WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 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 |
| 2024-11-14 11:03 am Purchase |
2024-09-30 | 13G | ADTRAN Holdings, Inc. ADTN |
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 4,873,121 6.200% |
871,950 (+21.79%) |
Filing |
| 2024-02-12 6:04 pm Purchase |
2023-12-31 | 13G | ADTRAN Holdings, Inc. ADTN |
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 4,001,171 5.100% |
4,001,171 (New Position) |
Filing |