1,009 hedge funds and large institutions have $37B invested in Ametek in 2025 Q3 according to their latest regulatory filings, with 118 funds opening new positions, 380 increasing their positions, 334 reducing their positions, and 75 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:

1% more capital invested

Capital invested by funds: $36.7B → $37B (+$292M)

2.62% less ownership

Funds ownership: 87.97%85.35% (-2.6%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,009
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
T. Rowe Price Investment Management
201
T. Rowe Price Investment Management
Maryland
$15.9M
Jane Street
202
Jane Street
New York
$15.8M
DCP
203
Distillate Capital Partners
Illinois
$15.8M
TG
204
TCW Group
California
$15.6M
Swedbank
205
Swedbank
Sweden
$15.4M
PMAM
206
Picton Mahoney Asset Management
Ontario, Canada
$15.3M
State of New Jersey Common Pension Fund D
207
State of New Jersey Common Pension Fund D
New Jersey
$15.2M
KK
208
KLP Kapitalforvaltning
Norway
$15.2M
Nisa Investment Advisors
209
Nisa Investment Advisors
Missouri
$15.1M
GIA
210
GHP Investment Advisors
Colorado
$14.9M
Ohio Public Employees Retirement System (OPERS)
211
Ohio Public Employees Retirement System (OPERS)
Ohio
$14.8M
QCM
212
Quantinno Capital Management
New York
$14.7M
CAM
213
Congress Asset Management
Massachusetts
$14.5M
Nomura Asset Management
214
Nomura Asset Management
Japan
$14.4M
Connor, Clark & Lunn Investment Management (CC&L)
215
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$14.3M
VCM
216
Voleon Capital Management
California
$14.3M
BDLIB
217
Banque de Luxembourg Investments (BLI)
Luxembourg
$14.2M
KCM
218
Kornitzer Capital Management
Kansas
$14.2M
IC
219
IEQ Capital
California
$14.1M
QT
220
Quantbot Technologies
New York
$13.9M
LF
221
Lansforsakringar Fondforvaltning
Sweden
$13.8M
RAM
222
Resona Asset Management
Japan
$13.7M
DnB Asset Management
223
DnB Asset Management
Norway
$13.6M
NCM
224
Novare Capital Management
North Carolina
$13.3M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
225
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$13.2M