1,028 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, 388 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: 88.1%86.28% (-1.8%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,028
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
Rafferty Asset Management
376
Rafferty Asset Management
New York
$3.91M
FNBOO
377
First National Bank of Omaha
Nebraska
$3.87M
Commonwealth Equity Services
378
Commonwealth Equity Services
Massachusetts
$3.85M
GC
379
Guggenheim Capital
Illinois
$3.82M
N
380
Numerai
California
$3.8M
Public Sector Pension Investment Board (PSP Investments)
381
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$3.78M
GAM
382
Generali Asset Management
Italy
$3.69M
BCI
383
Brinker Capital Investments
Pennsylvania
$3.66M
KAS
384
Kestra Advisory Services
Texas
$3.61M
ClearBridge Investments
385
ClearBridge Investments
New York
$3.58M
GAM
386
Groupama Asset Management
France
$3.57M
MGP
387
Metis Global Partners
California
$3.56M
VIM
388
Vinva Investment Management
Australia
$3.47M
MC
389
Moors & Cabot
Massachusetts
$3.46M
MCM
390
MAI Capital Management
Ohio
$3.46M
BCM
391
Buckhead Capital Management
Georgia
$3.39M
CWP
392
Core Wealth Partners
California
$3.38M
HP
393
Hikari Power
Japan
$3.35M
CCIA
394
Campbell & Co Investment Adviser
Maryland
$3.3M
SCM
395
Seascape Capital Management
New Hampshire
$3.29M
BRCM
396
Bright Rock Capital Management
Massachusetts
$3.29M
Baird Financial Group
397
Baird Financial Group
Wisconsin
$3.21M
NRS
398
Neville Rodie & Shaw
New York
$3.19M
SPIA
399
Steward Partners Investment Advisory
New York
$3.14M
MSU
400
Mizuho Securities USA
New York
$3.11M