secwatch.observer — SEC 8-K summary ====================================== Issuer: ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) CIK: 0001387467 Form: 8-K Filed at: 2026-04-17T23:59:59+00:00 Accession: 0001628280-26-025742 Event type: leadership Sentiment: neutral Materiality: 0.30 Item codes: 5.02 LLM model: deepseek-v4-flash:cloud@v2 Director Lucas S. Chang retires from AOSL board effective April 17, 2026 ------------------------------------------------------------------------ - Dr. Lucas S. Chang notified the company of his retirement from the Board on April 13, 2026. - Retirement effective April 17, 2026; no new director named. - No reasons for departure given beyond retirement; no disputes disclosed. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1387467/000162828026025742/0001628280-26-025742-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1387467/000162828026025742/aosl-20260413.htm HTML page: https://secwatch.observer/filing/0001628280-26-025742 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer