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Marsh & McLennan

1,554 hedge funds and large institutions have $86.9B invested in Marsh & McLennan in 2025 Q3 according to their latest regulatory filings, with 147 funds opening new positions, 548 increasing their positions, 602 reducing their positions, and 156 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

less first-time investments, than exits

New positions opened: | Existing positions closed:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less funds holding

Funds holding:

2.89% less ownership

Funds ownership: 90.63%87.74% (-2.9%)

10% less capital invested

Capital invested by funds: $96.9B → $86.9B (-$9.97B)

11% less funds holding in top 10

Funds holding in top 10: 1917 (-2)

Holders
1,554
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
17
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$125M
Puts
$113M
Net Calls
Net Calls Change

Top Buyers

1 +$394M
2 +$277M
3 +$254M
4
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$248M
5
Two Sigma Advisers
Two Sigma Advisers
New York
+$177M

Top Sellers

1 -$722M
2 -$341M
3 -$300M
4
Amundi
Amundi
France
-$285M
5
NLI
Nippon Life Insurance
Japan
-$264M
Name Holding Trade Value Shares
Change
Change in
Stake
HVIA
351
Hudson Valley Investment Advisors
New York
$9.49M
William Blair & Company
352
William Blair & Company
Illinois
$9.39M
EGM
353
Engineers Gate Manager
New York
$9.32M
VLKIM
354
Van Lanschot Kempen Investment Management
Netherlands
$9.3M
SAM
355
Synergy Asset Management
Washington
$9.29M
SPIA
356
Steward Partners Investment Advisory
New York
$9.07M
CA
357
Cornerstone Advisors
North Carolina
$9.03M
KCG
358
Kinsale Capital Group
Virginia
$8.81M
Verition Fund Management
359
Verition Fund Management
Connecticut
$8.73M
SCTC
360
Sanibel Captiva Trust Company
Florida
$8.73M
Vontobel Holding
361
Vontobel Holding
Switzerland
$8.58M
SCA
362
Stokes Capital Advisors
South Carolina
$8.58M
MML Investors Services
363
MML Investors Services
Massachusetts
$8.37M
SICM
364
Sustainable Insight Capital Management
New York
$8.29M
Northwestern Mutual Wealth Management
365
Northwestern Mutual Wealth Management
Wisconsin
$8.29M
VIM
366
Vinva Investment Management
Australia
$8.26M
AF
367
Avanza Fonder
Sweden
$8.01M
MAM
368
Martingale Asset Management
Massachusetts
$7.99M
Pacer Advisors
369
Pacer Advisors
Pennsylvania
$7.98M
UM
370
UniSuper Management
Australia
$7.97M
IMRF
371
Illinois Municipal Retirement Fund
Illinois
$7.91M
DCM
372
Dupont Capital Management
Delaware
$7.89M
VI
373
Vestcor Inc
New Brunswick, Canada
$7.88M
CI
374
CX Institutional
Indiana
$7.88M
BIG
375
Builder Investment Group
Georgia
$7.88M