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
TWM
3351
TSA Wealth Management
Texas
$231K
MTIM
3352
Marathon Trading Investment Management
Pennsylvania
$231K
PWM
3353
Purus Wealth Management
California
$231K
ZWA
3354
Zinnia Wealth Advisory
Florida
$230K
GA
3355
GSG Advisors
New Jersey
$230K
CW
3356
Code Waechter
Florida
$228K
FA
3357
Fiducient Advisors
Illinois
$227K
TI
3358
tru Independence
Oregon
$227K
TAM
3359
Todd Asset Management
Kentucky
$226K
CCA
3360
Carrera Capital Advisors
Michigan
$226K
FF
3361
Francis Financial
$225K
IAG
3362
Investmark Advisory Group
Connecticut
$225K
TC
3363
Tannin Capital
North Carolina
$225K
SC
3364
Seldon Capital
California
$225K
CSW
3365
Cogent Strategic Wealth
Illinois
$224K
TFGT
3366
TS Financial Group (TSFG)
Illinois
$224K
DWM
3367
Denver Wealth Management
Colorado
$224K
HIM
3368
Hillsdale Investment Management
Ontario, Canada
$224K
LKBC
3369
L.K. Benson & Company
Maryland
$224K
MW
3370
Members Wealth
Pennsylvania
$223K
FWSM
3371
First Wilshire Securities Management
California
$223K
DAM
3372
Deltec Asset Management
New York
$223K
RHJA
3373
Rice Hall James & Associates
California
$223K
MFA
3374
McClarren Financial Advisors
Pennsylvania
$222K
CIS
3375
Continental Investors Services
Washington
$222K