---
schema_version: "secwatch.filing_event.v1"
accession: "0000917273-21-000025"
form_type: "8-K"
ticker: "RMBS"
cik: "0000917273"
company_name: "RAMBUS INC"
filed_at: "2021-11-01T23:59:59+00:00"
generated_at: "2026-06-28T16:01:37.466362+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Rambus Q3 2021: GAAP revenue $81.3M, record product revenue $36.7M, net income positive

## Summary
- GAAP revenue $81.3M (+43% YoY); GAAP diluted EPS $0.03 vs. ($0.11) loss in Q3 2020.
- Record product revenue of $36.7M from memory interface chips; licensing billings $66.1M.
- Closed acquisitions of AnalogX and PLDA during quarter for $97.1M net of cash acquired.
- Operating cash flow $46.0M; cash and marketable securities $419.7M at quarter end.
- Q4 2021 guidance: licensing billings $62-68M, product revenue $40-46M, non-GAAP op. costs $68-64M.

## SEC filing metadata
- accession: 0000917273-21-000025
- form_type: 8-K
- ticker: RMBS
- cik: 0000917273
- company_name: RAMBUS INC
- filed_at: 2021-11-01T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/917273/000091727321000025/0000917273-21-000025-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/917273/000091727321000025/rmbs-20211101.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000917273-21-000025
- JSON: https://secwatch.observer/filing/0000917273-21-000025.json
- Plain text: https://secwatch.observer/filing/0000917273-21-000025.txt

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