ALPHA & OMEGA SEMICONDUCTOR Ltd — Director's Dealing 2011

Jul 1, 2011

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)
CIK: 0001387467
Period of Report: 2011-07-01

Reporting Person: BAILEY HOWARD (Director)

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Share Option (right to buy)	$8.60	2016-07-05	Common Shares (7500)		Direct
Share Option (right to buy)	$18.00	2020-04-27	Common Shares (7500)		Direct
Share Option (right to buy)	$12.06	2020-11-17	Common Shares (7500)		Direct

Footnotes

F1: As of July 1, 2011, the option is fully vested and immediately exercisable for all option shares.

F2: The option was granted on November 18, 2010 and becomes exercisable upon the ealier of (i) the director's completion of one (1) year of board service measured from the grant date or (ii) the date of the regular annual shareholders meeting for the year following the year in which the option was granted, provided that the individual continues his board service through such date.