---
schema_version: "secwatch.filing_event.v1"
accession: "0001157523-21-001341"
form_type: "8-K"
ticker: "AOSL"
cik: "0001387467"
company_name: "ALPHA & OMEGA SEMICONDUCTOR Ltd"
filed_at: "2021-11-04T23:59:59+00:00"
generated_at: "2026-06-28T12:46:17.664895+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# AOS reports record Q1 revenue $187M, EPS $0.85; CEO voluntarily cuts bonus 50%

## Summary
- Revenue $187.0M (up 23% YoY); GAAP diluted EPS $0.85 vs $0.36 YoY; non-GAAP diluted EPS $1.06 vs $0.55.
- Gross margin improved to 34.5% from 28.1% YoY; non-GAAP gross margin 35.3%.
- Operating income $24.9M vs $10.3M YoY; net income attributable to AOS $23.4M vs $9.6M.
- CEO Mike Chang voluntarily waived 50% of his 2021 cash bonus due to employee contributions; Compensation Committee approved Nov 1.

## SEC filing metadata
- accession: 0001157523-21-001341
- form_type: 8-K
- ticker: AOSL
- cik: 0001387467
- company_name: ALPHA & OMEGA SEMICONDUCTOR Ltd
- filed_at: 2021-11-04T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1387467/000115752321001341/0001157523-21-001341-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1387467/000115752321001341/a52521884.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001157523-21-001341
- JSON: https://secwatch.observer/filing/0001157523-21-001341.json
- Plain text: https://secwatch.observer/filing/0001157523-21-001341.txt

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