Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionSWS Partners
Latest Disclosed Ownership24,586 shares
Latest Disclosed Value $ 3,112,594
SWS Partners reports 1.62% increase in ownership of APH / Amphenol Corporation

On April 21, 2026 - SWS Partners filed a 13F-HR form disclosing ownership of 24,586 shares of Amphenol Corporation (US:APH) valued at $3,106,441 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 24,193 shares of Amphenol Corporation. This represents a change in shares of 1.62% during the quarter. The current value of the position is $3,629,385 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)
2026-04-21 2026-03-31 13F AMPHENOL CL A 032095101 24,586 393 1.62 3,113 -4.98 0.7677
2026-01-16 2025-12-31 13F AMPHENOL CORP CL A 032095101 24,193 -2,474 -9.28 3,276 -0.88 0.7907
2025-10-16 2025-09-30 13F AMPHENOL CORP CL A 032095101 26,667 717 2.76 3,304 28.76 0.8065
2025-07-17 2025-06-30 13F AMPHENOL CORP CL A 032095101 25,950 -537 -2.03 2,567 47.73 0.6926
2025-05-27 2025-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 26,487 648 2.51 1,737 -3.45 0.5702
2025-05-19 2025-03-31 13F AMPHENOL CORP CL A 032095101 25,839 0 1,799 0.5448
2025-02-06 2024-12-31 13F AMPHENOL CORP CL A 032095101 25,839 -1,253 -4.62 1,799 1.93 0.5448
2024-10-15 2024-09-30 13F AMPHENOL CORP CL A 032095101 27,092 27,092 1,765 0.5623
2020-05-14 2020-03-31 13F AMPHENOL CORP CL A 032095101 0 -2,175 -100.00 0 -100.00
2019-11-21 2019-09-30 13F/A-1 AMPHENOL CORP CL A 032095101 2,175 -234 -9.71 223 -3.88 0.1320
2019-11-15 2019-09-30 13F AMPHENOL CORP CL A 032095101 40,514 38,105 3,700 134,657.6856
2019-08-13 2019-06-30 13F AMPHENOL CORP CL A 032095101 2,409 2,409 232 0.1474
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.