{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-22-005984","form_type":"8-K","ticker":"RBBN","cik":"0001708055","company_name":"Ribbon Communications Inc.","filed_at":"2022-01-20T23:59:59+00:00","discovered_at":"2026-05-14T18:04:07.889904+00:00","generated_at":"2026-06-27T16:51:42.137453+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"negative","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Ribbon reports preliminary Q4 2021 revenue $231M, below guidance on supply chain issues","bullets":["Revenue $231M, gross margin 50%, non-GAAP gross margin 54%, operating loss $4M, adjusted EBITDA $26M.","Supply chain issues cut sales ~$10M, causing shortfall vs guidance; costs expected through H1 2022.","IP Optical Networks segment sales $83M (+20% QoQ); Cloud & Edge $147M with deals pushed to 2022.","Higher component and logistics costs reduced margins ~220 bps; customer/deal mix added ~200 bps.","Cash $106M; book-to-bill 1.13; CEO notes new carrier wins in US, Japan, Africa."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-22-005984","json":"https://secwatch.observer/filing/0001104659-22-005984.json","markdown":"https://secwatch.observer/filing/0001104659-22-005984.md","text":"https://secwatch.observer/filing/0001104659-22-005984.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1708055/000110465922005984/0001104659-22-005984-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1708055/000110465922005984/tm224005d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-27T16:51:42.137453+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"}