ADVANCED ENERGY INDUSTRIES INC — Director's Dealing 2021

May 4, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ADVANCED ENERGY INDUSTRIES INC (AEIS)
CIK: 0000927003
Period of Report: 2021-04-30

Reporting Person: FOSTER RONALD C (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-04-30	Common Stock	A	1813	$0.00	Acquired	28388	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	18425	Indirect

Footnotes

F1: The restricted stock units granted on April 30, 2021 will vest 100% at the first anniversary date of the grant date. This is an annual non-employee director grant as outlined in the 2021 proxy.

F2: Represents 1,813 unvested restricted stock units and 26,575 shares of common stock.

F3: These shares are held in the Katherine A. Foster 2020 Spousal Trust.