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
Commonwealth Equity Services
376
Commonwealth Equity Services
Massachusetts
$3.85M
GC
377
Guggenheim Capital
Illinois
$3.82M
N
378
Numerai
California
$3.8M
Public Sector Pension Investment Board (PSP Investments)
379
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$3.78M
GAM
380
Generali Asset Management
Italy
$3.69M
BCI
381
Brinker Capital Investments
Pennsylvania
$3.66M
KAS
382
Kestra Advisory Services
Texas
$3.61M
ClearBridge Investments
383
ClearBridge Investments
New York
$3.58M
GAM
384
Groupama Asset Management
France
$3.57M
MGP
385
Metis Global Partners
California
$3.56M
VIM
386
Vinva Investment Management
Australia
$3.47M
MC
387
Moors & Cabot
Massachusetts
$3.46M
MCM
388
MAI Capital Management
Ohio
$3.46M
BCM
389
Buckhead Capital Management
Georgia
$3.39M
CWP
390
Core Wealth Partners
California
$3.38M
HP
391
Hikari Power
Japan
$3.35M
CCIA
392
Campbell & Co Investment Adviser
Maryland
$3.3M
SCM
393
Seascape Capital Management
New Hampshire
$3.29M
BRCM
394
Bright Rock Capital Management
Massachusetts
$3.29M
Baird Financial Group
395
Baird Financial Group
Wisconsin
$3.21M
NRS
396
Neville Rodie & Shaw
New York
$3.19M
SPIA
397
Steward Partners Investment Advisory
New York
$3.14M
MSU
398
Mizuho Securities USA
New York
$3.11M
GH
399
GAM Holding
Switzerland
$3.11M
P
400
&Partners
Tennessee
$3.08M