Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionBecker Capital Management Inc
Latest Disclosed Ownership21,701 shares
Latest Disclosed Value $ 2,747,350
Becker Capital Management Inc reports 0.05% decrease in ownership of APH / Amphenol Corporation

On May 11, 2026 - Becker Capital Management Inc filed a 13F-HR form disclosing ownership of 21,701 shares of Amphenol Corporation (US:APH) valued at $2,741,921 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 21,712 shares of Amphenol Corporation. This represents a change in shares of -0.05% during the quarter. The current value of the position is $3,203,502 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F AMPHENOL CL A 032095101 21,701 -11 -0.05 2,747 -6.53 0.0808
2026-02-13 2025-12-31 13F AMPHENOL CORP CL A 032095101 21,712 -1,289 -5.60 2,940 3.12 0.0841
2025-11-12 2025-09-30 13F AMPHENOL CORP CL A 032095101 23,001 0 0.00 2,850 25.27 0.0833
2025-08-14 2025-06-30 13F AMPHENOL CORP CL A 032095101 23,001 0 0.00 2,275 50.46 0.0709
2025-05-15 2025-03-31 13F AMPHENOL CORP CL A 032095101 23,001 908 4.11 1,512 -1.69 0.0498
2025-02-14 2024-12-31 13F AMPHENOL CORP CL A 032095101 22,093 0 0.00 1,538 6.58 0.0502
2024-11-08 2024-09-30 13F AMPHENOL CORP CL A 032095101 22,093 288 1.32 1,443 -1.90 0.0469
2024-08-13 2024-06-30 13F AMPHENOL CORP CL A 032095101 21,805 10,645 95.39 1,471 14.12 0.0505
2024-05-15 2024-03-31 13F AMPHENOL CORP CL A 032095101 11,160 0 0.00 1,290 16.34 0.0443
2024-02-14 2023-12-31 13F AMPHENOL CORP CL A 032095101 11,160 -241 -2.11 1,109 15.54 0.0400
2023-11-14 2023-09-30 13F AMPHENOL CORP CL A 032095101 11,401 241 2.16 960 1.16 0.0381
2023-08-14 2023-06-30 13F AMPHENOL CORP CL A 032095101 11,160 11,160 948 0.0359
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.