1,009 hedge funds and large institutions have $37B invested in Ametek in 2025 Q3 according to their latest regulatory filings, with 118 funds opening new positions, 380 increasing their positions, 334 reducing their positions, and 75 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:

1% more capital invested

Capital invested by funds: $36.7B → $37B (+$292M)

2.62% less ownership

Funds ownership: 87.97%85.35% (-2.6%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,009
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
14
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$48.8M
Puts
$15.2M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
PIM
451
Plato Investment Management
Australia
$2M
SBFM
452
S-Bank Fund Management
Finland
$2M
MOS
453
MGO One Seven
Ohio
$1.99M
CS
454
Candriam SCA
Luxembourg
$1.96M
AAM
455
Advisors Asset Management
Colorado
$1.94M
SLI
456
Sumitomo Life Insurance
Japan
$1.91M
TI
457
Tidal Investments
Wisconsin
$1.89M
TCPG
458
Trivant Custom Portfolio Group
California
$1.84M
HA
459
Harfst & Associates
Wyoming
$1.81M
RMC
460
Resources Management Corp
Connecticut
$1.81M
TRCT
461
Tower Research Capital (TRC)
New York
$1.78M
OC
462
Oppenheimer & Co
New York
$1.76M
RB
463
Rodgers Brothers
Pennsylvania
$1.74M
WA
464
Wasatch Advisors
Utah
$1.73M
ALMGDA
465
AG2R La Mondiale Gestion d'Actifs
France
$1.73M
PDL
466
Portfolio Design Labs
California
$1.72M
QCM
467
QRG Capital Management
Illinois
$1.69M
PP
468
Prudential plc
United Kingdom
$1.67M
IIM
469
Illumine Investment Management
Washington
$1.66M
CGH
470
Crossmark Global Holdings
Texas
$1.66M
VAS
471
Vestmark Advisory Solutions
Massachusetts
$1.66M
VA
472
Vident Advisory
Georgia
$1.65M
ACA
473
Affinity Capital Advisors
California
$1.65M
MAG
474
Mayfair Advisory Group
Alabama
$1.64M
A
475
AustralianSuper
Australia
$1.63M