Amphenol Corporation
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionCIBC World Markets Inc.
Latest Disclosed Ownership279,938 shares
Latest Disclosed Value $ 35,370,166
CIBC World Markets Inc. reports 6.61% decrease in ownership of APH / Amphenol Corporation

On May 14, 2026 - CIBC World Markets Inc. filed a 13F-HR form disclosing ownership of 279,938 shares of Amphenol Corporation (MX:APH) valued at $35,370,166 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 299,741 shares of Amphenol Corporation. This represents a change in shares of -6.61% 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)
2026-05-14 2026-03-31 13F AMPHENOL CL A 032095101 279,938 -19,803 -6.61 35,370 -12.68 0.0577
2026-02-10 2025-12-31 13F AMPHENOL CORP CL A 032095101 299,741 7,854 2.69 40,507 12.14 0.0653
2025-11-06 2025-09-30 13F AMPHENOL CORP CL A 032095101 291,887 42,987 17.27 36,121 46.96 0.0647
2025-08-14 2025-06-30 13F AMPHENOL CORP CL A 032095101 248,900 87,196 53.92 24,579 131.74 0.0487
2025-05-14 2025-03-31 13F AMPHENOL CORP CL A 032095101 161,704 28,430 21.33 10,606 117,744.44 0.0227
2025-01-23 2024-12-31 13F AMPHENOL CORP CL A 032095101 133,274 26,085 24.34 9 50.00 0.0194
2024-11-12 2024-09-30 13F AMPHENOL CORP CL A 032095101 107,189 3,611 3.49 7 0.00 0.0145
2024-08-07 2024-06-30 13F AMPHENOL CORP CL A 032095101 103,578 46,886 82.70 7 0.00 0.0161
2024-05-13 2024-03-31 13F AMPHENOL CORP CL A 032095101 56,692 11,759 26.17 7 50.00 0.0155
2024-02-13 2023-12-31 13F AMPHENOL CORP CL A 032095101 44,933 2,304 5.40 4 33.33 0.0113
2023-11-13 2023-09-30 13F AMPHENOL CORP CL A 032095101 42,629 2,240 5.55 4 0.00 0.0118
2023-08-11 2023-06-30 13F AMPHENOL CORP CL A 032095101 40,389 33,634 497.91 3 0.0109
2023-05-12 2023-03-31 13F AMPHENOL CORP CL A 032095101 6,755 -92 -1.34 1 0.0019
2023-02-13 2022-12-31 13F AMPHENOL CORP CL A 032095101 6,847 57 0.84 1 -100.00 0.0018
2022-11-10 2022-09-30 13F AMPHENOL CORP CL A 032095101 6,790 -3,621 -34.78 455 -32.09 0.0017
2022-08-10 2022-06-30 13F AMPHENOL CORP CL A 032095101 10,411 -8,075 -43.68 670 -51.90 0.0024
2022-05-12 2022-03-31 13F AMPHENOL CORP CL A 032095101 18,486 -1,725 -8.53 1,393 -21.21 0.0044
2022-02-14 2021-12-31 13F AMPHENOL CORP CL A 032095101 20,211 -14,081 -41.06 1,768 -29.59 0.0051
2021-11-12 2021-09-30 13F AMPHENOL CORP CL A 032095101 34,292 12,248 55.56 2,511 66.51 0.0082
2021-08-12 2021-06-30 13F AMPHENOL CORP CL A 032095101 22,044 6,108 38.33 1,508 43.48 0.0042
2021-05-11 2021-03-31 13F AMPHENOL CORP CL A 032095101 15,936 4,667 41.41 1,051 -28.70 0.0031
2021-02-08 2020-12-31 13F AMPHENOL CORP CL A 032095101 11,269 8,576 318.46 1,474 404.79 0.0047
2020-11-12 2020-09-30 13F AMPHENOL CORP CL A 032095101 2,693 -2,234 -45.34 292 -38.14 0.0013
2020-08-13 2020-06-30 13F AMPHENOL CORP CL A 032095101 4,927 -3,409 -40.89 472 -22.37 0.0021
2020-05-15 2020-03-31 13F AMPHENOL CORP CL A 032095101 8,336 2,198 35.81 608 -8.43 0.0031
2020-02-13 2019-12-31 13F AMPHENOL CORP CL A 032095101 6,138 1,347 28.12 664 43.72 0.0027
2019-11-13 2019-09-30 13F AMPHENOL CORP CL A 032095101 4,791 -827 -14.72 462 -14.29 0.0021
2019-08-08 2019-06-30 13F AMPHENOL CORP CL A 032095101 5,618 -6,518 -53.71 539 -52.97 0.0024
2019-05-09 2019-03-31 13F AMPHENOL CORP CL A 032095101 12,136 78 0.65 1,146 17.30 0.0053
2019-02-13 2018-12-31 13F AMPHENOL CORP CL A 032095101 12,058 -6,430 -34.78 977 -43.79 0.0050
2018-11-09 2018-09-30 13F AMPHENOL CORP CL A 032095101 18,488 -1,583 -7.89 1,738 -0.63 0.0074
2018-08-08 2018-06-30 13F AMPHENOL CORP CL A 032095101 20,071 7,755 62.97 1,749 64.84 0.0076
2018-05-18 2018-03-31 13F AMPHENOL CORP CL A 032095101 12,316 12,316 1,061 0.0044
2017-11-13 2017-09-30 13F AMPHENOL CORP CL 032095101 0 -30,293 -100.00 0 -100.00
2017-08-10 2017-06-30 13F AMPHENOL CORP CL 032095101 30,293 24,017 382.68 2,236 400.22 0.0095
2017-05-08 2017-03-31 13F AMPHENOL CORP CL 032095101 6,276 -68,771 -91.64 447 -91.14 0.0014
2017-05-08 2016-12-31 13F/A-1 AMPHENOL CORP CL 032095101 75,047 46,001 158.37 5,043 167.39 0.0188
2017-01-09 2016-12-31 13F AMPHENOL CORP CL 032095101 52,347 23,301 3,518 0.0145
2017-05-08 2016-09-30 13F/A-1 AMPHENOL CORP CL 032095101 29,046 5,426 22.97 1,886 39.29 0.0077
2016-11-03 2016-09-30 13F AMPHENOL CORP CL 032095101 29,046 5,426 1,886 0.0081
2016-07-21 2016-06-30 13F AMPHENOL CORP CL 032095101 23,620 16,417 227.92 1,354 225.48 0.0060
2016-05-04 2016-03-31 13F AMPHENOL CORP CL 032095101 7,203 -5,881 -44.95 416 -39.09 0.0019
2016-01-14 2015-12-31 13F AMPHENOL CORP CL 032095101 13,084 5,138 64.66 683 68.64 0.0035
2015-10-26 2015-09-30 13F/A-1 AMPHENOL CORP CL 032095101 7,946 2,874 56.66 405 37.76 0.0020
2015-10-22 2015-09-30 13F AMPHENOL CORP CL 032095101 7,946 2,874 405 0.0020
2015-07-22 2015-06-30 13F AMPHENOL CORP CL 032095101 5,072 5,072 0.00 294 0.0013
2015-02-04 2014-12-31 13F AMPHENOL CORP CL 032095101 0 -7,582 -100.00 0 -100.00
2014-10-22 2014-09-30 13F AMPHENOL CORP CL 032095101 7,582 -381 -4.78 379 -50.59 0.0014
2014-08-08 2014-06-30 13F AMPHENOL CORP CL 032095101 7,963 7,963 767 0.0027
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.