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
TRSOTSOK
276
Teachers Retirement System of the State of Kentucky
Kentucky
$8.18M
SAM
277
Sawgrass Asset Management
Florida
$8.08M
ProShare Advisors
278
ProShare Advisors
Maryland
$7.92M
GCM
279
Graham Capital Management
Connecticut
$7.91M
Stifel Financial
280
Stifel Financial
Missouri
$7.86M
N
281
Natixis
France
$7.82M
UHC
282
Union Heritage Capital
Michigan
$7.77M
HIC
283
Harvey Investment Company
Kentucky
$7.68M
CCS
284
Concentric Capital Strategies
Connecticut
$7.61M
UIM
285
USS Investment Management
United Kingdom
$7.5M
SMDAM
286
Sumitomo Mitsui DS Asset Management
Japan
$7.46M
SI
287
Stephens Inc
Arkansas
$7.34M
IMPI
288
Ilmarinen Mutual Pension Insurance
Finland
$7.33M
AG
289
Ascent Group
Virginia
$7.19M
URS
290
Utah Retirement Systems
Utah
$7.14M
Mirae Asset Global Investments
291
Mirae Asset Global Investments
South Korea
$7.12M
NAMP
292
NorthStar Asset Management (Pennsylvania)
Pennsylvania
$7.05M
PFSRSONJ
293
Police & Firemen's Retirement System of New Jersey
New Jersey
$6.97M
Schroder Investment Management Group
294
Schroder Investment Management Group
United Kingdom
$6.96M
PGFC
295
Peapack-Gladstone Financial Corp
New Jersey
$6.96M
MIM
296
Martin Investment Management
Florida
$6.82M
BA
297
Bridgewater Associates
Connecticut
$6.81M
MIP
298
Marietta Investment Partners
Wisconsin
$6.8M
Mackenzie Financial
299
Mackenzie Financial
Ontario, Canada
$6.79M
JIC
300
Johnson Investment Counsel
Ohio
$6.76M