ADTRAN Holdings, Inc. — SC 13G/A Filings
118 SC 13G/A filings on record
This page lists all SC 13G/A 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 118 SC 13G/A 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 |
|---|---|---|---|---|
| SC 13G/A | SC 13G/A | 0001104659-24-118541 | Nov 14, 2024 | — |
| SC 13G/A | — | 0000932471-24-000834 | Nov 12, 2024 | — |
| SC 13G/A | — | 0001086364-24-008250 | Jul 8, 2024 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001104659-24-013919 | Feb 12, 2024 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001104659-24-013962 | Feb 12, 2024 | — |
| SC 13G/A | — | 0001086364-24-000888 | Jan 22, 2024 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001104659-23-015205 | Feb 9, 2023 | — |
| SC 13G/A | — | 0001306550-23-004122 | Jan 26, 2023 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001104659-22-016372 | Feb 9, 2022 | — |
| SC 13G/A | SEC SCHEDULE 13G | 0000354204-22-001488 | Feb 8, 2022 | — |
| SC 13G/A | — | 0000834237-22-007885 | Feb 7, 2022 | — |
| SC 13G/A | — | 0001040188-22-000005 | Feb 1, 2022 | — |
| SC 13G/A | SEC SCHEDULE 13G | 0000354204-21-000094 | Feb 12, 2021 | — |
| SC 13G/A | — | 0001037389-21-000054 | Feb 10, 2021 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001104659-21-017340 | Feb 10, 2021 | — |
| SC 13G/A | — | 0001040188-21-000029 | Feb 2, 2021 | — |
| SC 13G/A | — | 0001040188-21-000005 | Feb 2, 2021 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001258897-20-000753 | Feb 12, 2020 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001104659-20-017117 | Feb 12, 2020 | — |
| SC 13G/A | — | 0000834237-20-001446 | Feb 4, 2020 | — |
| SC 13G/A | — | 0001040188-20-000014 | Jan 30, 2020 | — |
| SC 13G/A | SC 13G/A | 0001082327-19-000011 | Feb 14, 2019 | — |
| SC 13G/A | — | 0000932471-19-004276 | Feb 11, 2019 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001258897-19-001376 | Feb 8, 2019 | — |
| SC 13G/A | — | 0001040188-19-000002 | Feb 1, 2019 | — |
| SC 13G/A | — | 0000215457-19-000936 | Jan 24, 2019 | — |
| SC 13G/A | — | 0000932471-18-006162 | Jun 11, 2018 | — |
| SC 13G/A | — | 0001082327-18-000017 | Feb 14, 2018 | — |
| SC 13G/A | — | 0000080255-18-002292 | Feb 14, 2018 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001258897-18-001385 | Feb 9, 2018 | — |
| SC 13G/A | — | 0000932471-18-003113 | Feb 8, 2018 | — |
| SC 13G/A | — | 0001040188-18-000008 | Feb 7, 2018 | — |
| SC 13G/A | — | 0000215457-18-001472 | Jan 19, 2018 | — |
| SC 13G/A | — | 0001082327-17-000048 | Feb 23, 2017 | — |
| SC 13G/A | — | 0000932471-17-000610 | Feb 9, 2017 | — |
| SC 13G/A | — | 0000080255-17-000832 | Feb 6, 2017 | — |
| SC 13G/A | — | 0000869311-17-000218 | Jan 12, 2017 | — |
| SC 13G/A | — | 0000215457-16-006699 | Sep 9, 2016 | — |
| SC 13G/A | ADTN AS OF 06/30/2016 | 0000080255-16-001264 | Jul 8, 2016 | — |
| SC 13G/A | — | 0000932471-16-010693 | Feb 10, 2016 | — |
| SC 13G/A | ADTN AS OF 12/31/2015 | 0000080255-16-000810 | Feb 9, 2016 | — |
| SC 13G/A | — | 0000215457-16-001977 | Jan 25, 2016 | — |
| SC 13G/A | SCHEDULE 13G | 0000898358-16-000030 | Jan 22, 2016 | — |
| SC 13G/A | — | 0000906304-15-000281 | Jul 7, 2015 | — |
| SC 13G/A | SC 13G/A | 0001144204-15-010247 | Feb 17, 2015 | — |
| SC 13G/A | ADTN AS OF 12/31/2014 | 0000080255-15-000049 | Feb 10, 2015 | — |
| SC 13G/A | — | 0000932471-15-004092 | Feb 10, 2015 | — |
| SC 13G/A | ADTRAN INC | 0001193125-15-026759 | Jan 30, 2015 | — |
| SC 13G/A | — | 0000898358-15-000007 | Jan 22, 2015 | — |
| SC 13G/A | — | 0001086364-15-000197 | Jan 15, 2015 | — |