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 | — | 0000906304-15-000012 | Jan 5, 2015 | — |
| SC 13G/A | ADTRAN INC | 0001193125-14-111281 | Mar 24, 2014 | — |
| SC 13G/A | SC 13G/A | 0001144204-14-009769 | Feb 14, 2014 | — |
| SC 13G/A | — | 0000932471-14-002790 | Feb 10, 2014 | — |
| SC 13G/A | ADTN AS OF 12/31/2013 | 0000080255-14-000039 | Feb 7, 2014 | — |
| SC 13G/A | ADTRAN INC | 0001193125-14-027370 | Jan 30, 2014 | — |
| SC 13G/A | — | 0001086364-14-000306 | Jan 28, 2014 | — |
| SC 13G/A | — | 0000898358-14-000003 | Jan 16, 2014 | — |
| SC 13G/A | — | 0000906304-14-000015 | Jan 6, 2014 | — |
| SC 13G/A | — | 0000315066-13-003592 | Aug 12, 2013 | — |
| SC 13G/A | — | 0000315066-13-003321 | Jun 10, 2013 | — |
| SC 13G/A | — | 0000932471-13-005359 | Feb 22, 2013 | — |
| SC 13G/A | — | 0000315066-13-002210 | Feb 14, 2013 | — |
| SC 13G/A | SCHEDULE 13G/A (AMENDMENT NO. 7) | 0001437749-13-001403 | Feb 12, 2013 | — |
| SC 13G/A | SCHEDULE 13G/A (AMENDMENT NO 6) | 0001437749-13-001404 | Feb 12, 2013 | — |
| SC 13G/A | ADTN AS OF 12/31/12 | 0000080255-13-000364 | Feb 11, 2013 | — |
| SC 13G/A | — | 0001086364-13-003114 | Feb 8, 2013 | — |
| SC 13G/A | — | 0000898358-13-000003 | Jan 24, 2013 | — |
| SC 13G/A | — | 0000906304-13-000013 | Jan 3, 2013 | — |
| SC 13G/A | — | 0000898358-12-000038 | Nov 13, 2012 | — |
| SC 13G/A | DISCLOSURE DOCUMENT | 0000902219-12-000584 | Oct 10, 2012 | — |
| SC 13G/A | — | 0000906304-12-000441 | Aug 7, 2012 | — |
| SC 13G/A | DISCLOSURE DOCUMENT | 0000902219-12-000504 | Mar 12, 2012 | — |
| SC 13G/A | DISCLOSURE DOCUMENT | 0000902219-12-000029 | Feb 14, 2012 | — |
| SC 13G/A | SC 13G/A | 0001193125-12-055580 | Feb 13, 2012 | — |
| SC 13G/A | — | 0001086364-12-000976 | Feb 10, 2012 | — |
| SC 13G/A | SCHEDULE 13G/A (AMENDMENT NO. 5) | 0001437749-12-001190 | Feb 8, 2012 | — |
| SC 13G/A | SCHEDULE 13G/A (AMENDMENT NO. 6) | 0001437749-12-001191 | Feb 8, 2012 | — |
| SC 13G/A | — | 0000906304-12-000016 | Jan 5, 2012 | — |
| SC 13G/A | SEC FILING | 0000902219-11-000993 | Aug 10, 2011 | — |
| SC 13G/A | DOC ONE | 0000315066-11-003586 | Jun 10, 2011 | — |
| SC 13G/A | SEC FILING | 0000902219-11-000489 | Feb 14, 2011 | — |
| SC 13G/A | DOC ONE | 0000315066-11-002190 | Feb 14, 2011 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001179022-11-000013 | Feb 11, 2011 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001179022-11-000012 | Feb 11, 2011 | — |
| SC 13G/A | — | 0001086364-11-002515 | Feb 3, 2011 | — |
| SC 13G/A | — | 0000906304-11-000015 | Jan 11, 2011 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001179022-10-000016 | Feb 16, 2010 | — |
| SC 13G/A | DOC ONE | 0000315066-10-001356 | Feb 16, 2010 | — |
| SC 13G/A | SCHEDULE 13G/A | 0001179022-10-000017 | Feb 16, 2010 | — |
| SC 13G/A | — | 0000906304-10-000014 | Jan 22, 2010 | — |
| SC 13G/A | SCHEDULE 13G AMENDMENT 3 | 0001179022-09-000072 | Jun 15, 2009 | — |
| SC 13G/A | SCHEDULE 13G AMENDMENT 2 | 0001179022-09-000071 | Jun 15, 2009 | — |
| SC 13G/A | DOC ONE | 0000315066-09-001405 | Feb 17, 2009 | — |
| SC 13G/A | ADNT AS OF 12/31/08 | 0000080255-09-000495 | Feb 13, 2009 | — |
| SC 13G/A | SCHEDULE 13G AMENDMENT 1 | 0001179022-09-000013 | Feb 12, 2009 | — |
| SC 13G/A | SCHEDULE 13G AMENDMENT 2 | 0001179022-09-000014 | Feb 12, 2009 | — |
| SC 13G/A | — | 0000906304-09-000006 | Jan 23, 2009 | — |
| SC 13G/A | — | 0000906304-08-000405 | Sep 4, 2008 | — |
| SC 13G/A | — | 0000913414-08-004525 | Jul 9, 2008 | — |