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Marsh & McLennan
MMC

Overview Fund Activity

1,605 hedge funds and large institutions have $106B invested in Marsh & McLennan in 2025 Q1 according to their latest regulatory filings, with 176 funds opening new positions, 619 increasing their positions, 557 reducing their positions, and 98 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,605
Holders Change
+45
Holders Change %
+2.88%
% of All Funds
21.8%
Holding in Top 10
36
Holding in Top 10 Change
+16
Holding in Top 10 Change %
+80%
% of All Funds
0.49%
New
176
Increased
619
Reduced
557
Closed
98
Calls
$112M
Puts
$97.4M
Net Calls
+$14.4M
Net Calls Change
+$16.3M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
+$1.1B
2
Capital Research Global Investors
Capital Research Global Investors
California
+$1.02B
3
Ninety One (UK)
Ninety One (UK)
United Kingdom
+$350M
4
Fidelity Investments
Fidelity Investments
Massachusetts
+$224M
5
Bank of America
Bank of America
North Carolina
+$155M

Top Sellers

1
Amundi
Amundi
France
-$621M
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$396M
3
AIM
Alphinity Investment Management
Australia
-$391M
4
Impax Asset Management Group
Impax Asset Management Group
United Kingdom
-$268M
5
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
-$267M
Name Holding Trade Value Shares
Change 		Shares
Change %
CPCPP
1626
Canada Post Corporation Pension Plan
Canada
– -$3.46M -16,283 Closed
BCM
1627
Bayesian Capital Management
New York
– -$3.21M -15,125 Closed
PCM
1628
Prana Capital Management
Connecticut
– -$2.88M -13,562 Closed
MF
1629
Magnetar Financial
Illinois
– -$2.73M -12,841 Closed
UOTTAIMCU
1630
University of Texas/Texas AM Investment Management Co (UTIMCO)
Texas
– -$2.49M -11,707 Closed
Marshall Wace
1631
Marshall Wace
United Kingdom
– -$2.38M -11,188 Closed
CFGS
1632
Concourse Financial Group Securities
Alabama
– -$2.35M -10,825 Closed
Capstone Investment Advisors
1633
Capstone Investment Advisors
New York
– -$2.18M -10,275 Closed
RAM
1634
Readystate Asset Management
Illinois
– -$1.93M -9,108 Closed
I
1635
InceptionR
California
– -$1.91M -8,974 Closed
NRD
1636
Nebula Research & Development
New York
– -$1.72M -8,115 Closed
HT
1637
Headlands Technologies
Illinois
– -$1.69M -7,978 Closed
PP
1638
PDT Partners
New York
– -$1.67M -7,854 Closed
Walleye Capital
1639
Walleye Capital
New York
– -$1.54M -7,235 Closed
HCM
1640
Highview Capital Management
Illinois
– -$1.32M -6,204 Closed
KPP
1641
Kings Path Partners
Texas
– -$1.19M -5,625 Closed
FCA
1642
Fortis Capital Advisors
Kansas
– -$1.27M -5,563 Closed
TC
1643
TwinBeech Capital
New York
– -$1.14M -5,383 Closed
SCM
1644
Stevens Capital Management
Pennsylvania
– -$1.05M -4,964 Closed
WP
1645
Woodline Partners
California
– -$821K -3,864 Closed
OAM
1646
Oxford Asset Management
United Kingdom
– -$768K -3,615 Closed
DAS
1647
Diversify Advisory Services
Utah
– -$733K -3,504 Closed
PCM
1648
Polymer Capital Management
New York
– -$705K -3,320 Closed
RS
1649
R Squared
Hong Kong
– -$678K -3,190 Closed
RCM
1650
Requisite Capital Management
Texas
– -$597K -2,809 Closed
64 65
66
67 68