---
schema_version: "secwatch.filing_event.v1"
accession: "0001387467-23-000018"
form_type: "8-K"
ticker: "AOSL"
cik: "0001387467"
company_name: "ALPHA & OMEGA SEMICONDUCTOR Ltd"
filed_at: "2023-02-24T23:59:59+00:00"
generated_at: "2026-06-19T00:38:17.516207+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Alpha and Omega Semiconductor appoints Dr. Mike F. Chang as Executive Chairman and Stephen Chang as CEO

## Summary
- Employment agreements effective March 1, 2023: Dr. Mike F. Chang as Executive Chairman, Stephen Chang as CEO.
- Each receives $490,000 annual base salary and target bonus of 100% of base salary.
- Non-CIC termination: 12 months continued base salary and health coverage; CIC termination: 24 months salary, 200% target bonus, accelerated equity vesting.
- Agreements include restrictive covenants and release of claims for severance eligibility.

## SEC filing metadata
- accession: 0001387467-23-000018
- form_type: 8-K
- ticker: AOSL
- cik: 0001387467
- company_name: ALPHA & OMEGA SEMICONDUCTOR Ltd
- filed_at: 2023-02-24T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1387467/000138746723000018/0001387467-23-000018-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1387467/000138746723000018/aosl-20230223.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001387467-23-000018
- JSON: https://secwatch.observer/filing/0001387467-23-000018.json
- Plain text: https://secwatch.observer/filing/0001387467-23-000018.txt

## Key facts
- Executive change
  Stephen Chang was appointed as Chief Executive Officer at ALPHA & OMEGA SEMICONDUCTOR Ltd.
  - Action: appointed
  - Role: Chief Executive Officer
  source text: an employment agreement with Mr. Stephen Chang (the “Stephen Chang Employment Agreement”, and together with the Mike Change Employment Agreement, the “Employment Agreements”) governing the terms of his employment as the Chief Executive Officer of the Company
  evidence_url: https://www.sec.gov/Archives/edgar/data/1387467/000138746723000018/0001387467-23-000018-index.htm
- Executive change
  Dr. Mike F. Chang was appointed as Executive Chairman at ALPHA & OMEGA SEMICONDUCTOR Ltd.
  - Action: appointed
  - Role: Executive Chairman
  source text: the Company entered into an employment agreement with Dr. Mike F. Chang (the “Mike Chang Employment Agreement”) governing the terms of his employment as the Executive Chairman of the Company
  evidence_url: https://www.sec.gov/Archives/edgar/data/1387467/000138746723000018/0001387467-23-000018-index.htm

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