1,009 hedge funds and large institutions have $37B invested in Ametek in 2025 Q3 according to their latest regulatory filings, with 118 funds opening new positions, 380 increasing their positions, 334 reducing their positions, and 75 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:

1% more capital invested

Capital invested by funds: $36.7B → $37B (+$292M)

2.62% less ownership

Funds ownership: 87.97%85.35% (-2.6%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,009
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
Robeco Institutional Asset Management
251
Robeco Institutional Asset Management
Netherlands
$10.5M
COPPSERS
252
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$10.4M
HighTower Advisors
253
HighTower Advisors
Illinois
$10.2M
MGIA
254
Moneta Group Investment Advisors
Missouri
$9.88M
OAC
255
OMERS Administration Corp
Ontario, Canada
$9.64M
Janney Montgomery Scott
256
Janney Montgomery Scott
Pennsylvania
$9.53M
JF
257
Jump Financial
Illinois
$9.45M
Retirement Systems of Alabama
258
Retirement Systems of Alabama
Alabama
$9.26M
SCM
259
Sone Capital Management
New York
$9.26M
MA
260
Montag & Associates
Georgia
$9.25M
MCM
261
Marsico Capital Management
Colorado
$9.14M
RBI
262
Raiffeisen Bank International
Austria
$9.09M
ECM
263
Eisler Capital Management
United Kingdom
$9.09M
CII
264
Capital International Inc
California
$9.01M
Creative Planning
265
Creative Planning
Kansas
$8.91M
Cetera Investment Advisers
266
Cetera Investment Advisers
Illinois
$8.9M
State of Tennessee, Department of Treasury
267
State of Tennessee, Department of Treasury
Tennessee
$8.89M
MGWM
268
Marks Group Wealth Management
Minnesota
$8.84M
FAF
269
Första AP-fonden
Sweden
$8.72M
CGPCS
270
Capital Group Private Client Services
California
$8.72M
BMSSC
271
B. Metzler seel. Sohn & Co
Germany
$8.65M
AB
272
Amalgamated Bank
New York
$8.55M
CCM
273
Carderock Capital Management
Maryland
$8.31M
II
274
IFM Investors
Australia
$8.26M
LRPA
275
L. Roy Papp & Associates
Arizona
$8.21M