SEC Filings
Search SEC EDGAR filings by company ticker and form type
arrow_back
ADTRAN Holdings, Inc.
144
3 filings
All 144 Filings
Complete history of 144 filings with the SEC
| Date Filed | View on EDGAR |
|---|---|
|
20
May
May 20, 2026
|
open_in_new View Filing |
|
07
May
May 07, 2026
|
open_in_new View Filing |
|
04
Mar
Mar 04, 2026
|
open_in_new View Filing |