1,108 hedge funds and large institutions have $41.8B invested in Ametek in 2025 Q4 according to their latest regulatory filings, with 175 funds opening new positions, 396 increasing their positions, 369 reducing their positions, and 69 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

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

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

8% more funds holding

Funds holding: 1,0271,108 (+81)

2.26% more ownership

Funds ownership: 86.27%88.53% (+2.3%)

7% more repeat investments, than reductions

Existing positions increased: 396 | Existing positions reduced: 369

Holders
1,108
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
24
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$87.1M
Puts
$49M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
National Bank of Canada
151
National Bank of Canada
Quebec, Canada
$31.9M
Renaissance Technologies
152
Renaissance Technologies
New York
$31.8M
Jones Financial Companies
153
Jones Financial Companies
Missouri
$31.3M
Daiwa Securities Group
154
Daiwa Securities Group
Japan
$30.9M
Toronto Dominion Bank
155
Toronto Dominion Bank
Ontario, Canada
$30.7M
CI Investments Inc
156
CI Investments Inc
Ontario, Canada
$30.7M
Marshall Wace
157
Marshall Wace
United Kingdom
$29.9M
SO
158
STRS Ohio
Ohio
$29.8M
ELI
159
Empire Life Investments
Ontario, Canada
$29.8M
OCM
160
Osterweis Capital Management
California
$29.4M
Wealth Enhancement Advisory Services
161
Wealth Enhancement Advisory Services
Minnesota
$29.2M
RMA
162
Roffman Miller Associates
Pennsylvania
$28.9M
DS
163
Dudley & Shanley
Florida
$28.7M
VNIM
164
Vaughan Nelson Investment Management
Texas
$28.2M
Prudential Financial
165
Prudential Financial
New Jersey
$27.4M
Jennison Associates
166
Jennison Associates
New York
$27.3M
MIF
167
Mediolanum International Funds
Ireland
$27.3M
Luther King Capital Management (LKCM)
168
Luther King Capital Management (LKCM)
Texas
$27M
CAM
169
Cresset Asset Management
Illinois
$26.7M
CC
170
Cornerstone Capital
California
$26.6M
APG Asset Management
171
APG Asset Management
Netherlands
$26.6M
New York State Common Retirement Fund
172
New York State Common Retirement Fund
New York
$26.5M
PCM
173
Palisade Capital Management
New Jersey
$26.5M
Citigroup
174
Citigroup
New York
$26.5M
QCM
175
Quantinno Capital Management
New York
$26M