X0303 4 2009-08-31 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 2009-08-31 4 S 0 300 10.23 D 8123616 D Common Stock 2009-08-31 4 S 0 200 10.2311 D 8123416 D Common Stock 2009-08-31 4 S 0 900 10.24 D 8122516 D Common Stock 2009-08-31 4 S 0 100 10.2401 D 8122416 D Common Stock 2009-08-31 4 S 0 100 10.2411 D 8122316 D Common Stock 2009-08-31 4 S 0 100 10.2422 D 8122216 D Common Stock 2009-08-31 4 S 0 9 10.2611 D 8122207 D Common Stock 2009-08-31 4 S 0 20 10.2622 D 8122187 D Common Stock 2009-08-31 4 S 0 10 10.2633 D 8122177 D Common Stock 2009-08-31 4 S 0 700 10.30 D 8121477 D Common Stock 2009-08-31 4 S 0 400 10.3011 D 8121077 D Common Stock 2009-08-31 4 S 0 1300 10.31 D 8119777 D Common Stock 2009-08-31 4 S 0 800 10.32 D 8118977 D Common Stock 2009-08-31 4 S 0 1000 10.3218 D 8117977 D Common Stock 2009-08-31 4 S 0 1000 10.33 D 8116977 D Common Stock 2009-08-31 4 S 0 200 10.3311 D 8116777 D Common Stock 2009-08-31 4 S 0 500 10.36 D 8116277 D Common Stock 2009-08-31 4 S 0 100 10.3601 D 8116177 D Common Stock 2009-08-31 4 S 0 2000 10.37 D 8114177 D Common Stock 2009-08-31 4 S 0 100 10.3709 D 8114077 D Common Stock 2009-08-31 4 S 0 900 10.38 D 8113177 D Common Stock 2009-08-31 4 S 0 500 10.39 D 8112677 D Common Stock 2009-08-31 4 S 0 500 10.3918 D 8112177 D Common Stock 2009-08-31 4 S 0 1200 10.40 D 8110977 D Common Stock 2009-08-31 4 S 0 100 10.41 D 8110877 D Common Stock 2009-08-31 4 S 0 400 10.42 D 8110477 D Common Stock 2009-08-31 4 S 0 5 10.4201 D 8110472 D Common Stock 2009-08-31 4 S 0 600 10.4209 D 8109872 D Common Stock 2009-08-31 4 S 0 100 10.43 D 8109772 D Common Stock 2009-08-31 4 S 0 100 10.44 D 8109672 D The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plan adopted by the reporting persons on May 28, 2009. 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. /S/ Thomas O. McGimpsey (Attorney-in-Fact) 2009-09-02