Sec Form 3 Filing - McMahon John @ ADVANCED ENERGY INDUSTRIES INC - 2010-08-18

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person McMahon John 2. Issuer Name and Ticker or Trading Symbol ADVANCED ENERGY INDUSTRIES INC [ AEIS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) (see remarks) (Last) (First) (Middle) 1625 SHARP POPINT DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 08/18/2010 (Street) FORT COLLINS, CO80525 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 4,689 ( 1 ) D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Employee Stock Option (right to buy) $ 8.95 ( 2 ) 10/28/2019 Common Stock ( the underlying security) 6,250 D Employee Stock Option (right to buy) $ 7.69 ( 3 ) 02/19/2020 Common Stock ( the underlying security) 8,625 D Employee Stock Option (right to buy) $ 7.95 ( 4 ) 04/24/2020 Common Stock ( the underlying security) 11,500 D Employee Stock Option (right to buy) $ 11.21 ( 5 ) 07/21/2020 Common Stock ( the underlying security) 11,500 D Employee Stock Option (right to buy) $ 12.77 ( 6 ) 10/27/2020 Common Stock ( the underlying security) 5,250 D Employee Stock Option (right to buy) $ 15.65 ( 7 ) 02/16/2021 Common Stock ( the underlying security) 5,250 D Employee Stock Option (right to buy) $ 16.25 ( 8 ) 04/20/2021 Common Stock ( the underlying security) 5,250 D Employee Stock Option (right to buy) $ 13.85 ( 9 ) 07/20/2021 Common Stock ( the underlying security) 5,250 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other McMahon John 1625 SHARP POPINT DRIVE FORT COLLINS, CO80525 (see remarks) Signatures /s/ Thomas O. McGimpsey (Attorney-in-Fact) 08/25/2010 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents 4,689 shares of Restricted Stock Units. ( 2 )The option is exercisable in four equal annual installments. The first installment of 1,562 options became exercisable on October 28, 2009 and the next three installments become exercisable on October 28, 2010, October 28, 2011 and October 28, 2012. ( 3 )The remaining portion of the option becomes exercisable in three equal annual installments on February 19, 2011, February 19, 2012 and February 19, 2013. ( 4 )The option is exercisable in four equal annual installments. The first installment of 2,875 options became exercisable on April 24, 2010 and the next three installments become exercisable on April 24, 2011, April 24, 2012 and April 24, 2013. ( 5 )The option is exercisable in four equal annual installments. The first installment of 2,875 options became exercisable on July 21, 2010 and the next three installments become exercisable on July 21, 2011, July 21, 2012 and July 21, 2013. ( 6 )The option is exercisable in four equal annual installments which become exercisable on October 27, 2010, October 27, 2011, October 27, 2012 and October 27, 2013. ( 7 )The option is exercisable in four equal annual installments which become exercisable on February 16, 2011, February 16, 2012, February 16, 2013 and February 16, 2014. ( 8 )The option is exercisable in four equal annual installments which become exercisable on April 20, 2011, April 20, 2012, April 20, 2013 and April 20, 2014. ( 9 )The option is exercisable in four equal annual installments which become exercisable on July 20, 2011, July 20, 2012, July 20, 2013 and July 20, 2014.

Remarks: Officer Title: principal financial officer, principal accounting officer, vice president and controller.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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