AOSL 10% Owner Mike Chang Gifts 100,947 Shares

What Happened
Mike Chang (reported as a 10% owner and trustee) disposed of 100,947 common shares of Alpha & Omega Semiconductor by gifting them on August 24, 2026. The transaction is coded as a gift (G) and was reported on a Form 4 filed September 11, 2026. The shares were transferred for no consideration (price reported $0.00; total value $0).

Key Details

• Transaction date: August 24, 2026; Form 4 filed: September 11, 2026 (18 days after the transfer; beyond the standard 2-business-day reporting window).
• Transaction type/code: Gift (G) — disposed 100,947 shares; reported price $0.00; reported value $0.
• Reporting status: Mike Chang is reported as a 10% owner and trustee of the CHANG Trust; members of his immediate family are the trust’s sole beneficiaries. The filing states the reporting person remains the beneficial owner of securities held by the trust (per footnote F1).
• Footnoted holdings included in the filing (reported as part of the reporting person’s holdings): 45,000 unvested MSUs (granted 7/1/2018, F2); 35,625 unvested PSUs (granted 3/15/2024 & 3/17/2025, F3); an aggregate 67,500 RSUs from grants in 2023–2026 (F4). Footnote F4 also notes 22,500 unvested PSU from 3/16/2026 are excluded from that aggregate.
• No indication of a 10b5‑1 plan, tax withholding, or cash proceeds in this filing.

Context
Gifts are transfers for no consideration and do not necessarily signal the insider’s view of the company’s prospects. For 10% owners and trust transactions, filings can reflect estate, tax, or family planning rather than market-driven trading. The delayed filing may be of interest to investors tracking insider reporting timeliness.