X0303 4 2010-02-09 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 2010-02-09 4 S 0 500 13.2875 D 6276199 D Common Stock 2010-02-09 4 S 0 494 13.326 D 6275705 D Common Stock 2010-02-09 4 S 0 594 13.33 D 6275111 D Common Stock 2010-02-09 4 S 0 675 13.34 D 6274436 D Common Stock 2010-02-09 4 S 0 706 13.35 D 6273730 D Common Stock 2010-02-09 4 S 0 606 13.36 D 6273124 D Common Stock 2010-02-09 4 S 0 1000 13.364 D 6272124 D Common Stock 2010-02-09 4 S 0 1300 13.37 D 6270824 D Common Stock 2010-02-09 4 S 0 1100 13.38 D 6269724 D Common Stock 2010-02-09 4 S 0 1000 13.3815 D 6268724 D Common Stock 2010-02-09 4 S 0 2281 13.39 D 6266443 D Common Stock 2010-02-09 4 S 0 595 13.39 D 6265848 D Common Stock 2010-02-09 4 S 0 100 13.3901 D 6265748 D Common Stock 2010-02-09 4 S 0 500 13.393 D 6265248 D Common Stock 2010-02-09 4 S 0 300 13.40 D 6264948 D Common Stock 2010-02-09 4 S 0 700 13.407 D 6264248 D Common Stock 2010-02-09 4 S 0 100 13.41 D 6264148 D Common Stock 2010-02-09 4 S 0 100 13.42 D 6264048 D Common Stock 2010-02-09 4 S 0 1100 13.44 D 6262948 D Common Stock 2010-02-09 4 S 0 500 13.45 D 6262448 D Common Stock 2010-02-09 4 S 0 300 13.454 D 6262148 D Common Stock 2010-02-09 4 S 0 100 13.46 D 6262048 D Common Stock 2010-02-09 4 S 0 300 13.4601 D 6261748 D Common Stock 2010-02-09 4 S 0 200 13.47 D 6261548 D Common Stock 2010-02-09 4 S 0 300 13.472 D 6261248 D Common Stock 2010-02-09 4 S 0 834 13.48 D 6260414 D Common Stock 2010-02-09 4 S 0 500 13.486 D 6259914 D Common Stock 2010-02-09 4 S 0 2000 13.4925 D 6257914 D Common Stock 2010-02-09 4 S 0 787 13.496 D 6257127 D Common Stock 2010-02-09 4 S 0 276 13.50 D 6256851 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