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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
NGA
651
Naples Global Advisors
Florida
$11.5M
Impax Asset Management Group
652
Impax Asset Management Group
United Kingdom
$11.4M
PFM
653
Premier Fund Managers
United Kingdom
$11.4M
A
654
Allianz
Germany
$11.4M
ERP
655
Eldred Rock Partners
Texas
$11.3M
FPAS
656
Focus Partners Advisor Solutions
Missouri
$11.3M
CSI
657
Clark & Stuart Inc
Maine
$11.3M
CI
658
CX Institutional
Indiana
$11.2M
TCOV
659
Trust Company of Vermont
Vermont
$11.2M
MC
660
Miramar Capital
Illinois
$11.2M
PUI
661
Purpose Unlimited Inc
$11M
FNT
662
First Nebraska Trust
Nebraska
$11M
CAG
663
Crestwood Advisors Group
Massachusetts
$10.9M
JIC
664
Johnson Investment Counsel
Ohio
$10.9M
MMA
665
Miracle Mile Advisors
California
$10.9M
HPCM
666
Hunter Perkins Capital Management
Illinois
$10.9M
RWP
667
RWA Wealth Partners
Massachusetts
$10.8M
OBAM
668
ODDO BHF Asset Management
France
$10.8M
BCM
669
Brookstone Capital Management
Illinois
$10.7M
PP
670
Patten & Patten
Tennessee
$10.7M
ABC
671
Associated Banc-Corp
Wisconsin
$10.7M
JGUA
672
John G. Ullman & Associates
New York
$10.7M
TF
673
Tompkins Financial
New York
$10.6M
MASUI
674
MIRAE ASSET SECURITIES (USA) INC.
New York
$10.6M
TCM
675
Tufton Capital Management
Maryland
$10.6M