1,030 hedge funds and large institutions have $37.4B invested in Ametek in 2025 Q3 according to their latest regulatory filings, with 119 funds opening new positions, 389 increasing their positions, 341 reducing their positions, and 74 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

2% more capital invested

Capital invested by funds: $36.8B → $37.4B (+$643M)

1.82% less ownership

Funds ownership: 88.1%86.28% (-1.8%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,030
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
14
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$48.8M
Puts
$15.2M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
1
$5.11B
2
$3.69B
3
$1.85B
4
$1.84B
5
$1.1B
6
$839M
7
$790M
8
$767M
9
$724M
10
$711M
11
$576M
12
$551M
13
$497M
14
$463M
15
$458M
16
$384M
17
$383M
18
$337M
19
$324M
20
$317M
21
$288M
22
$283M
23
$282M
24
$275M
25
$266M