3,248 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, 1,329 increasing their positions, 1,397 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: 1,329 | Existing positions reduced: 1,397

1% less funds holding

Funds holding: 3,2953,248 (-47)

2.21% less ownership

Funds ownership: 78.03%75.82% (-2.2%)

Holders
3,248
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
WAM
3251
Weiss Asset Management
Massachusetts
WorldQuant Millennium Advisors
3252
WorldQuant Millennium Advisors
New York
TI
3253
Trexquant Investment
Connecticut
TPSF
3254
Texas Permanent School Fund
Texas
Renaissance Technologies
3255
Renaissance Technologies
New York
MASUI
3256
MIRAE ASSET SECURITIES (USA) INC.
New York
YIH
3257
Y-Intercept (HK)
Hong Kong
LOAME
3258
Lombard Odier Asset Management (Europe)
United Kingdom
SGA
3259
Strategic Global Advisors
California
AFA
3260
Abacus FCF Advisors
Florida
QC
3261
Quantessence Capital
New York
BIMC
3262
Benson Investment Management Company
Virginia
ACM
3263
Aster Capital Management
United Arab Emirates
MHS
3264
M Holdings Securities
Oregon
MCM
3265
Moore Capital Management
New York
GC
3266
Globeflex Capital
California
NNPTE
3267
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne
Poland
QCM
3268
Qsemble Capital Management
New York
GIM
3269
Guild Investment Management
California
DGM
3270
Delta Global Management
New York
FIM
3271
Freedom Investment Management
Connecticut
LCM
3272
Laurion Capital Management
New York
VT
3273
Volterra Technologies
New York
M1FG
3274
Mach-1 Financial Group
Arkansas
DP
3275
Diadema Partners
New Jersey