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
First Manhattan
551
First Manhattan
New York
$12.1M
MC
552
Middleton & Co
Massachusetts
$12M
MGP
553
Metis Global Partners
California
$12M
LOAMS
554
Lombard Odier Asset Management (Switzerland)
Switzerland
$11.9M
CA
555
Cornerstone Advisors
North Carolina
$11.9M
BRCM
556
Bright Rock Capital Management
Massachusetts
$11.9M
LMIM
557
Lockheed Martin Investment Management
Maryland
$11.9M
MFG
558
Merit Financial Group
Georgia
$11.8M
QI
559
QV Investors
Alberta, Canada
$11.8M
EGA
560
Eagle Global Advisors
Texas
$11.8M
FVWA
561
Foster Victor Wealth Advisors
South Carolina
$11.6M
PAM
562
Panagora Asset Management
Massachusetts
$11.6M
ACIM
563
Azimuth Capital Investment Management
Michigan
$11.5M
CIG
564
Cullen Investment Group
Louisiana
$11.5M
WAS
565
Wesleyan Assurance Society
United Kingdom
$11.4M
NCM
566
Narwhal Capital Management
Georgia
$11.4M
DPL
567
Danica Pension Livsforsikrings
$11.4M
MIM
568
Morningstar Investment Management
Illinois
$11.4M
BCWM
569
Bartlett & Co Wealth Management
Ohio
$11.3M
TS
570
Triglav Skladi
Slovenia
$11.3M
Ninety One (UK)
571
Ninety One (UK)
United Kingdom
$11.2M
RB
572
Rodgers Brothers
Pennsylvania
$11.2M
SGI
573
Summit Global Investments
Utah
$11.1M
DMC
574
Drexel Morgan & Co
Pennsylvania
$11.1M
WA
575
Waverly Advisors
Alabama
$11.1M