Form 4: CEO Stephen Chang Sells AOSL Shares via 10b5-1 Plan
Statement of Changes in Beneficial Ownership
Alpha & Omega Semiconductor CEO Stephen Chang sold 5,594 common shares at $31.90 per share under a pre-arranged trading plan.
Summary
- CEO Stephen Chang sold 5,594 shares of Alpha & Omega Semiconductor (AOSL) on April 14, 2026.
- The shares were sold at a price of $31.90 per share.
- The transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on September 8, 2025.
- Following the sale, the CEO retains beneficial ownership of 650,785 shares.
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as a neutral event, as the sale was pre-planned and represents a small fraction of the CEO's total holdings.
Positives
- The sale was conducted under a pre-established Rule 10b5-1 trading plan, which is designed to avoid concerns regarding insider trading by scheduling sales in advance.
Negatives
- The transaction represents a reduction in the CEO's direct equity stake in the company.
Risks
- Future vesting of performance-based equity awards (MSUs and PSUs) remains subject to the satisfaction of service-based and corporate performance conditions.
Future Outlook
The filing does not provide forward-looking financial guidance, focusing solely on the disclosure of insider equity transactions.
Management Comments
- The transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on September 8, 2025.
Industry Context
StockSavvy.ai notes that executive share sales under 10b5-1 plans are standard corporate practice and generally do not signal a change in management's outlook on the company's long-term prospects.
Comparison to Industry Standards
- The use of Rule 10b5-1 plans is the industry standard for executives to liquidate equity positions while maintaining compliance with SEC regulations.
- The volume of shares sold relative to the total holdings is minor, consistent with typical periodic liquidity events for semiconductor executives.
Stakeholder Impact
- Minimal impact on shareholders as the sale was pre-planned and executed via a 10b5-1 trading plan.
Next Steps
- Future vesting of unvested RSUs and PSUs as per their respective grant terms.
Key Dates
| Date | Description |
|---|---|
| 07/01/2018 | Grant date of Market-Based Performance Share Units (MSU). |
| 03/15/2023 | Grant date of Restricted Share Units (RSU). |
| 03/15/2024 | Grant date of Performance Share Units (PSU) and RSUs. |
| 09/08/2025 | Adoption date of the Rule 10b5-1 trading plan. |
| 03/17/2025 | Grant date of Performance Share Units (PSU) and RSUs. |
| 03/16/2026 | Grant date of Restricted Share Units (RSU) and PSUs. |
| 04/14/2026 | Date of the reported share sale transaction. |
| 04/16/2026 | Filing date of the Form 4. |
Keywords
AOSL, Alpha & Omega Semiconductor, Insider Trading, Form 4, CEO, Semiconductor
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