Ribbon Communications Inc. — DEFM14A Filings
1 DEFM14A filing on record
This page lists all DEFM14A 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 1 DEFM14A document with the SEC since 2017. To view all SEC filings by Ribbon Communications Inc., see the full filings list.
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 |
|---|---|---|---|---|
| DEFM14A | DEFM14A | 0001047469-20-000145 | Jan 10, 2020 | — |