3,244 hedge funds and large institutions have $159B invested in Merck in 2025 Q3 according to their latest regulatory filings, with 191 funds opening new positions, 1,326 increasing their positions, 1,396 reducing their positions, and 147 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: $ → $

5% less repeat investments, than reductions

Existing positions increased: 1,326 | Existing positions reduced: 1,396

1% less funds holding

Funds holding: 3,2933,244 (-49)

2.24% less ownership

Funds ownership: 78.03%75.78% (-2.2%)

Holders
3,244
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
Renaissance Technologies
3251
Renaissance Technologies
New York
MASUI
3252
MIRAE ASSET SECURITIES (USA) INC.
New York
YIH
3253
Y-Intercept (HK)
Hong Kong
LOAME
3254
Lombard Odier Asset Management (Europe)
United Kingdom
SGA
3255
Strategic Global Advisors
California
AFA
3256
Abacus FCF Advisors
Florida
QC
3257
Quantessence Capital
New York
BIMC
3258
Benson Investment Management Company
Virginia
ACM
3259
Aster Capital Management
United Arab Emirates
MHS
3260
M Holdings Securities
Oregon
MCM
3261
Moore Capital Management
New York
GC
3262
Globeflex Capital
California
NNPTE
3263
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne
Poland
QCM
3264
Qsemble Capital Management
New York
GIM
3265
Guild Investment Management
California
DGM
3266
Delta Global Management
New York
FIM
3267
Freedom Investment Management
Connecticut
LCM
3268
Laurion Capital Management
New York
VT
3269
Volterra Technologies
New York
M1FG
3270
Mach-1 Financial Group
Arkansas
DP
3271
Diadema Partners
New Jersey
FC
3272
FORA Capital
Florida
OTPPB
3273
Ontario Teachers' Pension Plan Board
Ontario, Canada
BPAMU
3274
BTG Pactual Asset Management US
New York
FRM
3275
Fox Run Management
Connecticut