Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionSignaturefd, Llc
Latest Disclosed Ownership41,076 shares
Latest Disclosed Value $ 5,190,012
Signaturefd, Llc reports 2.24% decrease in ownership of APH / Amphenol Corporation

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 41,076 shares of Amphenol Corporation (US:APH) valued at $5,189,953 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 42,018 shares of Amphenol Corporation. This represents a change in shares of -2.24% during the quarter. The current value of the position is $6,063,639 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)
2026-04-07 2026-03-31 13F AMPHENOL CORP CL A 032095101 41,076 -942 -2.24 5,190 -8.59 0.0795
2026-01-20 2025-12-31 13F AMPHENOL CORP CL A 032095101 42,018 807 1.96 5,678 11.36 0.0867
2025-10-21 2025-09-30 13F AMPHENOL CORP CL A 032095101 41,211 693 1.71 5,100 27.44 0.0804
2025-07-16 2025-06-30 13F AMPHENOL CORP CL A 032095101 40,518 5,174 14.64 4,001 72.61 0.0682
2025-05-02 2025-03-31 13F AMPHENOL CORP CL A 032095101 35,344 2,474 7.53 2,318 1.58 0.0439
2025-02-10 2024-12-31 13F AMPHENOL CORP CL A 032095101 32,870 -233 -0.70 2,283 5.84 0.0432
2024-10-21 2024-09-30 13F AMPHENOL CORP CL A 032095101 33,103 288 0.88 2,157 -2.44 0.0411
2024-07-29 2024-06-30 13F AMPHENOL CORP CL A 032095101 32,815 16,887 106.02 2,211 20.30 0.0449
2024-05-03 2024-03-31 13F AMPHENOL CORP CL A 032095101 15,928 654 4.28 1,837 21.33 0.0388
2024-02-01 2023-12-31 13F AMPHENOL CORP CL A 032095101 15,274 502 3.40 1,514 22.10 0.0350
2023-11-03 2023-09-30 13F AMPHENOL CORP CL A 032095101 14,772 528 3.71 1,241 2.48 0.0323
2023-08-01 2023-06-30 13F AMPHENOL CORP CL A 032095101 14,244 -1,462 -9.31 1,210 -5.69 0.0309
2023-04-28 2023-03-31 13F AMPHENOL CORP CL A 032095101 15,706 -297 -1.86 1,283 5.34 0.0350
2023-01-30 2022-12-31 13F AMPHENOL CORP CL A 032095101 16,003 2,736 20.62 1,218 37.16 0.0356
2022-11-08 2022-09-30 13F AMPHENOL CORP CL A 032095101 13,267 1,327 11.11 888 15.47 0.0304
2022-08-10 2022-06-30 13F AMPHENOL CORP CL A 032095101 11,940 -180 -1.49 769 -15.77 0.0262
2022-05-02 2022-03-31 13F AMPHENOL CORP CL A 032095101 12,120 956 8.56 913 -6.45 0.0275
2022-01-25 2021-12-31 13F AMPHENOL CORP CL A 032095101 11,164 908 8.85 976 29.96 0.0300
2021-10-28 2021-09-30 13F AMPHENOL CORP CL A 032095101 10,256 705 7.38 751 15.01 0.0259
2021-07-26 2021-06-30 13F AMPHENOL CORP CL A 032095101 9,551 464 5.11 653 9.02 0.0260
2021-04-30 2021-03-31 13F AMPHENOL CORP CL A 032095101 9,087 5,143 130.40 599 16.09 0.0265
2021-02-11 2020-12-31 13F AMPHENOL CORP CL A 032095101 3,944 822 26.33 516 52.66 0.0243
2020-11-03 2020-09-30 13F AMPHENOL CORP CL A 032095101 3,122 -24 -0.76 338 12.29 0.0181
2020-07-30 2020-06-30 13F AMPHENOL CORP CL A 032095101 3,146 159 5.32 301 38.07 0.0182
2020-04-23 2020-03-31 13F AMPHENOL CORP CL A 032095101 2,987 237 8.62 218 -26.85 0.0188
2020-02-05 2019-12-31 13F AMPHENOL CORP CL A 032095101 2,750 407 17.37 298 31.86 0.0220
2019-10-16 2019-09-30 13F AMPHENOL CORP CL A 032095101 2,343 -46 -1.93 226 -1.31 0.0186
2019-07-31 2019-06-30 13F AMPHENOL CORP CL A 032095101 2,389 73 3.15 229 4.57 0.0198
2019-05-09 2019-03-31 13F AMPHENOL CORP CL A 032095101 2,316 200 9.45 219 28.07 0.0186
2019-02-13 2018-12-31 13F AMPHENOL CORP CL A 032095101 2,116 -542 -20.39 171 -31.60 0.0159
2018-11-14 2018-09-30 13F AMPHENOL CORP CL A 032095101 2,658 57 2.19 250 10.13 0.0254
2018-08-14 2018-06-30 13F AMPHENOL CORP CL A 032095101 2,601 27 1.05 227 2.25 0.0253
2018-05-08 2018-03-31 13F AMPHENOL CORP CL A 032095101 2,574 2,574 222 0.0260
2017-02-14 2016-12-31 13F AMPHENOL CORP CL A 032095101 0 -696 -100.00 0 -100.00
2016-11-14 2016-09-30 13F AMPHENOL CORP CL A 032095101 696 72 11.54 45 25.00 0.0066
2016-07-29 2016-06-30 13F AMPHENOL CORP CL A 032095101 624 -149 -19.28 36 -20.00 0.0053
2016-05-12 2016-03-31 13F AMPHENOL CORP CL A 032095101 773 212 37.79 45 55.17 0.0077
2016-01-22 2015-12-31 13F AMPHENOL CORP CL A 032095101 561 360 179.10 29 190.00 0.0056
2015-10-23 2015-09-30 13F AMPHENOL CORP CL A 032095101 201 104 107.22 10 66.67 0.0023
2015-07-15 2015-06-30 13F AMPHENOL CORP CL A 032095101 97 -12 -11.01 6 0.00 0.0013
2015-04-15 2015-03-31 13F AMPHENOL CORP CL A 032095101 109 12 12.37 6 20.00 0.0015
2015-02-13 2014-12-31 13F AMPHENOL CORP CL A 032095101 97 97 5 0.0012
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.