Alpha and Omega Semiconductor Limited filings document the regulatory record of a Bermuda-incorporated power semiconductor company listed under AOSL. Form 8-K reports furnish quarterly operating results and financial condition updates, including revenue, gross margin, operating results, net results, and related press release exhibits.
The company’s governance filings include definitive proxy statements, annual general meeting voting results, director elections, executive compensation disclosures, incentive bonus plan terms, and board-change reports. These filings also record shareholder voting matters, compensation committee actions, and other material events tied to the company’s public-company governance and capital-market reporting obligations.
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.
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.
Alpha & Omega Semiconductor Ltd: The Vanguard Group filed Amendment No. 3 to a Schedule 13G/A reporting 0 shares beneficially owned and 0% of the Common Stock. The filing notes an internal realignment effective January 12, 2026 and states certain Vanguard subsidiaries will report holdings separately under SEC Release No. 34-39538.
The amendment is signed by Ashley Grim as Head of Global Fund Administration on 03/26/2026.
ALPHA & OMEGA SEMICONDUCTOR Ltd Chief Operating Officer Wenjun Li reported routine equity compensation and tax-related share movements. On 2026-03-16, Li received an award of 10,000 Common Shares, increasing direct holdings to 86,558 shares. On the same date, a total of 5,607 shares were disposed of at $21.43 per share to satisfy tax withholding obligations tied to vesting Performance Share Units and Restricted Share Units, rather than through open-market sales. This amended filing corrects earlier errors in the reported number of tax-withholding shares.
ALPHA & OMEGA SEMICONDUCTOR Ltd director Mike F. Chang filed an amended insider report covering restricted share unit activity. On March 16, 2026, 14,419 Common Shares were disposed of to cover tax withholding on RSU vesting, and 22,500 Common Shares were acquired as a grant. After these changes, Chang directly held 4,390,326 Common Shares. The amendment corrects the number of shares previously reported as withheld for taxes and does not reflect any open-market buying or selling.
Alpha & Omega Semiconductor’s Chief Operating Officer Wenjun Li reported equity compensation changes. On March 16, 2026, Li received two grants of 10,000 common shares each at no cost, structured as Restricted Share Units that vest in equal annual installments over four years from March 16, 2026, subject to continued service.
The company withheld 3,272 and 2,267 common shares at $21.43 per share to cover tax obligations upon vesting of prior RSU and Performance Share Unit awards. After these transactions, Li directly holds 86,626 common shares. Footnotes note additional unvested awards, including 7,500 market-based PSUs granted in 2018, 12,500 PSUs granted in 2024 and 2025, and 25,000 RSUs granted from 2023–2026, plus a 10,000-share PSU granted March 16, 2026 that vests only if future corporate performance goals are achieved.