Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionGAMMA Investing LLC
Latest Disclosed Ownership52,305 shares
Latest Disclosed Value $ 6,608,737
GAMMA Investing LLC reports 2.16% increase in ownership of APH / Amphenol Corporation

On April 6, 2026 - GAMMA Investing LLC filed a 13F-HR form disclosing ownership of 52,305 shares of Amphenol Corporation (US:APH) valued at $6,608,737 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 51,197 shares of Amphenol Corporation. This represents a change in shares of 2.16% during the quarter. The current value of the position is $7,260,457 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)
2026-04-06 2026-03-31 13F AMPHENOL CORP CL A Common Stock 032095101 52,305 1,108 2.16 6,609 -4.48 0.3086
2026-01-05 2025-12-31 13F AMPHENOL CORP NEW CL A Common Stock 032095101 51,197 2,746 5.67 6,919 15.40 0.3476
2025-10-02 2025-09-30 13F AMPHENOL CORP NEW CL A Common Stock 032095101 48,451 2,792 6.11 5,996 32.99 0.3306
2025-07-14 2025-06-30 13F AMPHENOL CORP NEW CL A Common Stock 032095101 45,659 6,229 15.80 4,509 74.32 0.2851
2025-04-15 2025-03-31 13F/A-1 AMPHENOL CORP NEW CL A Common Stock 032095101 39,430 3,860 10.85 2,586 4.70 0.1941
2025-04-07 2025-03-31 13F AMPHENOL CORP NEW CL A Common Stock 032095101 2,586,214 2,550,644 39 0.2101
2025-01-03 2024-12-31 13F AMPHENOL CORP NEW CL A Common Stock 032095101 35,570 4,676 15.14 2,470 22.70 0.2106
2024-10-04 2024-09-30 13F AMPHENOL CORP NEW CL A Common Stock 032095101 30,894 5,026 2,013 0.1996
2024-10-07 2024-09-30 13F AMPHENOL CORP NEW CL A Common Stock 032095101 30,894 5,026 19.43 2,013 15.56 0.1996
2024-07-02 2024-06-30 13F AMPHENOL CORP NEW CL A Common Stock 032095101 25,868 17,699 216.66 1,743 84.93 0.2375
2024-04-05 2024-03-31 13F AMPHENOL CORP NEW CL A Common Stock 032095101 8,169 1,342 19.66 942 36.52 0.1919
2024-02-01 2023-12-31 13F AMPHENOL CORP NEW CL A Common Stock 032095101 6,827 6,827 690 0.1869
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.