Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionFrank, Rimerman Advisors LLC
Latest Disclosed Ownership27,997 shares
Latest Disclosed Value $ 3,537,421
Frank, Rimerman Advisors LLC reports 1.46% decrease in ownership of APH / Amphenol Corporation

On April 29, 2026 - Frank, Rimerman Advisors LLC filed a 13F-HR form disclosing ownership of 27,997 shares of Amphenol Corporation (US:APH) valued at $3,537,421 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 28,412 shares of Amphenol Corporation. This represents a change in shares of -1.46% during the quarter. The current value of the position is $3,886,264 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)
2026-04-29 2026-03-31 13F AMPHENOL CL A 032095101 27,997 -415 -1.46 3,537 -7.87 0.2320
2026-01-15 2025-12-31 13F AMPHENOL CORP CL A 032095101 28,412 2,940 11.54 3,840 21.80 0.2434
2025-11-04 2025-09-30 13F AMPHENOL CORP CL A 032095101 25,472 121 0.48 3,152 25.93 0.2022
2025-08-11 2025-06-30 13F AMPHENOL CORP CL A 032095101 25,351 -878 -3.35 2,503 45.52 0.1682
2025-05-12 2025-03-31 13F AMPHENOL CORP CL A 032095101 26,229 10,178 63.41 1,720 54.40 0.1364
2025-02-10 2024-12-31 13F AMPHENOL CORP CL A 032095101 16,051 3,849 31.54 1,115 40.13 0.0809
2024-10-24 2024-09-30 13F AMPHENOL CORP CL A 032095101 12,202 -2,257 -15.61 795 -18.38 0.0564
2024-08-13 2024-06-30 13F AMPHENOL CORP CL A 032095101 14,459 14,441 80,227.78 974 48,600.00 0.0690
2024-05-09 2024-03-31 13F AMPHENOL CORP CL A 032095101 18 0 0.00 2 100.00 0.0004
2024-02-13 2023-12-31 13F AMPHENOL CORP CL A 032095101 18 18 2 0.0004
2023-05-15 2023-03-31 13F AMPHENOL CORP CL A 032095101 0 0 0 0.0000
2023-09-07 2022-06-30 13F AMPHENOL CORP CL A 032095101 0 -11,756 -100.00 0 -100.00
2023-09-07 2022-03-31 13F AMPHENOL CORP CL A 032095101 11,756 0 0.00 886 -13.91 0.2837
2023-09-07 2021-12-31 13F AMPHENOL CORP CL A 032095101 11,756 1,527 14.93 1,028 37.25 0.3449
2023-09-07 2021-09-30 13F AMPHENOL CORP CL A 032095101 10,229 10,229 749 0.2894
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.