ALPHA & OMEGA SEMICONDUCTOR Ltd — Director's Dealing 2014

Apr 16, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)
CIK: 0001387467
Period of Report: 2014-04-14

Reporting Person: Grizelj Tony (VP of Power Discrete Product)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-04-14	Common Shares	M	4500	$2	Acquired	13857	Direct
2014-04-14	Common Shares	S	4500	$7.2344	Disposed	9357	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-04-14	Employee Share Option (right to buy)	$2.0	M	4500	Disposed	2015-04-14	Common Shares (4500.0)	Direct

Footnotes

F1: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 13, 2013.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.20 to $7.25, inclusive. The Reporting Person undertakes to provide to Alpha and Omega Semiconductor Limited, any security holder of Alpha and Omega Semiconductor Limited, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

F3: Includes 7,466 shares subject to restricted stock unit awards granted that will be issued as those units vest.

F4: The option is fully vested and immediately exercisable for all option shares.