Who Owns MRSH?
Marsh & McLennan Companies, Inc. — Institutional Ownership & 13F Holdings
$171.08
+1.02 (+0.60%)
Market Cap
$84.3B
Shares Outstanding
481,795,000
Institutional Holders
1,582
Total Inst. Value
$784.0B
% of Float Held
90.5%
QoQ Holder Change
+591
Institutional data as of Q1 2025
New Positions
402
Closed Positions
108
Increased
540
Decreased
459
Institutional Ownership Trend
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | PRIMECAP MANAGEMENT CO/CA/ | $655.9B | 2,687,926 |
| 2 | CANADA PENSION PLAN INVESTMENT BOARD | $32.2B | 132,155 |
| 3 | VANGUARD GROUP INC | $11.1B | 45,321,445 |
| 4 | BlackRock, Inc. | $9.9B | 40,601,219 |
| 5 | FMR LLC | $5.4B | 22,151,590 |
| 6 | STATE STREET CORP | $5.2B | 21,490,479 |
| 7 | Capital International Investors | $4.5B | 18,274,214 |
| 8 | Capital World Investors | $4.3B | 17,651,003 |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | $3.1B | 12,814,788 |
| 10 | Mawer Investment Management Ltd. | $3.0B | 5,972,112 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| CANADA PENSION PLAN INVESTMENT BOARD | +9K | $32.2B |
| VANGUARD GROUP INC | +582K | $11.1B |
| FMR LLC | +917K | $5.4B |
| STATE STREET CORP | +239K | $5.2B |
| Capital International Investors | +30K | $4.5B |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| Amundi | -2.5M | $373.5M |
| PRICE T ROWE ASSOCIATES INC /MD/ | -1.6M | $2.1B |
| Alphinity Investment Management Pty Ltd | -1.6M | $202.0M |
| Assenagon Asset Management S.A. | -1.1M | $3.8M |
| BlackRock, Inc. | -1.0M | $9.9B |
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Frequently Asked Questions
How many institutional investors hold MRSH?
As of Q1 2025, 1582 institutional investors report holding MRSH (Marsh & McLennan Companies, Inc.) in their 13F filings.
What percentage of Marsh & McLennan Companies, Inc. is owned by institutions?
Institutional investors hold approximately 90.5% of Marsh & McLennan Companies, Inc.'s float as reported in SEC 13F filings.
Which hedge fund owns the most MRSH?
The largest institutional holder of MRSH is PRIMECAP MANAGEMENT CO/CA/ with $655.9B in shares.
Are institutions buying or selling MRSH?
This quarter, 402 institutions opened new positions in MRSH and 108 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.