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%76.05% (-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
BIMC
3301
Benson Investment Management Company
Virginia
ACM
3302
Aster Capital Management
United Arab Emirates
MHS
3303
M Holdings Securities
Oregon
MCM
3304
Moore Capital Management
New York
GC
3305
Globeflex Capital
California
NNPTE
3306
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne
Poland
QCM
3307
Qsemble Capital Management
New York
GIM
3308
Guild Investment Management
California
CAS
3309
CTC Alternative Strategies
Illinois
DGM
3310
Delta Global Management
New York
FIM
3311
Freedom Investment Management
Connecticut
LCM
3312
Laurion Capital Management
New York
VT
3313
Volterra Technologies
New York
M1FG
3314
Mach-1 Financial Group
Arkansas
DP
3315
Diadema Partners
New Jersey
FC
3316
FORA Capital
Florida
OTPPB
3317
Ontario Teachers' Pension Plan Board
Ontario, Canada
BPAMU
3318
BTG Pactual Asset Management US
New York
FRM
3319
Fox Run Management
Connecticut
GIM
3320
Guardian Investment Management
California
DS
3321
DRW Securities
Illinois
LA
3322
Lindenwold Advisors
Pennsylvania
IC
3323
Iconiq Capital
California
BDWCC
3324
B&D White Capital Company
Texas
AFS
3325
Aft Forsyth & Sober
Florida