The Vanguard Group 13D and 13G filings for Amphenol Corporation:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-03-26 3:42 pm Sale | 2026-03-13 | 13G | AMPHENOL CORP APH | The Vanguard Group | 0 0.000% | -250,454,174![]() (Position Closed) | Filing |
| 2025-10-30 2:26 pm Sale | 2025-09-30 | 13G | AMPHENOL CORP APH | The Vanguard Group | 250,454,174 10.250% | -42,087,314![]() (-14.39%) | Filing |
| 2024-02-13 4:58 pm Purchase | 2023-12-29 | 13G | AMPHENOL CORP APH | The Vanguard Group | 292,541,488 12.220% | 6,862,760![]() (+2.40%) | Filing |
| 2023-02-09 11:07 am Purchase | 2022-12-30 | 13G | AMPHENOL CORP APH | The Vanguard Group | 285,678,728 12.000% | 26,946,048![]() (+10.41%) | Filing |
| 2022-02-09 3:24 pm Purchase | 2021-12-31 | 13G | AMPHENOL CORP APH | The Vanguard Group | 258,732,680 10.820% | 384,328![]() (+0.15%) | Filing |

