3,728 hedge funds and large institutions have $233B invested in Merck in 2026 Q1 according to their latest regulatory filings, with 309 funds opening new positions, 1,433 increasing their positions, 1,561 reducing their positions, and 123 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: $ → $

3% more funds holding

Funds holding: 3,6343,728 (+94)

8% less repeat investments, than reductions

Existing positions increased: 1,433 | Existing positions reduced: 1,561

1.51% less ownership

Funds ownership: 79.45%77.94% (-1.5%)

Holders
3,728
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
87
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.43B
Puts
$2.78B
Net Calls
Net Calls Change

Top Sellers

1 -$997M
2 -$809M
3 -$605M
4
Corient Private Wealth
Corient Private Wealth
Florida
-$602M
5
Millennium Management
Millennium Management
New York
-$558M
Name Holding Trade Value Shares
Change
Change in
Stake
AT
3526
Arlington Trust
Alabama
$116K
PWM
3527
Proathlete Wealth Management
Florida
$115K
UIA
3528
Ulland Investment Advisors
Minnesota
$115K
HWP
3529
Highline Wealth Partners
California
$115K
KAS
3530
Kemnay Advisory Services
New York
$114K
HIW
3531
Holos Integrated Wealth
Pennsylvania
$113K
PB
3532
Prosperity Bancshares
Texas
$112K
DPW
3533
DiNuzzo Private Wealth
Pennsylvania
$111K
CMA
3534
Cedar Mountain Advisors
Oregon
$110K
FIA
3535
FNY Investment Advisers
New York
$108K
HC
3536
Hara Capital
Washington
$107K
SVWA
3537
Sarver Vrooman Wealth Advisors
Missouri
$106K
1IA
3538
1620 Investment Advisors
Massachusetts
$101K
CFM
3539
Cornerstone Financial Management
Massachusetts
$98.9K
AF
3540
Aviso Financial
Ontario, Canada
$98.6K
SA
3541
Scarborough Advisors
Maryland
$97.7K
FG
3542
Fairman Group
Pennsylvania
$95.7K
PJC
3543
Phillip James Consulting
Minnesota
$95K
LFASL
3544
Lugano Financial Advisors SA (LFA)
Switzerland
$94.8K
GWSA
3545
Global Wealth Strategies & Associates
Colorado
$94.6K
AP
3546
Atwood & Palmer
Missouri
$92.9K
GAA
3547
Global Assets Advisory
Florida
$92.9K
AWM
3548
Activest Wealth Management
Florida
$92.7K
CTB
3549
Country Trust Bank
Illinois
$87.8K
VWA
3550
VSM Wealth Advisory
Maryland
$87.2K