Institutional shares held 1.03 Billion
5.5M calls
4.3M puts
Total value of holdings $138B
$736M calls
$575M puts
Market Cap $79.6B
594,828,032 Shares Out.
Institutional ownership 173.57%
# of Institutions 2,022


Latest Institutional Activity in APH

Top Purchases

Q3 2025
Capital International Investors Shares Held: 18M ($2.41B)
Q3 2025
Capital Research Global Investors Shares Held: 15.5M ($2.08B)
Q3 2025
Arrowstreet Capital, Limited Partnership Shares Held: 7.28M ($974M)
Q3 2025
Winslow Capital Management, LLC Shares Held: 4.44M ($593M)
Q3 2025
Goldman Sachs Group Inc Shares Held: 12.2M ($1.63B)

Top Sells

Q3 2025
Vanguard Group Inc Shares Held: 125M ($16.7B)
Q3 2025
T. Rowe Price Investment Management, Inc. Shares Held: 12.2M ($1.63B)
Q3 2025
Cibc Bancorp Usa Inc. Shares Held: 168K ($22.5M)
Q3 2025
D. E. Shaw & Co., Inc. Shares Held: 2.05M ($274M)
Q3 2025
Alphinity Investment Management Pty LTD Shares Held: 3.56M ($476M)

About APH

Amphenol Corporation, together with its subsidiaries, primarily designs, manufactures, and markets electrical, electronic, and fiber optic connectors in the United States, China, and internationally. It operates through three segments: Harsh Environment Solutions, Communications Solutions, and Interconnect and Sensor Systems. The company offers connectors and connector systems, including harsh environment data, power, high-speed, fiber optic, and radio frequency interconnect products; busbars and power distribution systems; and other connectors. It also provides value-add products, such as backplane interconnect systems, cable assemblies and harnesses, and cable management products; other products comprising flexible and rigid printed circuit boards, hinges, other mechanical, and production related products. In addition, the company offers consumer device, network infrastructure, and other antennas; coaxial, power, and specialty cables; and sensors and sensor-based products. It sells its products through its sales force, independent representatives, and a network of electronics distributors to original equipment manufacturers, electronic manufacturing services companies, original design manufacturers, and service providers in the automotive, broadband communication, commercial aerospace, industrial, information technology and data communication, military, mobile device, and mobile network markets. Amphenol Corporation was founded in 1932 and is headquartered in Wallingford, Connecticut.


Insider Transactions at APH

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
6.75M Shares
From 18 Insiders
Bona fide gift 167K shares
Exercise of conversion of derivative security 6.57M shares
Grant, award, or other acquisition 16.5K shares
Sell / Disposition
6.87M Shares
From 14 Insiders
Bona fide gift 504K shares
Open market or private sale 6.36M shares

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