AMPHENOL CORP-CL A · CUSIP 032095101 · CIK 1299351
As of 2026-06-30, Madison Asset Management, LLC reported 1.18M APH (shares), valued at $207.37M, or 2.47% of its reported non-derivative portfolio. Filed 2026-08-10.
Verify history & sources →Shares decreased 5.99%; reported value increased 31.19%, and weight changed +0.51 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.
Left: % · Right: Shares · Independently scaled axes
Exact data and methodology
Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.
| Quarter | Weight | Quantity | Source |
|---|---|---|---|
| Q2 2026 | 2.47% | 1,176,112 | SEC filing ↗Filed Aug 10, 2026 |
| Q1 2026 | 1.96% | 1,251,006 | SEC filing ↗Filed May 7, 2026 |
| Q4 2025 | 2.09% | 1,340,841 | SEC filing ↗Filed Feb 4, 2026 |
| Q3 2025 | 3.33% | 2,442,702 | SEC filing ↗Filed Nov 6, 2025 |
| Q2 2025 | 2.64% | 2,478,319 | SEC filing ↗Filed Aug 11, 2025 |
| Q1 2025 | 1.86% | 2,546,347 | SEC filing ↗Filed May 6, 2025 |
| Q4 2024 | 1.78% | 2,271,402 | SEC filing ↗Filed Feb 10, 2025 |
| Q3 2024 | 1.52% | 2,075,843 | SEC filing ↗Filed Nov 12, 2024 |
| Q2 2024 | 1.63% | 1,950,806 | SEC filing ↗Filed Aug 9, 2024 |
| Q1 2024 | 1.26% | 891,055 | SEC filing ↗Filed May 9, 2024 |
| Q4 2023 | 1.08% | 804,754 | SEC filing ↗Filed Feb 12, 2024 |
| Q3 2023 | 0.96% | 778,953 | SEC filing ↗Filed Nov 13, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 0.96% | 778,953 | $65.42M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Nov 13, 2023 |
| Q4 2023 | 1.08% | 804,754 | $79.78M | Shares increased 3.31%; reported value increased 21.94%, and weight changed +0.12 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 12, 2024 |
| Q1 2024 | 1.26% | 891,055 | $102.78M | Shares increased 10.72%; reported value increased 28.84%, and weight changed +0.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 9, 2024 |
| Q2 2024 | 1.63% | 1,950,806 | $131.43M | Shares increased 118.93%; reported value increased 27.87%, and weight changed +0.37 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 9, 2024 |
| Q3 2024 | 1.52% | 2,075,843 | $135.26M | Shares increased 6.41%; reported value increased 2.92%, and weight changed -0.11 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 12, 2024 |
| Q4 2024 | 1.78% | 2,271,402 | $157.75M | Shares increased 9.42%; reported value increased 16.62%, and weight changed +0.26 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 10, 2025 |
| Q1 2025 | 1.86% | 2,546,347 | $167.01M | Shares increased 12.10%; reported value increased 5.87%, and weight changed +0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 6, 2025 |
| Q2 2025 | 2.64% | 2,478,319 | $244.73M | Shares decreased 2.67%; reported value increased 46.53%, and weight changed +0.78 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 11, 2025 |
| Q3 2025 | 3.33% | 2,442,702 | $302.28M | Shares decreased 1.44%; reported value increased 23.52%, and weight changed +0.69 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 6, 2025 |
| Q4 2025 | 2.09% | 1,340,841 | $181.20M | Shares decreased 45.11%; reported value decreased 40.06%, and weight changed -1.24 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 4, 2026 |
| Q1 2026 | 1.96% | 1,251,006 | $158.06M | Shares decreased 6.70%; reported value decreased 12.77%, and weight changed -0.13 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 7, 2026 |
| Q2 2026 | 2.47% | 1,176,112 | $207.37M | Shares decreased 5.99%; reported value increased 31.19%, and weight changed +0.51 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 10, 2026 |
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