Marsh & McLennan Companies

MMC • NYSE

Marsh & McLennan Companies is a insurance - brokers company in the financial services sector on NYSE, led by Daniel S. Glaser, with a market cap of $89.9B. As of Q3 2025, 88% of shares are held by 1,529 institutional investors, with VANGUARD GROUP INC as the largest holder at 9.4%.

President and Chief Executive OfficerDaniel S. Glaser

Market Cap$89.9B

Insurance - Brokers

Financial Services

Employees85.0K

Websitemarshmclennan.com

Country

United States of America

Overview

Overview of institutional ownership in MMC as of Q3 2025 with a market cap of $99.1B

All Institutions

Institutions: 1,529
Value Held: $86.7B
Shares Held: 430.4M
Avg Position: $56.7M
Median Position: $948.4K

Hedge Funds

Hedge Funds: 80
Value Held: $2.1B
Shares Held: 10.6M
Avg Position: $26.6M
Median Position: $2.1M

Ownership Breakdown

Institutional (non-HF)

85.37%

$84.6B

Hedge Funds

2.15%

$2.1B

Retail & Other

12.48%

$12.4B

Based on market cap of $99.1B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in MMC as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
VANGUARD GROUP INC Institution	Salim Ramji CEO	$9.3B 0.14% of portfolio	9.40% 46.2M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
B BlackRock, Inc. Institution	-	$7.8B 0.14% of portfolio	7.89% 38.8M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$4.3B 0.15% of portfolio	4.38% 21.5M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
C Capital International Investors Institution	-	$3.7B 0.61% of portfolio	3.78% 18.6M shares	≤ Q2 2013 Held for 12y 5m+	$615.90B
C Capital World Investors Institution	-	$3.6B 0.49% of portfolio	3.60% 17.7M shares	≤ Q2 2013 Held for 12y 5m+	$730.00B
FMR LLC Institution	-	$3.3B 0.17% of portfolio	3.35% 16.5M shares	≤ Q2 2013 Held for 12y 5m+	$1.92T
WELLINGTON MANAGEMENT CO LLP Long Only Manager	Jean Marie Hynes CEO	$3.0B 0.53% of portfolio	3.07% 15.1M shares	≤ Q2 2013 Held for 12y 5m+	$571.21B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$2.6B 0.17% of portfolio	2.64% 13.0M shares	≤ Q2 2013 Held for 12y 5m+	$1.57T
Capital Research Global Investors RIA/Wealth	Maria Alejandra Herrera CIO	$2.0B 0.37% of portfolio	2.01% 9.9M shares	≤ Q2 2013 Held for 12y 5m+	$532.36B
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Long Only Manager	Edward Murray Maloney CEO	$1.9B 0.59% of portfolio	1.93% 9.5M shares	Q2 2019 Held for 6y 5m	$322.72B

Net Capital Flow

Institutional buying and selling activity for MMC in Q3 2025

Traded: −$872.6M
Buyers: 695
Sellers: 733
Total Bought: +$4.6B
Total Sold: −$5.4B
Avg Position: $51.6M

Biggest Buyers

Institution	Net Bought	Current Position
Clearbridge Investments, LLC Long Only Manager	+$393.8M +2.0M shares	$910.3M 4.5M shares
D D. E. Shaw & Co., Inc. Institution	+$276.5M +1.4M shares	$519.3M 2.6M shares
WELLINGTON MANAGEMENT CO LLP Long Only Manager	+$254.0M +1.3M shares	$3.0B 15.1M shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	+$248.1M +1.2M shares	$286.0M 1.4M shares
TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy	+$177.2M +879.3K shares	$263.9M 1.3M shares
S Swedbank AB Institution	+$163.9M +813.1K shares	$220.3M 1.1M shares
B BNP PARIBAS ARBITRAGE, SA Institution	+$163.7M +812.2K shares	$265.9M 1.3M shares
Invesco Ltd. ETF Provider	+$151.9M +753.8K shares	$663.7M 3.3M shares
VOLORIDGE INVESTMENT MANAGEMENT, LLC Hedge Fund•Multi-Strategy	+$134.2M +666.0K shares	$278.0M 1.4M shares
BARCLAYS PLC Institution	+$130.6M +648.0K shares	$443.8M 2.2M shares

Biggest Sellers

Institution	Net Sold	Current Position
FMR LLC Institution	−$721.9M −3.6M shares	$3.3B 16.5M shares
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	−$341.2M −1.7M shares	$1.7B 8.3M shares
B BlackRock, Inc. Institution	−$299.9M −1.5M shares	$7.8B 38.8M shares
A Amundi Institution	−$284.8M −1.4M shares	$297.6M 1.5M shares
N NIPPON LIFE INSURANCE CO Institution	−$264.3M −1.3M shares	$264.3M 1.3M shares
I Investec Asset Management LTD Long Only Manager	−$238.0M −1.2M shares	$271.4M 1.3M shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$234.4M −1.2M shares	$915.7M 4.5M shares
AMERIPRISE FINANCIAL INC Institution	−$216.2M −1.1M shares	$1.2B 5.8M shares
WELLS FARGO & COMPANY/MN Institution	−$180.5M −895.8K shares	$537.7M 2.7M shares
Mawer Investment Management Ltd. Long Only Manager	−$161.7M −802.2K shares	$921.5M 4.6M shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited MMC in Q3 2025

New Positions: 68
New Value: $216.3M
Exited Positions: 152
Exited Value: $430.9M

New Positions

Institution	Position Value
CINCINNATI FINANCIAL CORP Institution	$56.1M 278.3K shares
C CINCINNATI INSURANCE CO Institution	$55.6M 275.8K shares
WAYCROSS PARTNERS, LLC Hedge Fund•Long/Short	$28.1M 139.5K shares
D DEPRINCE RACE & ZOLLO INC Long Only Manager	$19.3M 95.7K shares
Morningstar Investment Management LLC Long Only Manager	$11.8M 58.4K shares
Synergy Financial Management, LLC RIA/Wealth	$9.3M 46.1K shares
C Capitolis Liquid Global Markets LLC Private Equity	$6.0M 29.8K shares
Lighthouse Investment Partners, LLC Fund of Funds	$4.9M 24.2K shares
YACKTMAN ASSET MANAGEMENT LP Long Only Manager	$3.5M 17.3K shares
A ABC ARBITRAGE SA Institution	$2.8M 14.1K shares

Exited Positions

Institution	Previous Position
C Cubist Systematic Strategies, LLC Institution	$56.2M 257.2K shares
Susquehanna Portfolio Strategies, LLC Private Equity	$43.2M 197.6K shares
A AXA Institution	$41.5M 189.8K shares
Dundas Partners LLP Long Only Manager	$41.0M 187.5K shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	$36.6M 167.5K shares
R Railway Pension Investments Ltd Institution	$22.5M 102.8K shares
Kames Capital plc Long Only Manager	$19.6M 89.8K shares
N Nearwater Capital Markets, Ltd Institution	$15.4M 70.5K shares
T TEXAS PERMANENT SCHOOL FUND Institution	$11.6M 53.2K shares
Symphony Financial, Ltd. Co. RIA/Wealth	$11.2M 51.1K shares

Options Activity

Institutions with the largest Call and Put options positions in MMC as of Q3 2025

Call Positions: 23
Call Value: $115.4M
Put Positions: 24
Put Value: $102.0M

Call Positions

Institution	Position Value
Oribel Capital Management, LP Hedge Fund•Long/Short	$29.2M 1.5K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$24.0M 1.2K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$17.4M 861.0 contracts
J JANE STREET GROUP, LLC Institution	$11.7M 583.0 contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$5.7M 281.0 contracts
W WOLVERINE TRADING, LLC Institution	$5.6M 279.0 contracts
BOOTHBAY FUND MANAGEMENT, LLC Fund of Funds	$5.5M 275.0 contracts
C Cubist Systematic Strategies, LLC Institution	$4.3M 214.0 contracts
A Allianz Asset Management AG Institution	$3.0M 148.0 contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$2.8M 138.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$51.1M 2.5K contracts
W WOLVERINE TRADING, LLC Institution	$12.9M 645.0 contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$6.3M 314.0 contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$5.3M 265.0 contracts
A Allianz Asset Management AG Institution	$4.6M 229.0 contracts
Lido Advisors, LLC RIA/Wealth	$3.3M 165.0 contracts
B Bayview Asset Management, LLC Hedge Fund•Multi-Strategy	$3.0M 150.0 contracts
UBS Group AG Institution	$3.0M 147.0 contracts
J JANE STREET GROUP, LLC Institution	$2.4M 117.0 contracts
V Volterra Technologies LP Hedge Fund•Quant	$2.2M 110.0 contracts

Most Committed Institutions

Institutions with MMC as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
B Bancreek Capital Management, LP Hedge Fund•Value	Andrew Loren Skatoff CIO	6.99% $3.3M	0.00% 16.5K shares	Q1 2024 Held for 1y 8m	$47.7M
V Veritas Investment Partners Ltd. Institution	-	6.27% $327.3M	0.33% 1.6M shares	Q4 2020 Held for 4y 11m	$5.2B
JENSEN INVESTMENT MANAGEMENT INC Long Only Manager	Robert David Mciver President	6.02% $485.0M	0.49% 2.4M shares	Q2 2021 Held for 4y 5m	$8.1B
A AKO CAPITAL LLP Institution	-	5.16% $362.7M	0.37% 1.8M shares	Q2 2023 Held for 2y 5m	$7.0B
Mawer Investment Management Ltd. Long Only Manager	Geoffrey Grafton Ritchie Chairman	4.79% $921.5M	0.93% 4.6M shares	≤ Q2 2013 Held for 12y 5m+	$19.3B
N NIPPON LIFE INSURANCE CO Institution	-	4.45% $264.3M	0.27% 1.3M shares	≤ Q2 2013 Held for 12y 5m+	$5.9B
Longview Partners LTD Long Only Manager	Elizabeth Mary Kate Campbell Managing Partner	4.40% $421.0M	0.42% 2.1M shares	Q2 2021 Held for 4y 5m	$9.6B
B Bristol Gate Capital Partners Inc. Long Only Manager	Gerald Richard Hamm CEO	4.12% $69.8M	0.07% 346.2K shares	Q1 2024 Held for 1y 8m	$1.7B
J O Hambro Investment Management Ltd RIA/Wealth	Guy Andrew Mcglashan CEO	4.05% $314.6M	0.32% 1.6M shares	≤ Q2 2013 Held for 12y 5m+	$7.8B
C Cryder Capital Partners LLP Institution	-	4.01% $72.7M	0.07% 360.6K shares	Q2 2025 Held for 5 months	$1.8B

Hedge Fund Spotlight

Discover hedge funds investing in MMC

CARLSON CAPITAL L P

Hedge Fund • Multi-Strategy

Portfolio ManagerClint Duane Carlson

Portfolio Value: $176.5M
Positions: 55
Last Reported: Q3 2025

Sector Allocation

Position in Marsh & McLennan Companies

Market Value: $201.5K
Shares Held: 1.0K
Portfolio Weight: 0.11%
Owned Since: 2025-Q3

Top Holding	Sector	Market Value	Weight
1 Stanley Black & Decker SWKH	Asset Management Financial Services	$123.6M	70.03%
2 Kellanova K	Packaged Foods Consumer Defensive	$3.9M	2.23%
3 VRNA Verona Pharma VRNA	Unknown Unknown	$3.5M	2.00%

View full profile

Marsh & McLennan Companies

Overview

All Institutions

Hedge Funds

Ownership Breakdown

Biggest Investors

Net Capital Flow

Biggest Buyers

Biggest Sellers

Entry and Exit Activity

New Positions

Exited Positions

Options Activity

Call Positions

Put Positions

Most Committed Institutions

Hedge Fund Spotlight

Position in Marsh & McLennan Companies

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