Chang Stephen Chunping 4

What Happened

• Stephen (Chang) Chunping, CEO of Alpha & Omega Semiconductor (AOSL), was granted equity awards and had shares withheld to satisfy tax obligations. On March 16, 2026 he was reported as acquiring two awards of 67,500 shares each (total 135,000 shares) at $0.00 per share (awards/grants). On the same date 25,644 shares and 17,839 shares were disposed (withheld) at $21.43 per share to cover tax withholding, totaling 43,483 shares withheld and $931,841 in tax-related value ($549,551 + $382,290).
• These transactions are awards (code A) and tax-withholding disposals (code F), not open-market purchases or voluntary sales.

Key Details

• Transaction date: March 16, 2026. Form filed March 18, 2026 (timely filing).
• Award price: $0.00 (stock awards/units). Withheld/share disposal price: $21.43.
• Withheld shares: 25,644 and 17,839 (total 43,483) to satisfy tax withholding; total cash value reported ~$931,841.
• Filing did not disclose the insider's total shares owned after these transactions.
• Notable footnotes: RSUs vest in equal annual installments over four years beginning March 16, 2026 (F1). Some shares are performance-based PSUs or MSUs subject to future vesting upon service/performance conditions (F2–F4, F7). F5/F6 explain the withheld shares related to RSU/PSU tax withholding across multiple grant dates.

Context

• These transactions are typical equity award activity: the company granted restricted/performance share units and the company withheld a portion of vested shares to satisfy tax obligations (a routine, administrative disposal), not an open-market trade signaling an investment view.
• The awards are subject to service and/or performance vesting schedules, so most of the granted shares remain unvested and will vest over time if conditions are met.