安費諾公司
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionLyell Wealth Management, Lp
Latest Disclosed Ownership189,586 shares
Latest Disclosed Value $ 23,954,232
Lyell Wealth Management, Lp reports 0.19% decrease in ownership of APH / Amphenol Corporation

On May 7, 2026 - Lyell Wealth Management, Lp filed a 13F-HR form disclosing ownership of 189,586 shares of Amphenol Corporation (MX:APH) valued at $23,954,232 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 189,944 shares of Amphenol Corporation. This represents a change in shares of -0.19% during the quarter.

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)
2026-05-07 2026-03-31 13F AMPHENOL CORP CL A Stock 032095101 189,586 -358 -0.19 23,954 -6.68 1.7603
2026-02-11 2025-12-31 13F AMPHENOL CORP NEW CL A Stock 032095101 189,944 -5,331 -2.73 25,669 6.22 1.8587
2025-11-06 2025-09-30 13F AMPHENOL CORP NEW CL A Stock 032095101 195,275 -298 -0.15 24,165 25.13 1.7949
2025-07-29 2025-06-30 13F AMPHENOL CORP NEW CL A Stock 032095101 195,573 5,504 2.90 19,313 54.92 1.5254
2025-05-08 2025-03-31 13F AMPHENOL CORP NEW CL A Stock 032095101 190,069 22,012 13.10 12,467 6.81 1.1653
2025-02-03 2024-12-31 13F AMPHENOL CORP NEW CL A Stock 032095101 168,057 2,965 1.80 11,672 8.50 1.0462
2024-10-23 2024-09-30 13F AMPHENOL CORP NEW CL A Stock 032095101 165,092 3,093 1.91 10,757 -1.43 0.9781
2024-08-08 2024-06-30 13F AMPHENOL CORP NEW CL A Stock 032095101 161,999 82,840 104.65 10,914 19.53 1.0420
2024-05-03 2024-03-31 13F AMPHENOL CORP NEW CL A Stock 032095101 79,159 509 0.65 9,131 17.11 0.9284
2024-02-02 2023-12-31 13F AMPHENOL CORP NEW CL A Stock 032095101 78,650 -5,387 -6.41 7,797 10.46 0.8864
2023-10-31 2023-09-30 13F AMPHENOL CORP NEW CL A Stock 032095101 84,037 887 1.07 7,058 -0.07 0.9492
2023-08-04 2023-06-30 13F AMPHENOL CORP NEW CL A Stock 032095101 83,150 3,697 4.65 7,064 8.80 0.9028
2023-05-03 2023-03-31 13F AMPHENOL CORP NEW CL A Stock 032095101 79,453 3,599 4.74 6,493 12.42 0.9089
2023-01-24 2022-12-31 13F AMPHENOL CORP NEW CL A Stock 032095101 75,854 495 0.66 5,776 14.45 0.9122
2022-10-24 2022-09-30 13F AMPHENOL CORP NEW CL A Stock 032095101 75,359 -139 -0.18 5,046 3.49 0.8592
2022-07-28 2022-06-30 13F AMPHENOL CORP CL A 032095101 75,498 9,121 13.74 4,876 -2.77 0.7952
2022-05-04 2022-03-31 13F AMPHENOL CORP CL A 032095101 66,377 1,525 2.35 5,015 -11.79 0.6454
2022-02-08 2021-12-31 13F AMPHENOL CORP CL A 032095101 64,852 1,630 2.58 5,685 22.55 0.6489
2021-11-10 2021-09-30 13F AMPHENOL CORP CL A 032095101 63,222 18,501 41.37 4,639 51.35 0.5642
2021-08-09 2021-06-30 13F AMPHENOL CORP CL A 032095101 44,721 44,721 3,065 0.3794
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.