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3,648 hedge funds and large institutions have $207B invested in Merck in 2025 Q4 according to their latest regulatory filings, with 544 funds opening new positions, 1,372 increasing their positions, 1,398 reducing their positions, and 131 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more capital invested

Capital invested by funds: $ → $

10% more funds holding

Funds holding: 3,3073,648 (+341)

2.9% more ownership

Funds ownership: 76.23%79.13% (+2.9%)

2% less repeat investments, than reductions

Existing positions increased: 1,372 | Existing positions reduced: 1,398

Holders
3,648
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
77
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.76B
Puts
$2.62B
Net Calls
Net Calls Change

Top Buyers

1 +$1.05B
2 +$696M
3 +$567M
4
Citadel Advisors
Citadel Advisors
Florida
+$549M
5
Jennison Associates
Jennison Associates
New York
+$522M
Name Holding Trade Value Shares
Change
Change in
Stake
PIP
3326
Peachtree Investment Partners
Florida
$209K
MWM
3327
Marion Wealth Management
Pennsylvania
$209K
BA
3328
Bluesphere Advisors
Pennsylvania
$209K
SIA
3329
Serenity Investment Advisors
Illinois
$209K
B
3330
Bayban
Minnesota
$208K
S
3331
Sachetta
Massachusetts
$208K
WC
3332
Westhampton Capital
North Carolina
$208K
MAG
3333
M3 Advisory Group
Massachusetts
$208K
HHAA
3334
Henry H. Armstrong Associates
Pennsylvania
$208K
MW
3335
Maia Wealth
Colorado
$207K
PBF
3336
Petix & Botte Financial
California
$207K
HEM
3337
Henson-Edgewater Management
Ohio
$207K
HBS
3338
Howard Bailey Securities
Indiana
$206K
LC
3339
Landaas & Company
Wisconsin
$206K
PPG
3340
Peak Planning Group
Colorado
$206K
AFA
3341
American Financial Advisors
Georgia
$206K
CCM
3342
Coerente Capital Management
Ontario, Canada
$206K
NSG
3343
Nalls Sherbakoff Group
Tennessee
$206K
MSWM
3344
Master's Wealth Management
Pennsylvania
$206K
RFG
3345
REAP Financial Group
Texas
$205K
AWS
3346
Alliance Wealth Strategies
Virginia
$205K
TIM
3347
Total Investment Management
Arizona
$205K
CCA
3348
Carrera Capital Advisors
Michigan
$204K
RIM
3349
Rockbridge Investment Management
New York
$204K
RCM
3350
Requisite Capital Management
Texas
$204K