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Amphenol

2,094 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, 857 increasing their positions, 798 reducing their positions, and 146 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 (-$88.3B)

45% less call options, than puts

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

Holders
2,094
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
Fifth Third Bancorp
226
Fifth Third Bancorp
Ohio
$57.5M
Robeco Institutional Asset Management
227
Robeco Institutional Asset Management
Netherlands
$57.2M
RMA
228
Roffman Miller Associates
Pennsylvania
$56.3M
PCM
229
Palisade Capital Management
New Jersey
$56.2M
DnB Asset Management
230
DnB Asset Management
Norway
$54.5M
GAM
231
Guinness Asset Management
United Kingdom
$54M
CBUSF
232
Construction & Building Unions Superannuation Fund
Australia
$54M
CAG
233
Crestwood Advisors Group
Massachusetts
$53.6M
WCM
234
Wedge Capital Management
North Carolina
$53.4M
State of New Jersey Common Pension Fund D
235
State of New Jersey Common Pension Fund D
New Jersey
$53.2M
FMI
236
Factory Mutual Insurance
Massachusetts
$53.1M
State of Tennessee, Department of Treasury
237
State of Tennessee, Department of Treasury
Tennessee
$51.9M
Toronto Dominion Bank
238
Toronto Dominion Bank
Ontario, Canada
$51.6M
SBH
239
Segall Bryant & Hamill
Illinois
$51.3M
MTC
240
McDaniel Terry & Co
Texas
$50.9M
AIM
241
Avity Investment Management
Connecticut
$49.9M
ACM
242
Alta Capital Management
Utah
$49.8M
AHT
243
Amanah Holdings Trust
$48.4M
SCP
244
Sandhill Capital Partners
New York
$47.9M
CNAM
245
Campbell Newman Asset Management
Wisconsin
$47.2M
MPIA
246
Mountain Pacific Investment Advisers
Idaho
$47M
SOMRS
247
State of Michigan Retirement System
Michigan
$46.7M
CIBC Asset Management
248
CIBC Asset Management
Ontario, Canada
$46.7M
Brown Advisory
249
Brown Advisory
Maryland
$46.5M
CIS
250
Capital International Sarl
California
$46.4M