X0303 4 2010-02-08 0 0000927003 ADVANCED ENERGY INDUSTRIES INC AEIS 0001228910 SCHATZ DOUGLAS S & SCHATZ JILL E FAMILY TRUST PO BOX 481 FORT COLLINS CO 80522 0 0 1 0 0001007705 SCHATZ DOUGLAS S P.O. BOX 481 FORT COLLINS CO 80522 1 0 0 0 0001328181 Schatz Jill E P.O. BOX 481 FORT COLLINS CO 80522 0 0 1 0 Common Stock 2010-02-08 4 S 0 500 13.21 D 6307799 D Common Stock 2010-02-08 4 S 0 500 13.23 D 6307299 D Common Stock 2010-02-08 4 S 0 500 13.26 D 6306799 D Common Stock 2010-02-08 4 S 0 287 13.27 D 6306512 D Common Stock 2010-02-08 4 S 0 1500 13.2701 D 6305012 D Common Stock 2010-02-08 4 S 0 700 13.273 D 6304312 D Common Stock 2010-02-08 4 S 0 1000 13.276 D 6303312 D Common Stock 2010-02-08 4 S 0 13 13.279 D 6303299 D Common Stock 2010-02-08 4 S 0 400 13.28 D 6302899 D Common Stock 2010-02-08 4 S 0 300 13.2801 D 6302599 D Common Stock 2010-02-08 4 S 0 1000 13.29 D 6301599 D Common Stock 2010-02-08 4 S 0 500 13.2901 D 6301099 D Common Stock 2010-02-08 4 S 0 500 13.296 D 6300599 D Common Stock 2010-02-08 4 S 0 3400 13.30 D 6297199 D Common Stock 2010-02-08 4 S 0 200 13.3001 D 6296999 D Common Stock 2010-02-08 4 S 0 200 13.3015 D 6296799 D Common Stock 2010-02-08 4 S 0 300 13.303 D 6296499 D Common Stock 2010-02-08 4 S 0 1000 13.306 D 6295499 D Common Stock 2010-02-08 4 S 0 900 13.31 D 6294599 D Common Stock 2010-02-08 4 S 0 100 13.311 D 6294499 D Common Stock 2010-02-08 4 S 0 1100 13.32 D 6293399 D Common Stock 2010-02-08 4 S 0 700 13.3215 D 6292699 D Common Stock 2010-02-08 4 S 0 500 13.33 D 6292199 D Common Stock 2010-02-08 4 S 0 200 13.3301 D 6291999 D Common Stock 2010-02-08 4 S 0 1100 13.3315 D 6290899 D Common Stock 2010-02-08 4 S 0 300 13.333 D 6290599 D Common Stock 2010-02-08 4 S 0 100 13.34 D 6290499 D Common Stock 2010-02-08 4 S 0 1400 13.35 D 6289099 D Common Stock 2010-02-08 4 S 0 600 13.3501 D 6288499 D Common Stock 2010-02-08 4 S 0 100 13.3575 D 6288399 D These shares are owned directly by 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. Includes 26,350 shares of restricted stock units held directly by Douglas S. Schatz, who is a director of the Issuer. The Sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Plan. /S/ Thomas O. McGimpsey (Attorney-in-Fact) 2010-02-10