1,109 hedge funds and large institutions have $41.8B invested in Ametek in 2025 Q4 according to their latest regulatory filings, with 175 funds opening new positions, 396 increasing their positions, 370 reducing their positions, and 69 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

8% more funds holding

Funds holding: 1,0271,109 (+82)

2.27% more ownership

Funds ownership: 86.27%88.54% (+2.3%)

7% more repeat investments, than reductions

Existing positions increased: 396 | Existing positions reduced: 370

Holders
1,109
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
24
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$87.1M
Puts
$49M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
NIM
326
NEOS Investment Management
Connecticut
$6.27M
HTI
327
Hikari Tsushin Inc
Japan
$6.27M
Public Sector Pension Investment Board (PSP Investments)
328
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$6.12M
AG
329
AIA Group
Hong Kong
$6.12M
IG
330
ING Group
Netherlands
$6.11M
OSAM
331
O'Shaughnessy Asset Management
Connecticut
$6.03M
AF
332
Aviso Financial
Ontario, Canada
$5.96M
PI
333
PineBridge Investments
New York
$5.96M
FMII
334
Farmers & Merchants Investments Inc
Nebraska
$5.92M
VPIM
335
Vanguard Personalized Indexing Management
California
$5.88M
OBAM
336
ODDO BHF Asset Management
France
$5.81M
MMM
337
Mendel Money Management
Illinois
$5.6M
PC
338
Promethos Capital
Massachusetts
$5.55M
Mercer Global Advisors
339
Mercer Global Advisors
Colorado
$5.54M
MC
340
Machina Capital
France
$5.51M
QCG
341
Quadrant Capital Group
Ohio
$5.44M
M&T Bank
342
M&T Bank
New York
$5.41M
SOADOR
343
State of Alaska Department of Revenue
Alaska
$5.41M
OPERF
344
Oregon Public Employees Retirement Fund
Oregon
$5.4M
Pathstone Holdings
345
Pathstone Holdings
New Jersey
$5.4M
GH
346
GAM Holding
Switzerland
$5.39M
YCM
347
Yousif Capital Management
Michigan
$5.36M
HI
348
Horizon Investments
North Carolina
$5.35M
ECSS
349
Eurizon Capital SGR SpA
$5.28M
AUB
350
Atlantic Union Bankshares
Virginia
$5.24M