3,582 hedge funds and large institutions have $207B invested in Merck in 2025 Q4 according to their latest regulatory filings, with 506 funds opening new positions, 1,362 increasing their positions, 1,384 reducing their positions, and 129 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: $ → $

9% more funds holding

Funds holding: 3,2893,582 (+293)

3.3% more ownership

Funds ownership: 76.04%79.34% (+3.3%)

2% less repeat investments, than reductions

Existing positions increased: 1,362 | Existing positions reduced: 1,384

Holders
3,582
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
77
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.75B
Puts
$2.61B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
1C
3626
111 Capital
France
ZP
3627
Zimmer Partners
New York
IMC Chicago
3628
IMC Chicago
Illinois
OQS
3629
Occudo Quantitative Strategies
Florida
GA
3630
GraniteShares Advisors
New York
LAM
3631
LECAP Asset Management
United Kingdom
MTIM
3632
Marathon Trading Investment Management
Pennsylvania
Blackstone Inc
3633
Blackstone Inc
New York
QC
3634
Quadrature Capital
United Kingdom
CII
3635
Capital International Inc
California
P
3636
Pitcairn
Pennsylvania
TCWM
3637
Total Clarity Wealth Management
Illinois
TAP
3638
Tounjian Advisory Partners
Florida
AAI
3639
American Assets Inc
California
AA
3640
ABC Arbitrage
France
FAM
3641
Fairtree Asset Management
South Africa
OAM
3642
Oxford Asset Management
United Kingdom
SM
3643
Stonegate Management
Illinois
WIM
3644
Waverton Investment Management
United Kingdom
AIM
3645
Aigen Investment Management
New York
IPW
3646
Impact Partnership Wealth
Georgia
MF
3647
Magnetar Financial
Illinois
SC
3648
Saiph Capital
New Jersey
CCM
3649
Crabel Capital Management
California
SRL
3650
Scientech Research LLC
New Jersey