---
schema_version: "secwatch.filing_event.v1"
accession: "0001157523-23-001302"
form_type: "8-K"
ticker: "AOSL"
cik: "0001387467"
company_name: "ALPHA & OMEGA SEMICONDUCTOR Ltd"
filed_at: "2023-08-09T23:59:59+00:00"
generated_at: "2026-06-11T21:41:22.711561+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# AOSL Q4 FY2023 revenue $161.5M, GAAP net loss $1.1M (-$0.04 EPS); non-GAAP EPS $0.19

## Summary
- Q4 revenue $161.5M, up from $132.6M in Q3 but down 16.7% YoY from $194.0M.
- GAAP gross margin 27.6% vs 32.6% a year ago; non-GAAP gross margin 28.5%.
- GAAP net loss attributable to AOS $1.1M (diluted loss $0.04) vs net income $15.1M ($0.53) in Q4 FY2022.
- Non-GAAP net income $5.7M ($0.19 diluted) vs $27.1M ($0.95) in prior year quarter.
- Sequential improvement from Q3 operating loss of $14.4M to Q4 operating income of $2.6M.

## SEC filing metadata
- accession: 0001157523-23-001302
- form_type: 8-K
- ticker: AOSL
- cik: 0001387467
- company_name: ALPHA & OMEGA SEMICONDUCTOR Ltd
- filed_at: 2023-08-09T23:59:59+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/1387467/000115752323001302/0001157523-23-001302-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1387467/000115752323001302/a53518786.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001157523-23-001302
- JSON: https://secwatch.observer/filing/0001157523-23-001302.json
- Plain text: https://secwatch.observer/filing/0001157523-23-001302.txt

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