암페놀 주식회사
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionSmartleaf Asset Management LLC
Latest Disclosed Ownership21,373 shares
Latest Disclosed Value $ 2,546,627
Smartleaf Asset Management LLC reports 10.97% increase in ownership of APH / Amphenol Corporation

On May 15, 2026 - Smartleaf Asset Management LLC filed a 13F-HR form disclosing ownership of 21,373 shares of Amphenol Corporation (MX:APH) valued at $2,546,627 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 19,260 shares of Amphenol Corporation. This represents a change in shares of 10.97% 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)
2026-05-15 2026-03-31 13F AMPHENOL CL A 032095101 21,373 2,113 10.97 2,547 -2.94 0.0920
2026-02-13 2025-12-31 13F AMPHENOL CORP CL A 032095101 19,260 1,551 8.76 2,623 22.40 0.0994
2025-11-05 2025-09-30 13F AMPHENOL CORP CL A 032095101 17,709 4,758 36.74 2,143 69.54 0.1326
2025-08-14 2025-06-30 13F AMPHENOL CORP CL A 032095101 12,951 -2,973 -18.67 1,265 19.25 0.1115
2025-05-14 2025-03-31 13F AMPHENOL CORP CL A 032095101 15,924 5 0.03 1,060 -4.16 0.1023
2025-02-05 2024-12-31 13F AMPHENOL CORP CL A 032095101 15,919 1,757 12.41 1,106 20.22 0.1128
2024-11-13 2024-09-30 13F AMPHENOL CORP CL A 032095101 14,162 3,074 27.72 921 22.99 0.1118
2024-10-08 2024-06-30 13F/A-1 AMPHENOL CORP CL A 032095101 11,088 6,338 133.43 748 36.75 0.1226
2024-08-13 2024-06-30 13F AMPHENOL CORP CL A 032095101 11,088 6,338 748 0.1226
2024-10-07 2024-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 4,750 1,820 62.12 548 87.97 0.1059
2024-05-03 2024-03-31 13F AMPHENOL CORP CL A 032095101 4,750 1,820 341 0.0821
2024-02-12 2023-12-31 13F AMPHENOL CORP CL A 032095101 2,930 2,930 291 0.0779
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.