X0303 4 2010-03-09 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 2010-03-09 4 S 0 1300 14.37 D 5998579 D Common Stock 2010-03-09 4 S 0 1500 14.3701 D 5997079 D Common Stock 2010-03-09 4 S 0 1000 14.38 D 5996079 D Common Stock 2010-03-09 4 S 0 600 14.39 D 5995479 D Common Stock 2010-03-09 4 S 0 200 14.40 D 5995279 D Common Stock 2010-03-09 4 S 0 200 14.41 D 5995079 D Common Stock 2010-03-09 4 S 0 500 14.42 D 5994579 D Common Stock 2010-03-09 4 S 0 100 14.4209 D 5994479 D Common Stock 2010-03-09 4 S 0 2030 14.43 D 5992449 D Common Stock 2010-03-09 4 S 0 327 14.44 D 5992122 D Common Stock 2010-03-09 4 S 0 2100 14.45 D 5990022 D Common Stock 2010-03-09 4 S 0 38 14.452 D 5989984 D Common Stock 2010-03-09 4 S 0 1893 14.46 D 5988091 D Common Stock 2010-03-09 4 S 0 412 14.47 D 5987679 D Common Stock 2010-03-09 4 S 0 2000 14.4701 D 5985679 D Common Stock 2010-03-09 4 S 0 300 14.48 D 5985379 D Common Stock 2010-03-09 4 S 0 3200 14.49 D 5982179 D Common Stock 2010-03-09 4 S 0 2500 14.50 D 5979679 D Common Stock 2010-03-09 4 S 0 500 14.5001 D 5979179 D Common Stock 2010-03-09 4 S 0 600 14.5012 D 5978579 D Common Stock 2010-03-09 4 S 0 2000 14.51 D 5976579 D Common Stock 2010-03-09 4 S 0 1000 14.5155 D 5975579 D Common Stock 2010-03-09 4 S 0 1000 14.52 D 5974579 D Common Stock 2010-03-09 4 S 0 500 14.525 D 5974079 D Common Stock 2010-03-09 4 S 0 1400 14.53 D 5972679 D Common Stock 2010-03-09 4 S 0 500 14.5301 D 5972179 D Common Stock 2010-03-09 4 S 0 200 14.5325 D 5971979 D Common Stock 2010-03-09 4 S 0 100 14.535 D 5971879 D Common Stock 2010-03-09 4 S 0 3401 14.54 D 5968478 D Common Stock 2010-03-09 4 S 0 700 14.5401 D 5967778 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) 2010-03-10