---
schema_version: "secwatch.filing_event.v1"
accession: "0001564590-21-058380"
form_type: "8-K"
ticker: "LEDS"
cik: "0001333822"
company_name: "SemiLEDs Corp"
filed_at: "2021-11-26T23:59:59+00:00"
generated_at: "2026-06-28T05:16:53.107562+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# SemiLEDs Q4 net loss $1.8M, revenue flat at $1.4M; FY2021 sales decline 23%

## Summary
- Q4 revenue $1.4M (flat QoQ); GAAP net loss $1.8M ($0.42 loss per share) vs $64K loss in Q3.
- GAAP gross margin fell to 11% from 46% QoQ; operating margin negative 135%.
- FY2021 revenue $4.7M (down 23% YoY); net loss $2.9M ($0.68 per share) vs $544K loss in FY2020.
- Cash $4.8M at Aug 31, 2021 (up from $1.7M QoQ); unable to provide Q1 2022 revenue forecast due to COVID uncertainty.

## SEC filing metadata
- accession: 0001564590-21-058380
- form_type: 8-K
- ticker: LEDS
- cik: 0001333822
- company_name: SemiLEDs Corp
- filed_at: 2021-11-26T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- 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/1333822/000156459021058380/0001564590-21-058380-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1333822/000156459021058380/leds-8k_20211126.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001564590-21-058380
- JSON: https://secwatch.observer/filing/0001564590-21-058380.json
- Plain text: https://secwatch.observer/filing/0001564590-21-058380.txt

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