Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionSymmetry Partners, LLC
Latest Disclosed Ownership2,621 shares
Latest Disclosed Value $ 331,180
Symmetry Partners, LLC reports 2.86% increase in ownership of APH / Amphenol Corporation

On April 27, 2026 - Symmetry Partners, LLC filed a 13F-HR form disclosing ownership of 2,621 shares of Amphenol Corporation (US:APH) valued at $331,163 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 2,548 shares of Amphenol Corporation. This represents a change in shares of 2.86% during the quarter. The current value of the position is $386,912 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 2,621 73 2.86 331 -3.78 0.0189
2026-01-27 2025-12-31 13F AMPHENOL CORP CL A 032095101 2,548 -14 -0.55 344 8.52 0.0204
2025-10-15 2025-09-30 13F AMPHENOL CORP CL A 032095101 2,562 2,562 317 0.0345
2024-10-29 2024-09-30 13F AMPHENOL CORP-CL A COM 032095101 0 -7,362 -100.00 0 0.0000
2024-07-11 2024-06-30 13F AMPHENOL CORP-CL A COM 032095101 7,362 3,681 100.00 0 0.0255
2024-04-02 2024-03-31 13F AMPHENOL CORP-CL A COM 032095101 3,681 0 0.00 0 0.0333
2024-01-02 2023-12-31 13F AMPHENOL CORP-CL A COM 032095101 3,681 -4,976 -57.48 0 0.0198
2023-10-10 2023-09-30 13F AMPHENOL CORP-CL A COM 032095101 8,657 0 0.00 1 0.0394
2023-07-05 2023-06-30 13F AMPHENOL CORP-CL A COM 032095101 8,657 -952 -9.91 1 0.0389
2023-04-03 2023-03-31 13F AMPHENOL CORP-CL A COM 032095101 9,609 453 4.95 1 -100.00 0.0433
2023-01-06 2022-12-31 13F AMPHENOL CORP-CL A COM 032095101 9,156 0 0.00 1 -100.00 0.0412
2022-10-03 2022-09-30 13F AMPHENOL CORP-CL A COM 032095101 9,156 0 0.00 613 4.07 0.0413
2022-07-11 2022-06-30 13F AMPHENOL CORP-CL A COM 032095101 9,156 0 0.00 589 -14.64 0.0396
2022-04-04 2022-03-31 13F AMPHENOL CORP-CL A COM 032095101 9,156 0 0.00 690 -13.86 0.0434
2022-01-11 2021-12-31 13F AMPHENOL CORP-CL A COM 032095101 9,156 0 0.00 801 17.28 0.0510
2021-10-18 2021-09-30 13F AMPHENOL CORP-CL A COM 032095101 9,156 0 0.00 683 9.11 0.0450
2021-07-07 2021-06-30 13F AMPHENOL CORP-CL A COM 032095101 9,156 0 0.00 626 3.64 0.0416
2021-05-03 2021-03-31 13F AMPHENOL CORP-CL A COM 032095101 9,156 4,578 100.00 604 0.83 0.0434
2021-02-18 2020-12-31 13F AMPHENOL CORP-CL A COM 032095101 4,578 0 0.00 599 20.77 0.0465
2020-11-03 2020-09-30 13F AMPHENOL CORP-CL A COM 032095101 4,578 4,578 496 0.0423
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.