3,272 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 190 funds opening new positions, 1,339 increasing their positions, 1,408 reducing their positions, and 150 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: $ → $

1% less funds holding

Funds holding: 3,3023,272 (-30)

5% less repeat investments, than reductions

Existing positions increased: 1,339 | Existing positions reduced: 1,408

2.19% less ownership

Funds ownership: 78.17%75.99% (-2.2%)

Holders
3,272
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
46
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.83B
Puts
$2.51B
Net Calls
Net Calls Change

Top Sellers

1 -$863M
2 -$579M
3 -$452M
4
BlackRock
BlackRock
New York
-$291M
5
Goldman Sachs
Goldman Sachs
New York
-$283M
Name Holding Trade Value Shares
Change
Change in
Stake
GAM
351
Generali Asset Management
Italy
$28.6M
AAM
352
Advisors Asset Management
Colorado
$28.6M
NYLIM
353
New York Life Investment Management
New York
$28.5M
NAM
354
Nissay Asset Management
Japan
$27.8M
HIMC
355
Heritage Investors Management Corp
Maryland
$27.7M
WF
356
Welch & Forbes
Massachusetts
$27.4M
CA
357
CapWealth Advisors
Tennessee
$27.4M
GF
358
Gabelli Funds
New York
$27.3M
Public Employees Retirement Association of Colorado
359
Public Employees Retirement Association of Colorado
Colorado
$27.1M
SGA
360
Sector Gamma AS
Norway
$27.1M
VPIM
361
Vanguard Personalized Indexing Management
California
$26.9M
PWP
362
Private Wealth Partners
California
$26.7M
SI
363
Stephens Inc
Arkansas
$26.5M
HW
364
Hancock Whitney
Mississippi
$26.5M
WIC
365
Willis Investment Counsel
Georgia
$26.3M
SFA
366
Sequoia Financial Advisors
Ohio
$26.1M
HCMG
367
Howard Capital Management Group
California
$26.1M
SOADOR
368
State of Alaska Department of Revenue
Alaska
$26.1M
BCM
369
Bridgeway Capital Management
Texas
$25.9M
DWA
370
Douglass Winthrop Advisors
New York
$25.9M
ADEF
371
Adams Diversified Equity Fund
Maryland
$25.9M
CVA
372
Ceredex Value Advisors
Florida
$25.8M
WB
373
WesBanco Bank
West Virginia
$25.7M
NEI
374
Northwest & Ethical Investments
Ontario, Canada
$25.6M
Northwestern Mutual Wealth Management
375
Northwestern Mutual Wealth Management
Wisconsin
$25.5M