3,616 hedge funds and large institutions have $207B invested in Merck in 2025 Q4 according to their latest regulatory filings, with 526 funds opening new positions, 1,366 increasing their positions, 1,393 reducing their positions, and 130 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more call options, than puts

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

more capital invested

Capital invested by funds: $ → $

10% more funds holding

Funds holding: 3,2953,616 (+321)

3.22% more ownership

Funds ownership: 76.15%79.37% (+3.2%)

2% less repeat investments, than reductions

Existing positions increased: 1,366 | Existing positions reduced: 1,393

Holders
3,616
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
76
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.76B
Puts
$2.62B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
TLP
3626
Tri Locum Partners
New York
RL
3627
Ruffer LLP
United Kingdom
DRZID
3628
DePrince Race & Zollo Inc (DRZ)
Florida
SCM
3629
Suvretta Capital Management
New York
NCM
3630
Nearwater Capital Markets
Ireland
SCM
3631
Sio Capital Management
New York
PP
3632
Prospector Partners
Connecticut
OC
3633
Optimas Capital
Hong Kong
WG
3634
Winton Group
United Kingdom
ET
3635
Entropy Technologies
New York
NSEDCP
3636
NJ State Employees Deferred Compensation Plan
New Jersey
BJL
3637
Brighton Jones LLC
Washington
ELI
3638
Empire Life Investments
Ontario, Canada
QT
3639
Quantbot Technologies
New York
LOIM
3640
Liberty One Investment Management
Illinois
IFU
3641
iSAM Funds (UK)
United Kingdom
Group One Trading
3642
Group One Trading
Illinois
AAMU
3643
APG Asset Management US
New York
Simplex Trading
3644
Simplex Trading
Illinois
KSCM
3645
Kamunting Street Capital Management
Florida
MIC
3646
Mubadala Investment Company
United Arab Emirates
GMA
3647
Glassy Mountain Advisors
Maryland
AC
3648
Arrow Capital
Australia
XT
3649
XTX Topco
Cayman Islands
SC
3650
SummitTX Capital
Texas