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Amphenol

2,025 hedge funds and large institutions have $233B invested in Amphenol in 2025 Q4 according to their latest regulatory filings, with 323 funds opening new positions, 775 increasing their positions, 745 reducing their positions, and 81 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

more ownership

Funds ownership:

4% more funds holding in top 10

Funds holding in top 10: 9296 (+4)

4% more repeat investments, than reductions

Existing positions increased: 775 | Existing positions reduced: 745

15% less call options, than puts

Call options by funds: $643M | Put options by funds: $753M

Holders
2,025
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
96
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$643M
Puts
$753M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Mackenzie Financial
76
Mackenzie Financial
Ontario, Canada
$267M
California State Teachers Retirement System (CalSTRS)
77
California State Teachers Retirement System (CalSTRS)
California
$259M
Man Group
78
Man Group
United Kingdom
$254M
Alyeska Investment Group
79
Alyeska Investment Group
Illinois
$250M
A
80
AustralianSuper
Australia
$244M
Kayne Anderson Rudnick Investment Management
81
Kayne Anderson Rudnick Investment Management
California
$240M
Allspring Global Investments
82
Allspring Global Investments
North Carolina
$239M
Ameriprise
83
Ameriprise
Minnesota
$237M
Schroder Investment Management Group
84
Schroder Investment Management Group
United Kingdom
$232M
BAMCO Inc
85
BAMCO Inc
New York
$231M
WorldQuant Millennium Advisors
86
WorldQuant Millennium Advisors
New York
$227M
AM
87
AGF Management
Ontario, Canada
$226M
MIM
88
Meridiem Investment Management
United Kingdom
$225M
FAM
89
Fenimore Asset Management
New York
$225M
Lord, Abbett & Co
90
Lord, Abbett & Co
New Jersey
$219M
Citigroup
91
Citigroup
New York
$216M
Canada Pension Plan Investment Board
92
Canada Pension Plan Investment Board
Ontario, Canada
$211M
JHP
93
James Hambro & Partners
United Kingdom
$211M
LPL Financial
94
LPL Financial
California
$207M
MC
95
Maren Capital
Illinois
$202M
UIM
96
USS Investment Management
United Kingdom
$201M
Russell Investments Group
97
Russell Investments Group
United Kingdom
$193M
GT
98
Glenmede Trust
Pennsylvania
$191M
Universal-Beteiligungs- und Servicegesellschaft
99
Universal-Beteiligungs- und Servicegesellschaft
Germany
$189M
BNP Paribas Financial Markets
100
BNP Paribas Financial Markets
France
$188M