1,109 hedge funds and large institutions have $41.8B invested in Ametek in 2025 Q4 according to their latest regulatory filings, with 175 funds opening new positions, 396 increasing their positions, 370 reducing their positions, and 69 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: $ → $

8% more funds holding

Funds holding: 1,0271,109 (+82)

2.27% more ownership

Funds ownership: 86.27%88.54% (+2.3%)

7% more repeat investments, than reductions

Existing positions increased: 396 | Existing positions reduced: 370

Holders
1,109
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
OAM
376
Ostrum Asset Management
France
$4.31M
FAM
377
Fulcrum Asset Management
United Kingdom
$4.29M
SLAM
378
Swiss Life Asset Management
$4.28M
Rafferty Asset Management
379
Rafferty Asset Management
New York
$4.21M
Fuller & Thaler Asset Management
380
Fuller & Thaler Asset Management
California
$4.19M
VCM
381
Voleon Capital Management
California
$4.19M
FNBOO
382
First National Bank of Omaha
Nebraska
$4.17M
SC
383
SummitTX Capital
Texas
$4.15M
TIAA Trust, National Association
384
TIAA Trust, National Association
North Carolina
$4.1M
Commonwealth Equity Services
385
Commonwealth Equity Services
Massachusetts
$3.97M
P
386
&Partners
Tennessee
$3.93M
ClearBridge Investments
387
ClearBridge Investments
New York
$3.91M
IMCOOI
388
Investment Management Corp of Ontario (IMCO)
Canada
$3.89M
BAMF
389
BI Asset Management Fondsmaeglerselskab
Denmark
$3.86M
MC
390
Moors & Cabot
Massachusetts
$3.79M
A
391
AlphaQuest
New York
$3.76M
ACM
392
Aquatic Capital Management
Illinois
$3.74M
PA
393
PFG Advisors
Arizona
$3.74M
DSC
394
Duncker Streett & Co
Missouri
$3.74M
TRSOTSOK
395
Teachers Retirement System of the State of Kentucky
Kentucky
$3.72M
GAM
396
Groupama Asset Management
France
$3.7M
BCM
397
Buckhead Capital Management
Georgia
$3.7M
CWP
398
Core Wealth Partners
California
$3.7M
SCM
399
Seascape Capital Management
New Hampshire
$3.67M
HP
400
Hikari Power
Japan
$3.66M