ADTRAN Holdings, Inc. — 4 Filings
1,166 4 filings on record
This page lists all 4 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 1,166 4 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 |
|---|---|---|---|---|
| 4 | 4 | 0001193125-26-119867 | Mar 23, 2026 | Mar 19, 2026 |
| 4 | 4 | 0001193125-26-093954 | Mar 5, 2026 | Mar 4, 2026 |
| 4 | 4 | 0001193125-26-027417 | Jan 28, 2026 | Jan 26, 2026 |
| 4 | 4 | 0001193125-26-027411 | Jan 28, 2026 | Jan 26, 2026 |
| 4 | 4 | 0001193125-26-024818 | Jan 27, 2026 | Jan 24, 2026 |
| 4 | 4 | 0001193125-26-024827 | Jan 27, 2026 | Jan 24, 2026 |
| 4 | 4 | 0001193125-26-019464 | Jan 22, 2026 | Jan 20, 2026 |
| 4 | 4 | 0001193125-26-019455 | Jan 22, 2026 | Jan 20, 2026 |
| 4 | 4 | 0001193125-26-002903 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | 4 | 0001193125-26-002898 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | 4 | 0001193125-26-002900 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | 4 | 0001193125-26-002897 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | 4 | 0001193125-26-002901 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | 4 | 0001193125-26-002902 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | 4 | 0001193125-25-303491 | Dec 1, 2025 | Nov 26, 2025 |
| 4 | 4 | 0001193125-25-303492 | Dec 1, 2025 | Nov 28, 2025 |
| 4 | 4 | 0001193125-25-295709 | Nov 25, 2025 | Nov 24, 2025 |
| 4 | 4 | 0001193125-25-288074 | Nov 19, 2025 | Nov 17, 2025 |
| 4 | 4 | 0001193125-25-288073 | Nov 19, 2025 | Nov 17, 2025 |
| 4 | 4 | 0000950170-25-095931 | Jul 15, 2025 | Jul 13, 2025 |
| 4 | 4 | 0000950170-25-054336 | Apr 15, 2025 | Apr 13, 2025 |
| 4 | 4 | 0000950170-25-042657 | Mar 20, 2025 | Mar 19, 2025 |
| 4 | 4 | 0000950170-25-009862 | Jan 28, 2025 | Jan 24, 2025 |
| 4 | 4 | 0000950170-25-009894 | Jan 28, 2025 | Jan 24, 2025 |
| 4 | 4 | 0000950170-25-009872 | Jan 28, 2025 | Jan 24, 2025 |
| 4 | 4 | 0000950170-25-009870 | Jan 28, 2025 | Jan 24, 2025 |
| 4 | 4 | 0000950170-25-007833 | Jan 22, 2025 | Jan 20, 2025 |
| 4 | 4 | 0000950170-25-007831 | Jan 22, 2025 | Jan 20, 2025 |
| 4 | 4 | 0000950170-25-005822 | Jan 15, 2025 | Jan 13, 2025 |
| 4 | 4 | 0000950170-25-001098 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | 4 | 0000950170-25-001097 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | 4 | 0000950170-25-001100 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | 4 | 0000950170-25-001099 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | 4 | 0000950170-25-001096 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | 4 | 0000950170-25-001102 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | 4 | 0000950170-24-128540 | Nov 19, 2024 | Nov 16, 2024 |
| 4 | 4 | 0000950170-24-128542 | Nov 19, 2024 | Nov 16, 2024 |
| 4 | 4 | 0000950170-24-114665 | Oct 15, 2024 | Oct 13, 2024 |
| 4 | 4 | 0000950170-24-083957 | Jul 16, 2024 | Jul 13, 2024 |
| 4 | 4 | 0000950170-24-065898 | May 29, 2024 | May 24, 2024 |
| 4 | 4 | 0000950170-24-065897 | May 29, 2024 | May 24, 2024 |
| 4 | 4 | 0000950170-24-008903 | Jan 30, 2024 | Jan 26, 2024 |
| 4 | 4 | 0000950170-24-008910 | Jan 30, 2024 | Jan 26, 2024 |
| 4 | 4 | 0000950170-24-008906 | Jan 30, 2024 | Jan 26, 2024 |
| 4 | 4 | 0000950170-24-008901 | Jan 30, 2024 | Jan 26, 2024 |
| 4 | 4 | 0000950170-24-006533 | Jan 23, 2024 | Jan 20, 2024 |
| 4 | 4 | 0000950170-24-006531 | Jan 23, 2024 | Jan 20, 2024 |
| 4 | 4 | 0000950170-24-001257 | Jan 3, 2024 | Dec 31, 2023 |
| 4 | 4 | 0000950170-24-001254 | Jan 3, 2024 | Dec 31, 2023 |
| 4 | 4 | 0000950170-24-001252 | Jan 3, 2024 | Dec 31, 2023 |