Joshua C. Chien - 20 Jul 2026 Form 4 Insider Report for ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)

Reporting relationship: Director
Issuer ticker: AOSL
Reported as of: 20 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 21 Jul 2026, 16:02:47 UTC
Prior SEC filing: 17 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/Yanbing Hong, attorney-in-fact for Joshua C. Chien

Key filing fact

Joshua C. Chien filed Form 4 for ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) on 21 Jul 2026.

Key facts

This page summarizes Joshua C. Chien's Form 4 filing for ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 21 Jul 2026, 16:02.

Change

Previous filing in this sequence was filed on 17 Jul 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002145490 Primary reporting owner

Chien Joshua C.

Relationship: Director
Address: C/O ALPHA & OMEGA SEMICONDUCTOR LIMITED, 475 OAKMEAD PKWY, SUNNYVALE
Signature: /s/Yanbing Hong, attorney-in-fact for Joshua C. Chien
Signature date: 21 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AOSL transaction

Common Share

Award

Transaction value
Shares: +1,368
Change %
Price: $0.000000^*
Shares after: 1,368
Date: 20 Jul 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Represents the Issuer's common shares subject to restricted share units (RSUs) award granted to the Reporting Person for services on the Board of Directors of the Issuer under the Issuer's 2018 Omnibus Incentive Plan. The RSUs will vest on the same dates that the annual grants made to the directors at the preceding general annual shareholders meeting vest, with the number of shares vesting on each vesting date pro rata based on the period of service.