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 OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Oldham Paul R
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)
EVP, CFO
(Last)          (First)          (Middle)

1595 WYNKOOP STREET, SUITE 800
3. Date of Earliest Transaction (MM/DD/YYYY)

3/1/2023
(Street)

DENVER, CO 80202
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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 3/1/2023  A  9460 (1)A$93.47 42316 D  
Common Stock 3/1/2023  F  786 (2)D$93.47 41530 D  
Common Stock 3/3/2023  F  1057 (3)D$94.58 40473 (4)D  

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Performance Units $0.00 3/1/2023  A   V 9460 (5)    (5) (5)Common Stock 9460 $0.00 9460 D  

Explanation of Responses:
(1) Employee Restricted Stock Units granted on 03/01/2023 under the Company's 2023 Long Term Incentive Plan (LTI Plan) will vest in 3 equal installments beginning on the first anniversary date of the grant.
(2) Payment of tax liability by withholding securities incident to vesting of performance stock units.
(3) Payment of tax liability by withholding securities incident to vesting of restricted stock units.
(4) Represents 18,971 shares of unvested restricted stock units and 21,502 shares of common stock.
(5) These performance share awards were issued under the LTI Plan at 100% of 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 vested earned and released at the end of the 3-year period will be cancelled.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Oldham Paul R
1595 WYNKOOP STREET, SUITE 800
DENVER, CO 80202


EVP, CFO

Signatures
/s/ Elizabeth K. Vonne - Attorney-in-Fact3/3/2023
**Signature of Reporting PersonDate


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).
Note:File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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