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3,648 hedge funds and large institutions have $207B invested in Merck in 2025 Q4 according to their latest regulatory filings, with 544 funds opening new positions, 1,372 increasing their positions, 1,398 reducing their positions, and 131 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more call options, than puts

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

more capital invested

Capital invested by funds: $ → $

10% more funds holding

Funds holding: 3,3073,648 (+341)

2.9% more ownership

Funds ownership: 76.23%79.13% (+2.9%)

2% less repeat investments, than reductions

Existing positions increased: 1,372 | Existing positions reduced: 1,398

Holders
3,648
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
77
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.76B
Puts
$2.62B
Net Calls
Net Calls Change

Top Buyers

1 +$1.05B
2 +$696M
3 +$567M
4
Citadel Advisors
Citadel Advisors
Florida
+$549M
5
Jennison Associates
Jennison Associates
New York
+$522M
Name Holding Trade Value Shares
Change
Change in
Stake
DZ Bank
126
DZ Bank
Germany
$184M
Fayez Sarofim & Co
127
Fayez Sarofim & Co
Texas
$183M
Rockefeller Capital Management
128
Rockefeller Capital Management
New York
$181M
Cerity Partners
129
Cerity Partners
New York
$181M
SAM
130
Storebrand Asset Management
Norway
$178M
Schroder Investment Management Group
131
Schroder Investment Management Group
United Kingdom
$178M
GLA
132
Great Lakes Advisors
Illinois
$177M
CAPTRUST Financial Advisors
133
CAPTRUST Financial Advisors
North Carolina
$175M
ATO
134
Alecta Tjanstepension Omsesidigt
Sweden
$173M
Mitsubishi UFJ Trust & Banking
135
Mitsubishi UFJ Trust & Banking
Japan
$171M
MIP
136
Mondrian Investment Partners
United Kingdom
$169M
Acadian Asset Management
137
Acadian Asset Management
Massachusetts
$168M
US Bancorp
138
US Bancorp
Minnesota
$166M
Alyeska Investment Group
139
Alyeska Investment Group
Illinois
$166M
AP
140
Antipodes Partners
Australia
$166M
PPF
141
PFA Pension Forsikringsaktieselskab
$161M
M&T Bank
142
M&T Bank
New York
$155M
Mackenzie Financial
143
Mackenzie Financial
Ontario, Canada
$155M
Pictet Asset Management
144
Pictet Asset Management
Switzerland
$154M
Susquehanna International Group
145
Susquehanna International Group
Pennsylvania
$154M
Focus Partners Wealth
146
Focus Partners Wealth
Massachusetts
$150M
APG Asset Management
147
APG Asset Management
Netherlands
$148M
SG Americas Securities
148
SG Americas Securities
New York
$146M
Nomura Asset Management
149
Nomura Asset Management
Japan
$146M
Artisan Partners
150
Artisan Partners
Wisconsin
$146M