1,027 hedge funds and large institutions have $37.4B invested in Ametek in 2025 Q3 according to their latest regulatory filings, with 119 funds opening new positions, 387 increasing their positions, 341 reducing their positions, and 74 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 → $37.4B (+$642M)

1.82% less ownership

Funds ownership: 88.09%86.27% (-1.8%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,027
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
QCG
351
Quadrant Capital Group
Ohio
$4.62M
CIC
352
Carnegie Investment Counsel
Ohio
$4.61M
MC
353
Machina Capital
France
$4.58M
RAM
354
Robocap Asset Management
United Kingdom
$4.57M
Mercer Global Advisors
355
Mercer Global Advisors
Colorado
$4.47M
CISOA
356
Capital Investment Services of America
Wisconsin
$4.44M
TIAA Trust, National Association
357
TIAA Trust, National Association
North Carolina
$4.4M
OAM
358
Ostrum Asset Management
France
$4.4M
HI
359
Horizon Investments
North Carolina
$4.33M
AIM
360
ARK Investment Management
Florida
$4.32M
ACM
361
Argent Capital Management
Missouri
$4.28M
UM
362
UniSuper Management
Australia
$4.27M
Pathstone Holdings
363
Pathstone Holdings
New Jersey
$4.22M
RC
364
Roundview Capital
New Jersey
$4.13M
TWP
365
Tyche Wealth Partners
Texas
$4.12M
FNA
366
First National Advisers
Nebraska
$4.12M
SLAM
367
Swiss Life Asset Management
$4.11M
AF
368
Allworth Financial
California
$4.09M
FAM
369
Fulcrum Asset Management
United Kingdom
$4.04M
Public Employees Retirement Association of Colorado
370
Public Employees Retirement Association of Colorado
Colorado
$4.01M
Fuller & Thaler Asset Management
371
Fuller & Thaler Asset Management
California
$4.01M
A
372
AlphaQuest
New York
$4.01M
EI
373
Ethic Inc
New York
$3.98M
1WM
374
1858 Wealth Management
Ohio
$3.98M
Rafferty Asset Management
375
Rafferty Asset Management
New York
$3.91M