암페놀 주식회사
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership1,927,780 shares
Latest Disclosed Value $ 243,616,189
Ameriprise Financial Inc reports 7.83% increase in ownership of APH / Amphenol Corporation

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 1,927,780 shares of Amphenol Corporation (MX:APH) valued at $243,616,189 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,787,743 shares of Amphenol Corporation. This represents a change in shares of 7.83% 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)
2026-05-15 2026-03-31 13F AMPHENOL CORP-CL A COM 032095101 1,927,780 140,037 7.83 243,616 2.88 0.0104
2026-02-17 2025-12-31 13F AMPHENOL CORP-CL A COM 032095101 1,787,743 -220,475 -10.98 236,791 -1.12 0.0535
2025-11-14 2025-09-30 13F AMPHENOL CORP-CL A COM 032095101 2,008,218 188,625 10.37 239,476 39.21 0.0550
2025-08-14 2025-06-30 13F AMPHENOL CORP-CL A COM 032095101 1,819,593 -453,813 -19.96 172,025 19.42 0.0424
2025-05-14 2025-03-31 13F AMPHENOL CORP-CL A COM 032095101 2,273,406 44,578 2.00 144,055 -3.68 0.0389
2025-02-14 2024-12-31 13F AMPHENOL CORP-CL A COM 032095101 2,228,828 -126,552 -5.37 149,556 1.19 0.0384
2024-11-14 2024-09-30 13F AMPHENOL CORP-CL A COM 032095101 2,355,380 -20,888 -0.88 147,794 -3.99 0.0379
2024-08-14 2024-06-30 13F AMPHENOL CORP-CL A COM 032095101 2,376,268 1,084,953 84.02 153,933 7.61 0.0417
2024-05-15 2024-03-31 13F AMPHENOL CORP-CL A COM 032095101 1,291,315 -213,769 -14.20 143,045 -1.50 0.0394
2024-02-14 2023-12-31 13F AMPHENOL CORP-CL A COM 032095101 1,505,084 266,754 21.54 145,217 39.58 0.0435
2023-11-14 2023-09-30 13F AMPHENOL CORP-CL A COM 032095101 1,238,330 -355,640 -22.31 104,039 -23.18 0.0342
2023-08-14 2023-06-30 13F AMPHENOL CORP-CL A COM 032095101 1,593,970 398,147 33.29 135,431 38.55 0.0425
2023-05-22 2023-03-31 13F/A-1 AMPHENOL CORP-CL A COM 032095101 1,195,823 11,034 0.93 97,745 8.33 0.0321
2023-05-15 2023-03-31 13F AMPHENOL CORP-CL A COM 032095101 1,195,823 11,034 97,745 0.0059
2023-02-14 2022-12-31 13F AMPHENOL CORP-CL A COM 032095101 1,184,789 56,943 5.05 90,233 19.44 0.0309
2022-11-14 2022-09-30 13F AMPHENOL CORP-CL A COM 032095101 1,127,846 -4,502 -0.40 75,544 3.59 0.0279
2022-08-15 2022-06-30 13F AMPHENOL CORP-CL A COM 032095101 1,132,348 -678 -0.06 72,924 -14.52 0.0254
2022-05-16 2022-03-31 13F AMPHENOL CORP-CL A COM 032095101 1,133,026 -290,784 -20.42 85,315 -31.44 0.0252
2022-02-14 2021-12-31 13F AMPHENOL CORP-CL A COM 032095101 1,423,810 -216,503 -13.20 124,437 3.58 0.0344
2021-11-15 2021-09-30 13F AMPHENOL CORP-CL A COM 032095101 1,640,313 -227,866 -12.20 120,136 -6.00 0.0384
2021-08-16 2021-06-30 13F AMPHENOL CORP-CL A COM 032095101 1,868,179 74,325 4.14 127,801 7.98 0.0395
2021-05-17 2021-03-31 13F AMPHENOL CORP-CL A COM 032095101 1,793,854 881,702 96.66 118,355 -0.79 0.0393
2021-02-12 2020-12-31 13F AMPHENOL CORP-CL A COM 032095101 912,152 27,516 3.11 119,295 24.52 0.0423
2020-11-16 2020-09-30 13F AMPHENOL CORP-CL A COM 032095101 884,636 -689,844 -43.81 95,804 -36.49 0.0390
2020-08-14 2020-06-30 13F AMPHENOL CORP-CL A COM 032095101 1,574,480 155,828 10.98 150,857 46.02 0.0646
2020-05-15 2020-03-31 13F AMPHENOL CORP-CL A COM 032095101 1,418,652 112,644 8.63 103,316 -26.91 0.0542
2020-02-14 2019-12-31 13F AMPHENOL CORP-CL A COM 032095101 1,306,008 402,677 44.58 141,345 62.12 0.0588
2019-11-14 2019-09-30 13F AMPHENOL CORP-CL A COM 032095101 903,331 30,808 3.53 87,188 4.18 0.0391
2019-08-14 2019-06-30 13F AMPHENOL CORP-CL A COM 032095101 872,523 -29,920 -3.32 83,693 -1.81 0.0375
2019-05-15 2019-03-31 13F AMPHENOL CORP-CL A COM 032095101 902,443 26,261 3.00 85,232 20.07 0.0392
2019-02-14 2018-12-31 13F AMPHENOL CORP-CL A COM 032095101 876,182 -24,798 -2.75 70,984 -16.46 0.0355
2018-11-14 2018-09-30 13F AMPHENOL COM 032095101 900,980 43,328 5.05 84,970 13.86 0.0297
2018-08-14 2018-06-30 13F AMPHENOL CORP-CL A COM 032095101 857,652 8,561 1.01 74,629 2.02 0.0330
2018-05-14 2018-03-31 13F AMPHENOL CORP-CL A COM 032095101 849,091 -569,609 -40.15 73,150 -41.28 0.0331
2018-02-12 2017-12-31 13F AMPHENOL CORP-CL A COM 032095101 1,418,700 -73,037 -4.90 124,576 -1.34 0.0568
2017-11-07 2017-09-30 13F AMPHENOL CORP-CL A COM 032095101 1,491,737 127,417 9.34 126,269 25.35 0.0601
2017-08-10 2017-06-30 13F AMPHENOL CORP-CL A COM 032095101 1,364,320 71,889 5.56 100,736 9.52 0.0504
2017-05-05 2017-03-31 13F AMPHENOL CORP-CL A COM 032095101 1,292,431 -65,782 -4.84 91,977 0.77 0.0476
2017-02-03 2016-12-31 13F AMPHENOL CORP-CL A COM 032095101 1,358,213 -216,306 -13.74 91,278 -10.70 0.0498
2016-11-08 2016-09-30 13F AMPHENOL CORP-CL A COM 032095101 1,574,519 33,162 2.15 102,212 15.67 0.0573
2016-08-08 2016-06-30 13F AMPHENOL CORP-CL A COM 032095101 1,541,357 -167,652 -9.81 88,367 -10.57 0.0518
2016-05-12 2016-03-31 13F AMPHENOL CORP-CL A COM 032095101 1,709,009 44,766 2.69 98,811 13.68 0.0590
2016-02-11 2015-12-31 13F AMPHENOL CORP-CL A COM 032095101 1,664,243 31,214 1.91 86,917 4.51 0.0510
2015-11-12 2015-09-30 13F AMPHENOL CORP-CL A COM 032095101 1,633,029 -660,229 -28.79 83,166 -37.43 0.0515
2015-08-13 2015-06-30 13F AMPHENOL CORP-CL A COM 032095101 2,293,258 7,393 0.32 132,922 -1.31 0.0757
2015-05-14 2015-03-31 13F AMPHENOL CORP-CL A COM 032095101 2,285,865 -445,087 -16.30 134,693 -8.33 0.0773
2015-02-13 2014-12-31 13F AMPHENOL CORP-CL A COM 032095101 2,730,952 1,476,108 117.63 146,936 17.25 0.0856
2014-11-14 2014-09-30 13F AMPHENOL CORP-CL A COM 032095101 1,254,844 -80,271 -6.01 125,316 -2.55 0.0754
2014-08-13 2014-06-30 13F AMPHENOL CORP-CL A COM 032095101 1,335,115 5,317 0.40 128,601 5.52 0.0759
2014-05-14 2014-03-31 13F AMPHENOL CORP-CL A COM 032095101 1,329,798 437,904 49.10 121,868 53.22 0.0732
2014-02-14 2013-12-31 13F AMPHENOL CORP-CL A COM 032095101 891,894 -255,012 -22.23 79,539 -10.37 0.0482
2013-11-14 2013-09-30 13F AMPHENOL CORP-CL A COM 032095101 1,146,906 -672,998 -36.98 88,746 -37.45 0.0582
2013-08-14 2013-06-30 13F AMPHENOL CORP-CL A COM 032095101 1,819,904 1,819,904 141,891 0.0982
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.