Amphenol Corporation
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionFirst Trust Advisors Lp
Latest Disclosed Ownership1,689,755 shares
Latest Disclosed Value $ 213,500,446
First Trust Advisors Lp reports 42.14% increase in ownership of APH / Amphenol Corporation

On May 13, 2026 - First Trust Advisors Lp filed a 13F-HR form disclosing ownership of 1,689,755 shares of Amphenol Corporation (MX:APH) valued at $213,500,446 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,188,758 shares of Amphenol Corporation. This represents a change in shares of 42.14% during the quarter.

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)
2026-05-13 2026-03-31 13F AMPHENOL CL A 032095101 1,689,755 500,997 42.14 213,500 32.90 0.1522
2026-02-13 2025-12-31 13F AMPHENOL CORP CL A 032095101 1,188,758 -24,606 -2.03 160,649 6.99 0.1168
2025-11-12 2025-09-30 13F AMPHENOL CORP CL A 032095101 1,213,364 -17,979 -1.46 150,154 23.49 0.1116
2025-08-13 2025-06-30 13F AMPHENOL CORP CL A 032095101 1,231,343 -69,536 -5.35 121,595 42.51 0.0978
2025-05-14 2025-03-31 13F AMPHENOL CORP CL A 032095101 1,300,879 55,052 4.42 85,325 -1.38 0.0756
2025-02-13 2024-12-31 13F AMPHENOL CORP CL A 032095101 1,245,827 -2,623,816 -67.81 86,523 -65.69 0.0763
2024-11-13 2024-09-30 13F AMPHENOL CORP CL A 032095101 3,869,643 -468,779 -10.81 252,146 -13.73 0.2402
2024-08-13 2024-06-30 13F AMPHENOL CORP CL A 032095101 4,338,422 2,170,886 100.15 292,280 16.90 0.2980
2024-05-13 2024-03-31 13F AMPHENOL CORP CL A 032095101 2,167,536 -291,349 -11.85 250,025 2.57 0.2538
2024-02-13 2023-12-31 13F AMPHENOL CORP CL A 032095101 2,458,885 -139,121 -5.35 243,749 11.71 0.2660
2023-11-13 2023-09-30 13F AMPHENOL CORP CL A 032095101 2,598,006 -195,722 -7.01 218,207 -8.06 0.2586
2023-08-14 2023-06-30 13F AMPHENOL CORP CL A 032095101 2,793,728 -15,634 -0.56 237,327 3.37 0.2699
2023-05-15 2023-03-31 13F AMPHENOL CORP CL A 032095101 2,809,362 -17,852 -0.63 229,581 6.65 0.2651
2023-02-09 2022-12-31 13F AMPHENOL CORP CL A 032095101 2,827,214 -162,814 -5.45 215,268 7.52 0.2560
2022-11-14 2022-09-30 13F AMPHENOL CORP CL A 032095101 2,990,028 -45,280 -1.49 200,212 2.46 0.2596
2022-08-12 2022-06-30 13F AMPHENOL CORP CL A 032095101 3,035,308 34,138 1.14 195,413 -13.59 0.2413
2022-05-13 2022-03-31 13F AMPHENOL CORP CL A 032095101 3,001,170 97,917 3.37 226,139 -10.94 0.2313
2022-02-08 2021-12-31 13F AMPHENOL CORP CL A 032095101 2,903,253 -162,860 -5.31 253,919 13.09 0.2470
2021-11-15 2021-09-30 13F AMPHENOL CORP CL A 032095101 3,066,113 2,475,528 419.17 224,532 455.74 0.2415
2021-10-12 2021-06-30 13F/A-1 AMPHENOL CORP CL A 032095101 590,585 -2,058,399 -77.71 40,402 -76.89 0.0437
2021-08-16 2021-06-30 13F AMPHENOL CORP CL A 032095101 590,585 -2,058,399 40,402 0.0417
2021-05-14 2021-03-31 13F AMPHENOL CORP CL A 032095101 2,648,984 1,250,278 89.39 174,847 -4.41 0.2117
2021-02-02 2020-12-31 13F AMPHENOL CORP CL A 032095101 1,398,706 1,324,691 1,789.76 182,909 2,182.37 0.2424
2020-11-05 2020-09-30 13F AMPHENOL CORP CL A 032095101 74,015 33,204 81.36 8,014 104.96 0.0128
2020-07-22 2020-06-30 13F AMPHENOL CORP CL A 032095101 40,811 -274,461 -87.06 3,910 -82.98 0.0068
2020-05-06 2020-03-31 13F AMPHENOL CORP CL A 032095101 315,272 65,043 25.99 22,977 -15.16 0.0521
2020-02-03 2019-12-31 13F AMPHENOL CORP CL A 032095101 250,229 61,543 32.62 27,082 48.74 0.0462
2019-11-04 2019-09-30 13F AMPHENOL CORP CL A 032095101 188,686 -586,697 -75.67 18,208 -75.52 0.0343
2019-07-30 2019-06-30 13F AMPHENOL CORP CL A 032095101 775,383 29,134 3.90 74,390 5.55 0.1402
2019-06-19 2019-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 746,249 433,038 138.26 70,476 177.73 0.1402
2019-05-09 2019-03-31 13F AMPHENOL CORP CL A 032095101 746,249 433,038 70,476
2019-02-07 2018-12-31 13F AMPHENOL CORP CL A 032095101 313,211 -185,845 -37.24 25,376 -45.92 0.0602
2018-10-25 2018-09-30 13F AMPHENOL CORP CL A 032095101 499,056 84,386 20.35 46,921 29.84 0.0874
2018-08-02 2018-06-30 13F AMPHENOL CORP CL A 032095101 414,670 -84,099 -16.86 36,138 -15.88 0.0749
2018-04-23 2018-03-31 13F AMPHENOL CORP CL A 032095101 498,769 -72,048 -12.62 42,959 -14.28 0.0986
2018-02-08 2017-12-31 13F AMPHENOL CORP CL A 032095101 570,817 265,135 86.74 50,118 93.71 0.1193
2017-10-24 2017-09-30 13F AMPHENOL CORP CL A 032095101 305,682 -30,639 -9.11 25,873 4.21 0.0666
2017-08-02 2017-06-30 13F AMPHENOL CORP CL A 032095101 336,321 -119,461 -26.21 24,827 -23.46 0.0663
2017-05-02 2017-03-31 13F AMPHENOL CORP CL A 032095101 455,782 135,411 42.27 32,438 50.67 0.0899
2017-02-06 2016-12-31 13F AMPHENOL CORP CL A 032095101 320,371 192,657 150.85 21,529 159.67 0.0641
2016-11-01 2016-09-30 13F AMPHENOL CORP CL A 032095101 127,714 -174,696 -57.77 8,291 -52.18 0.0248
2016-08-04 2016-06-30 13F AMPHENOL CORP CL A 032095101 302,410 165,107 120.25 17,337 118.38 0.0546
2016-05-10 2016-03-31 13F AMPHENOL CORP CL A 032095101 137,303 13,271 10.70 7,939 22.55 0.0255
2016-05-04 2015-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 124,032 -204,327 -62.23 6,478 -61.29 0.0168
2016-02-03 2015-12-31 13F AMPHENOL CORP CL A 032095101 124,032 6,478
2015-11-05 2015-09-30 13F AMPHENOL CORP CL A 032095101 328,359 -168,859 -33.96 16,733 -41.95 0.0485
2015-08-04 2015-06-30 13F AMPHENOL CORP CL A 032095101 497,218 214,681 75.98 28,824 73.12 0.0748
2015-05-04 2015-03-31 13F AMPHENOL CORP CL A 032095101 282,537 -235,090 -45.42 16,650 -40.22 0.0489
2015-02-13 2014-12-31 13F AMPHENOL CORP CL A 032095101 517,627 387,473 297.70 27,854 114.31 0.0940
2014-11-12 2014-09-30 13F AMPHENOL CORP CL A 032095101 130,154 29,768 29.65 12,997 34.39 0.0511
2014-08-11 2014-06-30 13F AMPHENOL CORP CL A 032095101 100,386 -16,601 -14.19 9,671 -9.80 0.0402
2014-05-12 2014-03-31 13F AMPHENOL CORP CL A 032095101 116,987 77,032 192.80 10,722 200.93 0.0471
2014-08-08 2013-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 39,955 -49,498 -55.33 3,563 -48.53 0.0173
2014-02-13 2013-12-31 13F AMPHENOL CORP CL A 032095101 39,955 3,563
2013-11-12 2013-09-30 13F AMPHENOL CORP CL A 032095101 89,453 -85,641 -48.91 6,922 -49.28 0.0375
2013-08-12 2013-06-30 13F AMPHENOL CORP CL A 032095101 175,094 175,094 13,647 0.0888
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.