Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionUnion Heritage Capital, LLC
Latest Disclosed Ownership121,190 shares
Latest Disclosed Value $ 15,312,357
Union Heritage Capital, LLC reports 23.82% decrease in ownership of APH / Amphenol Corporation

On May 20, 2026 - Union Heritage Capital, LLC filed a 13F-HR form disclosing ownership of 121,190 shares of Amphenol Corporation (US:APH) valued at $15,312,356 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 159,090 shares of Amphenol Corporation. This represents a change in shares of -23.82% during the quarter. The current value of the position is $16,822,384 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)
2026-05-20 2026-03-31 13F AMPHENOL CORP NEW CL A Common Stock 032095101 121,190 -37,900 -23.82 15,312 -28.78 5.6877
2026-02-13 2025-12-31 13F AMPHENOL CORP CL A 032095101 159,090 -1,800 -1.12 21,499 7.98 7.2818
2025-10-30 2025-09-30 13F AMPHENOL CORP CL A 032095101 160,890 0 0.00 19,910 25.32 6.4577
2025-08-13 2025-06-30 13F AMPHENOL CORP CL A 032095101 160,890 0 0.00 15,888 50.56 5.5345
2025-05-12 2025-03-31 13F AMPHENOL CORP CL A 032095101 160,890 0 0.00 10,553 -5.56 3.9286
2025-04-03 2024-12-31 13F AMPHENOL CORP CL A 032095101 160,890 0 0.00 11,174 6.58 4.1274
2025-01-10 2024-09-30 13F AMPHENOL CORP CL A 032095101 160,890 0 0.00 10,484 -3.28 3.8680
2025-01-10 2024-06-30 13F AMPHENOL CORP CL A 032095101 160,890 80,445 100.00 10,839 16.81 4.2626
2025-01-08 2024-03-31 13F AMPHENOL CORP CL A 032095101 80,445 6,445 8.71 9,279 26.50 3.6799
2025-01-07 2023-12-31 13F AMPHENOL CORP NEW CL A Common Stock 032095101 74,000 0 0.00 7,336 18.02 3.8028
2025-01-06 2023-09-30 13F AMPHENOL CORP NEW CL A Common Stock 032095101 74,000 0 0.00 6,215 103,483.33 3.5241
2023-08-22 2023-06-30 13F AMPHENOL CORP NEW CL A Common Stock 032095101 74,000 0 0.00 6 0.00 3.4110
2023-05-16 2023-03-31 13F AMPHENOL CORP NEW CL A Common Stock 032095101 74,000 0 0.00 6 20.00 3.6823
2023-02-24 2022-12-31 13F/A-1 AMPHENOL CORP NEW CL A Common Stock 032095101 74,000 0 0.00 6 25.00 3.4462
2023-02-14 2022-12-31 13F AMPHENOL CORP NEW CL A Common Stock 032095101 74,000 0 6 3.4462
2023-02-24 2022-09-30 13F/A-1 AMPHENOL CORP NEW CL A Common Stock 032095101 74,000 0 0.00 5 -99.92 3.3007
2022-11-14 2022-09-30 13F AMPHENOL CORP NEW CL A Common Stock 032095101 74,000 0 4,970 3.3007
2022-08-15 2022-06-30 13F AMPHENOL CORP NEW CL A Common Stock 032095101 74,000 0 0.00 4,779 -14.29 3.0774
2022-04-26 2022-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 74,000 -6,000 -7.50 5,576 -20.31 3.0947
2022-02-11 2021-12-31 13F AMPHENOL CORP NEW CL A Stock 032095101 80,000 -4,620 -5.46 6,997 12.91 3.2769
2021-11-05 2021-09-30 13F AMPHENOL CORP NEW CL A Common 032095101 84,620 0 0.00 6,197 7.07 2.9056
2021-08-16 2021-06-30 13F AMPHENOL CORP NEW CL A Common 032095101 84,620 0 0.00 5,788 3.69 2.7016
2021-08-16 2021-03-31 13F/A-1 AMPHENOL CORP NEW CL A Common 032095101 84,620 84,620 5,582 2.7792
2021-05-17 2021-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 84,620 84,620 5,582,381 2.7790
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.