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
CIC
351
Carnegie Investment Counsel
Ohio
$4.61M
MC
352
Machina Capital
France
$4.58M
RAM
353
Robocap Asset Management
United Kingdom
$4.57M
Mercer Global Advisors
354
Mercer Global Advisors
Colorado
$4.47M
CISOA
355
Capital Investment Services of America
Wisconsin
$4.44M
TIAA Trust, National Association
356
TIAA Trust, National Association
North Carolina
$4.4M
OAM
357
Ostrum Asset Management
France
$4.4M
HI
358
Horizon Investments
North Carolina
$4.33M
AIM
359
ARK Investment Management
Florida
$4.32M
ACM
360
Argent Capital Management
Missouri
$4.28M
UM
361
UniSuper Management
Australia
$4.27M
Pathstone Holdings
362
Pathstone Holdings
New Jersey
$4.22M
RC
363
Roundview Capital
New Jersey
$4.13M
TWP
364
Tyche Wealth Partners
Texas
$4.12M
FNA
365
First National Advisers
Nebraska
$4.12M
SLAM
366
Swiss Life Asset Management
$4.11M
AF
367
Allworth Financial
California
$4.09M
FAM
368
Fulcrum Asset Management
United Kingdom
$4.04M
Public Employees Retirement Association of Colorado
369
Public Employees Retirement Association of Colorado
Colorado
$4.01M
Fuller & Thaler Asset Management
370
Fuller & Thaler Asset Management
California
$4.01M
A
371
AlphaQuest
New York
$4.01M
EI
372
Ethic Inc
New York
$3.98M
1WM
373
1858 Wealth Management
Ohio
$3.98M
Rafferty Asset Management
374
Rafferty Asset Management
New York
$3.91M
FNBOO
375
First National Bank of Omaha
Nebraska
$3.87M