---
schema_version: "secwatch.filing_event.v1"
accession: "0001564590-21-059594"
form_type: "8-K"
ticker: "RELL"
cik: "0000355948"
company_name: "RICHARDSON ELECTRONICS, LTD."
filed_at: "2021-12-07T23:59:59+00:00"
generated_at: "2026-06-28T03:18:28.498051+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Richardson Electronics prelim Q2 rev $54M, up 27% YoY; backlog grows to $147M

## Summary
- Preliminary Q2 FY2022 net sales ~$54.0M, up 27.3% YoY driven by strong demand across all business units.
- Backlog increased to $146.9M, up from $126.5M at end of Q1, with growth in each unit.
- Began shipping patented ULTRA3000 PEM for GE wind turbines; Canvys and ALTA750 tubes had record quarterly sales.
- Full Q2 financial results and outlook update expected on January 5, 2022.

## SEC filing metadata
- accession: 0001564590-21-059594
- form_type: 8-K
- ticker: RELL
- cik: 0000355948
- company_name: RICHARDSON ELECTRONICS, LTD.
- filed_at: 2021-12-07T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/355948/000156459021059594/0001564590-21-059594-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/355948/000156459021059594/rell-8k_20211207.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001564590-21-059594
- JSON: https://secwatch.observer/filing/0001564590-21-059594.json
- Plain text: https://secwatch.observer/filing/0001564590-21-059594.txt

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