Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionPlatform Technology Partners
Latest Disclosed Ownership4,247 shares
Latest Disclosed Value $ 536,608
Platform Technology Partners reports 13.20% decrease in ownership of APH / Amphenol Corporation

On April 27, 2026 - Platform Technology Partners filed a 13F-HR form disclosing ownership of 4,247 shares of Amphenol Corporation (US:APH) valued at $536,608 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,893 shares of Amphenol Corporation. This represents a change in shares of -13.20% during the quarter. The current value of the position is $626,942 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)
2026-04-27 2026-03-31 13F AMPHENOL CL A 032095101 4,247 -646 -13.20 537 -18.91 0.1034
2026-02-13 2025-12-31 13F AMPHENOL CORP CL A 032095101 4,893 68 1.41 661 10.72
2025-10-29 2025-09-30 13F AMPHENOL CORP CL A 032095101 4,825 1 0.02 597 25.42 0.1431
2025-08-11 2025-06-30 13F AMPHENOL CORP CL A 032095101 4,824 0 0.00 476 50.63 0.1244
2025-05-01 2025-03-31 13F AMPHENOL CORP CL A 032095101 4,824 36 0.75 316 -4.82 0.0921
2025-01-28 2024-12-31 13F AMPHENOL CORP CL A 032095101 4,788 0 0.00 333 6.75 0.1007
2024-11-04 2024-09-30 13F AMPHENOL CORP CL A 032095101 4,788 0 0.00 312 -3.42 0.0981
2024-07-30 2024-06-30 13F AMPHENOL CORP CL A 032095101 4,788 -3,539 -42.50 323 -63.16 0.1110
2024-02-13 2023-12-31 13F AMPHENOL CORP CL A 032095101 8,327 0 0.00 875 25.04 0.3399
2023-11-08 2023-09-30 13F AMPHENOL CORP CL A 032095101 8,327 -208 -2.44 699 -3.45 0.3273
2023-07-12 2023-06-30 13F AMPHENOL CORP CL A 032095101 8,535 -366 -4.11 724 -0.41 0.3409
2023-04-04 2023-03-31 13F AMPHENOL CORP CL A 032095101 8,901 0 0.00 727 7.39 0.3593
2023-01-11 2022-12-31 13F AMPHENOL CORP CL A 032095101 8,901 366 4.29 678 18.36 0.3502
2022-10-24 2022-09-30 13F AMPHENOL CORP CL A 032095101 8,535 0 0.00 572 4.19 0.3259
2022-08-04 2022-06-30 13F AMPHENOL CORP CL A 032095101 8,535 -255 -2.90 549 -17.07 0.2997
2022-05-03 2022-03-31 13F AMPHENOL CORP CL A 032095101 8,790 -21 -0.24 662 -14.14 0.3183
2022-02-01 2021-12-31 13F AMPHENOL CORP CL A 032095101 8,811 0 0.00 771 19.53 0.3388
2021-11-04 2021-09-30 13F AMPHENOL CORP CL A 032095101 8,811 0 0.00 645 6.97 0.2925
2021-08-05 2021-06-30 13F AMPHENOL CORP CL A 032095101 8,811 4,352 97.60 603 3.43 0.2484
2021-02-09 2020-12-31 13F AMPHENOL CORP CL A 032095101 4,459 321 7.76 583 30.13 0.2845
2020-11-30 2020-09-30 13F AMPHENOL CORP CL A 032095101 4,138 0 0.00 448 48.34 0.2745
2020-11-30 2020-06-30 13F AMPHENOL CORP CL A 032095101 4,138 0 0.00 302 0.00 0.2462
2020-11-30 2020-03-31 13F AMPHENOL CORP CL A 032095101 4,138 0 0.00 302 -32.59 0.2750
2020-12-03 2019-12-31 13F AMPHENOL CORP CL A 032095101 4,138 4,138 448 0.3379
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.