X0303 4 2009-08-24 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 2009-08-24 4 S 0 1327 10.82 D 8183866 D Common Stock 2009-08-24 4 S 0 100 10.8204 D 8183766 D Common Stock 2009-08-24 4 S 0 100 10.8209 D 8183666 D Common Stock 2009-08-24 4 S 0 2500 10.83 D 8181166 D Common Stock 2009-08-24 4 S 0 200 10.8318 D 8180966 D Common Stock 2009-08-24 4 S 0 1600 10.84 D 8179366 D Common Stock 2009-08-24 4 S 0 1400 10.8435 D 8177966 D Common Stock 2009-08-24 4 S 0 1300 10.85 D 8176666 D Common Stock 2009-08-24 4 S 0 200 10.8504 D 8176466 D Common Stock 2009-08-24 4 S 0 800 10.86 D 8175666 D Common Stock 2009-08-24 4 S 0 2800 10.87 D 8172866 D Common Stock 2009-08-24 4 S 0 600 10.8707 D 8172266 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) 2009-08-26