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Amphenol

1,812 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, 712 increasing their positions, 616 reducing their positions, and 87 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: 712 | Existing positions reduced: 616

10% more funds holding

Funds holding: 1,6401,812 (+172)

2.98% less ownership

Funds ownership: 96.13%93.15% (-3%)

Holders
1,812
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 +$1.82B
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
TPSF
1826
Texas Permanent School Fund
Texas
Temasek Holdings
1827
Temasek Holdings
Singapore
QC
1828
Quadrature Capital
United Kingdom
NG
1829
NWK Group
California
TI
1830
Trexquant Investment
Connecticut
BCM
1831
Bayesian Capital Management
New York
BIMC
1832
Benson Investment Management Company
Virginia
CCM
1833
CloudAlpha Capital Management
Hong Kong
BDLIB
1834
Banque de Luxembourg Investments (BLI)
Luxembourg
FRM
1835
Fox Run Management
Connecticut
WA
1836
Wasatch Advisors
Utah
CM
1837
Caption Management
Oklahoma
PF
1838
Phoenix Financial
Israel
PC
1839
Promus Capital
Illinois
KI
1840
Keystone Investors
Singapore
RL
1841
Retireful LLC
Michigan
PMAM
1842
Picton Mahoney Asset Management
Ontario, Canada
FIA
1843
FNY Investment Advisers
New York
SCM
1844
Stevens Capital Management
Pennsylvania
IC
1845
Iconiq Capital
California
Walleye Capital
1846
Walleye Capital
New York
QCM
1847
Qsemble Capital Management
New York
I
1848
InceptionR
California
SRL
1849
Scientech Research LLC
New Jersey
MF
1850
Magnetar Financial
Illinois