Institutional Ownership
Marsh & Mclennan Cos Inc
CUSIP 571748102COMMRSHQ1 2026
Institutional Holders
1,511
13F filers
Shares Held
389.51M
Aggregate institutional
Institutional Value
$63.76B
Q1 2026
Net New Holders
-53
113 new · 166 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions113
Increased606
Decreased565
Sold out166
Institutional Holders
1,511 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Blackrock, Inc. | 42.06M | $7.30B | +1.62M | Added |
| 2 | State Street Corp | 22.07M | $3.83B | +199.0K | Added |
| 3 | Capital World Investors | 17.97M | $3.12B | +1.04M | Added |
| 4 | Wellington Management Group LLP | 17.37M | $3.01B | +1.37M | Added |
| 5 | Capital International Investors | 15.71M | $2.73B | −3.05M | Reduced |
| 6 | Geode Capital Management, LLC | 13.40M | $2.32B | +1.76M | Added |
| 7 | Capital Research Global Investors | 11.30M | $1.96B | +3.31M | Added |
| 8 | Fmr LLC | 10.18M | $1.77B | −5.04M | Reduced |
| 9 | Massachusetts Financial Services Co /Ma/ | 8.20M | $1.42B | −462.1K | Reduced |
| 10 | Morgan Stanley | 6.47M | $1.12B | −396.7K | Reduced |
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