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
FC
3301
FORA Capital
Florida
OTPPB
3302
Ontario Teachers' Pension Plan Board
Ontario, Canada
BPAMU
3303
BTG Pactual Asset Management US
New York
FRM
3304
Fox Run Management
Connecticut
GIM
3305
Guardian Investment Management
California
DS
3306
DRW Securities
Illinois
LA
3307
Lindenwold Advisors
Pennsylvania
IC
3308
Iconiq Capital
California
BDWCC
3309
B&D White Capital Company
Texas
AFS
3310
Aft Forsyth & Sober
Florida
LCM
3311
Landscape Capital Management
New Jersey
GCM
3312
Glynn Capital Management
California
QIM
3313
Quantitative Investment Management
Virginia
Parallax Volatility Advisers
3314
Parallax Volatility Advisers
California
TC
3315
TradeLink Capital
Illinois
WI
3316
WBI Investments
New Jersey
I
3317
InceptionR
California
SC
3318
Sapient Capital
Indiana
CGF
3319
Constant Guidance Financial
Massachusetts
KIG
3320
Kessler Investment Group
Indiana
NICM
3321
Neo Ivy Capital Management
New York
TC
3322
TwinBeech Capital
New York
APWA
3323
Atlas Private Wealth Advisors
New Jersey
FAIM
3324
Financial Advocates Investment Management
Washington
F8IS
3325
Figure 8 Investment Strategies
Idaho