Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionClarius Group, LLC
Latest Disclosed Ownership4,136 shares
Latest Disclosed Value $ 558,939
Clarius Group, LLC reports 1.87% decrease in ownership of APH / Amphenol Corporation

On January 14, 2026 - Clarius Group, LLC filed a 13F-HR form disclosing ownership of 4,136 shares of Amphenol Corporation (US:APH) valued at $558,939 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 14, 2025 disclosing 4,215 shares of Amphenol Corporation. This represents a change in shares of -1.87% during the quarter. The current value of the position is $610,556 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)
2026-01-14 2025-12-31 13F AMPHENOL CORP CL A 032095101 4,136 -79 -1.87 559 7.10 0.0319
2025-10-14 2025-09-30 13F AMPHENOL CORP CL A 032095101 4,215 -2,511 -37.33 522 -21.54 0.0309
2025-07-22 2025-06-30 13F AMPHENOL CORP CL A 032095101 6,726 -5,021 -42.74 664 -13.77 0.0387
2025-04-18 2025-03-31 13F AMPHENOL CORP CL A 032095101 11,747 1,228 11.67 770 5.48 0.0484
2025-01-16 2024-12-31 13F AMPHENOL CORP CL A 032095101 10,519 1,164 12.44 731 22.69 0.0499
2024-10-09 2024-09-30 13F AMPHENOL CORP CL A 032095101 9,355 68 0.73 596 -4.80 0.0418
2024-07-11 2024-06-30 13F AMPHENOL CORP CL A 032095101 9,287 4,442 91.68 626 12.01 0.0444
2024-04-17 2024-03-31 13F AMPHENOL CORP CL A 032095101 4,845 -995 -17.04 559 -3.46 0.0386
2024-01-29 2023-12-31 13F AMPHENOL CORP CL A 032095101 5,840 -81 -1.37 579 16.30 0.0480
2023-10-19 2023-09-30 13F AMPHENOL CORP CL A 032095101 5,921 -903 -13.23 497 -14.16 0.0474
2023-08-10 2023-06-30 13F AMPHENOL CORP CL A 032095101 6,824 -22 -0.32 580 3.58 0.0448
2023-04-17 2023-03-31 13F AMPHENOL CORP CL A 032095101 6,846 -324 -4.52 559 0.0475
2023-01-25 2022-12-31 13F AMPHENOL CORP CL A 032095101 7,170 6 0.08 1 -100.00 0.0492
2022-10-24 2022-09-30 13F AMPHENOL CORP CL A 032095101 7,164 400 5.91 480 10.34 0.0480
2022-08-10 2022-06-30 13F AMPHENOL CORP CL A 032095101 6,764 397 6.24 435 -21.90 0.0434
2022-04-08 2022-03-31 13F AMPHENOL CORP CL A 032095101 6,367 0 0.00 557 0.00 0.0441
2022-02-02 2021-12-31 13F AMPHENOL CORP CL A 032095101 6,367 366 6.10 557 26.88 0.0441
2021-10-18 2021-09-30 13F AMPHENOL CORP CL A 032095101 6,001 314 5.52 439 12.85 0.0393
2021-08-06 2021-06-30 13F AMPHENOL CORP CL A 032095101 5,687 99 1.77 389 5.42 0.0349
2021-04-27 2021-03-31 13F AMPHENOL CORP CL A 032095101 5,588 2,827 102.39 369 2.22 0.0362
2021-01-15 2020-12-31 13F AMPHENOL CORP CL A 032095101 2,761 724 35.54 361 63.35 0.0389
2020-10-09 2020-09-30 13F AMPHENOL CORP CL A 032095101 2,037 2,037 221 0.0284
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.