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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
1
$22.7B
2
$20.2B
3
$10.9B
4
$7.33B
5
$5.34B
6
$4.42B
7
$3.87B
8
$3.43B
9
$2.86B
10
$2.79B
11
$2.77B
12
$2.73B
13
$2.56B
14
$2.19B
15
$2.08B
16
$1.97B
17
$1.89B
18
$1.86B
19
$1.77B
20
$1.72B
21
$1.4B
22
$1.37B
23
$1.29B
24
$1.29B
25
$1.27B