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
HighTower Advisors
276
HighTower Advisors
Illinois
$11.3M
SG
277
Sienna Gestion
France
$11.1M
MA
278
Montag & Associates
Georgia
$11M
Cetera Investment Advisers
279
Cetera Investment Advisers
Illinois
$10.8M
SC
280
SMA Capital
New York
$10.7M
OAM
281
OP Asset Management
$10.7M
Retirement Systems of Alabama
282
Retirement Systems of Alabama
Alabama
$10.5M
LP
283
Longaeva Partners
Illinois
$10.2M
KCM
284
Kornitzer Capital Management
Kansas
$10.2M
TC
285
TwinBeech Capital
New York
$10.1M
CA
286
Cornerstone Advisors
North Carolina
$10.1M
RBI
287
Raiffeisen Bank International
Austria
$10.1M
LRPA
288
L. Roy Papp & Associates
Arizona
$10M
II
289
IFM Investors
Australia
$10M
Verition Fund Management
290
Verition Fund Management
Connecticut
$9.82M
CCM
291
Carderock Capital Management
Maryland
$9.75M
X
292
Xponance
Pennsylvania
$9.75M
MSE
293
MUFG Securities EMEA
United Kingdom
$9.74M
BAMF
294
BI Asset Management Fondsmaeglerselskab
Denmark
$9.47M
Wealth Enhancement Advisory Services
295
Wealth Enhancement Advisory Services
Minnesota
$9.43M
SLAM
296
Swiss Life Asset Management
$9.41M
DCM
297
Dupont Capital Management
Delaware
$9.38M
FMC
298
First Merchants Corp
Indiana
$9.09M
SMDAM
299
Sumitomo Mitsui DS Asset Management
Japan
$9.08M
AB
300
Amalgamated Bank
New York
$9.01M