Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionCandriam Luxembourg S.C.A.
Latest Disclosed Ownership84,133 shares
Latest Disclosed Value $ 10,630,205
Candriam Luxembourg S.C.A. reports 0.01% decrease in ownership of APH / Amphenol Corporation

On April 30, 2026 - Candriam Luxembourg S.C.A. filed a 13F-HR form disclosing ownership of 84,133 shares of Amphenol Corporation (US:APH) valued at $10,630,205 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on April 30, 2026 disclosing 84,138 shares of Amphenol Corporation. This represents a change in shares of -0.01% during the quarter. The current value of the position is $11,678,502 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)
2026-04-30 2026-03-31 13F AMPHENOL CL A 032095101 84,133 -5 -0.01 10,630 -6.51 0.0552
2026-04-30 2025-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 84,138 -23,404 -21.76 11,371 -14.56 0.0567
2026-02-13 2025-12-31 13F AMPHENOL CORP CL A 032095101 84,138 -23,404 11,371 0.0566
2025-11-06 2025-09-30 13F AMPHENOL CORP CL A 032095101 107,542 2,505 2.38 13,308 28.31 0.0697
2025-08-08 2025-06-30 13F AMPHENOL CORP CL A 032095101 105,037 -35,047 -25.02 10,373 12.89 0.0598
2025-05-14 2025-03-31 13F AMPHENOL CORP CL A 032095101 140,084 -643,591 -82.12 9,188 -83.12 0.0575
2025-02-07 2024-12-31 13F AMPHENOL CORP CL A 032095101 783,675 713,976 1,024.37 54,426 1,098.55 0.3134
2024-11-13 2024-09-30 13F AMPHENOL CORP CL A 032095101 69,699 2,007 2.96 4,541 -0.42 0.0261
2024-08-05 2024-06-30 13F AMPHENOL CORP CL A 032095101 67,692 39,545 140.49 4,560 40.48 0.0276
2024-05-06 2024-03-31 13F AMPHENOL CORP CL A 032095101 28,147 3,649 14.90 3,247 33.69 0.0208
2024-02-14 2023-12-31 13F AMPHENOL CORP CL A 032095101 24,498 -2,202 -8.25 2,429 8.30 0.0168
2023-11-13 2023-09-30 13F AMPHENOL CORP CL A 032095101 26,700 -3,279 -10.94 2,243 -11.94 0.0159
2023-08-08 2023-06-30 13F AMPHENOL CORP CL A 032095101 29,979 -340 -1.12 2,547 11.67 0.0184
2023-05-12 2023-03-31 13F AMPHENOL CORP CL A 032095101 30,319 -37,526 -55.31 2,281 -55.86 0.0158
2023-02-13 2022-12-31 13F AMPHENOL CORP CL A 032095101 67,845 -7,000 -9.35 5,165 3.05 0.0348
2022-11-10 2022-09-30 13F AMPHENOL CORP CL A 032095101 74,845 41,129 121.99 5,012 130.86 0.0353
2022-08-03 2022-06-30 13F AMPHENOL CORP CL A 032095101 33,716 0 0.00 2,171 -14.53 0.0179
2022-05-13 2022-03-31 13F AMPHENOL CORP CL A 032095101 33,716 6,985 26.13 2,540 8.64 0.0173
2022-02-10 2021-12-31 13F AMPHENOL CORP CL A 032095101 26,731 -7,882 -22.77 2,338 -7.77 0.0149
2021-11-09 2021-09-30 13F AMPHENOL CORP CL A 032095101 34,613 -6,756 -16.33 2,535 -10.42 0.0172
2021-07-20 2021-06-30 13F AMPHENOL CORP CL A 032095101 41,369 19,690 90.83 2,830 3.93 0.0194
2021-04-29 2021-03-31 13F AMPHENOL CORP CL A 032095101 21,679 0 0.00 2,723 -3.95 0.0227
2021-01-22 2020-12-31 13F AMPHENOL CORP CL A 032095101 21,679 -140,484 -86.63 2,835 -83.85 0.0224
2020-10-19 2020-09-30 13F AMPHENOL CORP CL A 032095101 162,163 63,122 63.73 17,557 85.01 0.1649
2020-07-23 2020-06-30 13F AMPHENOL CORP CL A 032095101 99,041 71,191 255.62 9,490 222.13 0.1002
2020-05-26 2020-03-31 13F AMPHENOL CORP CL A 032095101 27,850 10 0.04 2,946 -2.22 0.0327
2020-02-05 2019-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 27,840 -558 -1.96 3,013 9.96 0.0323
2020-01-21 2019-12-31 13F AMPHENOL CORP CL A 032095101 27,840 -558 3 32,175.0322
2020-02-05 2019-09-30 13F/A-1 AMPHENOL CORP CL A 032095101 28,398 1,909 7.21 2,740 8.30 0.0363
2019-10-21 2019-09-30 13F AMPHENOL CORP CL A 032095101 28,398 1,909 3 37,702.6518
2019-08-01 2019-06-30 13F AMPHENOL CORP CL A 032095101 26,489 2,215 9.12 2,530 10.34 0.0316
2019-05-02 2019-03-31 13F AMPHENOL CORP CL A 032095101 24,274 -703 -2.81 2,293 13.29 0.0293
2019-02-14 2018-12-31 13F AMPHENOL CORP CL A 032095101 24,977 -1,663 -6.24 2,024 -19.20 0.0311
2018-11-07 2018-09-30 13F AMPHENOL CORP CL A 032095101 26,640 -2,536 -8.69 2,505 -1.49 0.0333
2018-08-14 2018-06-30 13F AMPHENOL CORP CL A 032095101 29,176 1,334 4.79 2,543 6.05 0.0402
2018-05-09 2018-03-31 13F AMPHENOL CORP CL A 032095101 27,842 -899 -3.13 2,398 -4.95 0.0409
2018-02-07 2017-12-31 13F AMPHENOL CORP CL A 032095101 28,741 3,073 11.97 2,523 16.11 0.0437
2017-11-03 2017-09-30 13F AMPHENOL CORP CL A 032095101 25,668 1,563 6.48 2,173 22.08 0.0380
2017-07-31 2017-06-30 13F AMPHENOL CORP CL A 032095101 24,105 4,013 19.97 1,780 24.48 0.0335
2017-04-21 2017-03-31 13F AMPHENOL CORP CL A 032095101 20,092 1,267 6.73 1,430 13.04 0.0277
2017-02-01 2016-12-31 13F AMPHENOL CORP CL A 032095101 18,825 3,485 22.72 1,265 27.01 0.0290
2016-11-15 2016-09-30 13F AMPHENOL CORP CL A 032095101 15,340 3,743 32.28 996 49.77 0.0240
2016-07-26 2016-06-30 13F AMPHENOL CORP CL A 032095101 11,597 1,026 9.71 665 9.38 0.0173
2016-04-27 2016-03-31 13F AMPHENOL CORP CL A 032095101 10,571 10,571 0.00 608 0.0152
2016-01-25 2015-12-31 13F AMPHENOL CORP CL A 032095101 0 -15,744 -100.00 0 -100.00
2015-10-19 2015-09-30 13F AMPHENOL CORP CL A 032095101 15,744 10,214 184.70 802 149.84 0.0197
2015-07-29 2015-06-30 13F AMPHENOL CORP CL A 032095101 5,530 974 21.38 321 19.33 0.0067
2015-05-28 2015-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 4,556 0 0.00 269 9.80 0.0054
2015-04-27 2015-03-31 13F AMPHENOL CORP CL A 032095101 4,556 268
2015-05-28 2014-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 4,556 4,556 245 0.0051
2015-03-26 2014-12-31 13F AMPHENOL CORP CL A 032095101 4,556 4,556 245 0.0050
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.