3,414 hedge funds and large institutions have $177B invested in Merck in 2025 Q1 according to their latest regulatory filings, with 182 funds opening new positions, 1,331 increasing their positions, 1,586 reducing their positions, and 277 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

11% less funds holding in top 10

Funds holding in top 10: 7264 (-8)

16% less repeat investments, than reductions

Existing positions increased: 1,331 | Existing positions reduced: 1,586

34% less first-time investments, than exits

New positions opened: 182 | Existing positions closed: 277

Holders
3,414
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
64
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.57B
Puts
$2.32B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
76
$316M
77
$310M
78
$308M
79
$301M
80
$299M
81
$295M
82
$292M
83
$291M
84
$283M
85
$280M
86
$278M
87
$274M
88
$262M
89
$257M
90
$255M
91
$247M
92
$246M
93
$242M
94
$240M
95
$239M
96
$235M
97
$234M
98
$233M
99
$229M
100
$225M