암페놀 주식회사
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionPalumbo Wealth Management LLC
Latest Disclosed Ownership9,197 shares
Latest Disclosed Value $ 1,162,060
Palumbo Wealth Management LLC reports 0.32% increase in ownership of APH / Amphenol Corporation

On May 12, 2026 - Palumbo Wealth Management LLC filed a 13F-HR form disclosing ownership of 9,197 shares of Amphenol Corporation (MX:APH) valued at $1,162,060 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 9,168 shares of Amphenol Corporation. This represents a change in shares of 0.32% 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)
2026-05-12 2026-03-31 13F AMPHENOL CL A 032095101 9,197 29 0.32 1,162 -6.14 0.2836
2026-01-21 2025-12-31 13F AMPHENOL CORP CL A 032095101 9,168 29 0.32 1,239 10.14 0.3057
2025-11-10 2025-09-30 13F AMPHENOL CORP CL A 032095101 9,139 43 0.47 1,124 25.17 0.3591
2025-07-15 2025-06-30 13F AMPHENOL CORP CL A 032095101 9,096 49 0.54 898 51.43 0.2782
2025-04-22 2025-03-31 13F AMPHENOL CORP CL A 032095101 9,047 21 0.23 593 -5.27 0.1983
2025-01-30 2024-12-31 13F AMPHENOL CORP CL A 032095101 9,026 23 0.26 627 6.83 0.2340
2024-10-28 2024-09-30 13F AMPHENOL CORP CL A 032095101 9,003 15 0.17 587 -3.14 0.2281
2024-08-02 2024-06-30 13F AMPHENOL CORP CL A 032095101 8,988 4,502 100.36 606 17.02 0.2559
2024-04-15 2024-03-31 13F AMPHENOL CORP CL A 032095101 4,486 11 0.25 517 16.70 0.2317
2024-01-22 2023-12-31 13F AMPHENOL CORP CL A 032095101 4,475 11 0.25 444 18.45 0.2267
2023-10-16 2023-09-30 13F AMPHENOL CORP CL A 032095101 4,464 11 0.25 375 -1.06 0.2062
2023-07-26 2023-06-30 13F AMPHENOL CORP CL A 032095101 4,453 12 0.27 378 4.42 0.2314
2023-05-04 2023-03-31 13F AMPHENOL CORP CL A 032095101 4,441 12 0.27 363 7.42 0.2414
2023-02-13 2022-12-31 13F AMPHENOL CORP CL A 032095101 4,429 13 0.29 337 13.85 0.2681
2022-11-14 2022-09-30 13F AMPHENOL CORP CL A 032095101 4,416 13 0.30 296 4.59 0.2505
2022-08-12 2022-06-30 13F AMPHENOL CORP CL A 032095101 4,403 4,403 283 0.2247
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.