Form 4 Filing for Alpha & Omega Semiconductor Ltd.

Mike F. Chang, a director and 10% owner of ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL), reported a transaction on May 22, 2026. On this date, 736,252 common shares were transferred to the CHANG TRUST for no consideration. Mr. Chang is the trustee of this trust, and his immediate family members are the sole beneficiaries. Despite the transfer, Mr. Chang remains the beneficial owner of these securities. The filing also notes other holdings and awards, including unvested shares subject to Performance Share Units (PSUs) and Restricted Share Unit awards (RSUs). The post-transaction shares owned by Mr. Chang are 3,654,074.