Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionAvenue 1 Advisors, LLC
Latest Disclosed Ownership7,423 shares
Latest Disclosed Value $ 937,896
Avenue 1 Advisors, LLC reports 0.12% decrease in ownership of APH / Amphenol Corporation

On April 9, 2026 - Avenue 1 Advisors, LLC filed a 13F-HR form disclosing ownership of 7,423 shares of Amphenol Corporation (US:APH) valued at $937,896 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 7,432 shares of Amphenol Corporation. This represents a change in shares of -0.12% during the quarter. The current value of the position is $1,030,387 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)
2026-04-09 2026-03-31 13F AMPHENOL CL A 032095101 7,423 -9 -0.12 938 -6.67 0.2876
2026-01-27 2025-12-31 13F AMPHENOL CORP CL A 032095101 7,432 -115 -1.52 1,004 7.61 0.3082
2025-10-15 2025-09-30 13F AMPHENOL CORP CL A 032095101 7,547 -47 -0.62 934 24.57 0.2948
2025-07-07 2025-06-30 13F AMPHENOL CORP CL A 032095101 7,594 -102 -1.33 750 48.61 0.2579
2025-04-08 2025-03-31 13F AMPHENOL CORP CL A 032095101 7,696 -74 -0.95 505 -6.49 0.1964
2025-01-15 2024-12-31 13F AMPHENOL CORP CL A 032095101 7,770 -28 -0.36 540 6.10 0.2065
2024-11-06 2024-09-30 13F AMPHENOL CORP CL A 032095101 7,798 0 0.00 508 -3.24 0.1906
2024-07-18 2024-06-30 13F AMPHENOL CORP CL A 032095101 7,798 3,834 96.72 525 14.88 0.2128
2024-04-19 2024-03-31 13F AMPHENOL CORP CL A 032095101 3,964 -8 -0.20 457 16.28 0.1874
2024-01-10 2023-12-31 13F AMPHENOL CORP CL A 032095101 3,972 48 1.22 394 19.45 0.1765
2023-10-13 2023-09-30 13F AMPHENOL CORP CL A 032095101 3,924 0 0.00 330 -1.20 0.1605
2023-07-13 2023-06-30 13F AMPHENOL CORP CL A 032095101 3,924 231 6.26 333 10.63 0.1573
2023-04-13 2023-03-31 13F AMPHENOL CORP CL A 032095101 3,693 0 0.00 302 7.12 0.1610
2023-01-17 2022-12-31 13F AMPHENOL CORP CL A 032095101 3,693 0 0.00 281 13.77 0.1661
2022-10-12 2022-09-30 13F AMPHENOL CORP CL A 032095101 3,693 0 0.00 247 3.78 0.1580
2022-07-18 2022-06-30 13F AMPHENOL CORP CL A 032095101 3,693 7 0.19 238 -14.39 0.1463
2022-04-18 2022-03-31 13F AMPHENOL CORP CL A 032095101 3,686 -13 -0.35 278 -14.20 0.1538
2022-01-13 2021-12-31 13F AMPHENOL CORP CL A 032095101 3,699 0 0.00 324 19.56 0.1701
2021-10-13 2021-09-30 13F AMPHENOL CORP CL A 032095101 3,699 59 1.62 271 8.84 0.1537
2021-07-14 2021-06-30 13F AMPHENOL CORP CL A 032095101 3,640 0 0.00 249 3.75 0.1449
2021-04-28 2021-03-31 13F AMPHENOL CORP CL A 032095101 3,640 1,753 92.90 240 -2.83 0.1518
2021-02-08 2020-12-31 13F AMPHENOL CORP CL A 032095101 1,887 1,887 247 0.1666
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.