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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
Mariner
176
Mariner
Kansas
$85.3M
SCM
177
Snyder Capital Management
California
$84.3M
FAF
178
Fjarde Ap-fonden
Sweden
$83.9M
State of Wisconsin Investment Board
179
State of Wisconsin Investment Board
Wisconsin
$83.3M
T. Rowe Price Investment Management
180
T. Rowe Price Investment Management
Maryland
$82.8M
Rockefeller Capital Management
181
Rockefeller Capital Management
New York
$81.7M
Creative Planning
182
Creative Planning
Kansas
$81M
CTB
183
Country Trust Bank
Illinois
$79.6M
Pictet Asset Management
184
Pictet Asset Management
Switzerland
$79.5M
PCH
185
Polar Capital Holdings
United Kingdom
$79.1M
Macquarie Group
186
Macquarie Group
Australia
$78M
Tudor Investment Corp
187
Tudor Investment Corp
Connecticut
$77.6M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
188
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$77.6M
Chevy Chase Trust
189
Chevy Chase Trust
Maryland
$77.2M
US Bancorp
190
US Bancorp
Minnesota
$77M
BMSSC
191
B. Metzler seel. Sohn & Co
Germany
$76.2M
Fiera Capital (Canada)
192
Fiera Capital (Canada)
Quebec, Canada
$74.8M
Thrivent Financial for Lutherans
193
Thrivent Financial for Lutherans
Minnesota
$74.7M
Asset Management One
194
Asset Management One
Japan
$73.3M
Renaissance Technologies
195
Renaissance Technologies
New York
$72.5M
VIA
196
Vanguard Investments Australia
Australia
$72.2M
SO
197
STRS Ohio
Ohio
$71.8M
WP
198
Woodline Partners
California
$71.5M
ZIG
199
Zurich Insurance Group
Switzerland
$71.1M
LCIP
200
Life Cycle Investment Partners
$68.6M