# MARSH & MCLENNAN COS INC COM

MARSH & MCLENNAN COS INC COM is a security (CUSIP 571748102) tracked across SEC portfolio filings. 1,575 institutional managers reported $70.4B on Form 13F as of 2026-06-30; 135 registered fund positions totaling $10.1B via N-PORT as of 2026-05-31.

## Summary

- Issuer: MARSH & MCLENNAN COS INC
- Class: COM
- CUSIP: 571748102
- Asset category: EC
- 13F holders: 1,575
- 13F value: $70.4B
- 13F period: 2026-06-30
- N-PORT fund positions: 135
- N-PORT value: $10.1B
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 1,575 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $8.6B | 46,589,633 |
| BlackRock, Inc. | New York, NY | $7.3B | 42,061,676 |
| STATE STREET CORP | BOSTON, MA | $3.8B | 22,070,945 |
| Capital World Investors | LOS ANGELES, CA | $3.1B | 17,969,182 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $3.0B | 17,370,709 |
| Capital International Investors | Los Angeles, CA | $2.7B | 15,713,853 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $2.3B | 13,404,172 |
| Capital Research Global Investors | Los Angeles, CA | $2.0B | 11,301,188 |
| FMR LLC | BOSTON, MA | $1.8B | 10,180,705 |
| MORGAN STANLEY | NEW YORK, NY | $1.1B | 6,473,992 |
| [Clearbridge Investments, LLC](https://search.stillhousedata.com/firm/137028) | New York, NY | $1.1B | 6,423,531 |
| [MASSACHUSETTS FINANCIAL SERVICES CO /MA/](https://search.stillhousedata.com/firm/110045) | Boston, MA | $1.1B | 6,507,415 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $1.1B | 6,093,392 |
| UBS ASSET MANAGEMENT AMERICAS INC | CHICAGO, IL | $898.9M | 5,182,517 |
| [HARRIS ASSOCIATES L P](https://search.stillhousedata.com/firm/106960) | CHICAGO, IL | $896.6M | 5,169,119 |

## Top fund holders (N-PORT)

_Showing 15 of 135 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Washington Mutual Investors Fund](https://search.stillhousedata.com/fund/S000009388) | Washington Mutual Investors Fund | $3.4B | 156.54% |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | State Street(R) SPDR(R) S&P 500(R) ETF Trust | $977.1M | 14.99% |
| [Investment Co of America](https://search.stillhousedata.com/fund/S000009597) | Investment Co of America | $657.0M | 39.59% |
| [American Funds Fundamental Investors](https://search.stillhousedata.com/fund/S000009227) | American Funds Fundamental Investors | $615.5M | 39.97% |
| [American Balanced Fund](https://search.stillhousedata.com/fund/S000008801) | American Balanced Fund | $521.7M | 19.77% |
| [American Mutual Fund](https://search.stillhousedata.com/fund/S000008999) | American Mutual Fund | $452.0M | 39.38% |
| [Growth Fund of America](https://search.stillhousedata.com/fund/S000009228) | Growth Fund of America | $366.4M | 10.15% |
| [T. Rowe Price Dividend Growth Fund, Inc.](https://search.stillhousedata.com/fund/S000002075) | T. ROWE PRICE DIVIDEND GROWTH FUND, INC. | $296.8M | 130.97% |
| [Capital Income Builder](https://search.stillhousedata.com/fund/S000009000) | Capital Income Builder | $231.3M | 18.24% |
| [Franklin Rising Dividends Fund](https://search.stillhousedata.com/fund/S000006858) | Franklin Managed Trust | $209.9M | 81.41% |
| [T. Rowe Price All-Cap Opportunities Fund](https://search.stillhousedata.com/fund/S000002104) | T. Rowe Price All-Cap Opportunities Fund, Inc. | $180.4M | 125.69% |
| [Capital World Growth & Income Fund](https://search.stillhousedata.com/fund/S000009001) | Capital World Growth & Income Fund | $175.7M | 11.00% |
| [T. Rowe Price Blue Chip Growth Fund, Inc.](https://search.stillhousedata.com/fund/S000002069) | T. ROWE PRICE BLUE CHIP GROWTH FUND, INC. | $168.3M | 28.62% |
| [Invesco S&P 500 Equal Weight ETF](https://search.stillhousedata.com/fund/S000060812) | Invesco Exchange-Traded Fund Trust | $162.6M | 18.51% |
| [Fidelity Series Value Discovery Fund](https://search.stillhousedata.com/fund/S000039216) | Fidelity Devonshire Trust | $128.1M | 80.27% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/571748102.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.