X0303 4 2009-12-07 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 2009-12-07 4 S 0 600 12.485 D 7156540 D Common Stock 2009-12-07 4 S 0 900 12.49 D 7155640 D Common Stock 2009-12-07 4 S 0 400 12.491 D 7155240 D Common Stock 2009-12-07 4 S 0 100 12.4925 D 7155140 D Common Stock 2009-12-07 4 S 0 600 12.495 D 7154540 D Common Stock 2009-12-07 4 S 0 2000 12.499 D 7152540 D Common Stock 2009-12-07 4 S 0 2880 12.50 D 7149660 D Common Stock 2009-12-07 4 S 0 4880 12.50 D 7144860 D Common Stock 2009-12-07 4 S 0 1400 12.5001 D 7143460 D Common Stock 2009-12-07 4 S 0 1600 12.5046 D 7141860 D Common Stock 2009-12-07 4 S 0 500 12.51 D 7141360 D Common Stock 2009-12-07 4 S 0 200 12.51 D 7141160 D Common Stock 2009-12-07 4 S 0 1000 12.5225 D 7140160 D Common Stock 2009-12-07 4 S 0 2000 12.5225 D 7138160 D Common Stock 2009-12-07 4 S 0 15 12.523 D 7138145 D Common Stock 2009-12-07 4 S 0 3000 12.5245 D 7135145 D Common Stock 2009-12-07 4 S 0 1500 12.53 D 7133645 D Common Stock 2009-12-07 4 S 0 5800 12.54 D 7127845 D Common Stock 2009-12-07 4 S 0 1000 12.5401 D 7126845 D Common Stock 2009-12-07 4 S 0 1100 12.5425 D 7125745 D Common Stock 2009-12-07 4 S 0 100 12.545 D 7125645 D Common Stock 2009-12-07 4 S 0 2000 12.55 D 7123645 D Common Stock 2009-12-07 4 S 0 2000 12.56 D 7121645 D Common Stock 2009-12-07 4 S 0 2900 12.57 D 7118745 D Common Stock 2009-12-07 4 S 0 100 12.575 D 7118645 D Common Stock 2009-12-07 4 S 0 800 12.61 D 7117845 D Common Stock 2009-12-07 4 S 0 200 12.615 D 7117645 D Common Stock 2009-12-07 4 S 0 800 12.62 D 7116845 D Common Stock 2009-12-07 4 S 0 1500 12.6225 D 7115345 D Common Stock 2009-12-07 4 S 0 200 12.625 D 7115145 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) 2009-12-09