Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionJames Hambro & Partners
Latest Disclosed Ownership1,420,385 shares
Latest Disclosed Value $ 179,472,746
James Hambro & Partners reports 9.19% decrease in ownership of APH / Amphenol Corporation

On April 22, 2026 - James Hambro & Partners filed a 13F-HR form disclosing ownership of 1,420,385 shares of Amphenol Corporation (US:APH) valued at $179,465,645 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 1,564,098 shares of Amphenol Corporation. This represents a change in shares of -9.19% during the quarter. The current value of the position is $209,677,234 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)
2026-04-22 2026-03-31 13F AMPHENOL CL A 032095101 1,420,385 -143,713 -9.19 179,473 -15.10 7.0365
2026-01-15 2025-12-31 13F AMPHENOL CORP CL A 032095101 1,564,098 -257,773 -14.15 211,396 -6.24 7.5527
2025-10-15 2025-09-30 13F AMPHENOL CORP CL A 032095101 1,821,871 -184,418 -9.19 225,466 13.83 8.0118
2025-07-17 2025-06-30 13F AMPHENOL CORP CL A 032095101 2,006,289 -46,477 -2.26 198,071 47.10 7.8343
2025-04-17 2025-03-31 13F AMPHENOL CORP CL A 032095101 2,052,766 102,875 5.28 134,651 -0.63 5.6164
2025-01-22 2024-12-31 13F AMPHENOL CORP CL A 032095101 1,949,891 -31,713 -1.60 135,508 4.97 5.3477
2024-10-21 2024-09-30 13F AMPHENOL CORP CL A 032095101 1,981,604 -40,792 -2.02 129,092 -5.26 5.3842
2024-07-16 2024-06-30 13F AMPHENOL CORP CL A 032095101 2,022,396 970,373 92.24 136,259 12.31 6.3325
2024-04-26 2024-03-31 13F AMPHENOL CORP CL A 032095101 1,052,023 4,283 0.41 121,325 16.77 5.6799
2024-01-19 2023-12-31 13F AMPHENOL CORP CL A 032095101 1,047,740 87,118 9.07 103,899 28.75 5.5314
2023-10-24 2023-09-30 13F AMPHENOL CORP CL A 032095101 960,622 16,596 1.76 80,702 0.65 5.2280
2023-07-20 2023-06-30 13F AMPHENOL CORP CL A 032095101 944,026 62,834 7.13 80,181 11.43 5.2891
2023-04-21 2023-03-31 13F AMPHENOL CORP CL A 032095101 881,192 15,728 1.82 71,958 9.19 5.2600
2023-02-02 2022-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 865,464 -3,702 -0.43 65,901 13.16 5.0323
2023-01-25 2022-12-31 13F AMPHENOL CORP CL A 032095101 865,464 -3,702 65,900 5,032.3552
2022-10-20 2022-09-30 13F AMPHENOL CORP CL A 032095101 869,166 -13,021 -1.48 58,238 2.52 5.0822
2022-07-22 2022-06-30 13F AMPHENOL CORP CL A 032095101 882,187 43,751 5.22 56,804 -10.11 4.7350
2022-05-05 2022-03-31 13F AMPHENOL CORP CL A 032095101 838,436 120,572 16.80 63,193 0.67 4.4847
2022-02-01 2021-12-31 13F AMPHENOL CORP CL A 032095101 717,864 74,460 11.57 62,771 33.23 4.2600
2021-11-05 2021-09-30 13F AMPHENOL CORP CL A 032095101 643,404 25,645 4.15 47,113 11.50 3.5151
2021-07-20 2021-06-30 13F AMPHENOL CORP CL A 032095101 617,759 44,785 7.82 42,252 11.67 3.3464
2021-04-28 2021-03-31 13F AMPHENOL CORP CL A 032095101 572,974 498,478 669.13 37,836 288.42 3.4968
2021-01-14 2020-12-31 13F AMPHENOL CORP CL A 032095101 74,496 12,550 20.26 9,741 45.30 1.0924
2020-10-13 2020-09-30 13F AMPHENOL CORP CL A 032095101 61,946 6,379 11.48 6,704 26.04 0.9455
2020-07-13 2020-06-30 13F AMPHENOL CORP CL A 032095101 55,567 2,765 5.24 5,319 38.41 0.8234
2020-04-16 2020-03-31 13F AMPHENOL CORP CL A 032095101 52,802 1,230 2.39 3,843 -31.13 0.7526
2020-02-04 2019-12-31 13F AMPHENOL CORP CL A 032095101 51,572 2,932 6.03 5,580 18.85 0.9463
2019-11-04 2019-09-30 13F AMPHENOL CORP CL A 032095101 48,640 -6,962 -12.52 4,695 -10.59 0.9708
2019-04-25 2019-03-31 13F AMPHENOL CORP CL A 032095101 55,602 2,906 5.51 5,251 23.03 1.5853
2019-01-17 2018-12-31 13F AMPHENOL CORP CL A 032095101 52,696 -164,239 -75.71 4,268 -79.08 1.7376
2018-10-18 2018-09-30 13F AMPHENOL CORP CL A 032095101 216,935 4,941 2.33 20,399 10.40 7.0923
2018-10-18 2018-06-30 13F/A-1 Amphenol CL A 032095101 211,994 -38,393 -15.33 18,477 -14.35 6.7467
2018-07-12 2018-06-30 13F Amphenol CL A 032095101 215,134 18,751
2020-02-04 2018-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 250,387 250,387 21,572 8.4741
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.