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Amphenol
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Overview Fund Activity

1,410 hedge funds and large institutions have $74.1B invested in Amphenol in 2025 Q1 according to their latest regulatory filings, with 184 funds opening new positions, 593 increasing their positions, 463 reducing their positions, and 137 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,410
Holders Change
+22
Holders Change %
+1.59%
% of All Funds
19.16%
Holding in Top 10
46
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-8%
% of All Funds
0.63%
New
184
Increased
593
Reduced
463
Closed
137
Calls
$259M
Puts
$179M
Net Calls
+$79.2M
Net Calls Change
+$60.6M

Top Buyers

1
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
$1.1B
2
UBS AM
UBS AM
Illinois
$574M
3
Wellington Management Group
Wellington Management Group
Massachusetts
$798M
4
Franklin Resources
Franklin Resources
California
$725M
5
BlackRock
BlackRock
New York
$6.68B

Top Sellers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$2.76B
2
Citadel Advisors
Citadel Advisors
Florida
$77M
3
Winslow Capital Management
Winslow Capital Management
Minnesota
$250K
4
Balyasny Asset Management
Balyasny Asset Management
Illinois
$38.9M
5
Mawer Investment Management
Mawer Investment Management
Alberta, Canada
$582M
Name Holding Trade Value Shares
Change 		Shares
Change %
APG Asset Management
101
APG Asset Management
Netherlands
$84.2M -$11.9M -195,828 -12%
PC
102
Port Capital
Illinois
$83.8M -$6.65M -101,420 -7%
Canada Pension Plan Investment Board
103
Canada Pension Plan Investment Board
Ontario, Canada
$83.1M +$53.6M +816,884 +182%
PCH
104
Polar Capital Holdings
United Kingdom
$82.9M -$113M -1,727,602 -58%
PNC Financial Services Group
105
PNC Financial Services Group
Pennsylvania
$82.6M -$1.28M -19,464 -2%
State Board of Administration of Florida Retirement System
106
State Board of Administration of Florida Retirement System
Florida
$78.4M -$1.47M -22,460 -2%
ACM
107
Analog Century Management
New York
$77.2M -$8.46M -128,944 -10%
Voloridge Investment Management
108
Voloridge Investment Management
Florida
$77.1M +$40.7M +620,553 +112%
Citadel Advisors
109
Citadel Advisors
Florida
$77M -$275M -4,190,952 -78%
American Century Companies
110
American Century Companies
Missouri
$77M +$67.4M +1,027,353 +702%
JIC
111
Johnson Investment Counsel
Ohio
$76.6M -$2.2M -33,603 -3%
Allspring Global Investments
112
Allspring Global Investments
North Carolina
$74.5M -$819K -12,399 -1%
RAM
113
Resona Asset Management
Japan
$73.3M +$6.32M +95,983 +9%
Schroder Investment Management Group
114
Schroder Investment Management Group
United Kingdom
$73M -$54.8M -836,238 -43%
D.E. Shaw & Co
115
D.E. Shaw & Co
New York
$72.1M +$32.2M +491,651 +81%
KeyBank National Association
116
KeyBank National Association
Ohio
$72.1M -$24.3M -370,160 -25%
SEI Investments
117
SEI Investments
Pennsylvania
$71.5M +$12.8M +195,301 +22%
MPIA
118
Mountain Pacific Investment Advisers
Idaho
$71M -$1.14M -17,417 -2%
Manulife (Manufacturers Life Insurance)
119
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$70.9M -$22.7M -346,588 -24%
Canada Life
120
Canada Life
Manitoba, Canada
$69.8M +$6.97M +106,003 +11%
DekaBank Deutsche Girozentrale
121
DekaBank Deutsche Girozentrale
Germany
$68.9M -$1.06M -16,526 -2%
MDSL
122
M.D. Sass LLC
New York
$68.6M +$68.6M +1,045,366 New
BFS
123
Bradley Foster & Sargent
Connecticut
$68M -$517K -7,886 -0.8%
Victory Capital Management
124
Victory Capital Management
Texas
$67.9M -$6.53M -99,484 -9%
CPC
125
Cookson Peirce & Co
Pennsylvania
$67.4M -$725K -11,060 -1%
3 4
5
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