1,116 hedge funds and large institutions have $42.1B invested in Ametek in 2025 Q4 according to their latest regulatory filings, with 180 funds opening new positions, 398 increasing their positions, 370 reducing their positions, and 70 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

9% more funds holding

Funds holding: 1,0271,116 (+89)

2.87% more ownership

Funds ownership: 86.26%89.14% (+2.9%)

8% more repeat investments, than reductions

Existing positions increased: 398 | Existing positions reduced: 370

Holders
1,116
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
24
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$87.1M
Puts
$49M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
WSFS
426
Wilmington Savings Fund Society
Delaware
$2.75M
HIMCH
427
Hartford Investment Management Co (HIMCO)
Connecticut
$2.74M
STA
428
Summit Trail Advisors
New York
$2.73M
BFG
429
Bleakley Financial Group
New Jersey
$2.69M
OWIM
430
Old West Investment Management
California
$2.66M
Rockefeller Capital Management
431
Rockefeller Capital Management
New York
$2.65M
PCM
432
Polymer Capital Management
New York
$2.62M
QCM
433
QRG Capital Management
Illinois
$2.58M
FWCM
434
Ferguson Wellman Capital Management
Oregon
$2.56M
HPG
435
Harvest Portfolios Group
Ontario, Canada
$2.55M
CIS
436
Capital International Sarl
California
$2.55M
Northwestern Mutual Wealth Management
437
Northwestern Mutual Wealth Management
Wisconsin
$2.55M
Cambridge Investment Research Advisors
438
Cambridge Investment Research Advisors
Iowa
$2.53M
CF
439
Convergence Financial
Missouri
$2.53M
CPW
440
Cove Private Wealth
New York
$2.52M
DILIC
441
Dai-ichi Life Insurance Company
Japan
$2.5M
MML Investors Services
442
MML Investors Services
Massachusetts
$2.49M
BC
443
Burney Company
Virginia
$2.48M
AAM
444
Advisors Asset Management
Colorado
$2.46M
DGM
445
Delta Global Management
New York
$2.46M
LNWTC
446
Laird Norton Wetherby Trust Company
Washington
$2.46M
KIC
447
Kensington Investment Counsel
California
$2.44M
LSERS
448
Louisiana State Employees Retirement System
Louisiana
$2.42M
GIBU
449
Gulf International Bank (UK)
United Kingdom
$2.38M
MSRPS
450
Maryland State Retirement & Pension System
Maryland
$2.36M