1,146 hedge funds and large institutions have $43B invested in Ametek in 2026 Q1 according to their latest regulatory filings, with 137 funds opening new positions, 461 increasing their positions, 367 reducing their positions, and 92 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,146
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
22
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$99M
Puts
$46.3M
Net Calls
Net Calls Change

Top Buyers

1 +$247M
2 +$168M
3 +$143M
4
Two Sigma Investments
Two Sigma Investments
New York
+$138M
5
JP Morgan Chase
JP Morgan Chase
New York
+$122M

Top Sellers

1 -$256M
2 -$232M
3 -$215M
4
BlackRock
BlackRock
New York
-$183M
5
ATO
Alecta Tjanstepension Omsesidigt
Sweden
-$165M
Name Holding Trade Value Shares
Change
Change in
Stake
Voloridge Investment Management
76
Voloridge Investment Management
Florida
$109M
VGA
77
Vanguard Global Advisers
Pennsylvania
$108M
Sumitomo Mitsui Trust Group
78
Sumitomo Mitsui Trust Group
Japan
$107M
Thrivent Financial for Lutherans
79
Thrivent Financial for Lutherans
Minnesota
$106M
TG
80
TCW Group
California
$104M
BNP Paribas Financial Markets
81
BNP Paribas Financial Markets
France
$104M
Envestnet Asset Management
82
Envestnet Asset Management
Illinois
$101M
William Blair & Company
83
William Blair & Company
Illinois
$98.1M
RhumbLine Advisers
84
RhumbLine Advisers
Massachusetts
$97M
PC
85
Port Capital
Illinois
$92.7M
Capital International Investors
86
Capital International Investors
California
$91.9M
CIP
87
Champlain Investment Partners
Vermont
$91.2M
Ensign Peak Advisors
88
Ensign Peak Advisors
Utah
$90.3M
SEI Investments
89
SEI Investments
Pennsylvania
$89.9M
BNP Paribas Asset Management
90
BNP Paribas Asset Management
France
$89M
Wells Fargo
91
Wells Fargo
California
$87.2M
Prudential Financial
92
Prudential Financial
New Jersey
$87M
California Public Employees Retirement System
93
California Public Employees Retirement System
California
$86M
DMIC
94
Dixon Mitchell Investment Counsel
British Columbia, Canada
$85.7M
Raymond James Financial
95
Raymond James Financial
Florida
$83.6M
California State Teachers Retirement System (CalSTRS)
96
California State Teachers Retirement System (CalSTRS)
California
$83.1M
HL
97
Harding Loevner
New Jersey
$81.2M
Canada Pension Plan Investment Board
98
Canada Pension Plan Investment Board
Ontario, Canada
$80.7M
Point72 Asset Management
99
Point72 Asset Management
Connecticut
$80.1M
VAM
100
Vanguard Asset Management
$79.8M