3,244 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 191 funds opening new positions, 1,326 increasing their positions, 1,396 reducing their positions, and 147 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: $ → $

5% less repeat investments, than reductions

Existing positions increased: 1,326 | Existing positions reduced: 1,396

1% less funds holding

Funds holding: 3,2933,244 (-49)

2.24% less ownership

Funds ownership: 78.03%75.78% (-2.2%)

Holders
3,244
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
WF
351
Welch & Forbes
Massachusetts
$27.4M
CA
352
CapWealth Advisors
Tennessee
$27.4M
GF
353
Gabelli Funds
New York
$27.3M
Public Employees Retirement Association of Colorado
354
Public Employees Retirement Association of Colorado
Colorado
$27.1M
SGA
355
Sector Gamma AS
Norway
$27.1M
VPIM
356
Vanguard Personalized Indexing Management
California
$26.9M
PWP
357
Private Wealth Partners
California
$26.7M
SI
358
Stephens Inc
Arkansas
$26.5M
HW
359
Hancock Whitney
Mississippi
$26.5M
WIC
360
Willis Investment Counsel
Georgia
$26.3M
SFA
361
Sequoia Financial Advisors
Ohio
$26.1M
HCMG
362
Howard Capital Management Group
California
$26.1M
SOADOR
363
State of Alaska Department of Revenue
Alaska
$26.1M
BCM
364
Bridgeway Capital Management
Texas
$25.9M
DWA
365
Douglass Winthrop Advisors
New York
$25.9M
ADEF
366
Adams Diversified Equity Fund
Maryland
$25.9M
CVA
367
Ceredex Value Advisors
Florida
$25.8M
WB
368
WesBanco Bank
West Virginia
$25.7M
NEI
369
Northwest & Ethical Investments
Ontario, Canada
$25.6M
Northwestern Mutual Wealth Management
370
Northwestern Mutual Wealth Management
Wisconsin
$25.5M
IMCOOI
371
Investment Management Corp of Ontario (IMCO)
Canada
$25.4M
TSW
372
Thompson Siegel & Walmsley
Virginia
$25.4M
PAG
373
Private Advisor Group
New Jersey
$25.2M
AS
374
Aware Super
Australia
$25.1M
BCM
375
Becker Capital Management
Oregon
$25.1M