secwatch.observer — SEC 8-K summary
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Issuer:     Ribbon Communications Inc. (RBBN)
CIK:        0001708055
Form:       8-K
Filed at:   2026-07-28T20:09:55+00:00
Accession:  0001104659-26-087534
Event type: earnings
Sentiment:  negative
Materiality: 0.70
Item codes: 2.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Ribbon Communications Q2 2026 revenue $192M, down 13% YoY; sequential improvement with record IP Optical bookings
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- Q2 2026 revenue $192M, down 13% YoY from $221M; GAAP net loss $27M vs $11M loss YoY.
- Non-GAAP adjusted EBITDA $12M, down from $32M YoY; GAAP diluted EPS ($0.15) vs ($0.06).
- Revenue up 18% sequentially; profitability improved $20M QoQ; record IP Optical bookings.
- Enterprise wins: Microsoft Teams Voice deployment with top tier financial institution; Salesforce partnership.
- Management expects sequential revenue growth and improved earnings in 2H 2026.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1708055/000110465926087534/0001104659-26-087534-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1708055/000110465926087534/tm2621444d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-26-087534

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