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 0 100 10.4501 D 8136719 D Common Stock 2009-08-31 4 S 0 200 10.46 D 8136519 D Common Stock 2009-08-31 4 S 0 700 10.47 D 8135819 D Common Stock 2009-08-31 4 S 0 100 10.4733 D 8135719 D Common Stock 2009-08-31 4 S 0 600 10.48 D 8135119 D Common Stock 2009-08-31 4 S 0 200 10.4833 D 8134919 D Common Stock 2009-08-31 4 S 0 300 10.4836 D 8134619 D Common Stock 2009-08-31 4 S 0 2000 10.49 D 8132619 D Common Stock 2009-08-31 4 S 0 1800 10.50 D 8130819 D Common Stock 2009-08-31 4 S 0 100 10.5001 D 8130719 D Common Stock 2009-08-31 4 S 0 1400 10.5011 D 8129319 D Common Stock 2009-08-31 4 S 0 600 10.5022 D 8128719 D Common Stock 2009-08-31 4 S 0 1300 10.51 D 8127419 D Common Stock 2009-08-31 4 S 0 100 10.5111 D 8127319 D Common Stock 2009-08-31 4 S 0 800 10.5127 D 8126519 D Common Stock 2009-08-31 4 S 0 403 10.52 D 8126116 D Common Stock 2009-08-31 4 S 0 100 10.5222 D 8126016 D Common Stock 2009-08-31 4 S 0 100 10.54 D 8125916 D Common Stock 2009-08-31 4 S 0 600 10.55 D 8125316 D Common Stock 2009-08-31 4 S 0 100 10.5533 D 8125216 D Common Stock 2009-08-31 4 S 0 100 10.58 D 8125116 D Common Stock 2009-08-31 4 S 0 100 10.5844 D 8125016 D Common Stock 2009-08-31 4 S 0 500 10.5845 D 8124516 D Common Stock 2009-08-31 4 S 0 100 10.59 D 8124416 D Common Stock 2009-08-31 4 S 0 100 10.5966 D 8124316 D Common Stock 2009-08-31 4 S 0 100 10.60 D 8124216 D Common Stock 2009-08-31 4 S 0 100 10.62 D 8124116 D Common Stock 2009-08-31 4 S 0 100 10.6455 D 8124016 D Common Stock 2009-08-31 4 S 0 100 10.78 D 8123916 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