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
HWA
201
HCR Wealth Advisors
California
$16.1M
T. Rowe Price Investment Management
202
T. Rowe Price Investment Management
Maryland
$15.9M
Jane Street
203
Jane Street
New York
$15.8M
DCP
204
Distillate Capital Partners
Illinois
$15.8M
TG
205
TCW Group
California
$15.6M
Swedbank
206
Swedbank
Sweden
$15.4M
PMAM
207
Picton Mahoney Asset Management
Ontario, Canada
$15.3M
State of New Jersey Common Pension Fund D
208
State of New Jersey Common Pension Fund D
New Jersey
$15.2M
KK
209
KLP Kapitalforvaltning
Norway
$15.2M
Nisa Investment Advisors
210
Nisa Investment Advisors
Missouri
$15.1M
GIA
211
GHP Investment Advisors
Colorado
$14.9M
Ohio Public Employees Retirement System (OPERS)
212
Ohio Public Employees Retirement System (OPERS)
Ohio
$14.8M
QCM
213
Quantinno Capital Management
New York
$14.7M
CAM
214
Congress Asset Management
Massachusetts
$14.5M
Nomura Asset Management
215
Nomura Asset Management
Japan
$14.4M
Connor, Clark & Lunn Investment Management (CC&L)
216
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$14.3M
VCM
217
Voleon Capital Management
California
$14.3M
BDLIB
218
Banque de Luxembourg Investments (BLI)
Luxembourg
$14.2M
KCM
219
Kornitzer Capital Management
Kansas
$14.2M
IC
220
IEQ Capital
California
$14.1M
QT
221
Quantbot Technologies
New York
$13.9M
LF
222
Lansforsakringar Fondforvaltning
Sweden
$13.8M
RAM
223
Resona Asset Management
Japan
$13.7M
DnB Asset Management
224
DnB Asset Management
Norway
$13.6M
NCM
225
Novare Capital Management
North Carolina
$13.3M