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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
NAAA
551
New Age Alpha Advisors
New York
$7.53M
GIBU
552
Gulf International Bank (UK)
United Kingdom
$7.51M
MSRPS
553
Maryland State Retirement & Pension System
Maryland
$7.44M
DIA
554
Dana Investment Advisors
Wisconsin
$7.39M
LF
555
Longbow Finance
Switzerland
$7.35M
HFM
556
Harvest Fund Management
China
$7.29M
SAM
557
Securian Asset Management
Minnesota
$7.29M
JFGIW
558
Johnson Financial Group Inc (Wisconsin)
Wisconsin
$7.21M
QC
559
Quantessence Capital
New York
$7.21M
KWM
560
Keebeck Wealth Management
Illinois
$7.07M
MIP
561
Marietta Investment Partners
Wisconsin
$7.02M
AC
562
Asio Capital
Kentucky
$6.97M
IG
563
Ithaka Group
Virginia
$6.94M
Parallax Volatility Advisers
564
Parallax Volatility Advisers
California
$6.93M
AWM
565
Axxcess Wealth Management
California
$6.91M
CCA
566
Catalyst Capital Advisors
New York
$6.91M
BST
567
Bath Savings Trust
Maine
$6.91M
SWM
568
Spire Wealth Management
Virginia
$6.9M
OC
569
Oppenheimer & Co
New York
$6.9M
WG
570
Watchman Group
Texas
$6.9M
BPWM
571
Badgley Phelps Wealth Managers
Washington
$6.81M
GT
572
Greenleaf Trust
Michigan
$6.78M
VI
573
Vestcor Inc
New Brunswick, Canada
$6.77M
NMERB
574
New Mexico Educational Retirement Board
New Mexico
$6.76M
GCM
575
Genus Capital Management
British Columbia, Canada
$6.63M