| Filed | Form | Description | |
|---|---|---|---|
| 6/6/25 | DEFA14A | DEFA14A | → |
| 6/6/25 | DEFR14A | DEFR14A | → |
| 5/27/25 | DEFA14A | DEFA14A | → |
| 5/13/25 | DEFA14A | DEFA14A | → |
| 3/31/25 | DEFA14A | DEFA14A | → |
| 3/31/25 | DEF 14A | DEF 14A | → |
| ↓ | |||
| Filed | Form | Description | |
|---|---|---|---|
| 3/5/26 | 4 | 4 | → |
| 3/5/26 | 4/A | 4/A | → |
| 1/30/26 | 4/A | 4/A | → |
| 1/28/26 | 4 | 4 | → |
| 1/28/26 | 4 | 4 | → |
| 1/27/26 | 4 | 4 | → |
| ↓ | |||
Adtran, Inc. is an American fiber networking and telecommunications company headquartered in Huntsville, Alabama.