Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionAmalgamated Bank
Latest Disclosed Ownership260,001 shares
Latest Disclosed Value $ 32,851
Amalgamated Bank reports 1.85% decrease in ownership of APH / Amphenol Corporation

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 260,001 shares of Amphenol Corporation (US:APH) valued at $32,851,126 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 264,910 shares of Amphenol Corporation. This represents a change in shares of -1.85% during the quarter. The current value of the position is $38,381,348 USD.

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)
2026-05-08 2026-03-31 13F AMPHENOL COM 032095101 260,001 -4,909 -1.85 33 -8.57 0.2514
2026-02-05 2025-12-31 13F AMPHENOL COM 032095101 264,910 -11,113 -4.03 36 2.94 0.2584
2025-10-29 2025-09-30 13F AMPHENOL COM 032095101 276,023 5,406 2.00 34 30.77 0.2441
2025-08-04 2025-06-30 13F AMPHENOL COM 032095101 270,617 17,198 6.79 27 62.50 0.2063
2025-04-25 2025-03-31 13F AMPHENOL COM 032095101 253,419 3,387 1.35 17 -5.88 0.1422
2025-02-04 2024-12-31 13F AMPHENOL COM 032095101 250,032 -9,044 -3.49 17 6.25 0.1425
2024-10-30 2024-09-30 13F AMPHENOL COM 032095101 259,076 8,726 3.49 17 0.00 0.1391
2024-08-12 2024-06-30 13F AMPHENOL COM 032095101 250,350 124,861 99.50 17 14.29 0.1436
2024-04-23 2024-03-31 13F AMPHENOL COM 032095101 125,489 -24,768 -16.48 14 0.00 0.1238
2024-02-06 2023-12-31 13F AMPHENOL COM 032095101 150,257 -10,523 -6.54 15 7.69 0.1188
2023-11-08 2023-09-30 13F AMPHENOL COM 032095101 160,780 4,360 2.79 14 0.00 0.1150
2023-08-11 2023-06-30 13F AMPHENOL COM 032095101 156,420 -3,551 -2.22 13 0.00 0.1075
2023-05-02 2023-03-31 13F AMPHENOL COM 032095101 159,971 1,780 1.13 13 8.33 0.1114
2023-02-10 2022-12-31 13F AMPHENOL COM 032095101 158,191 -1,036 -0.65 12 -99.89 0.1074
2022-11-09 2022-09-30 13F AMPHENOL COM 032095101 159,227 -3,988 -2.44 10,662 1.47 0.1029
2022-08-15 2022-06-30 13F AMPHENOL COM 032095101 163,215 8,880 5.75 10,508 -9.64 0.0980
2022-08-25 2022-03-31 13F/A-1 AMPHENOL COM 032095101 154,335 1,686 1.10 11,629 -12.90 0.0903
2022-06-30 2022-03-31 13F AMPHENOL COM 032095101 154,335 1,686 11,629 0.0924
2022-02-15 2021-12-31 13F/A-1 AMPHENOL COM 032095101 152,649 7,924 5.48 13,351 25.98 0.0985
2022-02-15 2021-12-31 13F AMPHENOL COM 032095101 152,649 7,924 13,351 0.0985
2021-10-29 2021-09-30 13F AMPHENOL COM 032095101 144,725 -5,844 -3.88 10,598 2.89 0.0895
2021-08-16 2021-06-30 13F AMPHENOL COM 032095101 150,569 116,132 337.23 10,300 353.35 0.0826
2021-05-13 2021-03-31 13F AMPHENOL COM 032095101 34,437 16,479 91.76 2,272 -3.24 0.0852
2021-02-12 2020-12-31 13F AMPHENOL COM 032095101 17,958 99 0.55 2,348 21.41 0.0890
2020-10-30 2020-09-30 13F AMPHENOL COM 032095101 17,859 -453 -2.47 1,934 10.26 0.0841
2020-08-10 2020-06-30 13F AMPHENOL COM 032095101 18,312 -30,312 -62.34 1,754 -50.51 0.0812
2020-05-13 2020-03-31 13F AMPHENOL COM 032095101 48,624 -1,590 -3.17 3,544 -34.79 0.0866
2020-02-13 2019-12-31 13F AMPHENOL COM 032095101 50,214 1,657 3.41 5,435 15.98 0.1000
2019-11-13 2019-09-30 13F AMPHENOL COM 032095101 48,557 9,787 25.24 4,686 25.97 0.0985
2019-08-14 2019-06-30 13F AMPHENOL COM 032095101 38,770 -5,612 -12.64 3,720 -11.24 0.0868
2019-05-15 2019-03-31 13F AMPHENOL COM 032095101 44,382 898 2.07 4,191 18.96 0.1016
2019-02-15 2018-12-31 13F AMPHENOL COM 032095101 43,484 -1,271 -2.84 3,523 -16.28 0.0998
2018-11-14 2018-09-30 13F AMPHENOL COM 032095101 44,755 -1,442 -3.12 4,208 4.52 0.1041
2018-07-18 2018-06-30 13F AMPHENOL COM 032095101 46,197 2,342 5.34 4,026 6.59 0.0984
2018-05-22 2018-03-31 13F AMPHENOL COM 032095101 43,855 4,279 10.81 3,777 8.69 0.1002
2018-02-13 2017-12-31 13F AMPHENOL CORP-CL A COM 032095101 39,576 3,457 9.57 3,475 13.67 0.0940
2017-11-09 2017-09-30 13F AMPHENOL CORP-CL A COM 032095101 36,119 766 2.17 3,057 17.13 0.0952
2017-08-10 2017-06-30 13F AMPHENOL CORP-CL A COM 032095101 35,353 12,507 54.74 2,610 60.52 0.0855
2017-05-12 2017-03-31 13F AMPHENOL CORP-CL A COM 032095101 22,846 -9,771 -29.96 1,626 -25.82 0.0809
2017-02-14 2016-12-31 13F AMPHENOL CORP-CL A COM 032095101 32,617 5,654 20.97 2,192 25.26 0.0991
2016-11-15 2016-09-30 13F/A-1 AMPHENOL CORP-CL A COM 032095101 26,963 58 0.22 1,750 7.69 0.1015
2016-11-14 2016-09-30 13F AMPHENOL CORP-CL A COM 032095101 7,826 508
2016-08-16 2016-06-30 13F AMPHENOL CORP-CL A COM 032095101 26,905 14,637 119.31 1,625 129.20 0.0940
2016-05-11 2016-03-31 13F AMPHENOL CORP-CL A COM 032095101 12,268 2,923 31.28 709 45.29 0.0691
2016-02-10 2015-12-31 13F AMPHENOL CORP-CL A COM 032095101 9,345 -2,384 -20.33 488 -18.39 0.0602
2015-11-04 2015-09-30 13F AMPHENOL CORP-CL A COM 032095101 11,729 431 3.81 598 -8.70 0.0627
2015-07-10 2015-06-30 13F AMPHENOL CORP-CL A COM 032095101 11,298 346 3.16 655 1.55 0.0643
2015-04-22 2015-03-31 13F AMPHENOL CORP-CL A COM 032095101 10,952 10,952 0.00 645 0.0787
2015-01-29 2014-12-31 13F AMPHENOL CORP-CL A COM 032095101 0 -4,829 -100.00 0 -100.00
2014-11-14 2014-09-30 13F AMPHENOL CORP-CL A COM 032095101 4,829 295 6.51 482 10.30 0.0717
2014-08-11 2014-06-30 13F AMPHENOL CORP COM 032095101 4,534 457 11.21 437 16.84 0.0659
2014-05-12 2014-03-31 13F AMPHENOL CORP COM 032095101 4,077 -83 -2.00 374 0.81 0.0644
2014-02-13 2013-12-31 13F AMPHENOL CORP COM 032095101 4,160 4,160 -0.36 371 18.91 0.0631
2013-11-14 2013-09-30 13F AMPHENOL CORP COM 032095101 0 0 0 0.0000
2013-08-15 2013-06-30 13F AMPHENOL CORP COM 032095101 0 -4,175 -100.00 0 -100.00
2014-02-13 2013-03-31 13F AMPHENOL CORP COM 032095101 4,175 4,175 312 0.0885
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.