{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-21-130467","form_type":"8-K","ticker":"RBBN","cik":"0001708055","company_name":"Ribbon Communications Inc.","filed_at":"2021-10-27T23:59:59+00:00","discovered_at":"2026-05-14T18:04:13.772446+00:00","generated_at":"2026-06-28T17:33:13.828063+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Ribbon Communications Q3 2021 GAAP net loss $0.40/share; revenue $210M, down 9% YoY","bullets":["Q3 GAAP revenue $210M (down 9% YoY); GAAP net loss $59M vs profit $6M; GAAP EPS loss $0.40 vs +$0.04.","Non-GAAP net income $16M ($0.11 diluted EPS) vs $22M ($0.14); Adjusted EBITDA $32M vs $43M.","Supply chain constraints reduced Q3 revenue by ~$9.5M; IP Optical book-to-bill ratio 1.17x.","Year-to-date revenue $614M (+2%); Non-GAAP diluted EPS $0.31 vs $0.24 (+29%).","CEO cites strong IP Optical customer wins and 5G/fiber investment tailwinds for 2022 growth."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-21-130467","json":"https://secwatch.observer/filing/0001104659-21-130467.json","markdown":"https://secwatch.observer/filing/0001104659-21-130467.md","text":"https://secwatch.observer/filing/0001104659-21-130467.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1708055/000110465921130467/0001104659-21-130467-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1708055/000110465921130467/tm2131109d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T17:33:13.828063+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}