Mike F. Chang - Sep 1, 2023 Form 4 Insider Report for ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)

Role: Executive Chairman, Director, 10%+ Owner
Signature: /s/ Yanbing Hong, attorney-in-fact for Mike F. Chang
Stock symbol: AOSL
Transactions as of: Sep 1, 2023
Transactions value $: -$707,100
Form type: 4
Date filed: 9/5/2023, 06:20 PM
Previous filing: Mar 17, 2023
Next filing: Feb 9, 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AOSL	Common Shares	Options Exercise	$223K	+30K	+0.68%	$7.44^*	4.42M	Sep 1, 2023	Direct	F1, F2
transaction	AOSL	Common Shares	Sale	-$930K	-30K	-0.68%	$31.01	4.39M	Sep 1, 2023	Direct	F1, F2, F3, F4

Showing 1 to 2 of 2 entries

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AOSL	Employee Share Option (right to buy)	Options Exercise	$0	-30K	-16.67%	$0.00	150K	Sep 1, 2023	Common Share	30K	$7.44	Direct	F5

* 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	Includes 40,635 unvested shares subject to the PSU granted on March 15, 2022, 35,000 unvested shares subject to the PSU granted on March 15, 2021, and 17,500 unvested shares subject to the PSU granted on March 16, 2020 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person.
F2	Includes an aggregate of 142,500 shares subject to Restricted Share Unit awards (RSU) granted on March 16, 2020, March 15, 2021, March 15, 2022, and March 15, 2023 which will be issued as such units vest in accordance with their terms, and excludes 53,320 unvested common shares subject to the PSU granted on March 15, 2023, which may become vested upon achievement of certain corporate performance goals in the future.
F3	The sales were effected pursuant to a Rule 10b5-1 trading plan adopted previously by the Reporting Person.
F4	The price reported in Column 4 is the exact price at which all shares were sold.
F5	The option is fully vested and immediately exercisable for all option shares.