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 |
|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | 1,572,947 | $272.8M | 0.23% | +46,720+3.1% | Added |
| Lazard Asset Management LLC | 1,623,755 | $281.6M | 0.46% | −85,464−5.0% | Reduced |
| Veritas Investment Partners (UK) Ltd. | 1,680,646 | $291.5M | 7.44% | −73,271−4.2% | Reduced |
| D. E. Shaw & Co., Inc. | 1,729,550 | $300.0M | 0.24% | −866,461−33.4% | Reduced |
| London & Capital Asset Management Ltd | 2,023,752 | $350.9M | 3.82% | +123,752+6.5% | Added |
| Dimensional Fund Advisors LP | 2,033,933 | $352.8M | 0.07% | +4,092+0.2% | Added |
| Alliancebernstein L.P. | 1,981,282 | $367.6M | 0.12% | +142,053+7.7% | Added |
| Parnassus Investments | 2,210,439 | $383.4M | 1.12% | +36,818+1.7% | Added |
| Amundi | 2,298,833 | $398.7M | 0.11% | −1,065,794−31.7% | Reduced |
| Stifel Financial Corp | 2,307,361 | $400.2M | 0.37% | +148,970+6.9% | Added |
| BNP Paribas Arbitrage, SA | 2,566,547 | $445.2M | 0.29% | +1,125,998+78.2% | Added |
| Wells Fargo & Company | 2,579,008 | $447.3M | 0.09% | +134,342+5.5% | Added |
| Vanguard Fiduciary Trust Co | 2,733,760 | $474.2M | 0.12% | +2,733,760 | New |
| Charles Schwab Investment Management Inc | 3,033,148 | $526.1M | 0.08% | +82,254+2.8% | Added |
| Legal & General Group Plc | 3,066,184 | $531.8M | 0.12% | −79,985−2.5% | Reduced |
| Bank of New York Mellon Corp | 3,254,021 | $564.4M | 0.10% | −67,679−2.0% | Reduced |
| Royal Bank of Canada | 3,316,579 | $575.3M | 0.11% | +148,684+4.7% | Added |
| Arrowstreet Capital, Limited Partnership | 3,454,586 | $599.2M | 0.32% | +697,541+25.3% | Added |
| Mawer Investment Management Ltd. | 3,475,590 | $602.8M | 3.90% | −430,096−11.0% | Reduced |
| Goldman Sachs Group Inc | 3,672,959 | $637.1M | 0.08% | −342,221−8.5% | Reduced |
| AQR Capital Management LLC | 3,673,987 | $637.3M | 0.29% | +2,195,968+148.6% | Added |
| Deutsche Bank AG | 3,704,174 | $642.5M | 0.21% | +335,993+10.0% | Added |
| Invesco Ltd. | 3,884,778 | $673.8M | 0.07% | +423,900+12.2% | Added |
| Ninety One UK Ltd | 4,029,142 | $698.9M | 1.62% | +487,138+13.8% | Added |
| Nuveen, LLC | 4,167,487 | $722.9M | 0.20% | +309,331+8.0% | Added |
| American Century Companies Inc | 4,234,327 | $734.4M | 0.38% | +1,903,819+81.7% | Added |
| UBS Group AG | 4,721,091 | $818.9M | 0.15% | +933,626+24.7% | Added |
| Artisan Partners Limited Partnership | 4,875,857 | $845.7M | 1.38% | +1,518,031+45.2% | Added |
| Bank of America Corp | 4,939,614 | $856.8M | 0.06% | −582,949−10.6% | Reduced |
| Northern Trust Corp | 4,965,079 | $861.2M | 0.11% | −332,481−6.3% | Reduced |
| Harris Associates L PSuperinvestorHarris Associates (Oakmark) | 5,169,119 | $896.6M | 1.20% | +5,169,119 | New |
| UBS Asset Management Americas Inc | 5,182,517 | $898.9M | 0.19% | +636,854+14.0% | Added |
| Ameriprise Financial Inc | 5,488,537 | $951.6M | 0.22% | +697,729+14.6% | Added |
| JPMorgan Chase & Co | 6,093,392 | $1.06B | 0.07% | +1,814,734+42.4% | Added |
| Clearbridge Investments, LLC | 6,423,531 | $1.11B | 0.97% | +1,346,838+26.5% | Added |
| Morgan Stanley | 6,473,992 | $1.12B | 0.07% | −396,739−5.8% | Reduced |
| Massachusetts Financial Services Co | 8,200,309 | $1.42B | 0.48% | −462,148−5.3% | Reduced |
| FMR LLC | 10,180,705 | $1.77B | 0.09% | −5,044,737−33.1% | Reduced |
| Price T Rowe Associates Inc | 10,976,286 | $1.90B | 0.22% | +1,758,408+19.1% | Added |
| Capital Research Global Investors | 11,301,188 | $1.96B | 0.30% | +3,313,394+41.5% | Added |
| Vanguard Portfolio Management LLC | 12,427,946 | $2.16B | 0.11% | +12,427,946 | New |
| Geode Capital Management, LLC | 13,404,172 | $2.32B | 0.14% | +1,760,147+15.1% | Added |
| Capital International Investors | 15,713,853 | $2.73B | 0.64% | −3,052,962−16.3% | Reduced |
| Wellington Management Group LLP | 17,370,709 | $3.01B | 0.56% | +1,372,829+8.6% | Added |
| Capital World Investors | 17,969,182 | $3.12B | 0.43% | +1,044,051+6.2% | Added |
| State Street Corp | 22,070,945 | $3.83B | 0.13% | +199,008+0.9% | Added |
| Vanguard Capital Management LLC | 31,467,674 | $5.46B | 0.14% | +31,467,674 | New |
| BlackRock, Inc. | 42,061,676 | $7.30B | 0.13% | +1,616,727+4.0% | Added |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −1,312,200−100.0% | Sold out |
| National Pension Service | 0 | $0 | 0.00% | −1,140,767−100.0% | Sold out |
| Findlay Park Partners LLP | 0 | $0 | 0.00% | −886,467−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −732,481−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −378,088−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −267,704−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −231,359−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −220,096−100.0% | Sold out |
| Polar Asset Management Partners Inc. | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −184,863−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −102,158−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −101,677−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −94,170−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −84,897−100.0% | Sold out |
| Gillson Capital LP | 0 | $0 | 0.00% | −69,600−100.0% | Sold out |
| AIA Group Ltd | 0 | $0 | 0.00% | −44,845−100.0% | Sold out |
| Cornerstone Advisors, LLC | 0 | $0 | 0.00% | −44,800−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −43,107−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −39,495−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −37,235−100.0% | Sold out |
| Sone Capital Management, LLC | 0 | $0 | 0.00% | −35,830−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −29,323−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −25,777−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −24,579−100.0% | Sold out |
| ISAM Funds (UK) Ltd | 0 | $0 | 0.00% | −24,119−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −22,134−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −19,894−100.0% | Sold out |
| PEAK6 LLC | 0 | $0 | 0.00% | −17,516−100.0% | Sold out |
| Axxcess Wealth Management, LLC | 0 | $0 | 0.00% | −17,500−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −17,425−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −17,311−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −16,200−100.0% | Sold out |
| Oak Thistle LLC | 0 | $0 | 0.00% | −16,107−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −16,070−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −15,448−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −15,168−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −15,066−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −13,767−100.0% | Sold out |
| Bouvel Investment Partners, LLC | 0 | $0 | 0.00% | −13,651−100.0% | Sold out |
| Delta Global Management LP | 0 | $0 | 0.00% | −12,157−100.0% | Sold out |
| R Squared Ltd | 0 | $0 | 0.00% | −10,685−100.0% | Sold out |
| HighPoint Advisor Group LLC | 0 | $0 | 0.00% | −10,523−100.0% | Sold out |
| Kepler Cheuvreux (Suisse) SA | 0 | $0 | 0.00% | −10,089−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Lecap Asset Management Ltd | 0 | $0 | 0.00% | −9,521−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −8,985−100.0% | Sold out |
| Financiere des Professionnels - Fonds d,investissement inc. | 0 | $0 | 0.00% | −8,398−100.0% | Sold out |
| Pensionfund Sabic | 0 | $0 | 0.00% | −8,300−100.0% | Sold out |
| Icon Wealth Advisors, LLC | 0 | $0 | 0.00% | −7,594−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −7,335−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −7,156−100.0% | Sold out |
| RCS Financial Planning, LLC | 0 | $0 | 0.00% | −6,703−100.0% | Sold out |