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ADTRAN Holdings, Inc. — 3/A Filings

4 3/A filings on record

This page lists all 3/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 4 3/A documents with the SEC since 2017. To view all SEC filings by ADTRAN Holdings, Inc., see the full filings list.

Overview All Filings Financials Insiders
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
3/A PRIMARY DOCUMENT 0001773229-19-000036 Nov 26, 2019 Feb 26, 2019
3/A PRIMARY DOCUMENT 0001773229-19-000034 Nov 20, 2019 Feb 25, 2019
3/A PRIMARY DOCUMENT 0001773229-19-000027 Nov 19, 2019 Feb 11, 2019
3/A PRIMARY DOCUMENT 0001300513-06-000006 Jun 9, 2006 Jun 5, 2006