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 0 200 10.8221 D 8218801 D Common Stock 2009-08-24 4 S 0 3071 10.83 D 8215730 D Common Stock 2009-08-24 4 S 0 517 10.8303 D 8215213 D Common Stock 2009-08-24 4 S 0 700 10.8309 D 8214513 D Common Stock 2009-08-24 4 S 0 5 10.8322 D 8214508 D Common Stock 2009-08-24 4 S 0 2783 10.84 D 8211725 D Common Stock 2009-08-24 4 S 0 300 10.8414 D 8211425 D Common Stock 2009-08-24 4 S 0 2902 10.85 D 8208523 D Common Stock 2009-08-24 4 S 0 1849 10.8501 D 8206674 D Common Stock 2009-08-24 4 S 0 400 10.8504 D 8206274 D Common Stock 2009-08-24 4 S 0 1000 10.8509 D 8205274 D Common Stock 2009-08-24 4 S 0 170 10.8522 D 8205104 D Common Stock 2009-08-24 4 S 0 898 10.86 D 8204206 D Common Stock 2009-08-24 4 S 0 900 10.8609 D 8203306 D Common Stock 2009-08-24 4 S 0 2900 10.87 D 8200406 D Common Stock 2009-08-24 4 S 0 600 10.89 D 8199806 D Common Stock 2009-08-24 4 S 0 100 10.8904 D 8199706 D Common Stock 2009-08-24 4 S 0 751 10.90 D 8198955 D Common Stock 2009-08-24 4 S 0 400 10.91 D 8198555 D Common Stock 2009-08-24 4 S 0 100 10.92 D 8198455 D Common Stock 2009-08-24 4 S 0 2200 10.9203 D 8196255 D Common Stock 2009-08-24 4 S 0 700 10.93 D 8195555 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