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1,033 hedge funds and large institutions have $37.4B invested in Ametek in 2025 Q3 according to their latest regulatory filings, with 120 funds opening new positions, 390 increasing their positions, 341 reducing their positions, and 74 closing their positions.

New
Increased
Maintained
Reduced
Closed

221% more call options, than puts

Call options by funds: $48.8M | Put options by funds: $15.2M

62% more first-time investments, than exits

New positions opened: 120 | Existing positions closed: 74

14% more repeat investments, than reductions

Existing positions increased: 390 | Existing positions reduced: 341

3% more funds holding

Funds holding: 1,0031,033 (+30)

2% more capital invested

Capital invested by funds: $36.8B → $37.4B (+$646M)

1.81% less ownership

Funds ownership: 88.14%86.33% (-1.8%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,033
Holders Change
+30
Holders Change %
+2.99%
% of All Funds
13.56%
Holding in Top 10
14
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-6.67%
% of All Funds
0.18%
New
120
Increased
390
Reduced
341
Closed
74
Calls
$48.8M
Puts
$15.2M
Net Calls
+$33.6M
Net Calls Change
+$18.8M
Name Holding Trade Value Shares
Change
Change in
Stake
Legal & General Group
26
Legal & General Group
United Kingdom
$264M +$8.58M +46,625 +3%
Deutsche Bank
27
Deutsche Bank
Germany
$262M +$20.7M +112,742 +9%
Charles Schwab
28
Charles Schwab
California
$258M +$1.69M +9,184 +0.7%
Boston Partners
29
Boston Partners
Massachusetts
$252M -$32.5M -176,422 -12%
HSBC Holdings
30
HSBC Holdings
United Kingdom
$247M +$114M +617,795 +89%
Citadel Advisors
31
Citadel Advisors
Florida
$234M +$118M +640,756 +106%
UBS Group
32
UBS Group
Switzerland
$231M +$32.7M +177,541 +17%
Qube Research & Technologies (QRT)
33
Qube Research & Technologies (QRT)
United Kingdom
$230M -$634K -3,447 -0.3%
GC
34
Giverny Capital
Quebec, Canada
$187M +$61.1K +332 +0%
GF
35
Gabelli Funds
New York
$179M -$2.85M -15,500 -2%
MIM
36
Meridiem Investment Management
United Kingdom
$173M +$20.2M +109,825 +14%
AQR Capital Management
37
AQR Capital Management
Connecticut
$170M +$45.6M +247,922 +38%
Ameriprise
38
Ameriprise
Minnesota
$169M -$47.5M -258,086 -22%
BNP Paribas Financial Markets
39
BNP Paribas Financial Markets
France
$167M +$62.3M +338,371 +62%
CIP
40
Champlain Investment Partners
Vermont
$166M -$48.2M -262,195 -23%
D.E. Shaw & Co
41
D.E. Shaw & Co
New York
$164M +$53.7M +291,980 +50%
Massachusetts Financial Services
42
Massachusetts Financial Services
Massachusetts
$163M -$161M -873,674 -50%
MC
43
Maren Capital
Illinois
$162M +$10.9M +59,510 +7%
Millennium Management
44
Millennium Management
New York
$159M +$81.2M +441,365 +109%
DekaBank Deutsche Girozentrale
45
DekaBank Deutsche Girozentrale
Germany
$158M
Bank Julius Baer & Co
46
Bank Julius Baer & Co
Switzerland
$156M -$99.9M -542,660 -40%
Neuberger Berman Group
47
Neuberger Berman Group
New York
$154M -$1.17M -6,333 -0.8%
Primecap Management
48
Primecap Management
California
$154M +$7.43M +40,400 +5%
Barclays
49
Barclays
United Kingdom
$152M +$26.4M +143,714 +22%
SCM
50
Snyder Capital Management
California
$148M +$29.7M +161,615 +26%