 1,105,853 | $191.8M | 0.12% | −158,819−12.6% | Reduced |
| Swedbank AB | 1,105,265 | $191.7M | 0.20% | −597−0.1% | Reduced |
| Vanguard Global Advisers, LLC | 1,098,115 | $190.5M | 0.10% | +1,098,115 | New |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,094,197 | $189.8M | 0.12% | −69,410−6.0% | Reduced |
| Voloridge Investment Management, LLC | 1,091,938 | $189.4M | 0.76% | −624,828−36.4% | Reduced |
| HSBC Holdings PLC | 985,680 | $171.4M | 0.10% | −153,806−13.5% | Reduced |
| Vanguard Asset Management, Ltd | 980,335 | $170.0M | 0.15% | +980,335 | New |
| Storebrand Asset Management AS | 942,473 | $163.5M | 0.47% | −12,797−1.3% | Reduced |
| TD Asset Management Inc | 939,368 | $162.9M | 0.13% | −10,195−1.1% | Reduced |
| Rhumbline Advisers | 902,114 | $156.5M | 0.13% | +900,708+64,061.7% | Added |
| FIL Ltd | 867,537 | $150.5M | 0.12% | −392,609−31.2% | Reduced |
| Natixis Advisors, L.P. | 849,616 | $147.4M | 0.20% | −13,887−1.6% | Reduced |
| Acadian Asset Management LLC | 844,067 | $146.4M | 0.21% | +96,486+12.9% | Added |
| Longview Partners (Guernsey) LTD | 810,308 | $140.5M | 1.99% | −1,206,887−59.8% | Reduced |
| Canada Pension Plan Investment Board | 809,639 | $140.4M | 0.09% | +497,090+159.0% | Added |
| Beutel, Goodman & Co Ltd. | 779,770 | $135.3M | 0.92% | +779,770 | New |
| Markel Group Inc.SuperinvestorMarkel Group | 763,500 | $132.4M | 1.11% | +1,750+0.2% | Added |
| Capital International Inc | 741,655 | $128.6M | 0.99% | +58,705+8.6% | Added |
| California State Teachers Retirement System | 729,798 | $126.6M | 0.13% | −22,476−3.0% | Reduced |
| Primecap Management Co | 717,500 | $124.5M | 0.10% | +199,300+38.5% | Added |
| Mackenzie Financial Corp | 713,781 | $123.8M | 0.15% | +33,707+5.0% | Added |
| Caisse de Depot Et Placement du Quebec | 710,709 | $123.3M | 0.20% | +73,612+11.6% | Added |
| Jones Financial Companies LLLP | 723,789 | $122.4M | 0.06% | +713,289+6,793.2% | Added |
| Two Sigma Investments, LP | 676,619 | $117.4M | 0.10% | −573,293−45.9% | Reduced |
| SG Americas Securities, LLC | 644,704 | $111.8M | 0.12% | +534,263+483.8% | Added |
| Epoch Investment Partners, Inc. | 644,170 | $111.7M | 0.68% | −73,473−10.2% | Reduced |
| The PNC Financial Services Group, Inc. | 643,360 | $111.6M | 0.06% | −5,164−0.8% | Reduced |
| Davenport & Co LLC | 634,227 | $110.2M | 0.61% | +121,229+23.6% | Added |
| Assetmark, Inc | 628,686 | $109.0M | 0.22% | −17,042−2.6% | Reduced |
| Jupiter Asset Management Ltd | 622,465 | $107.4M | 0.57% | +622,465 | New |
| Principal Financial Group Inc | 610,447 | $105.9M | 0.06% | +5,581+0.9% | Added |
| Robeco Institutional Asset Management B.V. | 605,301 | $105.0M | 0.15% | +306,035+102.3% | Added |
| Marshall Wace, LLP | 605,053 | $104.9M | 0.11% | +502,618+490.7% | Added |
| Prudential Financial Inc | 601,893 | $104.4M | 0.13% | +163,932+37.4% | Added |
| Cryder Capital Partners LLP | 589,456 | $102.2M | 6.68% | +111,712+23.4% | Added |
| Mariner, LLC | 576,070 | $99.9M | 0.12% | +143,449+33.2% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 555,673 | $97.0M | 0.17% | +16,742+3.1% | Added |
| New York State Common Retirement Fund | 549,823 | $95.4M | 0.13% | −21,600−3.8% | Reduced |
| Quilter Plc | 529,206 | $91.8M | 1.61% | +72,349+15.8% | Added |