Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionHendley & Co Inc
Latest Disclosed Ownership129,326 shares
Latest Disclosed Value $ 16,340
Hendley & Co Inc reports 0.30% decrease in ownership of APH / Amphenol Corporation

On April 17, 2026 - Hendley & Co Inc filed a 13F-HR form disclosing ownership of 129,326 shares of Amphenol Corporation (US:APH) valued at $16,340,340 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 129,715 shares of Amphenol Corporation. This represents a change in shares of -0.30% during the quarter. The current value of the position is $19,091,104 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)
2026-04-17 2026-03-31 13F AMPHENOL CORPORATION CL A COM 032095101 129,326 -389 -0.30 16 -5.88 6.0452
2026-02-05 2025-12-31 13F AMPHENOL CORPORATION CL A COM 032095101 129,715 -30,035 -18.80 18 -10.53 6.2653
2025-11-13 2025-09-30 13F AMPHENOL CORPORATION CL A COM 032095101 159,750 3,417 2.19 20 26.67 6.5500
2025-07-23 2025-06-30 13F AMPHENOL CORPORATION CL A COM 032095101 156,333 -1,427 -0.90 15 50.00 5.3900
2025-04-29 2025-03-31 13F AMPHENOL CORP COM CL A COM 032095101 157,760 26,825 20.49 10 11.11 3.6172
2025-02-04 2024-12-31 13F AMPHENOL CORP COM CL A COM 032095101 130,935 -455 -0.35 9 12.50 3.1896
2024-10-31 2024-09-30 13F AMPHENOL CORP COM CL A COM 032095101 131,390 -1,140 -0.86 9 0.00 2.9845
2024-07-16 2024-06-30 13F AMPHENOL CORP COM CL A COM 032095101 132,530 81,260 158.49 9 60.00 3.2053
2024-05-02 2024-03-31 13F AMPHENOL CORP COM CL A COM 032095101 51,270 -150 -0.29 6 0.00 2.1148
2024-01-26 2023-12-31 13F AMPHENOL CORP COM CL A COM 032095101 51,420 -600 -1.15 5 25.00 1.9843
2023-10-25 2023-09-30 13F AMPHENOL CORP COM CL A COM 032095101 52,020 -86 -0.17 4 0.00 1.7606
2023-08-11 2023-06-30 13F AMPHENOL CORP COM CL A COM 032095101 52,106 -39 -0.07 4 0.00 1.8348
2023-04-24 2023-03-31 13F AMPHENOL CORP COM CL A COM 032095101 52,145 -950 -1.79 4 0.00 1.9095
2023-01-24 2022-12-31 13F AMPHENOL CORP COM CL A COM 032095101 53,095 -400 -0.75 4 -99.89 1.7970
2022-10-20 2022-09-30 13F AMPHENOL CORP COM CL A COM 032095101 53,495 -290 -0.54 3,582 3.44 1.6513
2022-07-28 2022-06-30 13F AMPHENOL CORP COM CL A COM 032095101 53,785 -565 -1.04 3,463 -15.43 1.4842
2022-04-29 2022-03-31 13F AMPHENOL CORP COM CL A COM 032095101 54,350 -1,725 -3.08 4,095 -16.50 1.3935
2022-02-02 2021-12-31 13F AMPHENOL CORP COM CL A COM 032095101 56,075 -45,765 -44.94 4,904 -34.25 1.6006
2021-10-27 2021-09-30 13F AMPHENOL CORP COM CL A COM 032095101 101,840 -240 -0.24 7,458 6.80 2.6055
2021-07-30 2021-06-30 13F AMPHENOL CORP COM CL A COM 032095101 102,080 80,020 362.74 6,983 379.93 2.3360
2021-04-22 2021-03-31 13F AMPHENOL CORP COM CL A COM 032095101 22,060 11,030 100.00 1,455 0.90 0.5062
2021-01-19 2020-12-31 13F AMPHENOL COM 032095101 11,030 -150 -1.34 1,442 19.17 0.5558
2020-10-21 2020-09-30 13F AMPHENOL COM 032095101 11,180 -1,625 -12.69 1,210 -1.39 0.5032
2020-08-12 2020-06-30 13F AMPHENOL COM 032095101 12,805 65 0.51 1,227 32.22 0.5797
2020-05-05 2020-03-31 13F AMPHENOL COM 032095101 12,740 -100 -0.78 928 -33.24 0.5210
2020-02-05 2019-12-31 13F AMPHENOL COM 032095101 12,840 -100 -0.77 1,390 11.29 0.6116
2019-10-15 2019-09-30 13F AMPHENOL COM 032095101 12,940 20 0.15 1,249 0.73 0.6030
2019-08-08 2019-06-30 13F AMPHENOL COM 032095101 12,920 12,920 1,240 0.5814
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.