ADTN News
Official issuer or fund updates, exact SEC current reports, and large established publisher coverage, newest first. Every lawfully retained item remains in the corpus; each public page contains at most 100 rows. Headlines open the exact source; summaries are concise descriptions and not investment recommendations. Captured 2026-08-31.
| Date | Type | Publisher | Headline | Summary |
|---|---|---|---|---|
| 2026-08-10 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2026-08-04 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2026-07-23 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,1.02,2.03,9.01. |
| 2026-07-22 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2026-06-26 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,8.01,9.01. |
| 2026-05-18 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.03,5.07,9.01. |
| 2026-05-05 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2026-04-07 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2026-02-26 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2026-01-22 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2025-12-11 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2025-11-04 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2025-09-22 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,2.03,3.02,9.01. |
| 2025-09-17 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,8.01,9.01. |
| 2025-08-05 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2025-07-30 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.07,8.01,9.01. |
| 2025-07-17 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K/A | ADTRAN Holdings, Inc. filed Form 8-K/A covering items 2.02,7.01,9.01. |
| 2025-07-16 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2025-05-28 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2025-05-27 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 8.01,9.01. |
| 2025-05-13 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 4.02,8.01,9.01. |
| 2025-05-12 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,9.01. |
| 2025-05-08 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2025-04-16 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 7.01,9.01. |
| 2025-03-07 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,7.01,9.01. |
| 2025-02-27 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2024-11-07 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2024-08-30 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2024-08-06 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2024-08-02 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02. |
| 2024-06-10 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,2.03,9.01. |
| 2024-05-09 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,5.07,9.01. |
| 2024-05-07 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2024-05-03 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2024-04-17 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.05,9.01. |
| 2024-03-15 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2024-02-27 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2024-02-20 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 4.02. |
| 2024-01-22 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,2.03,9.01. |
| 2023-12-06 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2023-12-05 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2023-11-07 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2023-10-24 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,5.03,9.01. |
| 2023-10-17 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2023-09-29 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02. |
| 2023-08-14 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K/A | ADTRAN Holdings, Inc. filed Form 8-K/A covering items 2.02,9.01. |
| 2023-08-10 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K/A | ADTRAN Holdings, Inc. filed Form 8-K/A covering items 2.02,9.01. |
| 2023-08-10 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 4.02,9.01. |
| 2023-08-07 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,7.01,9.01. |
| 2023-06-28 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2023-06-01 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2023-05-30 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02. |
| 2023-05-15 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.07,9.01. |
| 2023-05-09 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2023-04-11 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2023-04-03 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2023-03-30 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2023-02-21 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2023-02-08 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.02,9.01. |
| 2023-01-26 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2023-01-19 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 8.01,9.01. |
| 2022-12-05 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,9.01. |
| 2022-11-09 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K/A | ADTRAN Holdings, Inc. filed Form 8-K/A covering items 2.02. |
| 2022-11-08 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2022-10-26 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 8.01. |
| 2022-10-25 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2022-10-25 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K/A | ADTRAN Holdings, Inc. filed Form 8-K/A covering items 2.02,9.01. |
| 2022-10-18 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 8.01,9.01. |
| 2022-09-30 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K/A | ADTRAN Holdings, Inc. filed Form 8-K/A covering items 5.02,9.01. |
| 2022-08-04 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2022-07-22 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,1.02,2.03,9.01. |
| 2022-07-15 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.01,5.02,9.01. |
| 2022-07-08 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.01,3.01,3.03,5.01,5.02,5.03,7.01,9.01. |
| 2022-07-07 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 7.01,9.01. |
| 2022-06-30 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.04,9.01. |
| 2022-05-23 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,2.03,9.01. |
| 2022-05-13 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.07. |
| 2022-05-05 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2022-04-06 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,2.03,9.01. |
| 2022-02-03 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2022-01-06 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.07,7.01,9.01. |
| 2021-12-28 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 8.01. |
| 2021-11-29 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2021-11-02 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2021-11-02 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 7.01,9.01. |
| 2021-10-15 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2021-10-07 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02. |
| 2021-09-01 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02. |
| 2021-08-30 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 1.01,7.01,9.01. |
| 2021-08-05 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2021-05-18 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.07. |
| 2021-05-06 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2021-02-26 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K/A | ADTRAN Holdings, Inc. filed Form 8-K/A covering items 2.02,9.01. |
| 2021-02-04 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2020-11-03 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2020-08-06 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |
| 2020-07-23 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.03,9.01. |
| 2020-05-15 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.07. |
| 2020-05-11 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 5.02,9.01. |
| 2020-05-07 | Current report | SEC filing | ADTRAN Holdings, Inc. filed Form 8-K | ADTRAN Holdings, Inc. filed Form 8-K covering items 2.02,9.01. |