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
Corient Private Wealth
126
Corient Private Wealth
Florida
$36.4M
Teacher Retirement System of Texas
127
Teacher Retirement System of Texas
Texas
$36.4M
MPIA
128
Mountain Pacific Investment Advisers
Idaho
$36M
NAM
129
Nissay Asset Management
Japan
$35.5M
MVIP
130
Mar Vista Investment Partners
California
$33.8M
NSAM
131
North Star Asset Management
Wisconsin
$33.5M
Aviva
132
Aviva
United Kingdom
$32.8M
DP
133
Dundas Partners
United Kingdom
$32.4M
Russell Investments Group
134
Russell Investments Group
United Kingdom
$32M
Balyasny Asset Management
135
Balyasny Asset Management
Illinois
$31.5M
AV
136
ASR Vermogensbeheer
Netherlands
$30.4M
Citigroup
137
Citigroup
New York
$30.3M
New York State Teachers Retirement System (NYSTRS)
138
New York State Teachers Retirement System (NYSTRS)
New York
$30.1M
Korea Investment Corp
139
Korea Investment Corp
South Korea
$29.9M
HCMG
140
Howard Capital Management Group
California
$29.4M
Allspring Global Investments
141
Allspring Global Investments
North Carolina
$29.1M
CI Investments Inc
142
CI Investments Inc
Ontario, Canada
$28.9M
Toronto Dominion Bank
143
Toronto Dominion Bank
Ontario, Canada
$28.8M
Victory Capital Management
144
Victory Capital Management
Texas
$28.4M
Mariner
145
Mariner
Kansas
$28.4M
Jones Financial Companies
146
Jones Financial Companies
Missouri
$28.4M
Macquarie Group
147
Macquarie Group
Australia
$28.3M
OCM
148
Osterweis Capital Management
California
$27.9M
National Bank of Canada
149
National Bank of Canada
Quebec, Canada
$27.7M
ELI
150
Empire Life Investments
Ontario, Canada
$27.5M