Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionLazard Asset Management Llc
Latest Disclosed Ownership3,178,900 shares
Latest Disclosed Value $ 401,653,963
Lazard Asset Management Llc reports 15.30% decrease in ownership of APH / Amphenol Corporation

On May 15, 2026 - Lazard Asset Management Llc filed a 13F-HR form disclosing ownership of 3,178,900 shares of Amphenol Corporation (US:APH) valued at $401,654,015 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,752,993 shares of Amphenol Corporation. This represents a change in shares of -15.30% during the quarter. The current value of the position is $441,263,109 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.

Upgrade to unlock premium data and export to Excel .

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 CL A 032095101 3,178,900 -574,093 -15.30 401,654 -20.81 0.6608
2026-02-17 2025-12-31 13F AMPHENOL CORP CL A 032095101 3,752,993 -2,431,599 -39.32 507,179 -33.73 0.8593
2025-11-14 2025-09-30 13F AMPHENOL CORP CL A 032095101 6,184,592 -341,537 -5.23 765,343 118,742.08 1.0304
2025-08-14 2025-06-30 13F AMPHENOL Common Stock 032095101 6,526,129 -2,305,516 -26.11 644 11.23 0.8869
2025-05-15 2025-03-31 13F AMPHENOL Common Stock 032095101 8,831,645 -1,569,838 -15.09 579 -19.81 0.8894
2025-02-14 2024-12-31 13F AMPHENOL Common Stock 032095101 10,401,483 -1,326,522 -11.31 722 -5.50 1.0568
2024-11-14 2024-09-30 13F AMPHENOL Common Stock 032095101 11,728,005 393,667 3.47 764 0.13 1.0219
2024-08-14 2024-06-30 13F AMPHENOL Common Stock 032095101 11,334,338 4,352,376 62.34 764 -5.22 0.9578
2024-07-09 2024-03-31 13F/A-1 AMPHENOL Common Stock 032095101 6,981,962 -135,059 -1.90 805 14.18 0.9790
2024-05-14 2024-03-31 13F AMPHENOL Common Stock 032095101 6,981,962 -135,059 805 0.9771
2024-02-14 2023-12-31 13F AMPHENOL Common Stock 032095101 7,117,021 98,974 1.41 706 19.69 0.8926
2023-11-14 2023-09-30 13F AMPHENOL Common Stock 032095101 7,018,047 -65,583 -0.93 589 -2.00 0.8018
2023-08-15 2023-06-30 13F AMPHENOL Common Stock 032095101 7,083,630 191,043 2.77 602 6.75 0.7407
2023-05-15 2023-03-31 13F AMPHENOL Common Stock 032095101 6,892,587 287,198 4.35 563 -99.89 0.7382
2023-02-15 2022-12-31 13F AMPHENOL Common Stock 032095101 6,605,389 667,998 11.25 502,933 26.50 0.6928
2022-11-14 2022-09-30 13F AMPHENOL Common Stock 032095101 5,937,391 -215,535 -3.50 397,567 0.36 0.5808
2022-08-09 2022-06-30 13F AMPHENOL Common Stock 032095101 6,152,926 429,560 7.51 396,124 -8.15 0.5357
2022-05-13 2022-03-31 13F AMPHENOL Common Stock 032095101 5,723,366 -20,883 -0.36 431,255 -14.16 0.4997
2022-02-09 2021-12-31 13F AMPHENOL Common Stock 032095101 5,744,249 -38,561 -0.67 502,391 18.64 0.5346
2021-11-15 2021-09-30 13F AMPHENOL Common Stock 032095101 5,782,810 643,310 12.52 423,475 20.45 0.4778
2021-08-12 2021-06-30 13F AMPHENOL Common Stock 032095101 5,139,500 -4,524 -0.09 351,592 3.61 0.3946
2021-05-14 2021-03-31 13F AMPHENOL Common Stock 032095101 5,144,024 2,869,244 126.13 339,350 14.08 0.4110
2021-02-11 2020-12-31 13F AMPHENOL Common Stock 032095101 2,274,780 15,543 0.69 297,472 21.61 0.3759
2020-11-13 2020-09-30 13F AMPHENOL Common Stock 032095101 2,259,237 658,494 41.14 244,607 59.49 0.3438
2020-08-13 2020-06-30 13F AMPHENOL Common Stock 032095101 1,600,743 1,597,793 54,162.47 153,366 71,902.82 0.2357
2020-05-14 2020-03-31 13F AMPHENOL Common Stock 032095101 2,950 -3,528 -54.46 213 -69.57 0.0004
2020-02-13 2019-12-31 13F AMPHENOL Common Stock 032095101 6,478 6,452 24,815.38 700 34,900.00 0.0010
2019-11-14 2019-09-30 13F AMPHENOL Common Stock 032095101 26 -20,958 -99.88 2 -99.90 0.0000
2019-08-14 2019-06-30 13F AMPHENOL Common Stock 032095101 20,984 16,557 374.00 2,013 381.58 0.0033
2019-08-28 2019-03-31 13F/A-1 AMPHENOL Common Stock 032095101 4,427 -17,855 -80.13 418 -76.84 0.0007
2019-05-13 2019-03-31 13F AMPHENOL Common Stock 032095101 4,427 -17,855 418
2019-08-28 2018-12-31 13F/A-1 AMPHENOL Common Stock 032095101 22,282 22,256 85,600.00 1,805 90,150.00 0.0033
2019-02-13 2018-12-31 13F AMPHENOL Common Stock 032095101 22,282 22,256 1,805
2019-08-30 2018-09-30 13F/A-1 AMPHENOL Common Stock 032095101 26 0 0.00 2 0.00 0.0000
2018-11-13 2018-09-30 13F AMPHENOL Common Stock 032095101 26 0 2
2019-08-30 2018-06-30 13F/A-1 AMPHENOL Common Stock 032095101 26 26 2 0.0000
2018-08-13 2018-06-30 13F AMPHENOL Common Stock 032095101 26 26 2
2019-08-13 2017-03-31 13F/A-1 AMPHENOL Common Stock 032095101 0 -23 -100.00 0 -100.00
2019-07-30 2016-12-31 13F/A-1 AMPHENOL Common Stock 032095101 23 0 0.00 1 0.00 0.0000
2017-02-13 2016-12-31 13F AMPHENOL Common Stock 032095101 23 1
2019-08-07 2016-09-30 13F/A-1 AMPHENOL Common Stock 032095101 23 0 0.00 1 0.00 0.0000
2019-07-29 2016-06-30 13F/A-1 AMPHENOL Common Stock 032095101 23 23 1 0.0000
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.