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Amphenol

1,819 hedge funds and large institutions have $141B invested in Amphenol in 2025 Q3 according to their latest regulatory filings, with 282 funds opening new positions, 716 increasing their positions, 619 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: 716 | Existing positions reduced: 619

11% more funds holding

Funds holding: 1,6411,819 (+178)

2.89% less ownership

Funds ownership: 96.13%93.24% (-2.9%)

Holders
1,819
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
92
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 +$1.61B
2 +$880M
3 +$698M
4
BlackRock
BlackRock
New York
+$690M
5
Winslow Capital Management
Winslow Capital Management
Minnesota
+$486M

Top Sellers

1 -$1.68B
2 -$1.04B
3 -$971M
4
Bank of New York Mellon
Bank of New York Mellon
New York
-$469M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$265M
Name Holding Trade Value Shares
Change
Change in
Stake
IC
1851
Iconiq Capital
California
Walleye Capital
1852
Walleye Capital
New York
QCM
1853
Qsemble Capital Management
New York
I
1854
InceptionR
California
SRL
1855
Scientech Research LLC
New Jersey
MF
1856
Magnetar Financial
Illinois
FIM
1857
Freedom Investment Management
Connecticut
BPC
1858
Bryce Point Capital
New York
JGUA
1859
John G. Ullman & Associates
New York
FAIM
1860
Financial Advocates Investment Management
Washington
SCM
1861
SCS Capital Management
Massachusetts
AGM
1862
Alpine Global Management
New York
UAM
1863
UAS Asset Management
New York
HWP
1864
Hibernia Wealth Partners
Louisiana
EFI
1865
EHP Funds Inc
Canada
WMWM
1866
Whitaker-Myers Wealth Managers
Ohio
SIG
1867
Sargent Investment Group
Maryland
VI
1868
Versor Investments
New York
MPM
1869
MBB Public Markets
Illinois
TIA
1870
Trust Investment Advisors
Indiana
FWM
1871
FFT Wealth Management
Pennsylvania
IWA
1872
Inspirion Wealth Advisors
Illinois
DC
1873
Diametric Capital
Massachusetts
SGI
1874
Swan Global Investments
Colorado
WHG
1875
Westwood Holdings Group
Texas