Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionMcdaniel Terry & Co
Latest Disclosed Ownership402,891 shares
Latest Disclosed Value $ 50,905,328
Mcdaniel Terry & Co reports 3.96% increase in ownership of APH / Amphenol Corporation

On May 5, 2026 - Mcdaniel Terry & Co filed a 13F-HR form disclosing ownership of 402,891 shares of Amphenol Corporation (US:APH) valued at $50,905,278 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 387,528 shares of Amphenol Corporation. This represents a change in shares of 3.96% during the quarter. The current value of the position is $59,474,769 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)
2026-05-05 2026-03-31 13F Amphenol Stock 032095101 402,891 15,363 3.96 50,905 -2.80 4.3244
2026-02-10 2025-12-31 13F Amphenol Stock 032095101 387,528 -18,339 -4.52 52,371 4.27 4.5599
2025-10-22 2025-09-30 13F Amphenol Stock 032095101 405,867 -2,335 -0.57 50,226 24.60 4.0432
2025-07-31 2025-06-30 13F Amphenol Stock 032095101 408,202 -1,257 -0.31 40,310 154,934.62 3.3001
2025-04-24 2025-03-31 13F Amphenol COM 032095101 409,459 -2,512 -0.61 27 -7.14 2.3497
2025-02-03 2024-12-31 13F Amphenol COM 032095101 411,971 1,950 0.48 29 7.69 2.3456
2024-10-23 2024-09-30 13F Amphenol COM 032095101 410,021 4,717 1.16 27 -3.70 2.2373
2024-08-05 2024-06-30 13F Amphenol COM 032095101 405,304 207,978 105.40 27 22.73 2.3833
2024-04-29 2024-03-31 13F Amphenol COM 032095101 197,326 -1,742 -0.88 23 15.79 2.0242
2024-01-24 2023-12-31 13F Amphenol COM 032095101 199,068 1,236 0.62 20 18.75 1.8877
2023-10-23 2023-09-30 13F Amphenol COM 032095101 197,832 4,128 2.13 17 0.00 1.7306
2023-07-21 2023-06-30 13F Amphenol COM 032095101 193,704 4,280 2.26 16 6.67 1.6742
2023-05-05 2023-03-31 13F Amphenol COM 032095101 189,424 566 0.30 15 7.14 1.6866
2023-01-23 2022-12-31 13F Amphenol COM 032095101 188,858 -1,583 -0.83 14 -99.89 1.6721
2022-10-06 2022-09-30 13F Amphenol COM 032095101 190,441 6,037 3.27 12,752 7.41 1.6518
2022-07-28 2022-06-30 13F Amphenol COM 032095101 184,404 21,252 13.03 11,872 -3.43 1.4655
2022-04-27 2022-03-31 13F Amphenol COM 032095101 163,152 99,230 155.24 12,294 119.89 1.3287
2022-01-20 2021-12-31 13F Amphenol COM 032095101 63,922 63,922 5,591 0.5599
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.