Sec Form 4 Filing - WASSERMAN YUVAL @ ADVANCED ENERGY INDUSTRIES INC - 2020-03-03

FORM 4 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 WASSERMAN YUVAL 2. Issuer Name and Ticker or Trading Symbol ADVANCED ENERGY INDUSTRIES INC [ AEIS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) 1625 SHARP POINT DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 03/03/2020 (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 03/03/2020 A 24,587 ( 1 ) A $ 0 174,547 D Common Stock 03/03/2020 A V 9,641 ( 2 ) A $ 59.62 184,188 D Common Stock 03/03/2020 F 4,240 ( 3 ) D $ 59.62 179,948 ( 4 ) 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 Performance Units $ 0 03/03/2020 A V 49,175 ( 5 ) ( 5 ) ( 5 ) Common Stock 49,175 $ 0 49,175 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other WASSERMAN YUVAL 1625 SHARP POINT DRIVE FORT COLLINS, CO80525 X President & CEO Signatures /s/ Thomas O. McGimpsey - Attorney-in-Fact 03/05/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Employee restricted stock units granted 3/3/2020 under the Company's 2020 Long Term Incentive Plan (LTI Plan) will vest in three equal installments beginning on the first anniversary of the grant date. ( 2 )These performance stock units were reported voluntarily 2/6/2017. Certain 2019 Revenue performance metrics were met under the 2017 LTI Plan and the shares were approved for a 3/3/2020 release by the Board of Directors. ( 3 )Payment of tax liability by withholding securities incident to vesting of restricted stock units and performance stock units. ( 4 )Represents 52,313 shares of unvested restricted stock units and 127,635 shares of common stock. ( 5 )These performance share were issued under the 2020 LTI Plan at a 200% target and have a 3-year vest period and will vest in all or in part upon achievement of performance metrics. Any awards that have not been vested and released at the end of the 3-year period will be cancelled.

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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