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1,151 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

114% more call options, than puts

Call options by funds: $99M | Put options by funds: $46.3M

51% more first-time investments, than exits

New positions opened: 136 | Existing positions closed: 90

25% more repeat investments, than reductions

Existing positions increased: 463 | Existing positions reduced: 369

2% more funds holding

Funds holding: 1,1261,151 (+25)

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
1,151
Holders Change
+25
Holders Change %
+2.22%
% of All Funds
14.18%
Holding in Top 10
22
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-8.33%
% of All Funds
0.27%
New
136
Increased
463
Reduced
369
Closed
90
Calls
$99M
Puts
$46.3M
Net Calls
+$52.8M
Net Calls Change
+$14.7M
Name Holding Trade Value Shares
Change
Change in
Stake
Voloridge Investment Management
76
Voloridge Investment Management
Florida
$109M -$59.6M -268,312 -35%
VGA
77
Vanguard Global Advisers
Pennsylvania
$108M +$112M +502,666 New
Sumitomo Mitsui Trust Group
78
Sumitomo Mitsui Trust Group
Japan
$107M -$6.31M -28,415 -5%
Thrivent Financial for Lutherans
79
Thrivent Financial for Lutherans
Minnesota
$106M +$494K +2,225 +0.5%
TG
80
TCW Group
California
$104M +$2.16M +9,722 +2%
BNP Paribas Financial Markets
81
BNP Paribas Financial Markets
France
$104M -$5.44M -24,467 -5%
Envestnet Asset Management
82
Envestnet Asset Management
Illinois
$101M +$63.5M +285,682 +155%
William Blair & Company
83
William Blair & Company
Illinois
$98.1M -$6.38M -28,727 -6%
RhumbLine Advisers
84
RhumbLine Advisers
Massachusetts
$97M -$188K -848 -0.2%
PC
85
Port Capital
Illinois
$92.7M -$4.32M -19,458 -4%
Capital International Investors
86
Capital International Investors
California
$91.9M +$8.26M +37,190 +9%
CIP
87
Champlain Investment Partners
Vermont
$91.2M -$42.6M -191,499 -31%
Ensign Peak Advisors
88
Ensign Peak Advisors
Utah
$90.3M -$5.85M -26,305 -6%
SEI Investments
89
SEI Investments
Pennsylvania
$89.9M +$16.5M +74,431 +22%
BNP Paribas Asset Management
90
BNP Paribas Asset Management
France
$89M +$4.32M +19,443 +5%
Wells Fargo
91
Wells Fargo
California
$87.2M +$4.79M +21,551 +6%
Prudential Financial
92
Prudential Financial
New Jersey
$87M +$60.5M +272,252 +204%
California Public Employees Retirement System
93
California Public Employees Retirement System
California
$86M -$6.73M -30,304 -7%
DMIC
94
Dixon Mitchell Investment Counsel
British Columbia, Canada
$85.7M -$434K -1,955 -0.5%
Raymond James Financial
95
Raymond James Financial
Florida
$83.6M +$1.18M +5,329 +1%
California State Teachers Retirement System (CalSTRS)
96
California State Teachers Retirement System (CalSTRS)
California
$83.1M -$2.27M -10,199 -3%
HL
97
Harding Loevner
New Jersey
$81.2M -$9.55M -42,985 -10%
Canada Pension Plan Investment Board
98
Canada Pension Plan Investment Board
Ontario, Canada
$80.7M +$9.53M +42,869 +13%
Point72 Asset Management
99
Point72 Asset Management
Connecticut
$80.1M +$55.3M +248,840 +199%
VAM
100
Vanguard Asset Management
$79.8M +$82.7M +372,139 New