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Amphenol

1,826 hedge funds and large institutions have $141B invested in Amphenol in 2025 Q3 according to their latest regulatory filings, with 283 funds opening new positions, 721 increasing their positions, 621 reducing their positions, and 85 closing their positions.

New
Increased
Maintained
Reduced
Closed

233% more first-time investments, than exits

New positions opened: 283 | Existing positions closed: 85

42% more call options, than puts

Call options by funds: $764M | Put options by funds: $539M

23% more capital invested

Capital invested by funds: $115B → $141B (+$26.4B)

19% more funds holding in top 10

Funds holding in top 10: 7893 (+15)

16% more repeat investments, than reductions

Existing positions increased: 721 | Existing positions reduced: 621

11% more funds holding

Funds holding: 1,6461,826 (+180)

2.83% less ownership

Funds ownership: 96.18%93.35% (-2.8%)

Holders
1,826
Holders Change
+180
Holders Change %
+10.94%
% of All Funds
23.97%
Holding in Top 10
93
Holding in Top 10 Change
+15
Holding in Top 10 Change %
+19.23%
% of All Funds
1.22%
New
283
Increased
721
Reduced
621
Closed
85
Calls
$764M
Puts
$539M
Net Calls
+$225M
Net Calls Change
+$60.9M
Name Holding Trade Value Shares
Change
Change in
Stake
CIC
101
Chilton Investment Company
Connecticut
$180M +$682K +6,216 +0.4%
UIM
102
USS Investment Management
United Kingdom
$177M +$62.6M +570,203 +66%
PCH
103
Polar Capital Holdings
United Kingdom
$176M -$70.9M -645,875 -31%
RMDI
104
R.M. Davis Inc
Maine
$174M -$7.41M -67,516 -5%
Macquarie Group
105
Macquarie Group
Australia
$174M +$113M +1,028,175 +272%
Citigroup
106
Citigroup
New York
$173M -$34.7M -316,419 -18%
Zurich Cantonal Bank
107
Zurich Cantonal Bank
Switzerland
$172M +$4.21M +38,369 +3%
CG
108
Carmignac Gestion
France
$167M -$59.2M -539,251 -28%
Prudential Financial
109
Prudential Financial
New Jersey
$166M +$45.2M +411,959 +44%
NAM
110
Nissay Asset Management
Japan
$166M +$64.9M +591,345 +79%
Schroder Investment Management Group
111
Schroder Investment Management Group
United Kingdom
$165M +$4.32M +39,351 +3%
SCM
112
Snyder Capital Management
California
$164M -$36.1M -328,681 -20%
APG Asset Management
113
APG Asset Management
Netherlands
$159M -$1.76M -16,008 -1%
Universal-Beteiligungs- und Servicegesellschaft
114
Universal-Beteiligungs- und Servicegesellschaft
Germany
$158M -$3.55M -32,364 -2%
Balyasny Asset Management
115
Balyasny Asset Management
Illinois
$158M +$15.4M +140,041 +12%
HL
116
Harding Loevner
New Jersey
$155M -$21M -191,563 -13%
TIA
117
Tandem Investment Advisors
South Carolina
$155M -$4.97M -45,315 -3%
PNC Financial Services Group
118
PNC Financial Services Group
Pennsylvania
$153M -$1.36M -12,376 -1%
DB
119
Danske Bank
Denmark
$153M -$27.3M -248,512 -17%
Man Group
120
Man Group
United Kingdom
$151M +$16.9M +153,991 +14%
First Trust Advisors
121
First Trust Advisors
Illinois
$150M -$1.97M -17,979 -1%
BNP Paribas Financial Markets
122
BNP Paribas Financial Markets
France
$144M +$41M +373,522 +47%
Russell Investments Group
123
Russell Investments Group
United Kingdom
$142M +$14.4M +131,470 +13%
Baird Financial Group
124
Baird Financial Group
Wisconsin
$141M +$9.54M +86,968 +8%
Impax Asset Management Group
125
Impax Asset Management Group
United Kingdom
$138M -$37.6M -343,020 -24%