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BCS

Changes in Beneficial Ownership · 4

Alpha and Omega Semiconductor Limited

AOSLNASDAQEQUITYCurrent

Changes in Beneficial Ownership

Filed Sep 11, 2026Accepted Sep 11, 2026, 4:01 PM EDTFiling CIK 1387467Accession 0001628280-26-061534
Share

Structured filing — 4

wk-form4_1789156901.xml

Open full document ↗

Filing details

Report period
2026-08-24
Issuer
ALPHA & OMEGA SEMICONDUCTOR Ltd
Issuer CIK
0001387467
Trading symbol
AOSL

Reporting owner 1

Name
Chang Mike F
Reporting owner CIK
0001511393
Relationship
Director · 10% owner
Address
475 OAKMEAD PARKWAY, SUNNYVALE, CA, 94085

Non-derivative transactions

Non-derivative transactions · 1 reported row
SecurityTransaction dateCodeAmountA / DPrice (USD)Owned afterOwnershipNature of ownership
Common Shares2026-08-24G · Form 4100,947[F1]D03,698,839IBy CHANG TRUST
Table key
G · Form 4
Bona fide gift
D
Disposed
I
Indirect

Non-derivative holdings

Non-derivative holdings · 1 reported row
SecurityAmount ownedOwnership
Common Shares560,540[F2][F3][F4]D
Table key
D
Direct

Footnotes

F1
On August 24, 2026, the CHANG Trust gifted 100,947 common shares 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.↩ 1
F2
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.↩ 1
F3
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.↩ 1
F4
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 shares subject to the PSU granted on March 16, 2026, which may become vested upon achievement of certain corporate performance goals in the future.↩ 1

Signature 1

Signed
/s/ Yanbing Hong, attorney-in-fact for Mike F. Chang
Date
2026-09-11

Company context

Current securities

Recent company filings

  1. ARS filingSep 30, 2026
  2. DEFA14A filingSep 30, 2026
  3. DEF 14A filingSep 30, 2026
  4. S-8 filingAug 27, 2026
  5. 10-K filingAug 27, 2026

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