We are live on ! Find out more

3,648 hedge funds and large institutions have $207B invested in Merck in 2025 Q4 according to their latest regulatory filings, with 544 funds opening new positions, 1,372 increasing their positions, 1,398 reducing their positions, and 131 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: 3,3073,648 (+341)

2.9% more ownership

Funds ownership: 76.23%79.13% (+2.9%)

2% less repeat investments, than reductions

Existing positions increased: 1,372 | Existing positions reduced: 1,398

Holders
3,648
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
$3.76B
Puts
$2.62B
Net Calls
Net Calls Change

Top Buyers

1 +$1.05B
2 +$696M
3 +$567M
4
Citadel Advisors
Citadel Advisors
Florida
+$549M
5
Jennison Associates
Jennison Associates
New York
+$522M
Name Holding Trade Value Shares
Change
Change in
Stake
Simplex Trading
3676
Simplex Trading
Illinois
KSCM
3677
Kamunting Street Capital Management
Florida
MIC
3678
Mubadala Investment Company
United Arab Emirates
GMA
3679
Glassy Mountain Advisors
Maryland
AC
3680
Arrow Capital
Australia
XT
3681
XTX Topco
Cayman Islands
SC
3682
SummitTX Capital
Texas
CP
3683
CenterBook Partners
Connecticut
DFCM
3684
Dark Forest Capital Management
Puerto Rico
WAM
3685
Wolverine Asset Management
Illinois
HI
3686
Humankind Investments
New York
GCP
3687
GSA Capital Partners
United Kingdom
BWM
3688
Bulltick Wealth Management
Florida
HKIM
3689
Hayek Kallen Investment Management
Alabama
SIP
3690
Stoneridge Investment Partners
Pennsylvania
CCM
3691
Campbell Capital Management
Florida
1C
3692
111 Capital
France
ZP
3693
Zimmer Partners
New York
IMC Chicago
3694
IMC Chicago
Illinois
OQS
3695
Occudo Quantitative Strategies
Florida
GA
3696
GraniteShares Advisors
New York
LAM
3697
LECAP Asset Management
United Kingdom
MTIM
3698
Marathon Trading Investment Management
Pennsylvania
Blackstone Inc
3699
Blackstone Inc
New York
QC
3700
Quadrature Capital
United Kingdom