Marsh & McLennan Companies, Inc. (MRSH) ownership: Top institutional holder: VANGUARD GROUP INC ($8.64B). Insider activity: Net Seller (1 buys, 19 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 46589633.00 | $8.64B | 2025-12-31 |
| BlackRock, Inc. | 42061676.00 | $7.30B | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31467674.00 | $5.46B | 2026-03-31 |
| STATE STREET CORP | 22070945.00 | $3.83B | 2026-03-31 |
| Capital World Investors | 17969182.00 | $3.12B | 2026-03-31 |
| WELLINGTON MANAGEMENT GROUP LLP | 17370709.00 | $3.01B | 2026-03-31 |
| Capital International Investors | 15713853.00 | $2.73B | 2026-03-31 |
| GEODE CAPITAL MANAGEMENT, LLC | 13404172.00 | $2.32B | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-02 | |
| Sell | null | 2026-06-02 | |
| Sell | null | 2026-06-02 | |
| Sell | null | 2026-06-01 | |
| Sell | null | 2026-06-01 | |
| Sell | null | 2026-06-01 | |
| Buy | null | 2026-06-01 | |
| Sell | null | 2026-06-01 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.