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3,445 hedge funds and large institutions have $181B invested in Merck in 2025 Q1 according to their latest regulatory filings, with 181 funds opening new positions, 1,345 increasing their positions, 1,597 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: $

more 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: 7365 (-8)

16% less repeat investments, than reductions

Existing positions increased: 1,345 | Existing positions reduced: 1,597

35% less first-time investments, than exits

New positions opened: 181 | Existing positions closed: 277

Holders
3,445
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
65
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
51
$532M
52
$526M
53
$505M
54
$491M
55
$484M
56
$481M
57
$475M
58
$473M
59
$453M
60
$450M
61
$432M
62
$420M
63
$403M
64
$403M
65
$401M
66
$397M
67
$387M
68
$363M
69
$361M
70
$348M
71
$343M
72
$342M
73
$336M
74
$334M
75
$332M