Exhibit 99.1 Alpha and Omega Semiconductor Reports Financial Results for the Fiscal Third Quarter of 2024 Ended March 31, 2024 SUNNYVALE, California, May 7, 2024 - Alpha and Omega Semiconductor Limited (“AOS”) (NASDAQ: AOSL) today reported financial results for the fiscal third quarter of 2024 ended March 31, 2024. The results for the fiscal third quarter of 2024 ended March 31, 2024 were as follows: GAAP Financial Comparison Quarterly (in millions, except percentage and per share data) (unaudited) Three Mo ...