---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-012169"
form_type: "8-K"
ticker: "RBBN"
cik: "0001708055"
company_name: "Ribbon Communications Inc."
filed_at: "2025-02-12T23:59:59+00:00"
generated_at: "2026-05-26T22:55:52.846831+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Ribbon Communications Q4 revenue $251M (record), up 11% YoY; Non-GAAP Adj. EBITDA $55M (+30%)

## Summary
- Q4 revenue $251M vs $226M YoY; GAAP operating income $33M vs $17M; Non-GAAP net income $28M vs $22M.
- Full-year 2024 revenue $834M vs $826M; GAAP operating income $17M vs loss of ($24M) in 2023.
- Non-GAAP diluted EPS Q4 $0.16 vs $0.12; full year $0.25 vs $0.21.
- Management cites strong demand from US Tier One SPs, Federal agencies, and Enterprise; expects further momentum in 2025.
- Suspension of shipments to Eastern Europe was a headwind, but company still achieved high end of original Adjusted EBITDA guidance.

## SEC filing metadata
- accession: 0001104659-25-012169
- form_type: 8-K
- ticker: RBBN
- cik: 0001708055
- company_name: Ribbon Communications Inc.
- filed_at: 2025-02-12T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1708055/000110465925012169/0001104659-25-012169-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1708055/000110465925012169/tm256301d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-012169
- JSON: https://secwatch.observer/filing/0001104659-25-012169.json
- Plain text: https://secwatch.observer/filing/0001104659-25-012169.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.