ALPHA & OMEGA SEMICONDUCTOR Ltd — Director's Dealing 2015

Mar 18, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)
CIK: 0001387467
Period of Report: 2015-03-13

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-03-13	Common Shares	M	4500	$2	Acquired	13433	Direct
2015-03-13	Common Shares	S	4500	$8.893	Disposed	8933	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-03-13	Employee Share Option (right to buy)	$2.0	M	4500	Disposed	2015-04-14	Common Shares (4500.0)	Direct

Footnotes

F1: Includes 6,445 shares subject to restricted stock unit awards granted that will be issued as those units vest.

F2: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 12, 2015.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.80 to $9.02, 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.

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