X0202 4 2006-02-01 0000927003 ADVANCED ENERGY INDUSTRIES INC AEIS 0001228910 SCHATZ DOUGLAS S & SCHATZ JILL E FAMILY TRUST P.O. BOX 481 FORT COLLINS CO 80522 0 0 1 0 0001007705 SCHATZ DOUGLAS S P.O. BOX 481 FORT COLLINS CO 80522 1 0 1 0 0001328181 Schatz Jill E P.O. BOX 481 FORT COLLINS CO 80522 0 0 1 0 Common Stock 2006-02-01 4 S 0 32819 15.50 D 9481716 D Common Stock 2006-02-01 4 S 0 1600 15.51 D 9480116 D Common Stock 2006-02-01 4 S 0 1600 15.52 D 9478516 D Common Stock 2006-02-01 4 S 0 6600 15.53 D 9471916 D Common Stock 2006-02-01 4 S 0 100 15.54 D 9471816 D Common Stock 2006-02-01 4 S 0 1914 15.55 D 9469902 D Common Stock 2006-02-01 4 S 0 1478 15.56 D 9468424 D Common Stock 2006-02-01 4 S 0 2500 15.57 D 9465924 D Common Stock 2006-02-01 4 S 0 1356 15.59 D 9464568 D Common Stock 2006-02-01 4 S 0 1714 15.60 D 9462854 D Common Stock 2006-02-02 4 S 0 19600 15.50 D 9443254 D Common Stock 26350 D Per Rule 10b5-1 Sales Plan. These shares are owned directly by the Douglas S. Schatz & Jill E. Schatz Family Trust, a ten percent owner of the issuer, and indirectly by Douglas S. Schatz and Jill E. Schatz, co-trustees of the trust. Represents shares of restricted stock units held directly by Douglas S. Schatz. /s/ Mary K. Derr - Attorney-in-Fact 2006-02-03 /s/ Mary K. Derr - Attorney-in-Fact 2006-02-03 /s/ Mary K. Derr - Attorney-in-Fact 2006-02-03