Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionBeaton Management Co. Inc.
Latest Disclosed Ownership23,600 shares
Latest Disclosed Value $ 2,982
Beaton Management Co. Inc. ownership in APH / Amphenol Corporation

On May 12, 2026 - Beaton Management Co. Inc. filed a 13F-HR form disclosing ownership of 23,600 shares of Amphenol Corporation (US:APH) valued at $2,981,860 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 23,600 shares of Amphenol Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $3,483,832 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)
2026-05-12 2026-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 23,600 0 0.00 3 -33.33 1.3279
2026-02-10 2025-12-31 13F AMPHENOL CORP NEW CL A Common 032095101 23,600 0 0.00 3 50.00 1.4050
2025-11-12 2025-09-30 13F AMPHENOL CORP NEW CL A Common 032095101 23,600 0 0.00 3 0.00 1.3282
2025-08-12 2025-06-30 13F AMPHENOL CORP NEW CL A Common 032095101 23,600 0 0.00 2 100.00 1.1386
2025-04-25 2025-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 23,600 0 0.00 2 0.00 0.8035
2025-01-31 2024-12-31 13F AMPHENOL CORP NEW CL A Common 032095101 23,600 0 0.00 2 0.00 0.8263
2024-11-06 2024-09-30 13F AMPHENOL CORP NEW CL A Common 032095101 23,600 0 0.00 2 0.00 0.7780
2024-08-13 2024-06-30 13F AMPHENOL CORP NEW CL A Common 032095101 23,600 11,800 100.00 2 0.00 0.8549
2024-05-10 2024-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 11,800 300 2.61 1 0.00 0.7409
2024-02-09 2023-12-31 13F AMPHENOL CORP NEW CL A Common 032095101 11,500 185 1.63 1 0.6824
2023-11-03 2023-09-30 13F AMPHENOL CORP NEW CL A Common 032095101 11,315 15 0.13 1 0.6170
2023-07-21 2023-06-30 13F AMPHENOL CORP NEW CL A Common 032095101 11,300 0 0.00 1 0.6075
2023-05-12 2023-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 11,300 0 0.00 1 0.6230
2023-02-14 2022-12-31 13F AMPHENOL CORP NEW CL A Common 032095101 11,300 0 0.00 1 -100.00 0.5768
2022-11-14 2022-09-30 13F AMPHENOL CORP NEW CL A Common 032095101 11,300 0 0.00 757 4.13 0.5724
2022-08-12 2022-06-30 13F AMPHENOL CORP NEW CL A Common 032095101 11,300 -260 -2.25 727 -16.53 0.5156
2022-05-13 2022-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 11,560 0 0.00 871 -13.85 0.5377
2022-02-03 2021-12-31 13F AMPHENOL CORP NEW CL A Common 032095101 11,560 -100 -0.86 1,011 18.38 0.6032
2021-11-08 2021-09-30 13F AMPHENOL CORP NEW CL A Common 032095101 11,660 0 0.00 854 7.02 0.5648
2021-08-12 2021-06-30 13F AMPHENOL CORP NEW CL A Common 032095101 11,660 0 0.00 798 3.77 0.5075
2021-05-21 2021-03-31 13F/A-1 AMPHENOL CORP NEW CL A Common 032095101 11,660 5,830 100.00 769 0.92 0.5311
2021-05-14 2021-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 11,660 5,830 769 0.5363
2021-02-17 2020-12-31 13F AMPHENOL CORP NEW CL A Common 032095101 5,830 0 0.00 762 20.76 0.5626
2020-11-13 2020-09-30 13F AMPHENOL CORP NEW CL A Common 032095101 5,830 0 0.00 631 12.88 0.5205
2020-08-14 2020-06-30 13F AMPHENOL CORP NEW CL A Common 032095101 5,830 -100 -1.69 559 29.40 0.4982
2020-05-15 2020-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 5,930 0 0.00 432 -32.71 0.4326
2020-02-07 2019-12-31 13F AMPHENOL CORP NEW CL A Common 032095101 5,930 -100 -1.66 642 10.31 0.5036
2019-11-15 2019-09-30 13F AMPHENOL CORP NEW CL A Common 032095101 6,030 300 5.24 582 5.82 0.4716
2019-08-15 2019-06-30 13F AMPHENOL CORP NEW CL A Common 032095101 5,730 630 12.35 550 14.11 0.4562
2019-05-14 2019-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 5,100 0 0.00 482 16.71 0.4168
2019-02-14 2018-12-31 13F AMPHENOL CORP NEW CL A Common 032095101 5,100 -165 -3.13 413 -16.57 0.4054
2018-11-16 2018-09-30 13F AMPHENOL CORP NEW CL A Common 032095101 5,265 0 0.00 495 7.84 0.4087
2018-08-15 2018-06-30 13F AMPHENOL CORP NEW CL A Common 032095101 5,265 -185 -3.39 459 -2.13 0.4111
2018-05-15 2018-03-31 13F AMPHENOL CORP NEW CL A Common 032095101 5,450 0 0.00 469 -2.09 0.4337
2018-02-07 2017-12-31 13F AMPHENOL CORP NEW CL A Common 032095101 5,450 -200 -3.54 479 0.21 0.4321
2017-11-09 2017-09-30 13F AMPHENOL CORP NEW CL A Common 032095101 5,650 5,650 478 0.4505
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.