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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
Toronto Dominion Bank
176
Toronto Dominion Bank
Ontario, Canada
$118M
UM
177
UniSuper Management
Australia
$116M
ZIM
178
Zacks Investment Management
Illinois
$114M
Ohio Public Employees Retirement System (OPERS)
179
Ohio Public Employees Retirement System (OPERS)
Ohio
$111M
CCM
180
Causeway Capital Management
California
$110M
Carson Wealth (CWM LLC)
181
Carson Wealth (CWM LLC)
Nebraska
$107M
QCM
182
Quantinno Capital Management
New York
$106M
WP
183
Woodline Partners
California
$106M
MR
184
Munich Reinsurance
$105M
CI Investments Inc
185
CI Investments Inc
Ontario, Canada
$105M
State of Tennessee, Department of Treasury
186
State of Tennessee, Department of Treasury
Tennessee
$104M
Luther King Capital Management (LKCM)
187
Luther King Capital Management (LKCM)
Texas
$103M
MSV
188
MN Services Vermogensbeheer
Netherlands
$103M
CRM
189
Cardano Risk Management
Netherlands
$101M
DnB Asset Management
190
DnB Asset Management
Norway
$100M
IC
191
IEQ Capital
California
$99.1M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
192
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$98.3M
Comerica Bank
193
Comerica Bank
Texas
$98.2M
CB
194
Commerce Bank
Missouri
$98.2M
MIF
195
Mediolanum International Funds
Ireland
$97.1M
JSSH
196
J. Safra Sarasin Holding
$96.9M
SP
197
Sarasin & Partners
United Kingdom
$96.3M
Allspring Global Investments
198
Allspring Global Investments
North Carolina
$96.1M
BGIM
199
Brandywine Global Investment Management
Pennsylvania
$95.3M
GAM
200
Groupama Asset Management
France
$94.8M