3,244 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 191 funds opening new positions, 1,326 increasing their positions, 1,396 reducing their positions, and 147 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

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

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

5% less repeat investments, than reductions

Existing positions increased: 1,326 | Existing positions reduced: 1,396

1% less funds holding

Funds holding: 3,2933,244 (-49)

2.24% less ownership

Funds ownership: 78.03%75.78% (-2.2%)

Holders
3,244
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
46
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.83B
Puts
$2.51B
Net Calls
Net Calls Change

Top Sellers

1 -$863M
2 -$579M
3 -$452M
4
BlackRock
BlackRock
New York
-$291M
5
Goldman Sachs
Goldman Sachs
New York
-$283M
Name Holding Trade Value Shares
Change
Change in
Stake
William Blair & Company
201
William Blair & Company
Illinois
$68.2M
Jones Financial Companies
202
Jones Financial Companies
Missouri
$66.5M
SPS
203
Susquehanna Portfolio Strategies
Pennsylvania
$66.5M
BPC
204
Banque Pictet & Cie
Switzerland
$66.2M
Tudor Investment Corp
205
Tudor Investment Corp
Connecticut
$66.1M
DCM
206
Donaldson Capital Management
Indiana
$66M
CCM
207
Compass Capital Management
Minnesota
$66M
IC
208
IEQ Capital
California
$66M
JSSH
209
J. Safra Sarasin Holding
$64.8M
MSE
210
MUFG Securities EMEA
United Kingdom
$64.5M
Millennium Management
211
Millennium Management
New York
$64.1M
MT
212
Midwest Trust
Kansas
$63.7M
DnB Asset Management
213
DnB Asset Management
Norway
$62.8M
FWCM
214
Ferguson Wellman Capital Management
Oregon
$62.7M
HPG
215
Harvest Portfolios Group
Ontario, Canada
$62.6M
SOMRS
216
State of Michigan Retirement System
Michigan
$61.9M
ASRS
217
Arizona State Retirement System
Arizona
$61.6M
FFB
218
First Financial Bankshares
Texas
$60.5M
CB
219
Commerce Bank
Missouri
$60.3M
Mercer Global Advisors
220
Mercer Global Advisors
Colorado
$60.1M
GC
221
Guggenheim Capital
Illinois
$59.9M
ORIO
222
Old Republic International (ORI)
Illinois
$59.2M
Boston Partners
223
Boston Partners
Massachusetts
$59M
EIP
224
Epoch Investment Partners
New York
$58.2M
CLOS
225
Compagnie Lombard Odier SCmA
Switzerland
$58.2M