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Amphenol

1,797 hedge funds and large institutions have $140B invested in Amphenol in 2025 Q3 according to their latest regulatory filings, with 283 funds opening new positions, 707 increasing their positions, 607 reducing their positions, and 85 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more capital invested

Capital invested by funds: $ → $

more funds holding in top 10

Funds holding in top 10:

16% more repeat investments, than reductions

Existing positions increased: 707 | Existing positions reduced: 607

10% more funds holding

Funds holding: 1,6361,797 (+161)

3.57% less ownership

Funds ownership: 95.99%92.42% (-3.6%)

Holders
1,797
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
91
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$764M
Puts
$539M
Net Calls
Net Calls Change

Top Buyers

1 +$1.82B
2 +$993M
3 +$787M
4
BlackRock
BlackRock
New York
+$778M
5
Winslow Capital Management
Winslow Capital Management
Minnesota
+$548M

Top Sellers

1 -$1.89B
2 -$1.18B
3 -$1.09B
4
Bank of New York Mellon
Bank of New York Mellon
New York
-$529M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$299M
Name Holding Trade Value Shares
Change
Change in
Stake
WB
1601
Webster Bank
Connecticut
$149K
KSB
1602
Kennebec Savings Bank
Maine
$149K
FFO
1603
Fortitude Family Office
Arizona
$147K
WIM
1604
Westside Investment Management
California
$146K
AG
1605
AmeriFlex Group
Nevada
$146K
WA
1606
WPG Advisers
Maryland
$145K
LI
1607
LRI Investments
Florida
$142K
Optiver Holding
1608
Optiver Holding
Netherlands
$138K
TIM
1609
Thompson Investment Management
Wisconsin
$135K
CGA
1610
Compound Global Advisors
Washington
$135K
EPAM
1611
Evelyn Partners Asset Management
$131K
NECFA
1612
New England Capital Financial Advisors
Connecticut
$126K
KTC
1613
Kentucky Trust Company
Kentucky
$125K
CIAS
1614
CBIZ Investment Advisory Services
Ohio
$125K
AIM
1615
Arcadia Investment Management
Michigan
$124K
RS
1616
Rakuten Securities
Japan
$122K
BGAI
1617
Bruce G. Allen Investments
Colorado
$121K
WW
1618
Winnow Wealth
Texas
$120K
CHC
1619
City Holding Co
West Virginia
$119K
ME
1620
McIlrath & Eck
Washington
$116K
MAM
1621
Meeder Asset Management
Ohio
$113K
BI
1622
Binnacle Investments
Iowa
$110K
RA
1623
Rise Advisors
New York
$108K
HIIFS
1624
Harel Insurance Investments & Financial Services
Israel
$107K
CF
1625
Centaurus Financial
California
$106K