Amphenol Corporation
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionStandard Life Aberdeen plc
Latest Disclosed Ownership1,221,102 shares
Latest Disclosed Value $ 154,286,238
Standard Life Aberdeen plc reports 18.92% increase in ownership of APH / Amphenol Corporation

On April 29, 2026 - Standard Life Aberdeen plc filed a 13F-HR form disclosing ownership of 1,221,102 shares of Amphenol Corporation (MX:APH) valued at $154,286,238 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 1,026,818 shares of Amphenol Corporation. This represents a change in shares of 18.92% 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)
2026-04-29 2026-03-31 13F AMPHENOL CL A 032095101 1,221,102 194,284 18.92 154,286 11.19 0.1352
2026-01-16 2025-12-31 13F AMPHENOL CORP CL A 032095101 1,026,818 9,538 0.94 138,764 12.72 0.2148
2025-11-07 2025-09-30 13F AMPHENOL CORP CL A 032095101 1,017,280 34,450 3.51 123,101 26.84 0.1947
2025-07-24 2025-06-30 13F AMPHENOL CORP CL A 032095101 982,830 40,967 4.35 97,054 57.89 0.1651
2025-05-13 2025-03-31 13F AMPHENOL CORP CL A 032095101 941,863 525,200 126.05 61,471 112.66 0.1199
2025-01-24 2024-12-31 13F AMPHENOL CORP CL A 032095101 416,663 -42,951 -9.35 28,906 -2.42 0.0543
2024-10-25 2024-09-30 13F AMPHENOL CORP CL A 032095101 459,614 14,872 3.34 29,622 -1.13 0.0543
2024-08-09 2024-06-30 13F AMPHENOL CORP CL A 032095101 444,742 199,014 80.99 29,962 5.71 0.0574
2024-05-09 2024-03-31 13F AMPHENOL CORP CL A 032095101 245,728 170 0.07 28,345 16.44 0.0556
2024-01-31 2023-12-31 13F AMPHENOL CORP CL A 032095101 245,558 100,777 69.61 24,342 100.18 0.0528
2023-11-07 2023-09-30 13F AMPHENOL CORP CL A 032095101 144,781 -5,531 -3.68 12,160 -4.77 0.0310
2024-06-20 2023-06-30 13F/A-1 AMPHENOL CORP CL A 032095101 150,312 -3,006 -1.96 12,769 1.92 0.0297
2023-08-04 2023-06-30 13F AMPHENOL CORP CL A 032095101 150,312 -3,006 12,769 0.0297
2024-06-20 2023-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 153,318 -719 -0.47 12,529 6.83 0.0314
2023-04-28 2023-03-31 13F AMPHENOL CORP CL A 032095101 153,318 -719 12,529 0.0314
2024-06-20 2022-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 154,037 11,711 8.23 11,728 23.06 0.0319
2023-02-10 2022-12-31 13F AMPHENOL CORP CL A 032095101 154,037 11,711 11,728 0.0319
2022-11-10 2022-09-30 13F AMPHENOL CORP CL A 032095101 142,326 228 0.16 9,530 4.24 0.0284
2022-08-05 2022-06-30 13F AMPHENOL CORP CL A 032095101 142,098 -5,641 -3.82 9,142 -19.08 0.0287
2022-05-04 2022-03-31 13F AMPHENOL CORP CL A 032095101 147,739 -44,460 -23.13 11,297 -32.80 0.0289
2022-02-10 2021-12-31 13F/A-1 AMPHENOL CORP CL A 032095101 192,199 -19,987 -9.42 16,810 6.68 0.0369
2022-02-08 2021-12-31 13F AMPHENOL CORP CL A 032095101 192,199 -19,987 16,810 0.0121
2021-11-15 2021-09-30 13F AMPHENOL CORP CL A 032095101 212,186 -25,196 -10.61 15,757 -2.97 0.0355
2021-08-10 2021-06-30 13F AMPHENOL CORP CL A 032095101 237,382 -28,355 -10.67 16,240 -7.45 0.0356
2021-05-06 2021-03-31 13F AMPHENOL CORP CL A 032095101 265,737 138,066 108.14 17,547 5.10 0.0399
2021-02-10 2020-12-31 13F AMPHENOL CORP CL A 032095101 127,671 6,395 5.27 16,695 27.15 0.0407
2020-10-21 2020-09-30 13F AMPHENOL CORP CL A 032095101 121,276 6,582 5.74 13,130 19.48 0.0350
2020-08-10 2020-06-30 13F AMPHENOL CORP CL A 032095101 114,694 -8,001 -6.52 10,989 22.89 0.0297
2020-05-13 2020-03-31 13F AMPHENOL CORP CL A 032095101 122,695 1 0.00 8,942 -32.66 0.0284
2020-02-18 2019-12-31 13F AMPHENOL CORP CL A 032095101 122,694 -3,575 -2.83 13,279 8.96 0.0321
2019-11-13 2019-09-30 13F AMPHENOL CORP CL A 032095101 126,269 -1,664 -1.30 12,187 -0.71 0.0304
2019-08-13 2019-06-30 13F AMPHENOL CORP CL A 032095101 127,933 -3,809 -2.89 12,274 -1.35 0.0273
2019-05-14 2019-03-31 13F AMPHENOL CORP CL A 032095101 131,742 41,449 45.90 12,442 71.35 0.0270
2019-02-12 2018-12-31 13F AMPHENOL CORP CL A 032095101 90,293 -1,843 -2.00 7,261 -16.19 0.0172
2018-11-20 2018-09-30 13F/A-1 AMPHENOL CORP CL A 032095101 92,136 9,061 10.91 8,664 19.65 0.0161
2018-11-13 2018-09-30 13F AMPHENOL CORP CL A 032095101 92,136 9,061 8,664
2018-08-09 2018-06-30 13F AMPHENOL CORP CL A 032095101 83,075 16,310 24.43 7,241 25.89 0.0139
2018-05-15 2018-03-31 13F AMPHENOL CORP CL A 032095101 66,765 11,554 20.93 5,752 18.65 0.0114
2018-02-12 2017-12-31 13F AMPHENOL CORP CL A 032095101 55,211 786 1.44 4,848 5.23 0.0093
2017-11-14 2017-09-30 13F AMPHENOL CORP CL A 032095101 54,425 54,425 4,607 0.0084
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.