1,027 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, 387 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: $36.7B → $37.4B (+$642M)

1.82% less ownership

Funds ownership: 88.08%86.26% (-1.8%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,027
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
PNC Financial Services Group
126
PNC Financial Services Group
Pennsylvania
$36.5M
Corient Private Wealth
127
Corient Private Wealth
Florida
$36.4M
Teacher Retirement System of Texas
128
Teacher Retirement System of Texas
Texas
$36.4M
MPIA
129
Mountain Pacific Investment Advisers
Idaho
$36M
NAM
130
Nissay Asset Management
Japan
$35.5M
MVIP
131
Mar Vista Investment Partners
California
$33.8M
NSAM
132
North Star Asset Management
Wisconsin
$33.5M
Aviva
133
Aviva
United Kingdom
$32.8M
DP
134
Dundas Partners
United Kingdom
$32.4M
Russell Investments Group
135
Russell Investments Group
United Kingdom
$32M
Balyasny Asset Management
136
Balyasny Asset Management
Illinois
$31.5M
AV
137
ASR Vermogensbeheer
Netherlands
$30.4M
Citigroup
138
Citigroup
New York
$30.3M
New York State Teachers Retirement System (NYSTRS)
139
New York State Teachers Retirement System (NYSTRS)
New York
$30.1M
Korea Investment Corp
140
Korea Investment Corp
South Korea
$29.9M
HCMG
141
Howard Capital Management Group
California
$29.4M
Allspring Global Investments
142
Allspring Global Investments
North Carolina
$29.1M
CI Investments Inc
143
CI Investments Inc
Ontario, Canada
$28.9M
Toronto Dominion Bank
144
Toronto Dominion Bank
Ontario, Canada
$28.8M
Victory Capital Management
145
Victory Capital Management
Texas
$28.4M
Mariner
146
Mariner
Kansas
$28.4M
Jones Financial Companies
147
Jones Financial Companies
Missouri
$28.4M
Macquarie Group
148
Macquarie Group
Australia
$28.3M
OCM
149
Osterweis Capital Management
California
$27.9M
National Bank of Canada
150
National Bank of Canada
Quebec, Canada
$27.7M