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
PS
951
Principal Securities
Iowa
$3.97M
BOCM
952
Bontempo Ohly Capital Management
Maryland
$3.96M
BG
953
BDF Gestion
France
$3.96M
AC
954
Annandale Capital
Texas
$3.95M
GVAG
955
Great Valley Advisor Group
Delaware
$3.95M
SIA
956
Soltis Investment Advisors
Utah
$3.95M
MFIM
957
Mesirow Financial Investment Management
Illinois
$3.94M
MPIM
958
McGinn Penninger Investment Management
Virginia
$3.93M
S
959
SignatureFD
Georgia
$3.92M
HCA
960
Harbor Capital Advisors
Illinois
$3.92M
HCM
961
Howland Capital Management
Massachusetts
$3.92M
IIM
962
Ipswich Investment Management
Massachusetts
$3.92M
WLPWM
963
Walled Lake Planning & Wealth Management
Illinois
$3.92M
VNA
964
Valley National Advisers
Pennsylvania
$3.91M
SWP
965
Sagespring Wealth Partners
Tennessee
$3.91M
EP
966
Edgestream Partners
New Jersey
$3.89M
CT
967
Caldwell Trust
Florida
$3.88M
NA
968
Nordwand Advisors
Pennsylvania
$3.87M
CCG
969
Chatham Capital Group
Georgia
$3.86M
Primecap Management
970
Primecap Management
California
$3.86M
AL
971
Arnhold LLC
New York
$3.86M
HCM
972
Hengehold Capital Management
Ohio
$3.85M
AIS
973
American Investment Services
Massachusetts
$3.85M
BFO
974
Boston Family Office
Massachusetts
$3.84M
SAG
975
SageView Advisory Group
California
$3.84M