Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionLegal & General Group Plc
Latest Disclosed Ownership8,114,004 shares
Latest Disclosed Value $ 1,025,204,413
Legal & General Group Plc reports 2.41% decrease in ownership of APH / Amphenol Corporation

On May 8, 2026 - Legal & General Group Plc filed a 13F-HR form disclosing ownership of 8,114,004 shares of Amphenol Corporation (US:APH) valued at $1,025,204,405 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 8,314,178 shares of Amphenol Corporation. This represents a change in shares of -2.41% during the quarter. The current value of the position is $1,126,304,895 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)
2026-05-08 2026-03-31 13F AMPHENOL CL A 032095101 8,114,004 -200,174 -2.41 1,025,204 -8.76 0.2371
2026-02-09 2025-12-31 13F AMPHENOL CORP CL A 032095101 8,314,178 -19,960 -0.24 1,123,578 8.94 0.2492
2025-11-13 2025-09-30 13F AMPHENOL CORP CL A 032095101 8,334,138 928,994 12.55 1,031,350 41.04 0.2314
2025-08-12 2025-06-30 13F AMPHENOL CORP CL A 032095101 7,405,144 -36,444 -0.49 731,258 49.82 0.1815
2025-05-15 2025-03-31 13F AMPHENOL CORP CL A 032095101 7,441,588 65,802 0.89 488,094 -4.72 0.1329
2025-02-13 2024-12-31 13F AMPHENOL CORP CL A 032095101 7,375,786 -260,351 -3.41 512,248 2.95 0.1355
2025-02-28 2024-09-30 13F/A-2 AMPHENOL CORP CL A 032095101 7,636,137 -69,891 -0.91 497,570 -4.16 0.1309
2024-11-14 2024-09-30 13F/A-1 AMPHENOL CORP CL A 032095101 9,966,823 133,695 649,438 0.1353
2024-11-14 2024-09-30 13F AMPHENOL CORP CL A 032095101 9,966,823 133,695 649,438 0.0683
2025-05-29 2024-06-30 13F/A-1 AMPHENOL CORP CL A 032095101 7,706,028 4,017,856 108.94 519,155 22.03 0.1467
2024-08-14 2024-06-30 13F AMPHENOL CORP CL A 032095101 9,833,128 5,293,292 662,458 0.1483
2025-05-29 2024-03-31 13F/A-2 AMPHENOL CORP CL A 032095101 3,688,172 -15,573 -0.42 425,430 15.87 0.1225
2024-07-01 2024-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 4,539,836 -21,767 523,670 0.1222
2024-05-14 2024-03-31 13F AMPHENOL CORP CL A 032095101 4,496,602 -65,001 518,683 0.0624
2025-05-29 2023-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 3,703,745 48,952 1.34 367,153 19.61 0.1141
2024-02-15 2023-12-31 13F AMPHENOL CORP CL A 032095101 4,561,603 906,810 452,193 0.1160
2023-11-14 2023-09-30 13F AMPHENOL CORP CL A 032095101 3,654,793 -181,979 -4.74 306,967 -5.82 0.1071
2023-08-14 2023-06-30 13F AMPHENOL CORP CL A 032095101 3,836,772 11,766 0.31 325,933 4.27 0.1060
2023-05-15 2023-03-31 13F AMPHENOL CORP CL A 032095101 3,825,006 -8,189 -0.21 312,578 7.10 0.1118
2023-02-14 2022-12-31 13F AMPHENOL CORP CL A 032095101 3,833,195 -299,907 -7.26 291,860 5.46 0.1120
2022-11-14 2022-09-30 13F AMPHENOL CORP CL A 032095101 4,133,102 -301,746 -6.80 276,755 -3.07 0.1081
2022-08-22 2022-06-30 13F AMPHENOL CORP CL A 032095101 4,434,848 225,062 5.35 285,516 -9.99 0.1010
2022-05-16 2022-03-31 13F AMPHENOL CORP CL A 032095101 4,209,786 167,601 4.15 317,208 -10.27 0.0965
2022-02-14 2021-12-31 13F AMPHENOL CORP CL A 032095101 4,042,185 -125,762 -3.02 353,529 15.83 0.1069
2021-11-15 2021-09-30 13F AMPHENOL CORP CL A 032095101 4,167,947 186,740 4.69 305,219 12.07 0.0992
2021-08-12 2021-06-30 13F AMPHENOL CORP CL A 032095101 3,981,207 101,891 2.63 272,354 6.42 0.0911
2021-05-17 2021-03-31 13F AMPHENOL CORP CL A 032095101 3,879,316 1,960,359 102.16 255,923 1.98 0.0953
2021-02-12 2020-12-31 13F AMPHENOL CORP CL A 032095101 1,918,957 -150,756 -7.28 250,942 11.98 0.0983
2020-11-13 2020-09-30 13F AMPHENOL CORP CL A 032095101 2,069,713 119,603 6.13 224,087 19.95 0.1001
2020-08-14 2020-06-30 13F AMPHENOL CORP CL A 032095101 1,950,110 -87,011 -4.27 186,823 25.52 0.0903
2020-05-14 2020-03-31 13F AMPHENOL CORP CL A 032095101 2,037,121 3,759 0.18 148,841 -32.37 0.0870
2020-02-13 2019-12-31 13F AMPHENOL CORP CL A 032095101 2,033,362 42,682 2.14 220,073 14.58 0.1048
2019-11-13 2019-09-30 13F AMPHENOL CORP CL A 032095101 1,990,680 14,341 0.73 192,075 1.31 0.4025
2019-08-14 2019-06-30 13F AMPHENOL CORP CL A 032095101 1,976,339 111,722 5.99 189,592 7.67 0.1020
2019-05-15 2019-03-31 13F AMPHENOL CORP CL A 032095101 1,864,617 337,645 22.11 176,081 42.35 0.1005
2019-02-15 2018-12-31 13F AMPHENOL CORP CL A 032095101 1,526,972 96,712 6.76 123,696 -8.00 0.0958
2018-11-20 2018-09-30 13F AMPHENOL CORP CL A 032095101 1,430,260 22,502 1.60 134,453 9.58 0.0962
2018-08-10 2018-06-30 13F AMPHENOL CORP CL A 032095101 1,407,758 -75,924 -5.12 122,699 -3.96 0.0947
2018-05-17 2018-03-31 13F AMPHENOL CORP CL A 032095101 1,483,682 -91,907 -5.83 127,763 -7.66 0.0975
2018-02-13 2017-12-31 13F AMPHENOL CORP CL A 032095101 1,575,589 76,133 5.08 138,360 9.02 0.1001
2017-11-09 2017-09-30 13F AMPHENOL CORP CL A 032095101 1,499,456 -6,483 -0.43 126,911 14.16 0.0954
2017-08-03 2017-06-30 13F AMPHENOL CORP CL A 032095101 1,505,939 33,482 2.27 111,165 6.07 0.0898
2017-05-12 2017-03-31 13F AMPHENOL CORP CL A 032095101 1,472,457 95,640 6.95 104,799 13.26 0.0889
2017-02-13 2016-12-31 13F AMPHENOL CORP CL A 032095101 1,376,817 54,817 4.15 92,526 7.81 0.0863
2016-10-12 2016-09-30 13F AMPHENOL CORP CL A 032095101 1,322,000 -5,250 -0.40 85,823 12.80 0.0869
2016-08-16 2016-06-30 13F AMPHENOL CORP CL A 032095101 1,327,250 50,958 3.99 76,082 3.10 0.0802
2016-05-16 2016-03-31 13F AMPHENOL CORP CL A 032095101 1,276,292 22,083 1.76 73,795 12.65 0.0817
2016-02-16 2015-12-31 13F AMPHENOL CORP CL A 032095101 1,254,209 48,628 4.03 65,510 6.64 0.0740
2015-11-13 2015-09-30 13F AMPHENOL CORP CL A 032095101 1,205,581 74,772 6.61 61,433 -6.29 0.0749
2015-07-31 2015-06-30 13F AMPHENOL CORP CL A 032095101 1,130,809 7,527 0.67 65,554 -0.97 0.0770
2015-05-14 2015-03-31 13F AMPHENOL CORP CL A 032095101 1,123,282 -6,951 -0.62 66,194 8.83 0.0791
2015-02-20 2014-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 1,130,233 535,579 90.07 60,821 2.42 0.0715
2015-02-17 2014-12-31 13F AMPHENOL CORP CL A 032095101 1,130,233 535,579 60,821 0.0749
2014-11-14 2014-09-30 13F AMPHENOL CORP CL A 032095101 594,654 -151,156 -20.27 59,385 -17.33 0.0712
2014-08-13 2014-06-30 13F AMPHENOL CORP CL A 032095101 745,810 -60,698 -7.53 71,838 -2.75 0.0837
2014-05-14 2014-03-31 13F AMPHENOL CORP CL A 032095101 806,508 -93,124 -10.35 73,868 -7.87 0.0897
2014-02-07 2013-12-31 13F AMPHENOL CORP CL A 032095101 899,632 1,408 0.16 80,177 15.44 0.0970
2013-11-12 2013-09-30 13F AMPHENOL CORP CL A 032095101 898,224 2,795 0.31 69,452 -0.61 0.0915
2013-08-01 2013-06-30 13F AMPHENOL CORP CL A 032095101 895,429 895,429 69,875 0.0965
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.