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
LNWTC
476
Laird Norton Wetherby Trust Company
Washington
$2.49M
CAM
477
Close Asset Management
United Kingdom
$2.48M
SCA
478
Snowden Capital Advisors
New York
$2.47M
MSRPS
479
Maryland State Retirement & Pension System
Maryland
$2.46M
CAG
480
Cypress Advisory Group
Arizona
$2.44M
DF
481
Donoghue Forlines
Massachusetts
$2.44M
RG
482
Rathbones Group
United Kingdom
$2.39M
VWM
483
VCI Wealth Management
Missouri
$2.35M
BCM
484
Buckhead Capital Management
Georgia
$2.35M
Simplex Trading
485
Simplex Trading
Illinois
$2.34M
IWC
486
Integrated Wealth Concepts
Massachusetts
$2.33M
AG
487
Ascent Group
Virginia
$2.33M
PDL
488
Portfolio Design Labs
California
$2.33M
WP
489
Woodline Partners
California
$2.32M
PIM
490
Plato Investment Management
Australia
$2.31M
VNA
491
Valley National Advisers
Pennsylvania
$2.27M
VCM
492
Voleon Capital Management
California
$2.27M
OQS
493
Occudo Quantitative Strategies
Florida
$2.26M
NMERB
494
New Mexico Educational Retirement Board
New Mexico
$2.26M
SLI
495
Sumitomo Life Insurance
Japan
$2.25M
MOS
496
MGO One Seven
Ohio
$2.24M
DACS
497
Dymon Asia Capital (Singapore)
Singapore
$2.23M
BBHC
498
Brown Brothers Harriman & Co
New York
$2.21M
HA
499
Harfst & Associates
Wyoming
$2.21M
ALMGDA
500
AG2R La Mondiale Gestion d'Actifs
France
$2.21M