Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionSegment Wealth Management, LLC
Latest Disclosed Ownership150,178 shares
Latest Disclosed Value $ 18,975,023
Segment Wealth Management, LLC reports 0.72% increase in ownership of APH / Amphenol Corporation

On April 20, 2026 - Segment Wealth Management, LLC filed a 13F-HR form disclosing ownership of 150,178 shares of Amphenol Corporation (US:APH) valued at $18,974,990 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 149,106 shares of Amphenol Corporation. This represents a change in shares of 0.72% during the quarter. The current value of the position is $22,169,276 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)
2026-04-20 2026-03-31 13F AMPHENOL CL A 032095101 150,178 1,072 0.72 18,975 -5.83 1.1133
2026-01-29 2025-12-31 13F AMPHENOL CORP CL A 032095101 149,106 -319 -0.21 20,150 8.97 1.1686
2025-10-20 2025-09-30 13F AMPHENOL CORP CL A 032095101 149,425 458 0.31 18,491 25.70 1.1082
2025-07-21 2025-06-30 13F AMPHENOL CORP CL A 032095101 148,967 -2,904 -1.91 14,710 47.68 0.9336
2025-04-22 2025-03-31 13F AMPHENOL CORP CL A 032095101 151,871 536 0.35 9,961 -5.22 0.6739
2025-01-17 2024-12-31 13F AMPHENOL CORP CL A 032095101 151,335 507 0.34 10,510 6.95 0.7164
2024-10-22 2024-09-30 13F AMPHENOL CORP CL A 032095101 150,828 -116 -0.08 9,828 -3.36 0.6754
2024-07-23 2024-06-30 13F AMPHENOL CORP CL A 032095101 150,944 75,600 100.34 10,169 17.02 0.7502
2024-04-24 2024-03-31 13F AMPHENOL CORP CL A 032095101 75,344 1,914 2.61 8,691 19.38 0.6604
2024-01-26 2023-12-31 13F AMPHENOL CORP CL A 032095101 73,430 2,612 3.69 7,279 22.38 0.6429
2023-10-25 2023-09-30 13F AMPHENOL CORP CL A 032095101 70,818 1,770 2.56 5,948 1.42 0.6046
2023-08-22 2023-06-30 13F/A-1 AMPHENOL CORP CL A 032095101 69,048 -1,165 -1.66 5,866 2.23 0.6032
2023-07-21 2023-06-30 13F AMPHENOL CORP CL A 032095101 69,048 -1,165 5,866 0.6090
2023-04-20 2023-03-31 13F AMPHENOL CORP CL A 032095101 70,213 1,250 1.81 5,738 9.28 0.6491
2023-01-13 2022-12-31 13F AMPHENOL CORP CL A 032095101 68,963 -20 -0.03 5,251 13.66 0.6079
2022-10-24 2022-09-30 13F AMPHENOL CORP CL A 032095101 68,983 2,955 4.48 4,619 8.66 0.5767
2022-07-20 2022-06-30 13F AMPHENOL CORP CL A 032095101 66,028 6,532 10.98 4,251 -5.18 0.5396
2022-04-25 2022-03-31 13F AMPHENOL CORP CL A 032095101 59,496 4,485 8.15 4,483 -6.82 0.4620
2022-01-24 2021-12-31 13F AMPHENOL CORP CL A 032095101 55,011 -115 -0.21 4,811 19.17 0.5046
2021-10-19 2021-09-30 13F AMPHENOL CORP CL A 032095101 55,126 931 1.72 4,037 8.90 0.4791
2021-07-20 2021-06-30 13F AMPHENOL CORP CL A 032095101 54,195 2,333 4.50 3,707 8.36 0.4399
2021-05-10 2021-03-31 13F AMPHENOL CORP CL A 032095101 51,862 26,593 105.24 3,421 3.54 0.4537
2021-01-27 2020-12-31 13F AMPHENOL CORP CL A 032095101 25,269 -1,166 -4.41 3,304 15.44 0.4770
2020-10-27 2020-09-30 13F AMPHENOL CORP CL A 032095101 26,435 640 2.48 2,862 15.82 0.4648
2020-07-15 2020-06-30 13F AMPHENOL CORP CL A 032095101 25,795 560 2.22 2,471 34.37 0.4569
2020-04-24 2020-03-31 13F AMPHENOL CORP CL A 032095101 25,235 5,593 28.47 1,839 -13.50 0.4097
2020-01-23 2019-12-31 13F AMPHENOL CORP CL A 032095101 19,642 759 4.02 2,126 16.68 0.3590
2019-10-22 2019-09-30 13F AMPHENOL CORP CL A 032095101 18,883 829 4.59 1,822 5.20 0.3565
2019-07-29 2019-06-30 13F AMPHENOL CORP CL A 032095101 18,054 18,054 1,732 0.3523
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.