1,147 hedge funds and large institutions have $43B invested in Ametek in 2026 Q1 according to their latest regulatory filings, with 137 funds opening new positions, 461 increasing their positions, 368 reducing their positions, and 92 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,147
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
22
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$99M
Puts
$46.3M
Net Calls
Net Calls Change

Top Buyers

1 +$247M
2 +$168M
3 +$143M
4
Two Sigma Investments
Two Sigma Investments
New York
+$138M
5
JP Morgan Chase
JP Morgan Chase
New York
+$122M

Top Sellers

1 -$256M
2 -$232M
3 -$215M
4
BlackRock
BlackRock
New York
-$183M
5
ATO
Alecta Tjanstepension Omsesidigt
Sweden
-$165M
Name Holding Trade Value Shares
Change
Change in
Stake
BDLIB
251
Banque de Luxembourg Investments (BLI)
Luxembourg
$13.9M
CF
252
Covea Finance
France
$13.8M
Nisa Investment Advisors
253
Nisa Investment Advisors
Missouri
$13.7M
Carson Wealth (CWM LLC)
254
Carson Wealth (CWM LLC)
Nebraska
$13.7M
PR
255
Payden & Rygel
California
$13.5M
ACM
256
Aquatic Capital Management
Illinois
$13.5M
CNB
257
Czech National Bank
Czech Republic
$13.4M
ASRS
258
Arizona State Retirement System
Arizona
$13.4M
N
259
Natixis
France
$13.3M
IMCOOI
260
Investment Management Corp of Ontario (IMCO)
Canada
$13.2M
QT
261
Quantbot Technologies
New York
$13.2M
EWA
262
EP Wealth Advisors
California
$13.1M
RBCM
263
Raub Brock Capital Management
California
$13.1M
SOMRS
264
State of Michigan Retirement System
Michigan
$12.9M
Stifel Financial
265
Stifel Financial
Missouri
$12.5M
Handelsbanken Fonder
266
Handelsbanken Fonder
Sweden
$12.4M
SSA
267
Schonfeld Strategic Advisors
New York
$12.3M
BS
268
Banco Santander
Spain
$12.2M
Mirae Asset Global Investments
269
Mirae Asset Global Investments
South Korea
$12.2M
JA
270
JLB & Associates
Michigan
$12.2M
MIM
271
MetLife Investment Management
New Jersey
$11.5M
COPPSERS
272
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$11.5M
CRM
273
Cramer Rosenthal McGlynn
Connecticut
$11.5M
FAF
274
Fjarde Ap-fonden
Sweden
$11.3M
MGIA
275
Moneta Group Investment Advisors
Missouri
$11.3M