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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
MPIA
151
Mountain Pacific Investment Advisers
Idaho
$38.6M -$1.62M -7,292 -4%
DKCM
152
Davidson Kempner Capital Management
New York
$38.6M +$12.2M +55,000 +44%
NSAM
153
North Star Asset Management
Wisconsin
$37.6M -$519K -2,334 -1%
Marshall Wace
154
Marshall Wace
United Kingdom
$37.1M +$6.15M +27,694 +19%
MVIP
155
Mar Vista Investment Partners
California
$36.7M -$933K -4,199 -2%
HCMG
156
Howard Capital Management Group
California
$35.4M +$832K +3,745 +2%
DP
157
Dundas Partners
United Kingdom
$35.1M -$1.38M -6,219 -4%
Teacher Retirement System of Texas
158
Teacher Retirement System of Texas
Texas
$34.8M -$10.6M -47,517 -23%
QCM
159
Quantinno Capital Management
New York
$34.4M +$7.59M +34,149 +27%
New York State Teachers Retirement System (NYSTRS)
160
New York State Teachers Retirement System (NYSTRS)
New York
$34.4M +$22.2K +100 +0.1%
Jane Street
161
Jane Street
New York
$34.1M +$32.1M +144,301 +966%
Allspring Global Investments
162
Allspring Global Investments
North Carolina
$34.1M +$46.7K +210 +0.1%
AV
163
ASR Vermogensbeheer
Netherlands
$33.5M -$31.8K -143 -0.1%
Daiwa Securities Group
164
Daiwa Securities Group
Japan
$33.2M +$995K +4,476 +3%
Walleye Capital
165
Walleye Capital
New York
$32.7M +$14M +62,919 +70%
SAM
166
Storebrand Asset Management
Norway
$32M +$8.45M +38,004 +34%
National Bank of Canada
167
National Bank of Canada
Quebec, Canada
$31.9M -$1.45M -6,536 -4%
GAM
168
Gotham Asset Management
New York
$31.7M +$11.5M +51,629 +54%
Korea Investment Corp
169
Korea Investment Corp
South Korea
$31.5M -$5.79M -26,044 -15%
Manulife (Manufacturers Life Insurance)
170
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$31.4M -$12.7M -57,200 -28%
SO
171
STRS Ohio
Ohio
$31.1M -$2K -9 -0%
LPL Financial
172
LPL Financial
California
$30.8M +$7.15M +32,154 +29%
CP
173
Cumberland Partners
Ontario, Canada
$30.8M +$26.8M +120,473 +522%
ZIC
174
ZWJ Investment Counsel
Georgia
$30.1M +$4.63M +20,821 +17%
VNIM
175
Vaughan Nelson Investment Management
Texas
$30.1M +$752K +3,385 +2%