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
AllianceBernstein
101
AllianceBernstein
Tennessee
$53.6M
CAPTRUST Financial Advisors
102
CAPTRUST Financial Advisors
North Carolina
$50.4M
IP
103
Interval Partners
New York
$50M
Treasurer of the State of North Carolina
104
Treasurer of the State of North Carolina
North Carolina
$49M
Jennison Associates
105
Jennison Associates
New York
$49M
CIM
106
CCLA Investment Management
United Kingdom
$48.6M
Renaissance Technologies
107
Renaissance Technologies
New York
$48.1M
CIBC Private Wealth Group
108
CIBC Private Wealth Group
Georgia
$46.9M
GAM
109
Guinness Asset Management
United Kingdom
$46.7M
TCM
110
TimesSquare Capital Management
New York
$46.6M
SPI
111
Santori & Peters Inc
Pennsylvania
$46.1M
Bank of Montreal
112
Bank of Montreal
Ontario, Canada
$45.8M
Envestnet Asset Management
113
Envestnet Asset Management
Illinois
$45.3M
AAP
114
Aristotle Atlantic Partners
Florida
$44.6M
Caisse de Depot et Placement du Quebec (CDPQ)
115
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$43.7M
SEI Investments
116
SEI Investments
Pennsylvania
$43.7M
Aberdeen Group
117
Aberdeen Group
United Kingdom
$43.3M
Mawer Investment Management
118
Mawer Investment Management
Alberta, Canada
$42.8M
Adage Capital Partners
119
Adage Capital Partners
Massachusetts
$41.8M
Assenagon Asset Management
120
Assenagon Asset Management
Luxembourg
$40.2M
Allianz Asset Management
121
Allianz Asset Management
Germany
$39.5M
FMI
122
Factory Mutual Insurance
Massachusetts
$37.9M
State Board of Administration of Florida Retirement System
123
State Board of Administration of Florida Retirement System
Florida
$37.5M
Manulife (Manufacturers Life Insurance)
124
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$37.3M
PNC Financial Services Group
125
PNC Financial Services Group
Pennsylvania
$36.5M