암페놀 주식회사
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionStephens Inc /ar/
Latest Disclosed Ownership246,384 shares
Latest Disclosed Value $ 31,130,565
Stephens Inc /ar/ reports 1.39% decrease in ownership of APH / Amphenol Corporation

On April 28, 2026 - Stephens Inc /ar/ filed a 13F-HR form disclosing ownership of 246,384 shares of Amphenol Corporation (US:APH) valued at $31,130,618 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 249,845 shares of Amphenol Corporation. This represents a change in shares of -1.39% during the quarter. The current value of the position is $36,161,780 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)
2026-04-28 2026-03-31 13F AMPHENOL CL A 032095101 246,384 -3,461 -1.39 31,131 -7.80 0.3894
2026-02-05 2025-12-31 13F AMPHENOL CORP CL A 032095101 249,845 -31,002 -11.04 33,764 -2.85 0.4201
2025-10-27 2025-09-30 13F AMPHENOL CORP CL A 032095101 280,847 -20,871 -6.92 34,755 16.65 0.4430
2025-07-29 2025-06-30 13F AMPHENOL CORP CL A 032095101 301,718 -17,114 -5.37 29,795 42.47 0.4095
2025-05-01 2025-03-31 13F AMPHENOL CORP CL A 032095101 318,832 20,633 6.92 20,912 0.98 0.3065
2025-01-28 2024-12-31 13F AMPHENOL CORP CL A 032095101 298,199 -9,169 -2.98 20,710 3.40 0.2904
2024-10-28 2024-09-30 13F AMPHENOL CORP CL A 032095101 307,368 24,146 8.53 20,028 4.97 0.2841
2024-08-06 2024-06-30 13F AMPHENOL CORP CL A 032095101 283,222 133,175 88.76 19,081 10.24 0.2911
2024-05-15 2024-03-31 13F AMPHENOL CORP CL A 032095101 150,047 -5,330 -3.43 17,308 12.37 0.2684
2024-02-13 2023-12-31 13F AMPHENOL CORP CL A 032095101 155,377 -11,500 -6.89 15,403 9.90 0.2657
2023-11-14 2023-09-30 13F AMPHENOL CORP CL A 032095101 166,877 -12,058 -6.74 14,016 -7.80 0.2687
2023-08-14 2023-06-30 13F AMPHENOL CORP CL A 032095101 178,935 -1,649 -0.91 15,200 3.00 0.2735
2023-05-15 2023-03-31 13F AMPHENOL CORP CL A 032095101 180,584 6,851 3.94 14,757 11.56 0.2831
2023-02-14 2022-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 173,733 40,774 30.67 13,228 48.58 0.2710
2023-01-25 2022-12-31 13F AMPHENOL CORP L A 032095101 173,733 40,774 13 0.2710
2022-11-02 2022-09-30 13F AMPHENOL CORP L A 032095101 132,959 79,127 146.99 8,903 156.87 0.1901
2022-08-03 2022-06-30 13F AMPHENOL CORP L A 032095101 53,832 17,414 47.82 3,466 26.31 0.0699
2022-05-04 2022-03-31 13F AMPHENOL CORP L A 032095101 36,418 -8,797 -19.46 2,744 -30.60 0.0447
2022-03-07 2021-12-31 13F AMPHENOL CORP L A 032095101 45,215 -1,958 -4.15 3,954 14.44 0.0598
2021-10-27 2021-09-30 13F AMPHENOL CORP CL A 032095101 47,173 -4,361 -8.46 3,455 -1.99 0.0534
2021-08-12 2021-06-30 13F AMPHENOL CORP CL A 032095101 51,534 -3,531 -6.41 3,525 -2.97 0.0528
2021-05-14 2021-03-31 13F AMPHENOL CORP CL A 032095101 55,065 9,283 20.28 3,633 -39.32 0.0597
2021-02-10 2020-12-31 13F AMPHENOL CORP CL A 032095101 45,782 -189 -0.41 5,987 20.29 0.1074
2020-11-13 2020-09-30 13F AMPHENOL CORP CL A 032095101 45,971 -1,019 -2.17 4,977 10.55 0.0980
2020-08-24 2020-06-30 13F AMPHENOL CORP CL A 032095101 46,990 7,212 18.13 4,502 55.29 0.0968
2020-05-14 2020-03-31 13F AMPHENOL CORP CL A 032095101 39,778 13 0.03 2,899 -32.64 0.0772
2020-02-14 2019-12-31 13F AMPHENOL CORP CL A 032095101 39,765 -820 -2.02 4,304 9.91 0.0902
2019-10-18 2019-09-30 13F AMPHENOL CORP CL A 032095101 40,585 -6,008 -12.89 3,916 -12.39 0.0862
2019-08-01 2019-06-30 13F AMPHENOL CORP CL A 032095101 46,593 -418 -0.89 4,470 0.68 0.1012
2019-05-03 2019-03-31 13F AMPHENOL CORP CL A 032095101 47,011 -2,399 -4.86 4,440 10.92 0.1053
2019-02-11 2018-12-31 13F AMPHENOL CORP CL A 032095101 49,410 -1,593 -3.12 4,003 -16.52 0.1136
2018-11-14 2018-09-30 13F AMPHENOL CORP CL A 032095101 51,003 -17,747 -25.81 4,795 -19.98 0.1193
2018-08-10 2018-06-30 13F AMPHENOL CORP CL A 032095101 68,750 4,522 7.04 5,992 8.32 0.1811
2018-05-03 2018-03-31 13F AMPHENOL CORP CL A 032095101 64,228 -9,007 -12.30 5,532 -13.97 0.2063
2018-02-05 2017-12-31 13F AMPHENOL CORP CL A 032095101 73,235 -14,149 -16.19 6,430 -13.06 0.2405
2017-11-08 2017-09-30 13F AMPHENOL CORP CL A 032095101 87,384 -546 -0.62 7,396 13.94 0.2671
2017-08-10 2017-06-30 13F AMPHENOL CORP CL A 032095101 87,930 -10,203 -10.40 6,491 -7.06 0.2227
2017-05-11 2017-03-31 13F AMPHENOL CORP CL A 032095101 98,133 207 0.21 6,984 6.12 0.2539
2017-02-09 2016-12-31 13F AMPHENOL CORP CL A 032095101 97,926 -1,121 -1.13 6,581 2.35 0.2683
2016-11-30 2016-09-30 13F/A-2 AMPHENOL CORP CL A 032095101 99,047 -6,746 -6.38 6,430 6.02 0.2815
2016-11-10 2016-09-30 13F AMPHENOL CORP CL A 032095101 99,047 6,430
2016-08-05 2016-06-30 13F AMPHENOL CORP CL A 032095101 105,793 1,756 1.69 6,065 0.83 0.2705
2016-05-05 2016-03-31 13F AMPHENOL CORP CL A 032095101 104,037 -452 -0.43 6,015 10.23 0.2944
2016-02-10 2015-12-31 13F AMPHENOL CORP CL A 032095101 104,489 6,944 7.12 5,457 9.78 0.2737
2015-11-03 2015-09-30 13F AMPHENOL CORP CL A 032095101 97,545 -4,245 -4.17 4,971 -15.76 0.2589
2015-07-29 2015-06-30 13F AMPHENOL CORP CL A 032095101 101,790 -19,370 -15.99 5,901 -17.35 0.2677
2015-05-06 2015-03-31 13F AMPHENOL CORP CL A 032095101 121,160 1,076 0.90 7,140 10.49 0.3253
2015-02-12 2014-12-31 13F AMPHENOL CORP CL A 032095101 120,084 62,388 108.13 6,462 12.15 0.3058
2014-11-14 2014-09-30 13F AMPHENOL CORP CL A 032095101 57,696 1,744 3.12 5,762 6.90 0.2850
2014-08-15 2014-06-30 13F AMPHENOL CORP CL A 032095101 55,952 -1,240 -2.17 5,390 2.82 0.2715
2014-05-13 2014-03-31 13F AMPHENOL CORP CL A 032095101 57,192 1,960 3.55 5,242 6.41 0.2857
2014-02-14 2013-12-31 13F AMPHENOL CORP CL A 032095101 55,232 241 0.44 4,926 15.77 0.2444
2013-11-06 2013-09-30 13F AMPHENOL CORP CL A 032095101 54,991 2,298 4.36 4,255 3.60 0.2293
2013-08-12 2013-06-30 13F AMPHENOL CORP CL A 032095101 52,693 52,693 4,107 0.2293
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.