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
UM
351
UniSuper Management
Australia
$6.49M
CII
352
Capital International Inc
California
$6.44M
Brown Advisory
353
Brown Advisory
Maryland
$6.42M
CIA
354
CCM Investment Advisers
South Carolina
$6.37M
IG
355
ING Group
Netherlands
$6.36M
VPIM
356
Vanguard Personalized Indexing Management
California
$6.26M
AF
357
Aviso Financial
Ontario, Canada
$6.25M
Osaic Holdings
358
Osaic Holdings
Arizona
$6.09M
FMII
359
Farmers & Merchants Investments Inc
Nebraska
$6.06M
ECSS
360
Eurizon Capital SGR SpA
$6.03M
OAM
361
Ostrum Asset Management
France
$5.98M
PI
362
PineBridge Investments
New York
$5.92M
YCM
363
Yousif Capital Management
Michigan
$5.83M
Credit Agricole
364
Credit Agricole
France
$5.83M
GAAM
365
Guinness Atkinson Asset Management
California
$5.82M
CGPCS
366
Capital Group Private Client Services
California
$5.8M
Mackenzie Financial
367
Mackenzie Financial
Ontario, Canada
$5.76M
CIA
368
Concurrent Investment Advisors
Florida
$5.75M
JFG
369
Jefferies Financial Group
New York
$5.75M
MMM
370
Mendel Money Management
Illinois
$5.74M
QCG
371
Quadrant Capital Group
Ohio
$5.72M
OPERF
372
Oregon Public Employees Retirement Fund
Oregon
$5.66M
Pathstone Holdings
373
Pathstone Holdings
New Jersey
$5.64M
SOADOR
374
State of Alaska Department of Revenue
Alaska
$5.63M
HI
375
Horizon Investments
North Carolina
$5.54M