STOCK TITAN

Alpha & Omega Semiconductor (AOSL) insider gifts 736,252 shares to CHANG TRUST

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

ALPHA & OMEGA SEMICONDUCTOR Ltd director and 10% owner Mike F. Chang reported an internal share transfer. On May 22, 2026, he made a bona fide gift of 736,252 common shares to the CHANG TRUST for no consideration. A footnote states he is trustee of the trust, his immediate family members are the sole beneficiaries, and he remains the beneficial owner of the trust’s shares. After the transaction, he directly holds 3,654,074 common shares and indirectly holds 736,252 common shares through the trust, so his overall economic exposure is unchanged.

Positive

  • None.

Negative

  • None.
Insider Chang Mike F
Role null
Type Security Shares Price Value
Gift Common Shares 736,252 $0.00 --
holding Common Shares -- -- --
Holdings After Transaction: Common Shares — 3,654,074 shares (Direct, null); Common Shares — 736,252 shares (Indirect, By CHANG TRUST)
Footnotes (1)
  1. Includes 35,625 unvested shares subject to the Performance Share Unit (PSU) granted on March 15, 2024 and March 17, 2025 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person. Includes 45,000 unvested shares subject to the Market-Based Performance Share Unit (MSU) granted on July 1, 2018 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person. Includes an aggregate of 67,500 shares subject to Restricted Share Unit awards (RSU) granted on March 15, 2023, March 15, 2024, March 17, 2025, and March 16, 2026 which will be issued as such units vest in accordance with their terms, and excludes 22,500 unvested common shares subject to the PSU granted on March 16, 2026, which may become vested upon achievement of certain corporate performance goals in the future. On May 22, 2026, the reporting person transferred 736,252 common shares to the CHANG TRUST for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the trust. The reporting person remains the beneficial owner of the securities held by the trust.
Gifted shares 736,252 common shares Bona fide gift on May 22, 2026 to CHANG TRUST at $0.0000 per share
Direct holdings after transaction 3,654,074 common shares Shares directly owned by Mike F. Chang following the gift
Indirect holdings after transaction 736,252 common shares Shares held indirectly through CHANG TRUST after transfer
Unvested PSUs 35,625 shares Performance Share Units granted March 15, 2024 and March 17, 2025 subject to service-based vesting
Market-Based PSUs (MSU) 45,000 shares Market-Based Performance Share Units granted July 1, 2018 subject to service-based vesting
RSU awards 67,500 shares Restricted Share Unit awards to be issued as they vest under grants from 2023-2026
Excluded unvested PSU shares 22,500 common shares Unvested PSU from March 16, 2026 grant; vesting depends on future corporate performance goals
Performance Share Unit (PSU) financial
"Includes 35,625 unvested shares subject to the Performance Share Unit (PSU) granted on March 15, 2024 and March 17, 2025..."
Market-Based Performance Share Unit (MSU) financial
"Includes 45,000 unvested shares subject to the Market-Based Performance Share Unit (MSU) granted on July 1, 2018..."
Restricted Share Unit awards (RSU) financial
"Includes an aggregate of 67,500 shares subject to Restricted Share Unit awards (RSU) granted on March 15, 2023, March 15, 2024..."
bona fide gift financial
"The transaction code G is described as a Bona fide gift in the transaction details."
A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.
beneficial owner financial
"The reporting person remains the beneficial owner of the securities held by the trust."
A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.
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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Chang Mike F

(Last)(First)(Middle)
475 OAKMEAD PARKWAY

(Street)
SUNNYVALE CALIFORNIA 94085

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
ALPHA & OMEGA SEMICONDUCTOR Ltd [ AOSL ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Shares05/22/2026G736,252D$03,654,074(1)(2)(3)D(4)
Common Shares736,252I(4)By CHANG TRUST
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Includes 35,625 unvested shares subject to the Performance Share Unit (PSU) granted on March 15, 2024 and March 17, 2025 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person.
2. Includes 45,000 unvested shares subject to the Market-Based Performance Share Unit (MSU) granted on July 1, 2018 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person.
3. Includes an aggregate of 67,500 shares subject to Restricted Share Unit awards (RSU) granted on March 15, 2023, March 15, 2024, March 17, 2025, and March 16, 2026 which will be issued as such units vest in accordance with their terms, and excludes 22,500 unvested common shares subject to the PSU granted on March 16, 2026, which may become vested upon achievement of certain corporate performance goals in the future.
4. On May 22, 2026, the reporting person transferred 736,252 common shares to the CHANG TRUST for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the trust. The reporting person remains the beneficial owner of the securities held by the trust.
Remarks:
/s/ Yanbing Hong, attorney-in-fact for Mike F. Chang05/27/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Mike F. Chang report for AOSL?

Mike F. Chang reported a bona fide gift of 736,252 AOSL common shares. The shares were transferred to the CHANG TRUST for no consideration, reflecting an internal estate-planning type move rather than a market sale, while maintaining his beneficial ownership.

How many ALPHA & OMEGA SEMICONDUCTOR (AOSL) shares were gifted?

The filing shows a gift transfer of 736,252 common shares. These shares moved from Chang’s direct ownership into the CHANG TRUST, with a reported price per share of 0.0000, indicating no cash consideration for the transaction.

What are Mike F. Chang’s AOSL share holdings after this Form 4?

After the reported transactions, Chang directly holds 3,654,074 common shares and indirectly holds 736,252 common shares via the CHANG TRUST. The footnote explains he remains the beneficial owner of the trust’s shares despite the change in registered holder.

Does the CHANG TRUST change beneficial ownership of AOSL shares?

According to the footnote, Chang is trustee of the CHANG TRUST and his immediate family are the sole beneficiaries. The filing explicitly states he remains the beneficial owner of the securities held by the trust, so his overall beneficial ownership is unchanged.

What unvested AOSL equity awards are referenced in the Form 4 footnotes?

The footnotes reference 35,625 unvested Performance Share Units, 45,000 Market-Based Performance Share Units, and 67,500 shares subject to Restricted Share Unit awards. They also note 22,500 unvested common shares from a later PSU grant that are excluded until certain performance goals are achieved.

Was the AOSL insider transaction an open market sale or purchase?

The Form 4 identifies the main transaction as code G, a bona fide gift. The reported price per share is 0.0000, and the filing describes a transfer to the CHANG TRUST for no consideration, rather than a market sale or purchase of shares.