ADTRAN Holdings, Inc. — 425 Filings
79 425 filings on record
This page lists all 425 filings submitted to the SEC by ADTRAN Holdings, Inc. (ADTN), sorted by most recent first. Each row links to the full filing on EdgarLookup. ADTRAN Holdings, Inc. has filed 79 425 documents with the SEC since 2017. To view all SEC filings by ADTRAN Holdings, Inc., see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
11-K
11-K/A
144
15-12G
25-NSE
3
3/A
4
4/A
425
5
8-K
8-K/A
8-K12B
ARS
ARS/A
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFM14A
DEFR14A
EFFECT
NT 10-K
NT 10-Q
PRE 14A
S-3
S-3ASR
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-I
SC TO-I/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 425 | 425 | 0001193125-22-190218 | Jul 8, 2022 | — |
| 425 | 425 | 0001193125-22-188936 | Jul 7, 2022 | — |
| 425 | 425 | 0001193125-22-188791 | Jul 7, 2022 | — |
| 425 | 425 | 0001193125-22-188629 | Jul 6, 2022 | — |
| 425 | 425 | 0001193125-22-188627 | Jul 6, 2022 | — |
| 425 | 425 | 0001193125-22-188587 | Jul 6, 2022 | — |
| 425 | 425 | 0001193125-22-188581 | Jul 6, 2022 | — |
| 425 | 425 | 0001193125-22-045328 | Feb 17, 2022 | — |
| 425 | 425 | 0001193125-22-045291 | Feb 17, 2022 | — |
| 425 | 425 | 0001193125-22-021952 | Jan 31, 2022 | — |
| 425 | 425 | 0001193125-22-021946 | Jan 31, 2022 | — |
| 425 | 425 | 0001193125-22-021872 | Jan 31, 2022 | — |
| 425 | 425 | 0001193125-22-018040 | Jan 26, 2022 | — |
| 425 | 425 | 0001193125-22-017164 | Jan 25, 2022 | — |
| 425 | 425 | 0001193125-22-017158 | Jan 25, 2022 | — |
| 425 | 425 | 0001193125-22-016844 | Jan 25, 2022 | — |
| 425 | 425 | 0001193125-22-016072 | Jan 24, 2022 | — |
| 425 | 425 | 0001193125-22-015844 | Jan 24, 2022 | — |
| 425 | 425 | 0001193125-22-015838 | Jan 24, 2022 | — |
| 425 | 425 | 0001193125-22-014819 | Jan 21, 2022 | — |
| 425 | 425 | 0001193125-22-013734 | Jan 20, 2022 | — |
| 425 | 425 | 0001193125-22-013729 | Jan 20, 2022 | — |
| 425 | 425 | 0001193125-22-009698 | Jan 14, 2022 | — |
| 425 | 425 | 0001193125-22-008648 | Jan 13, 2022 | — |
| 425 | 425 | 0001193125-22-008644 | Jan 13, 2022 | — |
| 425 | 425 | 0001193125-22-006818 | Jan 11, 2022 | — |
| 425 | 425 | 0001193125-22-006784 | Jan 11, 2022 | — |
| 425 | 425 | 0001193125-22-006324 | Jan 11, 2022 | — |
| 425 | 425 | 0001193125-22-006215 | Jan 11, 2022 | — |
| 425 | 425 | 0001193125-22-004512 | Jan 7, 2022 | — |
| 425 | 425 | 0001193125-22-004499 | Jan 7, 2022 | — |
| 425 | 425 | 0001193125-22-004493 | Jan 7, 2022 | — |
| 425 | 425 | 0001193125-22-004491 | Jan 7, 2022 | — |
| 425 | 425 | 0001193125-22-003476 | Jan 6, 2022 | — |
| 425 | 425 | 0001193125-22-002575 | Jan 5, 2022 | — |
| 425 | 425 | 0001193125-22-000599 | Jan 3, 2022 | — |
| 425 | 425 | 0001193125-21-368047 | Dec 28, 2021 | — |
| 425 | 425 | 0001193125-21-366907 | Dec 27, 2021 | — |
| 425 | 425 | 0001193125-21-366360 | Dec 23, 2021 | — |
| 425 | 425 | 0001193125-21-365049 | Dec 22, 2021 | — |
| 425 | 425 | 0001193125-21-362536 | Dec 20, 2021 | — |
| 425 | 425 | 0001193125-21-361369 | Dec 17, 2021 | — |
| 425 | 425 | 0001193125-21-361252 | Dec 17, 2021 | — |
| 425 | 425 | 0001193125-21-361247 | Dec 17, 2021 | — |
| 425 | 425 | 0001193125-21-361246 | Dec 17, 2021 | — |
| 425 | 425 | 0001193125-21-355596 | Dec 13, 2021 | — |
| 425 | 425 | 0001193125-21-355388 | Dec 13, 2021 | — |
| 425 | 425 | 0001193125-21-351513 | Dec 8, 2021 | — |
| 425 | 425 | 0001193125-21-350279 | Dec 7, 2021 | — |
| 425 | 425 | 0001193125-21-350274 | Dec 7, 2021 | — |