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1,150 hedge funds and large institutions have $43B invested in Ametek in 2026 Q1 according to their latest regulatory filings, with 136 funds opening new positions, 463 increasing their positions, 369 reducing their positions, and 90 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: $42.1B → $43B (+$859M)

1.54% less ownership

Funds ownership: 89.22%87.68% (-1.5%)

8% less funds holding in top 10

Funds holding in top 10: 2422 (-2)

Holders
1,150
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
22
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$99M
Puts
$46.3M
Net Calls
Net Calls Change

Top Buyers

1 +$247M
2 +$168M
3 +$143M
4
Two Sigma Investments
Two Sigma Investments
New York
+$138M
5
JP Morgan Chase
JP Morgan Chase
New York
+$122M

Top Sellers

1 -$256M
2 -$232M
3 -$215M
4
BlackRock
BlackRock
New York
-$183M
5
ATO
Alecta Tjanstepension Omsesidigt
Sweden
-$165M
Name Holding Trade Value Shares
Change
Change in
Stake
BFO
1201
Boston Family Office
Massachusetts
M1FG
1202
Mach-1 Financial Group
Arkansas
WFI
1203
West Family Investments
California
SAM
1204
Sagewood Asset Management
New York
AG
1205
Algert Global
California
JGC
1206
J. Goldman & Co
New York
GDP
1207
Great Diamond Partners
Maine
Group One Trading
1208
Group One Trading
Illinois
BP
1209
BNP Paribas
France
CIAM
1210
Caitong International Asset Management
Hong Kong
SIM
1211
Sentry Investment Management
Wisconsin
CCA
1212
Catalyst Capital Advisors
New York
LWANC
1213
Laurel Wealth Advisors (North Carolina)
North Carolina
BFPW
1214
BOK Financial Private Wealth
Colorado
TW
1215
Titan Wealth
FHA
1216
Flagship Harbor Advisors
Massachusetts
BF
1217
BOK Financial
Oklahoma
MW
1218
Merited Wealth
Florida
GWM
1219
Greenline Wealth Management
Florida
EW
1220
Elyxium Wealth
California
IUHSA
1221
Itau Unibanco Holding S.A.
Brazil
HHMI
1222
Howard Hughes Medical Institute
Maryland
BSB
1223
Bangor Savings Bank
Maine
CWM
1224
Cedar Wealth Management
California
OC
1225
Optima Capital
Oregon