Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionEthic Inc.
Latest Disclosed Ownership99,998 shares
Latest Disclosed Value $ 12,634,717
Ethic Inc. reports 9.92% decrease in ownership of APH / Amphenol Corporation

On April 27, 2026 - Ethic Inc. filed a 13F-HR form disclosing ownership of 99,998 shares of Amphenol Corporation (US:APH) valued at $12,634,747 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 111,014 shares of Amphenol Corporation. This represents a change in shares of -9.92% during the quarter. The current value of the position is $14,761,705 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)
2026-04-27 2026-03-31 13F AMPHENOL CORP CL A CL A 032095101 99,998 -11,016 -9.92 12,635 -15.78 0.1979
2026-02-03 2025-12-31 13F AMPHENOL CORP CL A CL A 032095101 111,014 1,154 1.05 15,002 10.35 0.2307
2025-10-17 2025-09-30 13F AMPHENOL CORP CL A COM 032095101 109,860 1,474 1.36 13,595 28.42 0.2237
2025-07-30 2025-06-30 13F AMPHENOL CORP CL A COM 032095101 108,386 1,424 1.33 10,586 49.82 0.1896
2025-05-13 2025-03-31 13F AMPHENOL CORP CL A COM 032095101 106,962 9,921 10.22 7,067 4.85 0.1432
2025-02-14 2024-12-31 13F AMPHENOL CORP CL A COM 032095101 97,041 50,730 109.54 6,740 26.17 0.1360
2024-11-13 2024-09-30 13F AMPHENOL CORP CL A 032095101 46,311 -47,195 -50.47 5,342 -15.21 0.1350
2024-08-13 2024-06-30 13F AMPHENOL CORP CL A 032095101 93,506 47,195 101.91 6,300 17.94 0.1477
2024-05-13 2024-03-31 13F AMPHENOL CORP CL A 032095101 46,311 3,684 8.64 5,342 26.41 0.1350
2024-02-14 2023-12-31 13F AMPHENOL CORP CL A 032095101 42,627 10,536 32.83 4,226 56.77 0.1250
2023-11-14 2023-09-30 13F AMPHENOL CORP CL A 032095101 32,091 7,445 30.21 2,695 28.76 0.0946
2023-08-14 2023-06-30 13F AMPHENOL CORP CL A 032095101 24,646 -617 -2.44 2,094 1.41 0.0776
2023-05-12 2023-03-31 13F AMPHENOL CORP CL A 032095101 25,263 8,913 54.51 2,064 65.92 0.0838
2023-02-14 2022-12-31 13F AMPHENOL CORP CL A 032095101 16,350 3,674 28.98 1,245 46.53 0.0673
2022-11-14 2022-09-30 13F AMPHENOL CORP CL A 032095101 12,676 2,447 23.92 849 28.83 0.0576
2022-08-10 2022-06-30 13F AMPHENOL CORP CL A 032095101 10,229 2,069 25.36 659 7.15 0.0459
2022-05-16 2022-03-31 13F AMPHENOL CORP CL A 032095101 8,160 1,730 26.91 615 9.43 0.0425
2022-02-14 2021-12-31 13F AMPHENOL CORP CL A 032095101 6,430 563 9.60 562 30.70 0.0433
2021-11-15 2021-09-30 13F AMPHENOL CORP CL A 032095101 5,867 -345 -5.55 430 1.18 0.0440
2021-08-10 2021-06-30 13F AMPHENOL CORP CL A 032095101 6,212 160 2.64 425 6.52 0.0515
2021-05-13 2021-03-31 13F AMPHENOL CORP CL A 032095101 6,052 2,542 72.42 399 -13.07 0.0711
2021-02-10 2020-12-31 13F AMPHENOL CORP CL A 032095101 3,510 1,142 48.23 459 79.30 0.1213
2020-10-27 2020-09-30 13F AMPHENOL CORP CL A 032095101 2,368 2,368 256 0.0979
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.