3,288 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 189 funds opening new positions, 1,344 increasing their positions, 1,419 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: 3,3093,288 (-21)

5% less repeat investments, than reductions

Existing positions increased: 1,344 | Existing positions reduced: 1,419

2.22% less ownership

Funds ownership: 78.27%76.04% (-2.2%)

Holders
3,288
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
Northwestern Mutual Wealth Management
376
Northwestern Mutual Wealth Management
Wisconsin
$25.5M
IMCOOI
377
Investment Management Corp of Ontario (IMCO)
Canada
$25.4M
TSW
378
Thompson Siegel & Walmsley
Virginia
$25.4M
PAG
379
Private Advisor Group
New Jersey
$25.2M
AS
380
Aware Super
Australia
$25.1M
BCM
381
Becker Capital Management
Oregon
$25.1M
AIM
382
ARGA Investment Management
Connecticut
$25M
CCMIC
383
Cardinal Capital Management Inc (Canada)
Manitoba, Canada
$24.7M
EI
384
Ethic Inc
New York
$24.4M
MCM
385
MAI Capital Management
Ohio
$24.4M
QPBE
386
Quintet Private Bank (Europe)
Luxembourg
$24.4M
BFS
387
Bradley Foster & Sargent
Connecticut
$24.4M
WTC
388
WhitTier Trust Company
Nevada
$24.3M
HTC
389
Haverford Trust Company
Pennsylvania
$24.3M
EMPI
390
Elo Mutual Pension Insurance
Finland
$24.2M
OPERF
391
Oregon Public Employees Retirement Fund
Oregon
$24M
CFG
392
Citizens Financial Group
Rhode Island
$23.9M
BPA
393
Beacon Pointe Advisors
California
$23.9M
GKIM
394
GW&K Investment Management
Massachusetts
$23.8M
VI
395
Vestcor Inc
New Brunswick, Canada
$23.6M
FMI
396
Factory Mutual Insurance
Massachusetts
$23.6M
Rafferty Asset Management
397
Rafferty Asset Management
New York
$23.5M
VCM
398
Voleon Capital Management
California
$23.3M
OAC
399
OMERS Administration Corp
Ontario, Canada
$23.3M
KAS
400
Kestra Advisory Services
Texas
$23.3M