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
WorldQuant Millennium Advisors
126
WorldQuant Millennium Advisors
New York
$43.8M
Teacher Retirement System of Texas
127
Teacher Retirement System of Texas
Texas
$43.1M
NAM
128
Nissay Asset Management
Japan
$42.8M
Manulife (Manufacturers Life Insurance)
129
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$41.8M
Mawer Investment Management
130
Mawer Investment Management
Alberta, Canada
$41.3M
State Board of Administration of Florida Retirement System
131
State Board of Administration of Florida Retirement System
Florida
$40.5M
PNC Financial Services Group
132
PNC Financial Services Group
Pennsylvania
$39.6M
DZ Bank
133
DZ Bank
Germany
$38.9M
SG Americas Securities
134
SG Americas Securities
New York
$38.5M
MPIA
135
Mountain Pacific Investment Advisers
Idaho
$38.5M
Envestnet Asset Management
136
Envestnet Asset Management
Illinois
$37.9M
Aviva
137
Aviva
United Kingdom
$37.9M
Robeco Institutional Asset Management
138
Robeco Institutional Asset Management
Netherlands
$37.7M
Adage Capital Partners
139
Adage Capital Partners
Massachusetts
$37.5M
Artisan Partners
140
Artisan Partners
Wisconsin
$36.8M
NSAM
141
North Star Asset Management
Wisconsin
$36.5M
TD Asset Management
142
TD Asset Management
Ontario, Canada
$36.4M
MVIP
143
Mar Vista Investment Partners
California
$36M
SSA
144
Schonfeld Strategic Advisors
New York
$35.6M
Korea Investment Corp
145
Korea Investment Corp
South Korea
$35.6M
DP
146
Dundas Partners
United Kingdom
$34.9M
HCMG
147
Howard Capital Management Group
California
$33.1M
New York State Teachers Retirement System (NYSTRS)
148
New York State Teachers Retirement System (NYSTRS)
New York
$32.9M
Allspring Global Investments
149
Allspring Global Investments
North Carolina
$32.6M
AV
150
ASR Vermogensbeheer
Netherlands
$32.1M