3,294 hedge funds and large institutions have $160B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 189 funds opening new positions, 1,347 increasing their positions, 1,421 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: 3,3143,294 (-20)

5% less repeat investments, than reductions

Existing positions increased: 1,347 | Existing positions reduced: 1,421

2.2% less ownership

Funds ownership: 78.35%76.15% (-2.2%)

Holders
3,294
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 -$847M
2 -$568M
3 -$443M
4
BlackRock
BlackRock
New York
-$285M
5
Goldman Sachs
Goldman Sachs
New York
-$278M
Name Holding Trade Value Shares
Change
Change in
Stake
WPC
351
Waters Parkerson & Co
Louisiana
$28.6M
GAM
352
Generali Asset Management
Italy
$28.6M
AAM
353
Advisors Asset Management
Colorado
$28.6M
NYLIM
354
New York Life Investment Management
New York
$28.5M
SA
355
Sanctuary Advisors
Indiana
$28.3M
NAM
356
Nissay Asset Management
Japan
$27.8M
HIMC
357
Heritage Investors Management Corp
Maryland
$27.7M
WF
358
Welch & Forbes
Massachusetts
$27.4M
CA
359
CapWealth Advisors
Tennessee
$27.4M
GF
360
Gabelli Funds
New York
$27.3M
Public Employees Retirement Association of Colorado
361
Public Employees Retirement Association of Colorado
Colorado
$27.1M
SGA
362
Sector Gamma AS
Norway
$27.1M
VPIM
363
Vanguard Personalized Indexing Management
California
$26.9M
PWP
364
Private Wealth Partners
California
$26.7M
SI
365
Stephens Inc
Arkansas
$26.5M
HW
366
Hancock Whitney
Mississippi
$26.5M
WIC
367
Willis Investment Counsel
Georgia
$26.3M
SFA
368
Sequoia Financial Advisors
Ohio
$26.1M
HCMG
369
Howard Capital Management Group
California
$26.1M
SOADOR
370
State of Alaska Department of Revenue
Alaska
$26.1M
BCM
371
Bridgeway Capital Management
Texas
$25.9M
DWA
372
Douglass Winthrop Advisors
New York
$25.9M
ADEF
373
Adams Diversified Equity Fund
Maryland
$25.9M
CVA
374
Ceredex Value Advisors
Florida
$25.8M
WB
375
WesBanco Bank
West Virginia
$25.7M