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
RhumbLine Advisers
76
RhumbLine Advisers
Massachusetts
$85.1M
PC
77
Port Capital
Illinois
$85.1M
Canada Pension Plan Investment Board
78
Canada Pension Plan Investment Board
Ontario, Canada
$84.1M
California Public Employees Retirement System
79
California Public Employees Retirement System
California
$81.7M
HL
80
Harding Loevner
New Jersey
$80.8M
Point72 Asset Management
81
Point72 Asset Management
Connecticut
$78M
Capital International Investors
82
Capital International Investors
California
$76.9M
DMIC
83
Dixon Mitchell Investment Counsel
British Columbia, Canada
$75.5M
California State Teachers Retirement System (CalSTRS)
84
California State Teachers Retirement System (CalSTRS)
California
$75.3M
Two Sigma Advisers
85
Two Sigma Advisers
New York
$73.4M
Janus Henderson Group
86
Janus Henderson Group
United Kingdom
$72.7M
GIM
87
Glenmede Investment Management
Pennsylvania
$71.1M
MDSL
88
M.D. Sass LLC
New York
$70.9M
Wells Fargo
89
Wells Fargo
California
$70.5M
SSA
90
Schonfeld Strategic Advisors
New York
$69.3M
FAM
91
Fenimore Asset Management
New York
$69.1M
Westfield Capital Management
92
Westfield Capital Management
Massachusetts
$67.4M
Raymond James Financial
93
Raymond James Financial
Florida
$65.9M
Canada Life
94
Canada Life
Manitoba, Canada
$65.6M
RMDI
95
R.M. Davis Inc
Maine
$59.7M
BNP Paribas Asset Management
96
BNP Paribas Asset Management
France
$59M
National Pension Service
97
National Pension Service
South Korea
$58.8M
DB
98
Danske Bank
Denmark
$58.3M
Universal-Beteiligungs- und Servicegesellschaft
99
Universal-Beteiligungs- und Servicegesellschaft
Germany
$57.9M
CRC
100
Curi RMB Capital
Illinois
$55.4M