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Amphenol

1,826 hedge funds and large institutions have $141B invested in Amphenol in 2025 Q3 according to their latest regulatory filings, with 283 funds opening new positions, 721 increasing their positions, 621 reducing their positions, and 85 closing their positions.

New
Increased
Maintained
Reduced
Closed

233% more first-time investments, than exits

New positions opened: 283 | Existing positions closed: 85

42% more call options, than puts

Call options by funds: $764M | Put options by funds: $539M

23% more capital invested

Capital invested by funds: $115B → $141B (+$26.4B)

19% more funds holding in top 10

Funds holding in top 10: 7893 (+15)

16% more repeat investments, than reductions

Existing positions increased: 721 | Existing positions reduced: 621

11% more funds holding

Funds holding: 1,6461,826 (+180)

2.83% less ownership

Funds ownership: 96.18%93.35% (-2.8%)

Holders
1,826
Holders Change
+180
Holders Change %
+10.94%
% of All Funds
23.97%
Holding in Top 10
93
Holding in Top 10 Change
+15
Holding in Top 10 Change %
+19.23%
% of All Funds
1.22%
New
283
Increased
721
Reduced
621
Closed
85
Calls
$764M
Puts
$539M
Net Calls
+$225M
Net Calls Change
+$60.9M
Name Holding Trade Value Shares
Change
Change in
Stake
QCG
626
Quadrant Capital Group
Ohio
$5.21M +$84.3K +768 +2%
EF
627
Empirical Finance
Pennsylvania
$5.18M +$45.4K +414 +1%
PP
628
PDT Partners
New York
$5.17M -$870K -7,932 -16%
SC
629
SummitTX Capital
Texas
$5.13M +$3.51M +32,002 +338%
FFA
630
Farther Finance Advisors
California
$5.13M +$2.23M +20,328 +96%
S
631
SignatureFD
Georgia
$5.1M +$76K +693 +2%
WB
632
WesBanco Bank
West Virginia
$5.09M -$2.96K -27 -0.1%
MGP
633
Metis Global Partners
California
$5.08M -$240K -2,185 -5%
DSC
634
Duncker Streett & Co
Missouri
$5.07M -$306K -2,788 -6%
AF
635
Allworth Financial
California
$5.02M -$233K -2,121 -5%
CD
636
Chapin Davis
Maryland
$5.01M +$206K +1,879 +5%
MCWS
637
McKinley Carter Wealth Services
West Virginia
$4.99M +$4.43M +40,350 New
KPWS
638
Kestra Private Wealth Services
Texas
$4.93M +$459K +4,185 +12%
SSW
639
Stone Summit Wealth
Florida
$4.92M -$442K -4,031 -9%
MCM
640
MAI Capital Management
Ohio
$4.91M +$3.18M +28,940 +269%
FNBOO
641
First National Bank of Omaha
Nebraska
$4.91M -$1.49M -13,537 -25%
TFA
642
Transamerica Financial Advisors
Florida
$4.91M +$4.35M +39,637 New
HIS
643
Horizon Investment Services
Indiana
$4.88M +$3.19M +29,056 +280%
HCA
644
Harbour Capital Advisors
Virginia
$4.85M -$134K -1,221 -3%
NMIMC
645
Northwestern Mutual Investment Management Company
Wisconsin
$4.82M +$35.8K +326 +0.8%
DCM
646
Donaldson Capital Management
Indiana
$4.79M +$4.25M +38,720 New
PAM
647
Palisade Asset Management
Minnesota
$4.74M +$878 +8 +0%
Bessemer Group
648
Bessemer Group
New Jersey
$4.74M +$110K +1,000 +3%
ACM
649
Alamar Capital Management
California
$4.73M -$11K -100 -0.3%
HA
650
Herold Advisors
New York
$4.72M +$680K +6,200 +19%