Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionHartland & Co., LLC
Latest Disclosed Ownership17,698 shares
Latest Disclosed Value $ 2,236,187
Hartland & Co., LLC reports 6.12% decrease in ownership of APH / Amphenol Corporation

On May 6, 2026 - Hartland & Co., LLC filed a 13F-HR form disclosing ownership of 17,698 shares of Amphenol Corporation (US:APH) valued at $2,236,142 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 18,852 shares of Amphenol Corporation. This represents a change in shares of -6.12% during the quarter. The current value of the position is $2,456,659 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)
2026-05-06 2026-03-31 13F AMPHENOL CL A 032095101 17,698 -1,154 -6.12 2,236 -12.21 0.0204
2026-02-09 2025-12-31 13F AMPHENOL CORP CL A 032095101 18,852 -216 -1.13 2,548 7.97 0.0321
2025-11-10 2025-09-30 13F AMPHENOL CORP CL A 032095101 19,068 -2,404 -11.20 2,360 11.27 0.0310
2025-08-08 2025-06-30 13F AMPHENOL CORP CL A 032095101 21,472 1,933 9.89 2,120 65.50 0.0298
2025-05-13 2025-03-31 13F AMPHENOL CORP CL A 032095101 19,539 2,584 15.24 1,282 8.84 0.0199
2025-02-10 2024-12-31 13F AMPHENOL CORP CL A 032095101 16,955 -661 -3.75 1,178 2.62 0.0179
2024-11-13 2024-09-30 13F AMPHENOL CORP CL A 032095101 17,616 122 0.70 1,148 -2.63 0.0178
2024-08-12 2024-06-30 13F AMPHENOL CORP CL A 032095101 17,494 8,356 91.44 1,179 1.46 0.0201
2024-05-14 2024-03-31 13F AMPHENOL CORP CL A 032095101 9,138 222 2.49 1,162 31.48 0.0575
2024-02-12 2023-12-31 13F AMPHENOL CORP CL A 032095101 8,916 543 6.49 884 25.60 0.0469
2023-11-13 2023-09-30 13F/A-1 AMPHENOL CORP CL A 032095101 8,373 100 1.21 703 0.14 0.0432
2023-11-07 2023-09-30 13F AMPHENOL CORP CL A 032095101 8,829 556 742 0.0408
2023-08-07 2023-06-30 13F AMPHENOL CORP CL A 032095101 8,273 0 0.00 703 3.85 0.0426
2023-05-09 2023-03-31 13F AMPHENOL CORP CL A 032095101 8,273 946 12.91 676 21.36 0.0492
2023-02-14 2022-12-31 13F AMPHENOL CORP CL A 032095101 7,327 -331 -4.32 558 8.58 0.0437
2022-11-15 2022-09-30 13F AMPHENOL CORP CL A 032095101 7,658 -55 -0.71 513 3.22 0.0473
2022-08-12 2022-06-30 13F AMPHENOL CORP CL A 032095101 7,713 1 0.01 497 -14.46 0.0387
2022-05-04 2022-03-31 13F AMPHENOL CORP CL A 032095101 7,712 338 4.58 581 -9.92 0.0394
2022-02-14 2021-12-31 13F AMPHENOL CORP CL A 032095101 7,374 3,057 70.81 645 104.11 0.0439
2021-11-12 2021-09-30 13F AMPHENOL CORP CL A 032095101 4,317 288 7.15 316 14.49 0.0236
2021-08-12 2021-06-30 13F AMPHENOL CORP CL A 032095101 4,029 -28 -0.69 276 2.99 0.0212
2021-05-14 2021-03-31 13F AMPHENOL CORP CL A 032095101 4,057 2,128 110.32 268 6.35 0.0223
2021-02-11 2020-12-31 13F AMPHENOL CORP CL A 032095101 1,929 -88 -4.36 252 15.60 0.0229
2020-11-12 2020-09-30 13F AMPHENOL CORP CL A 032095101 2,017 101 5.27 218 18.48 0.0234
2020-08-11 2020-06-30 13F AMPHENOL CORP CL A 032095101 1,916 530 38.24 184 82.18 0.0213
2020-05-14 2020-03-31 13F AMPHENOL CORP CL A 032095101 1,386 1,386 101 0.0147
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.