Welcome to our dedicated page for ALPHA & OMEGA SEMICONDUCTOR SEC filings (Ticker: AOSL), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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Alpha & Omega Semiconductor executive vice president of worldwide sales and business development, Bing Xue, completed an open-market sale of 1,832 common shares at $31.21 per share under a pre-arranged Rule 10b5-1 trading plan. After the sale, Xue directly holds 132,617 shares, which the disclosure notes include 22,500 unvested market-based performance share units, 18,750 unvested performance share units, and 38,750 shares subject to restricted share unit awards, while excluding 15,000 unvested common shares tied to a separate performance share unit grant.
Morgan Stanley Smith Barney LLC reported a proposed sale of 26,517 shares of Common stock by Yifan Liang on 04/14/2026 via Form 144. The filing lists the sale value as $810,495.24. The record also shows previously issued Performance Shares (2,901; 2,862) and Restricted Stock (2,862) grants with grant dates of 03/15/2021 and 03/15/2023.
Alpha and Omega Semiconductor Limited reported that director Dr. Lucas S. Chang has decided to retire from its Board of Directors. He notified the company on April 13, 2026, and his retirement will be effective April 17, 2026.
AOSL files a Rule 144 notice reporting planned resale and a recent transaction in common stock. The filing identifies 7,377 performance shares and 7,507 restricted shares as listed securities. It also discloses that Stephen Chang sold 5,594 shares on 04/14/2026 for $178,448.60.
Alpha & Omega Semiconductor CFO Yifan Liang sold common shares of AOSL in pre-planned trades. On April 14, 2026, he completed open-market sales totaling 26,517 common shares at prices around $29, $30, and about $32.00 per share under a Rule 10b5-1 trading plan adopted on August 21, 2025.
After these transactions, Liang directly holds 278,628 common shares, plus significant unvested equity awards. These include 22,500 market-based performance share units, 25,625 performance share units, and 52,500 restricted share units that may vest over time if service and performance conditions are met.
ALPHA & OMEGA SEMICONDUCTOR Ltd Chief Executive Officer Stephen Chunping Chang sold 5,594 common shares on April 14, 2026 in an open-market transaction at $31.90 per share. The sale was made under a pre‑arranged Rule 10b5-1 trading plan adopted on September 8, 2025.
Following the sale, he directly holds 650,785 common shares, which include 22,500 unvested Market-Based Performance Share Units, 79,375 unvested Performance Share Units, and 161,250 shares tied to Restricted Share Unit awards. This figure excludes 67,500 unvested common shares under a later PSU grant that depend on future corporate performance goals.
AOSL Form 144 notice shows proposed sales of Common stock by a holder represented by Morgan Stanley Smith Barney LLC Executive Financial Services. The excerpt lists two reported dispositions by Bing Xue: 2,408 shares for $52,783.36 on 03/16/2026 and 2,460 shares for $54,931.80 on 02/17/2026. The filing references Performance Shares with a date of 03/15/2025 and includes an administrative header dated 04/16/2026.
Morgan Stanley Smith Barney LLC Executive Financial Services filed a Form 144 disclosing proposed sales of common stock linked to prior equity awards. The filing lists a total of 26,517 shares and specific award lots dated 03/15/2021, 03/15/2022, and 03/15/2023. Sales are reported for 04/14/2026 on NASDAQ.
Alpha & Omega Semiconductor Ltd ownership disclosure: Dimensional Fund Advisors reports beneficial ownership of 1,563,871 shares of Common Stock, representing 5.3% of the class. Dimensional states 1,529,421 shares as sole voting power and 1,563,871 shares as sole dispositive power. The filing is an amendment (No. 9) signed 04/09/2026.