암페놀 주식회사
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionDnB Asset Management AS
Latest Disclosed Ownership431,161 shares
Latest Disclosed Value $ 54,477,192
DnB Asset Management AS reports 20.58% increase in ownership of APH / Amphenol Corporation

On May 14, 2026 - DnB Asset Management AS filed a 13F-HR form disclosing ownership of 431,161 shares of Amphenol Corporation (MX:APH) valued at $54,477,192 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 357,586 shares of Amphenol Corporation. This represents a change in shares of 20.58% 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 431,161 73,575 20.58 54,477 12.73 0.1942
2026-02-05 2025-12-31 13F Amphenol CL A 032095101 357,586 -60,562 -14.48 48,324 -6.61 0.1686
2025-11-12 2025-09-30 13F Amphenol CL A 032095101 418,148 -96,945 -18.82 51,746 1.73 0.1935
2025-08-12 2025-06-30 13F Amphenol CL A 032095101 515,093 -73,656 -12.51 50,865 31.72 0.2109
2025-05-15 2025-03-31 13F Amphenol CL A 032095101 588,749 -138,207 -19.01 38,616 -23.51 0.1780
2025-02-12 2024-12-31 13F Amphenol CL A 032095101 726,956 -22,675 -3.02 50,487 3.36 0.2184
2024-11-12 2024-09-30 13F Amphenol CL A 032095101 749,631 -82,397 -9.90 48,846 -12.86 0.2205
2024-07-05 2024-06-30 13F Amphenol common 032095101 832,028 404,020 94.40 56,054 13.54 0.2674
2024-04-12 2024-03-31 13F Amphenol common 032095101 428,008 -210,748 -32.99 49,371 -22.03 0.2574
2024-01-04 2023-12-31 13F Amphenol common 032095101 638,756 -149,388 -18.95 63,320 -4.35 0.3287
2023-10-13 2023-09-30 13F Amphenol common 032095101 788,144 -196,534 -19.96 66,196 -20.86 0.3955
2023-07-10 2023-06-30 13F/A-1 Amphenol common 032095101 984,678 64,189 6.97 83,648 11.20 0.4809
2023-07-06 2023-06-30 13F Amphenol common 032095101 984,678 64,189 83,648 0.4922
2023-04-20 2023-03-31 13F Amphenol common 032095101 920,489 16,080 1.78 75,222 9.24 0.4768
2023-01-12 2022-12-31 13F Amphenol common 032095101 904,409 -77,320 -7.88 68,862 4.75 0.4854
2022-10-11 2022-09-30 13F Amphenol common 032095101 981,729 -69,272 -6.59 65,737 -2.85 0.5070
2022-07-08 2022-06-30 13F Amphenol common 032095101 1,051,001 87,875 9.12 67,663 -6.76 0.4757
2022-04-08 2022-03-31 13F Amphenol common 032095101 963,126 -34,798 -3.49 72,572 -16.85 0.4315
2022-01-12 2021-12-31 13F Amphenol common 032095101 997,924 69,976 7.54 87,278 28.44 0.5121
2021-10-15 2021-09-30 13F Amphenol common 032095101 927,948 132,391 16.64 67,954 24.86 0.4413
2021-07-06 2021-06-30 13F Amphenol common 032095101 795,557 197,408 33.00 54,424 37.93 0.3606
2021-04-15 2021-03-31 13F Amphenol common 032095101 598,149 571,642 2,156.57 39,460 1,038.46 0.2880
2021-01-19 2020-12-31 13F Amphenol common 032095101 26,507 3,979 17.66 3,466 42.11 0.0304
2020-10-14 2020-09-30 13F Amphenol common 032095101 22,528 -6,926 -23.51 2,439 -13.54 0.0259
2020-07-08 2020-06-30 13F Amphenol common 032095101 29,454 -7,249 -19.75 2,822 5.50 0.0331
2020-04-17 2020-03-31 13F Amphenol common 032095101 36,703 -15,733 -30.00 2,675 -52.88 0.0393
2020-01-13 2019-12-31 13F Amphenol common 032095101 52,436 4,347 9.04 5,675 22.31 0.0558
2019-10-16 2019-09-30 13F Amphenol common 032095101 48,089 -2,716 -5.35 4,641 -4.80 0.0524
2019-07-08 2019-06-30 13F Amphenol common 032095101 50,805 -2,591 -4.85 4,874 -3.33 0.0561
2019-04-11 2019-03-31 13F Amphenol common 032095101 53,396 -5,249 -8.95 5,043 6.13 0.0575
2019-01-15 2018-12-31 13F Amphenol common 032095101 58,645 2,492 4.44 4,751 -10.00 0.0616
2018-10-10 2018-09-30 13F Amphenol common 032095101 56,153 2,215 4.11 5,280 12.32 0.0593
2018-07-06 2018-06-30 13F Amphenol common 032095101 53,938 4,300 8.66 4,701 9.94 0.0555
2018-04-11 2018-03-31 13F Amphenol common 032095101 49,638 2,500 5.30 4,275 3.31 0.0515
2018-01-10 2017-12-31 13F Amphenol common 032095101 47,138 2,100 4.66 4,139 8.55 0.0499
2017-10-11 2017-09-30 13F Amphenol common 032095101 45,038 9,100 25.32 3,812 43.74 0.0507
2017-07-06 2017-06-30 13F Amphenol common 032095101 35,938 2,500 7.48 2,653 11.48 0.0387
2017-04-19 2017-03-31 13F Amphenol common 032095101 33,438 5,000 17.58 2,380 24.49 0.0374
2017-01-17 2016-12-31 13F Amphenol common 032095101 28,438 700 2.52 1,911 6.17 0.0351
2016-10-28 2016-09-30 13F Amphenol common 032095101 27,738 3,600 14.91 1,801 30.15 0.0354
2016-07-08 2016-06-30 13F Amphenol common 032095101 24,138 500 2.12 1,384 1.24 0.0293
2016-04-11 2016-03-31 13F Amphenol common 032095101 23,638 -900 -3.67 1,367 6.64 0.0285
2016-01-20 2015-12-31 13F Amphenol common 032095101 24,538 24,538 1,282 0.0275
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.