AMPHENOL CORP-CL A (APH) Stock Institutional Trading Activity


AMPHENOL CORP-CL A (APH) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Jensen Investment Management, Lone Pine Capital, Egerton Capital UK, Torray Fund, and Sequoia Financial Advisors. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2024Jensen Investment ManagementSell-390,3252,976,597$343,350,464
Q1 2024Renaissance Technologies LLCSell-28,562108,500$12,515
Q1 2024Sequoia Financial AdvisorsSell-4,5308,219$948,101
Q4 2023Torray FundBuy60561,722$6,118,502
Q4 2023Jensen Investment ManagementSell-79,1623,366,922$333,762,978
Q4 2023Sequoia Financial AdvisorsBuy5,00812,749$1,263,828
Q4 2023Joho CapitalBuy11,00039,240$3,889,861
Q3 2023Torray FundSell-3,58161,117$5,133,217
Q3 2023Jensen Investment ManagementSell-29,8353,446,084$289,436,595
Q3 2023Renaissance Technologies LLCBuy4,462137,062$11,512
Q3 2023Sequoia Financial AdvisorsBuy8117,741$650,179
Q2 2023Torray FundSell-1,30764,698$5,496,095
Q2 2023Jensen Investment ManagementBuy33,4433,475,919$295,279,319
Q2 2023Sequoia Financial AdvisorsSell-9846,930$588,711
Q1 2023Torray FundSell-1,94566,005$5,393,929
Q1 2023Jensen Investment ManagementSell-117,9543,442,476$277,670,114
Q1 2023Renaissance Technologies LLCSell-130,000132,600$10,836
Q1 2023Sequoia Financial AdvisorsBuy9987,914$646,735
Q1 2023Joho CapitalSell-15,90028,240$2,307,773
Q4 2022Torray FundSell-1,47567,950$5,173,713
Q4 2022Jensen Investment ManagementBuy668,6323,560,430$271,091,140
Q4 2022Renaissance Technologies LLCSell-601,900262,600$19,994
Q4 2022Sequoia Financial AdvisorsBuy2,9276,916$526,584
Q4 2022Joho CapitalSell-8,80044,140$3,360,820
Q3 2022Torray FundBuy2,32369,425$4,649
Q3 2022Sequoia Financial AdvisorsBuy2693,989$267
Q3 2022Renaissance Technologies LLCSell-1,357,600864,500$57,887
Q3 2022Jensen Investment ManagementBuy559,3152,891,798$193,635
Q2 2022Torray FundSell-81967,102$4,320
Q2 2022Jensen Investment ManagementBuy491,7112,332,483$150,165

Frequently asked questions about APH activity

  • Which institutional owners are buying APH?

    Institutional owners buying APH include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in APH activity?

    "Buy" means an investor increased their reported position in APH compared to the prior reporting period. This reflects growing exposure to AMPHENOL CORP-CL A (APH) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in APH increasing?

    Institutional interest in APH can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.