1,009 hedge funds and large institutions have $37B invested in Ametek in 2025 Q3 according to their latest regulatory filings, with 118 funds opening new positions, 380 increasing their positions, 334 reducing their positions, and 75 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:

1% more capital invested

Capital invested by funds: $36.7B → $37B (+$292M)

2.62% less ownership

Funds ownership: 87.97%85.35% (-2.6%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,009
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
CAPTRUST Financial Advisors
101
CAPTRUST Financial Advisors
North Carolina
$50.4M
IP
102
Interval Partners
New York
$50M
Treasurer of the State of North Carolina
103
Treasurer of the State of North Carolina
North Carolina
$49M
Jennison Associates
104
Jennison Associates
New York
$49M
CIM
105
CCLA Investment Management
United Kingdom
$48.6M
Renaissance Technologies
106
Renaissance Technologies
New York
$48.1M
CIBC Private Wealth Group
107
CIBC Private Wealth Group
Georgia
$46.9M
GAM
108
Guinness Asset Management
United Kingdom
$46.7M
TCM
109
TimesSquare Capital Management
New York
$46.6M
SPI
110
Santori & Peters Inc
Pennsylvania
$46.1M
Bank of Montreal
111
Bank of Montreal
Ontario, Canada
$45.8M
Envestnet Asset Management
112
Envestnet Asset Management
Illinois
$45.3M
AAP
113
Aristotle Atlantic Partners
Florida
$44.6M
Caisse de Depot et Placement du Quebec (CDPQ)
114
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$43.7M
SEI Investments
115
SEI Investments
Pennsylvania
$43.7M
Aberdeen Group
116
Aberdeen Group
United Kingdom
$43.3M
Mawer Investment Management
117
Mawer Investment Management
Alberta, Canada
$42.8M
Adage Capital Partners
118
Adage Capital Partners
Massachusetts
$41.8M
Assenagon Asset Management
119
Assenagon Asset Management
Luxembourg
$40.2M
Allianz Asset Management
120
Allianz Asset Management
Germany
$39.5M
FMI
121
Factory Mutual Insurance
Massachusetts
$37.9M
State Board of Administration of Florida Retirement System
122
State Board of Administration of Florida Retirement System
Florida
$37.5M
Manulife (Manufacturers Life Insurance)
123
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$37.3M
PNC Financial Services Group
124
PNC Financial Services Group
Pennsylvania
$36.5M
Corient Private Wealth
125
Corient Private Wealth
Florida
$36.4M