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1,150 hedge funds and large institutions have $43B invested in Ametek in 2026 Q1 according to their latest regulatory filings, with 136 funds opening new positions, 463 increasing their positions, 369 reducing their positions, and 90 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:

2% more capital invested

Capital invested by funds: $42.1B → $43B (+$859M)

1.54% less ownership

Funds ownership: 89.22%87.68% (-1.5%)

8% less funds holding in top 10

Funds holding in top 10: 2422 (-2)

Holders
1,150
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
LIP
351
Lighthouse Investment Partners
Florida
$6.49M
UM
352
UniSuper Management
Australia
$6.49M
CII
353
Capital International Inc
California
$6.44M
Brown Advisory
354
Brown Advisory
Maryland
$6.42M
CIA
355
CCM Investment Advisers
South Carolina
$6.37M
IG
356
ING Group
Netherlands
$6.36M
VPIM
357
Vanguard Personalized Indexing Management
California
$6.26M
AF
358
Aviso Financial
Ontario, Canada
$6.25M
Osaic Holdings
359
Osaic Holdings
Arizona
$6.09M
FMII
360
Farmers & Merchants Investments Inc
Nebraska
$6.06M
ECSS
361
Eurizon Capital SGR SpA
$6.03M
OAM
362
Ostrum Asset Management
France
$5.98M
PI
363
PineBridge Investments
New York
$5.92M
YCM
364
Yousif Capital Management
Michigan
$5.83M
Credit Agricole
365
Credit Agricole
France
$5.83M
GAAM
366
Guinness Atkinson Asset Management
California
$5.82M
CGPCS
367
Capital Group Private Client Services
California
$5.8M
Mackenzie Financial
368
Mackenzie Financial
Ontario, Canada
$5.76M
CIA
369
Concurrent Investment Advisors
Florida
$5.75M
JFG
370
Jefferies Financial Group
New York
$5.75M
MMM
371
Mendel Money Management
Illinois
$5.74M
QCG
372
Quadrant Capital Group
Ohio
$5.72M
OPERF
373
Oregon Public Employees Retirement Fund
Oregon
$5.66M
Pathstone Holdings
374
Pathstone Holdings
New Jersey
$5.64M
SOADOR
375
State of Alaska Department of Revenue
Alaska
$5.63M