3,273 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, 1,338 increasing their positions, 1,410 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: 3,3023,273 (-29)

5% less repeat investments, than reductions

Existing positions increased: 1,338 | Existing positions reduced: 1,410

2.19% less ownership

Funds ownership: 78.17%75.98% (-2.2%)

Holders
3,273
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
DP
3301
Diadema Partners
New Jersey
FC
3302
FORA Capital
Florida
OTPPB
3303
Ontario Teachers' Pension Plan Board
Ontario, Canada
BPAMU
3304
BTG Pactual Asset Management US
New York
FRM
3305
Fox Run Management
Connecticut
GIM
3306
Guardian Investment Management
California
DS
3307
DRW Securities
Illinois
LA
3308
Lindenwold Advisors
Pennsylvania
IC
3309
Iconiq Capital
California
BDWCC
3310
B&D White Capital Company
Texas
AFS
3311
Aft Forsyth & Sober
Florida
LCM
3312
Landscape Capital Management
New Jersey
GCM
3313
Glynn Capital Management
California
QIM
3314
Quantitative Investment Management
Virginia
Parallax Volatility Advisers
3315
Parallax Volatility Advisers
California
TC
3316
TradeLink Capital
Illinois
WI
3317
WBI Investments
New Jersey
I
3318
InceptionR
California
SC
3319
Sapient Capital
Indiana
CGF
3320
Constant Guidance Financial
Massachusetts
KIG
3321
Kessler Investment Group
Indiana
NICM
3322
Neo Ivy Capital Management
New York
TC
3323
TwinBeech Capital
New York
APWA
3324
Atlas Private Wealth Advisors
New Jersey
FAIM
3325
Financial Advocates Investment Management
Washington