Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionEP Wealth Advisors, Inc.
Latest Disclosed Ownership243,114 shares
Latest Disclosed Value $ 30,717,443
EP Wealth Advisors, Inc. reports 0.44% decrease in ownership of APH / Amphenol Corporation

On May 14, 2026 - EP Wealth Advisors, Inc. filed a 13F-HR form disclosing ownership of 243,114 shares of Amphenol Corporation (US:APH) valued at $30,717,454 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 244,194 shares of Amphenol Corporation. This represents a change in shares of -0.44% during the quarter. The current value of the position is $35,888,489 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)
2026-05-14 2026-03-31 13F AMPHENOL CL A 032095101 243,114 -1,080 -0.44 30,717 -6.92 0.1509
2026-02-18 2025-12-31 13F AMPHENOL CORP CL A 032095101 244,194 -7,430 -2.95 33,000 32.81 0.1715
2025-08-14 2025-06-30 13F AMPHENOL CORP CL A 032095101 251,624 237,677 1,704.14 24,848 2,618.49 0.1633
2025-05-15 2025-03-31 13F AMPHENOL CORP CL A 032095101 13,947 547 4.08 915 -1.72 0.0073
2025-02-14 2024-12-31 13F AMPHENOL CORP CL A 032095101 13,400 2,311 20.84 931 28.81 0.0076
2024-11-15 2024-09-30 13F AMPHENOL CORP CL A 032095101 11,089 7,084 176.88 723 168.40 0.0062
2024-08-19 2024-06-30 13F AMPHENOL CORP CL A 032095101 4,005 -1,850 -31.60 270 -60.15 0.0029
2024-05-14 2024-03-31 13F AMPHENOL CORP CL A 032095101 5,855 -933 -13.74 675 0.45 0.0079
2024-02-28 2023-12-31 13F AMPHENOL CORP CL A 032095101 6,788 -981 -12.63 673 3.07 0.0086
2023-11-24 2023-09-30 13F AMPHENOL CORP CL A 032095101 7,769 2,235 40.39 653 17.69 0.0101
2023-08-14 2023-06-30 13F AMPHENOL CORP CL A 032095101 5,534 0 0.00 554 22.57 0.0080
2023-06-05 2023-03-31 13F AMPHENOL CORP CL A 032095101 5,534 5,534 452 0.0078
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.