1,027 hedge funds and large institutions have $37.4B invested in Ametek in 2025 Q3 according to their latest regulatory filings, with 119 funds opening new positions, 387 increasing their positions, 341 reducing their positions, and 74 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: $36.7B → $37.4B (+$642M)

1.82% less ownership

Funds ownership: 88.09%86.27% (-1.8%)

7% less funds holding in top 10

Funds holding in top 10: 1514 (-1)

Holders
1,027
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
II
276
IFM Investors
Australia
$8.26M
LRPA
277
L. Roy Papp & Associates
Arizona
$8.21M
TRSOTSOK
278
Teachers Retirement System of the State of Kentucky
Kentucky
$8.18M
SAM
279
Sawgrass Asset Management
Florida
$8.08M
ProShare Advisors
280
ProShare Advisors
Maryland
$7.92M
GCM
281
Graham Capital Management
Connecticut
$7.91M
Stifel Financial
282
Stifel Financial
Missouri
$7.86M
N
283
Natixis
France
$7.82M
UHC
284
Union Heritage Capital
Michigan
$7.77M
HIC
285
Harvey Investment Company
Kentucky
$7.68M
CCS
286
Concentric Capital Strategies
Connecticut
$7.61M
UIM
287
USS Investment Management
United Kingdom
$7.5M
SMDAM
288
Sumitomo Mitsui DS Asset Management
Japan
$7.46M
SI
289
Stephens Inc
Arkansas
$7.34M
IMPI
290
Ilmarinen Mutual Pension Insurance
Finland
$7.33M
AG
291
Ascent Group
Virginia
$7.19M
URS
292
Utah Retirement Systems
Utah
$7.14M
Mirae Asset Global Investments
293
Mirae Asset Global Investments
South Korea
$7.12M
NAMP
294
NorthStar Asset Management (Pennsylvania)
Pennsylvania
$7.05M
PFSRSONJ
295
Police & Firemen's Retirement System of New Jersey
New Jersey
$6.97M
Schroder Investment Management Group
296
Schroder Investment Management Group
United Kingdom
$6.96M
PGFC
297
Peapack-Gladstone Financial Corp
New Jersey
$6.96M
MIM
298
Martin Investment Management
Florida
$6.82M
BA
299
Bridgewater Associates
Connecticut
$6.81M
MIP
300
Marietta Investment Partners
Wisconsin
$6.8M