ADVANCED ENERGY INDUSTRIES INC — Director's Dealing 2011

Apr 21, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADVANCED ENERGY INDUSTRIES INC (AEIS)
CIK: 0000927003
Period of Report: 2011-04-20

Reporting Person: WASSERMAN YUVAL (President & COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-04-20	Common Stock	F	174	$0.00	Disposed	17573	Direct

Footnotes

F1: Payment of tax liability by withholding securities incident to vesting of restricted stock units.

F2: Represents 17,573 shares of Restricted Stock Units. As of the reporting date, 2,290 are vested and sellable.