993 hedge funds and large institutions have $36.7B invested in Ametek in 2025 Q2 according to their latest regulatory filings, with 97 funds opening new positions, 392 increasing their positions, 356 reducing their positions, and 77 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
993
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
15
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$29.3M
Puts
$14.5M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Arrowstreet Capital
76
Arrowstreet Capital
Massachusetts
$76.5M
Zurich Cantonal Bank
77
Zurich Cantonal Bank
Switzerland
$75.7M
Millennium Management
78
Millennium Management
New York
$73.1M
MDSL
79
M.D. Sass LLC
New York
$72.5M
DMIC
80
Dixon Mitchell Investment Counsel
British Columbia, Canada
$72.1M
Westfield Capital Management
81
Westfield Capital Management
Massachusetts
$71.6M
Capital International Investors
82
Capital International Investors
California
$71.4M
GIM
83
Glenmede Investment Management
Pennsylvania
$69.7M
Two Sigma Advisers
84
Two Sigma Advisers
New York
$68.7M
SSA
85
Schonfeld Strategic Advisors
New York
$67.6M
Wells Fargo
86
Wells Fargo
California
$66.4M
Raymond James Financial
87
Raymond James Financial
Florida
$66M
FAM
88
Fenimore Asset Management
New York
$65.6M
MPIA
89
Mountain Pacific Investment Advisers
Idaho
$64.4M
California State Teachers Retirement System (CalSTRS)
90
California State Teachers Retirement System (CalSTRS)
California
$63.1M
Canada Life
91
Canada Life
Manitoba, Canada
$61.6M
Marshall Wace
92
Marshall Wace
United Kingdom
$59M
RMDI
93
R.M. Davis Inc
Maine
$58.1M
Canada Pension Plan Investment Board
94
Canada Pension Plan Investment Board
Ontario, Canada
$57.5M
Janus Henderson Group
95
Janus Henderson Group
United Kingdom
$56.1M
National Pension Service
96
National Pension Service
South Korea
$55.4M
KBC Group
97
KBC Group
Belgium
$52.4M
CRC
98
Curi RMB Capital
Illinois
$51.8M
Jennison Associates
99
Jennison Associates
New York
$51.6M
AllianceBernstein
100
AllianceBernstein
Tennessee
$51.1M