1,123 hedge funds and large institutions have $42.1B invested in Ametek in 2025 Q4 according to their latest regulatory filings, with 183 funds opening new positions, 399 increasing their positions, 372 reducing their positions, and 70 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

9% more funds holding

Funds holding: 1,0301,123 (+93)

2.92% more ownership

Funds ownership: 86.28%89.2% (+2.9%)

7% more repeat investments, than reductions

Existing positions increased: 399 | Existing positions reduced: 372

Holders
1,123
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
24
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$87.1M
Puts
$49M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
COPPSERS
251
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$11M
MGIA
252
Moneta Group Investment Advisors
Missouri
$10.8M
PCM
253
Pinnbrook Capital Management
New York
$10.7M
CRM
254
Cramer Rosenthal McGlynn
Connecticut
$10.7M
RBI
255
Raiffeisen Bank International
Austria
$10.7M
MA
256
Montag & Associates
Georgia
$10.5M
SC
257
SMA Capital
New York
$10.5M
Janney Montgomery Scott
258
Janney Montgomery Scott
Pennsylvania
$10.2M
PR
259
Payden & Rygel
California
$10.1M
Retirement Systems of Alabama
260
Retirement Systems of Alabama
Alabama
$10.1M
MCM
261
Marsico Capital Management
Colorado
$9.99M
BFM
262
Boothbay Fund Management
New York
$9.96M
CII
263
Capital International Inc
California
$9.83M
N
264
Natixis
France
$9.63M
WCA
265
Waratah Capital Advisors
Ontario, Canada
$9.6M
Cetera Investment Advisers
266
Cetera Investment Advisers
Illinois
$9.43M
HighTower Advisors
267
HighTower Advisors
Illinois
$9.4M
LRPA
268
L. Roy Papp & Associates
Arizona
$9.32M
Mirae Asset Global Investments
269
Mirae Asset Global Investments
South Korea
$9.3M
ProShare Advisors
270
ProShare Advisors
Maryland
$9.29M
FAF
271
Första AP-fonden
Sweden
$9.28M
II
272
IFM Investors
Australia
$9.27M
EAM
273
Erste Asset Management
Austria
$9.16M
BTW
274
Boston Trust Walden
Massachusetts
$9.12M
CCM
275
Carderock Capital Management
Maryland
$8.99M