1,018 hedge funds and large institutions have $37.3B invested in Ametek in 2025 Q3 according to their latest regulatory filings, with 119 funds opening new positions, 385 increasing their positions, 337 reducing their positions, and 76 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: $36.7B → $37.3B (+$588M)

1.95% less ownership

Funds ownership: 88.09%86.14% (-1.9%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,018
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
CB
1051
Cooke & Bieler
Pennsylvania
IMRF
1052
Illinois Municipal Retirement Fund
Illinois
TCM
1053
Tributary Capital Management
Nebraska
EC
1054
EntryPoint Capital
New York
CIM
1055
Contravisory Investment Management
Massachusetts
GCP
1056
GSA Capital Partners
United Kingdom
HM
1057
Harvest Management
New York
WAG
1058
Wallace Advisory Group
California
TB
1059
Terril Brothers
Missouri
PTC
1060
Petrus Trust Company
Texas
Walleye Trading
1061
Walleye Trading
New York
MPM
1062
MBB Public Markets
Illinois
GSC
1063
Ground Swell Capital
South Carolina
AIM
1064
Acropolis Investment Management
Missouri
QL
1065
Quarry LP
New York
QIM
1066
Quantitative Investment Management
Virginia
AWA
1067
Aaron Wealth Advisors
Illinois
PCP
1068
Proficio Capital Partners
Massachusetts
VA
1069
VestGen Advisors
Illinois
GM
1070
GeoWealth Management
Illinois
TIM
1071
Total Investment Management
Arizona
GWM
1072
Geneos Wealth Management
Colorado
OIAM
1073
OFI Invest Asset Management
France
IIM
1074
Intact Investment Management
Quebec, Canada
OWA
1075
Opal Wealth Advisors
New York