Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionWesbanco Bank Inc
Latest Disclosed Ownership40,375 shares
Latest Disclosed Value $ 5,101,384
Wesbanco Bank Inc reports 1.02% decrease in ownership of APH / Amphenol Corporation

On April 21, 2026 - Wesbanco Bank Inc filed a 13F-HR form disclosing ownership of 40,375 shares of Amphenol Corporation (US:APH) valued at $5,101,381 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 40,791 shares of Amphenol Corporation. This represents a change in shares of -1.02% during the quarter. The current value of the position is $5,604,454 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 COMMON STOCK 032095101 40,375 -416 -1.02 5,101 -7.46 0.0686
2026-02-03 2025-12-31 13F AMPHENOL COMMON STOCK 032095101 40,791 -376 -0.91 5,512 8.21 0.1518
2025-11-06 2025-09-30 13F AMPHENOL COMMON STOCK 032095101 41,167 -27 -0.07 5,094 25.25 0.1417
2025-07-07 2025-06-30 13F AMPHENOL COMMON STOCK 032095101 41,194 -300 -0.72 4,068 49.47 0.1207
2025-04-14 2025-03-31 13F AMPHENOL COMMON STOCK 032095101 41,494 -81 -0.19 2,722 -5.75 0.0945
2025-01-17 2024-12-31 13F AMPHENOL COMMON STOCK 032095101 41,575 -1,925 -4.43 2,887 1.87 0.0986
2024-10-11 2024-09-30 13F AMPHENOL COMMON STOCK 032095101 43,500 -560 -1.27 2,834 -4.51 0.0962
2024-07-11 2024-06-30 13F AMPHENOL COMMON STOCK 032095101 44,060 18,075 69.56 2,968 -0.97 0.1108
2024-04-23 2024-03-31 13F AMPHENOL COMMON STOCK 032095101 25,985 1,355 5.50 2,997 22.78 0.1131
2024-02-16 2023-12-31 13F AMPHENOL COMMON STOCK 032095101 24,630 -3,680 -13.00 2,442 2.69 0.1383
2023-12-11 2023-09-30 13F AMPHENOL COMMON STOCK 032095101 28,310 -76 -0.27 2,378 118,750.00 0.1037
2023-07-13 2023-06-30 13F AMPHENOL COMMON STOCK 032095101 28,386 -441 -1.53 2 0.00 0.1014
2023-04-21 2023-03-31 13F AMPHENOL COMMON STOCK 032095101 28,827 -505 -1.72 2 0.00 0.1021
2023-01-18 2022-12-31 13F AMPHENOL COMMON STOCK 032095101 29,332 3,685 14.37 2 -99.88 0.0997
2022-10-13 2022-09-30 13F AMPHENOL COMMON STOCK 032095101 25,647 -3,000 -10.47 1,717 -6.94 0.1160
2022-07-18 2022-06-30 13F AMPHENOL COMMON STOCK 032095101 28,647 -367 -1.26 1,845 -15.64 0.0814
2022-04-25 2022-03-31 13F AMPHENOL COMMON STOCK 032095101 29,014 330 1.15 2,187 -12.83 0.0828
2022-02-02 2021-12-31 13F AMPHENOL COMMON STOCK 032095101 28,684 0 0.00 2,509 19.42 0.0904
2021-10-12 2021-09-30 13F AMPHENOL COMMON STOCK 032095101 28,684 -400 -1.38 2,101 5.63 0.0806
2021-08-09 2021-06-30 13F AMPHENOL COMMON STOCK 032095101 29,084 -124 -0.42 1,989 3.22 0.0741
2021-05-06 2021-03-31 13F AMPHENOL COMMON STOCK 032095101 29,208 14,189 94.47 1,927 18.51 0.0762
2020-11-13 2020-09-30 13F AMPHENOL COMMON STOCK 032095101 15,019 -723 -4.59 1,626 7.82 0.0753
2020-07-14 2020-06-30 13F AMPHENOL COMMON STOCK 032095101 15,742 -70 -0.44 1,508 30.90 0.0742
2020-05-12 2020-03-31 13F AMPHENOL COMMON STOCK 032095101 15,812 -21,210 -57.29 1,152 -71.25 0.0668
2020-02-13 2019-12-31 13F AMPHENOL COMMON STOCK 032095101 37,022 1,100 3.06 4,007 15.61 0.1831
2019-11-07 2019-09-30 13F AMPHENOL COMMON STOCK 032095101 35,922 59 0.16 3,466 0.73 0.1723
2019-08-13 2019-06-30 13F AMPHENOL COMMON STOCK 032095101 35,863 -300 -0.83 3,441 0.76 0.1678
2019-05-09 2019-03-31 13F AMPHENOL COMMON STOCK 032095101 36,163 1,866 5.44 3,415 22.89 0.1704
2019-02-05 2018-12-31 13F AMPHENOL COMMON STOCK 032095101 34,297 -2,398 -6.53 2,779 -19.45 0.1654
2018-11-09 2018-09-30 13F AMPHENOL COMMON STOCK 032095101 36,695 -273 -0.74 3,450 7.08 0.1702
2018-08-08 2018-06-30 13F AMPHENOL COMMON STOCK 032095101 36,968 1,769 5.03 3,222 6.27 0.1667
2018-05-18 2018-03-31 13F AMPHENOL COMMON STOCK 032095101 35,199 270 0.77 3,032 -1.14 0.1548
2018-02-01 2017-12-31 13F AMPHENOL COMMON STOCK 032095101 34,929 -9,043 -20.57 3,067 -17.58 0.2078
2017-11-02 2017-09-30 13F AMPHENOL COMMON STOCK 032095101 43,972 -325 -0.73 3,721 13.79 0.1940
2017-08-08 2017-06-30 13F AMPHENOL COMMON STOCK 032095101 44,297 -61 -0.14 3,270 3.58 0.1781
2017-04-27 2017-03-31 13F AMPHENOL COMMON STOCK 032095101 44,358 -920 -2.03 3,157 3.75 0.1750
2017-02-02 2016-12-31 13F AMPHENOL COMMON STOCK 032095101 45,278 -4,580 -9.19 3,043 -5.99 0.1737
2016-11-09 2016-09-30 13F AMPHENOL COMMON STOCK 032095101 49,858 0 0.00 3,237 13.26 0.1912
2016-08-09 2016-06-30 13F AMPHENOL COMMON STOCK 032095101 49,858 37,721 310.79 2,858 307.12 0.1703
2016-05-12 2016-03-31 13F AMPHENOL COMMON STOCK 032095101 12,137 -30,023 -71.21 702 -68.12 0.0417
2016-02-04 2015-12-31 13F AMPHENOL COMMON STOCK 032095101 42,160 -350 -0.82 2,202 1.66 0.1302
2015-11-03 2015-09-30 13F AMPHENOL COMMON STOCK 032095101 42,510 0 0.00 2,166 -12.09 0.1313
2015-08-05 2015-06-30 13F AMPHENOL COMMON STOCK 032095101 42,510 200 0.47 2,464 -1.20 0.1371
2015-05-04 2015-03-31 13F AMPHENOL COMMON STOCK 032095101 42,310 42,310 0.00 2,494 0.1376
2015-02-03 2014-12-31 13F AMPHENOL COMMON STOCK 032095101 0 -6,025 -100.00 0 -100.00
2014-11-06 2014-09-30 13F AMPHENOL COMMON STOCK 032095101 6,025 200 3.43 601 7.13 0.0338
2014-07-14 2014-06-30 13F AMPHENOL COMMON STOCK 032095101 5,825 50 0.87 561 6.05 0.0313
2014-05-02 2014-03-31 13F AMPHENOL COMMON STOCK 032095101 5,775 0 0.00 529 2.72 0.0301
2014-02-03 2013-12-31 13F AMPHENOL COMMON STOCK 032095101 5,775 -235 -3.91 515 10.75 0.0293
2013-11-05 2013-09-30 13F AMPHENOL COMMON STOCK 032095101 6,010 -100 -1.64 465 -2.31 0.0288
2013-08-14 2013-06-30 13F AMPHENOL COMMON STOCK 032095101 6,110 6,110 476 0.0311
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.