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Amphenol

2,100 hedge funds and large institutions have $145B invested in Amphenol in 2026 Q1 according to their latest regulatory filings, with 250 funds opening new positions, 860 increasing their positions, 800 reducing their positions, and 148 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

14% less funds holding in top 10

Funds holding in top 10: 9884 (-14)

38% less capital invested

Capital invested by funds: $233B → $145B (-$88.1B)

45% less call options, than puts

Call options by funds: $604M | Put options by funds: $1.1B

Holders
2,100
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
84
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$604M
Puts
$1.1B
Net Calls
Net Calls Change

Top Buyers

1 +$2.1B
2 +$1.64B
3 +$1.43B
4
N
Nuveen
North Carolina
+$749M
5
SG Americas Securities
SG Americas Securities
New York
+$437M

Top Sellers

1 -$10.7B
2 -$1.65B
3 -$1.34B
4
Fidelity Investments
Fidelity Investments
Massachusetts
-$977M
5
BlackRock
BlackRock
New York
-$587M
Name Holding Trade Value Shares
Change
Change in
Stake
NAMI
126
Nomura Asset Management International
Pennsylvania
$142M
Jane Street
127
Jane Street
New York
$139M
BNP Paribas Financial Markets
128
BNP Paribas Financial Markets
France
$137M
CAM
129
Close Asset Management
United Kingdom
$137M
William Blair Investment Management
130
William Blair Investment Management
Illinois
$136M
State Board of Administration of Florida Retirement System
131
State Board of Administration of Florida Retirement System
Florida
$134M
Nordea Investment Management
132
Nordea Investment Management
Sweden
$133M
DekaBank Deutsche Girozentrale
133
DekaBank Deutsche Girozentrale
Germany
$132M
Citadel Advisors
134
Citadel Advisors
Florida
$131M
Aviva
135
Aviva
United Kingdom
$130M
JIC
136
Johnson Investment Counsel
Ohio
$127M
APG Asset Management
137
APG Asset Management
Netherlands
$123M
CAM
138
Congress Asset Management
Massachusetts
$122M
ACP
139
Atalan Capital Partners
New York
$122M
New York State Teachers Retirement System (NYSTRS)
140
New York State Teachers Retirement System (NYSTRS)
New York
$121M
MBI
141
Montrusco Bolton Investments
Quebec, Canada
$118M
CPC
142
Cookson Peirce & Co
Pennsylvania
$117M
Korea Investment Corp
143
Korea Investment Corp
South Korea
$117M
HL
144
Harding Loevner
New Jersey
$113M
BFS
145
Bradley Foster & Sargent
Connecticut
$112M
BA
146
Bridgewater Associates
Connecticut
$109M
SFFS
147
Stonehage Fleming Financial Services
Jersey
$109M
Prudential Financial
148
Prudential Financial
New Jersey
$107M
RPI
149
Railway Pension Investments
United Kingdom
$107M
KeyBank National Association
150
KeyBank National Association
Ohio
$106M