Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionPinnacle Bancorp, Inc.
Latest Disclosed Ownership4,116 shares
Latest Disclosed Value $ 520,057
Pinnacle Bancorp, Inc. reports 10.91% increase in ownership of APH / Amphenol Corporation

On April 22, 2026 - Pinnacle Bancorp, Inc. filed a 13F-HR form disclosing ownership of 4,116 shares of Amphenol Corporation (US:APH) valued at $520,057 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 3,711 shares of Amphenol Corporation. This represents a change in shares of 10.91% during the quarter. The current value of the position is $607,604 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 Corp New Cl A CL A 032095101 4,116 405 10.91 520 3.79 0.1535
2026-01-22 2025-12-31 13F Amphenol Corp New Cl A CL A 032095101 3,711 78 2.15 502 11.58 0.1470
2025-10-24 2025-09-30 13F Amphenol Corp New Cl A CL A 032095101 3,633 239 7.04 450 34.03 0.1328
2025-07-11 2025-06-30 13F Amphenol Corp New Cl A CL A 032095101 3,394 0 0.00 335 50.90 0.1034
2025-04-23 2025-03-31 13F Amphenol Corp New Cl A CL A 032095101 3,394 0 0.00 223 -5.53 0.0726
2025-01-14 2024-12-31 13F Amphenol Corp New Cl A CL A 032095101 3,394 -160 -4.50 236 1.73 0.0767
2024-10-09 2024-09-30 13F Amphenol Corp New Cl A CL A 032095101 3,554 0 0.00 232 -3.35 0.0619
2024-07-15 2024-06-30 13F Amphenol Corp New Cl A CL A 032095101 3,554 1,554 77.70 239 3.91 0.0707
2024-04-16 2024-03-31 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 231 16.16 0.0682
2024-01-25 2023-12-31 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 198 18.56 0.0649
2023-10-18 2023-09-30 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 168 -1.18 0.0597
2023-07-14 2023-06-30 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 170 3.68 0.0581
2023-04-14 2023-03-31 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 163 0.0600
2023-01-24 2022-12-31 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 0 -100.00 0.0585
2022-10-25 2022-09-30 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 134 3.88 0.0579
2022-07-12 2022-06-30 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 129 -14.57 0.0531
2022-04-14 2022-03-31 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 151 -13.71 0.0524
2022-01-19 2021-12-31 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 175 19.86 0.0619
2021-10-12 2021-09-30 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 146 6.57 0.0584
2021-07-15 2021-06-30 13F Amphenol Corp New Cl A CL A 032095101 2,000 0 0.00 137 3.79 0.0625
2021-04-26 2021-03-31 13F Amphenol Corp New Cl A CL A 032095101 2,000 788 65.02 132 -16.46 0.0640
2021-01-13 2020-12-31 13F Amphenol Corp New Cl A CL A 032095101 1,212 0 0.00 158 20.61 0.0973
2020-10-13 2020-09-30 13F Amphenol Corp New Cl A CL A 032095101 1,212 -50 -3.96 131 8.26 0.0923
2020-07-07 2020-06-30 13F Amphenol Corp New Cl A CL A 032095101 1,262 0 0.00 121 31.52 0.0900
2020-04-09 2020-03-31 13F Amphenol Corp New Cl A CL A 032095101 1,262 0 0.00 92 -32.85 0.0786
2020-01-10 2019-12-31 13F Amphenol Corp New Cl A CL A 032095101 1,262 -37 -2.85 137 9.60 0.0949
2019-10-08 2019-09-30 13F Amphenol Corp New Cl A CL A 032095101 1,299 37 2.93 125 3.31 0.0714
2019-07-08 2019-06-30 13F Amphenol Corp New Cl A CL A 032095101 1,262 0 0.00 121 1.68 0.0680
2019-04-05 2019-03-31 13F Amphenol Corp New Cl A CL A 032095101 1,262 0 0.00 119 16.67 0.0690
2019-03-20 2018-12-31 13F Amphenol Corp New Cl A CL A 032095101 1,262 -450 -26.29 102 -16.39 0.0627
2017-04-17 2017-03-31 13F Amphenol Corp New Cl A CL A 032095101 1,712 1,712 122 0.0863
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.