Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionFranklin Resources Inc
Latest Disclosed Ownership9,306,837 shares
Latest Disclosed Value $ 1,175,918,815
Franklin Resources Inc reports 18.80% decrease in ownership of APH / Amphenol Corporation

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 9,306,837 shares of Amphenol Corporation (US:APH) valued at $1,175,918,855 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 11,462,227 shares of Amphenol Corporation. This represents a change in shares of -18.80% during the quarter. The current value of the position is $1,373,875,278 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)
2026-05-13 2026-03-31 13F AMPHENOL CL A 032095101 9,306,837 -2,155,390 -18.80 1,175,919 -24.09 0.2880
2026-02-11 2025-12-31 13F AMPHENOL CORP CL A 032095101 11,462,227 -1,385,011 -10.78 1,549,005 -2.18 0.3800
2025-11-13 2025-09-30 13F AMKOR TECHNOLOGY COM 032095101 12,847,238 300,232 2.39 1,583,478 27.80 0.3949
2025-08-12 2025-06-30 13F AMPHENOL CORP CL A 032095101 12,547,006 1,486,105 13.44 1,239,017 70.78 0.3285
2025-05-13 2025-03-31 13F AMPHENOL CORP CL A 032095101 11,060,901 4,107,670 59.08 725,485 50.23 0.2087
2025-02-12 2024-12-31 13F AMPHENOL CORP CL A 032095101 6,953,231 78,664 1.14 482,902 4.25 0.1341
2024-11-27 2024-09-30 13F/A-1 AMPHENOL CORP CL A 032095101 6,874,567 -756,082 -9.91 463,208 -9.90 0.1301
2024-11-12 2024-09-30 13F AMPHENOL CORP CL A 032095101 6,874,567 -756,082 463,208 0.0223
2024-08-14 2024-06-30 13F AMPHENOL CORP CL A 032095101 7,630,649 3,722,663 95.26 514,077 14.04 0.1580
2024-05-13 2024-03-31 13F AMPHENOL CORP CL A 032095101 3,907,986 -107,642 -2.68 450,786 13.24 0.1427
2024-02-09 2023-12-31 13F AMPHENOL CORP CL A 032095101 4,015,628 20,521 0.51 398,069 18.63 0.1861
2023-11-13 2023-09-30 13F AMPHENOL CORP CL A 032095101 3,995,107 134,735 3.49 335,549 2.32 0.1705
2023-08-11 2023-06-30 13F AMPHENOL CORP CL A 032095101 3,860,372 238,453 6.58 327,939 10.80 0.1559
2023-05-12 2023-03-31 13F AMPHENOL CORP CL A 032095101 3,621,919 62,323 1.75 295,983 9.21 0.1485
2023-02-10 2022-12-31 13F AMPHENOL CORP CL A 032095101 3,559,596 -21,544 -0.60 271,028 13.02 0.1409
2022-11-14 2022-09-30 13F AMPHENOL CORP CL A 032095101 3,581,140 -10,869 -0.30 239,794 3.69 0.1307
2022-08-11 2022-06-30 13F AMPHENOL CORP CL A 032095101 3,592,009 -1,587,525 -30.65 231,253 -40.75 0.1147
2022-05-13 2022-03-31 13F AMPHENOL CORP CL A 032095101 5,179,534 -1,082,885 -17.29 390,278 -28.74 0.1560
2022-02-11 2021-12-31 13F AMPHENOL CORP CL A 032095101 6,262,419 83,568 1.35 547,711 21.04 0.1975
2021-11-12 2021-09-30 13F AMPHENOL CORP CL A 032095101 6,178,851 -10,319 -0.17 452,487 6.87 0.1704
2021-08-13 2021-06-30 13F AMPHENOL CORP CL A 032095101 6,189,170 27,238 0.44 423,399 4.16 0.1618
2021-05-13 2021-03-31 13F AMPHENOL CORP CL A 032095101 6,161,932 2,675,733 76.75 406,503 -10.83 0.1654
2021-02-10 2020-12-31 13F AMPHENOL CORP CL A 032095101 3,486,199 -182,610 -4.98 455,891 14.78 0.1929
2020-11-12 2020-09-30 13F AMPHENOL CORP CL A 032095101 3,668,809 118,352 3.33 397,194 8.34 0.1923
2020-08-13 2020-06-30 13F AMPHENOL CORP CL A 032095101 3,550,457 182,198 5.41 366,615 49.35 0.1889
2020-05-13 2020-03-31 13F AMPHENOL CORP CL A 032095101 3,368,259 445,227 15.23 245,478 -22.41 0.1639
2020-03-11 2019-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 2,923,032 17,287 0.59 316,360 12.82 0.1662
2020-02-12 2019-12-31 13F AMPHENOL CORP CL A 032095101 2,923,032 17,287 316,360 39,960.5993
2019-11-14 2019-09-30 13F AMPHENOL CORP CL A 032095101 2,905,745 71,738 2.53 280,405 3.13 0.1523
2019-08-14 2019-06-30 13F AMPHENOL CORP CL A 032095101 2,834,007 71,416 2.59 271,894 4.21 0.1446
2019-05-15 2019-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 2,762,591 -207,970 -7.00 260,898 8.40 0.1397
2019-05-14 2019-03-31 13F AMPHENOL CORP CL A 032095101 2,762,591 -207,970 260,898
2019-02-12 2018-12-31 13F AMPHENOL CORP CL A 032095101 2,970,561 711,628 31.50 240,675 13.32 0.1453
2018-11-13 2018-09-30 13F AMPHENOL CORP CL A 032095101 2,258,933 325,451 16.83 212,382 26.04 0.1057
2018-08-14 2018-06-30 13F AMPHENOL CORP CL A 032095101 1,933,482 352,447 22.29 168,498 23.74 0.0864
2018-05-10 2018-03-31 13F AMPHENOL CORP CL A 032095101 1,581,035 362,257 29.72 136,175 27.25 0.0690
2018-02-14 2017-12-31 13F AMPHENOL CORP CL A 032095101 1,218,778 189,668 18.43 107,012 22.86 0.0514
2017-11-13 2017-09-30 13F AMPHENOL CORP CL A 032095101 1,029,110 92,212 9.84 87,103 25.94 0.0427
2017-08-10 2017-06-30 13F AMPHENOL CORP CL A 032095101 936,898 421,950 81.94 69,162 88.71 0.0345
2017-05-12 2017-03-31 13F AMPHENOL CORP CL A 032095101 514,948 -2,630 -0.51 36,649 5.37 0.0186
2017-02-14 2016-12-31 13F AMPHENOL CORP CL A 032095101 517,578 102,883 24.81 34,782 29.20 0.0180
2016-11-14 2016-09-30 13F AMPHENOL CORP CL A 032095101 414,695 3 0.00 26,922 13.24 0.0141
2016-08-11 2016-06-30 13F AMPHENOL CORP CL A 032095101 414,692 500 0.12 23,775 -0.72 0.0128
2016-05-10 2016-03-31 13F AMPHENOL CORP CL A 032095101 414,192 9,138 2.26 23,948 13.20 0.0127
2016-04-27 2015-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 405,054 -2,934 -0.72 21,156 1.76 0.0107
2016-02-12 2015-12-31 13F AMPHENOL CORP CL A 032095101 405,054 21,156
2015-11-10 2015-09-30 13F AMPHENOL CORP CL A 032095101 407,988 2,666 0.66 20,791 -11.52 0.0103
2015-08-12 2015-06-30 13F AMPHENOL CORP CL A 032095101 405,322 100,248 32.86 23,497 30.70 0.0107
2015-05-14 2015-03-31 13F AMPHENOL CORP CL A 032095101 305,074 199,000 187.60 17,978 214.96 0.0082
2015-02-10 2014-12-31 13F AMPHENOL CORP CL A 032095101 106,074 77,987 277.66 5,708 103.49 0.0026
2014-11-12 2014-09-30 13F AMPHENOL CORP CL A 032095101 28,087 25,517 992.88 2,805 1,031.05 0.0013
2014-08-12 2014-06-30 13F AMPHENOL CORP CL A 032095101 2,570 50 1.98 248 7.36 0.0001
2014-05-13 2014-03-31 13F AMPHENOL CORP CL A 032095101 2,520 0 0.00 231 2.67 0.0001
2014-02-12 2013-12-31 13F AMPHENOL CORP CL A 032095101 2,520 -650 -20.50 225 -8.16 0.0001
2013-11-14 2013-09-30 13F AMPHENOL CORP CL A 032095101 3,170 3,170 245 0.0001
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.