3,253 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, 1,331 increasing their positions, 1,399 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: 1,331 | Existing positions reduced: 1,399

1% less funds holding

Funds holding: 3,2963,253 (-43)

2.2% less ownership

Funds ownership: 78.07%75.87% (-2.2%)

Holders
3,253
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
GMA
951
Glassy Mountain Advisors
Maryland
$3.99M
WC
952
Westerkirk Capital
$3.99M
PNC
953
Park National Corp
Ohio
$3.98M
PS
954
Principal Securities
Iowa
$3.97M
BOCM
955
Bontempo Ohly Capital Management
Maryland
$3.96M
BG
956
BDF Gestion
France
$3.96M
AC
957
Annandale Capital
Texas
$3.95M
GVAG
958
Great Valley Advisor Group
Delaware
$3.95M
SIA
959
Soltis Investment Advisors
Utah
$3.95M
MFIM
960
Mesirow Financial Investment Management
Illinois
$3.94M
MPIM
961
McGinn Penninger Investment Management
Virginia
$3.93M
S
962
SignatureFD
Georgia
$3.92M
HCA
963
Harbor Capital Advisors
Illinois
$3.92M
HCM
964
Howland Capital Management
Massachusetts
$3.92M
IIM
965
Ipswich Investment Management
Massachusetts
$3.92M
WLPWM
966
Walled Lake Planning & Wealth Management
Illinois
$3.92M
VNA
967
Valley National Advisers
Pennsylvania
$3.91M
SWP
968
Sagespring Wealth Partners
Tennessee
$3.91M
EP
969
Edgestream Partners
New Jersey
$3.89M
CT
970
Caldwell Trust
Florida
$3.88M
NA
971
Nordwand Advisors
Pennsylvania
$3.87M
CCG
972
Chatham Capital Group
Georgia
$3.86M
Primecap Management
973
Primecap Management
California
$3.86M
AL
974
Arnhold LLC
New York
$3.86M
HCM
975
Hengehold Capital Management
Ohio
$3.85M