3,294 hedge funds and large institutions have $160B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 189 funds opening new positions, 1,347 increasing their positions, 1,421 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: 3,3143,294 (-20)

5% less repeat investments, than reductions

Existing positions increased: 1,347 | Existing positions reduced: 1,421

2.2% less ownership

Funds ownership: 78.35%76.15% (-2.2%)

Holders
3,294
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
MIF
201
Mediolanum International Funds
Ireland
$70.5M
KeyBank National Association
202
KeyBank National Association
Ohio
$70.2M
GAM
203
Groupama Asset Management
France
$69.9M
FAF
204
Första AP-fonden
Sweden
$69.8M
Fidelity International
205
Fidelity International
Bermuda
$69.2M
William Blair & Company
206
William Blair & Company
Illinois
$68.2M
Jones Financial Companies
207
Jones Financial Companies
Missouri
$66.5M
SPS
208
Susquehanna Portfolio Strategies
Pennsylvania
$66.5M
BPC
209
Banque Pictet & Cie
Switzerland
$66.2M
Tudor Investment Corp
210
Tudor Investment Corp
Connecticut
$66.1M
DCM
211
Donaldson Capital Management
Indiana
$66M
CCM
212
Compass Capital Management
Minnesota
$66M
IC
213
IEQ Capital
California
$66M
JSSH
214
J. Safra Sarasin Holding
$64.8M
MSE
215
MUFG Securities EMEA
United Kingdom
$64.5M
Millennium Management
216
Millennium Management
New York
$64.1M
MT
217
Midwest Trust
Kansas
$63.7M
DnB Asset Management
218
DnB Asset Management
Norway
$62.8M
FWCM
219
Ferguson Wellman Capital Management
Oregon
$62.7M
HPG
220
Harvest Portfolios Group
Ontario, Canada
$62.6M
SOMRS
221
State of Michigan Retirement System
Michigan
$61.9M
ASRS
222
Arizona State Retirement System
Arizona
$61.6M
FFB
223
First Financial Bankshares
Texas
$60.5M
CB
224
Commerce Bank
Missouri
$60.3M
Mercer Global Advisors
225
Mercer Global Advisors
Colorado
$60.1M