Bing Xue - 02 Jan 2026 Form 4 Insider Report for ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)

Role
EVP-WW Sales & Bus Development
Signature
/s/ Yanbing Hong, attorney-in-fact for Bing Xue
Issuer symbol
AOSL
Transactions as of
02 Jan 2026
Net transactions value
-$178,234
Form type
4
Filing time
05 Jan 2026, 16:02:25 UTC
Previous filing
16 Dec 2025
Next filing
16 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Xue Bing EVP-WW Sales & Bus Development 475 OAKMEAD PKWY, SUNNYVALE /s/ Yanbing Hong, attorney-in-fact for Bing Xue 05 Jan 2026 0001787488

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AOSL Common Share Tax liability $178,234 -8,627 -6.7% $20.66 119,236 02 Jan 2026 Direct F1, F2, F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 Shares withheld to satisfy the Issuer's tax withholding obligation upon the issuance and annual vesting of shares subject to Market-Based Performance Share Unit (MSU) granted on July 1, 2018.
F2 Includes 14,154 unvested shares subject to the Performance Share Unit (PSU) granted on March 15, 2022 and March 15, 2024 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person.
F3 Includes 22,500 unvested shares subject to the MSU which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person.
F4 Includes an aggregate of 40,000 shares subject to Restricted Share Unit awards (RSU) granted on March 15, 2022, March 15, 2023, March 15, 2024, and March 17, 2025 which will be issued as such units vest in accordance with their terms, and excludes 15,000 unvested common shares subject to the PSU granted on March 17, 2025, which may become vested upon achievement of certain corporate performance goals in the future.