Amphenol Corporation
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership5,906,177 shares
Latest Disclosed Value $ 746,237,493
Neuberger Berman Group LLC reports 11.81% decrease in ownership of APH / Amphenol Corporation

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 5,906,177 shares of Amphenol Corporation (MX:APH) valued at $746,237,493 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,696,732 shares of Amphenol Corporation. This represents a change in shares of -11.81% 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 CORP-CL A Common 032095101 5,906,177 -790,555 -11.81 746,237 -17.54 0.5679
2026-02-13 2025-12-31 13F AMPHENOL CORP-CL A Common 032095101 6,696,732 705,266 11.77 904,996 22.06 0.6737
2025-11-12 2025-09-30 13F AMPHENOL CORP-CL A Common 032095101 5,991,466 -111,552 -1.83 741,444 23.03 0.5418
2025-08-25 2025-06-30 13F/A-1 AMPHENOL CORP-CL A Common 032095101 6,103,018 -1,009,535 -14.19 602,673 29.19 0.4638
2025-08-13 2025-06-30 13F AMPHENOL CORP-CL A Common 032095101 6,103,018 -1,009,535 602,673 0.2399
2025-05-13 2025-03-31 13F AMPHENOL CORP-CL A Common 032095101 7,112,553 -1,088,314 -13.27 466,512 -18.09 0.3907
2025-02-13 2024-12-31 13F AMPHENOL CORP-CL A Common 032095101 8,200,867 -655,141 -7.40 569,552 -1.30 0.4521
2024-11-14 2024-09-30 13F AMPHENOL CORP-CL A Common 032095101 8,856,008 218,216 2.53 577,049 -0.85 0.4503
2024-11-14 2024-06-30 13F/A-1 AMPHENOL CORP-CL A Common 032095101 8,637,792 5,264,922 156.10 581,972 49.58 0.4777
2024-08-13 2024-06-30 13F AMPHENOL CORP-CL A Common 032095101 8,637,792 5,264,922 581,972 0.4776
2024-11-14 2024-03-31 13F/A-1 AMPHENOL CORP-CL A Common 032095101 3,372,870 -276,582 -7.58 389,061 7.54 0.3216
2024-05-13 2024-03-31 13F AMPHENOL CORP-CL A Common 032095101 3,372,870 -276,582 389,061 0.3215
2024-11-14 2023-12-31 13F/A-2 AMPHENOL CORP-CL A Common 032095101 3,649,452 -244,087 -6.27 361,770 10.63 0.3154
2024-02-09 2023-12-31 13F AMPHENOL CORP-CL A Common 032095101 3,649,452 -244,087 361,770 0.3154
2023-11-14 2023-09-30 13F AMPHENOL CORP-CL A Common 032095101 3,893,539 -129,506 -3.22 327,018 -3.99 0.2980
2023-08-11 2023-06-30 13F AMPHENOL CORP-CL A Common 032095101 4,023,045 -189,309 -4.49 340,602 -0.86 0.3046
2023-05-12 2023-03-31 13F AMPHENOL CORP-CL A Common 032095101 4,212,354 -176,709 -4.03 343,539 2.70 0.3186
2023-02-13 2022-12-31 13F AMPHENOL CORP-CL A Common 032095101 4,389,063 -75,569 -1.69 334,502 11.64 0.3279
2022-11-15 2022-09-30 13F AMPHENOL CORP-CL A Common 032095101 4,464,632 -489,758 -9.89 299,637 -6.06 0.3129
2022-08-15 2022-06-30 13F AMPHENOL CORP-CL A Common 032095101 4,954,390 -26,926 -0.54 318,956 -15.02 0.3205
2022-05-23 2022-03-31 13F/A-1 AMPHENOL CORP-CL A Common 032095101 4,981,316 -93,626 -1.84 375,346 -15.12 0.3180
2022-05-13 2022-03-31 13F AMPHENOL CORP-CL A Common 032095101 4,981,316 -93,626 373,943 0.1668
2022-02-11 2021-12-31 13F AMPHENOL CORP-CL A Common 032095101 5,074,942 -444,754 -8.06 442,194 9.72 0.3469
2021-11-12 2021-09-30 13F AMPHENOL CORP-CL A Common 032095101 5,519,696 -132,628 -2.35 403,032 4.51 0.3523
2021-08-13 2021-06-30 13F AMPHENOL CORP-CL A Common 032095101 5,652,324 554,242 10.87 385,638 14.74 0.3366
2021-05-13 2021-03-31 13F AMPHENOL CORP-CL A Common 032095101 5,098,082 2,822,330 124.02 336,111 12.97 0.3210
2021-02-10 2020-12-31 13F AMPHENOL CORP-CL A Common 032095101 2,275,752 -38,589 -1.67 297,519 18.75 0.3085
2020-11-12 2020-09-30 13F AMPHENOL CORP-CL A Common 032095101 2,314,341 -42,411 -1.80 250,536 10.96 0.2971
2020-08-13 2020-06-30 13F AMPHENOL CORP-CL A Common 032095101 2,356,752 37,344 1.61 225,788 33.57 0.2807
2020-05-14 2020-03-31 13F AMPHENOL CORP-CL A Common 032095101 2,319,408 -162,362 -6.54 169,038 -37.07 0.2577
2020-02-12 2019-12-31 13F AMPHENOL CORP-CL A Common 032095101 2,481,770 -41,420 -1.64 268,602 10.31 0.3135
2019-11-13 2019-09-30 13F AMPHENOL CORP-CL A Common 032095101 2,523,190 -128,344 -4.84 243,488 -4.28 0.2974
2019-08-13 2019-06-30 13F AMPHENOL CORP-CL A Common 032095101 2,651,534 -20,577 -0.77 254,388 0.81 0.3043
2019-05-13 2019-03-31 13F AMPHENOL CORP-CL A Common 032095101 2,672,111 164,202 6.55 252,354 24.20 0.3092
2019-02-12 2018-12-31 13F AMPHENOL CORP-CL A Common 032095101 2,507,909 67,727 2.78 203,190 -11.44 0.2832
2018-11-16 2018-09-30 13F/A-1 AMPHENOL CORP-CL A Common 032095101 2,440,182 -61,819 -2.47 229,426 5.21 0.2600
2018-11-13 2018-09-30 13F AMPHENOL CORP-CL A Common 032095101 2,440,182 -61,819 229,426
2018-08-13 2018-06-30 13F AMPHENOL CORP-CL A Common 032095101 2,502,001 258,677 11.53 218,058 12.85 0.2407
2018-05-08 2018-03-31 13F AMPHENOL CORP-CL A Common 032095101 2,243,324 -20,565 -0.91 193,224 -2.80 0.2208
2018-02-14 2017-12-31 13F AMPHENOL CORP-CL A Common 032095101 2,263,889 2,146 0.09 198,780 3.84 0.2285
2017-11-15 2017-09-30 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,261,743 3,248 0.14 191,434 14.82 0.2395
2017-08-08 2017-06-30 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,258,495 32,958 1.48 166,722 5.26 0.2141
2017-05-10 2017-03-31 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,225,537 -42,907 -1.89 158,391 3.90 0.2044
2017-02-06 2016-12-31 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,268,444 -43,162 -1.87 152,439 1.58 0.2047
2016-11-02 2016-09-30 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,311,606 -46,748 -1.98 150,069 10.99 0.2036
2016-08-05 2016-06-30 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,358,354 -36,629 -1.53 135,204 -2.36 0.1863
2016-05-06 2016-03-31 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,394,983 -66,342 -2.70 138,478 7.72 0.1904
2016-01-28 2015-12-31 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,461,325 -146,854 -5.63 128,555 -3.28 0.1683
2015-11-10 2015-09-30 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,608,179 7,635 0.29 132,913 -11.83 0.1713
2015-07-31 2015-06-30 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,600,544 -2,380 -0.09 150,754 -1.72 0.1676
2015-05-06 2015-03-31 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 2,602,924 2,602,924 0.00 153,390 0.1638
2015-02-05 2014-12-31 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 0 -1,281,681 -100.00 0 -100.00
2014-11-04 2014-09-30 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 1,281,681 -6,646 -0.52 127,989 3.12 0.1313
2014-08-05 2014-06-30 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 1,288,327 69,436 5.70 124,117 11.11 0.1212
2014-05-05 2014-03-31 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 1,218,891 -20,066 -1.62 111,710 1.10 0.1136
2014-02-11 2013-12-31 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 1,238,957 132,245 11.95 110,490 29.02 0.1136
2013-10-29 2013-09-30 13F/A-1 AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 1,106,712 75,942 7.37 85,637 6.60 0.0951
2013-10-29 2013-09-30 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 916,803 54,798
2013-08-13 2013-06-30 13F AMPHENOL CORP NEW-CL A COMMON STOCK 032095101 1,030,770 1,030,770 80,338 0.0955
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.