The Vanguard Group 13D and 13G filings for ADTRAN Holdings, Inc.:
- 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 |
| 2022-02-09 3:16 pm Purchase | 2021-12-31 | 13G | ADTRAN Holdings, Inc. ADTN | The Vanguard Group | 5,424,685 11.050% | 193,382 (+3.70%) | Filing |