Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionWebster Bank, N. A.
Latest Disclosed Ownership1,200 shares
Latest Disclosed Value $ 151,620
Webster Bank, N. A. ownership in APH / Amphenol Corporation

On April 17, 2026 - Webster Bank, N. A. filed a 13F-HR form disclosing ownership of 1,200 shares of Amphenol Corporation (US:APH) valued at $151,620 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 1,200 shares of Amphenol Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $177,144 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-17 2026-03-31 13F AMPHENOL CL A 032095101 1,200 0 0.00 152 -6.79 0.0144
2026-01-23 2025-12-31 13F AMPHENOL CORP CL A 032095101 1,200 0 0.00 162 9.46 0.0152
2025-10-23 2025-09-30 13F AMPHENOL CORP CL A 032095101 1,200 0 0.00 148 25.42 0.0143
2025-07-08 2025-06-30 13F AMPHENOL CORP CL A 032095101 1,200 0 0.00 118 51.28 0.0122
2025-04-04 2025-03-31 13F AMPHENOL CORP CL A 032095101 1,200 0 0.00 79 -6.02 0.0086
2025-01-22 2024-12-31 13F Amphenol CL A 032095101 1,200 0 0.00 83 6.41 0.0090
2024-10-10 2024-09-30 13F Amphenol CL A 032095101 1,200 -194 -13.92 78 -16.13 0.0083
2024-07-12 2024-06-30 13F Amphenol CL A 032095101 1,394 697 100.00 94 16.25 0.0103
2024-04-16 2024-03-31 13F Amphenol CL A 032095101 697 97 16.17 80 35.59 0.0090
2024-01-23 2023-12-31 13F Amphenol CL A 032095101 600 0 0.00 59 18.00 0.0073
2023-10-10 2023-09-30 13F Amphenol CL A 032095101 600 0 0.00 50 0.00 0.0068
2023-07-13 2023-06-30 13F Amphenol CL A 032095101 600 0 0.00 51 2.04 0.0066
2023-04-13 2023-03-31 13F Amphenol CL A 032095101 600 0 0.00 49 0.0064
2023-01-18 2022-12-31 13F Amphenol CL A 032095101 600 0 0.00 0 -100.00 0.0062
2022-10-24 2022-09-30 13F Amphenol CL A 032095101 600 0 0.00 40 2.56 0.0058
2022-07-12 2022-06-30 13F Amphenol CL A 032095101 600 0 0.00 39 -13.33 0.0053
2022-04-13 2022-03-31 13F Amphenol CL A 032095101 600 0 0.00 45 -13.46 0.0032
2022-01-12 2021-12-31 13F Amphenol CL A 032095101 600 0 0.00 52 18.18 0.0054
2021-10-12 2021-09-30 13F Amphenol CL A 032095101 600 0 0.00 44 7.32 0.0049
2021-07-20 2021-06-30 13F Amphenol CL A 032095101 600 0 0.00 41 2.50 0.0045
2021-05-07 2021-03-31 13F Amphenol CL A 032095101 600 300 100.00 40 2.56 0.0046
2021-01-07 2020-12-31 13F Amphenol CL A 032095101 300 0 0.00 39 21.88 0.0046
2020-10-22 2020-09-30 13F Amphenol CL A 032095101 300 0 0.00 32 10.34 0.0042
2020-07-09 2020-06-30 13F Amphenol CL A 032095101 300 0 0.00 29 31.82 0.0041
2020-04-21 2020-03-31 13F Amphenol CL A 032095101 300 -600 -66.67 22 -77.32 0.0037
2020-01-14 2019-12-31 13F Amphenol CL A 032095101 900 0 0.00 97 11.49 0.0124
2019-10-01 2019-09-30 13F Amphenol CL A 032095101 900 -200 -18.18 87 -17.92 0.0118
2019-07-11 2019-06-30 13F Amphenol CL A 032095101 1,100 0 0.00 106 1.92 0.0146
2019-04-10 2019-03-31 13F Amphenol CL A 032095101 1,100 -200 -15.38 104 -0.95 0.0149
2019-01-09 2018-12-31 13F Amphenol CL A 032095101 1,300 0 0.00 105 -13.93 0.0170
2018-10-12 2018-09-30 13F Amphenol CL A 032095101 1,300 0 0.00 122 7.96 0.0170
2018-07-12 2018-06-30 13F Amphenol CL A 032095101 1,300 0 0.00 113 0.89 0.0163
2018-04-19 2018-03-31 13F Amphenol CL A 032095101 1,300 0 0.00 112 -1.75 0.0162
2018-01-23 2017-12-31 13F Amphenol CL A 032095101 1,300 -300 -18.75 114 -15.56 0.0157
2017-10-12 2017-09-30 13F Amphenol CL A 032095101 1,600 0 0.00 135 14.41 0.0196
2017-07-12 2017-06-30 13F Amphenol CL A 032095101 1,600 0 0.00 118 3.51 0.0175
2017-05-01 2017-03-31 13F Amphenol CL A 032095101 1,600 0 0.00 114 5.56 0.0172
2017-02-15 2016-12-31 13F Amphenol CL A 032095101 1,600 1,600 108 0.0158
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.