secwatch.observer — SEC 8-K summary
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Issuer:     Ribbon Communications Inc. (RBBN)
CIK:        0001708055
Form:       8-K
Filed at:   2021-10-27T23:59:59+00:00
Accession:  0001104659-21-130467
Event type: earnings
Sentiment:  negative
Materiality: 0.60
Item codes: 2.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Ribbon Communications Q3 2021 GAAP net loss $0.40/share; revenue $210M, down 9% YoY
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- 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.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1708055/000110465921130467/0001104659-21-130467-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1708055/000110465921130467/tm2131109d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-21-130467

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer