X0303 4 2010-03-22 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 2010-03-22 4 S 0 200 14.40 D 5896431 D Common Stock 2010-03-22 4 S 0 900 14.43 D 5895531 D Common Stock 2010-03-22 4 S 0 100 14.435 D 5895431 D Common Stock 2010-03-22 4 S 0 500 14.44 D 5894931 D Common Stock 2010-03-22 4 S 0 300 14.45 D 5894631 D Common Stock 2010-03-22 4 S 0 300 14.46 D 5894331 D Common Stock 2010-03-22 4 S 0 600 14.49 D 5893731 D Common Stock 2010-03-22 4 S 0 200 14.50 D 5893531 D Common Stock 2010-03-22 4 S 0 400 14.505 D 5893131 D Common Stock 2010-03-22 4 S 0 1000 14.51 D 5892131 D Common Stock 2010-03-22 4 S 0 205 14.53 D 5891926 D Common Stock 2010-03-22 4 S 0 787 14.55 D 5891139 D Common Stock 2010-03-22 4 S 0 100 14.557 D 5891039 D Common Stock 2010-03-22 4 S 0 900 14.56 D 5890139 D Common Stock 2010-03-22 4 S 0 400 14.565 D 5889739 D Common Stock 2010-03-22 4 S 0 300 14.57 D 5889439 D Common Stock 2010-03-22 4 S 0 3450 14.59 D 5885989 D Common Stock 2010-03-22 4 S 0 1705 14.60 D 5884284 D Common Stock 2010-03-22 4 S 0 2800 14.61 D 5881484 D Common Stock 2010-03-22 4 S 0 3179 14.62 D 5878305 D Common Stock 2010-03-22 4 S 0 100 14.6275 D 5878205 D Common Stock 2010-03-22 4 S 0 100 14.63 D 5878105 D Common Stock 2010-03-22 4 S 0 718 14.65 D 5877387 D Common Stock 2010-03-22 4 S 0 1687 14.67 D 5875700 D Common Stock 2010-03-22 4 S 0 1700 14.68 D 5874000 D Common Stock 2010-03-22 4 S 0 100 14.685 D 5873900 D Common Stock 2010-03-22 4 S 0 1600 14.69 D 5872300 D Common Stock 2010-03-22 4 S 0 3006 14.70 D 5869294 D Common Stock 2010-03-22 4 S 0 400 14.705 D 5868894 D Common Stock 2010-03-22 4 S 0 100 14.7075 D 5868794 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) 2010-03-24