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Ribbon Communications Inc. — 8-K/A Filings

4 8-K/A filings on record

This page lists all 8-K/A filings submitted to the SEC by Ribbon Communications Inc. (RBBN), sorted by most recent first. Each row links to the full filing on EdgarLookup. Ribbon Communications Inc. has filed 4 8-K/A documents with the SEC since 2017. To view all SEC filings by Ribbon Communications Inc., see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-Q 144 3 4 4/A 424B3 8-K 8-K/A 8-K12B ARS CORRESP D DEF 14A DEFA14A DEFM14A EFFECT NT 10-K NT 10-Q PRE 14A PREM14A S-3 S-3/A S-4 S-4/A S-8 SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13G/A SD UPLOAD
Form Description Accession Number Filed Period
8-K/A FORM 8K/A 0001104659-20-120094 Oct 30, 2020 Oct 26, 2020
8-K/A FORM 8-K/A 0001104659-20-045958 Apr 13, 2020 Mar 3, 2020
8-K/A 8-K 0001104659-18-027179 Apr 26, 2018 Dec 13, 2017
8-K/A 8-K/A 0001104659-17-074293 Dec 20, 2017 Oct 27, 2017