安費諾公司
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionProShare Advisors LLC
Latest Disclosed Ownership281,468 shares
Latest Disclosed Value $ 35,563,482
ProShare Advisors LLC reports 18.30% decrease in ownership of APH / Amphenol Corporation

On April 24, 2026 - ProShare Advisors LLC filed a 13F-HR form disclosing ownership of 281,468 shares of Amphenol Corporation (MX:APH) valued at $35,563,482 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 344,529 shares of Amphenol Corporation. This represents a change in shares of -18.30% 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)
2026-04-24 2026-03-31 13F AMPHENOL CL A 032095101 281,468 -63,061 -18.30 35,563 -23.62 0.0527
2026-02-06 2025-12-31 13F AMPHENOL CORP CL A 032095101 344,529 1,243 0.36 46,560 9.60 0.0822
2025-11-06 2025-09-30 13F AMPHENOL CORP CL A 032095101 343,286 -21,171 -5.81 42,482 18.04 0.0889
2025-08-07 2025-06-30 13F AMPHENOL CORP CL A 032095101 364,457 17,435 5.02 35,990 58.12 0.0718
2025-05-08 2025-03-31 13F AMPHENOL CORP CL A 032095101 347,022 -31,085 -8.22 22,761 -13.32 0.0514
2025-02-14 2024-12-31 13F AMPHENOL CORP CL A 032095101 378,107 19,724 5.50 26,260 12.45 0.0600
2024-11-14 2024-09-30 13F AMPHENOL CORP CL A 032095101 358,383 -15,677 -4.19 23,352 -7.33 0.0572
2024-08-13 2024-06-30 13F AMPHENOL CORP CL A 032095101 374,060 178,006 90.79 25,200 11.44 0.0674
2024-05-08 2024-03-31 13F AMPHENOL CORP CL A 032095101 196,054 -5,310 -2.64 22,615 13.29 0.0601
2024-02-14 2023-12-31 13F AMPHENOL CORP CL A 032095101 201,364 3,901 1.98 19,961 20.36 0.0610
2023-11-13 2023-09-30 13F AMPHENOL CORP CL A 032095101 197,463 5,326 2.77 16,585 1.61 0.0517
2023-08-10 2023-06-30 13F AMPHENOL CORP CL A 032095101 192,137 29,405 18.07 16,322 22.74 0.0473
2023-05-26 2023-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 162,732 41,224 33.93 13,298 43.75 0.0406
2023-05-12 2023-03-31 13F AMPHENOL CORP CL A 032095101 162,732 41,224 13,298 0.0423
2023-02-02 2022-12-31 13F AMPHENOL CORP CL A 032095101 121,508 -2,833 -2.28 9,252 11.11 0.0325
2022-11-07 2022-09-30 13F AMPHENOL CORP CL A 032095101 124,341 2,049 1.68 8,326 5.75 0.0319
2022-08-01 2022-06-30 13F AMPHENOL CORP CL A 032095101 122,292 -39,953 -24.63 7,873 -35.60 0.0261
2022-05-10 2022-03-31 13F AMPHENOL CORP CL A 032095101 162,245 3,960 2.50 12,225 -11.69 0.0263
2022-02-08 2021-12-31 13F AMPHENOL CORP CL A 032095101 158,285 6,287 4.14 13,843 24.36 0.0272
2021-11-12 2021-09-30 13F AMPHENOL CORP CL A 032095101 151,998 5,432 3.71 11,131 11.01 0.0313
2021-08-13 2021-06-30 13F AMPHENOL CORP CL A 032095101 146,566 12,854 9.61 10,027 13.67 0.0293
2021-05-14 2021-03-31 13F AMPHENOL CORP CL A 032095101 133,712 67,623 102.32 8,821 2.07 0.0277
2021-02-09 2020-12-31 13F AMPHENOL CORP CL A 032095101 66,089 2,314 3.63 8,642 25.16 0.0321
2020-11-13 2020-09-30 13F AMPHENOL CORP CL A 032095101 63,775 5,202 8.88 6,905 23.04 0.0319
2020-08-03 2020-06-30 13F AMPHENOL CORP CL A 032095101 58,573 25,381 76.47 5,612 132.00 0.0300
2020-05-15 2020-03-31 13F AMPHENOL CORP CL A 032095101 33,192 -17,838 -34.96 2,419 -56.20 0.0174
2020-02-12 2019-12-31 13F AMPHENOL CORP CL A 032095101 51,030 15,273 42.71 5,523 60.04 0.0256
2019-11-12 2019-09-30 13F AMPHENOL CORP CL A 032095101 35,757 2,514 7.56 3,451 8.22 0.0193
2019-08-13 2019-06-30 13F AMPHENOL CORP CL A 032095101 33,243 -2,702 -7.52 3,189 -6.07 0.0191
2019-05-15 2019-03-31 13F AMPHENOL CORP CL A 032095101 35,945 -1,409 -3.77 3,395 12.19 0.0203
2019-02-14 2018-12-31 13F AMPHENOL CORP CL A 032095101 37,354 4,365 13.23 3,026 -2.45 0.0212
2018-11-14 2018-09-30 13F AMPHENOL CORP CL A 032095101 32,989 -7,742 -19.01 3,102 -12.62 0.0211
2018-08-13 2018-06-30 13F AMPHENOL CORP CL A 032095101 40,731 -3,400 -7.70 3,550 -6.60 0.0238
2018-05-14 2018-03-31 13F AMPHENOL CORP CL A 032095101 44,131 1,473 3.45 3,801 1.50 0.0248
2018-02-14 2017-12-31 13F AMPHENOL CORP CL A 032095101 42,658 14,102 49.38 3,745 54.94 0.0260
2017-11-13 2017-09-30 13F AMPHENOL CORP CL A 032095101 28,556 3,827 15.48 2,417 32.44 0.0222
2017-08-11 2017-06-30 13F AMPHENOL CORP CL A 032095101 24,729 -1,303 -5.01 1,825 -1.51 0.0182
2017-05-12 2017-03-31 13F/A-2 AMPHENOL CORP CL A 032095101 26,032 -1,639 -5.92 1,853 -0.32 0.0194
2017-05-08 2017-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 26,032 0 1,853 0.0194
2017-04-25 2017-03-31 13F AMPHENOL CORP CL A 032095101 26,032 1,853
2017-02-13 2016-12-31 13F AMPHENOL CORP CL A 032095101 27,671 6,214 28.96 1,859 33.45 0.0206
2016-11-10 2016-09-30 13F AMPHENOL CORP CL A 032095101 21,457 -7,060 -24.76 1,393 -14.80 0.0195
2016-08-12 2016-06-30 13F AMPHENOL CORP CL A 032095101 28,517 -2,860 -9.11 1,635 -9.87 0.0211
2016-05-06 2016-03-31 13F AMPHENOL CORP CL A 032095101 31,377 -13,231 -29.66 1,814 -22.15 0.0250
2016-02-05 2015-12-31 13F AMPHENOL CORP CL A 032095101 44,608 2,898 6.95 2,330 9.60 0.0282
2015-11-06 2015-09-30 13F AMPHENOL CORP CL A 032095101 41,710 6,680 19.07 2,126 4.68 0.0299
2015-08-11 2015-06-30 13F AMPHENOL CORP CL A 032095101 35,030 -10,138 -22.45 2,031 -23.70 0.0281
2015-05-08 2015-03-31 13F AMPHENOL CORP CL A 032095101 45,168 45,168 0.00 2,662 0.0314
2015-01-30 2014-12-31 13F AMPHENOL CORP CL A 032095101 0 -23,975 -100.00 0 -100.00
2014-11-06 2014-09-30 13F AMPHENOL CORP CL A 032095101 23,975 -2,113 -8.10 2,394 -4.74 0.0317
2014-08-08 2014-06-30 13F AMPHENOL CORP CL A 032095101 26,088 -2,599 -9.06 2,513 -4.41 0.0326
2014-05-07 2014-03-31 13F AMPHENOL CORP CL A 032095101 28,687 1,911 7.14 2,629 10.09 0.0329
2014-02-04 2013-12-31 13F AMPHENOL CORP CL A 032095101 26,776 14,083 110.95 2,388 143.18 0.0356
2013-11-07 2013-09-30 13F AMPHENOL CORP CL A 032095101 12,693 -11,453 -47.43 982 -47.82 0.0233
2013-07-25 2013-06-30 13F AMPHENOL CORP CL A 032095101 24,146 24,146 1,882 0.0369
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.