3,288 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 189 funds opening new positions, 1,344 increasing their positions, 1,419 reducing their positions, and 150 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: $ → $

1% less funds holding

Funds holding: 3,3093,288 (-21)

5% less repeat investments, than reductions

Existing positions increased: 1,344 | Existing positions reduced: 1,419

2.22% less ownership

Funds ownership: 78.27%76.05% (-2.2%)

Holders
3,288
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 -$847M
2 -$568M
3 -$443M
4
BlackRock
BlackRock
New York
-$285M
5
Goldman Sachs
Goldman Sachs
New York
-$278M
Name Holding Trade Value Shares
Change
Change in
Stake
KeyBank National Association
201
KeyBank National Association
Ohio
$70.2M
GAM
202
Groupama Asset Management
France
$69.9M
FAF
203
Första AP-fonden
Sweden
$69.8M
Fidelity International
204
Fidelity International
Bermuda
$69.2M
William Blair & Company
205
William Blair & Company
Illinois
$68.2M
Jones Financial Companies
206
Jones Financial Companies
Missouri
$66.5M
SPS
207
Susquehanna Portfolio Strategies
Pennsylvania
$66.5M
BPC
208
Banque Pictet & Cie
Switzerland
$66.2M
Tudor Investment Corp
209
Tudor Investment Corp
Connecticut
$66.1M
DCM
210
Donaldson Capital Management
Indiana
$66M
CCM
211
Compass Capital Management
Minnesota
$66M
IC
212
IEQ Capital
California
$66M
JSSH
213
J. Safra Sarasin Holding
$64.8M
MSE
214
MUFG Securities EMEA
United Kingdom
$64.5M
Millennium Management
215
Millennium Management
New York
$64.1M
MT
216
Midwest Trust
Kansas
$63.7M
DnB Asset Management
217
DnB Asset Management
Norway
$62.8M
FWCM
218
Ferguson Wellman Capital Management
Oregon
$62.7M
HPG
219
Harvest Portfolios Group
Ontario, Canada
$62.6M
SOMRS
220
State of Michigan Retirement System
Michigan
$61.9M
ASRS
221
Arizona State Retirement System
Arizona
$61.6M
FFB
222
First Financial Bankshares
Texas
$60.5M
CB
223
Commerce Bank
Missouri
$60.3M
Mercer Global Advisors
224
Mercer Global Advisors
Colorado
$60.1M
GC
225
Guggenheim Capital
Illinois
$59.9M